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    SubjectRe: [RFC][PATCH] bcmai: introduce AI driver
    Date
    From
    On Tue, 05 Apr 2011 21:57:42 +0200, Rafał Miłecki <zajec5@gmail.com> wrote:

    > Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
    > ---
    > I believe this driver implements AI support in the proper way. This
    > introduces
    > support for the *bus* and lets drivers register for specific cores. It
    > was
    > tested with b43 and BCM4313, reading PHY info works fine.

    Hi Rafał,


    I like the general idea of your design (and George?). It has quite some
    similarities with the brcmaxi module I posted some time ago. I did receive
    some comments and will resubmit another patch for which I hope you can
    find some time to have a look at it and provide me with some feedback. I
    think you made an excellent move forward, but I want to comment on a
    couple of things that seem to restrict the use of this module.

    1. Term Broadcom AI

    You are referring to this as Broadcom AI. However, there is nothing
    Broadcom specific about this. Basically, this functionality (core
    enumeration and generic core functions) is provided by ARM with the AMBA
    AXI and named Device Management Plugin (abbrev. DMP).

    2. Bus registration

    The bus registration mandates the use of chipcommon driver if a chipcommon
    core is detected (same for pcie). In brcm80211 driver we access the
    d11core and chipcommon. Is this still possible or should we remove all
    register access to chipcommon from our driver if we were to use bcmai.
    Also as each core is registered as a linux device does that imply a
    one-on-one relation? So one core equals one driver?

    3. Device identification

    The cores are identified by manufacturer, core id and revision in your
    patch. I would not use the revision because 4 out of 5 times a revision
    change does indicate a hardware change but no change in programming
    interface. The enumeration data does contain a more selective field
    indicating the core class (4 bits following the core identifier). I
    suggest to replace the revision field by this class field.

    4. PCI Host interface

    When building the PCI host interface variant of the bcmai it compiles in
    the source file b43_pci_ai_bridge.c. This name suggests that this module
    can only be used with b43 driver. Is that a correct observation? I see
    this as a major restriction to using the new module or could another
    driver (like ours) use the bcmai_host_pci_register() function.

    Now for the code comments, see inline remarks below.

    > Current issues:
    > 1) On second (un)load: kernel BUG at mm/slab.c:500!
    >
    > TODO:
    > 1) DMA
    > 2) IRQ
    > ---
    > drivers/Kconfig | 2 +
    > drivers/Makefile | 1 +
    > drivers/bcmai/Kconfig | 30 ++
    > drivers/bcmai/Makefile | 5 +
    > drivers/bcmai/b43_pci_ai_bridge.c | 33 ++
    > drivers/bcmai/bcmai_private.h | 41 ++
    > drivers/bcmai/core.c | 52 ++
    > drivers/bcmai/driver_chipcommon.c | 87 ++++
    > drivers/bcmai/driver_chipcommon_pmu.c | 134 +++++
    > drivers/bcmai/driver_pci.c | 191 ++++++++
    > drivers/bcmai/host_pci.c | 177 +++++++
    > drivers/bcmai/main.c | 249 ++++++++++
    > drivers/bcmai/scan.c | 383 +++++++++++++++
    > drivers/bcmai/scan.h | 53 ++
    > include/linux/bcmai/bcmai.h | 210 ++++++++
    > include/linux/bcmai/bcmai_driver_chipcommon.h | 644
    > +++++++++++++++++++++++++
    > include/linux/bcmai/bcmai_driver_pci.h | 92 ++++
    > include/linux/bcmai/bcmai_regs.h | 34 ++
    > include/linux/mod_devicetable.h | 15 +
    > scripts/mod/file2alias.c | 20 +
    > 20 files changed, 2453 insertions(+), 0 deletions(-)
    > create mode 100644 drivers/bcmai/Kconfig
    > create mode 100644 drivers/bcmai/Makefile
    > create mode 100644 drivers/bcmai/b43_pci_ai_bridge.c
    > create mode 100644 drivers/bcmai/bcmai_private.h
    > create mode 100644 drivers/bcmai/core.c
    > create mode 100644 drivers/bcmai/driver_chipcommon.c
    > create mode 100644 drivers/bcmai/driver_chipcommon_pmu.c
    > create mode 100644 drivers/bcmai/driver_pci.c
    > create mode 100644 drivers/bcmai/host_pci.c
    > create mode 100644 drivers/bcmai/main.c
    > create mode 100644 drivers/bcmai/scan.c
    > create mode 100644 drivers/bcmai/scan.h
    > create mode 100644 include/linux/bcmai/bcmai.h
    > create mode 100644 include/linux/bcmai/bcmai_driver_chipcommon.h
    > create mode 100644 include/linux/bcmai/bcmai_driver_pci.h
    > create mode 100644 include/linux/bcmai/bcmai_regs.h
    >
    > diff --git a/drivers/Kconfig b/drivers/Kconfig
    > index 177c7d1..a1d9198 100644
    > --- a/drivers/Kconfig
    > +++ b/drivers/Kconfig
    > @@ -68,6 +68,8 @@ source "drivers/watchdog/Kconfig"
    >
    > source "drivers/ssb/Kconfig"
    >
    > +source "drivers/bcmai/Kconfig"
    > +

    Probably a different name would be better. bcm suggests this is broadcom
    specific, but it is hardware functionality provided by ARM. Suggestions:
    axi, axidmp,amba_axi.

    > source "drivers/mfd/Kconfig"
    >
    > source "drivers/regulator/Kconfig"
    > diff --git a/drivers/Makefile b/drivers/Makefile
    > index 3f135b6..dcd102c 100644
    > --- a/drivers/Makefile
    > +++ b/drivers/Makefile
    > @@ -110,6 +110,7 @@ obj-$(CONFIG_HID) += hid/
    > obj-$(CONFIG_PPC_PS3) += ps3/
    > obj-$(CONFIG_OF) += of/
    > obj-$(CONFIG_SSB) += ssb/
    > +obj-$(CONFIG_BCMAI) += bcmai/
    > obj-$(CONFIG_VHOST_NET) += vhost/
    > obj-$(CONFIG_VLYNQ) += vlynq/
    > obj-$(CONFIG_STAGING) += staging/
    > diff --git a/drivers/bcmai/Kconfig b/drivers/bcmai/Kconfig
    > new file mode 100644
    > index 0000000..36b3995
    > --- /dev/null
    > +++ b/drivers/bcmai/Kconfig
    > @@ -0,0 +1,30 @@
    > +config BCMAI_POSSIBLE
    > + bool
    > + depends on HAS_IOMEM && HAS_DMA
    > + default y
    > +
    > +menu "Broadcom's AI"
    > + depends on BCMAI_POSSIBLE
    > +
    > +config BCMAI
    > + tristate "AI support"
    > + depends on BCMAI_POSSIBLE
    > +
    > +config BCMAI_HOST_PCI_POSSIBLE
    > + bool
    > + depends on BCMAI && PCI = y
    > + default y
    > +
    > +config BCMAI_HOST_PCI
    > + bool "Support for AI on PCI-host bus"
    > + depends on BCMAI_HOST_PCI_POSSIBLE
    > +
    > +config BCMAI_DEBUG
    > + bool "BCMAI debugging"
    > + depends on BCMAI
    > + help
    > + This turns on additional debugging messages.
    > +
    > + If unsure, say N
    > +
    > +endmenu
    > diff --git a/drivers/bcmai/Makefile b/drivers/bcmai/Makefile
    > new file mode 100644
    > index 0000000..02bed60
    > --- /dev/null
    > +++ b/drivers/bcmai/Makefile
    > @@ -0,0 +1,5 @@
    > +bcmai-y += main.o scan.o core.o
    > +bcmai-y += driver_chipcommon.o
    > driver_chipcommon_pmu.o
    > +bcmai-y += driver_pci.o
    > +bcmai-$(CONFIG_BCMAI_HOST_PCI) += host_pci.o b43_pci_ai_bridge.o

    Is the file b43_pci_ai_bridge.c specific for b43 driver or should it list
    all pci devices known to have chip with this AMBA AXI DMP plugin?

    > +obj-$(CONFIG_BCMAI) += bcmai.o
    > diff --git a/drivers/bcmai/b43_pci_ai_bridge.c
    > b/drivers/bcmai/b43_pci_ai_bridge.c
    > new file mode 100644
    > index 0000000..6fcfb96
    > --- /dev/null
    > +++ b/drivers/bcmai/b43_pci_ai_bridge.c
    > @@ -0,0 +1,33 @@
    > +/*
    > + * Broadcom 43xx PCI-AI bridge module
    > + *
    > + * Licensed under the GNU/GPL. See COPYING for details.
    > + */
    > +
    > +#include "bcmai_private.h"
    > +
    > +#include <linux/bcmai/bcmai.h>
    > +#include <linux/bcmai/bcmai_regs.h>
    > +#include <linux/pci.h>
    > +
    > +static const struct pci_device_id b43_pci_ai_bridge_tbl[] = {
    > + { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4353) },
    > + { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4727) },
    > + { 0, },
    > +};
    > +MODULE_DEVICE_TABLE(pci, b43_pci_ai_bridge_tbl);
    > +
    > +static struct pci_driver b43_pci_ai_bridge_driver = {
    > + .name = "b43-pci-ai-bridge",
    > + .id_table = b43_pci_ai_bridge_tbl,
    > +};
    > +
    > +int __init b43_pci_ai_bridge_init(void)
    > +{
    > + return bcmai_host_pci_register(&b43_pci_ai_bridge_driver);
    > +}
    > +
    > +void __exit b43_pci_ai_bridge_exit(void)
    > +{
    > + bcmai_host_pci_unregister(&b43_pci_ai_bridge_driver);
    > +}
    > diff --git a/drivers/bcmai/bcmai_private.h
    > b/drivers/bcmai/bcmai_private.h
    > new file mode 100644
    > index 0000000..5712c8b
    > --- /dev/null
    > +++ b/drivers/bcmai/bcmai_private.h
    > @@ -0,0 +1,41 @@
    > +#ifndef LINUX_AI_PRIVATE_H_
    > +#define LINUX_AI_PRIVATE_H_
    > +
    > +#include <linux/bcmai/bcmai.h>
    > +#include <linux/device.h>
    > +#include <linux/list.h>
    > +#include <linux/types.h>
    > +#include <linux/spinlock.h>
    > +#include <linux/pci.h>
    > +#include <linux/mod_devicetable.h>
    > +#include <linux/dma-mapping.h>
    > +#include <linux/types.h>
    > +
    > +#define BCMAI_ADDR_BASE 0x18000000
    > +#define BCMAI_WRAP_BASE 0x18100000
    > +
    > +#define BCMAI_CORE_SIZE 0x1000
    > +
    > +struct bcmai_bus;
    > +
    > +/* main.c */
    > +extern int bcmai_bus_register(struct bcmai_bus *bus);
    > +extern void bcmai_bus_unregister(struct bcmai_bus *bus);
    > +
    > +/* scan.c */
    > +int bcmai_bus_scan(struct bcmai_bus *bus);
    > +
    > +#ifdef CONFIG_BCMAI_HOST_PCI
    > +/* b43_pci_ai_bridge.c */
    > +extern int __init b43_pci_ai_bridge_init(void);
    > +extern void __exit b43_pci_ai_bridge_exit(void);
    > +
    > +/* host_pci.c */
    > +extern int bcmai_host_pci_register(struct pci_driver *driver);
    > +static inline void bcmai_host_pci_unregister(struct pci_driver *driver)
    > +{
    > + pci_unregister_driver(driver);
    > +}
    > +#endif /* CONFIG_BCMAI_HOST_PCI */
    > +
    > +#endif
    > diff --git a/drivers/bcmai/core.c b/drivers/bcmai/core.c
    > new file mode 100644
    > index 0000000..2f5d844
    > --- /dev/null
    > +++ b/drivers/bcmai/core.c
    > @@ -0,0 +1,52 @@
    > +/*
    > + * Broadcom's AI
    > + * Core ops
    > + *
    > + * Licensed under the GNU/GPL. See COPYING for details.
    > + */
    > +
    > +#include "bcmai_private.h"
    > +
    > +#include <linux/bcmai/bcmai.h>
    > +#include <linux/bcmai/bcmai_regs.h>
    > +
    > +bool bcmai_core_is_enabled(struct bcmai_device *core)
    > +{
    > + if ((bcmai_aread32(core, BCMAI_IOCTL) & (BCMAI_IOCTL_CLK |
    > BCMAI_IOCTL_FGC)) != BCMAI_IOCTL_CLK)
    > + return false;
    > + if (bcmai_aread32(core, BCMAI_RESET_CTL) & BCMAI_RESET_CTL_RESET)
    > + return false;
    > + return true;
    > +}
    > +EXPORT_SYMBOL(bcmai_core_is_enabled);
    > +
    > +static void bcmai_core_disable(struct bcmai_device *core, u32 flags)
    > +{
    > + if (bcmai_aread32(core, BCMAI_RESET_CTL) & BCMAI_RESET_CTL_RESET)
    > + return;
    > +
    > + bcmai_awrite32(core, BCMAI_IOCTL, flags);
    > + bcmai_aread32(core, BCMAI_IOCTL);
    > + udelay(10);
    > +
    > + bcmai_awrite32(core, BCMAI_RESET_CTL, BCMAI_RESET_CTL_RESET);
    > + udelay(1);
    > +}
    > +
    > +int bcmai_core_enable(struct bcmai_device *core, u32 flags)
    > +{
    > + bcmai_core_disable(core, flags);
    > +
    > + bcmai_awrite32(core, BCMAI_IOCTL, (BCMAI_IOCTL_CLK |
    > BCMAI_IOCTL_FGC | flags));
    > + bcmai_aread32(core, BCMAI_IOCTL);
    > +
    > + bcmai_awrite32(core, BCMAI_RESET_CTL, 0);
    > + udelay(1);
    > +
    > + bcmai_awrite32(core, BCMAI_IOCTL, (BCMAI_IOCTL_CLK | flags));
    > + bcmai_aread32(core, BCMAI_IOCTL);
    > + udelay(1);
    > +
    > + return 0;
    > +}
    > +EXPORT_SYMBOL(bcmai_core_enable);
    > diff --git a/drivers/bcmai/driver_chipcommon.c
    > b/drivers/bcmai/driver_chipcommon.c
    > new file mode 100644
    > index 0000000..6852cb2
    > --- /dev/null
    > +++ b/drivers/bcmai/driver_chipcommon.c
    > @@ -0,0 +1,87 @@
    > +/*
    > + * Broadcom's AI
    > + * Broadcom ChipCommon core driver
    > + *
    > + * Copyright 2005, Broadcom Corporation
    > + * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
    > + *
    > + * Licensed under the GNU/GPL. See COPYING for details.
    > + */
    > +
    > +#include <linux/bcmai/bcmai.h>
    > +#include <linux/bcmai/bcmai_regs.h>
    > +
    > +static inline u32 bcmai_cc_write32_masked(struct bcmai_drv_cc *cc, u16
    > offset,
    > + u32 mask, u32 value)
    > +{
    > + value &= mask;
    > + value |= bcmai_cc_read32(cc, offset) & ~mask;
    > + bcmai_cc_write32(cc, offset, value);
    > +
    > + return value;
    > +}
    > +
    > +void bcmai_core_chipcommon_init(struct bcmai_drv_cc *cc)
    > +{
    > + if (cc->core->id.rev >= 11)
    > + cc->status = bcmai_cc_read32(cc, BCMAI_CC_CHIPSTAT);
    > + cc->capabilities = bcmai_cc_read32(cc, BCMAI_CC_CAP);
    > + if (cc->core->id.rev >= 35)
    > + cc->capabilities_ext = bcmai_cc_read32(cc,
    > BCMAI_CC_CAP_EXT);
    > +
    > + bcmai_cc_write32(cc, 0x58, 0);
    > + bcmai_cc_write32(cc, 0x5C, 0);
    > +
    > + if (cc->capabilities & BCMAI_CC_CAP_PMU)
    > + bcmai_pmu_init(cc);
    > + if (cc->capabilities & BCMAI_CC_CAP_PCTL)
    > + bcmai_err("Power control not implemented!\n");
    > +}
    > +
    > +/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
    > +void bcmai_chipco_watchdog_timer_set(struct bcmai_drv_cc *cc, u32 ticks)
    > +{
    > + /* instant NMI */
    > + bcmai_cc_write32(cc, BCMAI_CC_WATCHDOG, ticks);
    > +}
    > +
    > +void bcmai_chipco_irq_mask(struct bcmai_drv_cc *cc, u32 mask, u32 value)
    > +{
    > + bcmai_cc_write32_masked(cc, BCMAI_CC_IRQMASK, mask, value);
    > +}
    > +
    > +u32 bcmai_chipco_irq_status(struct bcmai_drv_cc *cc, u32 mask)
    > +{
    > + return bcmai_cc_read32(cc, BCMAI_CC_IRQSTAT) & mask;
    > +}
    > +
    > +u32 bcmai_chipco_gpio_in(struct bcmai_drv_cc *cc, u32 mask)
    > +{
    > + return bcmai_cc_read32(cc, BCMAI_CC_GPIOIN) & mask;
    > +}
    > +
    > +u32 bcmai_chipco_gpio_out(struct bcmai_drv_cc *cc, u32 mask, u32 value)
    > +{
    > + return bcmai_cc_write32_masked(cc, BCMAI_CC_GPIOOUT, mask,
    > value);
    > +}
    > +
    > +u32 bcmai_chipco_gpio_outen(struct bcmai_drv_cc *cc, u32 mask, u32
    > value)
    > +{
    > + return bcmai_cc_write32_masked(cc, BCMAI_CC_GPIOOUTEN, mask,
    > value);
    > +}
    > +
    > +u32 xbcmai_chipco_gpio_control(struct bcmai_drv_cc *cc, u32 mask, u32
    > value)
    > +{
    > + return bcmai_cc_write32_masked(cc, BCMAI_CC_GPIOCTL, mask,
    > value);
    > +}
    > +EXPORT_SYMBOL(xbcmai_chipco_gpio_control);
    > +
    > +u32 bcmai_chipco_gpio_intmask(struct bcmai_drv_cc *cc, u32 mask, u32
    > value)
    > +{
    > + return bcmai_cc_write32_masked(cc, BCMAI_CC_GPIOIRQ, mask,
    > value);
    > +}
    > +
    > +u32 bcmai_chipco_gpio_polarity(struct bcmai_drv_cc *cc, u32 mask, u32
    > value)
    > +{
    > + return bcmai_cc_write32_masked(cc, BCMAI_CC_GPIOPOL, mask,
    > value);
    > +}
    > diff --git a/drivers/bcmai/driver_chipcommon_pmu.c
    > b/drivers/bcmai/driver_chipcommon_pmu.c
    > new file mode 100644
    > index 0000000..0050187
    > --- /dev/null
    > +++ b/drivers/bcmai/driver_chipcommon_pmu.c
    > @@ -0,0 +1,134 @@
    > +/*
    > + * Broadcom's AI
    > + * Broadcom ChipCommon Power Management Unit driver
    > + *
    > + * Copyright 2009, Michael Buesch <mb@bu3sch.de>
    > + * Copyright 2007, Broadcom Corporation
    > + *
    > + * Licensed under the GNU/GPL. See COPYING for details.
    > + */
    > +
    > +#include <linux/bcmai/bcmai.h>
    > +#include <linux/bcmai/bcmai_regs.h>
    > +
    > +static void bcmai_chipco_chipctl_maskset(struct bcmai_drv_cc *cc,
    > + u32 offset, u32 mask, u32 set)
    > +{
    > + u32 value;
    > +
    > + bcmai_cc_read32(cc, BCMAI_CC_CHIPCTL_ADDR);
    > + bcmai_cc_write32(cc, BCMAI_CC_CHIPCTL_ADDR, offset);
    > + bcmai_cc_read32(cc, BCMAI_CC_CHIPCTL_ADDR);
    > + value = bcmai_cc_read32(cc, BCMAI_CC_CHIPCTL_DATA);
    > + value &= mask;
    > + value |= set;
    > + bcmai_cc_write32(cc, BCMAI_CC_CHIPCTL_DATA, value);
    > + bcmai_cc_read32(cc, BCMAI_CC_CHIPCTL_DATA);
    > +}
    > +
    > +static void bcmai_pmu_pll_init(struct bcmai_drv_cc *cc)
    > +{
    > + struct bcmai_bus *bus = cc->core->bus;
    > +
    > + switch (bus->chipinfo.id) {
    > + case 0x4313:
    > + case 0x4331:
    > + case 43224:
    > + case 43225:
    > + break;
    > + default:
    > + bcmai_err("PLL init unknown for device 0x%04X\n",
    > + bus->chipinfo.id);
    > + }
    > +}
    > +
    > +static void bcmai_pmu_resources_init(struct bcmai_drv_cc *cc)
    > +{
    > + struct bcmai_bus *bus = cc->core->bus;
    > + u32 min_msk = 0, max_msk = 0;
    > +
    > + switch (bus->chipinfo.id) {
    > + case 0x4313:
    > + min_msk = 0x200D;
    > + max_msk = 0xFFFF;
    > + break;
    > + case 43224:
    > + break;
    > + default:
    > + bcmai_err("PMU resource config unknown for device
    > 0x%04X\n",
    > + bus->chipinfo.id);
    > + }
    > +
    > + /* Set the resource masks. */
    > + if (min_msk)
    > + bcmai_cc_write32(cc, BCMAI_CC_PMU_MINRES_MSK, min_msk);
    > + if (max_msk)
    > + bcmai_cc_write32(cc, BCMAI_CC_PMU_MAXRES_MSK, max_msk);
    > +}
    > +
    > +void bcmai_pmu_swreg_init(struct bcmai_drv_cc *cc)
    > +{
    > + struct bcmai_bus *bus = cc->core->bus;
    > +
    > + switch (bus->chipinfo.id) {
    > + case 0x4313:
    > + case 0x4331:
    > + case 43224:
    > + break;
    > + default:
    > + bcmai_err("PMU switch/regulators init unknown for device
    > "
    > + "0x%04X\n", bus->chipinfo.id);
    > + }
    > +}
    > +
    > +void bcmai_pmu_workarounds(struct bcmai_drv_cc *cc)
    > +{
    > + struct bcmai_bus *bus = cc->core->bus;
    > +
    > + switch (bus->chipinfo.id) {
    > + case 0x4313:
    > + bcmai_chipco_chipctl_maskset(cc, 0, ~0, 0x7);
    > + break;
    > + case 0x4331:
    > + bcmai_err("Enabling Ext PA lines not implemented\n");
    > + break;
    > + case 43224:
    > + if (bus->chipinfo.rev == 0) {
    > + bcmai_err("Workarounds for 43224 rev 0 not fully
    > "
    > + "implemented\n");
    > + bcmai_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
    > + } else {
    > + bcmai_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
    > + }
    > + break;
    > + default:
    > + bcmai_err("Workarounds unknown for device 0x%04X\n",
    > + bus->chipinfo.id);
    > + }
    > +}
    > +
    > +void bcmai_pmu_init(struct bcmai_drv_cc *cc)
    > +{
    > + u32 pmucap;
    > +
    > + pmucap = bcmai_cc_read32(cc, BCMAI_CC_PMU_CAP);
    > + cc->pmu.rev = (pmucap & BCMAI_CC_PMU_CAP_REVISION);
    > +
    > + bcmai_dbg("Found rev %u PMU (capabilities 0x%08X)\n",
    > cc->pmu.rev,
    > + pmucap);
    > +
    > + if (cc->pmu.rev == 1)
    > + bcmai_cc_mask32(cc, BCMAI_CC_PMU_CTL,
    > + ~BCMAI_CC_PMU_CTL_NOILPONW);
    > + else
    > + bcmai_cc_set32(cc, BCMAI_CC_PMU_CTL,
    > + BCMAI_CC_PMU_CTL_NOILPONW);
    > +
    > + if (cc->core->id.id == 0x4329 && cc->core->id.rev == 2)
    > + bcmai_err("Fix for 4329b0 bad LPOM state not
    > implemented!\n");
    > +
    > + bcmai_pmu_pll_init(cc);
    > + bcmai_pmu_resources_init(cc);
    > + bcmai_pmu_swreg_init(cc);
    > + bcmai_pmu_workarounds(cc);
    > +}
    > diff --git a/drivers/bcmai/driver_pci.c b/drivers/bcmai/driver_pci.c
    > new file mode 100644
    > index 0000000..dca3eb1
    > --- /dev/null
    > +++ b/drivers/bcmai/driver_pci.c
    > @@ -0,0 +1,191 @@
    > +/*
    > + * Broadcom's AI
    > + * PCI Core
    > + *
    > + * Copyright 2005, Broadcom Corporation
    > + * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
    > + *
    > + * Licensed under the GNU/GPL. See COPYING for details.
    > + */
    > +
    > +#include <linux/bcmai/bcmai_driver_pci.h>
    > +#include "bcmai_private.h"
    > +
    > +#include <linux/bcmai/bcmai.h>
    > +#include <linux/pci.h>
    > +#include <linux/delay.h>
    > +
    > +/**************************************************
    > + * R/W ops.
    > + **************************************************/
    > +
    > +static inline
    > +u32 pcicore_read32(struct bcmai_drv_pci *pc, u16 offset)
    > +{
    > + return bcmai_read32(pc->core, offset);
    > +}
    > +
    > +static inline
    > +void pcicore_write32(struct bcmai_drv_pci *pc, u16 offset, u32 value)
    > +{
    > + bcmai_write32(pc->core, offset, value);
    > +}
    > +
    > +static inline
    > +u16 pcicore_read16(struct bcmai_drv_pci *pc, u16 offset)
    > +{
    > + return bcmai_read16(pc->core, offset);
    > +}
    > +
    > +static inline
    > +void pcicore_write16(struct bcmai_drv_pci *pc, u16 offset, u16 value)
    > +{
    > + bcmai_write16(pc->core, offset, value);
    > +}
    > +
    > +static u32 bcmai_pcie_read(struct bcmai_drv_pci *pc, u32 address)
    > +{
    > + pcicore_write32(pc, 0x130, address);
    > + pcicore_read32(pc, 0x130);
    > + return pcicore_read32(pc, 0x134);
    > +}
    > +
    > +#if 0
    > +static void bcmai_pcie_write(struct bcmai_drv_pci *pc, u32 address, u32
    > data)
    > +{
    > + pcicore_write32(pc, 0x130, address);
    > + pcicore_read32(pc, 0x130);
    > + pcicore_write32(pc, 0x134, data);
    > +}
    > +#endif
    > +
    > +static void bcmai_pcie_mdio_set_phy(struct bcmai_drv_pci *pc, u8 phy)
    > +{
    > + const u16 mdio_control = 0x128;
    > + const u16 mdio_data = 0x12C;
    > + u32 v;
    > + int i;
    > +
    > + v = (1 << 30); /* Start of Transaction */
    > + v |= (1 << 28); /* Write Transaction */
    > + v |= (1 << 17); /* Turnaround */
    > + v |= (0x1F << 18);
    > + v |= (phy << 4);
    > + pcicore_write32(pc, mdio_data, v);
    > +
    > + udelay(10);
    > + for (i = 0; i < 200; i++) {
    > + v = pcicore_read32(pc, mdio_control);
    > + if (v & 0x100 /* Trans complete */)
    > + break;
    > + msleep(1);
    > + }
    > +}
    > +
    > +static u16 bcmai_pcie_mdio_read(struct bcmai_drv_pci *pc, u8 device, u8
    > address)
    > +{
    > + const u16 mdio_control = 0x128;
    > + const u16 mdio_data = 0x12C;
    > + int max_retries = 10;
    > + u16 ret = 0;
    > + u32 v;
    > + int i;
    > +
    > + v = 0x80; /* Enable Preamble Sequence */
    > + v |= 0x2; /* MDIO Clock Divisor */
    > + pcicore_write32(pc, mdio_control, v);
    > +
    > + if (pc->core->id.rev >= 10) {
    > + max_retries = 200;
    > + bcmai_pcie_mdio_set_phy(pc, device);
    > + }
    > +
    > + v = (1 << 30); /* Start of Transaction */
    > + v |= (1 << 29); /* Read Transaction */
    > + v |= (1 << 17); /* Turnaround */
    > + if (pc->core->id.rev < 10)
    > + v |= (u32)device << 22;
    > + v |= (u32)address << 18;
    > + pcicore_write32(pc, mdio_data, v);
    > + /* Wait for the device to complete the transaction */
    > + udelay(10);
    > + for (i = 0; i < 200; i++) {
    > + v = pcicore_read32(pc, mdio_control);
    > + if (v & 0x100 /* Trans complete */) {
    > + udelay(10);
    > + ret = pcicore_read32(pc, mdio_data);
    > + break;
    > + }
    > + msleep(1);
    > + }
    > + pcicore_write32(pc, mdio_control, 0);
    > + return ret;
    > +}
    > +
    > +static void bcmai_pcie_mdio_write(struct bcmai_drv_pci *pc, u8 device,
    > + u8 address, u16 data)
    > +{
    > + const u16 mdio_control = 0x128;
    > + const u16 mdio_data = 0x12C;
    > + int max_retries = 10;
    > + u32 v;
    > + int i;
    > +
    > + v = 0x80; /* Enable Preamble Sequence */
    > + v |= 0x2; /* MDIO Clock Divisor */
    > + pcicore_write32(pc, mdio_control, v);
    > +
    > + if (pc->core->id.rev >= 10) {
    > + max_retries = 200;
    > + bcmai_pcie_mdio_set_phy(pc, device);
    > + }
    > +
    > + v = (1 << 30); /* Start of Transaction */
    > + v |= (1 << 28); /* Write Transaction */
    > + v |= (1 << 17); /* Turnaround */
    > + if (pc->core->id.rev < 10)
    > + v |= (u32)device << 22;
    > + v |= (u32)address << 18;
    > + v |= data;
    > + pcicore_write32(pc, mdio_data, v);
    > + /* Wait for the device to complete the transaction */
    > + udelay(10);
    > + for (i = 0; i < max_retries; i++) {
    > + v = pcicore_read32(pc, mdio_control);
    > + if (v & 0x100 /* Trans complete */)
    > + break;
    > + msleep(1);
    > + }
    > + pcicore_write32(pc, mdio_control, 0);
    > +}
    > +
    > +/**************************************************
    > + * Workarounds.
    > + **************************************************/
    > +
    > +static u8 bcmai_pcicore_polarity_workaround(struct bcmai_drv_pci *pc)
    > +{
    > + return (bcmai_pcie_read(pc, 0x204) & 0x10) ? 0xC0 : 0x80;
    > +}
    > +
    > +static void bcmai_pcicore_serdes_workaround(struct bcmai_drv_pci *pc)
    > +{
    > + const u8 serdes_pll_device = 0x1D;
    > + const u8 serdes_rx_device = 0x1F;
    > + u16 tmp;
    > +
    > + bcmai_pcie_mdio_write(pc, serdes_rx_device, 1 /* Control */,
    > + bcmai_pcicore_polarity_workaround(pc));
    > + tmp = bcmai_pcie_mdio_read(pc, serdes_pll_device, 1 /* Control
    > */);
    > + if (tmp & 0x4000)
    > + bcmai_pcie_mdio_write(pc, serdes_pll_device, 1, tmp &
    > ~0x4000);
    > +}
    > +
    > +/**************************************************
    > + * Init.
    > + **************************************************/
    > +
    > +void bcmai_core_pci_init(struct bcmai_drv_pci *pc)
    > +{
    > + bcmai_pcicore_serdes_workaround(pc);
    > +}
    > diff --git a/drivers/bcmai/host_pci.c b/drivers/bcmai/host_pci.c
    > new file mode 100644
    > index 0000000..5659e95
    > --- /dev/null
    > +++ b/drivers/bcmai/host_pci.c
    > @@ -0,0 +1,177 @@
    > +/*
    > + * Broadcom's AI
    > + * PCI Host
    > + *
    > + * Licensed under the GNU/GPL. See COPYING for details.
    > + */
    > +
    > +#include "bcmai_private.h"
    > +
    > +#include <linux/bcmai/bcmai.h>
    > +#include <linux/bcmai/bcmai_regs.h>
    > +
    > +static void bcmai_host_pci_switch_core(struct bcmai_device *core)
    > +{
    > + pci_write_config_dword(core->bus->host_pci, BCMAI_PCI_BAR0_WIN,
    > + core->addr);
    > + pci_write_config_dword(core->bus->host_pci, BCMAI_PCI_BAR0_WIN2,
    > + core->wrap);
    > + core->bus->mapped_core = core;
    > + bcmai_dbg("Switched to core: 0x%X\n", core->id.id);
    > +}
    > +
    > +static u8 bcmai_host_pci_read8(struct bcmai_device *core, u16 offset)
    > +{
    > + if (unlikely(core->bus->mapped_core != core))
    > + bcmai_host_pci_switch_core(core);
    > + return ioread8(core->bus->mmio + offset);
    > +}
    > +
    > +static u16 bcmai_host_pci_read16(struct bcmai_device *core, u16 offset)
    > +{
    > + if (unlikely(core->bus->mapped_core != core))
    > + bcmai_host_pci_switch_core(core);
    > + return ioread16(core->bus->mmio + offset);
    > +}
    > +
    > +static u32 bcmai_host_pci_read32(struct bcmai_device *core, u16 offset)
    > +{
    > + if (unlikely(core->bus->mapped_core != core))
    > + bcmai_host_pci_switch_core(core);
    > + return ioread32(core->bus->mmio + offset);
    > +}
    > +
    > +static void bcmai_host_pci_write8(struct bcmai_device *core, u16
    > offset, u8 value)
    > +{
    > + if (unlikely(core->bus->mapped_core != core))
    > + bcmai_host_pci_switch_core(core);
    > + iowrite8(value, core->bus->mmio + offset);
    > +}
    > +
    > +static void bcmai_host_pci_write16(struct bcmai_device *core, u16
    > offset, u16 value)
    > +{
    > + if (unlikely(core->bus->mapped_core != core))
    > + bcmai_host_pci_switch_core(core);
    > + iowrite16(value, core->bus->mmio + offset);
    > +}
    > +
    > +static void bcmai_host_pci_write32(struct bcmai_device *core, u16
    > offset, u32 value)
    > +{
    > + if (unlikely(core->bus->mapped_core != core))
    > + bcmai_host_pci_switch_core(core);
    > + iowrite32(value, core->bus->mmio + offset);
    > +}
    > +
    > +static u32 bcmai_host_pci_aread32(struct bcmai_device *core, u16 offset)
    > +{
    > + if (unlikely(core->bus->mapped_core != core))
    > + bcmai_host_pci_switch_core(core);
    > + return ioread32(core->bus->mmio + 0x1000 + offset);
    > +}

    Maybe you can replace the 0x1000 with BCMAI_CORE_SIZE (if that was the
    correct define).

    > +static void bcmai_host_pci_awrite32(struct bcmai_device *core, u16
    > offset, u32 value)
    > +{
    > + if (unlikely(core->bus->mapped_core != core))
    > + bcmai_host_pci_switch_core(core);
    > + iowrite32(value, core->bus->mmio + 0x1000 + offset);
    > +}
    > +
    > +const struct bcmai_host_ops bcmai_host_pci_ops = {
    > + .read8 = bcmai_host_pci_read8,
    > + .read16 = bcmai_host_pci_read16,
    > + .read32 = bcmai_host_pci_read32,
    > + .write8 = bcmai_host_pci_write8,
    > + .write16 = bcmai_host_pci_write16,
    > + .write32 = bcmai_host_pci_write32,
    > + .aread32 = bcmai_host_pci_aread32,
    > + .awrite32 = bcmai_host_pci_awrite32,
    > +};
    > +
    > +static int bcmai_host_pci_probe(struct pci_dev *dev,
    > + const struct pci_device_id *id)
    > +{
    > + struct bcmai_bus *bus;
    > + int err = -ENOMEM;
    > + const char *name;
    > + u32 val;
    > +
    > + /* Alloc */
    > + bus = kzalloc(sizeof(*bus), GFP_KERNEL);
    > + if (!bus)
    > + goto out;
    > +
    > + /* Basic PCI configuration */
    > + err = pci_enable_device(dev);
    > + if (err)
    > + goto err_kfree_bus;
    > +
    > + name = dev_name(&dev->dev);
    > + if (dev->driver && dev->driver->name)
    > + name = dev->driver->name;
    > + err = pci_request_regions(dev, name);
    > + if (err)
    > + goto err_pci_disable;
    > + pci_set_master(dev);
    > +
    > + /* Disable the RETRY_TIMEOUT register (0x41) to keep
    > + * PCI Tx retries from interfering with C3 CPU state */
    > + pci_read_config_dword(dev, 0x40, &val);
    > + if ((val & 0x0000ff00) != 0)
    > + pci_write_config_dword(dev, 0x40, val & 0xffff00ff);
    > +
    > + /* SSB needed additional powering up, do we have any AI PCI
    > cards? */
    > + if (!pci_is_pcie(dev))
    > + bcmai_err("PCI card detected, report problems.\n");

    Not that I know off with Broadcom chips. Can ask around here, but I don't
    know about other manufacturers. Not even sure if there are others using
    the AMBA AXI DMP functionality.

    > + /* Map MMIO */
    > + err = -ENOMEM;
    > + bus->mmio = pci_iomap(dev, 0, ~0UL);
    > + if (!bus->mmio)
    > + goto err_pci_release_regions;
    > +
    > + /* Host specific */
    > + bus->host_pci = dev;
    > + bus->hosttype = BCMAI_HOSTTYPE_PCI;
    > + bus->ops = &bcmai_host_pci_ops;
    > +
    > + /* Register */
    > + err = bcmai_bus_register(bus);
    > + if (err)
    > + goto err_pci_unmap_mmio;
    > +
    > + pci_set_drvdata(dev, bus);
    > +
    > +out:
    > + return err;
    > +
    > +err_pci_unmap_mmio:
    > + pci_iounmap(dev, bus->mmio);
    > +err_pci_release_regions:
    > + pci_release_regions(dev);
    > +err_pci_disable:
    > + pci_disable_device(dev);
    > +err_kfree_bus:
    > + kfree(bus);
    > + return err;
    > +}
    > +
    > +static void bcmai_host_pci_remove(struct pci_dev *dev)
    > +{
    > + struct bcmai_bus *bus = pci_get_drvdata(dev)
    > +
    > + bcmai_bus_unregister(bus);
    > + pci_iounmap(dev, bus->mmio);
    > + pci_release_regions(dev);
    > + pci_disable_device(dev);
    > + kfree(bus);
    > + pci_set_drvdata(dev, NULL);
    > +}
    > +
    > +int bcmai_host_pci_register(struct pci_driver *driver)
    > +{
    > + driver->probe = bcmai_host_pci_probe;
    > + driver->remove = bcmai_host_pci_remove;
    > +
    > + return pci_register_driver(driver);
    > +}
    > +EXPORT_SYMBOL(bcmai_host_pci_register);
    > diff --git a/drivers/bcmai/main.c b/drivers/bcmai/main.c
    > new file mode 100644
    > index 0000000..f76ad32
    > --- /dev/null
    > +++ b/drivers/bcmai/main.c
    > @@ -0,0 +1,249 @@
    > +/*
    > + * Broadcom's AI
    > + * Bus subsystem
    > + *
    > + * Licensed under the GNU/GPL. See COPYING for details.
    > + */
    > +
    > +#include "bcmai_private.h"
    > +
    > +#include <linux/bcmai/bcmai.h>
    > +#include <linux/bcmai/bcmai_regs.h>
    > +#include <linux/pci.h>
    > +#include <linux/delay.h>
    > +#include <linux/io.h>
    > +#include <linux/dma-mapping.h>
    > +#include <linux/slab.h>
    > +
    > +MODULE_DESCRIPTION("AI driver");
    > +MODULE_LICENSE("GPL");
    > +
    > +static int bcmai_bus_match(struct device *dev, struct device_driver
    > *drv);
    > +static int bcmai_device_probe(struct device *dev);
    > +static int bcmai_device_remove(struct device *dev);
    > +
    > +static ssize_t manuf_show(struct device *dev, struct device_attribute
    > *attr, char *buf)
    > +{
    > + struct bcmai_device *core = container_of(dev, struct
    > bcmai_device, dev);
    > + return sprintf(buf, "0x%03X", core->id.manuf);
    > +}
    > +static ssize_t id_show(struct device *dev, struct device_attribute
    > *attr, char *buf)
    > +{
    > + struct bcmai_device *core = container_of(dev, struct
    > bcmai_device, dev);
    > + return sprintf(buf, "0x%03X", core->id.id);
    > +}
    > +static ssize_t rev_show(struct device *dev, struct device_attribute
    > *attr, char *buf)
    > +{
    > + struct bcmai_device *core = container_of(dev, struct
    > bcmai_device, dev);
    > + return sprintf(buf, "0x%02X", core->id.rev);
    > +}
    > +static struct device_attribute bcmai_device_attrs[] = {
    > + __ATTR_RO(manuf),
    > + __ATTR_RO(id),
    > + __ATTR_RO(rev),
    > + __ATTR_NULL,
    > +};
    > +
    > +static struct bus_type bcmai_bus_type = {
    > + .name = "bcmai",
    > + .match = bcmai_bus_match,
    > + .probe = bcmai_device_probe,
    > + .remove = bcmai_device_remove,
    > + .dev_attrs = bcmai_device_attrs,
    > +};
    > +
    > +static struct bcmai_device *bcmai_find_core(struct bcmai_bus *bus, u16
    > coreid)
    > +{
    > + u8 i;
    > + for (i = 0; i < bus->nr_cores; i++) {
    > + if (bus->cores[i].id.id == coreid)
    > + return &bus->cores[i];
    > + }
    > + return NULL;
    > +}
    > +
    > +static void bcmai_release_core_dev(struct device *dev)
    > +{
    > + kfree(dev);
    > +}
    > +
    > +static int bcmai_register_cores(struct bcmai_bus *bus)
    > +{
    > + struct bcmai_device *core;
    > + int i, err, dev_id = 0;
    > +
    > + for (i = 0; i < bus->nr_cores; i++) {
    > + core = &(bus->cores[i]);
    > +
    > + /* We support that cores ourself */
    > + switch (core->id.id) {
    > + case BCMAI_CORE_CHIPCOMMON:
    > + case BCMAI_CORE_PCI:
    > + case BCMAI_CORE_PCIE:
    > + continue;
    > + }
    > +
    > + core->dev.release = bcmai_release_core_dev;
    > + core->dev.bus = &bcmai_bus_type;
    > + dev_set_name(&core->dev, "ssbX:%d", /*bus->busnumber,*/
    > dev_id);

    The device name should probably start with something other than 'ssb' ;-)

    > + switch (bus->hosttype) {
    > + case BCMAI_HOSTTYPE_PCI:
    > + core->dev.parent = &bus->host_pci->dev;
    > + break;
    > + case BCMAI_HOSTTYPE_NONE:
    > + case BCMAI_HOSTTYPE_SDIO:
    > + break;
    > + }
    > +
    > + err = device_register(&core->dev);
    > + if (err) {
    > + bcmai_err("Could not register dev for core
    > 0x%03X\n",
    > + core->id.id);
    > + core->dev.release = NULL;
    > + core->dev.bus = NULL;
    > + core->dev.parent = NULL;
    > + continue;
    > + }
    > + dev_id++;
    > + }
    > +
    > + return 0;
    > +}
    > +
    > +static void bcmai_unregister_cores(struct bcmai_bus *bus)
    > +{
    > + struct bcmai_device *core;
    > + int i;
    > +
    > + for (i = 0; i < bus->nr_cores; i++) {
    > + core = &(bus->cores[i]);
    > + if (core->dev.bus)
    > + device_unregister(&core->dev);
    > + }
    > +}
    > +
    > +int bcmai_bus_register(struct bcmai_bus *bus)
    > +{
    > + int err;
    > + struct bcmai_device *core;
    > +
    > + /* Scan for devices (cores) */
    > + err = bcmai_bus_scan(bus);
    > + if (err) {
    > + bcmai_err("Failed to scan: %d\n", err);
    > + return -1;
    > + }
    > +
    > + /* Init CC core */
    > + core = bcmai_find_core(bus, BCMAI_CORE_CHIPCOMMON);
    > + if (core) {
    > + bus->drv_cc.core = core;
    > + bcmai_core_chipcommon_init(&bus->drv_cc);
    > + }
    > +
    > + /* Init PCIE core */
    > + core = bcmai_find_core(bus, BCMAI_CORE_PCIE);
    > + if (core) {
    > + bus->drv_pci.core = core;
    > + bcmai_core_pci_init(&bus->drv_pci);
    > + }
    > +
    > + /* Register found cores */
    > + bcmai_register_cores(bus);
    > +
    > + bcmai_info("Broadcom's AI registered");
    > +
    > + return 0;
    > +}
    > +EXPORT_SYMBOL(bcmai_bus_register);
    > +
    > +void bcmai_bus_unregister(struct bcmai_bus *bus)
    > +{
    > + bcmai_unregister_cores(bus);
    > +}
    > +EXPORT_SYMBOL(bcmai_bus_unregister);
    > +
    > +int __bcmai_driver_register(struct bcmai_driver *drv, struct module
    > *owner)
    > +{
    > + drv->drv.name = drv->name;
    > + drv->drv.bus = &bcmai_bus_type;
    > + drv->drv.owner = owner;
    > +
    > + return driver_register(&drv->drv);
    > +}
    > +EXPORT_SYMBOL(__bcmai_driver_register);
    > +
    > +void bcmai_driver_unregister(struct bcmai_driver *drv)
    > +{
    > + driver_unregister(&drv->drv);
    > +}
    > +EXPORT_SYMBOL(bcmai_driver_unregister);
    > +
    > +static int bcmai_bus_match(struct device *dev, struct device_driver
    > *drv)
    > +{
    > + struct bcmai_device *core = container_of(dev, struct
    > bcmai_device, dev);
    > + struct bcmai_driver *bdrv = container_of(drv, struct
    > bcmai_driver, drv);
    > + const struct bcmai_device_id *id;
    > +
    > + for (id = bdrv->id_table; id->manuf || id->id || id->rev; id++) {
    > + if (core->id.manuf == id->manuf &&
    > + core->id.id == id->id &&
    > + core->id.rev == id->rev)
    > + return 1;
    > + }
    > + return 0;
    > +}
    > +
    > +static int bcmai_device_probe(struct device *dev)
    > +{
    > + struct bcmai_device *core = container_of(dev, struct
    > bcmai_device, dev);
    > + struct bcmai_driver *bdrv = container_of(dev->driver, struct
    > bcmai_driver, drv);
    > + int err = 0;
    > +
    > + if (bdrv->probe)
    > + err = bdrv->probe(core);
    > +
    > + return err;
    > +}
    > +
    > +static int bcmai_device_remove(struct device *dev)
    > +{
    > + struct bcmai_device *core = container_of(dev, struct
    > bcmai_device, dev);
    > + struct bcmai_driver *bdrv = container_of(dev->driver, struct
    > bcmai_driver, drv);
    > +
    > + if (bdrv->remove)
    > + bdrv->remove(core);
    > +
    > + return 0;
    > +}
    > +
    > +static int __init bcmai_modinit(void)
    > +{
    > + int err;
    > +
    > + err = bus_register(&bcmai_bus_type);
    > + if (err)
    > + return err;
    > +
    > +#ifdef CONFIG_BCMAI_HOST_PCI
    > + err = b43_pci_ai_bridge_init();
    > + if (err) {
    > + bcmai_err("Broadcom 43xx PCI-AI-bridge initialization "
    > + "failed\n");
    > + err = 0;
    > + }
    > +#endif
    > +
    > + return err;
    > +}
    > +fs_initcall(bcmai_modinit);
    > +
    > +static void __exit bcmai_modexit(void)
    > +{
    > +#ifdef CONFIG_BCMAI_HOST_PCI
    > + b43_pci_ai_bridge_exit();
    > +#endif
    > + bus_unregister(&bcmai_bus_type);
    > +}
    > +module_exit(bcmai_modexit)
    > diff --git a/drivers/bcmai/scan.c b/drivers/bcmai/scan.c
    > new file mode 100644
    > index 0000000..ca1692e
    > --- /dev/null
    > +++ b/drivers/bcmai/scan.c
    > @@ -0,0 +1,383 @@
    > +/*
    > + * Broadcom's AI
    > + * Bus scanning
    > + *
    > + * Licensed under the GNU/GPL. See COPYING for details.
    > + */
    > +
    > +#include "scan.h"
    > +#include "bcmai_private.h"
    > +#include <linux/bcmai/bcmai_driver_chipcommon.h>
    > +
    > +#include <linux/bcmai/bcmai.h>
    > +#include <linux/bcmai/bcmai_regs.h>
    > +#include <linux/pci.h>
    > +#include <linux/delay.h>
    > +#include <linux/io.h>
    > +#include <linux/dma-mapping.h>
    > +#include <linux/slab.h>
    > +
    > +const char *bcmai_device_name(u16 coreid)
    > +{
    > + switch (coreid) {
    > + case BCMAI_CORE_OOB_ROUTER:
    > + return "OOB Router";
    > + case BCMAI_CORE_INVALID:
    > + return "Invalid";
    > + case BCMAI_CORE_CHIPCOMMON:
    > + return "ChipCommon";
    > + case BCMAI_CORE_ILINE20:
    > + return "ILine 20";
    > + case BCMAI_CORE_SRAM:
    > + return "SRAM";
    > + case BCMAI_CORE_SDRAM:
    > + return "SDRAM";
    > + case BCMAI_CORE_PCI:
    > + return "PCI";
    > + case BCMAI_CORE_MIPS:
    > + return "MIPS";
    > + case BCMAI_CORE_ETHERNET:
    > + return "Fast Ethernet";
    > + case BCMAI_CORE_V90:
    > + return "V90";
    > + case BCMAI_CORE_USB11_HOSTDEV:
    > + return "USB 1.1 Hostdev";
    > + case BCMAI_CORE_ADSL:
    > + return "ADSL";
    > + case BCMAI_CORE_ILINE100:
    > + return "ILine 100";
    > + case BCMAI_CORE_IPSEC:
    > + return "IPSEC";
    > + case BCMAI_CORE_UTOPIA:
    > + return "UTOPIA";
    > + case BCMAI_CORE_PCMCIA:
    > + return "PCMCIA";
    > + case BCMAI_CORE_INTERNAL_MEM:
    > + return "Internal Memory";
    > + case BCMAI_CORE_MEMC_SDRAM:
    > + return "MEMC SDRAM";
    > + case BCMAI_CORE_OFDM:
    > + return "OFDM";
    > + case BCMAI_CORE_EXTIF:
    > + return "EXTIF";
    > + case BCMAI_CORE_80211:
    > + return "IEEE 802.11";
    > + case BCMAI_CORE_PHY_A:
    > + return "PHY A";
    > + case BCMAI_CORE_PHY_B:
    > + return "PHY B";
    > + case BCMAI_CORE_PHY_G:
    > + return "PHY G";
    > + case BCMAI_CORE_MIPS_3302:
    > + return "MIPS 3302";
    > + case BCMAI_CORE_USB11_HOST:
    > + return "USB 1.1 Host";
    > + case BCMAI_CORE_USB11_DEV:
    > + return "USB 1.1 Device";
    > + case BCMAI_CORE_USB20_HOST:
    > + return "USB 2.0 Host";
    > + case BCMAI_CORE_USB20_DEV:
    > + return "USB 2.0 Device";
    > + case BCMAI_CORE_SDIO_HOST:
    > + return "SDIO Host";
    > + case BCMAI_CORE_ROBOSWITCH:
    > + return "Roboswitch";
    > + case BCMAI_CORE_PARA_ATA:
    > + return "PATA";
    > + case BCMAI_CORE_SATA_XORDMA:
    > + return "SATA XOR-DMA";
    > + case BCMAI_CORE_ETHERNET_GBIT:
    > + return "GBit Ethernet";
    > + case BCMAI_CORE_PCIE:
    > + return "PCIe";
    > + case BCMAI_CORE_PHY_N:
    > + return "PHY N";
    > + case BCMAI_CORE_SRAM_CTL:
    > + return "SRAM Controller";
    > + case BCMAI_CORE_MINI_MACPHY:
    > + return "Mini MACPHY";
    > + case BCMAI_CORE_ARM_1176:
    > + return "ARM 1176";
    > + case BCMAI_CORE_ARM_7TDMI:
    > + return "ARM 7TDMI";
    > + case BCMAI_CORE_PHY_LP:
    > + return "PHY LP";
    > + case BCMAI_CORE_PMU:
    > + return "PMU";
    > + case BCMAI_CORE_PHY_SSN:
    > + return "PHY SSN";
    > + case BCMAI_CORE_SDIO_DEV:
    > + return "SDIO Device";
    > + case BCMAI_CORE_ARM_CM3:
    > + return "ARM CM3";
    > + case BCMAI_CORE_PHY_HT:
    > + return "PHY HT";
    > + case BCMAI_CORE_MIPS_74K:
    > + return "MIPS 74K";
    > + case BCMAI_CORE_MAC_GBIT:
    > + return "GBit MAC";
    > + case BCMAI_CORE_DDR12_MEM_CTL:
    > + return "DDR1/DDR2 Memory Controller";
    > + case BCMAI_CORE_PCIE_RC:
    > + return "PCIe Root Complex";
    > + case BCMAI_CORE_OCP_OCP_BRIDGE:
    > + return "OCP to OCP Bridge";
    > + case BCMAI_CORE_SHARED_COMMON:
    > + return "Common Shared";
    > + case BCMAI_CORE_OCP_AHB_BRIDGE:
    > + return "OCP to AHB Bridge";
    > + case BCMAI_CORE_SPI_HOST:
    > + return "SPI Host";
    > + case BCMAI_CORE_I2S:
    > + return "I2S";
    > + case BCMAI_CORE_SDR_DDR1_MEM_CTL:
    > + return "SDR/DDR1 Memory Controller";
    > + case BCMAI_CORE_SHIM:
    > + return "SHIM";
    > + case BCMAI_CORE_DEFAULT:
    > + return "Default";
    > + }
    > + return "UNKNOWN";
    > +}
    > +
    > +static u32 bcmai_scan_read32(struct bcmai_bus *bus, u8 current_coreidx,
    > + u16 offset)
    > +{
    > + return readl(bus->mmio + offset);
    > +}

    I have seen both ioread32() and readl() in this patch. Are these doing the
    same thing?

    > +static void bcmai_scan_switch_core(struct bcmai_bus *bus, u32 addr)
    > +{
    > + if (bus->hosttype == BCMAI_HOSTTYPE_PCI)
    > + pci_write_config_dword(bus->host_pci, BCMAI_PCI_BAR0_WIN,
    > + addr);
    > +}
    > +
    > +static u32 bcmai_erom_get_ent(struct bcmai_bus *bus, u32 **eromptr)
    > +{
    > + u32 ent = readl(*eromptr);
    > + (*eromptr)++;
    > + return ent;
    > +}
    > +
    > +static void bcmai_erom_push_ent(u32 **eromptr)
    > +{
    > + (*eromptr)--;
    > +}
    > +
    > +static s32 bcmai_erom_get_ci(struct bcmai_bus *bus, u32 **eromptr)
    > +{
    > + u32 ent = bcmai_erom_get_ent(bus, eromptr);
    > + if (!(ent & SCAN_ER_VALID))
    > + return -1;
    > + if ((ent & SCAN_ER_TAG) != SCAN_ER_TAG_CI)
    > + return -2;
    > + return ent;
    > +}
    > +
    > +static bool bcmai_erom_is_end(struct bcmai_bus *bus, u32 **eromptr)
    > +{
    > + u32 ent = bcmai_erom_get_ent(bus, eromptr);
    > + bcmai_erom_push_ent(eromptr);
    > + return (ent == (SCAN_ER_TAG_END | SCAN_ER_VALID));
    > +}
    > +
    > +static bool bcmai_erom_is_bridge(struct bcmai_bus *bus, u32 **eromptr)
    > +{
    > + u32 ent = bcmai_erom_get_ent(bus, eromptr);
    > + bcmai_erom_push_ent(eromptr);
    > + return (((ent & SCAN_ER_VALID)) &&
    > + ((ent & SCAN_ER_TAGX) == SCAN_ER_TAG_ADDR) &&
    > + ((ent & SCAN_ADDR_TYPE) == SCAN_ADDR_TYPE_BRIDGE));
    > +}
    > +
    > +static void bcmai_erom_skip_component(struct bcmai_bus *bus, u32
    > **eromptr)
    > +{
    > + u32 ent;
    > + while (1) {
    > + ent = bcmai_erom_get_ent(bus, eromptr);
    > + if ((ent & SCAN_ER_VALID) && ((ent & SCAN_ER_TAG) ==
    > SCAN_ER_TAG_CI))
    > + break;
    > + if (ent == (SCAN_ER_TAG_END | SCAN_ER_VALID))
    > + break;
    > + }
    > + bcmai_erom_push_ent(eromptr);
    > +}
    > +
    > +static s32 bcmai_erom_get_mst_port(struct bcmai_bus *bus, u32 **eromptr)
    > +{
    > + u32 ent = bcmai_erom_get_ent(bus, eromptr);
    > + if (!(ent & SCAN_ER_VALID))
    > + return -1;
    > + if ((ent & SCAN_ER_TAG) != SCAN_ER_TAG_MP)
    > + return -2;
    > + return ent;
    > +}
    > +
    > +static s32 bcmai_erom_get_addr_desc(struct bcmai_bus *bus, u32
    > **eromptr, u32 type, u8 port)
    > +{
    > + u32 addrl, addrh, sizel, sizeh = 0;
    > + u32 size;
    > +
    > + u32 ent = bcmai_erom_get_ent(bus, eromptr);
    > + if ((!(ent & SCAN_ER_VALID)) ||
    > + ((ent & SCAN_ER_TAGX) != SCAN_ER_TAG_ADDR) ||
    > + ((ent & SCAN_ADDR_TYPE) != type) ||
    > + (((ent & SCAN_ADDR_PORT) >> SCAN_ADDR_PORT_SHIFT) != port)) {
    > + bcmai_erom_push_ent(eromptr);
    > + return -1;
    > + }
    > +
    > + addrl = ent & SCAN_ADDR_ADDR;
    > + if (ent & SCAN_ADDR_AG32)
    > + addrh = bcmai_erom_get_ent(bus, eromptr);
    > + else
    > + addrh = 0;
    > +
    > + if ((ent & SCAN_ADDR_SZ) == SCAN_ADDR_SZ_SZD) {
    > + size = bcmai_erom_get_ent(bus, eromptr);
    > + sizel = size & SCAN_SIZE_SZ;
    > + if (size & SCAN_SIZE_SG32)
    > + sizeh = bcmai_erom_get_ent(bus, eromptr);
    > + } else
    > + sizel = SCAN_ADDR_SZ_BASE << ((ent & SCAN_ADDR_SZ) >>
    > SCAN_ADDR_SZ_SHIFT);
    > +
    > + return addrl;
    > +}
    > +
    > +int bcmai_bus_scan(struct bcmai_bus *bus)
    > +{
    > + u32 erombase;
    > + u32 __iomem *eromptr, *eromend;
    > +
    > + s32 cia, cib;
    > + u8 ports[2], wrappers[2];
    > +
    > + s32 tmp;
    > + u8 i, j;
    > +
    > + bus->nr_cores = 0;
    > +
    > + bcmai_scan_switch_core(bus, BCMAI_ADDR_BASE);

    Is BCMAI_ADDR_BASE used in other source file in this module? Otherwise, it
    could be defined in this source file only instead of in a header file.

    > + tmp = bcmai_scan_read32(bus, 0, BCMAI_CC_ID);
    > + bus->chipinfo.id = (tmp & BCMAI_CC_ID_ID) >>
    > BCMAI_CC_ID_ID_SHIFT;
    > + bus->chipinfo.rev = (tmp & BCMAI_CC_ID_REV) >>
    > BCMAI_CC_ID_REV_SHIFT;
    > + bus->chipinfo.pkg = (tmp & BCMAI_CC_ID_PKG) >>
    > BCMAI_CC_ID_PKG_SHIFT;
    > +
    > + erombase = bcmai_scan_read32(bus, 0, BCMAI_CC_EROM);
    > + eromptr = bus->mmio;
    > + eromend = eromptr + BCMAI_CORE_SIZE / sizeof(u32);
    > +
    > + bcmai_scan_switch_core(bus, erombase);
    > +
    > + while (eromptr < eromend) {
    > + struct bcmai_device core;
    > + core.bus = bus;
    > +
    > + /* get CIs */
    > + cia = bcmai_erom_get_ci(bus, &eromptr);
    > + if (cia < 0) {
    > + bcmai_erom_push_ent(&eromptr);
    > + if (bcmai_erom_is_end(bus, &eromptr))
    > + break;
    > + return -1;
    > + }
    > + cib = bcmai_erom_get_ci(bus, &eromptr);
    > + if (cib < 0)
    > + return -2;
    > +
    > + /* parse CIs */
    > + core.id.id = (cia & SCAN_CIA_ID) >> SCAN_CIA_ID_SHIFT;
    > + core.id.manuf = (cia & SCAN_CIA_MANUF) >>
    > SCAN_CIA_MANUF_SHIFT;

    You can also get the component class here. Next 4 bits in cia.

    > + ports[0] = (cib & SCAN_CIB_NMP) >> SCAN_CIB_NMP_SHIFT;
    > + ports[1] = (cib & SCAN_CIB_NSP) >> SCAN_CIB_NSP_SHIFT;
    > + wrappers[0] = (cib & SCAN_CIB_NMW) >> SCAN_CIB_NMW_SHIFT;
    > + wrappers[1] = (cib & SCAN_CIB_NSW) >> SCAN_CIB_NSW_SHIFT;
    > + core.id.rev = (cib & SCAN_CIB_REV) >> SCAN_CIB_REV_SHIFT;
    > +
    > + if (((core.id.manuf == BCMAI_MANUF_ARM) &&
    > + (core.id.id == 0xFFF)) ||
    > + (ports[1] == 0)) {
    > + bcmai_erom_skip_component(bus, &eromptr);
    > + continue;
    > + }
    > +
    > + /* check if component is a core at all */
    > + if (wrappers[0] + wrappers[1] == 0) {
    > + /* we could save addrl of the router
    > + if (cid == BCMAI_CORE_OOB_ROUTER)
    > + */
    > + bcmai_erom_skip_component(bus, &eromptr);
    > + continue;
    > + }
    > +
    > + if (bcmai_erom_is_bridge(bus, &eromptr)) {
    > + bcmai_erom_skip_component(bus, &eromptr);
    > + continue;
    > + }
    > +
    > + /* get & parse master ports */
    > + for (i = 0; i < ports[0]; i++) {
    > + u32 mst_port_d = bcmai_erom_get_mst_port(bus,
    > &eromptr);
    > + if (mst_port_d < 0)
    > + return -3;
    > + }
    > +
    > + /* get & parse slave ports */
    > + for (i = 0; i < ports[1]; i++) {
    > + for (j = 0; ; j++) {
    > + tmp = bcmai_erom_get_addr_desc(bus,
    > &eromptr, SCAN_ADDR_TYPE_SLAVE, i);
    > + if (tmp < 0) {
    > + /* there are not more entries
    > for port _i_ */
    > + //bcmai_dbg("erom: slave port %d
    > has %d descriptors\n", i, j);
    > + break;
    > + } else {
    > + if (i == 0 && j == 0)
    > + core.addr = tmp;
    > + }
    > + }
    > + }
    > +
    > + /* get & parse master wrappers */
    > + for (i = 0; i < wrappers[0]; i++) {
    > + for (j = 0; ; j++) {
    > + tmp = bcmai_erom_get_addr_desc(bus,
    > &eromptr, SCAN_ADDR_TYPE_MWRAP, i);
    > + if (tmp < 0) {
    > + /* there are not more entries
    > for port _i_ */
    > + //bcmai_dbg("erom: master
    > wrapper %d has %d descriptors\n", i, j);
    > + break;
    > + } else {
    > + if (i == 0 && j == 0)
    > + core.wrap = tmp;
    > + }
    > + }
    > + }
    > +
    > + /* get & parse slave wrappers */
    > + for (i = 0; i < wrappers[1]; i++) {
    > + u8 hack = (ports[1] == 1) ? 0 : 1;
    > + for (j = 0; ; j++) {
    > + tmp = bcmai_erom_get_addr_desc(bus,
    > &eromptr, SCAN_ADDR_TYPE_SWRAP, i + hack);
    > + if (tmp < 0) {
    > + /* there are not more entries
    > for port _i_ */
    > + //bcmai_dbg("erom: master
    > wrapper %d has %d descriptors\n", i, j);
    > + break;
    > + } else {
    > + if (wrappers[0] == 0 && i == 0
    > && j == 0)
    > + core.wrap = tmp;
    > + }
    > + }
    > + }
    > +
    > + bcmai_info("Core %d found: %s "
    > + "(manuf 0x%03X, id 0x%03X, rev 0x%02X)\n",
    > + bus->nr_cores, bcmai_device_name(core.id.id),
    > + core.id.manuf, core.id.id, core.id.rev);
    > +
    > + core.core_index = bus->nr_cores;
    > + bus->cores[bus->nr_cores++] = core;
    > + }
    > +
    > + return 0;
    > +}
    > diff --git a/drivers/bcmai/scan.h b/drivers/bcmai/scan.h
    > new file mode 100644
    > index 0000000..d970184
    > --- /dev/null
    > +++ b/drivers/bcmai/scan.h
    > @@ -0,0 +1,53 @@
    > +#ifndef BCMAI_SCAN_H_
    > +#define BCMAI_SCAN_H_
    > +
    > +#define SCAN_ER_VALID 0x00000001
    > +#define SCAN_ER_TAGX 0x00000006 /* we have to ignore 0x8 bit
    > when checking tag for SCAN_ER_TAG_ADDR */
    > +#define SCAN_ER_TAG 0x0000000E
    > +#define SCAN_ER_TAG_CI 0x00000000
    > +#define SCAN_ER_TAG_MP 0x00000002
    > +#define SCAN_ER_TAG_ADDR 0x00000004
    > +#define SCAN_ER_TAG_END 0x0000000E
    > +#define SCAN_ER_BAD 0xFFFFFFFF
    > +
    > +#define SCAN_CIA_CCL 0x000000F0
    > +#define SCAN_CIA_CCL_SHIFT 4
    > +#define SCAN_CIA_ID 0x000FFF00
    > +#define SCAN_CIA_ID_SHIFT 8
    > +#define SCAN_CIA_MANUF 0xFFF00000
    > +#define SCAN_CIA_MANUF_SHIFT 20
    > +
    > +#define SCAN_CIB_NMP 0x000001F0
    > +#define SCAN_CIB_NMP_SHIFT 4
    > +#define SCAN_CIB_NSP 0x00003E00
    > +#define SCAN_CIB_NSP_SHIFT 9
    > +#define SCAN_CIB_NMW 0x0007C000
    > +#define SCAN_CIB_NMW_SHIFT 14
    > +#define SCAN_CIB_NSW 0x00F80000
    > +#define SCAN_CIB_NSW_SHIFT 17
    > +#define SCAN_CIB_REV 0xFF000000
    > +#define SCAN_CIB_REV_SHIFT 24
    > +
    > +#define SCAN_ADDR_AG32 0x00000008
    > +#define SCAN_ADDR_SZ 0x00000030
    > +#define SCAN_ADDR_SZ_SHIFT 4
    > +#define SCAN_ADDR_SZ_4K 0x00000000
    > +#define SCAN_ADDR_SZ_8K 0x00000010
    > +#define SCAN_ADDR_SZ_16K 0x00000020
    > +#define SCAN_ADDR_SZ_SZD 0x00000030
    > +#define SCAN_ADDR_TYPE 0x000000C0
    > +#define SCAN_ADDR_TYPE_SLAVE 0x00000000
    > +#define SCAN_ADDR_TYPE_BRIDGE 0x00000040
    > +#define SCAN_ADDR_TYPE_SWRAP 0x00000080
    > +#define SCAN_ADDR_TYPE_MWRAP 0x000000C0
    > +#define SCAN_ADDR_PORT 0x00000F00
    > +#define SCAN_ADDR_PORT_SHIFT 8
    > +#define SCAN_ADDR_ADDR 0xFFFFF000
    > +
    > +#define SCAN_ADDR_SZ_BASE 0x00001000 /* 4KB */
    > +
    > +#define SCAN_SIZE_SZ_ALIGN 0x00000FFF
    > +#define SCAN_SIZE_SZ 0xFFFFF000
    > +#define SCAN_SIZE_SG32 0x00000008
    > +
    > +#endif /* BCMAI_SCAN_H_ */
    > diff --git a/include/linux/bcmai/bcmai.h b/include/linux/bcmai/bcmai.h
    > new file mode 100644
    > index 0000000..1d5d33c
    > --- /dev/null
    > +++ b/include/linux/bcmai/bcmai.h
    > @@ -0,0 +1,210 @@
    > +#ifndef LINUX_BCMAI_H_
    > +#define LINUX_BCMAI_H_
    > +
    > +#include <linux/types.h>
    > +#include <linux/bcmai/bcmai_driver_chipcommon.h>
    > +#include <linux/bcmai/bcmai_driver_pci.h>
    > +
    > +#define bcmai_info(fmt, args...) printk(KERN_INFO "bcmai: " fmt,
    > ##args)
    > +#ifdef CONFIG_BCMAI_DEBUG
    > +#define bcmai_dbg(fmt, args...) printk(KERN_DEBUG "bcmai
    > debug: " fmt, ##args)
    > +#else
    > +#define bcmai_dbg(fmt, args...) do { } while (0)
    > +#endif
    > +#define bcmai_err(fmt, args...) printk(KERN_ERR "bcmai
    > error: " fmt, ##args)
    > +

    Would go for the pr_... functions. I used that in brcmaxi.

    > +#include <linux/device.h>
    > +#include <linux/list.h>
    > +#include <linux/types.h>
    > +#include <linux/spinlock.h>
    > +#include <linux/pci.h>
    > +#include <linux/mod_devicetable.h>
    > +#include <linux/dma-mapping.h>
    > +
    > +#include "bcmai_regs.h"
    > +
    > +struct bcmai_device;
    > +struct bcmai_bus;
    > +
    > +enum bcmai_hosttype {
    > + BCMAI_HOSTTYPE_NONE,
    > + BCMAI_HOSTTYPE_PCI,
    > + BCMAI_HOSTTYPE_SDIO,
    > +};
    > +
    > +struct bcmai_chipinfo {
    > + u16 id;
    > + u8 rev;
    > + u8 pkg;
    > +};
    > +
    > +struct bcmai_host_ops {
    > + u8 (*read8)(struct bcmai_device *core, u16 offset);
    > + u16 (*read16)(struct bcmai_device *core, u16 offset);
    > + u32 (*read32)(struct bcmai_device *core, u16 offset);
    > + void (*write8)(struct bcmai_device *core, u16 offset, u8 value);
    > + void (*write16)(struct bcmai_device *core, u16 offset, u16
    > value);
    > + void (*write32)(struct bcmai_device *core, u16 offset, u32
    > value);
    > + /* Agent ops */
    > + u32 (*aread32)(struct bcmai_device *core, u16 offset);
    > + void (*awrite32)(struct bcmai_device *core, u16 offset, u32
    > value);
    > +};
    > +
    > +#define BCMAI_MANUF_ARM 0x43B
    > +#define BCMAI_MANUF_MIPS 0x4A7
    > +#define BCMAI_MANUF_BCM 0x4BF
    > +
    > +/* Core-ID values. */
    > +#define BCMAI_CORE_OOB_ROUTER 0x367 /* Out of band */
    > +#define BCMAI_CORE_INVALID 0x700
    > +#define BCMAI_CORE_CHIPCOMMON 0x800
    > +#define BCMAI_CORE_ILINE20 0x801
    > +#define BCMAI_CORE_SRAM 0x802
    > +#define BCMAI_CORE_SDRAM 0x803
    > +#define BCMAI_CORE_PCI 0x804
    > +#define BCMAI_CORE_MIPS 0x805
    > +#define BCMAI_CORE_ETHERNET 0x806
    > +#define BCMAI_CORE_V90 0x807
    > +#define BCMAI_CORE_USB11_HOSTDEV 0x808
    > +#define BCMAI_CORE_ADSL 0x809
    > +#define BCMAI_CORE_ILINE100 0x80A
    > +#define BCMAI_CORE_IPSEC 0x80B
    > +#define BCMAI_CORE_UTOPIA 0x80C
    > +#define BCMAI_CORE_PCMCIA 0x80D
    > +#define BCMAI_CORE_INTERNAL_MEM 0x80E
    > +#define BCMAI_CORE_MEMC_SDRAM 0x80F
    > +#define BCMAI_CORE_OFDM 0x810
    > +#define BCMAI_CORE_EXTIF 0x811
    > +#define BCMAI_CORE_80211 0x812
    > +#define BCMAI_CORE_PHY_A 0x813
    > +#define BCMAI_CORE_PHY_B 0x814
    > +#define BCMAI_CORE_PHY_G 0x815
    > +#define BCMAI_CORE_MIPS_3302 0x816
    > +#define BCMAI_CORE_USB11_HOST 0x817
    > +#define BCMAI_CORE_USB11_DEV 0x818
    > +#define BCMAI_CORE_USB20_HOST 0x819
    > +#define BCMAI_CORE_USB20_DEV 0x81A
    > +#define BCMAI_CORE_SDIO_HOST 0x81B
    > +#define BCMAI_CORE_ROBOSWITCH 0x81C
    > +#define BCMAI_CORE_PARA_ATA 0x81D
    > +#define BCMAI_CORE_SATA_XORDMA 0x81E
    > +#define BCMAI_CORE_ETHERNET_GBIT 0x81F
    > +#define BCMAI_CORE_PCIE 0x820
    > +#define BCMAI_CORE_PHY_N 0x821
    > +#define BCMAI_CORE_SRAM_CTL 0x822
    > +#define BCMAI_CORE_MINI_MACPHY 0x823
    > +#define BCMAI_CORE_ARM_1176 0x824
    > +#define BCMAI_CORE_ARM_7TDMI 0x825
    > +#define BCMAI_CORE_PHY_LP 0x826
    > +#define BCMAI_CORE_PMU 0x827
    > +#define BCMAI_CORE_PHY_SSN 0x828
    > +#define BCMAI_CORE_SDIO_DEV 0x829
    > +#define BCMAI_CORE_ARM_CM3 0x82A
    > +#define BCMAI_CORE_PHY_HT 0x82B
    > +#define BCMAI_CORE_MIPS_74K 0x82C
    > +#define BCMAI_CORE_MAC_GBIT 0x82D
    > +#define BCMAI_CORE_DDR12_MEM_CTL 0x82E
    > +#define BCMAI_CORE_PCIE_RC 0x82F /* PCIe Root Complex */
    > +#define BCMAI_CORE_OCP_OCP_BRIDGE 0x830
    > +#define BCMAI_CORE_SHARED_COMMON 0x831
    > +#define BCMAI_CORE_OCP_AHB_BRIDGE 0x832
    > +#define BCMAI_CORE_SPI_HOST 0x833
    > +#define BCMAI_CORE_I2S 0x834
    > +#define BCMAI_CORE_SDR_DDR1_MEM_CTL 0x835 /* SDR/DDR1 memory
    > controller core */
    > +#define BCMAI_CORE_SHIM 0x837 /* SHIM
    > component in ubus/6362 */
    > +#define BCMAI_CORE_DEFAULT 0xFFF

    Probably this list includes some cores that were in old chips, but will
    never show up in bcmai chips.

    > +#define BCMAI_MAX_NR_CORES 16
    > +
    > +struct bcmai_device {
    > + struct device dev;
    > +
    > + struct bcmai_bus *bus;
    > + struct bcmai_device_id id;
    > +
    > + u8 core_index;
    > +
    > + u32 addr;
    > + u32 wrap;
    > +};
    > +
    > +struct bcmai_driver {
    > + const char *name;
    > + const struct bcmai_device_id *id_table;
    > +
    > + int (*probe)(struct bcmai_device *dev);
    > + void (*remove)(struct bcmai_device *dev);
    > + int (*suspend)(struct bcmai_device *dev, pm_message_t state);
    > + int (*resume)(struct bcmai_device *dev);
    > + void (*shutdown)(struct bcmai_device *dev);
    > +
    > + struct device_driver drv;
    > +};
    > +extern int __bcmai_driver_register(struct bcmai_driver *drv, struct
    > module *owner);
    > +static inline int bcmai_driver_register(struct bcmai_driver *drv)
    > +{
    > + return __bcmai_driver_register(drv, THIS_MODULE);
    > +}
    > +extern void bcmai_driver_unregister(struct bcmai_driver *drv);
    > +
    > +struct bcmai_bus {
    > + /* The MMIO area. */
    > + void __iomem *mmio;
    > +
    > + const struct bcmai_host_ops *ops;
    > +
    > + enum bcmai_hosttype hosttype;
    > + union {
    > + /* Pointer to the PCI bus (only for BCMAI_HOSTTYPE_PCI)
    > */
    > + struct pci_dev *host_pci;
    > + /* Pointer to the SDIO device (only for
    > BCMAI_HOSTTYPE_SDIO) */
    > + struct sdio_func *host_sdio;
    > + };
    > +
    > + struct bcmai_chipinfo chipinfo;
    > +
    > + struct bcmai_device *mapped_core;
    > + struct bcmai_device cores[BCMAI_MAX_NR_CORES];
    > + u8 nr_cores;
    > +
    > + struct bcmai_drv_cc drv_cc;
    > + struct bcmai_drv_pci drv_pci;
    > +};
    > +
    > +extern inline u32 bcmai_read8(struct bcmai_device *core, u16 offset)
    > +{
    > + return core->bus->ops->read8(core, offset);
    > +}
    > +extern inline u32 bcmai_read16(struct bcmai_device *core, u16 offset)
    > +{
    > + return core->bus->ops->read16(core, offset);
    > +}
    > +extern inline u32 bcmai_read32(struct bcmai_device *core, u16 offset)
    > +{
    > + return core->bus->ops->read32(core, offset);
    > +}
    > +extern inline void bcmai_write8(struct bcmai_device *core, u16 offset,
    > u32 value)
    > +{
    > + core->bus->ops->write8(core, offset, value);
    > +}
    > +extern inline void bcmai_write16(struct bcmai_device *core, u16 offset,
    > u32 value)
    > +{
    > + core->bus->ops->write16(core, offset, value);
    > +}
    > +extern inline void bcmai_write32(struct bcmai_device *core, u16 offset,
    > u32 value)
    > +{
    > + core->bus->ops->write32(core, offset, value);
    > +}
    > +extern inline u32 bcmai_aread32(struct bcmai_device *core, u16 offset)
    > +{
    > + return core->bus->ops->aread32(core, offset);
    > +}
    > +extern inline void bcmai_awrite32(struct bcmai_device *core, u16
    > offset, u32 value)
    > +{
    > + core->bus->ops->awrite32(core, offset, value);
    > +}
    > +
    > +extern bool bcmai_core_is_enabled(struct bcmai_device *core);
    > +extern int bcmai_core_enable(struct bcmai_device *core, u32 flags);
    > +
    > +#endif /* LINUX_BCMAI_H_ */
    > diff --git a/include/linux/bcmai/bcmai_driver_chipcommon.h
    > b/include/linux/bcmai/bcmai_driver_chipcommon.h
    > new file mode 100644
    > index 0000000..2704fa1
    > --- /dev/null
    > +++ b/include/linux/bcmai/bcmai_driver_chipcommon.h
    > @@ -0,0 +1,644 @@
    > +#ifndef LINUX_BCMAI_DRIVER_CC_H_
    > +#define LINUX_BCMAI_DRIVER_CC_H_
    > +
    > +/* SonicsSiliconBackplane CHIPCOMMON core hardware definitions
    > + *
    > + * The chipcommon core provides chip identification, SB control,
    > + * jtag, 0/1/2 uarts, clock frequency control, a watchdog interrupt
    > timer,
    > + * gpio interface, extbus, and support for serial and parallel flashes.
    > + *
    > + * Copyright 2005, Broadcom Corporation
    > + * Copyright 2006, Michael Buesch <mb@bu3sch.de>
    > + *
    > + * Licensed under the GPL version 2. See COPYING for details.
    > + */
    > +
    > +/** ChipCommon core registers. **/
    > +
    > +#define BCMAI_CC_ID 0x0000
    > +#define BCMAI_CC_ID_ID 0x0000FFFF
    > +#define BCMAI_CC_ID_ID_SHIFT 0
    > +#define BCMAI_CC_ID_REV 0x000F0000
    > +#define BCMAI_CC_ID_REV_SHIFT 16
    > +#define BCMAI_CC_ID_PKG 0x00F00000
    > +#define BCMAI_CC_ID_PKG_SHIFT 20
    > +#define BCMAI_CC_ID_NRCORES 0x0F000000
    > +#define BCMAI_CC_ID_NRCORES_SHIFT 24
    > +#define BCMAI_CC_ID_TYPE 0xF0000000
    > +#define BCMAI_CC_ID_TYPE_SHIFT 28
    > +#define BCMAI_CC_CAP 0x0004 /* Capabilities
    > */
    > +#define BCMAI_CC_CAP_NRUART 0x00000003 /* # of UARTs */
    > +#define BCMAI_CC_CAP_MIPSEB 0x00000004 /* MIPS in
    > BigEndian Mode */
    > +#define BCMAI_CC_CAP_UARTCLK 0x00000018 /* UART clock
    > select */
    > +#define BCMAI_CC_CAP_UARTCLK_INT 0x00000008 /* UARTs are
    > driven by internal divided clock */
    > +#define BCMAI_CC_CAP_UARTGPIO 0x00000020 /* UARTs on GPIO
    > 15-12 */
    > +#define BCMAI_CC_CAP_EXTBUS 0x000000C0 /* External
    > buses present */
    > +#define BCMAI_CC_CAP_FLASHT 0x00000700 /* Flash Type */
    > +#define BCMAI_CC_FLASHT_NONE 0x00000000 /* No flash */
    > +#define BCMAI_CC_FLASHT_STSER 0x00000100 /* ST
    > serial flash */
    > +#define BCMAI_CC_FLASHT_ATSER 0x00000200 /* Atmel
    > serial flash */
    > +#define BCMAI_CC_FLASHT_PARA 0x00000700 /*
    > Parallel flash */
    > +#define BCMAI_CC_CAP_PLLT 0x00038000 /* PLL Type */
    > +#define SSB_PLLTYPE_NONE 0x00000000
    > +#define SSB_PLLTYPE_1 0x00010000 /* 48Mhz
    > base, 3 dividers */
    > +#define SSB_PLLTYPE_2 0x00020000 /*
    > 48Mhz, 4 dividers */
    > +#define SSB_PLLTYPE_3 0x00030000 /*
    > 25Mhz, 2 dividers */
    > +#define SSB_PLLTYPE_4 0x00008000 /*
    > 48Mhz, 4 dividers */
    > +#define SSB_PLLTYPE_5 0x00018000 /*
    > 25Mhz, 4 dividers */
    > +#define SSB_PLLTYPE_6 0x00028000 /*
    > 100/200 or 120/240 only */
    > +#define SSB_PLLTYPE_7 0x00038000 /*
    > 25Mhz, 4 dividers */

    Here and below there are quite some definitions still starting with SSB.

    > +#define BCMAI_CC_CAP_PCTL 0x00040000 /* Power Control
    > */
    > +#define BCMAI_CC_CAP_OTPS 0x00380000 /* OTP size */
    > +#define BCMAI_CC_CAP_OTPS_SHIFT 19
    > +#define BCMAI_CC_CAP_OTPS_BASE 5
    > +#define BCMAI_CC_CAP_JTAGM 0x00400000 /* JTAG master
    > present */
    > +#define BCMAI_CC_CAP_BROM 0x00800000 /* Internal boot
    > ROM active */
    > +#define BCMAI_CC_CAP_64BIT 0x08000000 /* 64-bit
    > Backplane */
    > +#define BCMAI_CC_CAP_PMU 0x10000000 /* PMU available
    > (rev >= 20) */
    > +#define BCMAI_CC_CAP_ECI 0x20000000 /* ECI available
    > (rev >= 20) */
    > +#define BCMAI_CC_CAP_SPROM 0x40000000 /* SPROM present
    > */
    > +#define BCMAI_CC_CORECTL 0x0008
    > +#define BCMAI_CC_CORECTL_UARTCLK0 0x00000001 /* Drive UART
    > with internal clock */
    > +#define BCMAI_CC_CORECTL_SE 0x00000002 /* sync
    > clk out enable (corerev >= 3) */
    > +#define BCMAI_CC_CORECTL_UARTCLKEN 0x00000008 /* UART clock
    > enable (rev >= 21) */
    > +#define BCMAI_CC_BIST 0x000C
    > +#define BCMAI_CC_OTPS 0x0010 /* OTP status */
    > +#define BCMAI_CC_OTPS_PROGFAIL 0x80000000
    > +#define BCMAI_CC_OTPS_PROTECT 0x00000007
    > +#define BCMAI_CC_OTPS_HW_PROTECT 0x00000001
    > +#define BCMAI_CC_OTPS_SW_PROTECT 0x00000002
    > +#define BCMAI_CC_OTPS_CID_PROTECT 0x00000004
    > +#define BCMAI_CC_OTPC 0x0014 /* OTP control */
    > +#define BCMAI_CC_OTPC_RECWAIT 0xFF000000
    > +#define BCMAI_CC_OTPC_PROGWAIT 0x00FFFF00
    > +#define BCMAI_CC_OTPC_PRW_SHIFT 8
    > +#define BCMAI_CC_OTPC_MAXFAIL 0x00000038
    > +#define BCMAI_CC_OTPC_VSEL 0x00000006
    > +#define BCMAI_CC_OTPC_SELVL 0x00000001
    > +#define BCMAI_CC_OTPP 0x0018 /* OTP prog */
    > +#define BCMAI_CC_OTPP_COL 0x000000FF
    > +#define BCMAI_CC_OTPP_ROW 0x0000FF00
    > +#define BCMAI_CC_OTPP_ROW_SHIFT 8
    > +#define BCMAI_CC_OTPP_READERR 0x10000000
    > +#define BCMAI_CC_OTPP_VALUE 0x20000000
    > +#define BCMAI_CC_OTPP_READ 0x40000000
    > +#define BCMAI_CC_OTPP_START 0x80000000
    > +#define BCMAI_CC_OTPP_BUSY 0x80000000
    > +#define BCMAI_CC_IRQSTAT 0x0020
    > +#define BCMAI_CC_IRQMASK 0x0024
    > +#define BCMAI_CC_IRQ_GPIO 0x00000001 /* gpio
    > intr */
    > +#define BCMAI_CC_IRQ_EXT 0x00000002 /* ro:
    > ext intr pin (corerev >= 3) */
    > +#define BCMAI_CC_IRQ_WDRESET 0x80000000 /*
    > watchdog reset occurred */
    > +#define BCMAI_CC_CHIPCTL 0x0028 /* Rev >= 11
    > only */
    > +#define BCMAI_CC_CHIPSTAT 0x002C /* Rev >= 11
    > only */
    > +#define BCMAI_CC_JCMD 0x0030 /* Rev >= 10
    > only */
    > +#define BCMAI_CC_JCMD_START 0x80000000
    > +#define BCMAI_CC_JCMD_BUSY 0x80000000
    > +#define BCMAI_CC_JCMD_PAUSE 0x40000000
    > +#define BCMAI_CC_JCMD0_ACC_MASK 0x0000F000
    > +#define BCMAI_CC_JCMD0_ACC_IRDR 0x00000000
    > +#define BCMAI_CC_JCMD0_ACC_DR 0x00001000
    > +#define BCMAI_CC_JCMD0_ACC_IR 0x00002000
    > +#define BCMAI_CC_JCMD0_ACC_RESET 0x00003000
    > +#define BCMAI_CC_JCMD0_ACC_IRPDR 0x00004000
    > +#define BCMAI_CC_JCMD0_ACC_PDR 0x00005000
    > +#define BCMAI_CC_JCMD0_IRW_MASK 0x00000F00
    > +#define BCMAI_CC_JCMD_ACC_MASK 0x000F0000 /*
    > Changes for corerev 11 */
    > +#define BCMAI_CC_JCMD_ACC_IRDR 0x00000000
    > +#define BCMAI_CC_JCMD_ACC_DR 0x00010000
    > +#define BCMAI_CC_JCMD_ACC_IR 0x00020000
    > +#define BCMAI_CC_JCMD_ACC_RESET 0x00030000
    > +#define BCMAI_CC_JCMD_ACC_IRPDR 0x00040000
    > +#define BCMAI_CC_JCMD_ACC_PDR 0x00050000
    > +#define BCMAI_CC_JCMD_IRW_MASK 0x00001F00
    > +#define BCMAI_CC_JCMD_IRW_SHIFT 8
    > +#define BCMAI_CC_JCMD_DRW_MASK 0x0000003F
    > +#define BCMAI_CC_JIR 0x0034 /* Rev >= 10
    > only */
    > +#define BCMAI_CC_JDR 0x0038 /* Rev >= 10
    > only */
    > +#define BCMAI_CC_JCTL 0x003C /* Rev >= 10
    > only */
    > +#define BCMAI_CC_JCTL_FORCE_CLK 4 /* Force clock */
    > +#define BCMAI_CC_JCTL_EXT_EN 2 /* Enable
    > external targets */
    > +#define BCMAI_CC_JCTL_EN 1 /* Enable Jtag
    > master */
    > +#define BCMAI_CC_FLASHCTL 0x0040
    > +#define BCMAI_CC_FLASHCTL_START 0x80000000
    > +#define BCMAI_CC_FLASHCTL_BUSY BCMAI_CC_FLASHCTL_START
    > +#define BCMAI_CC_FLASHADDR 0x0044
    > +#define BCMAI_CC_FLASHDATA 0x0048
    > +#define BCMAI_CC_BCAST_ADDR 0x0050
    > +#define BCMAI_CC_BCAST_DATA 0x0054
    > +#define BCMAI_CC_GPIOIN 0x0060
    > +#define BCMAI_CC_GPIOOUT 0x0064
    > +#define BCMAI_CC_GPIOOUTEN 0x0068
    > +#define BCMAI_CC_GPIOCTL 0x006C
    > +#define BCMAI_CC_GPIOPOL 0x0070
    > +#define BCMAI_CC_GPIOIRQ 0x0074
    > +#define BCMAI_CC_WATCHDOG 0x0080
    > +#define BCMAI_CC_GPIOTIMER 0x0088 /* LED powersave
    > (corerev >= 16) */
    > +#define BCMAI_CC_GPIOTIMER_ONTIME_SHIFT 16
    > +#define BCMAI_CC_GPIOTOUTM 0x008C /* LED powersave
    > (corerev >= 16) */
    > +#define BCMAI_CC_CLOCK_N 0x0090
    > +#define BCMAI_CC_CLOCK_SB 0x0094
    > +#define BCMAI_CC_CLOCK_PCI 0x0098
    > +#define BCMAI_CC_CLOCK_M2 0x009C
    > +#define BCMAI_CC_CLOCK_MIPS 0x00A0
    > +#define BCMAI_CC_CLKDIV 0x00A4 /* Rev
    > >= 3 only */
    > +#define BCMAI_CC_CLKDIV_SFLASH 0x0F000000
    > +#define BCMAI_CC_CLKDIV_SFLASH_SHIFT 24
    > +#define BCMAI_CC_CLKDIV_OTP 0x000F0000
    > +#define BCMAI_CC_CLKDIV_OTP_SHIFT 16
    > +#define BCMAI_CC_CLKDIV_JTAG 0x00000F00
    > +#define BCMAI_CC_CLKDIV_JTAG_SHIFT 8
    > +#define BCMAI_CC_CLKDIV_UART 0x000000FF
    > +#define BCMAI_CC_CAP_EXT 0x00AC /* Capabilities
    > */
    > +#define BCMAI_CC_PLLONDELAY 0x00B0 /* Rev >= 4 only
    > */
    > +#define BCMAI_CC_FREFSELDELAY 0x00B4 /* Rev >= 4 only
    > */
    > +#define BCMAI_CC_SLOWCLKCTL 0x00B8 /* 6 <= Rev <= 9
    > only */
    > +#define BCMAI_CC_SLOWCLKCTL_SRC 0x00000007 /* slow clock
    > source mask */
    > +#define BCMAI_CC_SLOWCLKCTL_SRC_LPO 0x00000000 /*
    > source of slow clock is LPO */
    > +#define BCMAI_CC_SLOWCLKCTL_SRC_XTAL 0x00000001 /* source of
    > slow clock is crystal */
    > +#define BCMAI_CC_SLOECLKCTL_SRC_PCI 0x00000002 /*
    > source of slow clock is PCI */
    > +#define BCMAI_CC_SLOWCLKCTL_LPOFREQ 0x00000200 /* LPOFreqSel,
    > 1: 160Khz, 0: 32KHz */
    > +#define BCMAI_CC_SLOWCLKCTL_LPOPD 0x00000400 /* LPOPowerDown,
    > 1: LPO is disabled, 0: LPO is enabled */
    > +#define BCMAI_CC_SLOWCLKCTL_FSLOW 0x00000800 /* ForceSlowClk,
    > 1: sb/cores running on slow clock, 0: power logic control */
    > +#define BCMAI_CC_SLOWCLKCTL_IPLL 0x00001000 /*
    > IgnorePllOffReq, 1/0: power logic ignores/honors PLL clock disable
    > requests from core */
    > +#define BCMAI_CC_SLOWCLKCTL_ENXTAL 0x00002000 /*
    > XtalControlEn, 1/0: power logic does/doesn't disable crystal when
    > appropriate */
    > +#define BCMAI_CC_SLOWCLKCTL_XTALPU 0x00004000 /* XtalPU (RO),
    > 1/0: crystal running/disabled */
    > +#define BCMAI_CC_SLOWCLKCTL_CLKDIV 0xFFFF0000 /* ClockDivider
    > (SlowClk = 1/(4+divisor)) */
    > +#define BCMAI_CC_SLOWCLKCTL_CLKDIV_SHIFT 16
    > +#define BCMAI_CC_SYSCLKCTL 0x00C0 /* Rev >= 3 only
    > */
    > +#define BCMAI_CC_SYSCLKCTL_IDLPEN 0x00000001 /*
    > ILPen: Enable Idle Low Power */
    > +#define BCMAI_CC_SYSCLKCTL_ALPEN 0x00000002 /*
    > ALPen: Enable Active Low Power */
    > +#define BCMAI_CC_SYSCLKCTL_PLLEN 0x00000004 /*
    > ForcePLLOn */
    > +#define BCMAI_CC_SYSCLKCTL_FORCEALP 0x00000008 /* Force
    > ALP (or HT if ALPen is not set */
    > +#define BCMAI_CC_SYSCLKCTL_FORCEHT 0x00000010 /* Force
    > HT */
    > +#define BCMAI_CC_SYSCLKCTL_CLKDIV 0xFFFF0000 /* ClkDiv (ILP
    > = 1/(4+divisor)) */
    > +#define BCMAI_CC_SYSCLKCTL_CLKDIV_SHIFT 16
    > +#define BCMAI_CC_CLKSTSTR 0x00C4 /* Rev >= 3 only
    > */
    > +#define BCMAI_CC_EROM 0x00FC
    > +#define BCMAI_CC_PCMCIA_CFG 0x0100
    > +#define BCMAI_CC_PCMCIA_MEMWAIT 0x0104
    > +#define BCMAI_CC_PCMCIA_ATTRWAIT 0x0108
    > +#define BCMAI_CC_PCMCIA_IOWAIT 0x010C
    > +#define BCMAI_CC_IDE_CFG 0x0110
    > +#define BCMAI_CC_IDE_MEMWAIT 0x0114
    > +#define BCMAI_CC_IDE_ATTRWAIT 0x0118
    > +#define BCMAI_CC_IDE_IOWAIT 0x011C
    > +#define BCMAI_CC_PROG_CFG 0x0120
    > +#define BCMAI_CC_PROG_WAITCNT 0x0124
    > +#define BCMAI_CC_FLASH_CFG 0x0128
    > +#define BCMAI_CC_FLASH_WAITCNT 0x012C
    > +#define BCMAI_CC_CLKCTLST 0x01E0 /* Clock control and
    > status (rev >= 20) */
    > +#define BCMAI_CC_CLKCTLST_FORCEALP 0x00000001 /* Force ALP request
    > */
    > +#define BCMAI_CC_CLKCTLST_FORCEHT 0x00000002 /* Force HT request */
    > +#define BCMAI_CC_CLKCTLST_FORCEILP 0x00000004 /* Force ILP request
    > */
    > +#define BCMAI_CC_CLKCTLST_HAVEALPREQ 0x00000008 /* ALP available
    > request */
    > +#define BCMAI_CC_CLKCTLST_HAVEHTREQ 0x00000010 /* HT available
    > request */
    > +#define BCMAI_CC_CLKCTLST_HWCROFF 0x00000020 /* Force HW clock
    > request off */
    > +#define BCMAI_CC_CLKCTLST_HAVEHT 0x00010000 /* HT available */
    > +#define BCMAI_CC_CLKCTLST_HAVEALP 0x00020000 /* APL available */
    > +#define BCMAI_CC_HW_WORKAROUND 0x01E4 /* Hardware workaround
    > (rev >= 20) */
    > +#define BCMAI_CC_UART0_DATA 0x0300
    > +#define BCMAI_CC_UART0_IMR 0x0304
    > +#define BCMAI_CC_UART0_FCR 0x0308
    > +#define BCMAI_CC_UART0_LCR 0x030C
    > +#define BCMAI_CC_UART0_MCR 0x0310
    > +#define BCMAI_CC_UART0_LSR 0x0314
    > +#define BCMAI_CC_UART0_MSR 0x0318
    > +#define BCMAI_CC_UART0_SCRATCH 0x031C
    > +#define BCMAI_CC_UART1_DATA 0x0400
    > +#define BCMAI_CC_UART1_IMR 0x0404
    > +#define BCMAI_CC_UART1_FCR 0x0408
    > +#define BCMAI_CC_UART1_LCR 0x040C
    > +#define BCMAI_CC_UART1_MCR 0x0410
    > +#define BCMAI_CC_UART1_LSR 0x0414
    > +#define BCMAI_CC_UART1_MSR 0x0418
    > +#define BCMAI_CC_UART1_SCRATCH 0x041C
    > +/* PMU registers (rev >= 20) */
    > +#define BCMAI_CC_PMU_CTL 0x0600 /* PMU control */
    > +#define BCMAI_CC_PMU_CTL_ILP_DIV 0xFFFF0000 /* ILP div
    > mask */
    > +#define BCMAI_CC_PMU_CTL_ILP_DIV_SHIFT 16
    > +#define BCMAI_CC_PMU_CTL_NOILPONW 0x00000200 /* No ILP on
    > wait */
    > +#define BCMAI_CC_PMU_CTL_HTREQEN 0x00000100 /* HT req
    > enable */
    > +#define BCMAI_CC_PMU_CTL_ALPREQEN 0x00000080 /* ALP req
    > enable */
    > +#define BCMAI_CC_PMU_CTL_XTALFREQ 0x0000007C /* Crystal
    > freq */
    > +#define BCMAI_CC_PMU_CTL_XTALFREQ_SHIFT 2
    > +#define BCMAI_CC_PMU_CTL_ILPDIVEN 0x00000002 /* ILP div
    > enable */
    > +#define BCMAI_CC_PMU_CTL_LPOSEL 0x00000001 /* LPO sel */
    > +#define BCMAI_CC_PMU_CAP 0x0604 /* PMU
    > capabilities */
    > +#define BCMAI_CC_PMU_CAP_REVISION 0x000000FF /* Revision
    > mask */
    > +#define BCMAI_CC_PMU_STAT 0x0608 /* PMU status */
    > +#define BCMAI_CC_PMU_STAT_INTPEND 0x00000040 /* Interrupt
    > pending */
    > +#define BCMAI_CC_PMU_STAT_SBCLKST 0x00000030 /* Backplane
    > clock status? */
    > +#define BCMAI_CC_PMU_STAT_HAVEALP 0x00000008 /* ALP
    > available */
    > +#define BCMAI_CC_PMU_STAT_HAVEHT 0x00000004 /* HT
    > available */
    > +#define BCMAI_CC_PMU_STAT_RESINIT 0x00000003 /* Res init */
    > +#define BCMAI_CC_PMU_RES_STAT 0x060C /* PMU res status
    > */
    > +#define BCMAI_CC_PMU_RES_PEND 0x0610 /* PMU res
    > pending */
    > +#define BCMAI_CC_PMU_TIMER 0x0614 /* PMU timer */
    > +#define BCMAI_CC_PMU_MINRES_MSK 0x0618 /* PMU
    > min res mask */
    > +#define BCMAI_CC_PMU_MAXRES_MSK 0x061C /* PMU
    > max res mask */
    > +#define BCMAI_CC_PMU_RES_TABSEL 0x0620 /* PMU
    > res table sel */
    > +#define BCMAI_CC_PMU_RES_DEPMSK 0x0624 /* PMU
    > res dep mask */
    > +#define BCMAI_CC_PMU_RES_UPDNTM 0x0628 /* PMU
    > res updown timer */
    > +#define BCMAI_CC_PMU_RES_TIMER 0x062C /* PMU res timer
    > */
    > +#define BCMAI_CC_PMU_CLKSTRETCH 0x0630 /* PMU
    > clockstretch */
    > +#define BCMAI_CC_PMU_WATCHDOG 0x0634 /* PMU watchdog */
    > +#define BCMAI_CC_PMU_RES_REQTS 0x0640 /* PMU res req
    > timer sel */
    > +#define BCMAI_CC_PMU_RES_REQT 0x0644 /* PMU res req
    > timer */
    > +#define BCMAI_CC_PMU_RES_REQM 0x0648 /* PMU res req
    > mask */
    > +#define BCMAI_CC_CHIPCTL_ADDR 0x0650
    > +#define BCMAI_CC_CHIPCTL_DATA 0x0654
    > +#define BCMAI_CC_REGCTL_ADDR 0x0658
    > +#define BCMAI_CC_REGCTL_DATA 0x065C
    > +#define BCMAI_CC_PLLCTL_ADDR 0x0660
    > +#define BCMAI_CC_PLLCTL_DATA 0x0664
    > +
    > +
    > +
    > +/** PMU PLL registers */
    > +
    > +/* PMU rev 0 PLL registers */
    > +#define SSB_PMU0_PLLCTL0 0
    > +#define SSB_PMU0_PLLCTL0_PDIV_MSK 0x00000001
    > +#define SSB_PMU0_PLLCTL0_PDIV_FREQ 25000 /* kHz */
    > +#define SSB_PMU0_PLLCTL1 1
    > +#define SSB_PMU0_PLLCTL1_WILD_IMSK 0xF0000000 /* Wild int
    > mask (low nibble) */
    > +#define SSB_PMU0_PLLCTL1_WILD_IMSK_SHIFT 28
    > +#define SSB_PMU0_PLLCTL1_WILD_FMSK 0x0FFFFF00 /* Wild frac
    > mask */
    > +#define SSB_PMU0_PLLCTL1_WILD_FMSK_SHIFT 8
    > +#define SSB_PMU0_PLLCTL1_STOPMOD 0x00000040 /* Stop mod */
    > +#define SSB_PMU0_PLLCTL2 2
    > +#define SSB_PMU0_PLLCTL2_WILD_IMSKHI 0x0000000F /* Wild int
    > mask (high nibble) */
    > +#define SSB_PMU0_PLLCTL2_WILD_IMSKHI_SHIFT 0
    > +
    > +/* PMU rev 1 PLL registers */
    > +#define SSB_PMU1_PLLCTL0 0
    > +#define SSB_PMU1_PLLCTL0_P1DIV 0x00F00000 /* P1
    > div */
    > +#define SSB_PMU1_PLLCTL0_P1DIV_SHIFT 20
    > +#define SSB_PMU1_PLLCTL0_P2DIV 0x0F000000 /* P2
    > div */
    > +#define SSB_PMU1_PLLCTL0_P2DIV_SHIFT 24
    > +#define SSB_PMU1_PLLCTL1 1
    > +#define SSB_PMU1_PLLCTL1_M1DIV 0x000000FF /* M1
    > div */
    > +#define SSB_PMU1_PLLCTL1_M1DIV_SHIFT 0
    > +#define SSB_PMU1_PLLCTL1_M2DIV 0x0000FF00 /* M2
    > div */
    > +#define SSB_PMU1_PLLCTL1_M2DIV_SHIFT 8
    > +#define SSB_PMU1_PLLCTL1_M3DIV 0x00FF0000 /* M3
    > div */
    > +#define SSB_PMU1_PLLCTL1_M3DIV_SHIFT 16
    > +#define SSB_PMU1_PLLCTL1_M4DIV 0xFF000000 /* M4
    > div */
    > +#define SSB_PMU1_PLLCTL1_M4DIV_SHIFT 24
    > +#define SSB_PMU1_PLLCTL2 2
    > +#define SSB_PMU1_PLLCTL2_M5DIV 0x000000FF /* M5
    > div */
    > +#define SSB_PMU1_PLLCTL2_M5DIV_SHIFT 0
    > +#define SSB_PMU1_PLLCTL2_M6DIV 0x0000FF00 /* M6
    > div */
    > +#define SSB_PMU1_PLLCTL2_M6DIV_SHIFT 8
    > +#define SSB_PMU1_PLLCTL2_NDIVMODE 0x000E0000 /* NDIV mode
    > */
    > +#define SSB_PMU1_PLLCTL2_NDIVMODE_SHIFT 17
    > +#define SSB_PMU1_PLLCTL2_NDIVINT 0x1FF00000 /* NDIV int */
    > +#define SSB_PMU1_PLLCTL2_NDIVINT_SHIFT 20
    > +#define SSB_PMU1_PLLCTL3 3
    > +#define SSB_PMU1_PLLCTL3_NDIVFRAC 0x00FFFFFF /* NDIV frac
    > */
    > +#define SSB_PMU1_PLLCTL3_NDIVFRAC_SHIFT 0
    > +#define SSB_PMU1_PLLCTL4 4
    > +#define SSB_PMU1_PLLCTL5 5
    > +#define SSB_PMU1_PLLCTL5_CLKDRV 0xFFFFFF00 /* clk drv */
    > +#define SSB_PMU1_PLLCTL5_CLKDRV_SHIFT 8
    > +
    > +/* BCM4312 PLL resource numbers. */
    > +#define SSB_PMURES_4312_SWITCHER_BURST 0
    > +#define SSB_PMURES_4312_SWITCHER_PWM 1
    > +#define SSB_PMURES_4312_PA_REF_LDO 2
    > +#define SSB_PMURES_4312_CORE_LDO_BURST 3
    > +#define SSB_PMURES_4312_CORE_LDO_PWM 4
    > +#define SSB_PMURES_4312_RADIO_LDO 5
    > +#define SSB_PMURES_4312_ILP_REQUEST 6
    > +#define SSB_PMURES_4312_BG_FILTBYP 7
    > +#define SSB_PMURES_4312_TX_FILTBYP 8
    > +#define SSB_PMURES_4312_RX_FILTBYP 9
    > +#define SSB_PMURES_4312_XTAL_PU 10
    > +#define SSB_PMURES_4312_ALP_AVAIL 11
    > +#define SSB_PMURES_4312_BB_PLL_FILTBYP 12
    > +#define SSB_PMURES_4312_RF_PLL_FILTBYP 13
    > +#define SSB_PMURES_4312_HT_AVAIL 14
    > +
    > +/* BCM4325 PLL resource numbers. */
    > +#define SSB_PMURES_4325_BUCK_BOOST_BURST 0
    > +#define SSB_PMURES_4325_CBUCK_BURST 1
    > +#define SSB_PMURES_4325_CBUCK_PWM 2
    > +#define SSB_PMURES_4325_CLDO_CBUCK_BURST 3
    > +#define SSB_PMURES_4325_CLDO_CBUCK_PWM 4
    > +#define SSB_PMURES_4325_BUCK_BOOST_PWM 5
    > +#define SSB_PMURES_4325_ILP_REQUEST 6
    > +#define SSB_PMURES_4325_ABUCK_BURST 7
    > +#define SSB_PMURES_4325_ABUCK_PWM 8
    > +#define SSB_PMURES_4325_LNLDO1_PU 9
    > +#define SSB_PMURES_4325_LNLDO2_PU 10
    > +#define SSB_PMURES_4325_LNLDO3_PU 11
    > +#define SSB_PMURES_4325_LNLDO4_PU 12
    > +#define SSB_PMURES_4325_XTAL_PU 13
    > +#define SSB_PMURES_4325_ALP_AVAIL 14
    > +#define SSB_PMURES_4325_RX_PWRSW_PU 15
    > +#define SSB_PMURES_4325_TX_PWRSW_PU 16
    > +#define SSB_PMURES_4325_RFPLL_PWRSW_PU 17
    > +#define SSB_PMURES_4325_LOGEN_PWRSW_PU 18
    > +#define SSB_PMURES_4325_AFE_PWRSW_PU 19
    > +#define SSB_PMURES_4325_BBPLL_PWRSW_PU 20
    > +#define SSB_PMURES_4325_HT_AVAIL 21
    > +
    > +/* BCM4328 PLL resource numbers. */
    > +#define SSB_PMURES_4328_EXT_SWITCHER_PWM 0
    > +#define SSB_PMURES_4328_BB_SWITCHER_PWM 1
    > +#define SSB_PMURES_4328_BB_SWITCHER_BURST 2
    > +#define SSB_PMURES_4328_BB_EXT_SWITCHER_BURST 3
    > +#define SSB_PMURES_4328_ILP_REQUEST 4
    > +#define SSB_PMURES_4328_RADIO_SWITCHER_PWM 5
    > +#define SSB_PMURES_4328_RADIO_SWITCHER_BURST 6
    > +#define SSB_PMURES_4328_ROM_SWITCH 7
    > +#define SSB_PMURES_4328_PA_REF_LDO 8
    > +#define SSB_PMURES_4328_RADIO_LDO 9
    > +#define SSB_PMURES_4328_AFE_LDO 10
    > +#define SSB_PMURES_4328_PLL_LDO 11
    > +#define SSB_PMURES_4328_BG_FILTBYP 12
    > +#define SSB_PMURES_4328_TX_FILTBYP 13
    > +#define SSB_PMURES_4328_RX_FILTBYP 14
    > +#define SSB_PMURES_4328_XTAL_PU 15
    > +#define SSB_PMURES_4328_XTAL_EN 16
    > +#define SSB_PMURES_4328_BB_PLL_FILTBYP 17
    > +#define SSB_PMURES_4328_RF_PLL_FILTBYP 18
    > +#define SSB_PMURES_4328_BB_PLL_PU 19
    > +
    > +/* BCM5354 PLL resource numbers. */
    > +#define SSB_PMURES_5354_EXT_SWITCHER_PWM 0
    > +#define SSB_PMURES_5354_BB_SWITCHER_PWM 1
    > +#define SSB_PMURES_5354_BB_SWITCHER_BURST 2
    > +#define SSB_PMURES_5354_BB_EXT_SWITCHER_BURST 3
    > +#define SSB_PMURES_5354_ILP_REQUEST 4
    > +#define SSB_PMURES_5354_RADIO_SWITCHER_PWM 5
    > +#define SSB_PMURES_5354_RADIO_SWITCHER_BURST 6
    > +#define SSB_PMURES_5354_ROM_SWITCH 7
    > +#define SSB_PMURES_5354_PA_REF_LDO 8
    > +#define SSB_PMURES_5354_RADIO_LDO 9
    > +#define SSB_PMURES_5354_AFE_LDO 10
    > +#define SSB_PMURES_5354_PLL_LDO 11
    > +#define SSB_PMURES_5354_BG_FILTBYP 12
    > +#define SSB_PMURES_5354_TX_FILTBYP 13
    > +#define SSB_PMURES_5354_RX_FILTBYP 14
    > +#define SSB_PMURES_5354_XTAL_PU 15
    > +#define SSB_PMURES_5354_XTAL_EN 16
    > +#define SSB_PMURES_5354_BB_PLL_FILTBYP 17
    > +#define SSB_PMURES_5354_RF_PLL_FILTBYP 18
    > +#define SSB_PMURES_5354_BB_PLL_PU 19
    > +
    > +
    > +
    > +/** Chip specific Chip-Status register contents. */
    > +#define BCMAI_CC_CHST_4322_SPROM_EXISTS 0x00000040 /*
    > SPROM present */
    > +#define BCMAI_CC_CHST_4325_SPROM_OTP_SEL 0x00000003
    > +#define BCMAI_CC_CHST_4325_DEFCIS_SEL 0 /* OTP is powered up,
    > use def. CIS, no SPROM */
    > +#define BCMAI_CC_CHST_4325_SPROM_SEL 1 /* OTP is powered up,
    > SPROM is present */
    > +#define BCMAI_CC_CHST_4325_OTP_SEL 2 /* OTP is powered up,
    > no SPROM */
    > +#define BCMAI_CC_CHST_4325_OTP_PWRDN 3 /* OTP is powered
    > down, SPROM is present */
    > +#define BCMAI_CC_CHST_4325_SDIO_USB_MODE 0x00000004
    > +#define BCMAI_CC_CHST_4325_SDIO_USB_MODE_SHIFT 2
    > +#define BCMAI_CC_CHST_4325_RCAL_VALID 0x00000008
    > +#define BCMAI_CC_CHST_4325_RCAL_VALID_SHIFT 3
    > +#define BCMAI_CC_CHST_4325_RCAL_VALUE 0x000001F0
    > +#define BCMAI_CC_CHST_4325_RCAL_VALUE_SHIFT 4
    > +#define BCMAI_CC_CHST_4325_PMUTOP_2B 0x00000200 /* 1 for 2b,
    > 0 for to 2a */
    > +
    > +/** Macros to determine SPROM presence based on Chip-Status register. */
    > +#define BCMAI_CC_CHST_4312_SPROM_PRESENT(status) \
    > + ((status & BCMAI_CC_CHST_4325_SPROM_OTP_SEL) != \
    > + BCMAI_CC_CHST_4325_OTP_SEL)
    > +#define BCMAI_CC_CHST_4322_SPROM_PRESENT(status) \
    > + (status & BCMAI_CC_CHST_4322_SPROM_EXISTS)
    > +#define BCMAI_CC_CHST_4325_SPROM_PRESENT(status) \
    > + (((status & BCMAI_CC_CHST_4325_SPROM_OTP_SEL) != \
    > + BCMAI_CC_CHST_4325_DEFCIS_SEL) && \
    > + ((status & BCMAI_CC_CHST_4325_SPROM_OTP_SEL) != \
    > + BCMAI_CC_CHST_4325_OTP_SEL))
    > +
    > +
    > +
    > +/** Clockcontrol masks and values **/
    > +
    > +/* BCMAI_CC_CLOCK_N */
    > +#define BCMAI_CC_CLK_N1 0x0000003F /* n1
    > control */
    > +#define BCMAI_CC_CLK_N2 0x00003F00 /* n2
    > control */
    > +#define BCMAI_CC_CLK_N2_SHIFT 8
    > +#define BCMAI_CC_CLK_PLLC 0x000F0000 /* pll
    > control */
    > +#define BCMAI_CC_CLK_PLLC_SHIFT 16
    > +
    > +/* BCMAI_CC_CLOCK_SB/PCI/UART */
    > +#define BCMAI_CC_CLK_M1 0x0000003F /* m1
    > control */
    > +#define BCMAI_CC_CLK_M2 0x00003F00 /* m2
    > control */
    > +#define BCMAI_CC_CLK_M2_SHIFT 8
    > +#define BCMAI_CC_CLK_M3 0x003F0000 /* m3
    > control */
    > +#define BCMAI_CC_CLK_M3_SHIFT 16
    > +#define BCMAI_CC_CLK_MC 0x1F000000 /* mux
    > control */
    > +#define BCMAI_CC_CLK_MC_SHIFT 24
    > +
    > +/* N3M Clock control magic field values */
    > +#define BCMAI_CC_CLK_F6_2 0x02 /* A
    > factor of 2 in */
    > +#define BCMAI_CC_CLK_F6_3 0x03 /* 6-bit
    > fields like */
    > +#define BCMAI_CC_CLK_F6_4 0x05 /* N1,
    > M1 or M3 */
    > +#define BCMAI_CC_CLK_F6_5 0x09
    > +#define BCMAI_CC_CLK_F6_6 0x11
    > +#define BCMAI_CC_CLK_F6_7 0x21
    > +
    > +#define BCMAI_CC_CLK_F5_BIAS 5 /* 5-bit
    > fields get this added */
    > +
    > +#define BCMAI_CC_CLK_MC_BYPASS 0x08
    > +#define BCMAI_CC_CLK_MC_M1 0x04
    > +#define BCMAI_CC_CLK_MC_M1M2 0x02
    > +#define BCMAI_CC_CLK_MC_M1M2M3 0x01
    > +#define BCMAI_CC_CLK_MC_M1M3 0x11
    > +
    > +/* Type 2 Clock control magic field values */
    > +#define BCMAI_CC_CLK_T2_BIAS 2 /* n1,
    > n2, m1 & m3 bias */
    > +#define BCMAI_CC_CLK_T2M2_BIAS 3 /* m2
    > bias */
    > +
    > +#define BCMAI_CC_CLK_T2MC_M1BYP 1
    > +#define BCMAI_CC_CLK_T2MC_M2BYP 2
    > +#define BCMAI_CC_CLK_T2MC_M3BYP 4
    > +
    > +/* Type 6 Clock control magic field values */
    > +#define BCMAI_CC_CLK_T6_MMASK 1 /* bits
    > of interest in m */
    > +#define BCMAI_CC_CLK_T6_M0 120000000 /* sb
    > clock for m = 0 */
    > +#define BCMAI_CC_CLK_T6_M1 100000000 /* sb
    > clock for m = 1 */
    > +#define BCMAI_CC_CLK_SB2MIPS_T6(sb) (2 * (sb))
    > +
    > +/* Common clock base */
    > +#define BCMAI_CC_CLK_BASE1 24000000 /* Half
    > the clock freq */
    > +#define BCMAI_CC_CLK_BASE2 12500000 /* Alternate
    > crystal on some PLL's */
    > +
    > +/* Clock control values for 200Mhz in 5350 */
    > +#define BCMAI_CC_CLK_5350_N 0x0311
    > +#define BCMAI_CC_CLK_5350_M 0x04020009
    > +
    > +
    > +/** Bits in the config registers **/
    > +
    > +#define BCMAI_CC_CFG_EN 0x0001 /*
    > Enable */
    > +#define BCMAI_CC_CFG_EXTM 0x000E /* Extif
    > Mode */
    > +#define BCMAI_CC_CFG_EXTM_ASYNC 0x0002 /*
    > Async/Parallel flash */
    > +#define BCMAI_CC_CFG_EXTM_SYNC 0x0004 /*
    > Synchronous */
    > +#define BCMAI_CC_CFG_EXTM_PCMCIA 0x0008 /*
    > PCMCIA */
    > +#define BCMAI_CC_CFG_EXTM_IDE 0x000A /* IDE */
    > +#define BCMAI_CC_CFG_DS16 0x0010 /* Data
    > size, 0=8bit, 1=16bit */
    > +#define BCMAI_CC_CFG_CLKDIV 0x0060 /* Sync:
    > Clock divisor */
    > +#define BCMAI_CC_CFG_CLKEN 0x0080 /* Sync:
    > Clock enable */
    > +#define BCMAI_CC_CFG_BSTRO 0x0100 /* Sync:
    > Size/Bytestrobe */
    > +
    > +
    > +/** Flash-specific control/status values */
    > +
    > +/* flashcontrol opcodes for ST flashes */
    > +#define BCMAI_CC_FLASHCTL_ST_WREN 0x0006 /* Write Enable
    > */
    > +#define BCMAI_CC_FLASHCTL_ST_WRDIS 0x0004 /* Write Disable
    > */
    > +#define BCMAI_CC_FLASHCTL_ST_RDSR 0x0105 /* Read Status
    > Register */
    > +#define BCMAI_CC_FLASHCTL_ST_WRSR 0x0101 /* Write Status
    > Register */
    > +#define BCMAI_CC_FLASHCTL_ST_READ 0x0303 /* Read Data
    > Bytes */
    > +#define BCMAI_CC_FLASHCTL_ST_PP 0x0302 /* Page
    > Program */
    > +#define BCMAI_CC_FLASHCTL_ST_SE 0x02D8 /*
    > Sector Erase */
    > +#define BCMAI_CC_FLASHCTL_ST_BE 0x00C7 /* Bulk
    > Erase */
    > +#define BCMAI_CC_FLASHCTL_ST_DP 0x00B9 /* Deep
    > Power-down */
    > +#define BCMAI_CC_FLASHCTL_ST_RSIG 0x03AB /* Read
    > Electronic Signature */
    > +
    > +/* Status register bits for ST flashes */
    > +#define BCMAI_CC_FLASHSTA_ST_WIP 0x01 /* Write In
    > Progress */
    > +#define BCMAI_CC_FLASHSTA_ST_WEL 0x02 /* Write Enable
    > Latch */
    > +#define BCMAI_CC_FLASHSTA_ST_BP 0x1C /* Block
    > Protect */
    > +#define BCMAI_CC_FLASHSTA_ST_BP_SHIFT 2
    > +#define BCMAI_CC_FLASHSTA_ST_SRWD 0x80 /* Status
    > Register Write Disable */
    > +
    > +/* flashcontrol opcodes for Atmel flashes */
    > +#define BCMAI_CC_FLASHCTL_AT_READ 0x07E8
    > +#define BCMAI_CC_FLASHCTL_AT_PAGE_READ 0x07D2
    > +#define BCMAI_CC_FLASHCTL_AT_BUF1_READ /* FIXME */
    > +#define BCMAI_CC_FLASHCTL_AT_BUF2_READ /* FIXME */
    > +#define BCMAI_CC_FLASHCTL_AT_STATUS 0x01D7
    > +#define BCMAI_CC_FLASHCTL_AT_BUF1_WRITE 0x0384
    > +#define BCMAI_CC_FLASHCTL_AT_BUF2_WRITE 0x0387
    > +#define BCMAI_CC_FLASHCTL_AT_BUF1_ERASE_PRGM 0x0283 /* Erase program
    > */
    > +#define BCMAI_CC_FLASHCTL_AT_BUF2_ERASE_PRGM 0x0286 /* Erase program
    > */
    > +#define BCMAI_CC_FLASHCTL_AT_BUF1_PROGRAM 0x0288
    > +#define BCMAI_CC_FLASHCTL_AT_BUF2_PROGRAM 0x0289
    > +#define BCMAI_CC_FLASHCTL_AT_PAGE_ERASE 0x0281
    > +#define BCMAI_CC_FLASHCTL_AT_BLOCK_ERASE 0x0250
    > +#define BCMAI_CC_FLASHCTL_AT_BUF1_WRER_PRGM 0x0382 /* Write erase
    > program */
    > +#define BCMAI_CC_FLASHCTL_AT_BUF2_WRER_PRGM 0x0385 /* Write erase
    > program */
    > +#define BCMAI_CC_FLASHCTL_AT_BUF1_LOAD 0x0253
    > +#define BCMAI_CC_FLASHCTL_AT_BUF2_LOAD 0x0255
    > +#define BCMAI_CC_FLASHCTL_AT_BUF1_COMPARE 0x0260
    > +#define BCMAI_CC_FLASHCTL_AT_BUF2_COMPARE 0x0261
    > +#define BCMAI_CC_FLASHCTL_AT_BUF1_REPROGRAM 0x0258
    > +#define BCMAI_CC_FLASHCTL_AT_BUF2_REPROGRAM 0x0259
    > +
    > +/* Status register bits for Atmel flashes */
    > +#define BCMAI_CC_FLASHSTA_AT_READY 0x80
    > +#define BCMAI_CC_FLASHSTA_AT_MISMATCH 0x40
    > +#define BCMAI_CC_FLASHSTA_AT_ID 0x38
    > +#define BCMAI_CC_FLASHSTA_AT_ID_SHIFT 3
    > +
    > +
    > +/** OTP **/
    > +
    > +/* OTP regions */
    > +#define BCMAI_CC_OTP_HW_REGION BCMAI_CC_OTPS_HW_PROTECT
    > +#define BCMAI_CC_OTP_SW_REGION BCMAI_CC_OTPS_SW_PROTECT
    > +#define BCMAI_CC_OTP_CID_REGION BCMAI_CC_OTPS_CID_PROTECT
    > +
    > +/* OTP regions (Byte offsets from otp size) */
    > +#define BCMAI_CC_OTP_SWLIM_OFF (-8)
    > +#define BCMAI_CC_OTP_CIDBASE_OFF 0
    > +#define BCMAI_CC_OTP_CIDLIM_OFF 8
    > +
    > +/* Predefined OTP words (Word offset from otp size) */
    > +#define BCMAI_CC_OTP_BOUNDARY_OFF (-4)
    > +#define BCMAI_CC_OTP_HWSIGN_OFF (-3)
    > +#define BCMAI_CC_OTP_SWSIGN_OFF (-2)
    > +#define BCMAI_CC_OTP_CIDSIGN_OFF (-1)
    > +
    > +#define BCMAI_CC_OTP_CID_OFF 0
    > +#define BCMAI_CC_OTP_PKG_OFF 1
    > +#define BCMAI_CC_OTP_FID_OFF 2
    > +#define BCMAI_CC_OTP_RSV_OFF 3
    > +#define BCMAI_CC_OTP_LIM_OFF 4
    > +
    > +#define BCMAI_CC_OTP_SIGNATURE 0x578A
    > +#define BCMAI_CC_OTP_MAGIC 0x4E56
    > +
    > +/* Data for the PMU, if available.
    > + * Check availability with ((struct ssb_chipcommon)->capabilities &
    > BCMAI_CC_CAP_PMU)
    > + */
    > +struct bcmai_chipcommon_pmu {
    > + u8 rev; /* PMU revision */
    > + u32 crystalfreq; /* The active crystal frequency (in kHz)
    > */
    > +};
    > +
    > +struct bcmai_drv_cc {
    > + struct bcmai_device *core;
    > + u32 status;
    > + u32 capabilities;
    > + u32 capabilities_ext;
    > + /* Fast Powerup Delay constant */
    > + u16 fast_pwrup_delay;
    > + struct bcmai_chipcommon_pmu pmu;
    > +};
    > +
    > +/* Register access */
    > +#define bcmai_cc_read32(cc, offset) bcmai_read32((cc)->core,
    > offset)
    > +#define bcmai_cc_write32(cc, offset, val)
    > bcmai_write32((cc)->core, offset, val)
    > +
    > +#define bcmai_cc_mask32(cc, offset, mask) \
    > + bcmai_cc_write32(cc, offset, bcmai_cc_read32(cc, offset)
    > & (mask))
    > +#define bcmai_cc_set32(cc, offset, set) \
    > + bcmai_cc_write32(cc, offset, bcmai_cc_read32(cc, offset)
    > | (set))
    > +#define bcmai_cc_maskset32(cc, offset, mask, set) \
    > + bcmai_cc_write32(cc, offset, (bcmai_cc_read32(cc,
    > offset) & (mask)) | (set))
    > +
    > +extern void bcmai_core_chipcommon_init(struct bcmai_drv_cc *cc);
    > +
    > +extern void bcmai_chipco_suspend(struct bcmai_drv_cc *cc);
    > +extern void bcmai_chipco_resume(struct bcmai_drv_cc *cc);
    > +
    > +extern void bcmai_chipco_get_clockcpu(struct bcmai_drv_cc *cc,
    > + u32 *plltype, u32 *n, u32 *m);
    > +extern void bcmai_chipco_get_clockcontrol(struct bcmai_drv_cc *cc,
    > + u32 *plltype, u32 *n, u32 *m);
    > +extern void bcmai_chipco_timing_init(struct bcmai_drv_cc *cc,
    > + unsigned long ns_per_cycle);
    > +
    > +enum bcmai_clkmode {
    > + BCMAI_CLKMODE_SLOW,
    > + BCMAI_CLKMODE_FAST,
    > + BCMAI_CLKMODE_DYNAMIC,
    > +};
    > +
    > +extern void bcmai_chipco_set_clockmode(struct bcmai_drv_cc *cc,
    > + enum bcmai_clkmode mode);
    > +
    > +extern void bcmai_chipco_watchdog_timer_set(struct bcmai_drv_cc *cc,
    > + u32 ticks);
    > +
    > +void bcmai_chipco_irq_mask(struct bcmai_drv_cc *cc, u32 mask, u32
    > value);
    > +
    > +u32 bcmai_chipco_irq_status(struct bcmai_drv_cc *cc, u32 mask);
    > +
    > +/* Chipcommon GPIO pin access. */
    > +u32 bcmai_chipco_gpio_in(struct bcmai_drv_cc *cc, u32 mask);
    > +u32 bcmai_chipco_gpio_out(struct bcmai_drv_cc *cc, u32 mask, u32 value);
    > +u32 bcmai_chipco_gpio_outen(struct bcmai_drv_cc *cc, u32 mask, u32
    > value);
    > +u32 bcmai_chipco_gpio_control(struct bcmai_drv_cc *cc, u32 mask, u32
    > value);
    > +u32 bcmai_chipco_gpio_intmask(struct bcmai_drv_cc *cc, u32 mask, u32
    > value);
    > +u32 bcmai_chipco_gpio_polarity(struct bcmai_drv_cc *cc, u32 mask, u32
    > value);
    > +
    > +#ifdef CONFIG_SSB_SERIAL
    > +extern int bcmai_chipco_serial_init(struct bcmai_drv_cc *cc,
    > + struct ssb_serial_port *ports);
    > +#endif /* CONFIG_SSB_SERIAL */
    > +
    > +/* PMU support */
    > +extern void bcmai_pmu_init(struct bcmai_drv_cc *cc);
    > +
    > +#endif /* LINUX_BCMAI_DRIVER_CC_H_ */
    > diff --git a/include/linux/bcmai/bcmai_driver_pci.h
    > b/include/linux/bcmai/bcmai_driver_pci.h
    > new file mode 100644
    > index 0000000..113f84b
    > --- /dev/null
    > +++ b/include/linux/bcmai/bcmai_driver_pci.h
    > @@ -0,0 +1,92 @@
    > +#ifndef LINUX_BCMAI_DRIVER_PCI_H_
    > +#define LINUX_BCMAI_DRIVER_PCI_H_
    > +
    > +#include <linux/types.h>
    > +
    > +struct pci_dev;
    > +
    > +/* PCI core registers. */
    > +#define BCMAI_CORE_PCI_CTL 0x0000 /* PCI Control */
    > +#define BCMAI_CORE_PCI_CTL_RST_OE 0x00000001 /* PCI_RESET
    > Output Enable */
    > +#define BCMAI_CORE_PCI_CTL_RST 0x00000002 /*
    > PCI_RESET driven out to pin */
    > +#define BCMAI_CORE_PCI_CTL_CLK_OE 0x00000004 /* Clock gate
    > Output Enable */
    > +#define BCMAI_CORE_PCI_CTL_CLK 0x00000008 /*
    > Gate for clock driven out to pin */
    > +#define BCMAI_CORE_PCI_ARBCTL 0x0010 /* PCI Arbiter
    > Control */
    > +#define BCMAI_CORE_PCI_ARBCTL_INTERN 0x00000001 /* Use
    > internal arbiter */
    > +#define BCMAI_CORE_PCI_ARBCTL_EXTERN 0x00000002 /* Use
    > external arbiter */
    > +#define BCMAI_CORE_PCI_ARBCTL_PARKID 0x00000006 /* Mask,
    > selects which agent is parked on an idle bus */
    > +#define BCMAI_CORE_PCI_ARBCTL_PARKID_LAST 0x00000000 /* Last
    > requestor */
    > +#define BCMAI_CORE_PCI_ARBCTL_PARKID_4710 0x00000002 /* 4710 */
    > +#define BCMAI_CORE_PCI_ARBCTL_PARKID_EXT0 0x00000004 /* External
    > requestor 0 */
    > +#define BCMAI_CORE_PCI_ARBCTL_PARKID_EXT1 0x00000006 /* External
    > requestor 1 */
    > +#define BCMAI_CORE_PCI_ISTAT 0x0020 /* Interrupt
    > status */
    > +#define BCMAI_CORE_PCI_ISTAT_INTA 0x00000001 /* PCI INTA#
    > */
    > +#define BCMAI_CORE_PCI_ISTAT_INTB 0x00000002 /* PCI INTB#
    > */
    > +#define BCMAI_CORE_PCI_ISTAT_SERR 0x00000004 /* PCI SERR#
    > (write to clear) */
    > +#define BCMAI_CORE_PCI_ISTAT_PERR 0x00000008 /* PCI PERR#
    > (write to clear) */
    > +#define BCMAI_CORE_PCI_ISTAT_PME 0x00000010 /* PCI PME# */
    > +#define BCMAI_CORE_PCI_IMASK 0x0024 /* Interrupt
    > mask */
    > +#define BCMAI_CORE_PCI_IMASK_INTA 0x00000001 /* PCI INTA#
    > */
    > +#define BCMAI_CORE_PCI_IMASK_INTB 0x00000002 /* PCI INTB#
    > */
    > +#define BCMAI_CORE_PCI_IMASK_SERR 0x00000004 /* PCI SERR#
    > */
    > +#define BCMAI_CORE_PCI_IMASK_PERR 0x00000008 /* PCI PERR#
    > */
    > +#define BCMAI_CORE_PCI_IMASK_PME 0x00000010 /* PCI PME# */
    > +#define BCMAI_CORE_PCI_MBOX 0x0028 /* Backplane to
    > PCI Mailbox */
    > +#define BCMAI_CORE_PCI_MBOX_F0_0 0x00000100 /* PCI
    > function 0, INT 0 */
    > +#define BCMAI_CORE_PCI_MBOX_F0_1 0x00000200 /* PCI
    > function 0, INT 1 */
    > +#define BCMAI_CORE_PCI_MBOX_F1_0 0x00000400 /* PCI
    > function 1, INT 0 */
    > +#define BCMAI_CORE_PCI_MBOX_F1_1 0x00000800 /* PCI
    > function 1, INT 1 */
    > +#define BCMAI_CORE_PCI_MBOX_F2_0 0x00001000 /* PCI
    > function 2, INT 0 */
    > +#define BCMAI_CORE_PCI_MBOX_F2_1 0x00002000 /* PCI
    > function 2, INT 1 */
    > +#define BCMAI_CORE_PCI_MBOX_F3_0 0x00004000 /* PCI
    > function 3, INT 0 */
    > +#define BCMAI_CORE_PCI_MBOX_F3_1 0x00008000 /* PCI
    > function 3, INT 1 */
    > +#define BCMAI_CORE_PCI_BCAST_ADDR 0x0050 /* Backplane
    > Broadcast Address */
    > +#define BCMAI_CORE_PCI_BCAST_ADDR_MASK 0x000000FF
    > +#define BCMAI_CORE_PCI_BCAST_DATA 0x0054 /* Backplane
    > Broadcast Data */
    > +#define BCMAI_CORE_PCI_GPIO_IN 0x0060 /* rev >= 2 only
    > */
    > +#define BCMAI_CORE_PCI_GPIO_OUT 0x0064 /* rev
    > >= 2 only */
    > +#define BCMAI_CORE_PCI_GPIO_ENABLE 0x0068 /* rev >= 2 only
    > */
    > +#define BCMAI_CORE_PCI_GPIO_CTL 0x006C /* rev
    > >= 2 only */
    > +#define BCMAI_CORE_PCI_SBTOPCI0 0x0100 /*
    > Backplane to PCI translation 0 (sbtopci0) */
    > +#define BCMAI_CORE_PCI_SBTOPCI0_MASK 0xFC000000
    > +#define BCMAI_CORE_PCI_SBTOPCI1 0x0104 /*
    > Backplane to PCI translation 1 (sbtopci1) */
    > +#define BCMAI_CORE_PCI_SBTOPCI1_MASK 0xFC000000
    > +#define BCMAI_CORE_PCI_SBTOPCI2 0x0108 /*
    > Backplane to PCI translation 2 (sbtopci2) */
    > +#define BCMAI_CORE_PCI_SBTOPCI2_MASK 0xC0000000
    > +#define BCMAI_CORE_PCI_PCICFG0 0x0400 /* PCI config
    > space 0 (rev >= 8) */
    > +#define BCMAI_CORE_PCI_PCICFG1 0x0500 /* PCI config
    > space 1 (rev >= 8) */
    > +#define BCMAI_CORE_PCI_PCICFG2 0x0600 /* PCI config
    > space 2 (rev >= 8) */
    > +#define BCMAI_CORE_PCI_PCICFG3 0x0700 /* PCI config
    > space 3 (rev >= 8) */
    > +#define BCMAI_CORE_PCI_SPROM(wordoffset) (0x0800 + ((wordoffset)
    > * 2)) /* SPROM shadow area (72 bytes) */
    > +
    > +/* SBtoPCIx */
    > +#define BCMAI_CORE_PCI_SBTOPCI_MEM 0x00000000
    > +#define BCMAI_CORE_PCI_SBTOPCI_IO 0x00000001
    > +#define BCMAI_CORE_PCI_SBTOPCI_CFG0 0x00000002
    > +#define BCMAI_CORE_PCI_SBTOPCI_CFG1 0x00000003
    > +#define BCMAI_CORE_PCI_SBTOPCI_PREF 0x00000004 /* Prefetch
    > enable */
    > +#define BCMAI_CORE_PCI_SBTOPCI_BURST 0x00000008 /* Burst
    > enable */
    > +#define BCMAI_CORE_PCI_SBTOPCI_MRM 0x00000020 /* Memory
    > Read Multiple */
    > +#define BCMAI_CORE_PCI_SBTOPCI_RC 0x00000030 /* Read
    > Command mask (rev >= 11) */
    > +#define BCMAI_CORE_PCI_SBTOPCI_RC_READ 0x00000000 /*
    > Memory read */
    > +#define BCMAI_CORE_PCI_SBTOPCI_RC_READL 0x00000010 /* Memory
    > read line */
    > +#define BCMAI_CORE_PCI_SBTOPCI_RC_READM 0x00000020 /* Memory
    > read multiple */
    > +
    > +/* PCIcore specific boardflags */
    > +#define BCMAI_CORE_PCI_BFL_NOPCI 0x00000400 /* Board
    > leaves PCI floating */
    > +
    > +struct bcmai_drv_pci {
    > + struct bcmai_device *core;
    > + u8 setup_done:1;
    > +};
    > +
    > +extern void bcmai_core_pci_init(struct bcmai_drv_pci *pc);
    > +
    > +/* Enable IRQ routing for a specific device */
    > +extern int bcmai_pcicore_dev_irqvecs_enable(struct bcmai_drv_pci *pc,
    > + struct bcmai_device *core);
    > +
    > +int ssb_pcicore_plat_dev_init(struct pci_dev *d);
    > +int ssb_pcicore_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8
    > pin);
    > +
    > +#endif /* LINUX_BCMAI_DRIVER_PCI_H_ */
    > diff --git a/include/linux/bcmai/bcmai_regs.h
    > b/include/linux/bcmai/bcmai_regs.h
    > new file mode 100644
    > index 0000000..68ab97f
    > --- /dev/null
    > +++ b/include/linux/bcmai/bcmai_regs.h
    > @@ -0,0 +1,34 @@
    > +#ifndef LINUX_BCMAI_REGS_H_
    > +#define LINUX_BCMAI_REGS_H_
    > +
    > +/* Agent registers (common for every core) */
    > +#define BCMAI_IOCTL 0x0408
    > +#define BCMAI_IOCTL_CORE_BITS 0x3FFC
    > +#define BCMAI_IOCTL_CLK 0x0001
    > +#define BCMAI_IOCTL_FGC 0x0002
    > +#define BCMAI_IOCTL_PME_EN 0x4000
    > +#define BCMAI_IOCTL_BIST_EN 0x8000
    > +#define BCMAI_RESET_CTL 0x0800
    > +#define BCMAI_RESET_CTL_RESET 0x0001
    > +
    > +/* SSB PCI config space registers. */
    > +#define BCMAI_PCI_PMCSR 0x44
    > +#define BCMAI_PCI_PE 0x100
    > +#define BCMAI_PCI_BAR0_WIN 0x80 /* Backplane
    > address space 0 */
    > +#define BCMAI_PCI_BAR1_WIN 0x84 /* Backplane
    > address space 1 */
    > +#define BCMAI_PCI_SPROMCTL 0x88 /* SPROM control
    > */
    > +#define BCMAI_PCI_SPROMCTL_WE 0x10 /* SPROM write enable */
    > +#define BCMAI_PCI_BAR1_CONTROL 0x8c /* Address space
    > 1 burst control */
    > +#define BCMAI_PCI_IRQS 0x90 /* PCI interrupts */
    > +#define BCMAI_PCI_IRQMASK 0x94 /* PCI IRQ control and
    > mask (pcirev >= 6 only) */
    > +#define BCMAI_PCI_BACKPLANE_IRQS 0x98 /* Backplane Interrupts
    > */
    > +#define BCMAI_PCI_BAR0_WIN2 0xAC
    > +#define BCMAI_PCI_GPIO_IN 0xB0 /* GPIO Input (pcirev >=
    > 3 only) */
    > +#define BCMAI_PCI_GPIO_OUT 0xB4 /* GPIO Output (pcirev
    > >= 3 only) */
    > +#define BCMAI_PCI_GPIO_OUT_ENABLE 0xB8 /* GPIO Output
    > Enable/Disable (pcirev >= 3 only) */
    > +#define BCMAI_PCI_GPIO_SCS 0x10 /* PCI config space bit
    > 4 for 4306c0 slow clock source */
    > +#define BCMAI_PCI_GPIO_HWRAD 0x20 /* PCI config space GPIO
    > 13 for hw radio disable */
    > +#define BCMAI_PCI_GPIO_XTAL 0x40 /* PCI config space GPIO
    > 14 for Xtal powerup */
    > +#define BCMAI_PCI_GPIO_PLL 0x80 /* PCI config space GPIO
    > 15 for PLL powerdown */
    > +
    > +#endif /* LINUX_BCMAI_REGS_H_ */
    > diff --git a/include/linux/mod_devicetable.h
    > b/include/linux/mod_devicetable.h
    > index 48c007d..b4869cd 100644
    > --- a/include/linux/mod_devicetable.h
    > +++ b/include/linux/mod_devicetable.h
    > @@ -382,6 +382,21 @@ struct ssb_device_id {
    > #define SSB_ANY_ID 0xFFFF
    > #define SSB_ANY_REV 0xFF
    >
    > +/* AI core, see drivers/bcmai/ */
    > +struct bcmai_device_id {
    > + __u16 manuf;
    > + __u16 id;
    > + __u8 rev;
    > +};
    > +#define BCMAI_CORE(_manuf, _id, _rev) \
    > + { .manuf = _manuf, .id = _id, .rev = _rev, }
    > +#define BCMAI_CORETABLE_END \
    > + { 0, },
    > +
    > +#define BCMAI_ANY_MANUF 0xFFFF
    > +#define BCMAI_ANY_ID 0xFFFF
    > +#define BCMAI_ANY_REV 0xFF
    > +
    > struct virtio_device_id {
    > __u32 device;
    > __u32 vendor;
    > diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
    > index 88f3f07..c048e5f 100644
    > --- a/scripts/mod/file2alias.c
    > +++ b/scripts/mod/file2alias.c
    > @@ -702,6 +702,22 @@ static int do_ssb_entry(const char *filename,
    > return 1;
    > }
    >
    > +/* Looks like: bcmai:mNidNrevN. */
    > +static int do_bcmai_entry(const char *filename,
    > + struct bcmai_device_id *id, char *alias)
    > +{
    > + id->manuf = TO_NATIVE(id->manuf);
    > + id->id = TO_NATIVE(id->id);
    > + id->rev = TO_NATIVE(id->rev);
    > +
    > + strcpy(alias, "bcmai:");
    > + ADD(alias, "m", id->manuf != BCMAI_ANY_MANUF, id->manuf);
    > + ADD(alias, "id", id->id != BCMAI_ANY_ID, id->id);
    > + ADD(alias, "rev", id->rev != BCMAI_ANY_REV, id->rev);
    > + add_wildcard(alias);
    > + return 1;
    > +}
    > +
    > /* Looks like: virtio:dNvN */
    > static int do_virtio_entry(const char *filename, struct
    > virtio_device_id *id,
    > char *alias)
    > @@ -968,6 +984,10 @@ void handle_moddevtable(struct module *mod, struct
    > elf_info *info,
    > do_table(symval, sym->st_size,
    > sizeof(struct ssb_device_id), "ssb",
    > do_ssb_entry, mod);
    > + else if (sym_is(symname, "__mod_bcmai_device_table"))
    > + do_table(symval, sym->st_size,
    > + sizeof(struct bcmai_device_id), "bcmai",
    > + do_bcmai_entry, mod);
    > else if (sym_is(symname, "__mod_virtio_device_table"))
    > do_table(symval, sym->st_size,
    > sizeof(struct virtio_device_id), "virtio",
    > --
    > 1.7.3.4
    >
    >


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    mind to correlate all its contents." - "The Call of Cthulhu"

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      Last update: 2011-04-06 16:21    [from the cache]
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