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Subject[PATCH 4/7] Alchemy: register mmc platform device for db1200/pb1200 boards
From a2ecbdb747a53792dd90c83d48235ae2fddfb95e Mon Sep 17 00:00:00 2001
From: Manuel Lauss <mlau@msc-ge.com>
Date: Wed, 7 May 2008 14:59:45 +0200
Subject: [PATCH] Alchemy: register mmc platform device for db1200/pb1200 boards

register the mmc platform device for db1200/pb1200 boards, with
board-specific card detect/readonly facilities wrapped in platform data.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
---
arch/mips/au1000/common/platform.c | 32 ---------
arch/mips/au1000/pb1200/platform.c | 128 +++++++++++++++++++++++++++++++++++-
2 files changed, 127 insertions(+), 33 deletions(-)
diff --git a/arch/mips/au1000/common/platform.c b/arch/mips/au1000/common/platform.c
index 31d2a22..08a5900 100644
--- a/arch/mips/au1000/common/platform.c
+++ b/arch/mips/au1000/common/platform.c
@@ -162,24 +162,6 @@ static struct resource au1xxx_usb_gdt_resources[] = {
},
};

-static struct resource au1xxx_mmc_resources[] = {
- [0] = {
- .start = SD0_PHYS_ADDR,
- .end = SD0_PHYS_ADDR + 0x40,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = SD1_PHYS_ADDR,
- .end = SD1_PHYS_ADDR + 0x40,
- .flags = IORESOURCE_MEM,
- },
- [2] = {
- .start = AU1200_SD_INT,
- .end = AU1200_SD_INT,
- .flags = IORESOURCE_IRQ,
- }
-};
-
static u64 udc_dmamask = ~(u32)0;

static struct platform_device au1xxx_usb_gdt_device = {
@@ -245,19 +227,6 @@ static struct platform_device au1200_lcd_device = {
.num_resources = ARRAY_SIZE(au1200_lcd_resources),
.resource = au1200_lcd_resources,
};
-
-static u64 au1xxx_mmc_dmamask = ~(u32)0;
-
-static struct platform_device au1xxx_mmc_device = {
- .name = "au1xxx-mmc",
- .id = 0,
- .dev = {
- .dma_mask = &au1xxx_mmc_dmamask,
- .coherent_dma_mask = 0xffffffff,
- },
- .num_resources = ARRAY_SIZE(au1xxx_mmc_resources),
- .resource = au1xxx_mmc_resources,
-};
#endif /* #ifdef CONFIG_SOC_AU1200 */

static struct platform_device au1x00_pcmcia_device = {
@@ -295,7 +264,6 @@ static struct platform_device *au1xxx_platform_devices[] __initdata = {
&au1xxx_usb_gdt_device,
&au1xxx_usb_otg_device,
&au1200_lcd_device,
- &au1xxx_mmc_device,
#endif
#ifdef SMBUS_PSC_BASE
&pbdb_smbus_device,
diff --git a/arch/mips/au1000/pb1200/platform.c b/arch/mips/au1000/pb1200/platform.c
index 5930110..c87c173 100644
--- a/arch/mips/au1000/pb1200/platform.c
+++ b/arch/mips/au1000/pb1200/platform.c
@@ -20,8 +20,17 @@

#include <linux/init.h>
#include <linux/platform_device.h>
+#include <linux/mmc/host.h>

#include <asm/mach-au1x00/au1xxx.h>
+#include <asm/mach-au1x00/au1xxx_dbdma.h>
+#include <asm/mach-au1x00/au1100_mmc.h>
+
+#if defined(CONFIG_MIPS_PB1200)
+#include <asm/mach-pb1x00/pb1200.h>
+#elif defined(CONFIG_MIPS_DB1200)
+#include <asm/mach-db1x00/db1200.h>
+#endif

static struct resource ide_resources[] = {
[0] = {
@@ -70,9 +79,126 @@ static struct platform_device smc91c111_device = {
.resource = smc91c111_resources
};

+
+static const struct {
+ u16 bcsrpwr;
+ u16 bcsrstatus;
+ u16 wpstatus;
+} au1xmmc_card_table[] = {
+ { BCSR_BOARD_SD0PWR, BCSR_INT_SD0INSERT, BCSR_STATUS_SD0WP },
+#ifndef CONFIG_MIPS_DB1200
+ { BCSR_BOARD_SD1PWR, BCSR_INT_SD1INSERT, BCSR_STATUS_SD1WP }
+#endif
+};
+
+static void pb1200mmc_set_power(void *mmc_host, int state)
+{
+ struct au1xmmc_host *host = mmc_priv((struct mmc_host *)mmc_host);
+ u32 val = au1xmmc_card_table[host->id].bcsrpwr;
+
+ if (state)
+ bcsr->board |= val;
+ else
+ bcsr->board &= ~val;
+
+ au_sync_delay(1);
+}
+
+static int pb1200mmc_card_readonly(void *mmc_host)
+{
+ struct au1xmmc_host *host = mmc_priv((struct mmc_host *)mmc_host);
+ return (bcsr->status & au1xmmc_card_table[host->id].wpstatus) ? 1 : 0;
+}
+
+static int pb1200mmc_card_inserted(void *mmc_host)
+{
+ struct au1xmmc_host *host = mmc_priv((struct mmc_host *)mmc_host);
+ return (bcsr->sig_status & au1xmmc_card_table[host->id].bcsrstatus)
+ ? 1 : 0;
+}
+
+static struct au1xmmc_platdata db1xmmcpd = {
+ .set_power = pb1200mmc_set_power,
+ .card_inserted = pb1200mmc_card_inserted,
+ .card_readonly = pb1200mmc_card_readonly,
+ .cd_setup = NULL, /* use poll-timer in driver */
+};
+
+static u64 au1xxx_mmc_dmamask = ~(u32)0;
+
+struct resource au1200_sd0_res[] = {
+ [0] = {
+ .start = CPHYSADDR(SD0_BASE),
+ .end = CPHYSADDR(SD0_BASE) + 0x40,
+ .flags = IORESOURCE_MEM,
+ },
+ [2] = {
+ .start = AU1200_SD_INT,
+ .flags = IORESOURCE_IRQ,
+ },
+ [3] = {
+ .start = DSCR_CMD0_SDMS_TX0,
+ .flags = IORESOURCE_DMA,
+ },
+ [4] = {
+ .start = DSCR_CMD0_SDMS_RX0,
+ .flags = IORESOURCE_DMA,
+ },
+};
+
+static struct platform_device au1xxx_sd0_device = {
+ .name = "au1xxx-mmc",
+ .id = 0, /* index into au1xmmc_card_table[] */
+ .dev = {
+ .dma_mask = &au1xxx_mmc_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ .platform_data = &db1xmmcpd,
+ },
+ .num_resources = ARRAY_SIZE(au1200_sd0_res),
+ .resource = au1200_sd0_res,
+};
+
+#ifndef CONFIG_MIPS_DB1200
+struct resource au1200_sd1_res[] = {
+ [0] = {
+ .start = CPHYSADDR(SD1_BASE),
+ .end = CPHYSADDR(SD1_BASE) + 0x40,
+ .flags = IORESOURCE_MEM,
+ },
+ [2] = {
+ .start = AU1200_SD_INT,
+ .flags = IORESOURCE_IRQ,
+ },
+ [3] = {
+ .start = DSCR_CMD0_SDMS_TX1,
+ .flags = IORESOURCE_DMA,
+ },
+ [4] = {
+ .start = DSCR_CMD0_SDMS_RX1,
+ .flags = IORESOURCE_DMA,
+ },
+};
+
+static struct platform_device au1xxx_sd1_device = {
+ .name = "au1xxx-mmc",
+ .id = 1, /* index into au1xmmc_card_table[] */
+ .dev = {
+ .dma_mask = &au1xxx_mmc_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ .platform_data = &db1xmmcpd,
+ },
+ .num_resources = ARRAY_SIZE(au1200_sd1_res),
+ .resource = au1200_sd1_res,
+};
+#endif
+
static struct platform_device *board_platform_devices[] __initdata = {
&ide_device,
- &smc91c111_device
+ &smc91c111_device,
+ &au1xxx_sd0_device,
+#ifndef CONFIG_MIPS_DB1200
+ &au1xxx_sd1_device,
+#endif
};

static int __init board_register_devices(void)
--
1.5.5.1


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