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Subject[PATCH v4 5/7] ARM: kirkwood: convert to DT irqchip and clocksource
Date
With recent support for true irqchip and clocksource drivers for Orion
SoCs, now make use of it on DT enabled Kirkwood boards.

This also introduces a new Kconfig option for legacy (non-DT) Kirkwood
where old code is moved out to and polishes DT board file a little bit.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
arch/arm/mach-kirkwood/Kconfig | 22 ++++++++++++++++++++++
arch/arm/mach-kirkwood/Makefile | 4 ++--
arch/arm/mach-kirkwood/board-dt.c | 24 +++++++++++++++++-------
3 files changed, 41 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
index 493c71a..ede131e 100644
--- a/arch/arm/mach-kirkwood/Kconfig
+++ b/arch/arm/mach-kirkwood/Kconfig
@@ -2,67 +2,81 @@ if ARCH_KIRKWOOD

menu "Marvell Kirkwood Implementations"

+config KIRKWOOD_LEGACY
+ bool
+
config MACH_D2NET_V2
bool "LaCie d2 Network v2 NAS Board"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
LaCie d2 Network v2 NAS.

config MACH_DOCKSTAR
bool "Seagate FreeAgent DockStar"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
Seagate FreeAgent DockStar.

config MACH_ESATA_SHEEVAPLUG
bool "Marvell eSATA SheevaPlug Reference Board"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
Marvell eSATA SheevaPlug Reference Board.

config MACH_GURUPLUG
bool "Marvell GuruPlug Reference Board"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
Marvell GuruPlug Reference Board.

config MACH_INETSPACE_V2
bool "LaCie Internet Space v2 NAS Board"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
LaCie Internet Space v2 NAS.

config MACH_MV88F6281GTW_GE
bool "Marvell 88F6281 GTW GE Board"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
Marvell 88F6281 GTW GE Board.

config MACH_NET2BIG_V2
bool "LaCie 2Big Network v2 NAS Board"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
LaCie 2Big Network v2 NAS.

config MACH_NET5BIG_V2
bool "LaCie 5Big Network v2 NAS Board"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
LaCie 5Big Network v2 NAS.

config MACH_NETSPACE_MAX_V2
bool "LaCie Network Space Max v2 NAS Board"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
LaCie Network Space Max v2 NAS.

config MACH_NETSPACE_V2
bool "LaCie Network Space v2 NAS Board"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
LaCie Network Space v2 NAS.

config MACH_OPENRD
+ select KIRKWOOD_LEGACY
bool

config MACH_OPENRD_BASE
@@ -88,30 +102,35 @@ config MACH_OPENRD_ULTIMATE

config MACH_RD88F6192_NAS
bool "Marvell RD-88F6192-NAS Reference Board"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
Marvell RD-88F6192-NAS Reference Board.

config MACH_RD88F6281
bool "Marvell RD-88F6281 Reference Board"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
Marvell RD-88F6281 Reference Board.

config MACH_SHEEVAPLUG
bool "Marvell SheevaPlug Reference Board"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
Marvell SheevaPlug Reference Board.

config MACH_T5325
bool "HP t5325 Thin Client"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
HP t5325 Thin Client.

config MACH_TS219
bool "QNAP TS-110, TS-119, TS-119P+, TS-210, TS-219, TS-219P and TS-219P+ Turbo NAS"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
QNAP TS-110, TS-119, TS-119P+, TS-210, TS-219, TS-219P and
@@ -119,6 +138,7 @@ config MACH_TS219

config MACH_TS41X
bool "QNAP TS-410, TS-410U, TS-419P, TS-419P+ and TS-419U Turbo NAS"
+ select KIRKWOOD_LEGACY
help
Say 'Y' here if you want your kernel to support the
QNAP TS-410, TS-410U, TS-419P, TS-419P+ and TS-419U Turbo
@@ -129,6 +149,8 @@ comment "Device tree entries"
config ARCH_KIRKWOOD_DT
bool "Marvell Kirkwood Flattened Device Tree"
select KIRKWOOD_CLK
+ select ORION_IRQCHIP
+ select ORION_TIMER
select POWER_SUPPLY
select POWER_RESET
select POWER_RESET_GPIO
diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile
index 062f8c7..f78f333 100644
--- a/arch/arm/mach-kirkwood/Makefile
+++ b/arch/arm/mach-kirkwood/Makefile
@@ -1,5 +1,5 @@
-obj-y += common.o irq.o pcie.o mpp.o
-
+obj-y += common.o pcie.o
+obj-$(CONFIG_KIRKWOOD_LEGACY) += irq.o mpp.o
obj-$(CONFIG_MACH_D2NET_V2) += d2net_v2-setup.o lacie_v2-common.o
obj-$(CONFIG_MACH_DOCKSTAR) += dockstar-setup.o
obj-$(CONFIG_MACH_ESATA_SHEEVAPLUG) += sheevaplug-setup.o
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index 881f37e..385244c 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -15,6 +15,9 @@
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+#include <linux/dma-mapping.h>
+#include <linux/irqchip.h>
#include <linux/kexec.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@@ -67,10 +70,18 @@ static void __init kirkwood_legacy_clk_init(void)
clk_prepare_enable(clk);
}

-static void __init kirkwood_of_clk_init(void)
+static void __init kirkwood_dt_time_init(void)
{
of_clk_init(NULL);
- kirkwood_legacy_clk_init();
+ clocksource_of_init();
+}
+
+static void __init kirkwood_dt_init_early(void)
+{
+ init_dma_coherent_pool_size(SZ_1M);
+ mvebu_mbus_init("marvell,kirkwood-mbus",
+ BRIDGE_WINS_BASE, BRIDGE_WINS_SZ,
+ DDR_WINDOW_CPU_BASE, DDR_WINDOW_CPU_SZ);
}

static void __init kirkwood_dt_init(void)
@@ -91,8 +102,8 @@ static void __init kirkwood_dt_init(void)

kirkwood_cpufreq_init();

- /* Setup root of clk tree */
- kirkwood_of_clk_init();
+ /* Setup clocks for legacy devices */
+ kirkwood_legacy_clk_init();

kirkwood_cpuidle_init();

@@ -114,9 +125,8 @@ static const char * const kirkwood_dt_board_compat[] = {
DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)")
/* Maintainer: Jason Cooper <jason@lakedaemon.net> */
.map_io = kirkwood_map_io,
- .init_early = kirkwood_init_early,
- .init_irq = orion_dt_init_irq,
- .init_time = kirkwood_timer_init,
+ .init_early = kirkwood_dt_init_early,
+ .init_time = kirkwood_dt_time_init,
.init_machine = kirkwood_dt_init,
.restart = kirkwood_restart,
.dt_compat = kirkwood_dt_board_compat,
--
1.7.2.5


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