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| author |   Andrew Lunn <andrew@lunn.ch> | 2014-02-22 20:14:49 +0100 |
|---|---|---|
| committer |   Jason Cooper <jason@lakedaemon.net> | 2014-02-22 20:41:53 +0000 |
| commit | d364eecf7ac632ec8db6cbee2c2ddee48c488b98 (patch) | |
| tree | df04d0f0d883c3c4a3527cd44d0f1f56ce53344c | |
| parent | ARM: kirkwood: ioremap the cpu_config register before using it. (diff) | |
| download | linux-dev-d364eecf7ac632ec8db6cbee2c2ddee48c488b98.tar.xz linux-dev-d364eecf7ac632ec8db6cbee2c2ddee48c488b98.zip | |
ARM: kirkwood: ioremap memory control register
To allow removal of the global map of registers, make the pm code
ioremap the registers it needs.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| -rw-r--r-- | arch/arm/mach-kirkwood/include/mach/bridge-regs.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-kirkwood/pm.c | 9 |
2 files changed, 7 insertions, 3 deletions
diff --git a/arch/arm/mach-kirkwood/include/mach/bridge-regs.h b/arch/arm/mach-kirkwood/include/mach/bridge-regs.h index 2bd12fde1781..6e5077e2ec26 100644 --- a/arch/arm/mach-kirkwood/include/mach/bridge-regs.h +++ b/arch/arm/mach-kirkwood/include/mach/bridge-regs.h @@ -80,5 +80,6 @@ #define CGC_RESERVED (0x6 << 21) #define MEMORY_PM_CTRL (BRIDGE_VIRT_BASE + 0x118) +#define MEMORY_PM_CTRL_PHYS (BRIDGE_PHYS_BASE + 0x118) #endif diff --git a/arch/arm/mach-kirkwood/pm.c b/arch/arm/mach-kirkwood/pm.c index c6ab8d9303a5..8e5e0329d04c 100644 --- a/arch/arm/mach-kirkwood/pm.c +++ b/arch/arm/mach-kirkwood/pm.c @@ -21,15 +21,16 @@ #include "common.h" static void __iomem *ddr_operation_base; +static void __iomem *memory_pm_ctrl; static void kirkwood_low_power(void) { u32 mem_pm_ctrl; - mem_pm_ctrl = readl(MEMORY_PM_CTRL); + mem_pm_ctrl = readl(memory_pm_ctrl); /* Set peripherals to low-power mode */ - writel_relaxed(~0, MEMORY_PM_CTRL); + writel_relaxed(~0, memory_pm_ctrl); /* Set DDR in self-refresh */ writel_relaxed(0x7, ddr_operation_base); @@ -41,7 +42,7 @@ static void kirkwood_low_power(void) */ cpu_do_idle(); - writel_relaxed(mem_pm_ctrl, MEMORY_PM_CTRL); + writel_relaxed(mem_pm_ctrl, memory_pm_ctrl); } static int kirkwood_suspend_enter(suspend_state_t state) @@ -69,5 +70,7 @@ static const struct platform_suspend_ops kirkwood_suspend_ops = { void __init kirkwood_pm_init(void) { ddr_operation_base = ioremap(DDR_OPERATION_BASE, 4); + memory_pm_ctrl = ioremap(MEMORY_PM_CTRL_PHYS, 4); + suspend_set_ops(&kirkwood_suspend_ops); } |