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authorAndrew Lunn <andrew@lunn.ch>2014-02-22 20:14:49 +0100
committerJason Cooper <jason@lakedaemon.net>2014-02-22 20:41:53 +0000
commitd364eecf7ac632ec8db6cbee2c2ddee48c488b98 (patch)
treedf04d0f0d883c3c4a3527cd44d0f1f56ce53344c /arch/arm/mach-kirkwood
parent7f28fd6ebebb70eb2412f2775f2a19e3834601f6 (diff)
downloadop-kernel-dev-d364eecf7ac632ec8db6cbee2c2ddee48c488b98.zip
op-kernel-dev-d364eecf7ac632ec8db6cbee2c2ddee48c488b98.tar.gz
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>
Diffstat (limited to 'arch/arm/mach-kirkwood')
-rw-r--r--arch/arm/mach-kirkwood/include/mach/bridge-regs.h1
-rw-r--r--arch/arm/mach-kirkwood/pm.c9
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 2bd12fd..6e5077e 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 c6ab8d9..8e5e032 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);
}
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