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authorTomasz Figa <t.figa@samsung.com>2014-03-17 23:28:09 +0100
committerKukjin Kim <kgene.kim@samsung.com>2014-03-20 20:06:11 +0100
commit99b2fc2b8b40256538332769f11f2fe6ee942f6c (patch)
tree7303be5f6d13dc66e07c14f8da99e2593d87ce0e /arch/arm
parentARM: SAMSUNG: Save UART DIVSLOT register based on SoC type (diff)
downloadlinux-99b2fc2b8b40256538332769f11f2fe6ee942f6c.tar.xz
linux-99b2fc2b8b40256538332769f11f2fe6ee942f6c.zip
ARM: SAMSUNG: Use debug_ll_addr() to get UART base address
This patch modifies Samsung PM debug helpers to use a multiplatform friendly way of getting base address of debug UART port, so instead of using a per-mach static macro, a generic debug_ll_addr() helper is used. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/plat-samsung/pm.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c
index 3563421d63ab..c7fac34de621 100644
--- a/arch/arm/plat-samsung/pm.c
+++ b/arch/arm/plat-samsung/pm.c
@@ -22,6 +22,7 @@
#include <linux/io.h>
#include <asm/cacheflush.h>
+#include <asm/mach/map.h>
#include <asm/suspend.h>
#include <plat/cpu.h>
@@ -74,9 +75,19 @@ static inline void s3c_pm_debug_init(void)
static struct pm_uart_save uart_save;
+static inline void __iomem *s3c_pm_uart_base(void)
+{
+ unsigned long paddr;
+ unsigned long vaddr;
+
+ debug_ll_addr(&paddr, &vaddr);
+
+ return (void __iomem *)vaddr;
+}
+
static void s3c_pm_save_uart(unsigned int uart, struct pm_uart_save *save)
{
- void __iomem *regs = S3C_VA_UARTx(uart);
+ void __iomem *regs = s3c_pm_uart_base();
save->ulcon = __raw_readl(regs + S3C2410_ULCON);
save->ucon = __raw_readl(regs + S3C2410_UCON);
@@ -98,7 +109,7 @@ static void s3c_pm_save_uarts(void)
static void s3c_pm_restore_uart(unsigned int uart, struct pm_uart_save *save)
{
- void __iomem *regs = S3C_VA_UARTx(uart);
+ void __iomem *regs = s3c_pm_uart_base();
s3c_pm_arch_update_uart(regs, save);