Current devices.c file has a number of instances where
IO_ADDRESS() is used for system module register
access. Eliminate this in favor of a ioremap()
based access.
Consequent to this, a new global pointer davinci_sysmodbase
has been introduced which gets initialized during
the initialization of each relevant SoC
Signed-off-by: Manjunath Hadli <manjunath.hadli@xxxxxx>
Acked-by: Sekhar Nori <nsekhar@xxxxxx>
---
arch/arm/mach-davinci/devices.c | 24 +++++++++++++++---------
arch/arm/mach-davinci/dm355.c | 1 +
arch/arm/mach-davinci/dm365.c | 1 +
arch/arm/mach-davinci/dm644x.c | 1 +
arch/arm/mach-davinci/dm646x.c | 1 +
arch/arm/mach-davinci/include/mach/hardware.h | 6 ++++++
6 files changed, 25 insertions(+), 9 deletions(-)
diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c
index 4e1b663..529b440 100644
--- a/arch/arm/mach-davinci/devices.c
+++ b/arch/arm/mach-davinci/devices.c
@@ -33,6 +33,14 @@
#define DM365_MMCSD0_BASE 0x01D11000
#define DM365_MMCSD1_BASE 0x01D00000
+void __iomem *davinci_sysmodbase;
+
+void davinci_map_sysmod(void)
+{
+ davinci_sysmodbase = ioremap_nocache(DAVINCI_SYSTEM_MODULE_BASE, 0x800);
+ WARN_ON(!davinci_sysmodbase);
+}
+
static struct resource i2c_resources[] = {
{
.start = DAVINCI_I2C_BASE,
@@ -210,12 +218,12 @@ void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
davinci_cfg_reg(DM355_SD1_DATA2);
davinci_cfg_reg(DM355_SD1_DATA3);
} else if (cpu_is_davinci_dm365()) {
- void __iomem *pupdctl1 =
- IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE + 0x7c);
-
/* Configure pull down control */
- __raw_writel((__raw_readl(pupdctl1) & ~0xfc0),
- pupdctl1);
+ void __iomem *pupdctl1 = DAVINCI_SYSMODULE_VIRT(0x7c);
+ unsigned v;
+
+ v = __raw_readl(pupdctl1);
+ __raw_writel(v & ~0xfc0, pupdctl1);
mmcsd1_resources[0].start = DM365_MMCSD1_BASE;
mmcsd1_resources[0].end = DM365_MMCSD1_BASE +
@@ -244,11 +252,9 @@ void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
mmcsd0_resources[2].start = IRQ_DM365_SDIOINT0;
} else if (cpu_is_davinci_dm644x()) {
/* REVISIT: should this be in board-init code? */
- void __iomem *base =
- IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE);
-
/* Power-on 3.3V IO cells */
- __raw_writel(0, base + DM64XX_VDD3P3V_PWDN);
+ __raw_writel(0,
+ DAVINCI_SYSMODULE_VIRT(DM64XX_VDD3P3V_PWDN));
/*Set up the pull regiter for MMC */
davinci_cfg_reg(DM644X_MSTK);
}
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index a5f8a80..1baab94 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -874,6 +874,7 @@ void __init dm355_init_asp1(u32 evt_enable, struct snd_platform_data *pdata)
void __init dm355_init(void)
{
davinci_common_init(&davinci_soc_info_dm355);
+ davinci_map_sysmod();
}
static int __init dm355_init_devices(void)
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 02d2cc3..a788980 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -1127,6 +1127,7 @@ void __init dm365_init_rtc(void)
void __init dm365_init(void)
{
davinci_common_init(&davinci_soc_info_dm365);
+ davinci_map_sysmod();
}
static struct resource dm365_vpss_resources[] = {
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 9a2376b..77dea11 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -779,6 +779,7 @@ void __init dm644x_init_asp(struct snd_platform_data *pdata)
void __init dm644x_init(void)
{
davinci_common_init(&davinci_soc_info_dm644x);
+ davinci_map_sysmod();
}
static int __init dm644x_init_devices(void)
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 1e0f809..ce93b83 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -903,6 +903,7 @@ void __init dm646x_init(void)
{
dm646x_board_setup_refclk(&ref_clk);
davinci_common_init(&davinci_soc_info_dm646x);
+ davinci_map_sysmod();
}
static int __init dm646x_init_devices(void)
diff --git a/arch/arm/mach-davinci/include/mach/hardware.h b/arch/arm/mach-davinci/include/mach/hardware.h
index 414e0b9..2a6b560 100644
--- a/arch/arm/mach-davinci/include/mach/hardware.h
+++ b/arch/arm/mach-davinci/include/mach/hardware.h
@@ -21,6 +21,12 @@
*/
#define DAVINCI_SYSTEM_MODULE_BASE 0x01C40000
+#ifndef __ASSEMBLER__
+extern void __iomem *davinci_sysmodbase;
+#define DAVINCI_SYSMODULE_VIRT(x) (davinci_sysmodbase + (x))
+void davinci_map_sysmod(void);
+#endif
+
/*
* I/O mapping
*/
--
1.6.2.4
--
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