[PATCH 26/40] ARM i.MX3: Make ccm base address a variable
Sascha Hauer
s.hauer at pengutronix.de
Tue Apr 10 09:45:39 EDT 2012
Instead of having a cpu_is_* in each ccm register access it
is mor efficient to make it a variable.
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
arch/arm/mach-imx/crmregs-imx3.h | 79 +++++++++++++++++++-------------------
arch/arm/mach-imx/mm-imx3.c | 6 +++
arch/arm/mach-imx/pm-imx3.c | 4 +-
3 files changed, 47 insertions(+), 42 deletions(-)
diff --git a/arch/arm/mach-imx/crmregs-imx3.h b/arch/arm/mach-imx/crmregs-imx3.h
index 5314127..a1dfde5 100644
--- a/arch/arm/mach-imx/crmregs-imx3.h
+++ b/arch/arm/mach-imx/crmregs-imx3.h
@@ -24,48 +24,47 @@
#define CKIH_CLK_FREQ_27MHZ 27000000
#define CKIL_CLK_FREQ 32768
-#define MXC_CCM_BASE (cpu_is_mx31() ? \
-MX31_IO_ADDRESS(MX31_CCM_BASE_ADDR) : MX35_IO_ADDRESS(MX35_CCM_BASE_ADDR))
+extern void __iomem *mx3_ccm_base;
/* Register addresses */
-#define MXC_CCM_CCMR (MXC_CCM_BASE + 0x00)
-#define MXC_CCM_PDR0 (MXC_CCM_BASE + 0x04)
-#define MXC_CCM_PDR1 (MXC_CCM_BASE + 0x08)
-#define MX35_CCM_PDR2 (MXC_CCM_BASE + 0x0C)
-#define MXC_CCM_RCSR (MXC_CCM_BASE + 0x0C)
-#define MX35_CCM_PDR3 (MXC_CCM_BASE + 0x10)
-#define MXC_CCM_MPCTL (MXC_CCM_BASE + 0x10)
-#define MX35_CCM_PDR4 (MXC_CCM_BASE + 0x14)
-#define MXC_CCM_UPCTL (MXC_CCM_BASE + 0x14)
-#define MX35_CCM_RCSR (MXC_CCM_BASE + 0x18)
-#define MXC_CCM_SRPCTL (MXC_CCM_BASE + 0x18)
-#define MX35_CCM_MPCTL (MXC_CCM_BASE + 0x1C)
-#define MXC_CCM_COSR (MXC_CCM_BASE + 0x1C)
-#define MX35_CCM_PPCTL (MXC_CCM_BASE + 0x20)
-#define MXC_CCM_CGR0 (MXC_CCM_BASE + 0x20)
-#define MX35_CCM_ACMR (MXC_CCM_BASE + 0x24)
-#define MXC_CCM_CGR1 (MXC_CCM_BASE + 0x24)
-#define MX35_CCM_COSR (MXC_CCM_BASE + 0x28)
-#define MXC_CCM_CGR2 (MXC_CCM_BASE + 0x28)
-#define MX35_CCM_CGR0 (MXC_CCM_BASE + 0x2C)
-#define MXC_CCM_WIMR (MXC_CCM_BASE + 0x2C)
-#define MX35_CCM_CGR1 (MXC_CCM_BASE + 0x30)
-#define MXC_CCM_LDC (MXC_CCM_BASE + 0x30)
-#define MX35_CCM_CGR2 (MXC_CCM_BASE + 0x34)
-#define MXC_CCM_DCVR0 (MXC_CCM_BASE + 0x34)
-#define MX35_CCM_CGR3 (MXC_CCM_BASE + 0x38)
-#define MXC_CCM_DCVR1 (MXC_CCM_BASE + 0x38)
-#define MXC_CCM_DCVR2 (MXC_CCM_BASE + 0x3C)
-#define MXC_CCM_DCVR3 (MXC_CCM_BASE + 0x40)
-#define MXC_CCM_LTR0 (MXC_CCM_BASE + 0x44)
-#define MXC_CCM_LTR1 (MXC_CCM_BASE + 0x48)
-#define MXC_CCM_LTR2 (MXC_CCM_BASE + 0x4C)
-#define MXC_CCM_LTR3 (MXC_CCM_BASE + 0x50)
-#define MXC_CCM_LTBR0 (MXC_CCM_BASE + 0x54)
-#define MXC_CCM_LTBR1 (MXC_CCM_BASE + 0x58)
-#define MXC_CCM_PMCR0 (MXC_CCM_BASE + 0x5C)
-#define MXC_CCM_PMCR1 (MXC_CCM_BASE + 0x60)
-#define MXC_CCM_PDR2 (MXC_CCM_BASE + 0x64)
+#define MXC_CCM_CCMR 0x00
+#define MXC_CCM_PDR0 0x04
+#define MXC_CCM_PDR1 0x08
+#define MX35_CCM_PDR2 0x0C
+#define MXC_CCM_RCSR 0x0C
+#define MX35_CCM_PDR3 0x10
+#define MXC_CCM_MPCTL 0x10
+#define MX35_CCM_PDR4 0x14
+#define MXC_CCM_UPCTL 0x14
+#define MX35_CCM_RCSR 0x18
+#define MXC_CCM_SRPCTL 0x18
+#define MX35_CCM_MPCTL 0x1C
+#define MXC_CCM_COSR 0x1C
+#define MX35_CCM_PPCTL 0x20
+#define MXC_CCM_CGR0 0x20
+#define MX35_CCM_ACMR 0x24
+#define MXC_CCM_CGR1 0x24
+#define MX35_CCM_COSR 0x28
+#define MXC_CCM_CGR2 0x28
+#define MX35_CCM_CGR0 0x2C
+#define MXC_CCM_WIMR 0x2C
+#define MX35_CCM_CGR1 0x30
+#define MXC_CCM_LDC 0x30
+#define MX35_CCM_CGR2 0x34
+#define MXC_CCM_DCVR0 0x34
+#define MX35_CCM_CGR3 0x38
+#define MXC_CCM_DCVR1 0x38
+#define MXC_CCM_DCVR2 0x3C
+#define MXC_CCM_DCVR3 0x40
+#define MXC_CCM_LTR0 0x44
+#define MXC_CCM_LTR1 0x48
+#define MXC_CCM_LTR2 0x4C
+#define MXC_CCM_LTR3 0x50
+#define MXC_CCM_LTBR0 0x54
+#define MXC_CCM_LTBR1 0x58
+#define MXC_CCM_PMCR0 0x5C
+#define MXC_CCM_PMCR1 0x60
+#define MXC_CCM_PDR2 0x64
/* Register bit definitions */
#define MXC_CCM_CCMR_WBEN (1 << 27)
diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c
index 7412738..57b39f8 100644
--- a/arch/arm/mach-imx/mm-imx3.c
+++ b/arch/arm/mach-imx/mm-imx3.c
@@ -31,6 +31,10 @@
#include <mach/iomux-v3.h>
#include <mach/irqs.h>
+#include "crmregs-imx3.h"
+
+void __iomem *mx3_ccm_base;
+
static void imx3_idle(void)
{
unsigned long reg = 0;
@@ -137,6 +141,7 @@ void __init imx31_init_early(void)
mxc_arch_reset_init(MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR));
arch_ioremap_caller = imx3_ioremap_caller;
arm_pm_idle = imx3_idle;
+ mx3_ccm_base = MX31_IO_ADDRESS(MX31_CCM_BASE_ADDR);
}
void __init mx31_init_irq(void)
@@ -210,6 +215,7 @@ void __init imx35_init_early(void)
mxc_arch_reset_init(MX35_IO_ADDRESS(MX35_WDOG_BASE_ADDR));
arm_pm_idle = imx3_idle;
arch_ioremap_caller = imx3_ioremap_caller;
+ mx3_ccm_base = MX35_IO_ADDRESS(MX35_CCM_BASE_ADDR);
}
void __init mx35_init_irq(void)
diff --git a/arch/arm/mach-imx/pm-imx3.c b/arch/arm/mach-imx/pm-imx3.c
index b375243..822103b 100644
--- a/arch/arm/mach-imx/pm-imx3.c
+++ b/arch/arm/mach-imx/pm-imx3.c
@@ -21,14 +21,14 @@
*/
void mx3_cpu_lp_set(enum mx3_cpu_pwr_mode mode)
{
- int reg = __raw_readl(MXC_CCM_CCMR);
+ int reg = __raw_readl(mx3_ccm_base + MXC_CCM_CCMR);
reg &= ~MXC_CCM_CCMR_LPM_MASK;
switch (mode) {
case MX3_WAIT:
if (cpu_is_mx35())
reg |= MXC_CCM_CCMR_LPM_WAIT_MX35;
- __raw_writel(reg, MXC_CCM_CCMR);
+ __raw_writel(reg, mx3_ccm_base + MXC_CCM_CCMR);
break;
default:
pr_err("Unknown cpu power mode: %d\n", mode);
--
1.7.9.5
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