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authorHartley Sweeten <hartleys@visionengravers.com>2009-05-28 20:07:03 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-05-29 20:16:31 +0100
commit4070243250dd06a96d874b0be3cb3a39ef23597c (patch)
tree2f0aa74a7947fdbad842a76222a9f8255a2b5e9d
parent68ee3d83b238fa97e12775963f2b526c5dc74823 (diff)
[ARM] 5528/1: ep93xx: add defines for dma clock magic numbers
Update the dma clocks so that the magic numbers are named. All the dma clocks have an enable bit to turn them on/off as needed. Currently these bits are in the code as "magic" numbers. This changes all of them to named defines to improve code readability. Also, the EP93XX_SYSCON_CLOCK_CONTROL register is improperly named. In the EP93xx User's Guide this register is called PwrCnt (Power Control). All of the uses of this register are associated with the clock support so this patch also modifies the names to match the User's Guide. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/mach-ep93xx/clock.c52
-rw-r--r--arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h19
2 files changed, 42 insertions, 29 deletions
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index 29f36b458a0..209a465bd67 100644
--- a/arch/arm/mach-ep93xx/clock.c
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -37,58 +37,58 @@ static struct clk clk_h;
static struct clk clk_p;
static struct clk clk_pll2;
static struct clk clk_usb_host = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = EP93XX_SYSCON_CLOCK_USH_EN,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_USH_EN,
};
/* DMA Clocks */
static struct clk clk_m2p0 = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = 0x00020000,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_DMA_M2P0,
};
static struct clk clk_m2p1 = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = 0x00010000,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_DMA_M2P1,
};
static struct clk clk_m2p2 = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = 0x00080000,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_DMA_M2P2,
};
static struct clk clk_m2p3 = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = 0x00040000,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_DMA_M2P3,
};
static struct clk clk_m2p4 = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = 0x00200000,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_DMA_M2P4,
};
static struct clk clk_m2p5 = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = 0x00100000,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_DMA_M2P5,
};
static struct clk clk_m2p6 = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = 0x00800000,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_DMA_M2P6,
};
static struct clk clk_m2p7 = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = 0x00400000,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_DMA_M2P7,
};
static struct clk clk_m2p8 = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = 0x02000000,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_DMA_M2P8,
};
static struct clk clk_m2p9 = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = 0x01000000,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_DMA_M2P9,
};
static struct clk clk_m2m0 = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = 0x04000000,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_DMA_M2M0,
};
static struct clk clk_m2m1 = {
- .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
- .enable_mask = 0x08000000,
+ .enable_reg = EP93XX_SYSCON_PWRCNT,
+ .enable_mask = EP93XX_SYSCON_PWRCNT_DMA_M2M1,
};
#define INIT_CK(dev,con,ck) \
diff --git a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
index 78ac1bddc8b..ab73889e5e8 100644
--- a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
+++ b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
@@ -152,9 +152,22 @@
#define EP93XX_SYSCON_BASE (EP93XX_APB_VIRT_BASE + 0x00130000)
#define EP93XX_SYSCON_REG(x) (EP93XX_SYSCON_BASE + (x))
#define EP93XX_SYSCON_POWER_STATE EP93XX_SYSCON_REG(0x00)
-#define EP93XX_SYSCON_CLOCK_CONTROL EP93XX_SYSCON_REG(0x04)
-#define EP93XX_SYSCON_CLOCK_UARTBAUD 0x20000000
-#define EP93XX_SYSCON_CLOCK_USH_EN 0x10000000
+#define EP93XX_SYSCON_PWRCNT EP93XX_SYSCON_REG(0x04)
+#define EP93XX_SYSCON_PWRCNT_FIR_EN (1<<31)
+#define EP93XX_SYSCON_PWRCNT_UARTBAUD (1<<29)
+#define EP93XX_SYSCON_PWRCNT_USH_EN (1<<28)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2M1 (1<<27)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2M0 (1<<26)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P8 (1<<25)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P9 (1<<24)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P6 (1<<23)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P7 (1<<22)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P4 (1<<21)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P5 (1<<20)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P2 (1<<19)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P3 (1<<18)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P0 (1<<17)
+#define EP93XX_SYSCON_PWRCNT_DMA_M2P1 (1<<16)
#define EP93XX_SYSCON_HALT EP93XX_SYSCON_REG(0x08)
#define EP93XX_SYSCON_STANDBY EP93XX_SYSCON_REG(0x0c)
#define EP93XX_SYSCON_CLOCK_SET1 EP93XX_SYSCON_REG(0x20)