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authorwanzongshun <mcuos.com@gmail.com>2009-07-14 15:10:43 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-07-17 13:38:17 +0100
commitdb58e90fdbe9d12b431ae8d8e856961ce75d74f0 (patch)
tree3367a0abc6e955ecb16cbc8f33873a015b70230c /arch/arm
parentd2c241955095b129459985a8c02d85b70984b945 (diff)
[ARM] 5602/1: Add sub clock api for w90p910 platform
Add sub clock api for w90p910 platform. Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-w90x900/clock.c18
-rw-r--r--arch/arm/mach-w90x900/clock.h8
-rw-r--r--arch/arm/mach-w90x900/w90p910.c6
3 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/mach-w90x900/clock.c b/arch/arm/mach-w90x900/clock.c
index f420613cd39..49cf1fbc14e 100644
--- a/arch/arm/mach-w90x900/clock.c
+++ b/arch/arm/mach-w90x900/clock.c
@@ -25,6 +25,8 @@
#include "clock.h"
+#define SUBCLK 0x24
+
static DEFINE_SPINLOCK(clocks_lock);
int clk_enable(struct clk *clk)
@@ -68,6 +70,22 @@ void w90x900_clk_enable(struct clk *clk, int enable)
__raw_writel(clken, W90X900_VA_CLKPWR);
}
+void w90x900_subclk_enable(struct clk *clk, int enable)
+{
+ unsigned int clocks = clk->cken;
+ unsigned long clken;
+
+ clken = __raw_readl(W90X900_VA_CLKPWR + SUBCLK);
+
+ if (enable)
+ clken |= clocks;
+ else
+ clken &= ~clocks;
+
+ __raw_writel(clken, W90X900_VA_CLKPWR + SUBCLK);
+}
+
+
void clks_register(struct clk_lookup *clks, size_t num)
{
int i;
diff --git a/arch/arm/mach-w90x900/clock.h b/arch/arm/mach-w90x900/clock.h
index 4f27bda76d5..d2f0e50a70b 100644
--- a/arch/arm/mach-w90x900/clock.h
+++ b/arch/arm/mach-w90x900/clock.h
@@ -13,6 +13,7 @@
#include <asm/clkdev.h>
void w90x900_clk_enable(struct clk *clk, int enable);
+void w90x900_subclk_enable(struct clk *clk, int enable);
void clks_register(struct clk_lookup *clks, size_t num);
struct clk {
@@ -27,6 +28,13 @@ struct clk clk_##_name = { \
.cken = (1 << _ctrlbit), \
}
+#define DEFINE_SUBCLK(_name, _ctrlbit) \
+struct clk clk_##_name = { \
+ .enable = w90x900_subclk_enable, \
+ .cken = (1 << _ctrlbit), \
+ }
+
+
#define DEF_CLKLOOK(_clk, _devname, _conname) \
{ \
.clk = _clk, \
diff --git a/arch/arm/mach-w90x900/w90p910.c b/arch/arm/mach-w90x900/w90p910.c
index 1c97e4930b7..1bde69eac3d 100644
--- a/arch/arm/mach-w90x900/w90p910.c
+++ b/arch/arm/mach-w90x900/w90p910.c
@@ -57,9 +57,12 @@ static struct map_desc w90p910_iodesc[] __initdata = {
static DEFINE_CLK(lcd, 0);
static DEFINE_CLK(audio, 1);
static DEFINE_CLK(fmi, 4);
+static DEFINE_SUBCLK(ms, 0);
+static DEFINE_SUBCLK(sd, 1);
static DEFINE_CLK(dmac, 5);
static DEFINE_CLK(atapi, 6);
static DEFINE_CLK(emc, 7);
+static DEFINE_SUBCLK(rmii, 2);
static DEFINE_CLK(usbd, 8);
static DEFINE_CLK(usbh, 9);
static DEFINE_CLK(g2d, 10);;
@@ -75,9 +78,12 @@ static struct clk_lookup w90p910_clkregs[] = {
DEF_CLKLOOK(&clk_lcd, "w90p910-lcd", NULL),
DEF_CLKLOOK(&clk_audio, "w90p910-audio", NULL),
DEF_CLKLOOK(&clk_fmi, "w90p910-fmi", NULL),
+ DEF_CLKLOOK(&clk_ms, "w90p910-fmi", "MS"),
+ DEF_CLKLOOK(&clk_sd, "w90p910-fmi", "SD"),
DEF_CLKLOOK(&clk_dmac, "w90p910-dmac", NULL),
DEF_CLKLOOK(&clk_atapi, "w90p910-atapi", NULL),
DEF_CLKLOOK(&clk_emc, "w90p910-emc", NULL),
+ DEF_CLKLOOK(&clk_rmii, "w90p910-emc", "RMII"),
DEF_CLKLOOK(&clk_usbd, "w90p910-usbd", NULL),
DEF_CLKLOOK(&clk_usbh, "w90p910-usbh", NULL),
DEF_CLKLOOK(&clk_g2d, "w90p910-g2d", NULL),