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authorRyan Mallon <ryan@bluewatersys.com>2009-02-25 22:22:38 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-02-27 20:57:48 +0000
commit1c8daabe1dafc30fcc1d929e620269ffe99b6f8a (patch)
tree3071003264d125385b658bc2826770a7ac6c941f /arch/arm/mach-ep93xx
parentc633c3cfcf41efe720020553aa3d4782fa0b9bd5 (diff)
[ARM] 5413/1: Add ep93xx dma m2p clocks
Add the clocks for ep93xx m2p dma engine. Signed-off-by: Ryan Mallon <ryan@bluewatersys.com> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-ep93xx')
-rw-r--r--arch/arm/mach-ep93xx/clock.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index 96049283a10..e8ebeaea6c4 100644
--- a/arch/arm/mach-ep93xx/clock.c
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -41,6 +41,56 @@ static struct clk clk_usb_host = {
.enable_mask = EP93XX_SYSCON_CLOCK_USH_EN,
};
+/* DMA Clocks */
+static struct clk clk_m2p0 = {
+ .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
+ .enable_mask = 0x00020000,
+};
+static struct clk clk_m2p1 = {
+ .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
+ .enable_mask = 0x00010000,
+};
+static struct clk clk_m2p2 = {
+ .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
+ .enable_mask = 0x00080000,
+};
+static struct clk clk_m2p3 = {
+ .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
+ .enable_mask = 0x00040000,
+};
+static struct clk clk_m2p4 = {
+ .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
+ .enable_mask = 0x00200000,
+};
+static struct clk clk_m2p5 = {
+ .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
+ .enable_mask = 0x00100000,
+};
+static struct clk clk_m2p6 = {
+ .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
+ .enable_mask = 0x00800000,
+};
+static struct clk clk_m2p7 = {
+ .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
+ .enable_mask = 0x00400000,
+};
+static struct clk clk_m2p8 = {
+ .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
+ .enable_mask = 0x02000000,
+};
+static struct clk clk_m2p9 = {
+ .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
+ .enable_mask = 0x01000000,
+};
+static struct clk clk_m2m0 = {
+ .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
+ .enable_mask = 0x04000000,
+};
+static struct clk clk_m2m1 = {
+ .enable_reg = EP93XX_SYSCON_CLOCK_CONTROL,
+ .enable_mask = 0x08000000,
+};
+
#define INIT_CK(dev,con,ck) \
{ .dev_id = dev, .con_id = con, .clk = ck }
@@ -54,6 +104,18 @@ static struct clk_lookup clocks[] = {
INIT_CK(NULL, "pclk", &clk_p),
INIT_CK(NULL, "pll2", &clk_pll2),
INIT_CK(NULL, "usb_host", &clk_usb_host),
+ INIT_CK(NULL, "m2p0", &clk_m2p0),
+ INIT_CK(NULL, "m2p1", &clk_m2p1),
+ INIT_CK(NULL, "m2p2", &clk_m2p2),
+ INIT_CK(NULL, "m2p3", &clk_m2p3),
+ INIT_CK(NULL, "m2p4", &clk_m2p4),
+ INIT_CK(NULL, "m2p5", &clk_m2p5),
+ INIT_CK(NULL, "m2p6", &clk_m2p6),
+ INIT_CK(NULL, "m2p7", &clk_m2p7),
+ INIT_CK(NULL, "m2p8", &clk_m2p8),
+ INIT_CK(NULL, "m2p9", &clk_m2p9),
+ INIT_CK(NULL, "m2m0", &clk_m2m0),
+ INIT_CK(NULL, "m2m1", &clk_m2m1),
};
@@ -110,6 +172,22 @@ static unsigned long calc_pll_rate(u32 config_word)
return (unsigned long)rate;
}
+static void __init ep93xx_dma_clock_init(void)
+{
+ clk_m2p0.rate = clk_h.rate;
+ clk_m2p1.rate = clk_h.rate;
+ clk_m2p2.rate = clk_h.rate;
+ clk_m2p3.rate = clk_h.rate;
+ clk_m2p4.rate = clk_h.rate;
+ clk_m2p5.rate = clk_h.rate;
+ clk_m2p6.rate = clk_h.rate;
+ clk_m2p7.rate = clk_h.rate;
+ clk_m2p8.rate = clk_h.rate;
+ clk_m2p9.rate = clk_h.rate;
+ clk_m2m0.rate = clk_h.rate;
+ clk_m2m1.rate = clk_h.rate;
+}
+
static int __init ep93xx_clock_init(void)
{
u32 value;
@@ -124,6 +202,7 @@ static int __init ep93xx_clock_init(void)
clk_f.rate = clk_pll1.rate / fclk_divisors[(value >> 25) & 0x7];
clk_h.rate = clk_pll1.rate / hclk_divisors[(value >> 20) & 0x7];
clk_p.rate = clk_h.rate / pclk_divisors[(value >> 18) & 0x3];
+ ep93xx_dma_clock_init();
value = __raw_readl(EP93XX_SYSCON_CLOCK_SET2);
if (!(value & 0x00080000)) { /* PLL2 bypassed? */