[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>

1 files changed, 79 insertions, 0 deletions

diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index 96049283a10a..e8ebeaea6c48 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?  */