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Diffstat (limited to 'arch/arm/mach-mx1/clock.c')
-rw-r--r--arch/arm/mach-mx1/clock.c40
1 files changed, 8 insertions, 32 deletions
diff --git a/arch/arm/mach-mx1/clock.c b/arch/arm/mach-mx1/clock.c
index 4bcd1ece55f..0d0f306851d 100644
--- a/arch/arm/mach-mx1/clock.c
+++ b/arch/arm/mach-mx1/clock.c
@@ -25,6 +25,7 @@
#include <mach/clock.h>
#include <mach/hardware.h>
+#include <mach/common.h>
#include "crm_regs.h"
static int _clk_enable(struct clk *clk)
@@ -87,33 +88,6 @@ static int _clk_parent_set_rate(struct clk *clk, unsigned long rate)
return clk->parent->set_rate(clk->parent, rate);
}
-/*
- * get the system pll clock in Hz
- *
- * mfi + mfn / (mfd +1)
- * f = 2 * f_ref * --------------------
- * pd + 1
- */
-static unsigned long mx1_decode_pll(unsigned int pll, u32 f_ref)
-{
- unsigned long long ll;
- unsigned long quot;
-
- u32 mfi = (pll >> 10) & 0xf;
- u32 mfn = pll & 0x3ff;
- u32 mfd = (pll >> 16) & 0x3ff;
- u32 pd = (pll >> 26) & 0xf;
-
- mfi = mfi <= 5 ? 5 : mfi;
-
- ll = 2 * (unsigned long long)f_ref *
- ((mfi << 16) + (mfn << 16) / (mfd + 1));
- quot = (pd + 1) * (1 << 16);
- ll += quot / 2;
- do_div(ll, quot);
- return (unsigned long)ll;
-}
-
static unsigned long clk16m_get_rate(struct clk *clk)
{
return 16000000;
@@ -188,7 +162,7 @@ static struct clk prem_clk = {
static unsigned long system_clk_get_rate(struct clk *clk)
{
- return mx1_decode_pll(__raw_readl(CCM_SPCTL0),
+ return mxc_decode_pll(__raw_readl(CCM_SPCTL0),
clk_get_rate(clk->parent));
}
@@ -200,7 +174,7 @@ static struct clk system_clk = {
static unsigned long mcu_clk_get_rate(struct clk *clk)
{
- return mx1_decode_pll(__raw_readl(CCM_MPCTL0),
+ return mxc_decode_pll(__raw_readl(CCM_MPCTL0),
clk_get_rate(clk->parent));
}
@@ -488,7 +462,7 @@ static struct clk clko_clk = {
};
static struct clk dma_clk = {
- .name = "dma_clk",
+ .name = "dma",
.parent = &hclk,
.round_rate = _clk_parent_round_rate,
.set_rate = _clk_parent_set_rate,
@@ -539,7 +513,7 @@ static struct clk gpt_clk = {
};
static struct clk uart_clk = {
- .name = "uart_clk",
+ .name = "uart",
.parent = &perclk[0],
.round_rate = _clk_parent_round_rate,
.set_rate = _clk_parent_set_rate,
@@ -621,7 +595,7 @@ static struct clk *mxc_clks[] = {
&rtc_clk,
};
-int __init mxc_clocks_init(unsigned long fref)
+int __init mx1_clocks_init(unsigned long fref)
{
struct clk **clkp;
unsigned int reg;
@@ -652,5 +626,7 @@ int __init mxc_clocks_init(unsigned long fref)
clk_enable(&hclk);
clk_enable(&fclk);
+ mxc_timer_init(&gpt_clk);
+
return 0;
}