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authorIngo Molnar <mingo@elte.hu>2010-03-09 17:11:53 +0100
committerIngo Molnar <mingo@elte.hu>2010-03-09 17:11:53 +0100
commit548b84166917d6f5e2296123b85ad24aecd3801d (patch)
tree0ab0300e23a02df0fe3c0579627e4998bb122c00 /arch/arm/mach-ep93xx/clock.c
parentMAINTAINERS: Add Arnaldo as tools/perf/ co-maintainer (diff)
parentLinux 2.6.34-rc1 (diff)
downloadlinux-548b84166917d6f5e2296123b85ad24aecd3801d.tar.xz
linux-548b84166917d6f5e2296123b85ad24aecd3801d.zip
Merge commit 'v2.6.34-rc1' into perf/urgent
Conflicts: tools/perf/util/probe-event.c Merge reason: Pick up -rc1 and resolve the conflict as well. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mach-ep93xx/clock.c')
-rw-r--r--arch/arm/mach-ep93xx/clock.c32
1 files changed, 18 insertions, 14 deletions
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index 1d0f9d8aff2e..5f80092b6ace 100644
--- a/arch/arm/mach-ep93xx/clock.c
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -10,6 +10,8 @@
* your option) any later version.
*/
+#define pr_fmt(fmt) "ep93xx " KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/err.h>
@@ -445,37 +447,39 @@ static void __init ep93xx_dma_clock_init(void)
static int __init ep93xx_clock_init(void)
{
u32 value;
- int i;
- value = __raw_readl(EP93XX_SYSCON_CLOCK_SET1);
- if (!(value & 0x00800000)) { /* PLL1 bypassed? */
+ /* Determine the bootloader configured pll1 rate */
+ value = __raw_readl(EP93XX_SYSCON_CLKSET1);
+ if (!(value & EP93XX_SYSCON_CLKSET1_NBYP1))
clk_pll1.rate = clk_xtali.rate;
- } else {
+ else
clk_pll1.rate = calc_pll_rate(value);
- }
+
+ /* Initialize the pll1 derived clocks */
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? */
+ /* Determine the bootloader configured pll2 rate */
+ value = __raw_readl(EP93XX_SYSCON_CLKSET2);
+ if (!(value & EP93XX_SYSCON_CLKSET2_NBYP2))
clk_pll2.rate = clk_xtali.rate;
- } else if (value & 0x00040000) { /* PLL2 enabled? */
+ else if (value & EP93XX_SYSCON_CLKSET2_PLL2_EN)
clk_pll2.rate = calc_pll_rate(value);
- } else {
+ else
clk_pll2.rate = 0;
- }
+
+ /* Initialize the pll2 derived clocks */
clk_usb_host.rate = clk_pll2.rate / (((value >> 28) & 0xf) + 1);
- printk(KERN_INFO "ep93xx: PLL1 running at %ld MHz, PLL2 at %ld MHz\n",
+ pr_info("PLL1 running at %ld MHz, PLL2 at %ld MHz\n",
clk_pll1.rate / 1000000, clk_pll2.rate / 1000000);
- printk(KERN_INFO "ep93xx: FCLK %ld MHz, HCLK %ld MHz, PCLK %ld MHz\n",
+ pr_info("FCLK %ld MHz, HCLK %ld MHz, PCLK %ld MHz\n",
clk_f.rate / 1000000, clk_h.rate / 1000000,
clk_p.rate / 1000000);
- for (i = 0; i < ARRAY_SIZE(clocks); i++)
- clkdev_add(&clocks[i]);
+ clkdev_add_table(clocks, ARRAY_SIZE(clocks));
return 0;
}
arch_initcall(ep93xx_clock_init);