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path: root/arch/arm/mach-exynos/setup-usb-phy.c
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Diffstat (limited to 'arch/arm/mach-exynos/setup-usb-phy.c')
-rw-r--r--arch/arm/mach-exynos/setup-usb-phy.c60
1 files changed, 44 insertions, 16 deletions
diff --git a/arch/arm/mach-exynos/setup-usb-phy.c b/arch/arm/mach-exynos/setup-usb-phy.c
index 1af0a7f..b81cc56 100644
--- a/arch/arm/mach-exynos/setup-usb-phy.c
+++ b/arch/arm/mach-exynos/setup-usb-phy.c
@@ -31,27 +31,55 @@ static void exynos4210_usb_phy_clkset(struct platform_device *pdev)
struct clk *xusbxti_clk;
u32 phyclk;
- /* set clock frequency for PLL */
- phyclk = readl(EXYNOS4_PHYCLK) & ~CLKSEL_MASK;
-
xusbxti_clk = clk_get(&pdev->dev, "xusbxti");
if (xusbxti_clk && !IS_ERR(xusbxti_clk)) {
- switch (clk_get_rate(xusbxti_clk)) {
- case 12 * MHZ:
- phyclk |= CLKSEL_12M;
- break;
- case 24 * MHZ:
- phyclk |= CLKSEL_24M;
- break;
- default:
- case 48 * MHZ:
- /* default reference clock */
- break;
+ if (soc_is_exynos4210()) {
+ /* set clock frequency for PLL */
+ phyclk = readl(EXYNOS4_PHYCLK) & ~EXYNOS4210_CLKSEL_MASK;
+
+ switch (clk_get_rate(xusbxti_clk)) {
+ case 12 * MHZ:
+ phyclk |= EXYNOS4210_CLKSEL_12M;
+ break;
+ case 48 * MHZ:
+ phyclk |= EXYNOS4210_CLKSEL_48M;
+ break;
+ default:
+ case 24 * MHZ:
+ phyclk |= EXYNOS4210_CLKSEL_24M;
+ break;
+ }
+ writel(phyclk, EXYNOS4_PHYCLK);
+ } else if (soc_is_exynos4212() || soc_is_exynos4412()) {
+ /* set clock frequency for PLL */
+ phyclk = readl(EXYNOS4_PHYCLK) & ~EXYNOS4X12_CLKSEL_MASK;
+
+ switch (clk_get_rate(xusbxti_clk)) {
+ case 9600 * KHZ:
+ phyclk |= EXYNOS4X12_CLKSEL_9600K;
+ break;
+ case 10 * MHZ:
+ phyclk |= EXYNOS4X12_CLKSEL_10M;
+ break;
+ case 12 * MHZ:
+ phyclk |= EXYNOS4X12_CLKSEL_12M;
+ break;
+ case 19200 * KHZ:
+ phyclk |= EXYNOS4X12_CLKSEL_19200K;
+ break;
+ case 20 * MHZ:
+ phyclk |= EXYNOS4X12_CLKSEL_20M;
+ break;
+ default:
+ case 24 * MHZ:
+ /* default reference clock */
+ phyclk |= EXYNOS4X12_CLKSEL_24M;
+ break;
+ }
+ writel(phyclk, EXYNOS4_PHYCLK);
}
clk_put(xusbxti_clk);
}
-
- writel(phyclk, EXYNOS4_PHYCLK);
}
static int exynos4210_usb_phy0_init(struct platform_device *pdev)