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authorSascha Hauer <s.hauer@pengutronix.de>2009-03-17 15:43:54 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2009-08-14 12:40:57 +0200
commit547270a3b9f2deb9590b65e8fc351e5399ddf15d (patch)
tree5ff04d4f36010f3a82d116d8d4d8c51777be022b /arch/arm/mach-mx3
parentMX31: add spi controller devices/resources (diff)
downloadlinux-547270a3b9f2deb9590b65e8fc351e5399ddf15d.tar.xz
linux-547270a3b9f2deb9590b65e8fc351e5399ddf15d.zip
i.MX35 clock support: Add USB clocks
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mx3')
-rw-r--r--arch/arm/mach-mx3/clock-imx35.c20
1 files changed, 18 insertions, 2 deletions
diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c
index 1dbcdc07257e..fe5c4217322e 100644
--- a/arch/arm/mach-mx3/clock-imx35.c
+++ b/arch/arm/mach-mx3/clock-imx35.c
@@ -273,6 +273,19 @@ static unsigned long get_rate_csi(struct clk *clk)
return rate / get_3_3_div((pdr2 >> 16) & 0x3f);
}
+static unsigned long get_rate_otg(struct clk *clk)
+{
+ unsigned long pdr4 = __raw_readl(CCM_BASE + CCM_PDR4);
+ unsigned long rate;
+
+ if (pdr4 & (1 << 9))
+ rate = get_rate_arm();
+ else
+ rate = get_rate_ppll();
+
+ return rate / get_3_3_div((pdr4 >> 22) & 0x3f);
+}
+
static unsigned long get_rate_ipg_per(struct clk *clk)
{
unsigned long pdr0 = __raw_readl(CCM_BASE + CCM_PDR0);
@@ -365,7 +378,7 @@ DEFINE_CLOCK(ssi2_clk, 1, CCM_CGR2, 14, get_rate_ssi, NULL);
DEFINE_CLOCK(uart1_clk, 0, CCM_CGR2, 16, get_rate_uart, NULL);
DEFINE_CLOCK(uart2_clk, 1, CCM_CGR2, 18, get_rate_uart, NULL);
DEFINE_CLOCK(uart3_clk, 2, CCM_CGR2, 20, get_rate_uart, NULL);
-DEFINE_CLOCK(usbotg_clk, 0, CCM_CGR2, 22, NULL, NULL);
+DEFINE_CLOCK(usbotg_clk, 0, CCM_CGR2, 22, get_rate_otg, NULL);
DEFINE_CLOCK(wdog_clk, 0, CCM_CGR2, 24, NULL, NULL);
DEFINE_CLOCK(max_clk, 0, CCM_CGR2, 26, NULL, NULL);
DEFINE_CLOCK(admux_clk, 0, CCM_CGR2, 30, NULL, NULL);
@@ -426,7 +439,10 @@ static struct clk_lookup lookups[] = {
_REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk)
_REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk)
_REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk)
- _REGISTER_CLOCK(NULL, "usbotg", usbotg_clk)
+ _REGISTER_CLOCK("mxc-ehci.0", "usb", usbotg_clk)
+ _REGISTER_CLOCK("mxc-ehci.1", "usb", usbotg_clk)
+ _REGISTER_CLOCK("mxc-ehci.2", "usb", usbotg_clk)
+ _REGISTER_CLOCK("fsl-usb2-udc", "usb", usbotg_clk)
_REGISTER_CLOCK("mxc_wdt.0", NULL, wdog_clk)
_REGISTER_CLOCK(NULL, "max", max_clk)
_REGISTER_CLOCK(NULL, "admux", admux_clk)