Hi Wolfgang,
On 08.02.2012 16:23, Wolfgang Grandegger wrote:
Currently, only USB Host 1 is supported.
Cc: Remy Bohmer linux@bohmer.net Signed-off-by: Wolfgang Grandegger wg@denx.de
arch/arm/cpu/armv7/mx6/clock.c | 13 ++ arch/arm/include/asm/arch-mx6/imx-regs.h | 3 + drivers/usb/host/Makefile | 1 + drivers/usb/host/ehci-mx6.c | 205 ++++++++++++++++++++++++++++++ 4 files changed, 222 insertions(+), 0 deletions(-) create mode 100644 drivers/usb/host/ehci-mx6.c
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index fa3a124..ef98563 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -36,6 +36,19 @@ enum pll_clocks {
struct imx_ccm_reg *imx_ccm = (struct imx_ccm_reg *)CCM_BASE_ADDR;
+void enable_usboh3_clk(unsigned char enable) +{
- u32 reg;
- reg = __raw_readl(&imx_ccm->CCGR6);
- if (enable)
reg |= MXC_CCM_CCGR_CG_MASK << MXC_CCM_CCGR0_CG0_OFFSET;- else
reg &= ~(MXC_CCM_CCGR_CG_MASK << MXC_CCM_CCGR0_CG0_OFFSET);- __raw_writel(reg, &imx_ccm->CCGR6);
+}
static u32 decode_pll(enum pll_clocks pll, u32 infreq) { u32 div;
...
diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c new file mode 100644 index 0000000..b7bf49d --- /dev/null +++ b/drivers/usb/host/ehci-mx6.c
...
+int ehci_hcd_init(void) +{
- struct usb_ehci *ehci;
- enable_usboh3_clk(1);
ehci-mx6.c: In function 'ehci_hcd_init': ehci-mx6.c:171: warning: implicit declaration of function 'enable_usboh3_clk'
Best regards
Dirk