diff options
| author | Sammy He <r62914@freescale.com> | 2010-11-17 00:39:08 +0800 |
|---|---|---|
| committer | Sammy He <r62914@freescale.com> | 2010-11-18 00:57:49 +0800 |
| commit | 7496154e2fdc3efccd5d5b8acf160082f1b95c2d (patch) | |
| tree | 0522cedde956e6c6d8aed4e1def5a9940eafb10e /cpu | |
| parent | 5c13c889739565b7a0409048ef4ac3eaedf3ff09 (diff) | |
ENGR00133551-1 Add freescale usb udc support for i.mx51 platform.
Add imx_udc for usb gadget on i.mx51 platform.
Signed-off-by: Hu Hui <b29976@freescale.com>
Signed-off-by: Sammy He <r62914@freescale.com>
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/arm_cortexa8/mx51/generic.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/cpu/arm_cortexa8/mx51/generic.c b/cpu/arm_cortexa8/mx51/generic.c index d85498861e..70136458a8 100644 --- a/cpu/arm_cortexa8/mx51/generic.c +++ b/cpu/arm_cortexa8/mx51/generic.c @@ -928,3 +928,55 @@ int arch_cpu_init(void) return 0; } #endif + +void set_usboh3_clk(void) +{ + unsigned int reg; + + reg = readl(MXC_CCM_CSCMR1); + reg |= 1 << 22; + writel(reg, MXC_CCM_CSCMR1); + reg = readl(MXC_CCM_CSCDR1); + reg &= ~MXC_CCM_CSCDR1_USBOH3_CLK_PODF_MASK; + reg &= ~MXC_CCM_CSCDR1_USBOH3_CLK_PRED_MASK; + reg |= 4 << MXC_CCM_CSCDR1_USBOH3_CLK_PRED_OFFSET; + reg |= 1 << MXC_CCM_CSCDR1_USBOH3_CLK_PODF_OFFSET; + + writel(reg, MXC_CCM_CSCDR1); +} + +void set_usb_phy1_clk(void) +{ + unsigned int reg; + + reg = readl(MXC_CCM_CSCMR1); + reg &= ~MXC_CCM_CSCMR1_USB_PHY_CLK_SEL; + writel(reg, MXC_CCM_CSCMR1); +} + +void enable_usboh3_clk(unsigned char enable) +{ + unsigned int reg; + + reg = readl(MXC_CCM_CCGR2); + if (enable) + reg |= 1 << 14; + else + reg &= ~(1 << 14); + writel(reg, MXC_CCM_CCGR2); +} + +void enable_usb_phy1_clk(unsigned char enable) +{ + + unsigned int reg; + + reg = readl(MXC_CCM_CCGR2); + + if (enable) + reg |= 1 << 0; + else + reg &= ~(1<<0); + writel(reg, MXC_CCM_CCGR2); +} + |