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authorRoger Quadros <rogerq@ti.com>2016-05-23 17:37:49 +0300
committerTom Rini <trini@konsulko.com>2016-06-02 21:42:15 -0400
commit3599774eec9d06812c6124bcd0b34cebd7ec5e1c (patch)
tree475a278e6688afecece9a97d0d748f1c33d927b7 /arch/arm/cpu/armv7
parent55efadde7edee407a14c7cbf418c82b30a94faa8 (diff)
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dra7xx: Enable USB_PHY3 32KHz clock
DRA7xx has a 32KHz PHY clock for USB_PHY3 that must be enabled for USB1 instance in Super-Speed. Signed-off-by: Roger Quadros <rogerq@ti.com>
Diffstat (limited to 'arch/arm/cpu/armv7')
-rw-r--r--arch/arm/cpu/armv7/omap5/hw_data.c14
-rw-r--r--arch/arm/cpu/armv7/omap5/prcm-regs.c1
2 files changed, 13 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv7/omap5/hw_data.c b/arch/arm/cpu/armv7/omap5/hw_data.c
index 8734815..fe59c25 100644
--- a/arch/arm/cpu/armv7/omap5/hw_data.c
+++ b/arch/arm/cpu/armv7/omap5/hw_data.c
@@ -614,9 +614,14 @@ void enable_usb_clocks(int index)
setbits_le32((*prcm)->cm_l3init_usb_otg_ss1_clkctrl,
OPTFCLKEN_REFCLK960M);
- /* Enable 32 KHz clock for dwc3 */
+ /* Enable 32 KHz clock for USB_PHY1 */
setbits_le32((*prcm)->cm_coreaon_usb_phy1_core_clkctrl,
USBPHY_CORE_CLKCTRL_OPTFCLKEN_CLK32K);
+
+ /* Enable 32 KHz clock for USB_PHY3 */
+ if (is_dra7xx())
+ setbits_le32((*prcm)->cm_coreaon_usb_phy3_core_clkctrl,
+ USBPHY_CORE_CLKCTRL_OPTFCLKEN_CLK32K);
} else if (index == 1) {
cm_l3init_usb_otg_ss_clkctrl =
(*prcm)->cm_l3init_usb_otg_ss2_clkctrl;
@@ -664,9 +669,14 @@ void disable_usb_clocks(int index)
clrbits_le32((*prcm)->cm_l3init_usb_otg_ss1_clkctrl,
OPTFCLKEN_REFCLK960M);
- /* Disable 32 KHz clock for dwc3 */
+ /* Disable 32 KHz clock for USB_PHY1 */
clrbits_le32((*prcm)->cm_coreaon_usb_phy1_core_clkctrl,
USBPHY_CORE_CLKCTRL_OPTFCLKEN_CLK32K);
+
+ /* Disable 32 KHz clock for USB_PHY3 */
+ if (is_dra7xx())
+ clrbits_le32((*prcm)->cm_coreaon_usb_phy3_core_clkctrl,
+ USBPHY_CORE_CLKCTRL_OPTFCLKEN_CLK32K);
} else if (index == 1) {
cm_l3init_usb_otg_ss_clkctrl =
(*prcm)->cm_l3init_usb_otg_ss2_clkctrl;
diff --git a/arch/arm/cpu/armv7/omap5/prcm-regs.c b/arch/arm/cpu/armv7/omap5/prcm-regs.c
index 655e92b..b5f1d70 100644
--- a/arch/arm/cpu/armv7/omap5/prcm-regs.c
+++ b/arch/arm/cpu/armv7/omap5/prcm-regs.c
@@ -820,6 +820,7 @@ struct prcm_regs const dra7xx_prcm = {
.cm_clkmode_dpll_gmac = 0x4a0052a8,
.cm_coreaon_usb_phy1_core_clkctrl = 0x4a008640,
.cm_coreaon_usb_phy2_core_clkctrl = 0x4a008688,
+ .cm_coreaon_usb_phy3_core_clkctrl = 0x4a008698,
.cm_coreaon_l3init_60m_gfclk_clkctrl = 0x4a0086c0,
/* cm1.mpu */