diff options
| author | Wills Wang <wills.wang@live.com> | 2016-05-30 22:54:53 +0800 |
|---|---|---|
| committer | Daniel Schwierzeck <daniel.schwierzeck@gmail.com> | 2016-05-31 10:17:54 +0200 |
| commit | cdeb68e292358f9dedeaea167f6eba894c58823e (patch) | |
| tree | 6c622182e2867d6671145afdc5b000cf22b45902 /arch | |
| parent | ad5b48abfe7729d7e0eefcea8693d879af9915b7 (diff) | |
| download | blackbird-obmc-uboot-cdeb68e292358f9dedeaea167f6eba894c58823e.tar.gz blackbird-obmc-uboot-cdeb68e292358f9dedeaea167f6eba894c58823e.zip | |
mips: ath79: Add support for ungating USB and ethernet on qca953x
Add code to ungate USB and ethernet controller on qca953x
Signed-off-by: Wills Wang <wills.wang@live.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/mach-ath79/reset.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/mips/mach-ath79/reset.c b/arch/mips/mach-ath79/reset.c index 33bf979ce0..a5ee14156c 100644 --- a/arch/mips/mach-ath79/reset.c +++ b/arch/mips/mach-ath79/reset.c @@ -136,6 +136,23 @@ static int eth_init_ar934x(void) return 0; } +static int eth_init_qca953x(void) +{ + void __iomem *rregs = map_physmem(AR71XX_RESET_BASE, AR71XX_RESET_SIZE, + MAP_NOCACHE); + const u32 mask = QCA953X_RESET_GE0_MAC | QCA953X_RESET_GE0_MDIO | + QCA953X_RESET_GE1_MAC | QCA953X_RESET_GE1_MDIO | + QCA953X_RESET_ETH_SWITCH_ANALOG | + QCA953X_RESET_ETH_SWITCH; + + setbits_be32(rregs + AR934X_RESET_REG_RESET_MODULE, mask); + mdelay(1); + clrbits_be32(rregs + AR934X_RESET_REG_RESET_MODULE, mask); + mdelay(1); + + return 0; +} + int ath79_eth_reset(void) { /* @@ -146,6 +163,8 @@ int ath79_eth_reset(void) return eth_init_ar933x(); if (soc_is_ar934x()) return eth_init_ar934x(); + if (soc_is_qca953x()) + return eth_init_qca953x(); return -EINVAL; } @@ -185,6 +204,35 @@ static int usb_reset_ar934x(void __iomem *reset_regs) return 0; } +static int usb_reset_qca953x(void __iomem *reset_regs) +{ + void __iomem *pregs = map_physmem(AR71XX_PLL_BASE, AR71XX_PLL_SIZE, + MAP_NOCACHE); + + clrsetbits_be32(pregs + QCA953X_PLL_SWITCH_CLOCK_CONTROL_REG, + 0xf00, 0x200); + mdelay(10); + + /* Ungate the USB block */ + setbits_be32(reset_regs + QCA953X_RESET_REG_RESET_MODULE, + QCA953X_RESET_USBSUS_OVERRIDE); + mdelay(1); + clrbits_be32(reset_regs + QCA953X_RESET_REG_RESET_MODULE, + QCA953X_RESET_USB_PHY); + mdelay(1); + clrbits_be32(reset_regs + QCA953X_RESET_REG_RESET_MODULE, + QCA953X_RESET_USB_PHY_ANALOG); + mdelay(1); + clrbits_be32(reset_regs + QCA953X_RESET_REG_RESET_MODULE, + QCA953X_RESET_USB_HOST); + mdelay(1); + clrbits_be32(reset_regs + QCA953X_RESET_REG_RESET_MODULE, + QCA953X_RESET_USB_PHY_PLL_PWD_EXT); + mdelay(1); + + return 0; +} + int ath79_usb_reset(void) { void __iomem *usbc_regs = map_physmem(AR71XX_USB_CTRL_BASE, @@ -204,6 +252,8 @@ int ath79_usb_reset(void) return usb_reset_ar933x(reset_regs); if (soc_is_ar934x()) return usb_reset_ar934x(reset_regs); + if (soc_is_qca953x()) + return usb_reset_qca953x(reset_regs); return -EINVAL; } |
