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>
diff --git a/arch/mips/mach-ath79/reset.c b/arch/mips/mach-ath79/reset.c
index 33bf979..a5ee141 100644
--- a/arch/mips/mach-ath79/reset.c
+++ b/arch/mips/mach-ath79/reset.c
@@ -136,6 +136,23 @@
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 @@
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 @@
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 @@
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;
}