brcm63xx: add USB support to BCM6318

BCM6318 has a special initialization sequence which involves touching
PLL control registers in the USBH_PRIV register space, as well as
toggling a bit the Simulation control register.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 39302

1 files changed, 121 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/patches-3.10/347-MIPS-BCM6318-USB-support.patch b/target/linux/brcm63xx/patches-3.10/347-MIPS-BCM6318-USB-support.patch
new file mode 100644
index 0000000000..594348104b
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.10/347-MIPS-BCM6318-USB-support.patch
@@ -0,0 +1,121 @@
+--- a/arch/mips/bcm63xx/usb-common.c
++++ b/arch/mips/bcm63xx/usb-common.c
+@@ -109,6 +109,27 @@ void bcm63xx_usb_priv_ohci_cfg_set(void)
+ 		reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SETUP_6368_REG);
+ 		reg |= USBH_PRIV_SETUP_IOC_MASK;
+ 		bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SETUP_6368_REG);
++	} else if (BCMCPU_IS_6318()) {
++		reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_PLL_CTRL1_6318_REG);
++		reg |= USBH_PRIV_PLL_CTRL1_SUSP_EN;
++		bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_PLL_CTRL1_6318_REG);
++
++		reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SWAP_6318_REG);
++		reg &= ~USBH_PRIV_SWAP_OHCI_ENDN_MASK;
++		reg |= USBH_PRIV_SWAP_OHCI_DATA_MASK;
++		bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SWAP_6318_REG);
++
++		reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SETUP_6318_REG);
++		reg |= USBH_PRIV_SETUP_IOC_MASK;
++		bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SETUP_6318_REG);
++
++		reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_PLL_CTRL1_6318_REG);
++		reg &= ~USBH_PRIV_PLL_CTRL1_IDDQ_PWRDN;
++		bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_PLL_CTRL1_6318_REG);
++
++		reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SIM_CTRL_6318_REG);
++		reg |= USBH_PRIV_SIM_CTRL_LADDR_SEL;
++		bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SIM_CTRL_6318_REG);
+ 	}
+ 
+ 	spin_unlock_irqrestore(&usb_priv_reg_lock, flags);
+@@ -144,6 +165,27 @@ void bcm63xx_usb_priv_ehci_cfg_set(void)
+ 		reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SETUP_6368_REG);
+ 		reg |= USBH_PRIV_SETUP_IOC_MASK;
+ 		bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SETUP_6368_REG);
++	} else if (BCMCPU_IS_6318()) {
++		reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_PLL_CTRL1_6318_REG);
++		reg |= USBH_PRIV_PLL_CTRL1_SUSP_EN;
++		bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_PLL_CTRL1_6318_REG);
++
++		reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SWAP_6318_REG);
++		reg &= ~USBH_PRIV_SWAP_EHCI_ENDN_MASK;
++		reg |= USBH_PRIV_SWAP_EHCI_DATA_MASK;
++		bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SWAP_6318_REG);
++
++		reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SETUP_6318_REG);
++		reg |= USBH_PRIV_SETUP_IOC_MASK;
++		bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SETUP_6318_REG);
++
++		reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_PLL_CTRL1_6318_REG);
++		reg &= ~USBH_PRIV_PLL_CTRL1_IDDQ_PWRDN;
++		bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_PLL_CTRL1_6318_REG);
++
++		reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SIM_CTRL_6318_REG);
++		reg |= USBH_PRIV_SIM_CTRL_LADDR_SEL;
++		bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SIM_CTRL_6318_REG);
+ 	}
+ 
+ 	spin_unlock_irqrestore(&usb_priv_reg_lock, flags);
+--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+@@ -800,6 +800,12 @@
+ #define GPIO_MODE_6368_SPI_SSN4		(1 << 30)
+ #define GPIO_MODE_6368_SPI_SSN5		(1 << 31)
+ 
++#define GPIO_PINMUX_SEL0_6318		0x1c
++#define GPIO_PINMUX_SEL0_GPIO13_SHIFT	26
++#define GPIO_PINMUX_SEL0_GPIO13_MASK	(0x3 << GPIO_PINMUX_SEL0_GPIO13_SHIFT)
++#define GPIO_PINMUX_SEL0_GPIO13_PWRON	(1 << GPIO_PINMUX_SEL0_GPIO13_SHIFT)
++#define GPIO_PINMUX_SEL0_GPIO13_LED	(2 << GPIO_PINMUX_SEL0_GPIO13_SHIFT)
++#define GPIO_PINMUX_SEL0_GPIO13_GPIO	(3 << GPIO_PINMUX_SEL0_GPIO13_SHIFT)
+ 
+ #define GPIO_PINMUX_OTHR_REG		0x24
+ #define GPIO_PINMUX_OTHR_6328_USB_SHIFT 12
+@@ -1118,6 +1124,7 @@
+ 
+ #define USBH_PRIV_SWAP_6358_REG		0x0
+ #define USBH_PRIV_SWAP_6368_REG		0x1c
++#define USBH_PRIV_SWAP_6318_REG		0x0c
+ 
+ #define USBH_PRIV_SWAP_USBD_SHIFT	6
+ #define USBH_PRIV_SWAP_USBD_MASK	(1 << USBH_PRIV_SWAP_USBD_SHIFT)
+@@ -1143,6 +1150,13 @@
+ #define USBH_PRIV_SETUP_IOC_SHIFT	4
+ #define USBH_PRIV_SETUP_IOC_MASK	(1 << USBH_PRIV_SETUP_IOC_SHIFT)
+ 
++#define USBH_PRIV_SETUP_6318_REG	0x00
++#define USBH_PRIV_PLL_CTRL1_6318_REG	0x04
++#define USBH_PRIV_PLL_CTRL1_SUSP_EN	(1 << 27)
++#define USBH_PRIV_PLL_CTRL1_IDDQ_PWRDN	(1 << 31)
++#define USBH_PRIV_SIM_CTRL_6318_REG	0x20
++#define USBH_PRIV_SIM_CTRL_LADDR_SEL	(1 << 5)
++
+ 
+ /*************************************************************************
+  * _REG relative to RSET_USBD
+--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
++++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
+@@ -299,6 +299,7 @@ static struct board_info __initdata boar
+ 	.has_ohci0			= 1,
+ 	.has_pccard			= 1,
+ 	.has_ehci0			= 1,
++	.has_ehci0			= 1,
+ 
+ 	.has_dsp			= 1,
+ 	.dsp = {
+@@ -914,6 +915,15 @@ void __init board_prom_init(void)
+ 	}
+ 
+ 	bcm_gpio_writel(val, GPIO_MODE_REG);
++
++#if IS_ENABLED(CONFIG_USB)
++	if (BCMCPU_IS_6318() && (board.has_ehci0 || board.has_ohci0)) {
++		val = bcm_gpio_readl(GPIO_PINMUX_SEL0_6318);
++		val &= ~GPIO_PINMUX_SEL0_GPIO13_MASK;
++		val |= GPIO_PINMUX_SEL0_GPIO13_PWRON;
++		bcm_gpio_writel(val, GPIO_PINMUX_SEL0_6318);
++	}
++#endif
+ }
+ 
+ /*