From: Chandan Nath chandan.nath@ti.com
This patch adds platform-specific initialization for CPSW switch on TI AM33XX SoCs.
Signed-off-by: Chandan Nath chandan.nath@ti.com [Ilya: split init out of original patch] Signed-off-by: Ilya Yanok ilya.yanok@cogentembedded.com
--- Changes in v3: - fix whitespace problem
arch/arm/cpu/armv7/am33xx/clock.c | 8 +++++++- arch/arm/include/asm/arch-am33xx/cpu.h | 11 +++++++++++ arch/arm/include/asm/arch-am33xx/hardware.h | 5 +++++ 3 files changed, 23 insertions(+), 1 deletion(-)
diff --git a/arch/arm/cpu/armv7/am33xx/clock.c b/arch/arm/cpu/armv7/am33xx/clock.c index 16beb4f..e3c4fd8 100644 --- a/arch/arm/cpu/armv7/am33xx/clock.c +++ b/arch/arm/cpu/armv7/am33xx/clock.c @@ -24,6 +24,7 @@
#define PRCM_MOD_EN 0x2 #define PRCM_FORCE_WAKEUP 0x2 +#define PRCM_FUNCTL 0x0
#define PRCM_EMIF_CLK_ACTIVITY BIT(2) #define PRCM_L3_GCLK_ACTIVITY BIT(4) @@ -38,7 +39,7 @@ #define CLK_MODE_SEL 0x7 #define CLK_MODE_MASK 0xfffffff8 #define CLK_DIV_SEL 0xFFFFFFE0 - +#define CPGMAC0_IDLE 0x30000
const struct cm_perpll *cmper = (struct cm_perpll *)CM_PER; const struct cm_wkuppll *cmwkup = (struct cm_wkuppll *)CM_WKUP; @@ -138,6 +139,11 @@ static void enable_per_clocks(void) writel(PRCM_MOD_EN, &cmper->i2c1clkctrl); while (readl(&cmper->i2c1clkctrl) != PRCM_MOD_EN) ; + + /* Ethernet */ + writel(PRCM_MOD_EN, &cmper->cpgmac0clkctrl); + while ((readl(&cmper->cpgmac0clkctrl) & CPGMAC0_IDLE) != PRCM_FUNCTL) + ; }
static void mpu_pll_config(void) diff --git a/arch/arm/include/asm/arch-am33xx/cpu.h b/arch/arm/include/asm/arch-am33xx/cpu.h index e63ab74..de9ee91 100644 --- a/arch/arm/include/asm/arch-am33xx/cpu.h +++ b/arch/arm/include/asm/arch-am33xx/cpu.h @@ -255,6 +255,17 @@ struct ctrl_stat { #define OMAP_GPIO_CLEARDATAOUT 0x0190 #define OMAP_GPIO_SETDATAOUT 0x0194
+/* Control Device Register */ +struct ctrl_dev { + unsigned int deviceid; /* offset 0x00 */ + unsigned int resv1[11]; + unsigned int macid0l; /* offset 0x30 */ + unsigned int macid0h; /* offset 0x34 */ + unsigned int macid1l; /* offset 0x38 */ + unsigned int macid1h; /* offset 0x3c */ + unsigned int resv2[4]; + unsigned int miisel; /* offset 0x50 */ +}; #endif /* __ASSEMBLY__ */ #endif /* __KERNEL_STRICT_NAMES */
diff --git a/arch/arm/include/asm/arch-am33xx/hardware.h b/arch/arm/include/asm/arch-am33xx/hardware.h index 0ec22eb..4b1c725 100644 --- a/arch/arm/include/asm/arch-am33xx/hardware.h +++ b/arch/arm/include/asm/arch-am33xx/hardware.h @@ -46,6 +46,7 @@
/* Control Module Base Address */ #define CTRL_BASE 0x44E10000 +#define CTRL_DEVICE_BASE 0x44E10600
/* PRCM Base Address */ #define PRCM_BASE 0x44E00000 @@ -78,4 +79,8 @@ #define DDRPHY_0_CONFIG_BASE (CTRL_BASE + 0x1400) #define DDRPHY_CONFIG_BASE DDRPHY_0_CONFIG_BASE
+/* CPSW Config space */ +#define AM335X_CPSW_BASE 0x4A100000 +#define AM335X_CPSW_MDIO_BASE 0x4A101000 + #endif /* __AM33XX_HARDWARE_H */