[U-Boot] [PATCH 3/6] am33xx: CPSW init and definitions

[Ilya Yanok]

This patch adds platform-specific initialization for CPSW
switch on TI AM33XX SoCs.

CC: Tom Rini <trini at ti.com>
Signed-off-by: Ilya Yanok <ilya.yanok at cogentembedded.com>
---
 arch/arm/cpu/armv7/am33xx/clock.c           |    8 +++++++-
 arch/arm/include/asm/arch-am33xx/cpu.h      |   12 ++++++++++++
 arch/arm/include/asm/arch-am33xx/hardware.h |    5 +++++
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/arch/arm/cpu/armv7/am33xx/clock.c b/arch/arm/cpu/armv7/am33xx/clock.c
index bbb9c13..3cfdcbd 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;
@@ -118,6 +119,11 @@ static void enable_per_clocks(void)
 	writel(PRCM_MOD_EN, &cmwkup->wkup_i2c0ctrl);
 	while (readl(&cmwkup->wkup_i2c0ctrl) != 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 5a6534e..1b41b10 100644
--- a/arch/arm/include/asm/arch-am33xx/cpu.h
+++ b/arch/arm/include/asm/arch-am33xx/cpu.h
@@ -233,6 +233,18 @@ struct ctrl_stat {
 	unsigned int resv1[16];
 	unsigned int statusreg;		/* ofset 0x40 */
 };
+
+/* 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 */
-- 
1.7.9.5