stv0991: enable ethernet support

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>

4 files changed, 72 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-stv0991/gpio.h b/arch/arm/include/asm/arch-stv0991/gpio.h
new file mode 100644
index 0000000000..9131ded5eb
--- /dev/null
+++ b/arch/arm/include/asm/arch-stv0991/gpio.h
@@ -0,0 +1,22 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, ST Micoelectronics, vikas.manocha@st.com
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARCH_STV0991_GPIO_H
+#define __ASM_ARCH_STV0991_GPIO_H
+
+enum gpio_direction {
+	GPIO_DIRECTION_IN,
+	GPIO_DIRECTION_OUT,
+};
+
+struct gpio_regs {
+	u32 data;		/* offset 0x0 */
+	u32 reserved[0xff];	/* 0x4--0x3fc */
+	u32 dir;		/* offset 0x400 */
+};
+
+#endif	/* __ASM_ARCH_STV0991_GPIO_H */
diff --git a/arch/arm/include/asm/arch-stv0991/stv0991_cgu.h b/arch/arm/include/asm/arch-stv0991/stv0991_cgu.h
index 4926395622..ddcbb57a92 100644
--- a/arch/arm/include/asm/arch-stv0991/stv0991_cgu.h
+++ b/arch/arm/include/asm/arch-stv0991/stv0991_cgu.h
@@ -77,4 +77,40 @@ struct stv0991_cgu_regs {
 #define UART_CLK_CFG			(4 << DIV_SHIFT_UART \
 					| 1 << MDIV_SHIFT_UART | CLK_UART_MCLK)
 
+/* CGU Ethernet clock config */
+#define CLK_ETH_MCLK			0
+#define CLK_ETH_PLL1			1
+#define CLK_ETH_PLL2			2
+
+#define MDIV_SHIFT_ETH			3
+#define DIV_SHIFT_ETH			6
+#define DIV_ETH_125			9
+#define DIV_ETH_50			12
+#define DIV_ETH_P2P			15
+
+#define ETH_CLK_CFG			(4 << DIV_ETH_P2P | 4 << DIV_ETH_50 \
+					| 1 << DIV_ETH_125 \
+					| 0 << DIV_SHIFT_ETH \
+					| 3 << MDIV_SHIFT_ETH | CLK_ETH_PLL1)
+ /* CGU Ethernet control */
+
+#define ETH_CLK_TX_EXT_PHY		0
+#define ETH_CLK_TX_125M			1
+#define ETH_CLK_TX_25M			2
+#define ETH_CLK_TX_2M5			3
+#define ETH_CLK_TX_DIS			7
+
+#define ETH_CLK_RX_EXT_PHY		0
+#define ETH_CLK_RX_25M			1
+#define ETH_CLK_RX_2M5			2
+#define ETH_CLK_RX_DIS			3
+#define RX_CLK_SHIFT			3
+#define ETH_CLK_MASK			~(0x1F)
+
+#define ETH_PHY_MODE_GMII		0
+#define ETH_PHY_MODE_RMII		1
+#define ETH_PHY_CLK_DIS			1
+
+#define ETH_CLK_CTRL			(ETH_CLK_RX_EXT_PHY << RX_CLK_SHIFT \
+					| ETH_CLK_TX_EXT_PHY)
 #endif
diff --git a/arch/arm/include/asm/arch-stv0991/stv0991_creg.h b/arch/arm/include/asm/arch-stv0991/stv0991_creg.h
index 045dbfe472..c804eb5e4c 100644
--- a/arch/arm/include/asm/arch-stv0991/stv0991_creg.h
+++ b/arch/arm/include/asm/arch-stv0991/stv0991_creg.h
@@ -79,4 +79,17 @@ struct stv0991_creg {
 #define CFG_GPIOC_30_MODE_LOW	(0 << GPIOC_30_MODE_SHIFT)
 #define CFG_GPIOC_30_MODE_HIGH	(1 << GPIOC_30_MODE_SHIFT)
 
+/* CREG Ethernet pad config */
+
+#define VDD_ETH_PS_1V8		0
+#define VDD_ETH_PS_2V5		2
+#define VDD_ETH_PS_3V3		3
+#define VDD_ETH_PS_MASK		0x3
+
+#define VDD_ETH_PS_SHIFT	12
+#define ETH_VDD_CFG		(VDD_ETH_PS_1V8 << VDD_ETH_PS_SHIFT)
+
+#define VDD_ETH_M_PS_SHIFT	28
+#define ETH_M_VDD_CFG		(VDD_ETH_PS_1V8 << VDD_ETH_M_PS_SHIFT)
+
 #endif
diff --git a/arch/arm/include/asm/arch-stv0991/stv0991_periph.h b/arch/arm/include/asm/arch-stv0991/stv0991_periph.h
index f72377110a..f728c83cb7 100644
--- a/arch/arm/include/asm/arch-stv0991/stv0991_periph.h
+++ b/arch/arm/include/asm/arch-stv0991/stv0991_periph.h
@@ -17,6 +17,7 @@
 enum periph_id {
 	UART_GPIOC_30_31 = 0,
 	UART_GPIOB_16_17,
+	ETH_GPIOB_10_31_C_0_4,
 	PERIPH_ID_I2C0,
 	PERIPH_ID_I2C1,
 	PERIPH_ID_I2C2,