From f0261243102fbc020a01178a46a52e00fc55e3d2 Mon Sep 17 00:00:00 2001
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Date: Thu, 6 Nov 2014 15:42:24 +0900
Subject: arm: rmobile: gose: Add Ethernet support

Gose board has one ether port, this works using sh-ether driver.
This adds GPIO settings and driver settings in order to use the sh-ether.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
---
 board/renesas/gose/gose.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

(limited to 'board/renesas/gose/gose.c')

diff --git a/board/renesas/gose/gose.c b/board/renesas/gose/gose.c
index 09905af..2cef701 100644
--- a/board/renesas/gose/gose.c
+++ b/board/renesas/gose/gose.c
@@ -15,6 +15,8 @@
 #include <asm/arch/sys_proto.h>
 #include <asm/gpio.h>
 #include <asm/arch/rmobile.h>
+#include <netdev.h>
+#include <miiphy.h>
 #include <i2c.h>
 #include "qos.h"
 
@@ -47,6 +49,10 @@ void s_init(void)
 #define SMSTPCR7	0xE615014C
 #define SCIF0_MSTP721	(1 << 21)
 
+#define MSTPSR8		0xE61509A0
+#define SMSTPCR8	0xE6150990
+#define ETHER_MSTP813	(1 << 13)
+
 #define mstp_setbits(type, addr, saddr, set) \
 	out_##type((saddr), in_##type(addr) | (set))
 #define mstp_clrbits(type, addr, saddr, clear) \
@@ -64,6 +70,9 @@ int board_early_init_f(void)
 	/* SCIF0 */
 	mstp_clrbits_le32(MSTPSR7, SMSTPCR7, SCIF0_MSTP721);
 
+	/* ETHER */
+	mstp_clrbits_le32(MSTPSR8, SMSTPCR8, ETHER_MSTP813);
+
 	return 0;
 }
 
@@ -77,6 +86,10 @@ void arch_preboot_os(void)
 	mstp_setbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
 }
 
+#define PUPR5		0xE6060114
+#define PUPR5_ETH	0x3FFC0000
+#define PUPR5_ETH_MAGIC	(1 << 27)
+
 int board_init(void)
 {
 	/* adress of boot parameters */
@@ -85,9 +98,58 @@ int board_init(void)
 	/* Init PFC controller */
 	r8a7793_pinmux_init();
 
+	/* ETHER Enable */
+	gpio_request(GPIO_FN_ETH_CRS_DV, NULL);
+	gpio_request(GPIO_FN_ETH_RX_ER, NULL);
+	gpio_request(GPIO_FN_ETH_RXD0, NULL);
+	gpio_request(GPIO_FN_ETH_RXD1, NULL);
+	gpio_request(GPIO_FN_ETH_LINK, NULL);
+	gpio_request(GPIO_FN_ETH_REFCLK, NULL);
+	gpio_request(GPIO_FN_ETH_MDIO, NULL);
+	gpio_request(GPIO_FN_ETH_TXD1, NULL);
+	gpio_request(GPIO_FN_ETH_TX_EN, NULL);
+	gpio_request(GPIO_FN_ETH_TXD0, NULL);
+	gpio_request(GPIO_FN_ETH_MDC, NULL);
+	gpio_request(GPIO_FN_IRQ0, NULL);
+
+	mstp_clrbits_le32(PUPR5, PUPR5, PUPR5_ETH & ~PUPR5_ETH_MAGIC);
+	gpio_request(GPIO_GP_5_22, NULL); /* PHY_RST */
+	mstp_clrbits_le32(PUPR5, PUPR5, PUPR5_ETH_MAGIC);
+
+	gpio_direction_output(GPIO_GP_5_22, 0);
+	mdelay(20);
+	gpio_set_value(GPIO_GP_5_22, 1);
+	udelay(1);
+
 	return 0;
 }
 
+#define CXR24 0xEE7003C0 /* MAC address high register */
+#define CXR25 0xEE7003C8 /* MAC address low register */
+
+int board_eth_init(bd_t *bis)
+{
+	int ret = -ENODEV;
+	u32 val;
+	unsigned char enetaddr[6];
+
+#ifdef CONFIG_SH_ETHER
+	ret = sh_eth_initialize(bis);
+	if (!eth_getenv_enetaddr("ethaddr", enetaddr))
+		return ret;
+
+	/* Set Mac address */
+	val = enetaddr[0] << 24 | enetaddr[1] << 16 |
+	    enetaddr[2] << 8 | enetaddr[3];
+	writel(val, CXR24);
+
+	val = enetaddr[4] << 8 | enetaddr[5];
+	writel(val, CXR25);
+#endif
+
+	return ret;
+}
+
 int dram_init(void)
 {
 	gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
-- 
cgit v1.1