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

@@ -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;

include/configs/gose.h

@@ -27,6 +27,11 @@
 #define CONFIG_CMD_SF
 #define CONFIG_CMD_SPI
 #define CONFIG_CMD_I2C
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_NFS
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_MII
 
 #if defined(CONFIG_RMOBILE_EXTRAM_BOOT)
 #define CONFIG_SYS_TEXT_BASE	0x70000000
@@ -123,6 +128,20 @@
 #define CONFIG_ENV_SIZE		(CONFIG_ENV_SECT_SIZE)
 #define CONFIG_ENV_SIZE_REDUND	(CONFIG_SYS_MONITOR_LEN)
 
+/* SH Ether */
+#define	CONFIG_NET_MULTI
+#define CONFIG_SH_ETHER
+#define CONFIG_SH_ETHER_USE_PORT	0
+#define CONFIG_SH_ETHER_PHY_ADDR	0x1
+#define CONFIG_SH_ETHER_PHY_MODE PHY_INTERFACE_MODE_RMII
+#define CONFIG_SH_ETHER_CACHE_WRITEBACK
+#define CONFIG_SH_ETHER_CACHE_INVALIDATE
+#define CONFIG_PHYLIB
+#define CONFIG_PHY_MICREL
+#define CONFIG_BITBANGMII
+#define CONFIG_BITBANGMII_MULTI
+#define CONFIG_SH_ETHER_ALIGNE_SIZE	64
+
 /* Board Clock */
 #define RMOBILE_XTAL_CLK	20000000u
 #define CONFIG_SYS_CLK_FREQ	RMOBILE_XTAL_CLK