sh: ms7724se: Add sh_eth support
Kuninori Morimoto [Fri, 26 Jun 2009 07:05:39 +0000 (07:05 +0000)]
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/boards/mach-se/7724/setup.c
arch/sh/include/mach-se/mach/se7724.h

index 9cd04bd..21d1800 100644 (file)
@@ -23,6 +23,8 @@
 #include <media/sh_mobile_ceu.h>
 #include <asm/io.h>
 #include <asm/heartbeat.h>
+#include <asm/sh_eth.h>
+#include <asm/clock.h>
 #include <asm/sh_keysc.h>
 #include <cpu/sh7724.h>
 #include <mach-se/mach/se7724.h>
@@ -272,6 +274,34 @@ static struct platform_device keysc_device = {
        },
 };
 
+/* SH Eth */
+static struct resource sh_eth_resources[] = {
+       [0] = {
+               .start = SH_ETH_ADDR,
+               .end   = SH_ETH_ADDR + 0x1FC,
+               .flags = IORESOURCE_MEM,
+       },
+       [1] = {
+               .start = 91,
+               .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+       },
+};
+
+struct sh_eth_plat_data sh_eth_plat = {
+       .phy = 0x1f, /* SMSC LAN8187 */
+       .edmac_endian = EDMAC_LITTLE_ENDIAN,
+};
+
+static struct platform_device sh_eth_device = {
+       .name = "sh-eth",
+       .id     = 0,
+       .dev = {
+               .platform_data = &sh_eth_plat,
+       },
+       .num_resources = ARRAY_SIZE(sh_eth_resources),
+       .resource = sh_eth_resources,
+};
+
 static struct platform_device *ms7724se_devices[] __initdata = {
        &heartbeat_device,
        &smc91x_eth_device,
@@ -280,8 +310,57 @@ static struct platform_device *ms7724se_devices[] __initdata = {
        &ceu0_device,
        &ceu1_device,
        &keysc_device,
+       &sh_eth_device,
 };
 
+#define EEPROM_OP   0xBA206000
+#define EEPROM_ADR  0xBA206004
+#define EEPROM_DATA 0xBA20600C
+#define EEPROM_STAT 0xBA206010
+#define EEPROM_STRT 0xBA206014
+static int __init sh_eth_is_eeprom_ready(void)
+{
+       int t = 10000;
+
+       while (t--) {
+               if (!ctrl_inw(EEPROM_STAT))
+                       return 1;
+               cpu_relax();
+       }
+
+       printk(KERN_ERR "ms7724se can not access to eeprom\n");
+       return 0;
+}
+
+static void __init sh_eth_init(void)
+{
+       int i;
+       u16 mac[3];
+
+       /* check EEPROM status */
+       if (!sh_eth_is_eeprom_ready())
+               return;
+
+       /* read MAC addr from EEPROM */
+       for (i = 0 ; i < 3 ; i++) {
+               ctrl_outw(0x0, EEPROM_OP); /* read */
+               ctrl_outw(i*2, EEPROM_ADR);
+               ctrl_outw(0x1, EEPROM_STRT);
+               if (!sh_eth_is_eeprom_ready())
+                       return;
+
+               mac[i] = ctrl_inw(EEPROM_DATA);
+               mac[i] = ((mac[i] & 0xFF) << 8) | (mac[i] >> 8); /* swap */
+       }
+
+       /* reset sh-eth */
+       ctrl_outl(0x1, SH_ETH_ADDR + 0x0);
+
+       /* set MAC addr */
+       ctrl_outl(((mac[0] << 16) | (mac[1])), SH_ETH_MAHR);
+       ctrl_outl((mac[2]), SH_ETH_MALR);
+}
+
 #define SW4140    0xBA201000
 #define FPGA_OUT  0xBA200400
 #define PORT_HIZA 0xA4050158
@@ -302,7 +381,8 @@ static int __init devices_setup(void)
        ctrl_outw(ctrl_inw(FPGA_OUT) &
                  ~((1 << 1)  | /* LAN */
                    (1 << 6)  | /* VIDEO DAC */
-                   (1 << 12)), /* USB0 */
+                   (1 << 12) | /* USB0 */
+                   (1 << 14)), /* RMII */
                  FPGA_OUT);
 
        /* enable IRQ 0,1,2 */
@@ -404,6 +484,28 @@ static int __init devices_setup(void)
        gpio_request(GPIO_FN_KEYOUT1,     NULL);
        gpio_request(GPIO_FN_KEYOUT0,     NULL);
 
+       /*
+        * enable SH-Eth
+        *
+        * please remove J33 pin from your board !!
+        *
+        * ms7724 board should not use GPIO_FN_LNKSTA pin
+        * So, This time PTX5 is set to input pin
+        */
+       gpio_request(GPIO_FN_RMII_RXD0,    NULL);
+       gpio_request(GPIO_FN_RMII_RXD1,    NULL);
+       gpio_request(GPIO_FN_RMII_TXD0,    NULL);
+       gpio_request(GPIO_FN_RMII_TXD1,    NULL);
+       gpio_request(GPIO_FN_RMII_REF_CLK, NULL);
+       gpio_request(GPIO_FN_RMII_TX_EN,   NULL);
+       gpio_request(GPIO_FN_RMII_RX_ER,   NULL);
+       gpio_request(GPIO_FN_RMII_CRS_DV,  NULL);
+       gpio_request(GPIO_FN_MDIO,         NULL);
+       gpio_request(GPIO_FN_MDC,          NULL);
+       gpio_request(GPIO_PTX5, NULL);
+       gpio_direction_input(GPIO_PTX5);
+       sh_eth_init();
+
        if (sw & SW41_B) {
                /* SVGA */
                lcdc_info.ch[0].lcd_cfg.xres         = 800;
@@ -437,7 +539,7 @@ static int __init devices_setup(void)
        }
 
        return platform_add_devices(ms7724se_devices,
-                               ARRAY_SIZE(ms7724se_devices));
+                                   ARRAY_SIZE(ms7724se_devices));
 }
 device_initcall(devices_setup);
 
index 74164b6..29514a3 100644 (file)
  */
 #include <asm/addrspace.h>
 
+/* SH Eth */
+#define SH_ETH_ADDR    (0xA4600000)
+#define SH_ETH_MAHR    (SH_ETH_ADDR + 0x1C0)
+#define SH_ETH_MALR    (SH_ETH_ADDR + 0x1C8)
+
 #define PA_LED         (0xba203000)    /* 8bit LED */
 #define IRQ_MODE       (0xba200010)
 #define IRQ0_SR                (0xba200014)