forked from luck/tmp_suning_uos_patched
sh: EcoVec24: write MAC address in boot
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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be4ebf999a
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@ -17,6 +17,7 @@
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#include <linux/io.h>
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#include <linux/delay.h>
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#include <linux/usb/r8a66597.h>
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#include <linux/i2c.h>
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#include <video/sh_mobile_lcdc.h>
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#include <media/sh_mobile_ceu.h>
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#include <asm/heartbeat.h>
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@ -342,9 +343,77 @@ static struct platform_device *ecovec_devices[] __initdata = {
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&ceu1_device,
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};
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#define EEPROM_ADDR 0x50
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static u8 mac_read(struct i2c_adapter *a, u8 command)
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{
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struct i2c_msg msg[2];
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u8 buf;
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int ret;
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msg[0].addr = EEPROM_ADDR;
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msg[0].flags = 0;
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msg[0].len = 1;
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msg[0].buf = &command;
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msg[1].addr = EEPROM_ADDR;
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msg[1].flags = I2C_M_RD;
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msg[1].len = 1;
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msg[1].buf = &buf;
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ret = i2c_transfer(a, msg, 2);
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if (ret < 0) {
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printk(KERN_ERR "error %d\n", ret);
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buf = 0xff;
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}
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return buf;
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}
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#define MAC_LEN 6
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static void __init sh_eth_init(void)
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{
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struct i2c_adapter *a = i2c_get_adapter(1);
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struct clk *eth_clk;
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u8 mac[MAC_LEN];
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int i;
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if (!a) {
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pr_err("can not get I2C 1\n");
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return;
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}
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eth_clk = clk_get(NULL, "eth0");
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if (!eth_clk) {
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pr_err("can not get eth0 clk\n");
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return;
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}
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/* read MAC address frome EEPROM */
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for (i = 0; i < MAC_LEN; i++) {
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mac[i] = mac_read(a, 0x10 + i);
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msleep(10);
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}
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/* clock enable */
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clk_enable(eth_clk);
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/* reset sh-eth */
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ctrl_outl(0x1, SH_ETH_ADDR + 0x0);
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/* set MAC addr */
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ctrl_outl((mac[0] << 24) |
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(mac[1] << 16) |
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(mac[2] << 8) |
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(mac[3] << 0), SH_ETH_MAHR);
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ctrl_outl((mac[4] << 8) |
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(mac[5] << 0), SH_ETH_MALR);
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clk_put(eth_clk);
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}
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#define PORT_HIZA 0xA4050158
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#define IODRIVEA 0xA405018A
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static int __init devices_setup(void)
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static int __init arch_setup(void)
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{
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/* enable SCIFA0 */
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gpio_request(GPIO_FN_SCIF0_TXD, NULL);
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@ -521,7 +590,15 @@ static int __init devices_setup(void)
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return platform_add_devices(ecovec_devices,
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ARRAY_SIZE(ecovec_devices));
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}
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arch_initcall(devices_setup);
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arch_initcall(arch_setup);
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static int __init devices_setup(void)
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{
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sh_eth_init();
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return 0;
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}
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device_initcall(devices_setup);
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static struct sh_machine_vector mv_ecovec __initmv = {
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.mv_name = "R0P7724 (EcoVec)",
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