mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-07 03:36:16 +09:00
102 lines
2.0 KiB
C
102 lines
2.0 KiB
C
/*
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* U-boot - main board file
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*
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* Copyright (c) 2008-2009 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later.
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*/
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#include <common.h>
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#include <config.h>
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#include <command.h>
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#include <net.h>
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#include <netdev.h>
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#include <spi.h>
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#include <asm/blackfin.h>
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#include <asm/net.h>
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#include <asm/mach-common/bits/otp.h>
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DECLARE_GLOBAL_DATA_PTR;
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int checkboard(void)
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{
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printf("Board: ADI BF518F EZ-Board board\n");
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printf(" Support: http://blackfin.uclinux.org/\n");
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return 0;
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}
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phys_size_t initdram(int board_type)
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{
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gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
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gd->bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
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return gd->bd->bi_memsize;
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}
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#if defined(CONFIG_BFIN_MAC)
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static void board_init_enetaddr(uchar *mac_addr)
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{
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bool valid_mac = false;
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#if 0
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/* the MAC is stored in OTP memory page 0xDF */
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uint32_t ret;
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uint64_t otp_mac;
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ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac);
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if (!(ret & OTP_MASTER_ERROR)) {
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uchar *otp_mac_p = (uchar *)&otp_mac;
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for (ret = 0; ret < 6; ++ret)
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mac_addr[ret] = otp_mac_p[5 - ret];
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if (is_valid_ether_addr(mac_addr))
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valid_mac = true;
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}
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#endif
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if (!valid_mac) {
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puts("Warning: Generating 'random' MAC address\n");
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bfin_gen_rand_mac(mac_addr);
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}
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eth_setenv_enetaddr("ethaddr", mac_addr);
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}
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int board_eth_init(bd_t *bis)
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{
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static bool switch_is_alive = false;
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int ret;
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if (!switch_is_alive) {
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struct spi_slave *slave = spi_setup_slave(0, 1, 5000000, SPI_MODE_3);
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if (slave) {
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if (!spi_claim_bus(slave)) {
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unsigned char dout[3] = { 2, 1, 1, };
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unsigned char din[3];
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ret = spi_xfer(slave, sizeof(dout) * 8, dout, din, SPI_XFER_BEGIN | SPI_XFER_END);
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if (!ret)
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switch_is_alive = true;
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spi_release_bus(slave);
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}
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spi_free_slave(slave);
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}
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}
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if (switch_is_alive)
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return bfin_EMAC_initialize(bis);
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else
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return -1;
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}
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#endif
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int misc_init_r(void)
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{
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#ifdef CONFIG_BFIN_MAC
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uchar enetaddr[6];
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if (!eth_getenv_enetaddr("ethaddr", enetaddr))
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board_init_enetaddr(enetaddr);
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#endif
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return 0;
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}
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