| Mike Frysinger | 4752c19 | 2008-10-12 21:32:52 -0400 | [diff] [blame] | 1 | /* |
| 2 | * U-boot - main board file |
| 3 | * |
| 4 | * Copyright (c) 2008-2009 Analog Devices Inc. |
| 5 | * |
| 6 | * Licensed under the GPL-2 or later. |
| 7 | */ |
| 8 | |
| 9 | #include <common.h> |
| 10 | #include <config.h> |
| 11 | #include <command.h> |
| 12 | #include <net.h> |
| 13 | #include <netdev.h> |
| 14 | #include <spi.h> |
| 15 | #include <asm/blackfin.h> |
| 16 | #include <asm/net.h> |
| 17 | #include <asm/mach-common/bits/otp.h> |
| 18 | |
| 19 | DECLARE_GLOBAL_DATA_PTR; |
| 20 | |
| 21 | int checkboard(void) |
| 22 | { |
| 23 | printf("Board: ADI BF518F EZ-Board board\n"); |
| 24 | printf(" Support: http://blackfin.uclinux.org/\n"); |
| 25 | return 0; |
| 26 | } |
| 27 | |
| 28 | phys_size_t initdram(int board_type) |
| 29 | { |
| 30 | gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; |
| 31 | gd->bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE; |
| 32 | return gd->bd->bi_memsize; |
| 33 | } |
| 34 | |
| 35 | #if defined(CONFIG_BFIN_MAC) |
| 36 | static void board_init_enetaddr(uchar *mac_addr) |
| 37 | { |
| 38 | bool valid_mac = false; |
| 39 | |
| 40 | #if 0 |
| 41 | /* the MAC is stored in OTP memory page 0xDF */ |
| 42 | uint32_t ret; |
| 43 | uint64_t otp_mac; |
| 44 | |
| 45 | ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac); |
| 46 | if (!(ret & OTP_MASTER_ERROR)) { |
| 47 | uchar *otp_mac_p = (uchar *)&otp_mac; |
| 48 | |
| 49 | for (ret = 0; ret < 6; ++ret) |
| 50 | mac_addr[ret] = otp_mac_p[5 - ret]; |
| 51 | |
| 52 | if (is_valid_ether_addr(mac_addr)) |
| 53 | valid_mac = true; |
| 54 | } |
| 55 | #endif |
| 56 | |
| 57 | if (!valid_mac) { |
| 58 | puts("Warning: Generating 'random' MAC address\n"); |
| 59 | bfin_gen_rand_mac(mac_addr); |
| 60 | } |
| 61 | |
| 62 | eth_setenv_enetaddr("ethaddr", mac_addr); |
| 63 | } |
| 64 | |
| 65 | int board_eth_init(bd_t *bis) |
| 66 | { |
| 67 | static bool switch_is_alive = false; |
| 68 | int ret; |
| 69 | |
| 70 | if (!switch_is_alive) { |
| 71 | struct spi_slave *slave = spi_setup_slave(0, 1, 5000000, SPI_MODE_3); |
| 72 | if (slave) { |
| 73 | if (!spi_claim_bus(slave)) { |
| 74 | unsigned char dout[3] = { 2, 1, 1, }; |
| 75 | unsigned char din[3]; |
| 76 | ret = spi_xfer(slave, sizeof(dout) * 8, dout, din, SPI_XFER_BEGIN | SPI_XFER_END); |
| 77 | if (!ret) |
| 78 | switch_is_alive = true; |
| 79 | spi_release_bus(slave); |
| 80 | } |
| 81 | spi_free_slave(slave); |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | if (switch_is_alive) |
| 86 | return bfin_EMAC_initialize(bis); |
| 87 | else |
| 88 | return -1; |
| 89 | } |
| 90 | #endif |
| 91 | |
| 92 | int misc_init_r(void) |
| 93 | { |
| 94 | #ifdef CONFIG_BFIN_MAC |
| 95 | uchar enetaddr[6]; |
| 96 | if (!eth_getenv_enetaddr("ethaddr", enetaddr)) |
| 97 | board_init_enetaddr(enetaddr); |
| 98 | #endif |
| 99 | |
| 100 | return 0; |
| 101 | } |