Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Miscelaneous DaVinci functions. |
| 3 | * |
| 4 | * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> |
| 5 | * Copyright (C) 2008 Lyrtech <www.lyrtech.com> |
| 6 | * Copyright (C) 2004 Texas Instruments. |
| 7 | * |
| 8 | * See file CREDITS for list of people who contributed to this |
| 9 | * project. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2 of the License, or |
| 14 | * (at your option) any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 24 | */ |
| 25 | |
| 26 | #include <common.h> |
| 27 | #include <i2c.h> |
David Brownell | c83d2d9 | 2009-04-12 22:49:26 -0700 | [diff] [blame] | 28 | #include <net.h> |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 29 | #include <asm/arch/hardware.h> |
| 30 | |
David Brownell | 4506400 | 2009-05-15 23:47:12 +0200 | [diff] [blame] | 31 | |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 32 | DECLARE_GLOBAL_DATA_PTR; |
| 33 | |
| 34 | int dram_init(void) |
| 35 | { |
| 36 | gd->bd->bi_dram[0].start = PHYS_SDRAM_1; |
| 37 | gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; |
| 38 | |
| 39 | return(0); |
| 40 | } |
| 41 | |
David Brownell | c83d2d9 | 2009-04-12 22:49:26 -0700 | [diff] [blame] | 42 | #ifdef CONFIG_DRIVER_TI_EMAC |
| 43 | |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 44 | /* Read ethernet MAC address from EEPROM for DVEVM compatible boards. |
| 45 | * Returns 1 if found, 0 otherwise. |
| 46 | */ |
| 47 | int dvevm_read_mac_address(uint8_t *buf) |
| 48 | { |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 49 | #ifdef CONFIG_SYS_I2C_EEPROM_ADDR |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 50 | /* Read MAC address. */ |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 51 | if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0x7F00, CONFIG_SYS_I2C_EEPROM_ADDR_LEN, |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 52 | (uint8_t *) &buf[0], 6)) |
| 53 | goto i2cerr; |
| 54 | |
David Brownell | c83d2d9 | 2009-04-12 22:49:26 -0700 | [diff] [blame] | 55 | /* Check that MAC address is valid. */ |
| 56 | if (!is_valid_ether_addr(buf)) |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 57 | goto err; |
| 58 | |
| 59 | return 1; /* Found */ |
| 60 | |
| 61 | i2cerr: |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 62 | printf("Read from EEPROM @ 0x%02x failed\n", CONFIG_SYS_I2C_EEPROM_ADDR); |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 63 | err: |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 64 | #endif /* CONFIG_SYS_I2C_EEPROM_ADDR */ |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 65 | |
| 66 | return 0; |
| 67 | } |
| 68 | |
| 69 | /* If there is a MAC address in the environment, and if it is not identical to |
David Brownell | c83d2d9 | 2009-04-12 22:49:26 -0700 | [diff] [blame] | 70 | * the MAC address in the EEPROM, then a warning is printed and the MAC address |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 71 | * from the environment is used. |
| 72 | * |
| 73 | * If there is no MAC address in the environment, then it will be initialized |
David Brownell | c83d2d9 | 2009-04-12 22:49:26 -0700 | [diff] [blame] | 74 | * (silently) from the value in the EEPROM. |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 75 | */ |
| 76 | void dv_configure_mac_address(uint8_t *rom_enetaddr) |
| 77 | { |
| 78 | int i; |
| 79 | u_int8_t env_enetaddr[6]; |
| 80 | char *tmp = getenv("ethaddr"); |
| 81 | char *end; |
| 82 | |
| 83 | /* Read Ethernet MAC address from the U-Boot environment. |
| 84 | * If it is not defined, env_enetaddr[] will be cleared. */ |
| 85 | for (i = 0; i < 6; i++) { |
| 86 | env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0; |
| 87 | if (tmp) |
| 88 | tmp = (*end) ? end+1 : end; |
| 89 | } |
| 90 | |
David Brownell | c83d2d9 | 2009-04-12 22:49:26 -0700 | [diff] [blame] | 91 | /* Check if EEPROM and U-Boot environment MAC addresses match. */ |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 92 | if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6) != 0 && |
| 93 | memcmp(env_enetaddr, rom_enetaddr, 6) != 0) { |
| 94 | printf("Warning: MAC addresses don't match:\n"); |
David Brownell | c83d2d9 | 2009-04-12 22:49:26 -0700 | [diff] [blame] | 95 | printf(" EEPROM MAC address: %pM\n", rom_enetaddr); |
| 96 | printf(" \"ethaddr\" value: %pM\n", env_enetaddr) ; |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 97 | debug("### Using MAC address from environment\n"); |
| 98 | } |
| 99 | if (!tmp) { |
| 100 | char ethaddr[20]; |
| 101 | |
| 102 | /* There is no MAC address in the environment, so we initialize |
David Brownell | c83d2d9 | 2009-04-12 22:49:26 -0700 | [diff] [blame] | 103 | * it from the value in the EEPROM. */ |
| 104 | sprintf(ethaddr, "%pM", rom_enetaddr) ; |
| 105 | debug("### Setting environment from EEPROM MAC address = \"%s\"\n", |
Hugo Villeneuve | 4e352ef | 2008-07-11 15:10:13 -0400 | [diff] [blame] | 106 | ethaddr); |
| 107 | setenv("ethaddr", ethaddr); |
| 108 | } |
| 109 | } |
David Brownell | c83d2d9 | 2009-04-12 22:49:26 -0700 | [diff] [blame] | 110 | |
| 111 | #endif /* DAVINCI_EMAC */ |