| Peter Meerwald | 9e9f4a4 | 2010-09-20 14:08:57 -0400 | [diff] [blame] | 1 | /* |
| 2 | * U-boot - main board file for BCT brettl2 |
| 3 | * |
| 4 | * Copyright (c) 2010 BCT Electronic GmbH |
| 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 <asm/blackfin.h> |
| 13 | #include <asm/portmux.h> |
| 14 | #include <asm/gpio.h> |
| 15 | #include <asm/net.h> |
| 16 | #include <net.h> |
| 17 | #include <netdev.h> |
| 18 | #include <miiphy.h> |
| 19 | |
| 20 | #include "../cm-bf537e/gpio_cfi_flash.h" |
| 21 | #include "smsc9303.h" |
| 22 | |
| 23 | DECLARE_GLOBAL_DATA_PTR; |
| 24 | |
| 25 | int checkboard(void) |
| 26 | { |
| 27 | printf("Board: bct-brettl2 board\n"); |
| 28 | printf(" Support: http://www.bct-electronic.com/\n"); |
| 29 | return 0; |
| 30 | } |
| 31 | |
| 32 | #ifdef CONFIG_BFIN_MAC |
| 33 | static void board_init_enetaddr(uchar *mac_addr) |
| 34 | { |
| 35 | puts("Warning: Generating 'random' MAC address\n"); |
| 36 | bfin_gen_rand_mac(mac_addr); |
| 37 | eth_setenv_enetaddr("ethaddr", mac_addr); |
| 38 | } |
| 39 | |
| 40 | int board_eth_init(bd_t *bis) |
| 41 | { |
| 42 | int retry = 3; |
| 43 | int ret; |
| 44 | |
| 45 | ret = bfin_EMAC_initialize(bis); |
| 46 | |
| 47 | uchar enetaddr[6]; |
| 48 | if (eth_getenv_enetaddr("ethaddr", enetaddr)) { |
| 49 | printf("setting MAC %pM\n", enetaddr); |
| 50 | } |
| 51 | puts(" "); |
| 52 | |
| 53 | puts("initialize SMSC LAN9303i ethernet switch\n"); |
| 54 | |
| 55 | while (retry-- > 0) { |
| 56 | if (init_smsc9303i_mii()) |
| 57 | return ret; |
| 58 | } |
| 59 | |
| 60 | return ret; |
| 61 | } |
| 62 | #endif |
| 63 | |
| 64 | static void init_tlv320aic31(void) |
| 65 | { |
| 66 | puts("Audio: setup TIMER0 to enable 16.384 MHz clock for tlv320aic31\n"); |
| 67 | peripheral_request(P_TMR0, "tlv320aic31 clock"); |
| 68 | bfin_write_TIMER0_CONFIG(0x020d); |
| 69 | bfin_write_TIMER0_PERIOD(0x0008); |
| 70 | bfin_write_TIMER0_WIDTH(0x0008/2); |
| 71 | bfin_write_TIMER_ENABLE(bfin_read_TIMER_ENABLE() | 1); |
| 72 | SSYNC(); |
| 73 | udelay(10000); |
| 74 | |
| 75 | puts(" resetting tlv320aic31\n"); |
| 76 | |
| 77 | gpio_request(GPIO_PF2, "tlv320aic31"); |
| 78 | gpio_direction_output(GPIO_PF2, 0); |
| 79 | udelay(10000); |
| 80 | gpio_direction_output(GPIO_PF2, 1); |
| 81 | udelay(10000); |
| 82 | gpio_free(GPIO_PF2); |
| 83 | } |
| 84 | |
| 85 | static void init_mute_pin(void) |
| 86 | { |
| 87 | printf(" unmute class D amplifier\n"); |
| 88 | |
| 89 | gpio_request(GPIO_PF5, "mute"); |
| 90 | gpio_direction_output(GPIO_PF5, 1); |
| 91 | gpio_free(GPIO_PF5); |
| 92 | } |
| 93 | |
| 94 | /* sometimes LEDs (speech, status) are still on after reboot, turn 'em off */ |
| 95 | static void turn_leds_off(void) |
| 96 | { |
| 97 | printf(" turn LEDs off\n"); |
| 98 | |
| 99 | gpio_request(GPIO_PF6, "led"); |
| 100 | gpio_direction_output(GPIO_PF6, 0); |
| 101 | gpio_free(GPIO_PF6); |
| 102 | |
| 103 | gpio_request(GPIO_PF15, "led"); |
| 104 | gpio_direction_output(GPIO_PF15, 0); |
| 105 | gpio_free(GPIO_PF15); |
| 106 | } |
| 107 | |
| 108 | /* miscellaneous platform dependent initialisations */ |
| 109 | int misc_init_r(void) |
| 110 | { |
| 111 | #ifdef CONFIG_BFIN_MAC |
| 112 | uchar enetaddr[6]; |
| 113 | if (!eth_getenv_enetaddr("ethaddr", enetaddr)) |
| 114 | board_init_enetaddr(enetaddr); |
| 115 | #endif |
| 116 | |
| 117 | gpio_cfi_flash_init(); |
| 118 | init_tlv320aic31(); |
| 119 | init_mute_pin(); |
| 120 | turn_leds_off(); |
| 121 | |
| 122 | return 0; |
| 123 | } |