upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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122 lines
2.5 KiB
122 lines
2.5 KiB
/*
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* U-boot - main board file for BCT brettl2
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*
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* Copyright (c) 2010 BCT Electronic GmbH
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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 <asm/blackfin.h>
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#include <asm/portmux.h>
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#include <asm/gpio.h>
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#include <net.h>
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#include <netdev.h>
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#include <miiphy.h>
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#include "../cm-bf537e/gpio_cfi_flash.h"
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#include "smsc9303.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: bct-brettl2 board\n");
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printf(" Support: http://www.bct-electronic.com/\n");
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return 0;
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}
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#ifdef CONFIG_BFIN_MAC
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static void board_init_enetaddr(uchar *mac_addr)
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{
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puts("Warning: Generating 'random' MAC address\n");
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eth_random_addr(mac_addr);
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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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int retry = 3;
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int ret;
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ret = bfin_EMAC_initialize(bis);
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uchar enetaddr[6];
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if (eth_getenv_enetaddr("ethaddr", enetaddr)) {
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printf("setting MAC %pM\n", enetaddr);
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}
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puts(" ");
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puts("initialize SMSC LAN9303i ethernet switch\n");
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while (retry-- > 0) {
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if (init_smsc9303i_mii())
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return ret;
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}
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return ret;
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}
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#endif
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static void init_tlv320aic31(void)
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{
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puts("Audio: setup TIMER0 to enable 16.384 MHz clock for tlv320aic31\n");
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peripheral_request(P_TMR0, "tlv320aic31 clock");
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bfin_write_TIMER0_CONFIG(0x020d);
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bfin_write_TIMER0_PERIOD(0x0008);
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bfin_write_TIMER0_WIDTH(0x0008/2);
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bfin_write_TIMER_ENABLE(bfin_read_TIMER_ENABLE() | 1);
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SSYNC();
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udelay(10000);
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puts(" resetting tlv320aic31\n");
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gpio_request(GPIO_PF2, "tlv320aic31");
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gpio_direction_output(GPIO_PF2, 0);
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udelay(10000);
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gpio_direction_output(GPIO_PF2, 1);
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udelay(10000);
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gpio_free(GPIO_PF2);
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}
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static void init_mute_pin(void)
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{
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printf(" unmute class D amplifier\n");
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gpio_request(GPIO_PF5, "mute");
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gpio_direction_output(GPIO_PF5, 1);
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gpio_free(GPIO_PF5);
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}
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/* sometimes LEDs (speech, status) are still on after reboot, turn 'em off */
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static void turn_leds_off(void)
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{
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printf(" turn LEDs off\n");
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gpio_request(GPIO_PF6, "led");
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gpio_direction_output(GPIO_PF6, 0);
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gpio_free(GPIO_PF6);
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gpio_request(GPIO_PF15, "led");
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gpio_direction_output(GPIO_PF15, 0);
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gpio_free(GPIO_PF15);
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}
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/* miscellaneous platform dependent initialisations */
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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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gpio_cfi_flash_init();
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init_tlv320aic31();
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init_mute_pin();
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turn_leds_off();
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return 0;
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}
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