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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84 lines
1.9 KiB
84 lines
1.9 KiB
/*
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* Copyright 2011 Freescale Semiconductor, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <ns16550.h>
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#include <asm/io.h>
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#include <nand.h>
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#include <linux/compiler.h>
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#include <asm/fsl_law.h>
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#include <fsl_ddr_sdram.h>
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#include <asm/global_data.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define SYSCLK_MASK 0x00200000
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#define BOARDREV_MASK 0x10100000
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#define SYSCLK_66 66666666
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#define SYSCLK_100 100000000
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unsigned long get_board_sys_clk(ulong dummy)
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{
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ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
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u32 val_gpdat, sysclk_gpio;
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val_gpdat = in_be32(&pgpio->gpdat);
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sysclk_gpio = val_gpdat & SYSCLK_MASK;
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if (sysclk_gpio == 0)
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return SYSCLK_66;
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else
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return SYSCLK_100;
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return 0;
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}
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void board_init_f(ulong bootflag)
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{
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u32 plat_ratio;
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ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
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#if defined(CONFIG_SYS_NAND_BR_PRELIM) && defined(CONFIG_SYS_NAND_OR_PRELIM)
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set_lbc_br(0, CONFIG_SYS_NAND_BR_PRELIM);
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set_lbc_or(0, CONFIG_SYS_NAND_OR_PRELIM);
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#endif
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/* initialize selected port with appropriate baud rate */
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plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
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plat_ratio >>= 1;
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gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
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NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
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gd->bus_clk / 16 / CONFIG_BAUDRATE);
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puts("\nNAND boot... ");
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/* copy code to RAM and jump to it - this should not return */
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/* NOTE - code has to be copied out of NAND buffer before
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* other blocks can be read.
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*/
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relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
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}
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void board_init_r(gd_t *gd, ulong dest_addr)
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{
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puts("\nSecond program loader running in sram...");
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nand_boot();
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}
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void putc(char c)
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{
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if (c == '\n')
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NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
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NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
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}
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void puts(const char *str)
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{
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while (*str)
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putc(*str++);
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}
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