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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128 lines
3.1 KiB
128 lines
3.1 KiB
/*
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* Copyright 2013 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 <console.h>
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#include <ns16550.h>
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#include <malloc.h>
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#include <mmc.h>
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#include <nand.h>
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#include <i2c.h>
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#include "../common/ngpixis.h"
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#include <fsl_esdhc.h>
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#include <spi_flash.h>
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#include "../common/spl.h"
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DECLARE_GLOBAL_DATA_PTR;
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static const u32 sysclk_tbl[] = {
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66666000, 7499900, 83332500, 8999900,
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99999000, 11111000, 12499800, 13333200
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};
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phys_size_t get_effective_memsize(void)
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{
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return CONFIG_SYS_L2_SIZE;
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}
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void board_init_f(ulong bootflag)
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{
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int px_spd;
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u32 plat_ratio, sys_clk, bus_clk;
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ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
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console_init_f();
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/* Set pmuxcr to allow both i2c1 and i2c2 */
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setbits_be32(&gur->pmuxcr, in_be32(&gur->pmuxcr) | 0x1000);
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setbits_be32(&gur->pmuxcr,
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in_be32(&gur->pmuxcr) | MPC85xx_PMUXCR_SD_DATA);
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#ifdef CONFIG_SPL_SPI_BOOT
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/* Enable the SPI */
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clrsetbits_8(&pixis->brdcfg0, PIXIS_ELBC_SPI_MASK, PIXIS_SPI);
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#endif
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/* Read back the register to synchronize the write. */
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in_be32(&gur->pmuxcr);
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/* initialize selected port with appropriate baud rate */
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px_spd = in_8((unsigned char *)(PIXIS_BASE + PIXIS_SPD));
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sys_clk = sysclk_tbl[px_spd & PIXIS_SPD_SYSCLK_MASK];
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plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
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bus_clk = sys_clk * plat_ratio / 2;
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NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
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bus_clk / 16 / CONFIG_BAUDRATE);
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#ifdef CONFIG_SPL_MMC_BOOT
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puts("\nSD boot...\n");
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#elif defined(CONFIG_SPL_SPI_BOOT)
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puts("\nSPI Flash boot...\n");
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#endif
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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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/* Pointer is writable since we allocated a register for it */
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gd = (gd_t *)CONFIG_SPL_GD_ADDR;
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bd_t *bd;
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memset(gd, 0, sizeof(gd_t));
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bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
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memset(bd, 0, sizeof(bd_t));
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gd->bd = bd;
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bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
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bd->bi_memsize = CONFIG_SYS_L2_SIZE;
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probecpu();
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get_clocks();
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mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
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CONFIG_SPL_RELOC_MALLOC_SIZE);
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gd->flags |= GD_FLG_FULL_MALLOC_INIT;
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#ifndef CONFIG_SPL_NAND_BOOT
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env_init();
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#endif
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#ifdef CONFIG_SPL_MMC_BOOT
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mmc_initialize(bd);
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#endif
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/* relocate environment function pointers etc. */
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#ifdef CONFIG_SPL_NAND_BOOT
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nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
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(uchar *)CONFIG_ENV_ADDR);
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gd->env_addr = (ulong)(CONFIG_ENV_ADDR);
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gd->env_valid = 1;
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#else
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env_relocate();
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#endif
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#ifdef CONFIG_SYS_I2C
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i2c_init_all();
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#else
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i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
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#endif
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gd->ram_size = initdram(0);
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#ifdef CONFIG_SPL_NAND_BOOT
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puts("Tertiary program loader running in sram...");
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#else
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puts("Second program loader running in sram...\n");
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#endif
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#ifdef CONFIG_SPL_MMC_BOOT
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mmc_boot();
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#elif defined(CONFIG_SPL_SPI_BOOT)
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fsl_spi_boot();
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#elif defined(CONFIG_SPL_NAND_BOOT)
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nand_boot();
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#endif
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}
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