mirror of
https://github.com/AsahiLinux/u-boot
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82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/*
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* Copyright 2008 Extreme Engineering Solutions, 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 <command.h>
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#include <asm/processor.h>
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#include <asm/mmu.h>
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#include <asm/immap_85xx.h>
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#include <asm/fsl_pci.h>
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#include <asm/io.h>
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#include <asm/cache.h>
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#include <libfdt.h>
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#include <fdt_support.h>
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#include <pca953x.h>
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DECLARE_GLOBAL_DATA_PTR;
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extern void ft_board_pci_setup(void *blob, bd_t *bd);
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static void flash_cs_fixup(void)
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{
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int flash_sel;
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/*
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* Print boot dev and swap flash flash chip selects if booted from 2nd
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* flash. Swapping chip selects presents user with a common memory
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* map regardless of which flash was booted from.
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*/
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flash_sel = !((pca953x_get_val(CONFIG_SYS_I2C_PCA953X_ADDR0) &
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CONFIG_SYS_PCA953X_C0_FLASH_PASS_CS));
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printf("Flash: Executed from flash%d\n", flash_sel ? 2 : 1);
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if (flash_sel) {
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set_lbc_br(0, CONFIG_SYS_BR1_PRELIM);
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set_lbc_or(0, CONFIG_SYS_OR1_PRELIM);
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set_lbc_br(1, CONFIG_SYS_BR0_PRELIM);
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set_lbc_or(1, CONFIG_SYS_OR0_PRELIM);
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}
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}
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int board_early_init_r(void)
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{
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/* Initialize PCA9557 devices */
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pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR0, 0xff, 0);
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pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR1, 0xff, 0);
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pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR2, 0xff, 0);
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pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR3, 0xff, 0);
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/*
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* Remap NOR flash region to caching-inhibited
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* so that flash can be erased/programmed properly.
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*/
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/* Flush d-cache and invalidate i-cache of any FLASH data */
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flush_dcache();
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invalidate_icache();
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/* Invalidate existing TLB entry for NOR flash */
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disable_tlb(0);
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set_tlb(1, (CONFIG_SYS_FLASH_BASE2 & 0xf0000000),
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(CONFIG_SYS_FLASH_BASE2 & 0xf0000000),
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 0, BOOKE_PAGESZ_256M, 1);
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flash_cs_fixup();
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return 0;
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}
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#if defined(CONFIG_OF_BOARD_SETUP)
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void ft_board_setup(void *blob, bd_t *bd)
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{
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#ifdef CONFIG_PCI
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ft_board_pci_setup(blob, bd);
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#endif
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ft_cpu_setup(blob, bd);
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}
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#endif
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