LXR uboot/board/xes/xpedite520x/xpedite520x.c

   1/*
   2 * Copyright 2008 Extreme Engineering Solutions, Inc.
   3 * Copyright 2004, 2007 Freescale Semiconductor, Inc.
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <common.h>
   9#include <command.h>
  10#include <pci.h>
  11#include <asm/processor.h>
  12#include <asm/immap_85xx.h>
  13#include <asm/fsl_pci.h>
  14#include <asm/io.h>
  15#include <asm/cache.h>
  16#include <asm/mmu.h>
  17#include <libfdt.h>
  18#include <fdt_support.h>
  19#include <pca953x.h>
  20
  21extern void ft_board_pci_setup(void *blob, bd_t *bd);
  22
  23static void flash_cs_fixup(void)
  24{
  25        int flash_sel;
  26
  27        /*
  28         * Print boot dev and swap flash flash chip selects if booted from 2nd
  29         * flash.  Swapping chip selects presents user with a common memory
  30         * map regardless of which flash was booted from.
  31         */
  32        flash_sel = !((pca953x_get_val(CONFIG_SYS_I2C_PCA953X_ADDR0) &
  33                        CONFIG_SYS_PCA953X_FLASH_PASS_CS));
  34        printf("Flash: Executed from flash%d\n", flash_sel ? 2 : 1);
  35
  36        if (flash_sel) {
  37                set_lbc_br(0, CONFIG_SYS_BR1_PRELIM);
  38                set_lbc_or(0, CONFIG_SYS_OR1_PRELIM);
  39
  40                set_lbc_br(1, CONFIG_SYS_BR0_PRELIM);
  41                set_lbc_or(1, CONFIG_SYS_OR0_PRELIM);
  42        }
  43}
  44
  45int board_early_init_r(void)
  46{
  47        /* Initialize PCA9557 devices */
  48        pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR0, 0xff, 0);
  49        pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR1, 0xff, 0);
  50
  51        /*
  52         * Remap NOR flash region to caching-inhibited
  53         * so that flash can be erased/programmed properly.
  54         */
  55
  56        /* Flush d-cache and invalidate i-cache of any FLASH data */
  57        flush_dcache();
  58        invalidate_icache();
  59
  60        /* Invalidate existing TLB entry for NOR flash */
  61        disable_tlb(0);
  62        set_tlb(1, (CONFIG_SYS_FLASH_BASE2 & 0xf0000000),
  63                (CONFIG_SYS_FLASH_BASE2 & 0xf0000000),
  64                MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  65                0, 0, BOOKE_PAGESZ_256M, 1);
  66
  67        flash_cs_fixup();
  68
  69        return 0;
  70}
  71
  72#if defined(CONFIG_OF_BOARD_SETUP)
  73int ft_board_setup(void *blob, bd_t *bd)
  74{
  75#ifdef CONFIG_PCI
  76        ft_board_pci_setup(blob, bd);
  77#endif
  78        ft_cpu_setup(blob, bd);
  79
  80        return 0;
  81}
  82#endif
  83