blob: efd563b266b655885448d95e1943b939ca5f3712 [file] [log] [blame]
Peter Tyserccf0fdd2008-12-17 16:36:23 -06001/*
2 * Copyright 2008 Extreme Engineering Solutions, Inc.
3 *
Wolfgang Denk3765b3e2013-10-07 13:07:26 +02004 * SPDX-License-Identifier: GPL-2.0+
Peter Tyserccf0fdd2008-12-17 16:36:23 -06005 */
6
7#include <common.h>
8#include <command.h>
9#include <asm/processor.h>
10#include <asm/mmu.h>
11#include <asm/immap_85xx.h>
Kumar Galac8514622009-04-02 13:22:48 -050012#include <asm/fsl_pci.h>
Peter Tyserccf0fdd2008-12-17 16:36:23 -060013#include <asm/io.h>
14#include <asm/cache.h>
15#include <libfdt.h>
16#include <fdt_support.h>
17#include <pca953x.h>
18
19DECLARE_GLOBAL_DATA_PTR;
20
21extern void ft_board_pci_setup(void *blob, bd_t *bd);
22
Peter Tyserccf0fdd2008-12-17 16:36:23 -060023static void flash_cs_fixup(void)
24{
Peter Tyserccf0fdd2008-12-17 16:36:23 -060025 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_C0_FLASH_PASS_CS));
Peter Tysereddf52b2010-12-28 18:12:05 -060034 printf("Flash: Executed from flash%d\n", flash_sel ? 2 : 1);
Peter Tyserccf0fdd2008-12-17 16:36:23 -060035
36 if (flash_sel) {
Becky Brucef51cdaf2010-06-17 11:37:20 -050037 set_lbc_br(0, CONFIG_SYS_BR1_PRELIM);
38 set_lbc_or(0, CONFIG_SYS_OR1_PRELIM);
Peter Tyserccf0fdd2008-12-17 16:36:23 -060039
Becky Brucef51cdaf2010-06-17 11:37:20 -050040 set_lbc_br(1, CONFIG_SYS_BR0_PRELIM);
41 set_lbc_or(1, CONFIG_SYS_OR0_PRELIM);
Peter Tyserccf0fdd2008-12-17 16:36:23 -060042 }
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);
Peter Tyser58f31b62009-07-19 19:17:41 -050050 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR2, 0xff, 0);
51 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR3, 0xff, 0);
Peter Tyserccf0fdd2008-12-17 16:36:23 -060052
53 /*
54 * Remap NOR flash region to caching-inhibited
55 * so that flash can be erased/programmed properly.
56 */
57
58 /* Flush d-cache and invalidate i-cache of any FLASH data */
59 flush_dcache();
60 invalidate_icache();
61
62 /* Invalidate existing TLB entry for NOR flash */
63 disable_tlb(0);
64 set_tlb(1, (CONFIG_SYS_FLASH_BASE2 & 0xf0000000),
65 (CONFIG_SYS_FLASH_BASE2 & 0xf0000000),
66 MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
67 0, 0, BOOKE_PAGESZ_256M, 1);
68
69 flash_cs_fixup();
70
71 return 0;
72}
73
74#if defined(CONFIG_OF_BOARD_SETUP)
75void ft_board_setup(void *blob, bd_t *bd)
76{
77#ifdef CONFIG_PCI
78 ft_board_pci_setup(blob, bd);
79#endif
80 ft_cpu_setup(blob, bd);
81}
82#endif