2
* (C) Copyright 2001-2003
3
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
5
* SPDX-License-Identifier: GPL-2.0+
9
#include <asm/ppc4xx.h>
10
#include <asm/processor.h>
13
* include common flash code (for esd boards)
15
#include "../common/flash.c"
17
/*-----------------------------------------------------------------------
20
static ulong flash_get_size (vu_long * addr, flash_info_t * info);
21
static void flash_get_offsets (ulong base, flash_info_t * info);
23
/*-----------------------------------------------------------------------
26
unsigned long calc_size(unsigned long size)
45
unsigned long flash_init (void)
47
unsigned long size_b0, size_b1;
50
unsigned long base_b0, base_b1;
52
/* Init: no FLASHes known */
53
for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
54
flash_info[i].flash_id = FLASH_UNKNOWN;
57
/* Static FLASH Bank configuration here - FIXME XXX */
59
base_b0 = FLASH_BASE0_PRELIM;
60
size_b0 = flash_get_size ((vu_long *) base_b0, &flash_info[0]);
62
if (flash_info[0].flash_id == FLASH_UNKNOWN) {
63
printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
64
size_b0, size_b0 << 20);
67
base_b1 = FLASH_BASE1_PRELIM;
68
size_b1 = flash_get_size ((vu_long *) base_b1, &flash_info[1]);
70
/* Re-do sizing to get full correct info */
73
if (size_b1 < (1 << 20)) {
74
/* minimum CS size on PPC405GP is 1MB !!! */
78
mtdcr (EBC0_CFGADDR, PB0CR);
79
pbcr = mfdcr (EBC0_CFGDATA);
80
mtdcr (EBC0_CFGADDR, PB0CR);
81
pbcr = (pbcr & 0x0001ffff) | base_b1 | (calc_size(size_b1) << 17);
82
mtdcr (EBC0_CFGDATA, pbcr);
84
printf("size_b1=%x base_b1=%x PB1CR = %x\n",
85
size_b1, base_b1, pbcr); /* test-only */
90
if (size_b0 < (1 << 20)) {
91
/* minimum CS size on PPC405GP is 1MB !!! */
94
base_b0 = base_b1 - size_b0;
95
mtdcr (EBC0_CFGADDR, PB1CR);
96
pbcr = mfdcr (EBC0_CFGDATA);
97
mtdcr (EBC0_CFGADDR, PB1CR);
98
pbcr = (pbcr & 0x0001ffff) | base_b0 | (calc_size(size_b0) << 17);
99
mtdcr (EBC0_CFGDATA, pbcr);
100
#if 0 /* test-only */
101
printf("size_b0=%x base_b0=%x PB0CR = %x\n",
102
size_b0, base_b0, pbcr); /* test-only */
106
size_b0 = flash_get_size ((vu_long *) base_b0, &flash_info[0]);
108
flash_get_offsets (base_b0, &flash_info[0]);
110
/* monitor protection ON by default */
111
flash_protect (FLAG_PROTECT_SET,
112
base_b0 + size_b0 - monitor_flash_len,
113
base_b0 + size_b0 - 1, &flash_info[0]);
116
/* Re-do sizing to get full correct info */
117
size_b1 = flash_get_size ((vu_long *) base_b1, &flash_info[1]);
119
flash_get_offsets (base_b1, &flash_info[1]);
121
/* monitor protection ON by default */
122
flash_protect (FLAG_PROTECT_SET,
123
base_b1 + size_b1 - monitor_flash_len,
124
base_b1 + size_b1 - 1, &flash_info[1]);
125
/* monitor protection OFF by default (one is enough) */
126
flash_protect (FLAG_PROTECT_CLEAR,
127
base_b0 + size_b0 - monitor_flash_len,
128
base_b0 + size_b0 - 1, &flash_info[0]);
130
flash_info[1].flash_id = FLASH_UNKNOWN;
131
flash_info[1].sector_count = -1;
134
flash_info[0].size = size_b0;
135
flash_info[1].size = size_b1;
137
return (size_b0 + size_b1);