1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/*
* (C) Copyright 2001
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/ppc4xx.h>
#include <asm/processor.h>
/*
* include common flash code (for esd boards)
*/
#include "../common/flash.c"
/*-----------------------------------------------------------------------
* Functions
*/
static ulong flash_get_size (vu_long * addr, flash_info_t * info);
static void flash_get_offsets (ulong base, flash_info_t * info);
/*-----------------------------------------------------------------------
*/
unsigned long flash_init (void)
{
#ifdef __DEBUG_START_FROM_SRAM__
return CONFIG_SYS_DUMMY_FLASH_SIZE;
#else
unsigned long size;
int i;
uint pbcr;
unsigned long base;
int size_val = 0;
debug("[%s, %d] Entering ...\n", __FUNCTION__, __LINE__);
debug("[%s, %d] flash_info = 0x%p ...\n", __func__, __LINE__,
flash_info);
/* Init: no FLASHes known */
for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
flash_info[i].flash_id = FLASH_UNKNOWN;
}
/* Static FLASH Bank configuration here - FIXME XXX */
debug("[%s, %d] Calling flash_get_size ...\n", __FUNCTION__, __LINE__);
size = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
if (flash_info[0].flash_id == FLASH_UNKNOWN) {
printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
size, size<<20);
}
debug("[%s, %d] Test point ...\n", __FUNCTION__, __LINE__);
/* Setup offsets */
flash_get_offsets (-size, &flash_info[0]);
debug("[%s, %d] Test point ...\n", __FUNCTION__, __LINE__);
/* Re-do sizing to get full correct info */
mtdcr(EBC0_CFGADDR, PB0CR);
pbcr = mfdcr(EBC0_CFGDATA);
mtdcr(EBC0_CFGADDR, PB0CR);
base = -size;
switch (size) {
case 1 << 20:
size_val = 0;
break;
case 2 << 20:
size_val = 1;
break;
case 4 << 20:
size_val = 2;
break;
case 8 << 20:
size_val = 3;
break;
case 16 << 20:
size_val = 4;
break;
}
pbcr = (pbcr & 0x0001ffff) | base | (size_val << 17);
mtdcr(EBC0_CFGDATA, pbcr);
debug("[%s, %d] Test point ...\n", __FUNCTION__, __LINE__);
/* Monitor protection ON by default */
(void)flash_protect(FLAG_PROTECT_SET,
-CONFIG_SYS_MONITOR_LEN,
0xffffffff,
&flash_info[0]);
debug("[%s, %d] Test point ...\n", __FUNCTION__, __LINE__);
flash_info[0].size = size;
return (size);
#endif
}
|
