3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * (C) Copyright 2002 Jun Gu <jung@artesyncp.com>
6 * Add support for Am29F016D and dynamic switch setting.
8 * SPDX-License-Identifier: GPL-2.0+
13 * Wait for completion of each sector erase command issued
15 * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
19 #include <asm/ppc4xx.h>
20 #include <asm/processor.h>
25 #define DEBUGF(x...) printf(x)
30 #define BOOT_SMALL_FLASH 32 /* 00100000 */
31 #define FLASH_ONBD_N 2 /* 00000010 */
32 #define FLASH_SRAM_SEL 1 /* 00000001 */
34 #define BOOT_SMALL_FLASH_VAL 4
35 #define FLASH_ONBD_N_VAL 2
36 #define FLASH_SRAM_SEL_VAL 1
38 static unsigned long flash_addr_table
[8][CONFIG_SYS_MAX_FLASH_BANKS
] = {
39 {0xffc00000, 0xffe00000, 0xff880000}, /* 0:000: configuraton 3 */
40 {0xffc00000, 0xffe00000, 0xff800000}, /* 1:001: configuraton 4 */
41 {0xffc00000, 0xffe00000, 0x00000000}, /* 2:010: configuraton 7 */
42 {0xffc00000, 0xffe00000, 0x00000000}, /* 3:011: configuraton 8 */
43 {0xff800000, 0xffa00000, 0xfff80000}, /* 4:100: configuraton 1 */
44 {0xff800000, 0xffa00000, 0xfff00000}, /* 5:101: configuraton 2 */
45 {0xffc00000, 0xffe00000, 0x00000000}, /* 6:110: configuraton 5 */
46 {0xffc00000, 0xffe00000, 0x00000000} /* 7:111: configuraton 6 */
50 * include common flash code (for amcc boards)
52 #include "../common/flash.c"
54 /*-----------------------------------------------------------------------
57 static ulong
flash_get_size(vu_long
* addr
, flash_info_t
* info
);
60 * Override the weak default mapping function with a board specific one
62 u32
flash_get_bank_size(int cs
, int idx
)
64 u8 reg
= in_8((void *)CONFIG_SYS_FPGA_BASE
);
66 if ((reg
& BOOT_SMALL_FLASH
) && !(reg
& FLASH_ONBD_N
)) {
68 * cs0: small flash (512KiB)
69 * cs2: 2 * big flash (2 * 2MiB)
72 return flash_info
[2].size
;
74 return flash_info
[0].size
+ flash_info
[1].size
;
77 * cs0: 2 * big flash (2 * 2MiB)
78 * cs2: small flash (512KiB)
81 return flash_info
[0].size
+ flash_info
[1].size
;
83 return flash_info
[2].size
;
89 unsigned long flash_init(void)
91 unsigned long total_b
= 0;
92 unsigned long size_b
[CONFIG_SYS_MAX_FLASH_BANKS
];
93 unsigned char *fpga_base
= (unsigned char *)CONFIG_SYS_FPGA_BASE
;
94 unsigned char switch_status
;
95 unsigned short index
= 0;
98 /* read FPGA base register FPGA_REG0 */
99 switch_status
= *fpga_base
;
101 /* check the bitmap of switch status */
102 if (switch_status
& BOOT_SMALL_FLASH
) {
103 index
+= BOOT_SMALL_FLASH_VAL
;
105 if (switch_status
& FLASH_ONBD_N
) {
106 index
+= FLASH_ONBD_N_VAL
;
108 if (switch_status
& FLASH_SRAM_SEL
) {
109 index
+= FLASH_SRAM_SEL_VAL
;
113 DEBUGF("FLASH: Index: %d\n", index
);
115 /* Init: no FLASHes known */
116 for (i
= 0; i
< CONFIG_SYS_MAX_FLASH_BANKS
; ++i
) {
117 flash_info
[i
].flash_id
= FLASH_UNKNOWN
;
118 flash_info
[i
].sector_count
= -1;
119 flash_info
[i
].size
= 0;
121 /* check whether the address is 0 */
122 if (flash_addr_table
[index
][i
] == 0) {
126 /* call flash_get_size() to initialize sector address */
127 size_b
[i
] = flash_get_size((vu_long
*)
128 flash_addr_table
[index
][i
],
130 flash_info
[i
].size
= size_b
[i
];
131 if (flash_info
[i
].flash_id
== FLASH_UNKNOWN
) {
132 printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
133 i
, size_b
[i
], size_b
[i
] << 20);
134 flash_info
[i
].sector_count
= -1;
135 flash_info
[i
].size
= 0;
138 /* Monitor protection ON by default */
139 (void)flash_protect(FLAG_PROTECT_SET
, CONFIG_SYS_MONITOR_BASE
,
140 CONFIG_SYS_MONITOR_BASE
+ CONFIG_SYS_MONITOR_LEN
- 1,
142 #ifdef CONFIG_ENV_IS_IN_FLASH
143 (void)flash_protect(FLAG_PROTECT_SET
, CONFIG_ENV_ADDR
,
144 CONFIG_ENV_ADDR
+ CONFIG_ENV_SECT_SIZE
- 1,
146 (void)flash_protect(FLAG_PROTECT_SET
, CONFIG_ENV_ADDR_REDUND
,
147 CONFIG_ENV_ADDR_REDUND
+ CONFIG_ENV_SECT_SIZE
- 1,
151 total_b
+= flash_info
[i
].size
;