* (C) Copyright 2002
* Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de>
*
+ * (C) Copyright 2002
+ * Auerswald GmbH & Co KG, Germany
+ * Kai-Uwe Bloem <kai-uwe.bloem@auerswald.de>
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
#include <common.h>
#include <asm/arch/pxa-regs.h>
-#define FLASH_BANK_SIZE 0x02000000
-#define MAIN_SECT_SIZE 0x40000 /* 2x16 = 256k per sector */
+/* Debugging macros ------------------------------------------------------ */
+
+#undef FLASH_DEBUG
+
+/* Some debug macros */
+#if (FLASH_DEBUG > 2 )
+#define PRINTK3(args...) printf(args)
+#else
+#define PRINTK3(args...)
+#endif
+
+#if FLASH_DEBUG > 1
+#define PRINTK2(args...) printf(args)
+#else
+#define PRINTK2(args...)
+#endif
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+#ifdef FLASH_DEBUG
+#define PRINTK(args...) printf(args)
+#else
+#define PRINTK(args...)
+#endif
+/* ------------------------------------------------------------------------ */
+
+/* Development system: we have only 16 MB Flash */
+#ifdef CONFIG_MTD_INNOKOM_16MB
+#define FLASH_BANK_SIZE 0x01000000 /* 16 MB (during development) */
+#define MAIN_SECT_SIZE 0x00020000 /* 128k per sector */
+#endif
+
+/* Production system: we have 64 MB Flash */
+#ifdef CONFIG_MTD_INNOKOM_64MB
+#define FLASH_BANK_SIZE 0x04000000 /* 64 MB */
+#define MAIN_SECT_SIZE 0x00020000 /* 128k per sector */
+#endif
+
+flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
/**
* flash_init: - initialize data structures for flash chips
int i, j;
ulong size = 0;
- for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+ for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
ulong flashbase = 0;
flash_info[i].flash_id =
- (INTEL_MANUFACT & FLASH_VENDMASK) |
- (INTEL_ID_28F128J3 & FLASH_TYPEMASK);
+ (INTEL_MANUFACT & FLASH_VENDMASK) |
+ (INTEL_ID_28F128J3 & FLASH_TYPEMASK);
flash_info[i].size = FLASH_BANK_SIZE;
- flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
- memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
+ flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT;
+ memset(flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT);
switch (i) {
case 0:
flashbase = PHYS_FLASH_1;
break;
default:
- panic("configured to many flash banks!\n");
+ panic("configured too many flash banks!\n");
break;
}
for (j = 0; j < flash_info[i].sector_count; j++) {
size += flash_info[i].size;
}
- /* Protect monitor and environment sectors */
+ /* Protect u-boot sectors */
flash_protect(FLAG_PROTECT_SET,
- CFG_FLASH_BASE,
- CFG_FLASH_BASE + _armboot_end_data - _armboot_start,
+ CONFIG_SYS_FLASH_BASE,
+ CONFIG_SYS_FLASH_BASE + (256*1024) - 1,
&flash_info[0]);
-#ifdef CFG_ENV_IS_IN_FLASH
+#ifdef CONFIG_ENV_IS_IN_FLASH
flash_protect(FLAG_PROTECT_SET,
- CFG_ENV_ADDR,
- CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
+ CONFIG_ENV_ADDR,
+ CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1,
&flash_info[0]);
#endif
{
int i, j;
- for (j=0; j<CFG_MAX_FLASH_BANKS; j++) {
+ for (j=0; j<CONFIG_SYS_MAX_FLASH_BANKS; j++) {
switch (info->flash_id & FLASH_VENDMASK) {
{
int flag, prot, sect;
int rc = ERR_OK;
+ ulong start;
if (info->flash_id == FLASH_UNKNOWN)
return ERR_UNKNOWN_FLASH_TYPE;
printf("Erasing sector %2d ... ", sect);
+ PRINTK("\n");
+
/* arm simple, non interrupt dependent timer */
- reset_timer_masked();
+ start = get_timer(0);
if (info->protect[sect] == 0) { /* not protected */
- u32 * volatile addr = (u32 * volatile)(info->start[sect]);
-
- /* erase sector: */
- /* The strata flashs are aligned side by side on */
- /* the data bus, so we have to write the commands */
- /* to both chips here: */
-
- *addr = 0x00200020; /* erase setup */
- *addr = 0x00D000D0; /* erase confirm */
-
- while ((*addr & 0x00800080) != 0x00800080) {
- if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) {
- *addr = 0x00B000B0; /* suspend erase*/
- *addr = 0x00FF00FF; /* read mode */
+ u16 * volatile addr = (u16 * volatile)(info->start[sect]);
+
+ PRINTK("unlocking sector\n");
+ *addr = 0x0060;
+ *addr = 0x00d0;
+ *addr = 0x00ff;
+
+ PRINTK("erasing sector\n");
+ *addr = 0x0020;
+ PRINTK("confirming erase\n");
+ *addr = 0x00D0;
+
+ while ((*addr & 0x0080) != 0x0080) {
+ PRINTK(".");
+ if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) {
+ *addr = 0x00B0; /* suspend erase*/
+ *addr = 0x00FF; /* read mode */
rc = ERR_TIMOUT;
goto outahere;
}
}
- *addr = 0x00500050; /* clear status register cmd. */
- *addr = 0x00FF00FF; /* resest to read mode */
-
+ PRINTK("clearing status register\n");
+ *addr = 0x0050;
+ PRINTK("resetting to read mode");
+ *addr = 0x00FF;
}
printf("ok.\n");
static int write_word (flash_info_t *info, ulong dest, ushort data)
{
- ushort *addr = (ushort *)dest, val;
+ volatile u16 *addr = (u16 *)dest, val;
int rc = ERR_OK;
int flag;
+ ulong start;
/* Check if Flash is (sufficiently) erased */
if ((*addr & data) != data) return ERR_NOT_ERASED;
*addr = data;
/* arm simple, non interrupt dependent timer */
- reset_timer_masked();
+ start = get_timer(0);
/* wait while polling the status register */
while(((val = *addr) & 0x80) != 0x80) {
- if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) {
+ if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
rc = ERR_TIMOUT;
*addr = 0xB0; /* suspend program command */
goto outahere;
* @param info:
* @param src: source of copy transaction
* @param addr: where to copy to
- * @param cnt: number of bytes to copy
+ * @param cnt: number of bytes to copy
*
* @return error code
*/
return write_word(info, wp, data);
}
-
projects / u-boot / blobdiff