/*
* board/mx1ads/syncflash.c
- *
+ *
* (c) Copyright 2004
* Techware Information Technology, Inc.
* http://www.techware.com.tw/
*/
#include <common.h>
-#include <mc9328.h>
+/*#include <mc9328.h>*/
+#include <asm/arch/imx-regs.h>
typedef unsigned long * p_u32;
#define SYNCFLASH_A10 (0x00100000)
#define CMD_NORMAL (0x81020300) /* Normal Mode */
-#define CMD_PREC (CMD_NORMAL + 0x10000000) /* Precharge Command */
-#define CMD_AUTO (CMD_NORMAL + 0x20000000) /* Auto Refresh Command */
-#define CMD_LMR (CMD_NORMAL + 0x30000000) /* Load Mode Register Command */
-#define CMD_LCR (CMD_NORMAL + 0x60000000) /* LCR Command */
+#define CMD_PREC (CMD_NORMAL + 0x10000000) /* Precharge Command */
+#define CMD_AUTO (CMD_NORMAL + 0x20000000) /* Auto Refresh Command */
+#define CMD_LMR (CMD_NORMAL + 0x30000000) /* Load Mode Register Command */
+#define CMD_LCR (CMD_NORMAL + 0x60000000) /* LCR Command */
#define CMD_PROGRAM (CMD_NORMAL + 0x70000000)
-#define MODE_REG_VAL (CFG_FLASH_BASE+0x0008CC00) /* Cas Latency 3 */
+#define MODE_REG_VAL (CFG_FLASH_BASE+0x0008CC00) /* Cas Latency 3 */
/* LCR Command */
#define LCR_READSTATUS (0x0001C000) /* 0x70 */
#define LCR_PROG_NVMODE (0x00028000) /* 0xA0 */
#define LCR_SR_CLEAR (0x00014000) /* 0x50 */
-
-/* Get Status register */
+/* Get Status register */
u32 SF_SR(void) {
u32 tmp,tmp1;
reg_SFCTL = CMD_PROGRAM;
- tmp = __REG(CFG_FLASH_BASE);
-
+ tmp = __REG(CFG_FLASH_BASE);
+
reg_SFCTL = CMD_NORMAL;
- reg_SFCTL = CMD_LCR; /* Activate LCR Mode */
- tmp1 = __REG(CFG_FLASH_BASE + LCR_SR_CLEAR);
+ reg_SFCTL = CMD_LCR; /* Activate LCR Mode */
+ tmp1 = __REG(CFG_FLASH_BASE + LCR_SR_CLEAR);
return tmp;
}
-/* check if SyncFlash is ready */
+/* check if SyncFlash is ready */
u8 SF_Ready(void) {
u32 tmp;
if ((tmp & 0x00000080) && (tmp & 0x0000001C)) {
printf ("SyncFlash Error code %08x\n",tmp);
-
};
- if (tmp == 0x00800080) /* Test Bit 7 of SR */
+ if (tmp == 0x00800080) /* Test Bit 7 of SR */
return 1;
else
return 0;
}
-/* Issue the precharge all command */
+/* Issue the precharge all command */
void SF_PrechargeAll(void) {
u32 tmp;
- reg_SFCTL = CMD_PREC; /* Set Precharge Command */
- tmp = __REG(CFG_FLASH_BASE + SYNCFLASH_A10); /* Issue Precharge All Command */
-
+ reg_SFCTL = CMD_PREC; /* Set Precharge Command */
+ tmp = __REG(CFG_FLASH_BASE + SYNCFLASH_A10); /* Issue Precharge All Command */
}
/* set SyncFlash to normal mode */
void SF_Normal(void) {
SF_PrechargeAll();
-
+
reg_SFCTL = CMD_NORMAL;
}
-/* Erase SyncFlash */
+/* Erase SyncFlash */
void SF_Erase(u32 RowAddress) {
u32 tmp;
reg_SFCTL = CMD_NORMAL;
- tmp = __REG(RowAddress);
+ tmp = __REG(RowAddress);
reg_SFCTL = CMD_PREC;
- tmp = __REG(RowAddress);
-
- reg_SFCTL = CMD_LCR; /* Set LCR mode */
- __REG(RowAddress + LCR_ERASE_CONFIRM) = 0; /* Issue Erase Setup Command */
-
- reg_SFCTL = CMD_NORMAL; /* return to Normal mode */
- __REG(RowAddress) = 0xD0D0D0D0; /* Confirm */
+ tmp = __REG(RowAddress);
+
+ reg_SFCTL = CMD_LCR; /* Set LCR mode */
+ __REG(RowAddress + LCR_ERASE_CONFIRM) = 0; /* Issue Erase Setup Command */
+
+ reg_SFCTL = CMD_NORMAL; /* return to Normal mode */
+ __REG(RowAddress) = 0xD0D0D0D0; /* Confirm */
while(!SF_Ready());
}
-
void SF_NvmodeErase(void) {
SF_PrechargeAll();
reg_SFCTL = CMD_LCR; /* Set to LCR mode */
__REG(CFG_FLASH_BASE + LCR_ERASE_NVMODE) = 0; /* Issue Erase Nvmode Reg Command */
-
- reg_SFCTL = CMD_NORMAL; /* Return to Normal mode */
- __REG(CFG_FLASH_BASE + LCR_ERASE_NVMODE) = 0xC0C0C0C0; /* Confirm */
+
+ reg_SFCTL = CMD_NORMAL; /* Return to Normal mode */
+ __REG(CFG_FLASH_BASE + LCR_ERASE_NVMODE) = 0xC0C0C0C0; /* Confirm */
while(!SF_Ready());
}
void SF_NvmodeWrite(void) {
SF_PrechargeAll();
- reg_SFCTL = CMD_LCR; /* Set to LCR mode */
+ reg_SFCTL = CMD_LCR; /* Set to LCR mode */
__REG(CFG_FLASH_BASE+LCR_PROG_NVMODE) = 0; /* Issue Program Nvmode reg command */
-
- reg_SFCTL = CMD_NORMAL; /* Return to Normal mode */
- __REG(CFG_FLASH_BASE+LCR_PROG_NVMODE) = 0xC0C0C0C0; /* Confirm not needed */
+ reg_SFCTL = CMD_NORMAL; /* Return to Normal mode */
+ __REG(CFG_FLASH_BASE+LCR_PROG_NVMODE) = 0xC0C0C0C0; /* Confirm not needed */
}
-
/****************************************************************************************/
ulong flash_init(void) {
/* Turn on CSD1 for negating RESETSF of SyncFLash */
- reg_SFCTL |= 0x80000000; /* enable CSD1 for SyncFlash */
+ reg_SFCTL |= 0x80000000; /* enable CSD1 for SyncFlash */
udelay(200);
- reg_SFCTL = CMD_LMR; /* Set Load Mode Register Command */
- tmp = __REG(MODE_REG_VAL); /* Issue Load Mode Register Command */
+ reg_SFCTL = CMD_LMR; /* Set Load Mode Register Command */
+ tmp = __REG(MODE_REG_VAL); /* Issue Load Mode Register Command */
SF_Normal();
-
+
i = 0;
- flash_info[i].flash_id = FLASH_MAN_MT | FLASH_MT28S4M16LC;
-
- flash_info[i].size = FLASH_BANK_SIZE;
+ flash_info[i].flash_id = FLASH_MAN_MT | FLASH_MT28S4M16LC;
+
+ 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);
for (j = 0; j < flash_info[i].sector_count; j++) {
flash_info[i].start[j] = CFG_FLASH_BASE + j * 0x00100000;
}
-
+
flash_protect(FLAG_PROTECT_SET,
CFG_FLASH_BASE,
CFG_FLASH_BASE + monitor_flash_len - 1,
&flash_info[0]);
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]);
return FLASH_BANK_SIZE;
}
-
void flash_print_info (flash_info_t *info) {
int i;
printf("Unknown Vendor ");
break;
}
-
-
+
switch (info->flash_id & FLASH_TYPEMASK) {
case (FLASH_MT28S4M16LC & FLASH_TYPEMASK):
printf("2x FLASH_MT28S4M16LC (16MB Total)\n");
printf(" Sector Start Addresses: ");
for (i = 0; i < info->sector_count; i++) {
- if ((i % 5) == 0)
+ if ((i % 5) == 0)
printf ("\n ");
printf (" %08lX%s", info->start[i],
info->protect[i] ? " (RO)" : " ");
}
-
+
printf ("\n");
}
-
/*-----------------------------------------------------------------------*/
int flash_erase (flash_info_t *info, int s_first, int s_last) {
if (info->flash_id == FLASH_UNKNOWN)
return ERR_UNKNOWN_FLASH_TYPE;
- if ((s_first < 0) || (s_first > s_last))
+ if ((s_first < 0) || (s_first > s_last))
return ERR_INVAL;
- if ((info->flash_id & FLASH_VENDMASK) != (FLASH_MAN_MT & FLASH_VENDMASK))
+ if ((info->flash_id & FLASH_VENDMASK) != (FLASH_MAN_MT & FLASH_VENDMASK))
return ERR_UNKNOWN_FLASH_VENDOR;
prot = 0;
for (sect = s_first; sect <= s_last; ++sect) {
- if (info->protect[sect])
+ if (info->protect[sect])
prot++;
}
-
+
if (prot) {
printf("protected!\n");
return ERR_PROTECTED;
/* Start erase on unprotected sectors */
for (sect = s_first; sect <= s_last && !ctrlc(); sect++) {
-
+
printf("Erasing sector %2d ... ", sect);
/* arm simple, non interrupt dependent timer */
return rc;
}
-
-
/*-----------------------------------------------------------------------
* Copy memory to flash.
*/
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) {
int i;
- for(i = 0; i < cnt; i += 4) {
+ for(i = 0; i < cnt; i += 4) {
SF_PrechargeAll();
}
SF_Normal();
-
+
return ERR_OK;
}
-
-
projects / karo-tx-uboot.git / blobdiff