diff options
author | TsiChung Liew <Tsi-Chung.Liew@freescale.com> | 2008-03-25 20:41:15 (GMT) |
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committer | John Rigby <jrigby@freescale.com> | 2008-03-31 21:10:29 (GMT) |
commit | bae61eefe15b4d454060a7140e49ae58322be803 (patch) | |
tree | b475fc5b8a9b754da1ac7eabae3ca66630b65c3e /board/freescale | |
parent | 48ead7a7a922fceaf494e352abfab8216a41b417 (diff) | |
download | u-boot-fsl-qoriq-bae61eefe15b4d454060a7140e49ae58322be803.tar.xz |
ColdFire: Add dspi and serial flash support for MCF5445x
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Acked-by: John Rigby <jrigby@freescale.com>
Diffstat (limited to 'board/freescale')
-rw-r--r-- | board/freescale/m54455evb/flash.c | 449 |
1 files changed, 381 insertions, 68 deletions
diff --git a/board/freescale/m54455evb/flash.c b/board/freescale/m54455evb/flash.c index de2cca8..6b50e8d 100644 --- a/board/freescale/m54455evb/flash.c +++ b/board/freescale/m54455evb/flash.c @@ -95,6 +95,11 @@ typedef volatile unsigned char FLASH_PORT_WIDTHV; #define FLASH_28F256P30T 0x00BD /* Intel 28F256P30T ( 256M = 16M x 16 ) */ #define FLASH_28F256P30B 0x00BE /* Intel 28F256P30B ( 256M = 16M x 16 ) */ +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) +#define STM_ID_M25P16 0x20152015 +#define FLASH_M25P16 0x0055 +#endif + #define SYNC __asm__("nop") /*----------------------------------------------------------------------- @@ -111,6 +116,12 @@ void inline spin_wheel(void); void flash_sync_real_protect(flash_info_t * info); uchar intel_sector_protected(flash_info_t * info, ushort sector); +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) +int write_ser_data(flash_info_t * info, ulong dest, uchar * data, ulong cnt); +int serial_flash_read_status(int chipsel); +static int ser_flash_cs = 0; +#endif + flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; ulong flash_init(void) @@ -119,6 +130,10 @@ ulong flash_init(void) ulong size = 0; ulong fbase = 0; +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) + dspi_init(); +#endif + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) { memset(&flash_info[i], 0, sizeof(flash_info_t)); @@ -129,6 +144,11 @@ ulong flash_init(void) case 1: fbase = (ulong) CFG_FLASH1_BASE; break; +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) + case 2: + fbase = (ulong) CFG_FLASH2_BASE; + break; +#endif } flash_get_size((FPWV *) fbase, &flash_info[i]); @@ -152,7 +172,6 @@ int flash_get_offsets(ulong base, flash_info_t * info) { int i, j, k; int sectors, bs, banks; - ulong start; if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_ATM) { int sect[] = CFG_ATMEL_SECT; @@ -196,6 +215,15 @@ int flash_get_offsets(ulong base, flash_info_t * info) *addr16 = (FPW) INTEL_RESET; /* restore read mode */ } +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_STM) { + info->start[0] = CFG_FLASH2_BASE; + for (k = 0, i = 0; i < CFG_STM_SECT; i++, k++) { + info->start[k + 1] = info->start[k] + CFG_STM_SECTSZ; + info->protect[k] = 0; + } + } +#endif return ERR_OK; } @@ -211,6 +239,11 @@ void flash_print_info(flash_info_t * info) case FLASH_MAN_ATM: printf("ATMEL "); break; +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) + case FLASH_MAN_STM: + printf("ST "); + break; +#endif default: printf("Unknown Vendor "); break; @@ -221,8 +254,13 @@ void flash_print_info(flash_info_t * info) printf("AT49BV040A\n"); break; case FLASH_28F128J3A: - printf("Intel 28F128J3A\n"); + printf("28F128J3A\n"); + break; +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) + case FLASH_M25P16: + printf("M25P16\n"); break; +#endif default: printf("Unknown Chip Type\n"); return; @@ -267,6 +305,45 @@ ulong flash_get_size(FPWV * addr, flash_info_t * info) u16 value; int i; +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) + if ((ulong) addr == CFG_FLASH2_BASE) { + int manufactId = 0; + int deviceId = 0; + + ser_flash_cs = 1; + + dspi_tx(ser_flash_cs, 0x80, SER_RDID); + dspi_tx(ser_flash_cs, 0x80, 0); + dspi_tx(ser_flash_cs, 0x80, 0); + dspi_tx(ser_flash_cs, 0x80, 0); + + dspi_rx(); + manufactId = dspi_rx(); + deviceId = dspi_rx() << 8; + deviceId |= dspi_rx(); + + dspi_tx(ser_flash_cs, 0x00, 0); + dspi_rx(); + + switch (manufactId) { + case (u8) STM_MANUFACT: + info->flash_id = FLASH_MAN_STM; + break; + } + + switch (deviceId) { + case (u16) STM_ID_M25P16: + info->flash_id += FLASH_M25P16; + break; + } + + info->sector_count = CFG_STM_SECT; + info->size = CFG_STM_SECT * CFG_STM_SECTSZ; + + return (info->size); + } +#endif + addr[FLASH_CYCLE1] = (FPWV) 0x00AA00AA; /* for Atmel, Intel ignores this */ addr[FLASH_CYCLE2] = (FPWV) 0x00550055; /* for Atmel, Intel ignores this */ addr[FLASH_CYCLE1] = (FPWV) 0x00900090; /* selects Intel or Atmel */ @@ -383,6 +460,21 @@ int flash_cmd_rd(volatile u16 * addr, int index) return (int)addr[index]; } +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) +int serial_flash_read_status(int chipsel) +{ + u16 status; + + dspi_tx(chipsel, 0x80, SER_RDSR); + dspi_rx(); + + dspi_tx(chipsel, 0x00, 0); + status = dspi_rx(); + + return status; +} +#endif + /* * This function gets the u-boot flash sector protection status * (flash_info_t.protect[]) in sync with the sector protection @@ -462,8 +554,11 @@ int flash_erase(flash_info_t * info, int s_first, int s_last) { int flag, prot, sect; ulong type, start, last; - int rcode = 0, intel = 0; - + int rcode = 0, flashtype = 0; +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) + int count; + u16 status; +#endif if ((s_first < 0) || (s_first > s_last)) { if (info->flash_id == FLASH_UNKNOWN) printf("- missing\n"); @@ -474,19 +569,25 @@ int flash_erase(flash_info_t * info, int s_first, int s_last) type = (info->flash_id & FLASH_VENDMASK); - if (type != (FLASH_MAN_INTEL & FLASH_VENDMASK)) { - if (type != (FLASH_MAN_ATM & FLASH_VENDMASK)) { - type = (info->flash_id & FLASH_VENDMASK); - printf - ("Can't erase unknown flash type %08lx - aborted\n", - info->flash_id); - return 1; - } + switch (type) { + case FLASH_MAN_ATM: + flashtype = 1; + break; + case FLASH_MAN_INTEL: + flashtype = 2; + break; +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) + case FLASH_MAN_STM: + flashtype = 3; + break; +#endif + default: + type = (info->flash_id & FLASH_VENDMASK); + printf("Can't erase unknown flash type %08lx - aborted\n", + info->flash_id); + return 1; } - if (type == FLASH_MAN_INTEL) - intel = 1; - prot = 0; for (sect = s_first; sect <= s_last; ++sect) { if (info->protect[sect]) { @@ -503,6 +604,51 @@ int flash_erase(flash_info_t * info, int s_first, int s_last) start = get_timer(0); last = start; +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) + /* Perform bulk erase */ + if (flashtype == 3) { + if ((s_last - s_first) == (CFG_STM_SECT - 1)) { + if (prot == 0) { + dspi_tx(ser_flash_cs, 0x00, SER_WREN); + dspi_rx(); + + status = serial_flash_read_status(ser_flash_cs); + if (((status & 0x9C) != 0) + && ((status & 0x02) != 0x02)) { + printf("Can't erase flash\n"); + return 1; + } + + dspi_tx(ser_flash_cs, 0x00, SER_BULK_ERASE); + dspi_rx(); + + count = 0; + start = get_timer(0); + do { + status = + serial_flash_read_status + (ser_flash_cs); + + if (count++ > 0x10000) { + spin_wheel(); + count = 0; + } + + if (get_timer(start) > + CFG_FLASH_ERASE_TOUT) { + printf("Timeout\n"); + return 1; + } + } while (status & 0x01); + + printf("\b. done\n"); + return 0; + } else if (prot == CFG_STM_SECT) { + return 1; + } + } + } +#endif /* Start erase on unprotected sectors */ for (sect = s_first; sect <= s_last; sect++) { if (info->protect[sect] == 0) { /* not protected */ @@ -515,65 +661,116 @@ int flash_erase(flash_info_t * info, int s_first, int s_last) /* arm simple, non interrupt dependent timer */ start = get_timer(0); - if (intel) { - *addr = (FPW) INTEL_READID; - min = addr[INTEL_CFI_TERB] & 0xff; - min = 1 << min; /* ms */ - min = (min / info->sector_count) * 1000; - - /* start erase block */ - *addr = (FPW) INTEL_CLEAR; /* clear status register */ - *addr = (FPW) INTEL_ERASE; /* erase setup */ - *addr = (FPW) INTEL_CONFIRM; /* erase confirm */ - - while ((*addr & (FPW) INTEL_FINISHED) != - (FPW) INTEL_FINISHED) { - - if (get_timer(start) > - CFG_FLASH_ERASE_TOUT) { - printf("Timeout\n"); - *addr = (FPW) INTEL_SUSERASE; /* suspend erase */ - *addr = (FPW) INTEL_RESET; /* reset to read mode */ - - rcode = 1; - break; + switch (flashtype) { + case 1: + { + FPWV *base; /* first address in bank */ + FPWV *atmeladdr; + + flag = disable_interrupts(); + + atmeladdr = (FPWV *) addr; /* concatenate to 8 bit */ + base = (FPWV *) (CFG_ATMEL_BASE); /* First sector */ + + base[FLASH_CYCLE1] = (u8) 0x00AA00AA; /* unlock */ + base[FLASH_CYCLE2] = (u8) 0x00550055; /* unlock */ + base[FLASH_CYCLE1] = (u8) 0x00800080; /* erase mode */ + base[FLASH_CYCLE1] = (u8) 0x00AA00AA; /* unlock */ + base[FLASH_CYCLE2] = (u8) 0x00550055; /* unlock */ + *atmeladdr = (u8) 0x00300030; /* erase sector */ + + if (flag) + enable_interrupts(); + + while ((*atmeladdr & (u8) 0x00800080) != + (u8) 0x00800080) { + if (get_timer(start) > + CFG_FLASH_ERASE_TOUT) { + printf("Timeout\n"); + *atmeladdr = (u8) 0x00F000F0; /* reset to read mode */ + + rcode = 1; + break; + } } - } - - *addr = (FPW) INTEL_RESET; /* resest to read mode */ - } else { - FPWV *base; /* first address in bank */ - FPWV *atmeladdr; - - flag = disable_interrupts(); - atmeladdr = (FPWV *) addr; /* concatenate to 8 bit */ - base = (FPWV *) (CFG_ATMEL_BASE); /* First sector */ - - base[FLASH_CYCLE1] = (u8) 0x00AA00AA; /* unlock */ - base[FLASH_CYCLE2] = (u8) 0x00550055; /* unlock */ - base[FLASH_CYCLE1] = (u8) 0x00800080; /* erase mode */ - base[FLASH_CYCLE1] = (u8) 0x00AA00AA; /* unlock */ - base[FLASH_CYCLE2] = (u8) 0x00550055; /* unlock */ - *atmeladdr = (u8) 0x00300030; /* erase sector */ + *atmeladdr = (u8) 0x00F000F0; /* reset to read mode */ + break; + } - if (flag) - enable_interrupts(); + case 2: + { + *addr = (FPW) INTEL_READID; + min = addr[INTEL_CFI_TERB] & 0xff; + min = 1 << min; /* ms */ + min = (min / info->sector_count) * 1000; + + /* start erase block */ + *addr = (FPW) INTEL_CLEAR; /* clear status register */ + *addr = (FPW) INTEL_ERASE; /* erase setup */ + *addr = (FPW) INTEL_CONFIRM; /* erase confirm */ + + while ((*addr & (FPW) INTEL_FINISHED) != + (FPW) INTEL_FINISHED) { + + if (get_timer(start) > + CFG_FLASH_ERASE_TOUT) { + printf("Timeout\n"); + *addr = (FPW) INTEL_SUSERASE; /* suspend erase */ + *addr = (FPW) INTEL_RESET; /* reset to read mode */ + + rcode = 1; + break; + } + } - while ((*atmeladdr & (u8) 0x00800080) != - (u8) 0x00800080) { - if (get_timer(start) > - CFG_FLASH_ERASE_TOUT) { - printf("Timeout\n"); - *atmeladdr = (u8) 0x00F000F0; /* reset to read mode */ + *addr = (FPW) INTEL_RESET; /* resest to read mode */ + break; + } - rcode = 1; - break; +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) + case 3: + { + u8 sec = ((ulong) addr >> 16) & 0xFF; + + dspi_tx(ser_flash_cs, 0x00, SER_WREN); + dspi_rx(); + status = + serial_flash_read_status + (ser_flash_cs); + if (((status & 0x9C) != 0) + && ((status & 0x02) != 0x02)) { + printf("Error Programming\n"); + return 1; } - } - *atmeladdr = (u8) 0x00F000F0; /* reset to read mode */ - } /* Atmel or Intel */ + dspi_tx(ser_flash_cs, 0x80, + SER_SECT_ERASE); + dspi_tx(ser_flash_cs, 0x80, sec); + dspi_tx(ser_flash_cs, 0x80, 0); + dspi_tx(ser_flash_cs, 0x00, 0); + + dspi_rx(); + dspi_rx(); + dspi_rx(); + dspi_rx(); + + do { + status = + serial_flash_read_status + (ser_flash_cs); + + if (get_timer(start) > + CFG_FLASH_ERASE_TOUT) { + printf("Timeout\n"); + return 1; + } + } while (status & 0x01); + + break; + } +#endif + } /* switch (flashtype) */ } } printf(" done\n"); @@ -583,6 +780,8 @@ int flash_erase(flash_info_t * info, int s_first, int s_last) int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt) { + int count; + if (info->flash_id == FLASH_UNKNOWN) return 4; @@ -623,7 +822,7 @@ int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt) { ulong cp, wp; u16 data; - int count, i, l, rc, port_width; + int i, l, rc, port_width; /* get lower word aligned address */ wp = addr; @@ -724,6 +923,51 @@ int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt) } /* case FLASH_MAN_INTEL */ +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) + case FLASH_MAN_STM: + { + ulong wp; + u8 *data = (u8 *) src; + int left; /* number of bytes left to program */ + + wp = addr; + + /* page align, each page is 256 bytes */ + if ((wp % 0x100) != 0) { + left = (0x100 - (wp & 0xFF)); + write_ser_data(info, wp, data, left); + cnt -= left; + wp += left; + data += left; + } + + /* page program - 256 bytes at a time */ + if (cnt > 255) { + count = 0; + while (cnt >= 0x100) { + write_ser_data(info, wp, data, 0x100); + cnt -= 0x100; + wp += 0x100; + data += 0x100; + + if (count++ > 0x400) { + spin_wheel(); + count = 0; + } + } + } + + /* remainint bytes */ + if (cnt && (cnt < 256)) { + write_ser_data(info, wp, data, cnt); + wp += cnt; + data += cnt; + cnt -= cnt; + } + + printf("\b."); + } +#endif } /* switch */ return ERR_OK; @@ -844,6 +1088,75 @@ int write_data(flash_info_t * info, ulong dest, FPW data) return (0); } +#if defined(CONFIG_SERIAL_FLASH) && defined(CONFIG_CF_DSPI) +int write_ser_data(flash_info_t * info, ulong dest, uchar * data, ulong cnt) +{ + ulong start; + int status, i; + u8 flashdata; + + /* Check if Flash is (sufficiently) erased */ + dspi_tx(ser_flash_cs, 0x80, SER_READ); + dspi_tx(ser_flash_cs, 0x80, (dest >> 16) & 0xFF); + dspi_tx(ser_flash_cs, 0x80, (dest >> 8) & 0xFF); + dspi_tx(ser_flash_cs, 0x80, dest & 0xFF); + dspi_rx(); + dspi_rx(); + dspi_rx(); + dspi_rx(); + dspi_tx(ser_flash_cs, 0x80, 0); + flashdata = dspi_rx(); + dspi_tx(ser_flash_cs, 0x00, 0); + dspi_rx(); + + if ((flashdata & *data) != *data) { + printf("not erased at %08lx (%lx)\n", (ulong) dest, + (ulong) flashdata); + return (2); + } + + dspi_tx(ser_flash_cs, 0x00, SER_WREN); + dspi_rx(); + + status = serial_flash_read_status(ser_flash_cs); + if (((status & 0x9C) != 0) && ((status & 0x02) != 0x02)) { + printf("Error Programming\n"); + return 1; + } + + start = get_timer(0); + + dspi_tx(ser_flash_cs, 0x80, SER_PAGE_PROG); + dspi_tx(ser_flash_cs, 0x80, ((dest & 0xFF0000) >> 16)); + dspi_tx(ser_flash_cs, 0x80, ((dest & 0xFF00) >> 8)); + dspi_tx(ser_flash_cs, 0x80, (dest & 0xFF)); + dspi_rx(); + dspi_rx(); + dspi_rx(); + dspi_rx(); + + for (i = 0; i < (cnt - 1); i++) { + dspi_tx(ser_flash_cs, 0x80, *data); + dspi_rx(); + data++; + } + + dspi_tx(ser_flash_cs, 0x00, *data); + dspi_rx(); + + do { + status = serial_flash_read_status(ser_flash_cs); + + if (get_timer(start) > CFG_FLASH_ERASE_TOUT) { + printf("Timeout\n"); + return 1; + } + } while (status & 0x01); + + return (0); +} +#endif + /*----------------------------------------------------------------------- * Write a word to Flash for ATMEL FLASH * A word is 16 bits, whichever the bus width of the flash bank |