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authorMasahiro Yamada <yamada.m@jp.panasonic.com>2014-12-15 23:26:14 +0900
committerTom Rini <trini@ti.com>2015-01-05 12:08:52 -0500
commitacc2372db020b9415142e93a1c30f57c1d3aa5c2 (patch)
treebc2f4191b2ab6da5557fb61d15aca18ac954a54b /board/lwmon/flash.c
parentf017cd7f71fa98be4b3222a7c314ef000296c51a (diff)
downloadu-boot-acc2372db020b9415142e93a1c30f57c1d3aa5c2.tar.gz
mpc8xx: remove lwmon board support
This board is still a non-generic board. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'board/lwmon/flash.c')
-rw-r--r--board/lwmon/flash.c632
1 files changed, 0 insertions, 632 deletions
diff --git a/board/lwmon/flash.c b/board/lwmon/flash.c
deleted file mode 100644
index cb60c418a1..0000000000
--- a/board/lwmon/flash.c
+++ /dev/null
@@ -1,632 +0,0 @@
-/*
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-/* #define DEBUG */
-
-#include <common.h>
-#include <mpc8xx.h>
-
-#if defined(CONFIG_ENV_IS_IN_FLASH)
-# ifndef CONFIG_ENV_ADDR
-# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
-# endif
-# ifndef CONFIG_ENV_SIZE
-# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE
-# endif
-# ifndef CONFIG_ENV_SECT_SIZE
-# define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE
-# endif
-#endif
-
-/*---------------------------------------------------------------------*/
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static ulong flash_get_size (vu_long *addr, flash_info_t *info);
-static int write_data (flash_info_t *info, ulong dest, ulong data);
-#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
-static int write_data_buf (flash_info_t * info, ulong dest, uchar * cp, int len);
-#endif
-static void flash_get_offsets (ulong base, flash_info_t *info);
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long flash_init (void)
-{
- volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
- volatile memctl8xx_t *memctl = &immap->im_memctl;
- unsigned long size_b0, size_b1;
- int i;
-
- /* 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 ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_PRELIM);
-
- size_b0 = 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: "
- "ID 0x%lx, Size = 0x%08lx = %ld MB\n",
- flash_info[0].flash_id,
- size_b0, size_b0<<20);
- }
-
- debug ("## Get flash bank 2 size @ 0x%08x\n",FLASH_BASE1_PRELIM);
-
- size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]);
-
- debug ("## Prelim. Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1);
-
- if (size_b1 > size_b0) {
- printf ("## ERROR: "
- "Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n",
- size_b1, size_b1<<20,
- size_b0, size_b0<<20
- );
- flash_info[0].flash_id = FLASH_UNKNOWN;
- flash_info[1].flash_id = FLASH_UNKNOWN;
- flash_info[0].sector_count = -1;
- flash_info[1].sector_count = -1;
- flash_info[0].size = 0;
- flash_info[1].size = 0;
- return (0);
- }
-
- debug ("## Before remap: "
- "BR0: 0x%08x OR0: 0x%08x "
- "BR1: 0x%08x OR1: 0x%08x\n",
- memctl->memc_br0, memctl->memc_or0,
- memctl->memc_br1, memctl->memc_or1);
-
- /* Remap FLASH according to real size */
- memctl->memc_or0 = (-size_b0 & 0xFFFF8000) | CONFIG_SYS_OR_TIMING_FLASH |
- OR_CSNT_SAM | OR_ACS_DIV1;
- memctl->memc_br0 = (CONFIG_SYS_FLASH_BASE & BR_BA_MSK) | BR_PS_32 | BR_V;
-
- debug ("## BR0: 0x%08x OR0: 0x%08x\n",
- memctl->memc_br0, memctl->memc_or0);
-
- /* Re-do sizing to get full correct info */
- size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE, &flash_info[0]);
-
- flash_get_offsets (CONFIG_SYS_FLASH_BASE, &flash_info[0]);
-
- flash_info[0].size = size_b0;
-
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
- /* monitor protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
- &flash_info[0]);
-#endif
-
-#ifdef CONFIG_ENV_IS_IN_FLASH
- /* ENV protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1,
- &flash_info[0]);
-#endif
-
- if (size_b1) {
- memctl->memc_or1 = (-size_b1 & 0xFFFF8000) | CONFIG_SYS_OR_TIMING_FLASH |
- OR_CSNT_SAM | OR_ACS_DIV1;
- memctl->memc_br1 = ((CONFIG_SYS_FLASH_BASE + size_b0) & BR_BA_MSK) |
- BR_PS_32 | BR_V;
-
- debug ("## BR1: 0x%08x OR1: 0x%08x\n",
- memctl->memc_br1, memctl->memc_or1);
-
- /* Re-do sizing to get full correct info */
- size_b1 = flash_get_size((vu_long *)(CONFIG_SYS_FLASH_BASE + size_b0),
- &flash_info[1]);
-
- flash_info[1].size = size_b1;
-
- flash_get_offsets (CONFIG_SYS_FLASH_BASE + size_b0, &flash_info[1]);
-
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
- /* monitor protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
- &flash_info[1]);
-#endif
-
-#ifdef CONFIG_ENV_IS_IN_FLASH
- /* ENV protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1,
- &flash_info[1]);
-#endif
- } else {
- memctl->memc_br1 = 0; /* invalidate bank */
- memctl->memc_or1 = 0; /* invalidate bank */
-
- debug ("## DISABLE BR1: 0x%08x OR1: 0x%08x\n",
- memctl->memc_br1, memctl->memc_or1);
-
- flash_info[1].flash_id = FLASH_UNKNOWN;
- flash_info[1].sector_count = -1;
- flash_info[1].size = 0;
- }
-
- debug ("## Final Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1);
-
- return (size_b0 + size_b1);
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_get_offsets (ulong base, flash_info_t *info)
-{
- int i;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- return;
- }
-
- switch (info->flash_id & FLASH_VENDMASK) {
- case FLASH_MAN_INTEL:
- for (i = 0; i < info->sector_count; i++) {
- info->start[i] = base;
- base += 0x00020000 * 2; /* 128k * 2 chips per bank */
- }
- return;
-
- default:
- printf ("Don't know sector ofsets for flash type 0x%lx\n",
- info->flash_id);
- return;
- }
-}
-
-/*-----------------------------------------------------------------------
- */
-void flash_print_info (flash_info_t *info)
-{
- int i;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- printf ("missing or unknown FLASH type\n");
- return;
- }
-
- switch (info->flash_id & FLASH_VENDMASK) {
- case FLASH_MAN_AMD: printf ("AMD "); break;
- case FLASH_MAN_FUJ: printf ("Fujitsu "); break;
- case FLASH_MAN_SST: printf ("SST "); break;
- case FLASH_MAN_STM: printf ("STM "); break;
- case FLASH_MAN_INTEL: printf ("Intel "); break;
- case FLASH_MAN_MT: printf ("MT "); break;
- default: printf ("Unknown Vendor "); break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_28F320J3A: printf ("28F320J3A (32Mbit = 128K x 32)\n");
- break;
- case FLASH_28F640J3A: printf ("28F640J3A (64Mbit = 128K x 64)\n");
- break;
- case FLASH_28F128J3A: printf ("28F128J3A (128Mbit = 128K x 128)\n");
- break;
- default: printf ("Unknown Chip Type\n");
- break;
- }
-
- if (info->size >= (1 << 20)) {
- i = 20;
- } else {
- i = 10;
- }
- printf (" Size: %ld %cB in %d Sectors\n",
- info->size >> i,
- (i == 20) ? 'M' : 'k',
- info->sector_count);
-
- printf (" Sector Start Addresses:");
- for (i=0; i<info->sector_count; ++i) {
- if ((i % 5) == 0)
- printf ("\n ");
- printf (" %08lX%s",
- info->start[i],
- info->protect[i] ? " (RO)" : " "
- );
- }
- printf ("\n");
- return;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-
-/*-----------------------------------------------------------------------
- */
-
-/*
- * The following code cannot be run from FLASH!
- */
-
-static ulong flash_get_size (vu_long *addr, flash_info_t *info)
-{
- ulong value;
-
- /* Read Manufacturer ID */
- addr[0] = 0x00900090;
- value = addr[0];
-
- debug ("Manuf. ID @ 0x%08lx: 0x%08lx\n", (ulong)addr, value);
-
- switch (value) {
- case AMD_MANUFACT:
- info->flash_id = FLASH_MAN_AMD;
- break;
- case FUJ_MANUFACT:
- info->flash_id = FLASH_MAN_FUJ;
- break;
- case SST_MANUFACT:
- info->flash_id = FLASH_MAN_SST;
- break;
- case STM_MANUFACT:
- info->flash_id = FLASH_MAN_STM;
- break;
- case INTEL_MANUFACT:
- info->flash_id = FLASH_MAN_INTEL;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- addr[0] = 0x00FF00FF; /* restore read mode */
- return (0); /* no or unknown flash */
- }
-
- value = addr[1]; /* device ID */
-
- debug ("Device ID @ 0x%08lx: 0x%08lx\n", (ulong)(&addr[1]), value);
-
- switch (value) {
- case INTEL_ID_28F320J3A:
- info->flash_id += FLASH_28F320J3A;
- info->sector_count = 32;
- info->size = 0x00400000 * 2;
- break; /* => 8 MB */
-
- case INTEL_ID_28F640J3A:
- info->flash_id += FLASH_28F640J3A;
- info->sector_count = 64;
- info->size = 0x00800000 * 2;
- break; /* => 16 MB */
-
- case INTEL_ID_28F128J3A:
- info->flash_id += FLASH_28F128J3A;
- info->sector_count = 128;
- info->size = 0x01000000 * 2;
- break; /* => 32 MB */
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- addr[0] = 0x00FF00FF; /* restore read mode */
- return (0); /* => no or unknown flash */
-
- }
-
- if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) {
- printf ("** ERROR: sector count %d > max (%d) **\n",
- info->sector_count, CONFIG_SYS_MAX_FLASH_SECT);
- info->sector_count = CONFIG_SYS_MAX_FLASH_SECT;
- }
-
- addr[0] = 0x00FF00FF; /* restore read mode */
-
- return (info->size);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- int flag, prot, sect;
- ulong start, now, last;
-
- debug ("flash_erase: first: %d last: %d\n", s_first, s_last);
-
- if ((s_first < 0) || (s_first > s_last)) {
- if (info->flash_id == FLASH_UNKNOWN) {
- printf ("- missing\n");
- } else {
- printf ("- no sectors to erase\n");
- }
- return 1;
- }
-
- if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL) {
- printf ("Can erase only Intel flash types - aborted\n");
- return 1;
- }
-
- prot = 0;
- for (sect=s_first; sect<=s_last; ++sect) {
- if (info->protect[sect]) {
- prot++;
- }
- }
-
- if (prot) {
- printf ("- Warning: %d protected sectors will not be erased!\n",
- prot);
- } else {
- printf ("\n");
- }
-
- start = get_timer (0);
- last = start;
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- vu_long *addr = (vu_long *)(info->start[sect]);
- unsigned long status;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- *addr = 0x00600060; /* clear lock bit setup */
- *addr = 0x00D000D0; /* clear lock bit confirm */
-
- udelay (1000);
- /* This takes awfully long - up to 50 ms and more */
- while (((status = *addr) & 0x00800080) != 0x00800080) {
- if ((now=get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- *addr = 0x00FF00FF; /* reset to read mode */
- return 1;
- }
-
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- putc ('.');
- last = now;
- }
- udelay (1000); /* to trigger the watchdog */
- }
-
- *addr = 0x00500050; /* clear status register */
- *addr = 0x00200020; /* erase setup */
- *addr = 0x00D000D0; /* erase confirm */
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- while (((status = *addr) & 0x00800080) != 0x00800080) {
- if ((now=get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- *addr = 0x00B000B0; /* suspend erase */
- *addr = 0x00FF00FF; /* reset to read mode */
- return 1;
- }
-
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- putc ('.');
- last = now;
- }
- udelay (1000); /* to trigger the watchdog */
- }
-
- *addr = 0x00FF00FF; /* reset to read mode */
- }
- }
- printf (" done\n");
- return 0;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- * 4 - Flash not identified
- */
-
-#define FLASH_WIDTH 4 /* flash bus width in bytes */
-
-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
- ulong cp, wp, data;
- int i, l, rc;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- return 4;
- }
-
- wp = (addr & ~(FLASH_WIDTH-1)); /* get lower FLASH_WIDTH aligned address */
-
- /*
- * handle unaligned start bytes
- */
- if ((l = addr - wp) != 0) {
- data = 0;
- for (i=0, cp=wp; i<l; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
- for (; i<FLASH_WIDTH && cnt>0; ++i) {
- data = (data << 8) | *src++;
- --cnt;
- ++cp;
- }
- for (; cnt==0 && i<FLASH_WIDTH; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- if ((rc = write_data(info, wp, data)) != 0) {
- return (rc);
- }
- wp += FLASH_WIDTH;
- }
-
- /*
- * handle FLASH_WIDTH aligned part
- */
-#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
- while(cnt >= FLASH_WIDTH) {
- i = CONFIG_SYS_FLASH_BUFFER_SIZE > cnt ?
- (cnt & ~(FLASH_WIDTH - 1)) : CONFIG_SYS_FLASH_BUFFER_SIZE;
- if((rc = write_data_buf(info, wp, src,i)) != 0)
- return rc;
- wp += i;
- src += i;
- cnt -=i;
- }
-#else
- while (cnt >= FLASH_WIDTH) {
- data = 0;
- for (i=0; i<FLASH_WIDTH; ++i) {
- data = (data << 8) | *src++;
- }
- if ((rc = write_data(info, wp, data)) != 0) {
- return (rc);
- }
- wp += FLASH_WIDTH;
- cnt -= FLASH_WIDTH;
- }
-#endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */
-
- if (cnt == 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i=0, cp=wp; i<FLASH_WIDTH && cnt>0; ++i, ++cp) {
- data = (data << 8) | *src++;
- --cnt;
- }
- for (; i<FLASH_WIDTH; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- return (write_data(info, wp, data));
-}
-
-/*-----------------------------------------------------------------------
- * Check flash status, returns:
- * 0 - OK
- * 1 - timeout
- */
-static int flash_status_check(vu_long *addr, ulong tout, char * prompt)
-{
- ulong status;
- ulong start;
-
- /* Wait for command completion */
- start = get_timer (0);
- while(((status = *addr) & 0x00800080) != 0x00800080) {
- if (get_timer(start) > tout) {
- printf("Flash %s timeout at address %p\n", prompt, addr);
- *addr = 0x00FF00FF; /* restore read mode */
- return (1);
- }
- }
- return 0;
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_data (flash_info_t *info, ulong dest, ulong data)
-{
- vu_long *addr = (vu_long *)dest;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*addr & data) != data) {
- return (2);
- }
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- *addr = 0x00400040; /* write setup */
- *addr = data;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- if (flash_status_check(addr, CONFIG_SYS_FLASH_WRITE_TOUT, "write") != 0) {
- return (1);
- }
-
- *addr = 0x00FF00FF; /* restore read mode */
-
- return (0);
-}
-
-#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
-/*-----------------------------------------------------------------------
- * Write a buffer to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- */
-static int write_data_buf(flash_info_t * info, ulong dest, uchar * cp, int len)
-{
- vu_long *addr = (vu_long *)dest;
- int sector;
- int cnt;
- int retcode;
- vu_long * src = (vu_long *)cp;
- vu_long * dst = (vu_long *)dest;
-
- /* find sector */
- for(sector = info->sector_count - 1; sector >= 0; sector--) {
- if(dest >= info->start[sector])
- break;
- }
-
- *addr = 0x00500050; /* clear status */
- *addr = 0x00e800e8; /* write buffer */
-
- if((retcode = flash_status_check(addr, CONFIG_SYS_FLASH_BUFFER_WRITE_TOUT,
- "write to buffer")) == 0) {
- cnt = len / FLASH_WIDTH;
- *addr = (cnt-1) | ((cnt-1) << 16);
- while(cnt-- > 0) {
- *dst++ = *src++;
- }
- *addr = 0x00d000d0; /* write buffer confirm */
- retcode = flash_status_check(addr, CONFIG_SYS_FLASH_BUFFER_WRITE_TOUT,
- "buffer write");
- }
- *addr = 0x00FF00FF; /* restore read mode */
- *addr = 0x00500050; /* clear status */
- return retcode;
-}
-#endif /* CONFIG_SYS_USE_FLASH_BUFFER_WRITE */
-
-/*-----------------------------------------------------------------------
- */