summaryrefslogtreecommitdiffstats
path: root/common/flash.c
diff options
context:
space:
mode:
authorSascha Hauer <s.hauer@pengutronix.de>2007-07-05 18:01:23 +0200
committerSascha Hauer <sha@octopus.labnet.pengutronix.de>2007-07-05 18:01:23 +0200
commitabfbbad1eb897c58d2ebc918a8b91cf1ea226c5f (patch)
treedd9ea8d7369c4c8e8c04da9725b3eb437980db30 /common/flash.c
parent11a0b5a0dd5f092777de41db00f3ffa8a95d698c (diff)
downloadbarebox-abfbbad1eb897c58d2ebc918a8b91cf1ea226c5f.tar.gz
barebox-abfbbad1eb897c58d2ebc918a8b91cf1ea226c5f.tar.xz
svn_rev_109
do not know anymore
Diffstat (limited to 'common/flash.c')
-rw-r--r--common/flash.c160
1 files changed, 3 insertions, 157 deletions
diff --git a/common/flash.c b/common/flash.c
index a64bc98529..5ea3d56700 100644
--- a/common/flash.c
+++ b/common/flash.c
@@ -24,170 +24,20 @@
/* #define DEBUG */
#include <common.h>
+#include <command.h>
#include <flash.h>
-
-#if !defined(CFG_NO_FLASH)
+#include <cfi_flash.h>
extern flash_info_t flash_info[]; /* info for FLASH chips */
-/*-----------------------------------------------------------------------
- * Functions
- */
-
-/*-----------------------------------------------------------------------
- * Set protection status for monitor sectors
- *
- * The monitor is always located in the _first_ Flash bank.
- * If necessary you have to map the second bank at lower addresses.
- */
-void
-flash_protect (int flag, ulong from, ulong to, flash_info_t *info)
-{
- ulong b_end = info->start[0] + info->size - 1; /* bank end address */
- short s_end = info->sector_count - 1; /* index of last sector */
- int i;
-
- debug ("flash_protect %s: from 0x%08lX to 0x%08lX\n",
- (flag & FLAG_PROTECT_SET) ? "ON" :
- (flag & FLAG_PROTECT_CLEAR) ? "OFF" : "???",
- from, to);
-
- /* Do nothing if input data is bad. */
- if (info->sector_count == 0 || info->size == 0 || to < from) {
- return;
- }
-
- /* There is nothing to do if we have no data about the flash
- * or the protect range and flash range don't overlap.
- */
- if (info->flash_id == FLASH_UNKNOWN ||
- to < info->start[0] || from > b_end) {
- return;
- }
-
- for (i=0; i<info->sector_count; ++i) {
- ulong end; /* last address in current sect */
-
- end = (i == s_end) ? b_end : info->start[i + 1] - 1;
-
- /* Update protection if any part of the sector
- * is in the specified range.
- */
- if (from <= end && to >= info->start[i]) {
- if (flag & FLAG_PROTECT_CLEAR) {
-#if defined(CFG_FLASH_PROTECTION)
- flash_real_protect(info, i, 0);
-#else
- info->protect[i] = 0;
-#endif /* CFG_FLASH_PROTECTION */
- debug ("protect off %d\n", i);
- }
- else if (flag & FLAG_PROTECT_SET) {
-#if defined(CFG_FLASH_PROTECTION)
- flash_real_protect(info, i, 1);
-#else
- info->protect[i] = 1;
-#endif /* CFG_FLASH_PROTECTION */
- debug ("protect on %d\n", i);
- }
- }
- }
-}
-
-/*-----------------------------------------------------------------------
- */
-
flash_info_t *
addr2info (ulong addr)
{
-#ifndef CONFIG_SPD823TS
- flash_info_t *info;
- int i;
-
- for (i=0, info=&flash_info[0]; i<CFG_MAX_FLASH_BANKS; ++i, ++info) {
- if (info->flash_id != FLASH_UNKNOWN &&
- addr >= info->start[0] &&
- /* WARNING - The '- 1' is needed if the flash
- * is at the end of the address space, since
- * info->start[0] + info->size wraps back to 0.
- * Please don't change this unless you understand this.
- */
- addr <= info->start[0] + info->size - 1) {
- return (info);
- }
- }
-#endif /* CONFIG_SPD823TS */
+ printf("%s is broken\n",__FUNCTION__);
return (NULL);
}
-/*-----------------------------------------------------------------------
- * Copy memory to flash.
- * Make sure all target addresses are within Flash bounds,
- * and no protected sectors are hit.
- * Returns:
- * ERR_OK 0 - OK
- * ERR_TIMOUT 1 - write timeout
- * ERR_NOT_ERASED 2 - Flash not erased
- * ERR_PROTECTED 4 - target range includes protected sectors
- * ERR_INVAL 8 - target address not in Flash memory
- * ERR_ALIGN 16 - target address not aligned on boundary
- * (only some targets require alignment)
- */
-int
-flash_write (char *src, ulong addr, ulong cnt)
-{
-#ifdef CONFIG_SPD823TS
- return (ERR_TIMOUT); /* any other error codes are possible as well */
-#else
- int i;
- ulong end = addr + cnt - 1;
- flash_info_t *info_first = addr2info (addr);
- flash_info_t *info_last = addr2info (end );
- flash_info_t *info;
-
- if (cnt == 0) {
- return (ERR_OK);
- }
-
- if (!info_first || !info_last) {
- return (ERR_INVAL);
- }
-
- for (info = info_first; info <= info_last; ++info) {
- ulong b_end = info->start[0] + info->size; /* bank end addr */
- short s_end = info->sector_count - 1;
- for (i=0; i<info->sector_count; ++i) {
- ulong e_addr = (i == s_end) ? b_end : info->start[i + 1];
-
- if ((end >= info->start[i]) && (addr < e_addr) &&
- (info->protect[i] != 0) ) {
- return (ERR_PROTECTED);
- }
- }
- }
-
- /* finally write data to flash */
- for (info = info_first; info <= info_last && cnt>0; ++info) {
- ulong len;
-
- len = info->start[0] + info->size - addr;
- if (len > cnt)
- len = cnt;
- if ((i = write_buff(info, (uchar *)src, addr, len)) != 0) {
- return (i);
- }
- cnt -= len;
- addr += len;
- src += len;
- }
- return (ERR_OK);
-#endif /* CONFIG_SPD823TS */
-}
-
-/*-----------------------------------------------------------------------
- */
-
void flash_perror (int err)
{
switch (err) {
@@ -222,7 +72,3 @@ void flash_perror (int err)
break;
}
}
-
-/*-----------------------------------------------------------------------
- */
-#endif /* !CFG_NO_FLASH */