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-rw-r--r--target/u-boot/2009.01-rc1/u-boot-2009.01-rc1-016-cmd_mem.patch412
1 files changed, 412 insertions, 0 deletions
diff --git a/target/u-boot/2009.01-rc1/u-boot-2009.01-rc1-016-cmd_mem.patch b/target/u-boot/2009.01-rc1/u-boot-2009.01-rc1-016-cmd_mem.patch
new file mode 100644
index 000000000..bac2f935f
--- /dev/null
+++ b/target/u-boot/2009.01-rc1/u-boot-2009.01-rc1-016-cmd_mem.patch
@@ -0,0 +1,412 @@
+diff -urN u-boot-2009.01-0rig//common/cmd_mem.c u-boot-2009.01/common/cmd_mem.c
+--- u-boot-2009.01-0rig//common/cmd_mem.c 2008-12-16 23:48:27.000000000 +0100
++++ u-boot-2009.01/common/cmd_mem.c 2009-01-04 13:27:03.000000000 +0100
+@@ -37,11 +37,120 @@
+ #endif
+ #include <watchdog.h>
+
++#include <flash.h>
++#ifdef CONFIG_SYS_NO_FLASH
++#define in_flash(x) 0
++#else
++#define in_flash(x) (addr2info(x)!=NULL)
++#endif
++
++#ifdef CONFIG_HAS_DATAFLASH
++#define in_dataflash(x) addr_dataflash(x)
++#else
++#define in_dataflash(x) 0
++#endif
++
++#ifdef CONFIG_CMD_MMC
++#define in_SD_card(x) (mmc2info(x) != 0)
++#else
++#define in_SD_card(x) 0
++#endif
++
++
+ #ifdef CMD_MEM_DEBUG
+ #define PRINTF(fmt,args...) printf (fmt ,##args)
+ #else
+ #define PRINTF(fmt,args...)
+ #endif
++#if defined(CONFIG_HAS_DATAFLASH)
++#define DF_PAGE_VALID 0x01
++#define CONFIG_SYS_DATAFLASH_PAGE_SIZE 1056
++typedef char dfpagebuf[CONFIG_SYS_DATAFLASH_PAGE_SIZE];
++dfpagebuf dfcache[3]; // Cache buffers for dataflash
++unsigned char dfvalid[3]; // if DF_PAGE_VALID is set, then the, cache buffer contents are valid
++unsigned char dflru[3]; // Least recently used algorithm to determine which buffer to reuse
++unsigned int dfpage[3]; // TLB for cache, tells which page is loaded into dfcache
++
++
++void flush_mem_cache(void)
++{
++ dfvalid[0] = dfvalid[1] = dfvalid[2] = 0;
++ dflru[0] = 0;
++ dflru[1] = 1;
++ dflru[2] = 2;
++}
++
++typedef union {
++ uchar byte[4];
++ ulong word;
++} reg;
++
++unsigned int replace(char *p, unsigned int data)
++{
++ ulong i;
++ reg in;
++ reg out;
++
++ in.word = data;
++ for(i = 0; i <= 3; i++) {
++ out.byte[0] = *p;
++ *p++ = in.byte[0];
++ }
++ return out.word;
++}
++
++ulong translate(unsigned int addr)
++{
++ unsigned int page = (addr) / CONFIG_SYS_DATAFLASH_PAGE_SIZE;
++ unsigned int index = (addr) - (page * CONFIG_SYS_DATAFLASH_PAGE_SIZE);
++ unsigned int i,rc;
++ for(i = 0; i < 2; i++) {
++ if((page == dfpage[i]) && (dfvalid[i] & DF_PAGE_VALID)) {
++ if(dflru[0] == i) {
++ // nothing
++ } else if(dflru[1] == i) {
++ // swap with 0
++ dflru[1] = dflru[0];
++ dflru[0] = i;
++ } else {
++ // shift down
++ dflru[2] = dflru[1];
++ dflru[1] = dflru[0];
++ dflru[0] = i;
++ }
++ return (unsigned int) &dfcache[i][index];
++ }
++ }
++ // not found
++ // use buffer found in dflru[2]
++ i = dflru[2];
++ if ((rc = read_dataflash(addr, CONFIG_SYS_DATAFLASH_PAGE_SIZE, dfcache[i])) == DATAFLASH_OK){
++ dflru[2] = dflru[1];
++ dflru[1] = dflru[0];
++ dflru[0] = i;
++ dfvalid[i] |= DF_PAGE_VALID;
++ return (unsigned int) &dfcache[i][index];
++ }
++ return 0;
++}
++
++
++
++void df_writed(unsigned char *ldest, ulong laddr)
++{
++
++}
++void df_writew(unsigned char *ldest,ushort laddr) {}
++void df_writeb(unsigned char *ldest, u_char laddr) {}
++#endif
++
++#if defined(CONFIG_HAS_DATAFLASH)
++void flush_mem_cache(void);
++ulong translate(unsigned int addr);
++#else
++#define flush_mem_cache(x)
++#define translate(x) x
++#endif
+
+ static int mod_mem(cmd_tbl_t *, int, int, int, char *[]);
+
+@@ -67,7 +176,8 @@
+ ulong nbytes, linebytes;
+ #endif
+ int size;
+- int rc = 0;
++ int rc = 0;
++ int done = 0;
+
+ /* We use the last specified parameters, unless new ones are
+ * entered.
+@@ -106,26 +216,29 @@
+ * We buffer all read data, so we can make sure data is read only
+ * once, and all accesses are with the specified bus width.
+ */
+- nbytes = length * size;
+- do {
+- char linebuf[DISP_LINE_LEN];
+- void* p;
+- linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes;
+-
+- rc = read_dataflash(addr, (linebytes/size)*size, linebuf);
+- p = (rc == DATAFLASH_OK) ? linebuf : (void*)addr;
+- print_buffer(addr, p, size, linebytes/size, DISP_LINE_LEN/size);
+-
+- nbytes -= linebytes;
+- addr += linebytes;
+- if (ctrlc()) {
+- rc = 1;
+- break;
+- }
+- } while (nbytes > 0);
+-#else
++ if(in_dataflash(addr)) {
++ nbytes = length * size;
++ do {
++ char linebuf[DISP_LINE_LEN];
++ void* p;
++ linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes;
++
++ rc = read_dataflash(addr, (linebytes/size)*size, linebuf);
++ p = (rc == DATAFLASH_OK) ? linebuf : (void*)addr;
++ print_buffer(addr, p, size, linebytes/size, DISP_LINE_LEN/size);
++
++ nbytes -= linebytes;
++ addr += linebytes;
++ if (ctrlc()) {
++ rc = 1;
++ break;
++ }
++ } while (nbytes > 0);
++ done = 1;
++ }
++#endif
+
+-# if defined(CONFIG_BLACKFIN)
++#if defined(CONFIG_BLACKFIN)
+ /* See if we're trying to display L1 inst */
+ if (addr_bfin_on_chip_mem(addr)) {
+ char linebuf[DISP_LINE_LEN];
+@@ -142,15 +255,15 @@
+ break;
+ }
+ } while (nbytes > 0);
+- } else
+-# endif
++ done = 1;
++ }
++#endif
+
+- {
++ if (!done) {
+ /* Print the lines. */
+ print_buffer(addr, (void*)addr, size, length, DISP_LINE_LEN/size);
+ addr += size*length;
+ }
+-#endif
+
+ dp_last_addr = addr;
+ dp_last_length = length;
+@@ -273,6 +386,8 @@
+ int do_mem_cmp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+ {
+ ulong addr1, addr2, count, ngood;
++ ulong laddr1, laddr2;
++
+ int size;
+ int rcode = 0;
+
+@@ -294,12 +409,6 @@
+
+ count = simple_strtoul(argv[3], NULL, 16);
+
+-#ifdef CONFIG_HAS_DATAFLASH
+- if (addr_dataflash(addr1) | addr_dataflash(addr2)){
+- puts ("Comparison with DataFlash space not supported.\n\r");
+- return 0;
+- }
+-#endif
+
+ #ifdef CONFIG_BLACKFIN
+ if (addr_bfin_on_chip_mem(addr1) || addr_bfin_on_chip_mem(addr2)) {
+@@ -308,9 +417,12 @@
+ }
+ #endif
+
++ flush_mem_cache();
+ ngood = 0;
+
+ while (count-- > 0) {
++ laddr1 = translate((ulong) addr1);
++ laddr2 = translate((ulong) addr2);
+ if (size == 4) {
+ ulong word1 = *(ulong *)addr1;
+ ulong word2 = *(ulong *)addr2;
+@@ -359,6 +471,14 @@
+ {
+ ulong addr, dest, count;
+ int size;
++#ifdef CONFIG_HAS_DATAFLASH
++ int rc;
++ unsigned int crc,oldcrc,use_crc;
++ unsigned int olddata;
++ char *p;
++ char *env_crc_check;
++
++#endif
+
+ if (argc != 4) {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+@@ -385,13 +505,14 @@
+
+ #ifndef CONFIG_SYS_NO_FLASH
+ /* check if we are copying to Flash */
+- if ( (addr2info(dest) != NULL)
+-#ifdef CONFIG_HAS_DATAFLASH
+- && (!addr_dataflash(dest))
+-#endif
+- ) {
++ if (in_flash(dest)) {
+ int rc;
+-
++#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_CMD_MMC)
++ if(in_dataflash(addr) || in_SD_card(addr)) {
++ puts ("Cannot copy to flash from storage...\n");
++ return 1;
++ }
++#endif
+ puts ("Copy to Flash... ");
+
+ rc = flash_write ((char *)addr, dest, count*size);
+@@ -405,9 +526,15 @@
+ #endif
+
+ #if defined(CONFIG_CMD_MMC)
+- if (mmc2info(dest)) {
++ if (in_SD_card(dest)) {
+ int rc;
+
++#if defined(CONFIG_HAS_DATAFLASH)
++ if(in_dataflash(addr) || in_SD_card(addr)) {
++ puts ("Cannot copy to flash-card from another storage location...\n");
++ return 1;
++ }
++#endif
+ puts ("Copy to MMC... ");
+ switch (rc = mmc_write ((uchar *)addr, dest, count*size)) {
+ case 0:
+@@ -424,9 +551,12 @@
+ return 0;
+ }
+
+- if (mmc2info(addr)) {
++ if (in_SD_card(addr)) {
+ int rc;
+-
++ if(in_flash(dest) || in_dataflash(dest) || in_SD_card(dest)) {
++ puts ("Cannot copy from flash-card from another storage location...\n");
++ return 1;
++ }
+ puts ("Copy from MMC... ");
+ switch (rc = mmc_read (addr, (uchar *)dest, count*size)) {
+ case 0:
+@@ -445,39 +575,64 @@
+ #endif
+
+ #ifdef CONFIG_HAS_DATAFLASH
+- /* Check if we are copying from RAM or Flash to DataFlash */
+- if (addr_dataflash(dest) && !addr_dataflash(addr)){
+- int rc;
+-
+- puts ("Copy to DataFlash... ");
+-
+- rc = write_dataflash (dest, addr, count*size);
+-
++ /* Check if we are copying from Dataflash to RAM */
++ /* Note: Cannot copy from Dataflash to Flash directly */
++ env_crc_check = getenv("crc-check");
++ use_crc = (strcmp(env_crc_check, "on") == 0);
++ if (in_dataflash(addr)) {
++ if(in_dataflash(dest) || in_flash(dest) || in_SD_card(dest)) {
++ puts ("Cannot copy to dataflash from another storage location...\n");
++ return 1;
++ }
++ puts ("Copy from DataFlash...");
++ rc = read_dataflash(addr, count * size, (char *) dest);
+ if (rc != 1) {
+ dataflash_perror (rc);
+ return (1);
+ }
+- puts ("done\n");
+- return 0;
+- }
+
+- /* Check if we are copying from DataFlash to RAM */
+- if (addr_dataflash(addr) && !addr_dataflash(dest)
+-#ifndef CONFIG_SYS_NO_FLASH
+- && (addr2info(dest) == NULL)
+-#endif
+- ){
+- int rc;
+- rc = read_dataflash(addr, count * size, (char *) dest);
++ if (use_crc) {
++ puts ("(Calculating CRC) ... ");
++ p = (char *) dest + (count * size) + 3;
++ olddata = replace(p,0);
++ rc = read_dataflash(addr, (count * size)+4, (char *) dest);
++ oldcrc = replace(p,olddata);
++ crc = crc32 (0, (const uchar *) dest, count*size);
++ if(crc != oldcrc) {
++ printf("\n\rBad CRC, %x expected, found %x... \n\r",oldcrc,crc);
++ return 1;
++ } else {
++ printf("[0x%x]",crc);
++ }
++ }
++ puts ("done\n\r");
++ return 0;
++ } else if (!in_dataflash(addr) && in_dataflash(dest)) {
++ if(in_dataflash(addr) || in_SD_card(addr)) {
++ puts ("Cannot copy to dataflash from another storage location...\n");
++ return 1;
++ }
++ puts ("Copy to DataFlash... ");
++ if (use_crc) {
++ puts ("(Calulating CRC) ... ");
++ crc = crc32 (0, (const uchar *) addr, count*size);
++ // Save CRC in small endian format
++ printf("= 0x%08x written to [%08x] ... ",crc,(unsigned int) (dest + count * size));
++ p = (char *) addr+(count*size);
++ olddata = replace(p,crc);
++ rc = write_dataflash (dest, addr, count*size+4);
++ crc = replace((char *) addr+(count*size),olddata);
++ } else {
++ rc = write_dataflash (dest, addr, count*size);
++ }
+ if (rc != 1) {
+ dataflash_perror (rc);
+ return (1);
+ }
++ puts ("done\n");
+ return 0;
+- }
+-
+- if (addr_dataflash(addr) && addr_dataflash(dest)){
+- puts ("Unsupported combination of source/destination.\n\r");
++ } else if (in_dataflash(addr) && in_dataflash(dest)){
++ puts ("Cannot copy between two dataflash areas\n\r");
+ return 1;
+ }
+ #endif
+@@ -490,6 +645,7 @@
+ }
+ #endif
+
++ /* Copy between RAM locations, or parallell flash to RAM */
+ while (count-- > 0) {
+ if (size == 4)
+ *((ulong *)dest) = *((ulong *)addr);
+@@ -1011,7 +1167,7 @@
+ }
+
+ #ifdef CONFIG_HAS_DATAFLASH
+- if (addr_dataflash(addr)){
++ if (in_dataflash(addr)){
+ puts ("Can't modify DataFlash in place. Use cp instead.\n\r");
+ return 0;
+ }
+
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