diff options
| -rw-r--r-- | CHANGELOG | 7 | ||||
| -rw-r--r-- | drivers/cfi_flash.c | 27 |
2 files changed, 11 insertions, 23 deletions
@@ -2,6 +2,13 @@ Changes for U-Boot 1.1.4: ====================================================================== +* Optimize flash_make_cmd in drivers/cfi_flash.c for little endian + Fix "WARNING: flash_make_cmd: unsuppported LittleEndian mode" + message when probing for nonexistent flash in little endian mode. + As a side effect more efficient and smaller code is generated, + which is always a Good Thing (TM). + Patch by Ladislav Michl, 24 Sep 2005 + * Update for TFTP using a fixed UDP port Use the approved environment variable names. Added "tftpdstp" to allow ports other than 69 per Tolunay Orkun's recommendation. diff --git a/drivers/cfi_flash.c b/drivers/cfi_flash.c index 3d0f20450..7957dd5f9 100644 --- a/drivers/cfi_flash.c +++ b/drivers/cfi_flash.c @@ -47,7 +47,6 @@ #include <common.h> #include <asm/processor.h> #include <asm/byteorder.h> -#include <linux/byteorder/swab.h> #include <environment.h> #ifdef CFG_FLASH_CFI_DRIVER @@ -797,32 +796,14 @@ static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c) static void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf) { int i; - -#if defined(__LITTLE_ENDIAN) - ushort stmpw; - uint stmpi; -#endif uchar *cp = (uchar *) cmdbuf; - for (i = 0; i < info->portwidth; i++) - *cp++ = ((i + 1) & (info->chipwidth - 1)) ? '\0' : cmd; #if defined(__LITTLE_ENDIAN) - switch (info->portwidth) { - case FLASH_CFI_8BIT: - break; - case FLASH_CFI_16BIT: - stmpw = *(ushort *) cmdbuf; - *(ushort *) cmdbuf = __swab16 (stmpw); - break; - case FLASH_CFI_32BIT: - stmpi = *(uint *) cmdbuf; - *(uint *) cmdbuf = __swab32 (stmpi); - break; - default: - puts ("WARNING: flash_make_cmd: unsuppported LittleEndian mode\n"); - break; - } + for (i = info->portwidth; i > 0; i--) +#else + for (i = 1; i <= info->portwidth; i++) #endif + *cp++ = (i % info->chipwidth) ? '\0' : cmd; } /* |