diff options
Diffstat (limited to 'board/bf533-ezkit/flash.c')
| -rw-r--r-- | board/bf533-ezkit/flash.c | 83 |
1 files changed, 43 insertions, 40 deletions
diff --git a/board/bf533-ezkit/flash.c b/board/bf533-ezkit/flash.c index 067a260906..299cdbae73 100644 --- a/board/bf533-ezkit/flash.c +++ b/board/bf533-ezkit/flash.c @@ -1,7 +1,7 @@ /* * U-boot - flash.c Flash driver for PSD4256GV * - * Copyright (c) 2005 blackfin.uclinux.org + * Copyright (c) 2005-2007 Analog Devices Inc. * This file is based on BF533EzFlash.c originally written by Analog Devices, Inc. * * (C) Copyright 2000-2004 @@ -22,8 +22,8 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA */ #include <asm/io.h> @@ -178,63 +178,66 @@ 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 ret; - - ret = write_data(addr, cnt, 1, (int *)src); + int d; + if (addr % 2) { + read_flash(addr - 1 - CFG_FLASH_BASE, &d); + d = (int)((d & 0x00FF) | (*src++ << 8)); + ret = write_data(addr - 1, 2, (uchar *) & d); + if (ret == FLASH_FAIL) + return ERR_NOT_ERASED; + ret = write_data(addr + 1, cnt - 1, src); + } else + ret = write_data(addr, cnt, src); if (ret == FLASH_FAIL) return ERR_NOT_ERASED; return FLASH_SUCCESS; } -int write_data(long lStart, long lCount, long lStride, int *pnData) +int write_data(long lStart, long lCount, uchar * pnData) { long i = 0; - int j = 0; unsigned long ulOffset = lStart - CFG_FLASH_BASE; int d; - int iShift = 0; - int iNumWords = 2; - int nLeftover = lCount % 4; int nSector = 0; + int flag = 0; - for (i = 0; (i < lCount / 4) && (i < BUFFER_SIZE); i++) { - for (iShift = 0, j = 0; (j < iNumWords); - j++, ulOffset += (lStride * 2)) { - if ((ulOffset >= INVALIDLOCNSTART) - && (ulOffset < INVALIDLOCNEND)) { - printf - ("Invalid locations, Try writing to another location \n"); - return FLASH_FAIL; - } - get_sector_number(ulOffset, &nSector); - read_flash(ulOffset, &d); - if (d != 0xffff) { - printf - ("Flash not erased at offset 0x%x Please erase to reprogram \n", - ulOffset); - return FLASH_FAIL; - } - unlock_flash(ulOffset); - if (write_flash(ulOffset, (pnData[i] >> iShift)) < 0) { - printf("Error programming the flash \n"); - return FLASH_FAIL; - } - iShift += 16; - } + if (lCount % 2) { + flag = 1; + lCount = lCount - 1; } - if (nLeftover > 0) { - if ((ulOffset >= INVALIDLOCNSTART) - && (ulOffset < INVALIDLOCNEND)) + + for (i = 0; i < lCount - 1; i += 2, ulOffset += 2) { + get_sector_number(ulOffset, &nSector); + read_flash(ulOffset, &d); + if (d != 0xffff) { + printf + ("Flash not erased at offset 0x%x Please erase to reprogram \n", + ulOffset); return FLASH_FAIL; + } + unlock_flash(ulOffset); + d = (int)(pnData[i] | pnData[i + 1] << 8); + write_flash(ulOffset, d); + if (poll_toggle_bit(ulOffset) < 0) { + printf("Error programming the flash \n"); + return FLASH_FAIL; + } + if ((i > 0) && (!(i % AFP_SectorSize2))) + printf("."); + } + if (flag) { get_sector_number(ulOffset, &nSector); read_flash(ulOffset, &d); if (d != 0xffff) { printf - ("Flash already programmed. Please erase to reprogram \n"); - printf("uloffset = 0x%x \t d = 0x%x\n", ulOffset, d); + ("Flash not erased at offset 0x%x Please erase to reprogram \n", + ulOffset); return FLASH_FAIL; } unlock_flash(ulOffset); - if (write_flash(ulOffset, pnData[i]) < 0) { + d = (int)(pnData[i] | (d & 0xFF00)); + write_flash(ulOffset, d); + if (poll_toggle_bit(ulOffset) < 0) { printf("Error programming the flash \n"); return FLASH_FAIL; } |
