nand/raw/mxc_nand.c

734 	uint16_t col;
749 	col = host->col_addr >> 1;
753 		nfc_word.word = readw(&spare_buf[col]);
755 		nfc_word.word = readw(&main_buf[col]);
773 	uint16_t col, ret;
776 	pr_debug("mxc_nand_read_word(col = %d)\n", host->col_addr);
778 	col = host->col_addr;
780 	if (col < mtd->writesize && host->spare_only)
781 		col += mtd->writesize;
783 	if (col < mtd->writesize) {
785 				(col >> 1));
788 				((col - mtd->writesize) >> 1));
791 	if (col & 1) {
809 	host->col_addr = col + 2;
824 	int n, col, i = 0;
826 	pr_debug("mxc_nand_write_buf(col = %d, len = %d)\n", host->col_addr,
829 	col = host->col_addr;
832 	if (col < mtd->writesize && host->spare_only)
833 		col += mtd->writesize;
835 	n = mtd->writesize + mtd->oobsize - col;
838 	pr_debug("%s:%d: col = %d, n = %d\n", __func__, __LINE__, col, n);
843 		if (col < mtd->writesize) {
844 			p = host->regs->main_area[0] + (col & ~3);
847 						mtd->writesize + (col & ~3);
853 		if (((col | (unsigned long)&buf[i]) & 3) || n < 4) {
860 			nfc_word.bytes[col & 3] = buf[i++];
862 			col++;
866 			int m = mtd->writesize - col;
868 			if (col >= mtd->writesize)
873 			pr_debug("%s:%d: n = %d, m = %d, i = %d, col = %d\n",
874 				 __func__,  __LINE__, n, m, i, col);
877 			col += m;
883 	host->col_addr = col;
895 	int n, col, i = 0;
897 	pr_debug("mxc_nand_read_buf(col = %d, len = %d)\n", host->col_addr,
900 	col = host->col_addr;
903 	if (col < mtd->writesize && host->spare_only)
904 		col += mtd->writesize;
906 	n = mtd->writesize + mtd->oobsize - col;
912 		if (col < mtd->writesize) {
913 			p = host->regs->main_area[0] + (col & ~3);
916 					mtd->writesize + (col & ~3);
919 		if (((col | (int)&buf[i]) & 3) || n < 4) {
926 			buf[i++] = nfc_word.bytes[col & 3];
928 			col++;
930 			int m = mtd->writesize - col;
932 			if (col >= mtd->writesize)
938 			col += m;
944 	host->col_addr = col;
983 	pr_debug("mxc_nand_command (cmd = 0x%x, col = 0x%x, page = 0x%x)\n",
1067 			/* another col addr cycle for 2k page */