[flashrom] [PATCH] Use max_rom_decode for wbsio_spi

[Carl-Daniel Hailfinger]

Use the max_rom_decode infrastructure for wbsio_spi instead of
open-coding a variant which only aborts after it is too late.

Signed-off-by: Carl-Daniel Hailfinger

diff -ur flashrom-partial_write_spi_intermediate/flash.h flashrom-wbsio_max_decode/flash.h
--- flashrom-partial_write_spi_intermediate/flash.h	2010-07-11 00:05:36.000000000 +0200
+++ flashrom-wbsio_max_decode/flash.h	2010-07-11 00:15:31.000000000 +0200
@@ -716,7 +716,6 @@
 int wbsio_spi_send_command(unsigned int writecnt, unsigned int readcnt,
    	      const unsigned char *writearr, unsigned char *readarr);
 int wbsio_spi_read(struct flashchip *flash, uint8_t *buf, int start, int len);
-int wbsio_spi_write_1(struct flashchip *flash, uint8_t *buf, int start, int len);

/* serprog.c */
 int serprog_init(void);
diff -ur flashrom-partial_write_spi_intermediate/spi.c flashrom-wbsio_max_decode/spi.c
--- flashrom-partial_write_spi_intermediate/spi.c	2010-07-11 00:09:26.000000000 +0200
+++ flashrom-wbsio_max_decode/spi.c	2010-07-11 00:16:22.000000000 +0200
@@ -80,7 +80,7 @@
    	.command = wbsio_spi_send_command,
    	.multicommand = default_spi_send_multicommand,
    	.read = wbsio_spi_read,
-		.write_256 = wbsio_spi_write_1,
+		.write_256 = spi_chip_write_1_new,
    },
 #endif
 #endif
diff -ur flashrom-partial_write_spi_intermediate/wbsio_spi.c flashrom-wbsio_max_decode/wbsio_spi.c
--- flashrom-partial_write_spi_intermediate/wbsio_spi.c	2010-07-09 19:09:49.000000000 +0200
+++ flashrom-wbsio_max_decode/wbsio_spi.c	2010-07-11 00:18:38.000000000 +0200
@@ -69,6 +69,9 @@

buses_supported |= CHIP_BUSTYPE_SPI;
    spi_controller = SPI_CONTROLLER_WBSIO;
+	msg_pdbg("%s: Winbond saved on 4 register bits so max chip size is "
+		 "1024 KB!\n", __func__);
+	max_rom_decode.spi = 1024 * 1024;

return 0;
 }
@@ -179,24 +182,7 @@

int wbsio_spi_read(struct flashchip *flash, uint8_t *buf, int start, int len)
 {
-	int size = flash->total_size * 1024;
-
-	if (size > 1024 * 1024) {
-		msg_perr("%s: Winbond saved on 4 register bits so max chip size is 1024 KB!\n", __func__);
-		return 1;
-	}
-
    return read_memmapped(flash, buf, start, len);
 }

-int wbsio_spi_write_1(struct flashchip *flash, uint8_t *buf, int start, int len)
-{
-	if (flash->total_size * 1024 > 1024 * 1024) {
-		msg_perr("%s: Winbond saved on 4 register bits so max chip size is 1024 KB!\n", __func__);
-		return 1;
-	}
-
-	return spi_chip_write_1_new(flash, buf, start, len);
-}
-
 #endif