Flashrom support for some Numonyx parts (M25PE)

Using block erase d8 as discussed with Peter Stuge

Corresponding to flashrom svn r333 and coreboot v2 svn r3707.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>

1 files changed, 23 insertions, 0 deletions

diff --git a/spi.c b/spi.c
index 0028b4c..83624fa 100644
--- a/spi.c
+++ b/spi.c
@@ -310,6 +310,29 @@ int spi_block_erase_d8(const struct flashchip *flash, unsigned long addr)
 	return 0;
 }
 
+int spi_chip_erase_d8(struct flashchip *flash)
+{
+	int i, rc = 0;
+	int total_size = flash->total_size * 1024;
+	int erase_size = 64 * 1024;
+
+	spi_disable_blockprotect();
+
+	printf("Erasing chip: \n");
+
+	for (i = 0; i < total_size / erase_size; i++) {
+		rc = spi_block_erase_d8(flash, i * erase_size);
+		if (rc) {
+			printf("Error erasing block at 0x%x\n", i);
+			break;
+		}
+	}
+
+	printf("\n");
+
+	return rc;
+}
+
 /* Sector size is usually 4k, though Macronix eliteflash has 64k */
 int spi_sector_erase(const struct flashchip *flash, unsigned long addr)
 {