Add support for Spansion S25FL127S.

This flash chip can be configured (one time) to use 64 KiB or 256 KiB sectors.
Additionally, in the 64 KiB mode it supports 16 4 KiB sub-sectors that can be
(one time) programmed to be on the top or bottom of the device. The sub-sectors
can be erased with the 0x20 opcode but because this opcode does not work
with the remaining sectors and flashrom can not cope with that the 0x20
opcode is not supported yet.

This patch adds two definitions, one for the 64 KiB and 256 KiB configuration
respectively. The device also shares the RDID with the various S25FL128
devices so we have to increase the maximum number of successfully probed
chips to 8.

The 64 KiB mode was tested on real hardware.

Signed-off-by: Jernej Škrabec <jernej.skrabec@planet.si>
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>

git-svn-id: https://code.coreboot.org/svn/flashrom/trunk@1858 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 77 insertions, 0 deletions

diff --git a/flashchips.c b/flashchips.c
index 173f429..20cfc1e 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -10464,6 +10464,83 @@ const struct flashchip flashchips[] = {
 
 	{
 		.vendor		= "Spansion",
+		.name		= "S25FL127S-64kB", /* hybrid: 32 (top or bottom) 4 kB sub-sectors + 64 kB sectors */
+		.bustype	= BUS_SPI,
+		.manufacture_id	= SPANSION_ID,
+		.model_id	= SPANSION_S25FL128,
+		.total_size	= 16384,
+		.page_size	= 256,
+		/* supports 4B addressing */
+		/* OTP: 1024B total, 32B reserved; read 0x4B; write 0x42 */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_OK_PREW,
+		/* FIXME: we should distinguish the configuration on probing time like we do for AT45DB chips */
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	= {
+			{
+				/* This chip supports erasing of 32 so-called "parameter sectors" with
+				 * opcode 0x20 which may be configured to be on top or bottom of the address
+				 * space. Trying to access an address outside these 4kB blocks does have no
+				 * effect on the memory contents, e.g.
+				.eraseblocks = {
+					{4 * 1024, 32},
+					{64 * 1024, 254} // inaccessible
+				},
+				.block_erase = spi_block_erase_20,
+			}, { */
+				.eraseblocks = { { 64 * 1024, 256} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { { 16384 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { { 16384 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_bp2_srwd,
+		.unlock		= spi_disable_blockprotect_bp2_srwd, /* #WP pin write-protects SRWP bit. */
+		.write		= spi_chip_write_256, /* Multi I/O supported */
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Spansion",
+		.name		= "S25FL127S-256kB", /* uniform 256kB sectors */
+		.bustype	= BUS_SPI,
+		.manufacture_id	= SPANSION_ID,
+		.model_id	= SPANSION_S25FL128,
+		.total_size	= 16384,
+		.page_size	= 512,
+		/* supports 4B addressing */
+		/* OTP: 1024B total, 32B reserved; read 0x4B; write 0x42 */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	= {
+			{
+				.eraseblocks = { {256 * 1024, 64} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { { 16384 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { { 16384 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_bp2_srwd,
+		.unlock		= spi_disable_blockprotect_bp2_srwd, /* #WP pin write-protects SRWP bit. */
+		.write		= spi_chip_write_256, /* Multi I/O supported */
+		.read		= spi_chip_read, /* Fast read (0x0B) and multi I/O supported */
+		.voltage	= {2700, 3600},
+	},
+
+	{
+		.vendor		= "Spansion",
 		.name		= "S25FL128P......0", /* uniform 64 kB sectors */
 		.bustype	= BUS_SPI,
 		.manufacture_id	= SPANSION_ID,