81 lines
2.5 KiB
Diff
81 lines
2.5 KiB
Diff
From 0b59b0dafc219ba73ee2af5404ce626575d74c6f Mon Sep 17 00:00:00 2001
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From: Steffen Mauch <steffen.mauch@gmail.com>
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Date: Sat, 2 Jun 2018 23:46:03 +0200
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Subject: [PATCH] Add support for AT25DF021A
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This is the low-voltage version of the AT25DF021. Tested with FT2232H
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Mini Module
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Change-Id: If4990e6856c8b77567ef4218459cf754b9c6bc57
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Signed-off-by: Steffen Mauch <steffen.mauch@gmail.com>
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Reviewed-on: https://review.coreboot.org/26856
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Reviewed-by: David Hendricks <david.hendricks@gmail.com>
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Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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---
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flashchips.c | 39 +++++++++++++++++++++++++++++++++++++++
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flashchips.h | 1 +
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2 files changed, 40 insertions(+)
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diff --git a/flashchips.c b/flashchips.c
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index 9898fa777..17cb1b4b0 100644
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--- a/flashchips.c
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+++ b/flashchips.c
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@@ -1517,6 +1517,45 @@ const struct flashchip flashchips[] = {
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.voltage = {2700, 3600}, /* 2.3-3.6V & 2.7-3.6V models available */
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},
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+ {
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+ .vendor = "Atmel",
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+ .name = "AT25DF021A",
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+ .bustype = BUS_SPI,
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+ .manufacture_id = ATMEL_ID,
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+ .model_id = ATMEL_AT25DF021A,
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+ .total_size = 256,
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+ .page_size = 256,
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+ /* OTP: 128B total, 64B pre-programmed; read 0x77; write 0x9B */
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+ .feature_bits = FEATURE_WRSR_WREN | FEATURE_OTP,
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+ .tested = TEST_OK_PREW,
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+ .probe = probe_spi_rdid,
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+ .probe_timing = TIMING_ZERO,
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+ .block_erasers =
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+ {
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+ {
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+ .eraseblocks = { {4 * 1024, 64} },
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+ .block_erase = spi_block_erase_20,
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+ }, {
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+ .eraseblocks = { {32 * 1024, 8} },
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+ .block_erase = spi_block_erase_52,
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+ }, {
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+ .eraseblocks = { {64 * 1024, 4} },
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+ .block_erase = spi_block_erase_d8,
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+ }, {
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+ .eraseblocks = { {256 * 1024, 1} },
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+ .block_erase = spi_block_erase_60,
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+ }, {
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+ .eraseblocks = { {256 * 1024, 1} },
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+ .block_erase = spi_block_erase_c7,
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+ }
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+ },
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+ .printlock = spi_prettyprint_status_register_at25df,
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+ .unlock = spi_disable_blockprotect_at2x_global_unprotect,
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+ .write = spi_chip_write_256,
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+ .read = spi_chip_read,
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+ .voltage = {1650, 3600},
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+ },
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+
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{
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.vendor = "Atmel",
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.name = "AT25DF041A",
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diff --git a/flashchips.h b/flashchips.h
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index dfbda5d19..5dedb38e1 100644
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--- a/flashchips.h
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+++ b/flashchips.h
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@@ -128,6 +128,7 @@
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#define ATMEL_ID 0x1F /* Atmel (now used by Adesto) */
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#define ATMEL_AT25DF021 0x4300
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+#define ATMEL_AT25DF021A 0x4301
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#define ATMEL_AT25DF041A 0x4401
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#define ATMEL_AT25DF081 0x4502 /* EDI 0x00. AT25DL081 has same ID + EDI 0x0100 */
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#define ATMEL_AT25DF081A 0x4501 /* Yes, 81A has a lower number than 81 */
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