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Add support for AT25DF021A

This is the low-voltage version of the AT25DF021. Tested with FT2232H
Mini Module

Change-Id: If4990e6856c8b77567ef4218459cf754b9c6bc57
Signed-off-by: Steffen Mauch <steffen.mauch@gmail.com>
Reviewed-on: https://review.coreboot.org/26856
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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steffenmauch authored and i-c-o-n committed Jun 2, 2018
1 parent a50b8fd commit 0b59b0dafc219ba73ee2af5404ce626575d74c6f
Showing with 40 additions and 0 deletions.
  1. +39 −0 flashchips.c
  2. +1 −0 flashchips.h
@@ -1517,6 +1517,45 @@ const struct flashchip flashchips[] = {
.voltage = {2700, 3600}, /* 2.3-3.6V & 2.7-3.6V models available */
},

{
.vendor = "Atmel",
.name = "AT25DF021A",
.bustype = BUS_SPI,
.manufacture_id = ATMEL_ID,
.model_id = ATMEL_AT25DF021A,
.total_size = 256,
.page_size = 256,
/* OTP: 128B total, 64B pre-programmed; read 0x77; write 0x9B */
.feature_bits = FEATURE_WRSR_WREN | FEATURE_OTP,
.tested = TEST_OK_PREW,
.probe = probe_spi_rdid,
.probe_timing = TIMING_ZERO,
.block_erasers =
{
{
.eraseblocks = { {4 * 1024, 64} },
.block_erase = spi_block_erase_20,
}, {
.eraseblocks = { {32 * 1024, 8} },
.block_erase = spi_block_erase_52,
}, {
.eraseblocks = { {64 * 1024, 4} },
.block_erase = spi_block_erase_d8,
}, {
.eraseblocks = { {256 * 1024, 1} },
.block_erase = spi_block_erase_60,
}, {
.eraseblocks = { {256 * 1024, 1} },
.block_erase = spi_block_erase_c7,
}
},
.printlock = spi_prettyprint_status_register_at25df,
.unlock = spi_disable_blockprotect_at2x_global_unprotect,
.write = spi_chip_write_256,
.read = spi_chip_read,
.voltage = {1650, 3600},
},

{
.vendor = "Atmel",
.name = "AT25DF041A",
@@ -128,6 +128,7 @@

#define ATMEL_ID 0x1F /* Atmel (now used by Adesto) */
#define ATMEL_AT25DF021 0x4300
#define ATMEL_AT25DF021A 0x4301
#define ATMEL_AT25DF041A 0x4401
#define ATMEL_AT25DF081 0x4502 /* EDI 0x00. AT25DL081 has same ID + EDI 0x0100 */
#define ATMEL_AT25DF081A 0x4501 /* Yes, 81A has a lower number than 81 */

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