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Code Issues Releases Wiki Activity

Enable 4BA mode for Spansion 25FL256S

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4BA mode is entered by setting bit 7 for the extended address register.

Change-Id: I807bf55d65763a9f48a6a3377f14f4e5288a7a4c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Tested-by: Michael Fuckner <michael@fuckner.net>
Reviewed-on: https://review.coreboot.org/25133
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
This commit is contained in:
Nico Huber
2018-03-13 18:14:52 +01:00
parent 57dbd64b33
commit 86bddb5d52
4 changed files with 12 additions and 8 deletions
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2
spi25.c
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@ -849,6 +849,8 @@ static int spi_enter_exit_4ba(struct flashctx *const flash, const bool enter)
ret = spi_send_command(flash, sizeof(cmd), 0, &cmd, NULL);
else if (flash->chip->feature_bits & FEATURE_4BA_ENTER_WREN)
ret = spi_simple_write_cmd(flash, cmd, 0);
else if (flash->chip->feature_bits & FEATURE_4BA_ENTER_EAR7)
ret = spi_set_extended_address(flash, enter ? 0x80 : 0x00);
if (!ret)
flash->in_4ba_mode = enter;