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flashchips: Split GD25Q127C/GD25Q128C and add GD25Q128E

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Q127C and Q128C are not the same. Q127C doesn't support QPI but Q128C
does. So we need to split the existing GD25Q127C/GD25Q128C into two
separated entries. We also introduce the new flashchip Q128E and merge
it into Q127C.

Datasheets:
Q128E: https://www.gigadevice.com.cn/Public/Uploads/uploadfile/files/20220714/DS-00480-GD25Q128E-Rev1.2.pdf
Q127C: https://www.gigadevice.com.cn/Public/Uploads/uploadfile/files/20220714/DS-00220-GD25Q127C-Rev2.3.pdf
Q128C: https://www.endrich.com/sixcms/media.php/2/GD25Q128C-Rev2.pdf

Q128E and Q127C/Q128C have compatible main functions, their differences
are:
* Q128E uses 55 nm process, while Q127C/Q128C use 65nm
* Q128E/Q127C does not support QPI
* Q128E/Q127C have OTP: 3072B, while Q128C are 1536B
* Q128E's fast read clock frequency is 133MHz, while Q127C/Q128C are
  104MHZ

So we decided to merge Q128E into Q127C.

We also tested that Q128E could pass flashrom_tester while probing it as
127C/128C, so the main functionalities are compatible.

Change the chip name from GD25Q127C/GD25Q128C to two entries
GD25Q127C/GD25Q128E and GD25Q128C to make it more accurate.

Chip revision history:
- The 'GD25Q127C/GD25Q128C' definition was added in
  `commit e0c7abf219b81ad049d09a4671ebc9196153d308` as 'GD25Q128C' and
  later renamed to 'GD25Q127C/GD25Q128C'

BUG=b:304863141, b:293545382
BRANCH=none
TEST=flashrom_tester with flashrom binary could pass with Q128E,
     which contains probe, read, write, erase, and write protect

Signed-off-by: Hsuan Ting Chen <roccochen@google.com>
Change-Id: I3300671b1cf74b3ea0469b9c5a833489ab4914f5
Reviewed-on: https://review.coreboot.org/c/flashrom/+/78348
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
This commit is contained in:
Hsuan Ting Chen
2023-11-14 18:47:26 +08:00
committed by Anastasia Klimchuk
parent 41cb46672e
commit abd9a1e9e8
2 changed files with 52 additions and 2 deletions
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2
include/flashchips.h
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@ -390,7 +390,7 @@
#define GIGADEVICE_GD25Q16 0x4015 /* Same as GD25Q16B (which has OTP) */
#define GIGADEVICE_GD25Q32 0x4016 /* Same as GD25Q32B */
#define GIGADEVICE_GD25Q64 0x4017 /* Same as GD25Q64B */
#define GIGADEVICE_GD25Q128 0x4018 /* GD25Q128B and GD25Q128C only, can be distinguished by SFDP */
#define GIGADEVICE_GD25Q128 0x4018 /* Same as GD25Q128B, GD25Q127C, GD25Q128C, and GD25Q128E, can be distinguished by SFDP */
#define GIGADEVICE_GD25Q256D 0x4019
#define GIGADEVICE_GD25VQ21B 0x4212
#define GIGADEVICE_GD25VQ41B 0x4213 /* Same as GD25VQ40C, can be distinguished by SFDP */