ifdtool: Improve PCH strap handling

Read the PCH Strap Length field in FLMAP1 as described in the
"SPI Programming Guide" and print the number of fields specified there.

This code dumps the following straps:
* Intel GM45: 8 straps
* Intel C216: 72 straps
* Intel C240: 360 straps

Add a new function to easily set PCH straps, which is useful for debugging.

Change-Id: Ieb7891b214d82c984379794de9b3fe1a6d0d3466
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41693
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Hug <philipp@hug.cx>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
This commit is contained in:
Patrick Rudolph
2020-05-25 12:18:11 +02:00
committed by Patrick Georgi
parent aeacf8b444
commit 802cbee789
2 changed files with 54 additions and 11 deletions

View File

@@ -105,7 +105,7 @@ typedef struct {
} __attribute__((packed)) fcba_t;
// pch strap
#define MAX_PCHSTRP 18
#define MAX_PCHSTRP 1024
typedef struct {
uint32_t pchstrp[MAX_PCHSTRP];