slimbootloader

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Stanley Chang 9e18d1a9e4 fix: correct offset and value for disabling SPI prefetching and caching

This commit corrects the SaveAndDisableSpiPrefetchCache by applying the
correct offset (3:2) and value (b'01) to disable Prefetching and Caching.

Additionally, the following improvements were made:

1. Aligned V_SPI_BCR_SRC_PREF_DIS_CACHE_DIS with EDS.

2. Enhanced performance and reliability by switching from MmioAndThenOr32 to
   MmioAndThenOr8.

3. Introduced N_SPI_BCR_SRC (the offset)

4. Removed unused constants: V_SPI_BCR_SRC_PREF_EN_CACHE_EN,
   V_SPI_BCR_SRC_PREF_DIS_CACHE_EN, N_SPI_BCR_SYNC_SS, and B_SPI_BCR_SYNC_SS

Verified with TGL RVP, EHL CRB, and TWL CRB

Discussion: https://groups.io/g/slimbootloader/topic/spi_write_and_read_cycle/113260279
Signed-off-by: Stanley Chang <stanley.chang@intel.com>

2025-06-03 10:41:36 -07:00

AlderlakePkg

fix: [ADL] Refactor the UpdateResetReason #2442

2025-05-20 10:36:20 -07:00

ApollolakePkg

[APL] Cleanup: Remove unused smbus library

2025-03-12 15:11:37 -07:00

ArrowlakePkg

fix: [ARLH] fixed build failure in ARLH/U

2025-02-20 11:32:02 +08:00

CoffeelakePkg

feat: [CFL] add ResetSystemLib