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author | Mate Kukri <kukri.mate@gmail.com> | 2020-07-04 11:20:07 +0200 |
---|---|---|
committer | Angel Pons <th3fanbus@gmail.com> | 2020-08-02 12:07:08 +0000 |
commit | e231949b78fee38dca823bc76467f81166e00995 (patch) | |
tree | 7491ddcfebdf48cc42895a57d1a40fd5c538fd45 /src/soc/intel/baytrail/iosf.c | |
parent | 32b93c94e0e1d7f4b083bc9a63cfad61c6ac870a (diff) | |
download | coreboot-e231949b78fee38dca823bc76467f81166e00995.tar.xz |
soc/intel/baytrail: Add native refcode replacement
- This is a reverse engineered re-implementation of refcode.elf on
Bay Trail
- Tested on GBYT4, should work everywhere as it's meant to behave
exactly the same as the binary refcode
Signed-off-by: Mate Kukri <kukri.mate@gmail.com>
Change-Id: I91977c509022b0078804dc151d27296260e24bc4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43133
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/baytrail/iosf.c')
-rw-r--r-- | src/soc/intel/baytrail/iosf.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/soc/intel/baytrail/iosf.c b/src/soc/intel/baytrail/iosf.c index 5a8331057e..21060eee1a 100644 --- a/src/soc/intel/baytrail/iosf.c +++ b/src/soc/intel/baytrail/iosf.c @@ -15,7 +15,7 @@ static inline uint32_t read_iosf_reg(int reg) } /* Common sequences for all the port accesses. */ -static uint32_t iosf_read_port(uint32_t cr, int reg) +uint32_t iosf_read_port(uint32_t cr, int reg) { cr |= IOSF_REG(reg) | IOSF_BYTE_EN; write_iosf_reg(MCRX_REG, IOSF_REG_UPPER(reg)); @@ -23,7 +23,7 @@ static uint32_t iosf_read_port(uint32_t cr, int reg) return read_iosf_reg(MDR_REG); } -static void iosf_write_port(uint32_t cr, int reg, uint32_t val) +void iosf_write_port(uint32_t cr, int reg, uint32_t val) { cr |= IOSF_REG(reg) | IOSF_BYTE_EN; write_iosf_reg(MDR_REG, val); @@ -68,6 +68,16 @@ void iosf_dunit_write(int reg, uint32_t val) iosf_write_port(IOSF_WRITE(SYSMEMC), reg, val); } +uint32_t iosf_cunit_read(int reg) +{ + return iosf_read_port(IOSF_READ(CUNIT), reg); +} + +void iosf_cunit_write(int reg, uint32_t val) +{ + iosf_write_port(IOSF_WRITE(CUNIT), reg, val); +} + uint32_t iosf_punit_read(int reg) { return iosf_read_port(IOSF_READ(PMC), reg); |