diff options
Diffstat (limited to 'src/soc/intel/baytrail/iosf.c')
| -rw-r--r-- | src/soc/intel/baytrail/iosf.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/soc/intel/baytrail/iosf.c b/src/soc/intel/baytrail/iosf.c index 7d420cc627..8016446338 100644 --- a/src/soc/intel/baytrail/iosf.c +++ b/src/soc/intel/baytrail/iosf.c @@ -165,3 +165,25 @@ void iosf_ushphy_write(int reg, uint32_t val) write_iosf_reg(MCRX_REG, IOSF_REG_UPPER(reg)); write_iosf_reg(MCR_REG, cr); } + +uint32_t iosf_lpss_read(int reg) +{ + uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_LPSS) | + IOSF_PORT(IOSF_PORT_LPSS) | IOSF_REG(reg) | + IOSF_BYTE_EN; + + write_iosf_reg(MCRX_REG, IOSF_REG_UPPER(reg)); + write_iosf_reg(MCR_REG, cr); + return read_iosf_reg(MDR_REG); +} + +void iosf_lpss_write(int reg, uint32_t val) +{ + uint32_t cr = IOSF_OPCODE(IOSF_OP_WRITE_LPSS) | + IOSF_PORT(IOSF_PORT_LPSS) | IOSF_REG(reg) | + IOSF_BYTE_EN; + + write_iosf_reg(MDR_REG, val); + write_iosf_reg(MCRX_REG, IOSF_REG_UPPER(reg)); + write_iosf_reg(MCR_REG, cr); +} |