diff options
Diffstat (limited to 'src/soc/intel/baytrail/iosf.c')
| -rw-r--r-- | src/soc/intel/baytrail/iosf.c | 115 |
1 files changed, 41 insertions, 74 deletions
diff --git a/src/soc/intel/baytrail/iosf.c b/src/soc/intel/baytrail/iosf.c index 8016446338..a7f7a905bc 100644 --- a/src/soc/intel/baytrail/iosf.c +++ b/src/soc/intel/baytrail/iosf.c @@ -42,35 +42,42 @@ static inline uint32_t read_iosf_reg(int reg) } #endif -uint32_t iosf_bunit_read(int reg) +/* Common sequences for all the port accesses. */ +static uint32_t iosf_read_port(uint32_t cr, int reg) { - uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_BUNIT) | - IOSF_PORT(IOSF_PORT_BUNIT) | IOSF_REG(reg) | IOSF_BYTE_EN; - + cr |= 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_bunit_write(int reg, uint32_t val) +static void iosf_write_port(uint32_t cr, int reg, uint32_t val) { - uint32_t cr = IOSF_OPCODE(IOSF_OP_WRITE_BUNIT) | - IOSF_PORT(IOSF_PORT_BUNIT) | IOSF_REG(reg) | IOSF_BYTE_EN; - + cr |= 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); } +uint32_t iosf_bunit_read(int reg) +{ + uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_BUNIT) | + IOSF_PORT(IOSF_PORT_BUNIT); + return iosf_read_port(cr, reg); +} + +void iosf_bunit_write(int reg, uint32_t val) +{ + uint32_t cr = IOSF_OPCODE(IOSF_OP_WRITE_BUNIT) | + IOSF_PORT(IOSF_PORT_BUNIT); + iosf_write_port(cr, reg, val); +} + uint32_t iosf_dunit_read(int reg) { uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_SYSMEMC) | - IOSF_PORT(IOSF_PORT_SYSMEMC) | 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); + IOSF_PORT(IOSF_PORT_SYSMEMC); + return iosf_read_port(cr, reg); } uint32_t iosf_dunit_ch0_read(int reg) @@ -81,109 +88,69 @@ uint32_t iosf_dunit_ch0_read(int reg) uint32_t iosf_dunit_ch1_read(int reg) { uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_SYSMEMC) | - IOSF_PORT(IOSF_PORT_DUNIT_CH1) | 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); + IOSF_PORT(IOSF_PORT_DUNIT_CH1); + return iosf_read_port(cr, reg); } void iosf_dunit_write(int reg, uint32_t val) { uint32_t cr = IOSF_OPCODE(IOSF_OP_WRITE_SYSMEMC) | - IOSF_PORT(IOSF_PORT_SYSMEMC) | 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); + IOSF_PORT(IOSF_PORT_SYSMEMC); + iosf_write_port(cr, reg, val); } uint32_t iosf_punit_read(int reg) { uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_PMC) | - IOSF_PORT(IOSF_PORT_PMC) | 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); + IOSF_PORT(IOSF_PORT_PMC); + return iosf_read_port(cr, reg); } void iosf_punit_write(int reg, uint32_t val) { uint32_t cr = IOSF_OPCODE(IOSF_OP_WRITE_PMC) | - IOSF_PORT(IOSF_PORT_PMC) | 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); + IOSF_PORT(IOSF_PORT_PMC); + iosf_write_port(cr, reg, val); } uint32_t iosf_usbphy_read(int reg) { uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_USBPHY) | - IOSF_PORT(IOSF_PORT_USBPHY) | 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); + IOSF_PORT(IOSF_PORT_USBPHY); + return iosf_read_port(cr, reg); } void iosf_usbphy_write(int reg, uint32_t val) { uint32_t cr = IOSF_OPCODE(IOSF_OP_WRITE_USBPHY) | - IOSF_PORT(IOSF_PORT_USBPHY) | 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); + IOSF_PORT(IOSF_PORT_USBPHY); + return iosf_write_port(cr, reg, val); } uint32_t iosf_ushphy_read(int reg) { uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_USHPHY) | - IOSF_PORT(IOSF_PORT_USHPHY) | 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); + IOSF_PORT(IOSF_PORT_USHPHY); + return iosf_read_port(cr, reg); } void iosf_ushphy_write(int reg, uint32_t val) { uint32_t cr = IOSF_OPCODE(IOSF_OP_WRITE_USHPHY) | - IOSF_PORT(IOSF_PORT_USHPHY) | 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); + IOSF_PORT(IOSF_PORT_USHPHY); + return iosf_write_port(cr, reg, val); } 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); + IOSF_PORT(IOSF_PORT_LPSS); + return iosf_read_port(cr, 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); + IOSF_PORT(IOSF_PORT_LPSS); + return iosf_write_port(cr, reg, val); } |