diff options
Diffstat (limited to 'it87spi.c')
| -rw-r--r-- | it87spi.c | 33 |
1 files changed, 10 insertions, 23 deletions
@@ -34,23 +34,10 @@ uint16_t it8716f_flashport = 0; /* use fast 33MHz SPI (<>0) or slow 16MHz (0) */ int fast_spi = 1; -/* Generic Super I/O helper functions */ -uint8_t regval(uint16_t port, uint8_t reg) -{ - OUTB(reg, port); - return INB(port + 1); -} - -void regwrite(uint16_t port, uint8_t reg, uint8_t val) -{ - OUTB(reg, port); - OUTB(val, port + 1); -} - /* Helper functions for most recent ITE IT87xx Super I/O chips */ #define CHIP_ID_BYTE1_REG 0x20 #define CHIP_ID_BYTE2_REG 0x21 -static void enter_conf_mode_ite(uint16_t port) +void enter_conf_mode_ite(uint16_t port) { OUTB(0x87, port); OUTB(0x01, port); @@ -61,9 +48,9 @@ static void enter_conf_mode_ite(uint16_t port) OUTB(0xaa, port); } -static void exit_conf_mode_ite(uint16_t port) +void exit_conf_mode_ite(uint16_t port) { - regwrite(port, 0x02, 0x02); + sio_write(port, 0x02, 0x02); } static uint16_t find_ite_spi_flash_port(uint16_t port) @@ -73,13 +60,13 @@ static uint16_t find_ite_spi_flash_port(uint16_t port) enter_conf_mode_ite(port); - id = regval(port, CHIP_ID_BYTE1_REG) << 8; - id |= regval(port, CHIP_ID_BYTE2_REG); + id = sio_read(port, CHIP_ID_BYTE1_REG) << 8; + id |= sio_read(port, CHIP_ID_BYTE2_REG); /* TODO: Handle more IT87xx if they support flash translation */ if (0x8716 == id || 0x8718 == id) { /* NOLDN, reg 0x24, mask out lowest bit (suspend) */ - tmp = regval(port, 0x24) & 0xFE; + tmp = sio_read(port, 0x24) & 0xFE; printf("Serial flash segment 0x%08x-0x%08x %sabled\n", 0xFFFE0000, 0xFFFFFFFF, (tmp & 1 << 1) ? "en" : "dis"); printf("Serial flash segment 0x%08x-0x%08x %sabled\n", @@ -94,13 +81,13 @@ static uint16_t find_ite_spi_flash_port(uint16_t port) if ((tmp & 0xe) && (!(tmp & 1 << 4))) { printf("Enabling LPC write to serial flash\n"); tmp |= 1 << 4; - regwrite(port, 0x24, tmp); + sio_write(port, 0x24, tmp); } printf("serial flash pin %i\n", (tmp & 1 << 5) ? 87 : 29); /* LDN 0x7, reg 0x64/0x65 */ - regwrite(port, 0x07, 0x7); - flashport = regval(port, 0x64) << 8; - flashport |= regval(port, 0x65); + sio_write(port, 0x07, 0x7); + flashport = sio_read(port, 0x64) << 8; + flashport |= sio_read(port, 0x65); } exit_conf_mode_ite(port); return flashport; |