diff options
Diffstat (limited to 'board_enable.c')
| -rw-r--r-- | board_enable.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/board_enable.c b/board_enable.c index 5a3522182..b1e2c6517 100644 --- a/board_enable.c +++ b/board_enable.c @@ -498,6 +498,48 @@ int it8705f_write_enable(uint8_t port) return ret; } +/* + * The ITE IT8707F is a custom chip made by ITE exclusively for ASUS. + * It uses the Winbond command sequence to enter extended configuration + * mode and the ITE sequence to exit. + * + * Registers seems similar to the ones on ITE IT8710F. + */ +static int it8707f_write_enable(uint8_t port) +{ + uint8_t tmp; + + w836xx_ext_enter(port); + + /* Set bit 3 (GLB_REG_WE) of reg 0x23: Makes reg 0x24-0x2A rw */ + tmp = sio_read(port, 0x23); + tmp |= (1 << 3); + sio_write(port, 0x23, tmp); + + /* Set bit 2 (FLASH_WE) and bit 3 (FLASH_IF_EN) of reg 0x24 */ + tmp = sio_read(port, 0x24); + tmp |= (1 << 2) | (1 << 3); + sio_write(port, 0x24, tmp); + + /* Clear bit 3 (GLB_REG_WE) of reg 0x23: Makes reg 0x24-0x2A ro */ + tmp = sio_read(port, 0x23); + tmp &= ~(1 << 3); + sio_write(port, 0x23, tmp); + + exit_conf_mode_ite(port); + + return 0; +} + +/* + * Suited for: + * - ASUS P4SC-E: SiS 651 + 962 + ITE IT8707F + */ +static int it8707f_write_enable_2e(void) +{ + return it8707f_write_enable(0x2e); +} + static int pc87360_gpio_set(uint8_t gpio, int raise) { static const int bankbase[] = {0, 4, 8, 10, 12}; @@ -1818,6 +1860,7 @@ const struct board_pciid_enable board_pciid_enables[] = { {0x8086, 0x24D3, 0x1043, 0x80A6, 0x8086, 0x2578, 0x1043, 0x80F6, NULL, NULL, NULL, "ASUS", "P4C800-E Deluxe", 0, OK, intel_ich_gpio21_raise}, {0x8086, 0x2570, 0x1043, 0x80F2, 0x8086, 0x24D5, 0x1043, 0x80F3, NULL, NULL, NULL, "ASUS", "P4P800", 0, NT, intel_ich_gpio21_raise}, {0x8086, 0x2570, 0x1043, 0x80F2, 0x105A, 0x3373, 0x1043, 0x80F5, NULL, NULL, NULL, "ASUS", "P4P800-E Deluxe", 0, OK, intel_ich_gpio21_raise}, + {0x1039, 0x0651, 0x1043, 0x8081, 0x1039, 0x0962, 0, 0, NULL, NULL, NULL, "ASUS", "P4SC-E", 0, OK, it8707f_write_enable_2e}, {0x8086, 0x2570, 0x1043, 0x80A5, 0x105A, 0x24D3, 0x1043, 0x80A6, NULL, NULL, NULL, "ASUS", "P4SD-LA", 0, NT, intel_ich_gpio32_raise}, {0x1039, 0x0661, 0x1043, 0x8113, 0x1039, 0x5513, 0x1043, 0x8087, NULL, NULL, NULL, "ASUS", "P4S800-MX", 512, OK, w836xx_memw_enable_2e}, {0x10B9, 0x1541, 0, 0, 0x10B9, 0x1533, 0, 0, "^P5A$", "asus", "p5a", "ASUS", "P5A", 0, OK, board_asus_p5a}, |