diff options
Diffstat (limited to 'src/mainboard/asus/am1i-a/bootblock.c')
| -rw-r--r-- | src/mainboard/asus/am1i-a/bootblock.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/src/mainboard/asus/am1i-a/bootblock.c b/src/mainboard/asus/am1i-a/bootblock.c new file mode 100644 index 0000000000..d4017cf282 --- /dev/null +++ b/src/mainboard/asus/am1i-a/bootblock.c @@ -0,0 +1,144 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <amdblocks/acpimmio.h> +#include <bootblock_common.h> +#include <device/pnp_ops.h> +#include <superio/ite/common/ite.h> +#include <superio/ite/it8623e/it8623e.h> + +#if CONFIG_UART_FOR_CONSOLE == 0 +#define SERIAL_DEV PNP_DEV(0x2e, IT8623E_SP1) +#elif CONFIG_UART_FOR_CONSOLE == 1 +#define SERIAL_DEV PNP_DEV(0x2e, IT8623E_SP2) +#else +#error "Invalid value for CONFIG_UART_FOR_CONSOLE" +#endif + +#define GPIO_DEV PNP_DEV(0x2e, IT8623E_GPIO) +#define CLKIN_DEV PNP_DEV(0x2e, IT8623E_GPIO) +#define ENVC_DEV PNP_DEV(0x2e, IT8623E_EC) + +/* Sets up EC configuration as per vendor defaults */ +static void ite_evc_conf(pnp_devfn_t dev) +{ + pnp_set_enable(dev, 0); + ite_reg_write(dev, 0x70, 0x00); + ite_reg_write(dev, 0xf0, 0x00); + ite_reg_write(dev, 0xf1, 0x00); + ite_reg_write(dev, 0xf2, 0x06); + ite_reg_write(dev, 0xf3, 0x00); + ite_reg_write(dev, 0xf4, 0x00); + ite_reg_write(dev, 0xf5, 0x36); + ite_reg_write(dev, 0xf6, 0x03); + ite_reg_write(dev, 0xf9, 0x48); + ite_reg_write(dev, 0xfa, 0x00); + ite_reg_write(dev, 0xfb, 0x10); + pnp_set_enable(dev, 1); +} + +/* + * Sets up GPIO configuration as per vendor defaults + * SIO defaults are unknown therefore all GPIO pins are configured +*/ +static void ite_gpio_conf(pnp_devfn_t dev) +{ + ite_reg_write(dev, 0x23, 0x08); + ite_reg_write(dev, 0x25, 0x10); + ite_reg_write(dev, 0x26, 0x00); + ite_reg_write(dev, 0x27, 0x80); + ite_reg_write(dev, 0x28, 0x45); + ite_reg_write(dev, 0x29, 0x00); + ite_reg_write(dev, 0x2a, 0x00); + ite_reg_write(dev, 0x2b, 0x48); + ite_reg_write(dev, 0x2c, 0x10); + ite_reg_write(dev, 0x2d, 0x80); + ite_reg_write(dev, 0x71, 0x00); + ite_reg_write(dev, 0x72, 0x00); + ite_reg_write(dev, 0x73, 0x38); + ite_reg_write(dev, 0x74, 0x00); + ite_reg_write(dev, 0xb0, 0x00); + ite_reg_write(dev, 0xb1, 0x00); + ite_reg_write(dev, 0xb2, 0x00); + ite_reg_write(dev, 0xb3, 0x00); + ite_reg_write(dev, 0xb4, 0x00); + ite_reg_write(dev, 0xb8, 0x00); + ite_reg_write(dev, 0xb9, 0x00); + ite_reg_write(dev, 0xba, 0x00); + ite_reg_write(dev, 0xbb, 0x00); + ite_reg_write(dev, 0xbc, 0x00); + ite_reg_write(dev, 0xbd, 0x00); + ite_reg_write(dev, 0xc0, 0x01); + ite_reg_write(dev, 0xc1, 0x00); + ite_reg_write(dev, 0xc2, 0x00); + ite_reg_write(dev, 0xc3, 0x00); + ite_reg_write(dev, 0xc4, 0x00); + ite_reg_write(dev, 0xc8, 0x01); + ite_reg_write(dev, 0xc9, 0x00); + ite_reg_write(dev, 0xca, 0x00); + ite_reg_write(dev, 0xcb, 0x00); + ite_reg_write(dev, 0xcc, 0x00); + ite_reg_write(dev, 0xcd, 0x20); + ite_reg_write(dev, 0xce, 0x00); + ite_reg_write(dev, 0xcf, 0x00); + ite_reg_write(dev, 0xe0, 0x00); + ite_reg_write(dev, 0xe1, 0x00); + ite_reg_write(dev, 0xe2, 0x00); + ite_reg_write(dev, 0xe3, 0x00); + ite_reg_write(dev, 0xe4, 0x00); + ite_reg_write(dev, 0xe9, 0x21); + ite_reg_write(dev, 0xf0, 0x00); + ite_reg_write(dev, 0xf1, 0x00); + ite_reg_write(dev, 0xf2, 0x00); + ite_reg_write(dev, 0xf3, 0x00); + ite_reg_write(dev, 0xf4, 0x00); + ite_reg_write(dev, 0xf5, 0x00); + ite_reg_write(dev, 0xf6, 0x00); + ite_reg_write(dev, 0xf7, 0x00); + ite_reg_write(dev, 0xf8, 0x00); + ite_reg_write(dev, 0xf9, 0x00); + ite_reg_write(dev, 0xfa, 0x00); + ite_reg_write(dev, 0xfb, 0x00); +} + +void bootblock_mainboard_early_init(void) +{ + volatile u32 i, val, *addr32; + + /* Disable PCI-PCI bridge and release GPIO32/33 for other uses. */ + pm_write8(0xea, 0x1); + + /* Configure ClkDrvStr1 settings */ + addr32 = (u32 *)0xfed80e24; + *addr32 = 0x030800aa; + + /* Configure MiscClkCntl1 settings */ + addr32 = (u32 *)0xfed80e40; + *addr32 = 0x000c4050; + + /* Configure SIO as made under vendor BIOS */ + ite_gpio_conf(GPIO_DEV); + ite_evc_conf(ENVC_DEV); + + /* Enable serial output on it8623e */ + ite_conf_clkin(CLKIN_DEV, ITE_UART_CLK_PREDIVIDE_48); + ite_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); + ite_kill_watchdog(GPIO_DEV); + + /* + * On Larne, after LpcClkDrvSth is set, it needs some time to be stable, + * because of the buffer ICS551M + */ + for (i = 0; i < 200000; i++) + val = inb(0xcd6); +} |