coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
early_init.c
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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#include <
bootblock_common.h
>
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#include <
northbridge/intel/x4x/x4x.h
>
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#include <
southbridge/intel/i82801gx/i82801gx.h
>
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#include <
superio/ite/common/ite.h
>
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#include <
superio/ite/it8720f/it8720f.h
>
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#define SERIAL_DEV PNP_DEV(0x2e, IT8720F_SP1)
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#define GPIO_DEV PNP_DEV(0x2e, IT8720F_GPIO)
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void
bootblock_mainboard_early_init
(
void
)
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{
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/* Set up GPIOs on Super I/O. */
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ite_reg_write
(
GPIO_DEV
, 0x25, 0x01);
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ite_reg_write
(
GPIO_DEV
, 0x26, 0x04);
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ite_reg_write
(
GPIO_DEV
, 0x27, 0x00);
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ite_reg_write
(
GPIO_DEV
, 0x28, 0x40);
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ite_reg_write
(
GPIO_DEV
, 0x29, 0x01);
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ite_reg_write
(
GPIO_DEV
, 0x73, 0x00);
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ite_reg_write
(
GPIO_DEV
, 0x74, 0x00);
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ite_reg_write
(
GPIO_DEV
, 0xb1, 0x04);
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ite_reg_write
(
GPIO_DEV
, 0xb8, 0x20);
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ite_reg_write
(
GPIO_DEV
, 0xbb, 0x01);
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ite_reg_write
(
GPIO_DEV
, 0xc0, 0x00);
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ite_reg_write
(
GPIO_DEV
, 0xc3, 0x01);
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ite_reg_write
(
GPIO_DEV
, 0xcb, 0x01);
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ite_reg_write
(
GPIO_DEV
, 0xf5, 0x28);
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ite_reg_write
(
GPIO_DEV
, 0xf6, 0x12);
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ite_enable_3vsbsw
(
GPIO_DEV
);
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/* Set up IRQ routing. */
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RCBA16
(
D31IR
) = 0x0132;
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RCBA16
(
D30IR
) = 0x3241;
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RCBA16
(
D29IR
) = 0x0237;
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RCBA32
(
FD
) |=
FD_INTLAN
;
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ite_enable_serial
(
SERIAL_DEV
, CONFIG_TTYS0_BASE);
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}
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void
mb_get_spd_map
(
u8
spd_map[4])
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{
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spd_map[0] = 0x50;
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if
(
CONFIG
(BOARD_FOXCONN_G41M))
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spd_map[2] = 0x52;
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}
bootblock_common.h
CONFIG
@ CONFIG
Definition:
dsi_common.h:201
i82801gx.h
FD_INTLAN
#define FD_INTLAN
Definition:
i82801gx.h:248
it8720f.h
ite_enable_serial
void ite_enable_serial(pnp_devfn_t dev, u16 iobase)
Definition:
early_serial.c:61
ite_reg_write
void ite_reg_write(pnp_devfn_t dev, u8 reg, u8 value)
Definition:
early_serial.c:41
ite_enable_3vsbsw
void ite_enable_3vsbsw(pnp_devfn_t dev)
Definition:
early_serial.c:85
ite.h
bootblock_mainboard_early_init
void bootblock_mainboard_early_init(void)
Definition:
early_init.c:11
mb_get_spd_map
void mb_get_spd_map(u8 spd_map[4])
Definition:
early_init.c:27
GPIO_DEV
#define GPIO_DEV
Definition:
early_init.c:10
SERIAL_DEV
#define SERIAL_DEV
Definition:
early_init.c:9
D31IR
#define D31IR
Definition:
rcba.h:87
D30IR
#define D30IR
Definition:
rcba.h:88
D29IR
#define D29IR
Definition:
rcba.h:89
FD
#define FD
Definition:
rcba.h:125
RCBA16
#define RCBA16(x)
Definition:
rcba.h:13
RCBA32
#define RCBA32(x)
Definition:
rcba.h:14
u8
uint8_t u8
Definition:
stdint.h:45
x4x.h
src
mainboard
foxconn
g41s-k
early_init.c
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