coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
early_init.c
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1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 
3 #include <bootblock_common.h>
8 
9 #define SERIAL_DEV PNP_DEV(0x2e, W83667HG_A_SP1)
10 
12 {
13  /* TODO? */
14  RCBA32(RCBA_CG) = 0xbf7f001f;
15  RCBA32(0x3430) = 0x00000002;
16  RCBA32(0x3f00) = 0x00000038;
17 
18  winbond_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
19 }
20 
21 void mb_get_spd_map(u8 spd_map[4])
22 {
23  spd_map[0] = 0x50;
24  spd_map[1] = 0x51;
25  spd_map[2] = 0x52;
26  spd_map[3] = 0x53;
27 }
#define RCBA_CG
Definition: i82801ix.h:121
void bootblock_mainboard_early_init(void)
Definition: early_init.c:11
void mb_get_spd_map(u8 spd_map[4])
Definition: early_init.c:27
#define SERIAL_DEV
Definition: early_init.c:9
#define RCBA32(x)
Definition: rcba.h:14
uint8_t u8
Definition: stdint.h:45
void winbond_enable_serial(pnp_devfn_t dev, u16 iobase)
Definition: early_init.c:47