mirror of
https://codeberg.org/libreboot/lbmk.git
synced 2026-07-13 23:09:40 +02:00
Nicholas Chin
724cb39f86
This updates lbmk's copy of e6400-flash-unlock to commit c5567fece479 (README.md: Update with info about broader device support) in my upstream repo. Changes: - Theoretical support for any Dell system that implements that flash descriptor override command. This is done by reading base address registers at runtime instead of hard coding them for specific devices. Tested on the Latitude E6400 and Latitude E6430. - Support for OpenBSD. It compiles, runs, and behaves as expected, though I have not actually tested internally flashing with flashrom yet. It should work though, as the program checks if the descriptor override is set and the BIOS Write Enable is able to be set to 1, which is all that is needed to internal flash. - Integrated changes made in the lbmk copy - Moved operating system accessor implementations to their own file It should be fully functional, though minor formatting and cleanup changes are still planned. Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>
18 lines
547 B
C
18 lines
547 B
C
/* SPDX-License-Identifier: MIT */
|
|
/* SPDX-FileCopyrightText: 2023 Nicholas Chin */
|
|
|
|
#include <stdint.h>
|
|
|
|
#define PCI_CFG_ADDR 0xcf8
|
|
#define PCI_CFG_DATA 0xcfc
|
|
#define PCI_DEV(bus, dev, func) (1u << 31 | bus << 16 | dev << 11 | func << 8)
|
|
|
|
uint32_t pci_read_32(uint32_t dev, uint8_t reg);
|
|
void pci_write_32(uint32_t dev, uint8_t reg, uint32_t value);
|
|
|
|
int sys_iopl(int level);
|
|
void sys_outb(unsigned int port, uint8_t data);
|
|
void sys_outl(unsigned int port, uint32_t data);
|
|
uint8_t sys_inb(unsigned int port);
|
|
uint32_t sys_inl(unsigned int port);
|