mirror of
https://github.com/openhwgroup/cvw
synced 2025-01-23 21:14:37 +00:00
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
#include "gpt.h"
|
|
#include "boot.h"
|
|
#include "uart.h"
|
|
#include <stddef.h>
|
|
|
|
int gpt_load_partitions() {
|
|
// size_t block_size = 512/8;
|
|
// long int lba1_buf[block_size];
|
|
|
|
BYTE lba1_buf[512];
|
|
|
|
int ret = 0;
|
|
//ret = disk_read(/* BYTE * buf, LBA_t sector, UINT count, BYTE card_type */);
|
|
print_time();
|
|
println("Getting GPT information.");
|
|
ret = disk_read(lba1_buf, 1, 1);
|
|
|
|
gpt_pth_t *lba1 = (gpt_pth_t *)lba1_buf;
|
|
|
|
print_time();
|
|
println("Getting partition entries.");
|
|
BYTE lba2_buf[512];
|
|
ret = disk_read(lba2_buf, (LBA_t)lba1->partition_entries_lba, 1);
|
|
|
|
// Load parition entries for the relevant boot partitions.
|
|
partition_entries_t *fdt = (partition_entries_t *)(lba2_buf);
|
|
partition_entries_t *opensbi = (partition_entries_t *)(lba2_buf + 128);
|
|
partition_entries_t *kernel = (partition_entries_t *)(lba2_buf + 256);
|
|
|
|
// Load device tree
|
|
print_time();
|
|
println_with_int("Loading device tree at: 0x", FDT_ADDRESS);
|
|
ret = disk_read((BYTE *)FDT_ADDRESS, fdt->first_lba, fdt->last_lba - fdt->first_lba + 1);
|
|
if (ret < 0) {
|
|
print_uart("Failed to load device tree!\r\n");
|
|
return -1;
|
|
}
|
|
|
|
// Load OpenSBI
|
|
print_time();
|
|
println_with_int("Loading OpenSBI at: 0x", OPENSBI_ADDRESS);
|
|
ret = disk_read((BYTE *)OPENSBI_ADDRESS, opensbi->first_lba, opensbi->last_lba - opensbi->first_lba + 1);
|
|
if (ret < 0) {
|
|
print_uart("Failed to load OpenSBI!\r\n");
|
|
return -1;
|
|
}
|
|
|
|
// Load Linux
|
|
print_time();
|
|
println_with_int("Loading Linux Kernel at: 0x", KERNEL_ADDRESS);
|
|
ret = disk_read((BYTE *)KERNEL_ADDRESS, kernel->first_lba,kernel->last_lba - kernel->first_lba + 1);
|
|
if (ret < 0) {
|
|
print_uart("Failed to load Linux!\r\n");
|
|
return -1;
|
|
}
|
|
|
|
print_time();
|
|
println("Done! Flashing LEDs and jumping to OpenSBI...");
|
|
|
|
return 0;
|
|
}
|