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-rw-r--r--src/coreboot-start.c208
1 files changed, 95 insertions, 113 deletions
diff --git a/src/coreboot-start.c b/src/coreboot-start.c
index cfcc668..da6da23 100644
--- a/src/coreboot-start.c
+++ b/src/coreboot-start.c
@@ -1,13 +1,13 @@
/* -------------------------------------------
- Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+ Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
------------------------------------------- */
+#include <lib/boot.h>
#include <lib/mp-bit.h>
#include <lib/partition-map.h>
#include <lib/pci-tree.h>
-#include <lib/boot.h>
/// BUGS: 0
@@ -34,135 +34,117 @@ uint64_t __cb_hart_counter = 0UL;
/// @brief Start executing the firmware.
/// @param
-void cb_start_exec(void)
-{
+void cb_start_exec(void) {
#ifndef __COMPILE_RISCV__
- static uint64_t __cb_hart_counter = 0UL;
+ static uint64_t __cb_hart_counter = 0UL;
#endif
- ++__cb_hart_counter;
+ ++__cb_hart_counter;
- uintptr_t hart = __cb_hart_counter;
+ uintptr_t hart = __cb_hart_counter;
- // let the hart 0 init our stuff.
- if (hart == 0)
- {
- cb_put_string("CB> Welcome to CoreBoot, (c) Amlal EL Mahrouss. Built the ");
- cb_put_string(__DATE__);
- cb_put_string("\r\r\n");
+ // let the hart 0 init our stuff.
+ if (hart == 0) {
+ cb_put_string("CB> Welcome to CoreBoot, (c) Amlal EL Mahrouss. Built the ");
+ cb_put_string(__DATE__);
+ cb_put_string("\r\r\n");
#ifdef __COMPILE_POWERPC__
- cb_put_string("CB> CPU: PowerPC 64-bit Based SoC.\r\r\n");
-#endif // __COMPILE_POWERPC__
+ cb_put_string("CB> CPU: PowerPC 64-bit Based SoC.\r\r\n");
+#endif // __COMPILE_POWERPC__
#ifdef __COMPILE_AMD64__
- cb_put_string("CB> CPU: x64 Based SoC.\r\r\n");
-#endif // __COMPILE_AMD64__
+ cb_put_string("CB> CPU: x64 Based SoC.\r\r\n");
+#endif // __COMPILE_AMD64__
#ifdef __COMPILE_ARM64__
- cb_put_string("CB> CPU: AArch64 Based SoC.\r\r\n");
-#endif // __COMPILE_ARM64__
+ cb_put_string("CB> CPU: AArch64 Based SoC.\r\r\n");
+#endif // __COMPILE_ARM64__
#ifdef __COMPILE_ARM32__
- cb_put_string("CB> CPU: AArch32 Based SoC.\r\r\n");
-#endif // __COMPILE_ARM64__
+ cb_put_string("CB> CPU: AArch32 Based SoC.\r\r\n");
+#endif // __COMPILE_ARM64__
#ifdef __COMPILE_RISCV__
- cb_put_string("CB> CPU: RV64 Based SoC.\r\r\n");
-#endif // __COMPILE_RISCV__
- }
+ cb_put_string("CB> CPU: RV64 Based SoC.\r\r\n");
+#endif // __COMPILE_RISCV__
+ }
- /// @brief Boots here if LX header matches what we except.
+ /// @brief Boots here if LX header matches what we except.
- volatile struct cb_boot_header* boot_hdr =
- (volatile struct cb_boot_header*)(CB_FLASH_BASE_ADDR);
+ volatile struct cb_boot_header* boot_hdr = (volatile struct cb_boot_header*) (CB_FLASH_BASE_ADDR);
- /**
- boot if:
- - ident matches.
- - version matches.
+ /**
+ boot if:
+ - ident matches.
+ - version matches.
*/
- if (boot_hdr->h_mag[0] == CB_BOOT_MAG_0 &&
- boot_hdr->h_mag[1] == CB_BOOT_MAG_1)
- {
- if (boot_hdr->h_revision != CB_BOOT_VER)
- {
- if (hart == 0)
- {
- cb_put_string("CB> Can't Boot the StageTwo, LX invalid signature. (CB0003)\r\n");
- }
- }
- else
- {
- if (hart == 0)
- {
- cb_pci_append_tree("@stage2-lx", (cb_pci_num_t)boot_hdr, sizeof(struct cb_boot_header));
-
- cb_put_string("CB> Executing StageTwo: ");
- cb_put_string((const char*)boot_hdr->h_name);
- cb_put_char('\r');
- cb_put_char('\n');
-
- // printf("CB> address: %x\n", boot_hdr->h_start_address);
- }
-
- if (boot_hdr->h_start_address != 0)
- {
- cb_boot_processor_ready = 1;
- cb_start_context(boot_hdr->h_start_address);
- }
-
- cb_put_string("CB> StageTwo has returned? (CB0002)\r\n");
- }
- }
- else
- {
- cb_put_string("CB> Trying EPM partition...\r\n");
-
- part_block_t* blk = cb_parse_partition_block_at((voidptr_t)CB_FLASH_BASE_ADDR, EPM_PART_BLK_SZ, 0);
-
- if (blk)
- {
- cb_pci_append_tree("@stage2-epm", (cb_pci_num_t)blk, sizeof(part_block_t) * blk->num_blocks);
-
- size_t indx = 0;
- size_t end_lba, start_lba, sector_sz;
-
- while (indx < blk->num_blocks)
- {
- if (cb_parse_partition_block_data_at(blk, EPM_PART_BLK_SZ * blk->num_blocks, indx, &end_lba, &start_lba, &sector_sz) == no)
- {
- ++indx;
- continue;
- }
-
- cb_boot_processor_ready = 1;
- cb_start_context((uintptr_t)(voidptr_t)blk + start_lba);
-
- if (hart == 1)
- {
- cb_put_string("CB> Can't boot to StageTwo. (CB0001)\r\n");
- }
- }
- }
-
- if (hart == 1)
- {
- cb_put_string("CB> Can't boot to StageTwo via EPM, no bootable partition blocks found. (CB0001)\r\n");
- }
- }
-
- /// end of TODO
-
- if (hart > 1)
- {
- while (yes)
- {
- if (__cb_hart_counter == 0)
- {
- cb_restart_machine();
- }
- }
- }
+ if (boot_hdr->h_mag[0] == CB_BOOT_MAG_0 && boot_hdr->h_mag[1] == CB_BOOT_MAG_1) {
+ if (boot_hdr->h_revision != CB_BOOT_VER) {
+ if (hart == 0) {
+ cb_put_string("CB> Can't Boot the StageTwo, LX invalid signature. (CB0003)\r\n");
+ }
+ } else {
+ if (hart == 0) {
+ cb_pci_append_tree("@stage2-lx", (cb_pci_num_t) boot_hdr, sizeof(struct cb_boot_header));
+
+ cb_put_string("CB> Executing StageTwo: ");
+ cb_put_string((const char*) boot_hdr->h_name);
+ cb_put_char('\r');
+ cb_put_char('\n');
+
+ // printf("CB> address: %x\n", boot_hdr->h_start_address);
+ }
+
+ if (boot_hdr->h_start_address != 0) {
+ cb_boot_processor_ready = 1;
+ cb_start_context(boot_hdr->h_start_address);
+ }
+
+ cb_put_string("CB> StageTwo has returned? (CB0002)\r\n");
+ }
+ } else {
+ cb_put_string("CB> Trying EPM partition...\r\n");
+
+ part_block_t* blk =
+ cb_parse_partition_block_at((voidptr_t) CB_FLASH_BASE_ADDR, EPM_PART_BLK_SZ, 0);
+
+ if (blk) {
+ cb_pci_append_tree("@stage2-epm", (cb_pci_num_t) blk, sizeof(part_block_t) * blk->num_blocks);
+
+ size_t indx = 0;
+ size_t end_lba, start_lba, sector_sz;
+
+ while (indx < blk->num_blocks) {
+ if (cb_parse_partition_block_data_at(blk, EPM_PART_BLK_SZ * blk->num_blocks, indx, &end_lba,
+ &start_lba, &sector_sz) == no) {
+ ++indx;
+ continue;
+ }
+
+ cb_boot_processor_ready = 1;
+ cb_start_context((uintptr_t) (voidptr_t) blk + start_lba);
+
+ if (hart == 1) {
+ cb_put_string("CB> Can't boot to StageTwo. (CB0001)\r\n");
+ }
+ }
+ }
+
+ if (hart == 1) {
+ cb_put_string(
+ "CB> Can't boot to StageTwo via EPM, no bootable partition blocks found. (CB0001)\r\n");
+ }
+ }
+
+ /// end of TODO
+
+ if (hart > 1) {
+ while (yes) {
+ if (__cb_hart_counter == 0) {
+ cb_restart_machine();
+ }
+ }
+ }
}
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