Martin Roth | 4b34193 | 2020-10-06 15:29:28 -0600 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
| 3 | #include <amdblocks/reset.h> |
Martin Roth | 0f3ef70 | 2020-10-06 18:11:12 -0600 | [diff] [blame] | 4 | #include <bl_uapp/bl_syscall_public.h> |
Martin Roth | 4b34193 | 2020-10-06 15:29:28 -0600 | [diff] [blame] | 5 | #include <console/console.h> |
| 6 | #include <pc80/mc146818rtc.h> |
| 7 | #include <security/vboot/vbnv.h> |
| 8 | #include <security/vboot/symbols.h> |
| 9 | #include <soc/psp_transfer.h> |
| 10 | #include <2struct.h> |
| 11 | |
| 12 | void verify_psp_transfer_buf(void) |
| 13 | { |
| 14 | if (*(uint32_t *)_vboot2_work == VB2_SHARED_DATA_MAGIC) { |
| 15 | cmos_write(0x00, CMOS_RECOVERY_BYTE); |
| 16 | return; |
| 17 | } |
| 18 | |
| 19 | /* |
| 20 | * If CMOS is valid and the system has already been rebooted once, but |
| 21 | * still returns here, instead of rebooting to verstage again, assume |
| 22 | * that the system is in a reboot loop and halt. |
| 23 | */ |
| 24 | if ((!vbnv_cmos_failed()) && cmos_read(CMOS_RECOVERY_BYTE) == |
| 25 | CMOS_RECOVERY_MAGIC_VAL) |
| 26 | die("Error: Reboot into recovery was unsuccessful. Halting."); |
| 27 | |
| 28 | printk(BIOS_ERR, "ERROR: VBOOT workbuf not valid.\n"); |
| 29 | printk(BIOS_DEBUG, "Signature: %#08x\n", *(uint32_t *)_vboot2_work); |
| 30 | cmos_init(0); |
| 31 | cmos_write(CMOS_RECOVERY_MAGIC_VAL, CMOS_RECOVERY_BYTE); |
| 32 | warm_reset(); |
| 33 | } |
Martin Roth | 0f3ef70 | 2020-10-06 18:11:12 -0600 | [diff] [blame] | 34 | |
| 35 | void show_psp_transfer_info(void) |
| 36 | { |
| 37 | struct transfer_info_struct *info = (struct transfer_info_struct *) |
| 38 | (void *)(uintptr_t)_transfer_buffer; |
| 39 | |
| 40 | if (info->magic_val == TRANSFER_MAGIC_VAL) { |
| 41 | if ((info->psp_info & PSP_INFO_VALID) == 0) { |
| 42 | printk(BIOS_INFO, "No PSP info found in transfer buffer.\n"); |
| 43 | return; |
| 44 | } |
| 45 | |
| 46 | printk(BIOS_INFO, "PSP boot mode: %s\n", |
| 47 | info->psp_info & PSP_INFO_PRODUCTION_MODE ? |
| 48 | "Production" : "Development"); |
| 49 | printk(BIOS_INFO, "Silicon level: %s\n", |
| 50 | info->psp_info & PSP_INFO_PRODUCTION_SILICON ? |
| 51 | "Production" : "Pre-Production"); |
| 52 | } |
| 53 | } |