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wolfBoot/hal/renesas-ra.c

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/* renesas-ra.c
*
* Stubs for custom HAL implementation. Defines the
* functions used by wolfboot for a specific target.
*
* Copyright (C) 2023 wolfSSL Inc.
*
* This file is part of wolfBoot.
*
* wolfBoot is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* wolfBoot is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include "user_settings.h"
#include <target.h>
#include "hal.h"
#include "r_flash_hp.h"
#if defined(WOLFSSL_RENESAS_SCEPROTECT_CRYPTONLY) && \
!defined(WOLFBOOT_RENESAS_APP)
# include "wolfssl/wolfcrypt/wc_port.h"
# include "wolfssl/wolfcrypt/port/Renesas/renesas-sce-crypt.h"
# include "wolfssl/wolfcrypt/port/Renesas/renesas_sync.h"
User_SCEPKCbInfo pkInfo;
sce_rsa2048_public_wrapped_key_t wrapped_rsapub2048;
#endif
/* #define DEBUG_FLASH_WRITE_VERIFY */
static inline void hal_panic(void)
{
while(1)
;
}
extern flash_ctrl_t g_flash0_ctrl;
extern flash_cfg_t g_flash0_cfg;
void hal_init(void)
{
fsp_err_t err;
#if defined(WOLFBOOT_RENESAS_SCEPROTECT) && !defined(WOLFBOOT_RENESAS_APP)
/* retrieve installed pubkey from flash */
uint32_t *pubkey = keystore_get_buffer(0);
#endif
err = R_FLASH_HP_Close(&g_flash0_ctrl);
err = R_FLASH_HP_Open(&g_flash0_ctrl, &g_flash0_cfg);
if(err != FSP_ERR_ALREADY_OPEN && err != FSP_SUCCESS){
printf("ERROR: %d\n", err);
hal_panic();
}
/* Setup Default Block 0 as Startup Setup Block */
err = R_FLASH_HP_StartUpAreaSelect(&g_flash0_ctrl, FLASH_STARTUP_AREA_BLOCK0, true);
if(err != FSP_SUCCESS){
printf("ERROR: %d\n", err);
hal_panic();
}
#if defined(WOLFBOOT_RENESAS_SCEPROTECT) && !defined(WOLFBOOT_RENESAS_APP)
err = wolfCrypt_Init();
if (err != 0) {
printf("ERROR: wolfCrypt_Init %d\n", err);
hal_panic();
}
XMEMSET(&pkInfo, 0, sizeof(pkInfo));
pkInfo.sce_wrapped_key_rsapub2048 =
(sce_rsa2048_public_wrapped_key_t*)&wrapped_rsapub2048;
XMEMCPY(&wrapped_rsapub2048.value, (uint32_t*)pubkey,
sizeof(wrapped_rsapub2048.value));
wrapped_rsapub2048.type =SCE_KEY_INDEX_TYPE_RSA2048_PUBLIC;
pkInfo.keyflgs_crypt.bits.rsapub2048_installedkey_set = 1;
pkInfo.keyflgs_crypt.bits.message_type = 1;
err = wc_CryptoCb_CryptInitRenesasCmn(NULL, &pkInfo);
if (err < 0) {
printf("ERROR: wc_CryptoCb_CryptInitRenesasCmn %d\n", err);
hal_panic();
}
#endif
}
void hal_prepare_boot(void)
{
}
#define MINIMUM_BLOCK (128)
#define ALIGN_FLASH(a) (((a) / MINIMUM_BLOCK) * MINIMUM_BLOCK)
static uint8_t save[MINIMUM_BLOCK*sizeof(uint32_t)];
#ifdef DEBUG_FLASH_WRITE_VERIFY
static uint8_t readbuf[MINIMUM_BLOCK*sizeof(uint32_t)];
#endif
/* */
static int blockWrite(const uint8_t *data, uint32_t addr, uint32_t len)
{
for(; len; len-=MINIMUM_BLOCK, data+=MINIMUM_BLOCK, addr+=MINIMUM_BLOCK) {
/* for the case "data" ls a flash address */
memcpy(save, data, MINIMUM_BLOCK);
if(R_FLASH_HP_Write(&g_flash0_ctrl, (uint32_t)save, addr, MINIMUM_BLOCK)
!= FSP_SUCCESS)
return -1;
}
return 0;
}
#define IS_FLASH(addr) (addr) >= 0xffc00000 ? 1 : 0
int hal_flash_write(uint32_t addr, const uint8_t *data, int int_len)
{
fsp_err_t err;
uint32_t len = (uint32_t)int_len;
uint32_t save_len = 0;
uint8_t address_tmp = (uint8_t)(addr - ALIGN_FLASH(addr));
if(addr != ALIGN_FLASH(addr)) {
memset(save, 0, sizeof(save));
save_len = (addr - ALIGN_FLASH(addr)) < len ?
(addr - ALIGN_FLASH(addr)) : len;
memcpy(save, (const void *)ALIGN_FLASH(addr),
MINIMUM_BLOCK * sizeof(uint32_t));
memcpy(save + (address_tmp), data, save_len);
addr = ALIGN_FLASH(addr);
if((err=R_FLASH_HP_Erase(&g_flash0_ctrl, addr, 1)) != FSP_SUCCESS)
return -1;
if((err=R_FLASH_HP_Write(&g_flash0_ctrl, (uint32_t)save, addr,
MINIMUM_BLOCK * sizeof(uint32_t))) != FSP_SUCCESS)
return -1;
#ifdef DEBUG_FLASH_WRITE_VERIFY
memcpy(readbuf, (const void*)addr, MINIMUM_BLOCK * sizeof(uint32_t));
if(memcmp(readbuf, save, MINIMUM_BLOCK * sizeof(uint32_t)) != 0) {
return -1;
}
#endif
len -= save_len;
data += save_len;
addr += MINIMUM_BLOCK;
}
if(len > 0) {
if(blockWrite(data, addr, ALIGN_FLASH(len)) < 0)
goto error;
addr += ALIGN_FLASH(len);
data += ALIGN_FLASH(len);
len -= ALIGN_FLASH(len);
}
if(len > 0) {
memcpy(save, (const void *)addr, MINIMUM_BLOCK);
memcpy(save, data, len);
if(R_FLASH_HP_Erase(&g_flash0_ctrl, addr, 1) != FSP_SUCCESS)
return -1;
if(R_FLASH_HP_Write(&g_flash0_ctrl,
(uint32_t)save, addr, MINIMUM_BLOCK) != FSP_SUCCESS)
goto error;
}
return 0;
error:
return -1;
}
int hal_flash_erase(uint32_t address, int int_len)
{
uint32_t len = (uint32_t)int_len;
#ifdef WOLFBOOT_DUALBANK
uint32_t block_size = (address <= 0x80000 && address >= 0x10000)
|| address >= 0x210000 ? (32*1024) : (8*1024);
#else /* Lenier mode */
uint32_t block_size = address >= 0x10000 ? (32*1024) : (8*1024);
#endif
if(len % block_size != 0)
return -1;
for( ; len; address+=block_size, len-=block_size) {
if(R_FLASH_HP_Erase(&g_flash0_ctrl, address, 1)
!= FSP_SUCCESS)
return -1;
}
return 0;
}
#ifdef WOLFBOOT_DUALBANK
#define FLASH_START_ADDR 0x0
#define FLASH_END_ADDR 0x7ffff
#define FLASH1_START_ADDR 0x200000
#define FLASH1_END_ADDR 0x27ffff
#else
#define FLASH_START_ADDR 0x0
#define FLASH_END_ADDR 0xfffff
#endif
void hal_flash_unlock(void)
{
if(R_FLASH_HP_AccessWindowClear(&g_flash0_ctrl) != FSP_SUCCESS)
hal_panic();
return;
}
void hal_flash_lock(void)
{
if(R_FLASH_HP_AccessWindowSet(&g_flash0_ctrl,
FLASH_START_ADDR, FLASH_END_ADDR)
!= FSP_SUCCESS)
hal_panic();
#ifdef WOLFBOOT_DUALBANK
if(R_FLASH_HP_AccessWindowSet(&g_flash0_ctrl,
FLASH1_START_ADDR, FLASH1_END_ADDR)
!= FSP_SUCCESS)
hal_panic();
#endif
return;
}
#if WOLFBOOT_DUALBANK
void RAMFUNCTION hal_flash_dualbank_swap(void)
{
flash_cmd_t cmd = FLASH_CMD_SWAPFLAG_TOGGLE;
hal_flash_unlock();
if(R_FLASH_HP_Control(cmd, NULL) != FSP_SUCCESS)
hal_panic();
hal_flash_lock();
}
void* hal_get_primary_address(void)
{
return (void*)WOLFBOOT_PARTITION_BOOT_ADDRESS;
}
void* hal_get_update_address(void)
{
return (void*)WOLFBOOT_PARTITION_UPDATE_ADDRESS;
}
#endif
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