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[Renesas RX72N CCRX] Move flash functions to RAM for flash operation #689

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[Renesas RX72N CCRX] Move flash functions to RAM for flash operation #689

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a685935
Move functions to RAM for flash operation
miyazakh Feb 19, 2026
43c2cce
Remove standard library as much as possible
miyazakh Feb 20, 2026
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81 changes: 46 additions & 35 deletions IDE/Renesas/e2studio/RX72N/app_RenesasRX01/.cproject
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5 changes: 5 additions & 0 deletions IDE/Renesas/e2studio/RX72N/app_RenesasRX01/.project
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Expand Up @@ -44,5 +44,10 @@
<type>1</type>
<locationURI>PARENT-5-PROJECT_LOC/hal/renesas-rx.c</locationURI>
</link>
<link>
<name>src/string.c</name>
<type>1</type>
<locationURI>PARENT-5-PROJECT_LOC/src/string.c</locationURI>
</link>
</linkedResources>
</projectDescription>
472 changes: 236 additions & 236 deletions IDE/Renesas/e2studio/RX72N/app_RenesasRX01/app_RenesasRX01.scfg
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36 changes: 32 additions & 4 deletions IDE/Renesas/e2studio/RX72N/app_RenesasRX01/src/app_RenesasRX01.c
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Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,8 @@
#include <string.h>
#include "hal.h"
#include "wolfboot/wolfboot.h"

#include "image.h"
#include "r_smc_entry.h"
static const char* state2str(uint8_t s)
{
switch(s) {
Expand All @@ -39,6 +40,17 @@ static const char* state2str(uint8_t s)
}
}

static const char* upFlag2str(uint8_t s)
{
switch(s) {
case SECT_FLAG_NEW: return "New";
case SECT_FLAG_SWAPPING: return "Swapping";
case SECT_FLAG_BACKUP: return "Backup";
case SECT_FLAG_UPDATED: return "Updated";
default: return "Unknown";
}
}

static void printPart(uint8_t *part)
{
#ifdef WOLFBOOT_DEBUG_PARTION
Expand All @@ -47,16 +59,21 @@ static void printPart(uint8_t *part)
#endif
uint8_t *magic;
uint8_t state;
uint8_t upflag;
uint32_t ver;

magic = part;
printf("Magic: %c%c%c%c\n", magic[0], magic[1], magic[2], magic[3]);
ver = wolfBoot_get_blob_version(part);
printf("Version: %02x\n", ver);
state = *(part + WOLFBOOT_PARTITION_SIZE - sizeof(uint32_t) - 1);
wolfBoot_get_partition_state(0, &state);
printf("Status: %02x (%s)\n", state,state2str(state));
magic = part + WOLFBOOT_PARTITION_SIZE - sizeof(uint32_t);
if (magic[0] != 0x42)
magic = part + WOLFBOOT_PARTITION_SIZE - WOLFBOOT_SECTOR_SIZE - sizeof(uint32_t);
printf("Trailer Mgc: %c%c%c%c\n", magic[0], magic[1], magic[2], magic[3]);
wolfBoot_get_update_sector_flag(0, &upflag);
printf("Update flag: %02x (%s)\n", upflag, upFlag2str(upflag));

#ifdef WOLFBOOT_DEBUG_PARTION
v = (uint32_t *)part;
Expand All @@ -68,14 +85,25 @@ static void printPart(uint8_t *part)
#endif

}

#ifdef WOLFBOOT_DEBUG_PARTION
static void verify_flash_write(uint32_t addr, int len)
{
uint8_t *p = (uint8_t *)addr;
int i;
printf("verify addr=0x%08x: ", addr);
for (i = 0; i < len && i < 8; i++) {
printf("%02x ", p[i]);
}
printf("\n");
}
#endif

static void printPartitions(void)
{
printf("\n=== Boot Partition[%08x] ===\n", WOLFBOOT_PARTITION_BOOT_ADDRESS);
printPart((uint8_t*)WOLFBOOT_PARTITION_BOOT_ADDRESS);
printf("\n=== Update Partition[%08x] ===\n", WOLFBOOT_PARTITION_UPDATE_ADDRESS);
printPart((uint8_t*)WOLFBOOT_PARTITION_UPDATE_ADDRESS);
printPart((uint8_t*)(uintptr_t)WOLFBOOT_PARTITION_UPDATE_ADDRESS);
}

void main(void)
Expand Down
3 changes: 2 additions & 1 deletion IDE/Renesas/e2studio/RX72N/include/user_settings.h
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Expand Up @@ -278,5 +278,6 @@
#else
# define WOLFSSL_SMALL_STACK
#endif

#define PRINTF_ENABLED
#define NVM_FLASH_WRITEONCE
#endif /* !H_USER_SETTINGS_ */
11 changes: 6 additions & 5 deletions IDE/Renesas/e2studio/RX72N/resouce/section_info_SWuse.esi
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Original file line number Diff line number Diff line change
@@ -1,9 +1,8 @@
<?xml version="1.0" encoding="ASCII"?>
<com.renesas.linkersection.model:SectionContainer xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:com.renesas.linkersection.model="http:///LinkerSection.ecore">
<sections name="SU">
<sections name="SI">
<sectionAddress xsi:type="com.renesas.linkersection.model:FixedAddress" fixedAddress="4"/>
</sections>
<sections name="SI"/>
<sections name="B_1"/>
<sections name="R_1"/>
<sections name="B_2"/>
Expand All @@ -13,9 +12,12 @@
<sections name="B_8"/>
<sections name="R_8"/>
<sections name="RPFRAM"/>
<sections name="RPFRAM2"/>
<sections name="C_FIRMWARE_UPDATE_CONTROL_BLOCK">
<sectionAddress xsi:type="com.renesas.linkersection.model:FixedAddress" fixedAddress="1048576"/>
</sections>
<sections name="C_FIRMWARE_UPDATE_CONTROL_BLOCK_MIRROR"/>
<sections name="PResetPRG">
<sectionAddress xsi:type="com.renesas.linkersection.model:FixedAddress" fixedAddress="4290839040"/>
<sectionAddress xsi:type="com.renesas.linkersection.model:FixedAddress" fixedAddress="4290772992"/>
</sections>
<sections name="C_1"/>
<sections name="C_2"/>
Expand All @@ -27,7 +29,6 @@
<sections name="L"/>
<sections name="P"/>
<sections name="PFRAM"/>
<sections name="PFRAM2"/>
<sections name="EXCEPTVECT">
<sectionAddress xsi:type="com.renesas.linkersection.model:FixedAddress" fixedAddress="4294967168"/>
</sections>
Expand Down
146 changes: 108 additions & 38 deletions IDE/Renesas/e2studio/RX72N/wolfBoot/.cproject
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83 changes: 64 additions & 19 deletions hal/renesas-rx.c
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Expand Up @@ -61,12 +61,13 @@

/* forward declaration */
int hal_flash_init(void);

#if defined(WOLFBOOT_RENESAS_TSIP) && !defined(WOLFBOOT_RENESAS_APP)
static void hal_panic(void)
{
while(1)
;
}
#endif

#ifdef ENABLE_LED
void hal_led_on(void)
Expand Down Expand Up @@ -104,6 +105,21 @@ void hal_delay_us(uint32_t us)
}
}

static flash_err_t flash_check_error()
{
uint32_t st = FLASH_FSTATR;

if (st & FLASH_FSTATR_ILGLERR) return FLASH_ERR_ILGL;
if (st & FLASH_FSTATR_PRGERR) return FLASH_ERR_PRG;
if (st & FLASH_FSTATR_ERSERR) return FLASH_ERR_ERS;
if (st & FLASH_FSTATR_FLWEERR) return FLASH_ERR_FLWE;
if (st & FLASH_FSTATR_FESETERR) return FLASH_ERR_FESET;
if (st & FLASH_FSTATR_SECERR) return FLASH_ERR_SEC;
if (st & FLASH_FSTATR_OTERR) return FLASH_ERR_OT;

return FLASH_OK;

}
#ifdef DEBUG_UART

#ifndef DEBUG_UART_SCI
Expand Down Expand Up @@ -210,7 +226,6 @@ void uart_write(const char* buf, unsigned int sz)
void hal_clk_init(void)
{
uint32_t reg, i;
uint16_t stc;
uint8_t cksel = CFG_CKSEL;

PROTECT_OFF(); /* write protect off */
Expand Down Expand Up @@ -485,8 +500,23 @@ void hal_prepare_boot(void)

}

#ifdef __CCRX__
/* copy RAM functions from ROM to RAM */
static void copyfuncs(void)
{
unsigned char *dst, *src;
src = __sectop("PFRAM");
dst = __sectop("RPFRAM");
while(src < __secend("PFRAM")) {
*dst++ = *src++;
}
}
#endif
int hal_flash_init(void)
{
#ifdef __CCRX__
copyfuncs();
#endif
/* Flash Write Enable */
FLASH_FWEPROR = FLASH_FWEPROR_FLWE;

Expand All @@ -506,23 +536,34 @@ int hal_flash_init(void)
/* write up to 128 bytes at a time */
#define FLASH_FACI_CODE_BLOCK_SZ \
(FLASH_FACI_CMD_PROGRAM_CODE_LENGTH * FLASH_FACI_CMD_PROGRAM_DATA_LENGTH)
#ifdef __CCRX__
#pragma section FRAM
#endif
int RAMFUNCTION hal_flash_write(uint32_t addr, const uint8_t *data, int len)
{
int ret, i, chunk;
uint8_t codeblock[FLASH_FACI_CODE_BLOCK_SZ];
int i;
uint8_t codeblock[FLASH_FACI_CODE_BLOCK_SZ] = {0};
uint16_t* data16 = (uint16_t*)data;
uint32_t block_base;
uint32_t offset;
int write_size;
int ret;

while (len > 0) {
/* handle partial remainder */
if (len < FLASH_FACI_CODE_BLOCK_SZ) {
uint8_t *src = (uint8_t*)addr;
int remain = FLASH_FACI_CODE_BLOCK_SZ - len;
memcpy(codeblock, data16, len);
memcpy(codeblock + len, src + len, remain);
data16 = (uint16_t*)codeblock;
}
/* Align address to 128-byte boundary */
block_base = addr & ~(FLASH_FACI_CODE_BLOCK_SZ - 1);
offset = addr - block_base;

XMEMCPY(codeblock, (uint8_t*)block_base, FLASH_FACI_CODE_BLOCK_SZ);
write_size = FLASH_FACI_CODE_BLOCK_SZ - offset;
if (write_size > len)
write_size = len;

XMEMCPY(&codeblock[offset], data, write_size);
data16 = (uint16_t*)codeblock;

FLASH_FSADDR = addr;

FLASH_FSADDR = block_base;
/* flash program command */
FLASH_FACI_CMD8 = FLASH_FACI_CMD_PROGRAM;
/* number of 16-bit blocks: for code blocks is always 0x40 (64) */
Expand All @@ -539,9 +580,12 @@ int RAMFUNCTION hal_flash_write(uint32_t addr, const uint8_t *data, int len)

/* Wait for FCU operation to complete */
while ((FLASH_FSTATR & FLASH_FSTATR_FRDY) == 0);

len -= FLASH_FACI_CODE_BLOCK_SZ;
addr += FLASH_FACI_CODE_BLOCK_SZ;
if ((ret = flash_check_error()) != FLASH_OK) {
return ret;
}
len -= write_size;
addr += write_size;
data += write_size;
}
return 0;
}
Expand Down Expand Up @@ -579,7 +623,6 @@ int RAMFUNCTION hal_flash_erase(uint32_t address, int len)

static int RAMFUNCTION hal_flash_write_faw(uint32_t faw)
{
volatile uint8_t* cmdArea = (volatile uint8_t*)FLASH_FACI_CMD_AREA;

#ifndef BIG_ENDIAN_ORDER
#if defined(__CCRX__)
Expand Down Expand Up @@ -639,7 +682,9 @@ void RAMFUNCTION hal_flash_lock(void)
FLASH_FENTRYR_CODE_READ | FLASH_FENTRYR_DATA_READ);
return;
}

#ifdef __CCRX__
#pragma section
#endif
#if !defined(WOLFBOOT_NO_PARTITIONS) && !defined(TARGET_library)
void* hal_get_primary_address(void)
{
Expand All @@ -648,6 +693,6 @@ void* hal_get_primary_address(void)

void* hal_get_update_address(void)
{
return (void*)WOLFBOOT_PARTITION_UPDATE_ADDRESS;
return (void*)(uintptr_t)WOLFBOOT_PARTITION_UPDATE_ADDRESS;
}
#endif
11 changes: 11 additions & 0 deletions hal/renesas-rx.h
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Expand Up @@ -411,4 +411,15 @@ void hal_delay_us(uint32_t us);
#define ICU_PIBR(x) (*(volatile uint8_t *)(SYSTEM_BASE + 0x7700 + (x)))
#define ICU_PIAR(x) (*(volatile uint8_t *)(SYSTEM_BASE + 0x7900 + (x)))

typedef enum {
FLASH_ERR_ILGL = -7,
FLASH_ERR_PRG = -6,
FLASH_ERR_ERS = -5,
FLASH_ERR_FLWE = -4,
FLASH_ERR_FESET = -3,
FLASH_ERR_SEC = -2,
FLASH_ERR_OT = -1,
FLASH_ERR_UNKNOWN = -99,
FLASH_OK = 0
} flash_err_t;
#endif /* !_WOLFBOOT_RENESAS_RX_H_ */
11 changes: 11 additions & 0 deletions src/boot_renesas.c
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Expand Up @@ -55,6 +55,16 @@ static void longJump(const uint32_t *app_offset)
jmp r1;
}
#endif
static void verify_flash_write(uint32_t addr, int len)
{
uint8_t *p = (uint8_t *)addr;
int i;
printf("verify addr=0x%08x: ", addr);
for (i = 0; i < len && i < 8; i++) {
printf("%02x ", p[i]);
}
printf("\n");
}

/* Calls the application entry point */
void do_boot(const uint32_t *app_offset)
Expand Down Expand Up @@ -84,6 +94,7 @@ void do_boot(const uint32_t *app_offset)
#if defined(__RX__)
/* Do unconditional jump (r1 = app_offset) */
#if defined(__CCRX__)
printf("app_offset 0x%p\n", app_offset);
longJump(app_offset);
#else
app_entry = (void(*))(*app_offset);
Expand Down
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