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Merge pull request #7675 from TomoYamanaka/improve_flashiap 

Renesas : Improve Flash iap
pull/7604/merge
Cruz Monrreal 2018-08-02 10:12:21 -05:00 committed by GitHub
parent 4000e009c1 04fcd33f15
commit e016d8d84d
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 64 additions and 39 deletions
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1
targets/TARGET_RENESAS/TARGET_RZ_A1XX/TARGET_GR_LYCHEE/mbed_drv_cfg.h
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@ -40,6 +40,7 @@
#define FLASH_BASE (0x18000000UL) /**< Flash Base Address */ #define FLASH_BASE (0x18000000UL) /**< Flash Base Address */
#define FLASH_SIZE (0x00800000UL) /**< Available Flash Memory */ #define FLASH_SIZE (0x00800000UL) /**< Available Flash Memory */
#define FLASH_PAGE_SIZE 256 /**< Flash Memory page size (interleaving off) */ #define FLASH_PAGE_SIZE 256 /**< Flash Memory page size (interleaving off) */
/**< Maximum size per one writing is 256 byte and minimum size per one writing is 1 byte */
#define FLASH_SECTOR_SIZE 4096 /**< Flash Memory sector size (interleaving off) */ #define FLASH_SECTOR_SIZE 4096 /**< Flash Memory sector size (interleaving off) */
#endif #endif

1
targets/TARGET_RENESAS/TARGET_RZ_A1XX/TARGET_RZ_A1H/mbed_drv_cfg.h
View File

@ -40,6 +40,7 @@
#define FLASH_BASE (0x18000000UL) /**< Flash Base Address */ #define FLASH_BASE (0x18000000UL) /**< Flash Base Address */
#define FLASH_SIZE (0x00800000UL) /**< Available Flash Memory */ #define FLASH_SIZE (0x00800000UL) /**< Available Flash Memory */
#define FLASH_PAGE_SIZE 256 /**< Flash Memory page size (interleaving off) */ #define FLASH_PAGE_SIZE 256 /**< Flash Memory page size (interleaving off) */
/**< Maximum size per one writing is 256 byte and minimum size per one writing is 1 byte */
#define FLASH_SECTOR_SIZE 4096 /**< Flash Memory sector size (interleaving off) */ #define FLASH_SECTOR_SIZE 4096 /**< Flash Memory sector size (interleaving off) */
#endif #endif

27
targets/TARGET_RENESAS/TARGET_RZ_A1XX/flash_api.c
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@ -167,7 +167,7 @@ uint32_t flash_get_sector_size(const flash_t *obj, uint32_t address)
uint32_t flash_get_page_size(const flash_t *obj) uint32_t flash_get_page_size(const flash_t *obj)
{ {
return FLASH_PAGE_SIZE; return 1;
} }
uint32_t flash_get_start_address(const flash_t *obj) uint32_t flash_get_start_address(const flash_t *obj)
@ -222,9 +222,23 @@ int32_t _sector_erase(uint32_t addr)
int32_t _page_program(uint32_t addr, const uint8_t * buf, int32_t size) int32_t _page_program(uint32_t addr, const uint8_t * buf, int32_t size)
{ {
int32_t ret; int32_t ret;
int32_t program_size;
int32_t remainder;
int32_t idx = 0;
spi_mode(); spi_mode();
while (size > 0) {
if (size > FLASH_PAGE_SIZE) {
program_size = FLASH_PAGE_SIZE;
} else {
program_size = size;
}
remainder = FLASH_PAGE_SIZE - (addr % FLASH_PAGE_SIZE);
if ((remainder != 0) && (program_size > remainder)) {
program_size = remainder;
}
/* ---- Write enable ---- */ /* ---- Write enable ---- */
ret = write_enable(); /* WREN Command */ ret = write_enable(); /* WREN Command */
if (ret != 0) { if (ret != 0) {
@ -257,13 +271,22 @@ int32_t _page_program(uint32_t addr, const uint8_t * buf, int32_t size)
} }
/* ----------- 2. Data ---------------*/ /* ----------- 2. Data ---------------*/
ret = data_send(SPIBSC_1BIT, SPIBSC_SPISSL_NEGATE, buf, size); ret = data_send(SPIBSC_1BIT, SPIBSC_SPISSL_NEGATE, &buf[idx], program_size);
if (ret != 0) { if (ret != 0) {
ex_mode(); ex_mode();
return ret; return ret;
} }
ret = busy_wait(); ret = busy_wait();
if (ret != 0) {
ex_mode();
return ret;
}
addr += program_size;
idx += program_size;
size -= program_size;
}
ex_mode(); ex_mode();
return ret; return ret;