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Code Issues Releases Activity

flash: verify JEDEC ID during flash init

Browse Source 
Verify that the flash component on the board matches exactly
what we're expecting.  This is a simple way to verify that we
are communicating properly with the JEDEC flash chip.

Conflicts:
	flight/targets/board_hw_defs/freedom/board_hw_defs.c
	flight/targets/board_hw_defs/quanton/board_hw_defs.c
This commit is contained in:
Stacey Sheldon 2012-12-14 23:16:31 -05:00 committed by Alessio Morale
parent 17b8696261
commit b6eeb59b26
5 changed files with 42 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
flight/PiOS/Common/pios_flash_jedec.c
View File

@ -49,8 +49,6 @@
#define JEDEC_STATUS_SEC 0x40
#define JEDEC_STATUS_SRP0 0x80
static uint8_t device_type;
enum pios_jedec_dev_magic {
PIOS_JEDEC_DEV_MAGIC = 0xcb55aa55,
};
@ -60,8 +58,11 @@ struct jedec_flash_dev {
uint32_t spi_id;
uint32_t slave_num;
bool claimed;
uint32_t device_type;
uint32_t capacity;
uint8_t manufacturer;
uint8_t memorytype;
uint8_t capacity;
const struct pios_flash_jedec_cfg * cfg;
#if defined(FLASH_FREERTOS)
xSemaphoreHandle transaction_lock;
@ -124,9 +125,13 @@ int32_t PIOS_Flash_Jedec_Init(uintptr_t * flash_id, uint32_t spi_id, uint32_t sl
flash_dev->slave_num = slave_num;
flash_dev->cfg = cfg;
device_type = PIOS_Flash_Jedec_ReadID(flash_dev);
if (device_type == 0)
(void) PIOS_Flash_Jedec_ReadID(flash_dev);
if ((flash_dev->manufacturer != flash_dev->cfg->expect_manufacturer) ||
(flash_dev->memorytype != flash_dev->cfg->expect_memorytype) ||
(flash_dev->capacity != flash_dev->cfg->expect_capacity)) {
/* Mismatched device has been discovered */
return -1;
}
/* Give back a handle to this flash device */
*flash_id = (uintptr_t) flash_dev;
@ -227,10 +232,11 @@ static int32_t PIOS_Flash_Jedec_ReadID(struct jedec_flash_dev * flash_dev)
PIOS_Flash_Jedec_ReleaseBus(flash_dev);
flash_dev->device_type = in[1];
flash_dev->manufacturer = in[1];
flash_dev->memorytype = in[2];
flash_dev->capacity = in[3];
return in[1];
return flash_dev->manufacturer;
}
/**********************************

7
flight/PiOS/inc/pios_flash_jedec_priv.h
View File

@ -35,7 +35,14 @@
extern const struct pios_flash_driver pios_jedec_flash_driver;
#define JEDEC_MANUFACTURER_ST 0x20
#define JEDEC_MANUFACTURER_MACRONIX 0xC2
#define JEDEC_MANUFACTURER_WINBOND 0xEF
struct pios_flash_jedec_cfg {
uint8_t expect_manufacturer;
uint8_t expect_memorytype;
uint8_t expect_capacity;
uint32_t sector_erase;
uint32_t chip_erase;
};

8
flight/targets/board_hw_defs/coptercontrol/board_hw_defs.c
View File

@ -415,6 +415,9 @@ static const struct flashfs_logfs_cfg flashfs_w25x_cfg = {
};
static const struct pios_flash_jedec_cfg flash_w25x_cfg = {
.expect_manufacturer = JEDEC_MANUFACTURER_WINBOND,
.expect_memorytype = 0x30,
.expect_capacity = 0x13,
.sector_erase = 0x20,
.chip_erase = 0x60
};
@ -431,8 +434,11 @@ static const struct flashfs_logfs_cfg flashfs_m25p_cfg = {
};
static const struct pios_flash_jedec_cfg flash_m25p_cfg = {
.expect_manufacturer = JEDEC_MANUFACTURER_ST,
.expect_memorytype = 0x20,
.expect_capacity = 0x15,
.sector_erase = 0xD8,
.chip_erase = 0xC7
.chip_erase = 0xC7,
};
#include "pios_flash.h"

5
flight/targets/board_hw_defs/revolution/board_hw_defs.c
View File

@ -463,8 +463,11 @@ static const struct flashfs_logfs_cfg flashfs_m25p_cfg = {
};
static const struct pios_flash_jedec_cfg flash_m25p_cfg = {
.expect_manufacturer = JEDEC_MANUFACTURER_ST,
.expect_memorytype = 0x20,
.expect_capacity = 0x15,
.sector_erase = 0xD8,
.chip_erase = 0xC7
.chip_erase = 0xC7,
};
#endif /* PIOS_INCLUDE_FLASH */

5
flight/targets/board_hw_defs/revomini/board_hw_defs.c
View File

@ -578,8 +578,11 @@ static const struct flashfs_logfs_cfg flashfs_m25p_cfg = {
};
static const struct pios_flash_jedec_cfg flash_m25p_cfg = {
.expect_manufacturer = JEDEC_MANUFACTURER_ST,
.expect_memorytype = 0x20,
.expect_capacity = 0x15,
.sector_erase = 0xD8,
.chip_erase = 0xC7
.chip_erase = 0xC7,
};
#endif /* PIOS_INCLUDE_FLASH */