From: Tomas Vanek Date: Fri, 2 Oct 2015 09:00:07 +0000 (+0200) Subject: Kinetis: invalidate flash cache after erase/write X-Git-Tag: v0.10.0-rc1~257 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=b32b2fcadf59986e18bf3c24171be5e17d60447d;p=openocd Kinetis: invalidate flash cache after erase/write Cached old flash contents broke verify readback on Kx devices. Change-Id: I0effaf358f451b473f0d9c762a133ffd21bc64b4 Signed-off-by: Tomas Vanek Reviewed-on: http://openocd.zylin.com/2993 Tested-by: jenkins --- diff --git a/src/flash/nor/kinetis.c b/src/flash/nor/kinetis.c index 99fafec9..db098bbb 100644 --- a/src/flash/nor/kinetis.c +++ b/src/flash/nor/kinetis.c @@ -82,6 +82,8 @@ /* Addressess */ #define FLEXRAM 0x14000000 + +#define FMC_PFB01CR 0x4001f004 #define FTFx_FSTAT 0x40020000 #define FTFx_FCNFG 0x40020001 #define FTFx_FCCOB3 0x40020004 @@ -216,6 +218,7 @@ struct kinetis_flash_bank { FS_PROGRAM_SECTOR = 1, FS_PROGRAM_LONGWORD = 2, FS_PROGRAM_PHRASE = 4, /* Unsupported */ + FS_INVALIDATE_CACHE = 8, } flash_support; }; @@ -948,6 +951,19 @@ static int kinetis_ftfx_command(struct target *target, uint8_t fcmd, uint32_t fa } +static void kinetis_invalidate_flash_cache(struct flash_bank *bank) +{ + struct kinetis_flash_bank *kinfo = bank->driver_priv; + uint8_t pfb01cr_byte2 = 0xf0; + + if (!(kinfo->flash_support & FS_INVALIDATE_CACHE)) + return; + + target_write_memory(bank->target, FMC_PFB01CR + 2, 1, 1, &pfb01cr_byte2); + return; +} + + static int kinetis_erase(struct flash_bank *bank, int first, int last) { int result, i; @@ -980,6 +996,8 @@ static int kinetis_erase(struct flash_bank *bank, int first, int last) bank->sectors[i].is_erased = 1; } + kinetis_invalidate_flash_cache(bank); + if (first == 0) { LOG_WARNING ("flash configuration field erased, please reset the device"); @@ -1179,6 +1197,7 @@ static int kinetis_write(struct flash_bank *bank, const uint8_t *buffer, return ERROR_FLASH_OPERATION_FAILED; } + kinetis_invalidate_flash_cache(bank); return ERROR_OK; } @@ -1211,7 +1230,7 @@ static int kinetis_read_part_info(struct flash_bank *bank) pflash_sector_size_bytes = 1<<10; nvm_sector_size_bytes = 1<<10; num_blocks = 2; - kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_PROGRAM_SECTOR; + kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE; break; case KINETIS_K_SDID_K10_M72: case KINETIS_K_SDID_K20_M72: @@ -1224,7 +1243,7 @@ static int kinetis_read_part_info(struct flash_bank *bank) pflash_sector_size_bytes = 2<<10; nvm_sector_size_bytes = 1<<10; num_blocks = 2; - kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_PROGRAM_SECTOR; + kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE; kinfo->max_flash_prog_size = 1<<10; break; case KINETIS_K_SDID_K10_M100: @@ -1240,7 +1259,7 @@ static int kinetis_read_part_info(struct flash_bank *bank) pflash_sector_size_bytes = 2<<10; nvm_sector_size_bytes = 2<<10; num_blocks = 2; - kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_PROGRAM_SECTOR; + kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE; break; case KINETIS_K_SDID_K21_M120: case KINETIS_K_SDID_K22_M120: @@ -1249,7 +1268,7 @@ static int kinetis_read_part_info(struct flash_bank *bank) kinfo->max_flash_prog_size = 1<<10; nvm_sector_size_bytes = 4<<10; num_blocks = 2; - kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR; + kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE; break; case KINETIS_K_SDID_K10_M120: case KINETIS_K_SDID_K20_M120: @@ -1259,7 +1278,7 @@ static int kinetis_read_part_info(struct flash_bank *bank) pflash_sector_size_bytes = 4<<10; nvm_sector_size_bytes = 4<<10; num_blocks = 4; - kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR; + kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE; break; default: LOG_ERROR("Unsupported K-family FAMID"); @@ -1273,7 +1292,7 @@ static int kinetis_read_part_info(struct flash_bank *bank) /* K02FN64, K02FN128: FTFA, 2kB sectors */ pflash_sector_size_bytes = 2<<10; num_blocks = 1; - kinfo->flash_support = FS_PROGRAM_LONGWORD; + kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_INVALIDATE_CACHE; break; case KINETIS_SDID_FAMILYID_K2X | KINETIS_SDID_SUBFAMID_KX2: { @@ -1288,7 +1307,7 @@ static int kinetis_read_part_info(struct flash_bank *bank) /* MK24FN1M */ pflash_sector_size_bytes = 4<<10; num_blocks = 2; - kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR; + kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE; kinfo->max_flash_prog_size = 1<<10; break; } @@ -1298,7 +1317,7 @@ static int kinetis_read_part_info(struct flash_bank *bank) /* K22 with new-style SDID - smaller pflash with FTFA, 2kB sectors */ pflash_sector_size_bytes = 2<<10; /* autodetect 1 or 2 blocks */ - kinfo->flash_support = FS_PROGRAM_LONGWORD; + kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_INVALIDATE_CACHE; break; } LOG_ERROR("Unsupported Kinetis K22 DIEID"); @@ -1309,12 +1328,12 @@ static int kinetis_read_part_info(struct flash_bank *bank) if ((kinfo->sim_sdid & (KINETIS_SDID_DIEID_MASK)) == KINETIS_SDID_DIEID_K24FN256) { /* K24FN256 - smaller pflash with FTFA */ num_blocks = 1; - kinfo->flash_support = FS_PROGRAM_LONGWORD; + kinfo->flash_support = FS_PROGRAM_LONGWORD | FS_INVALIDATE_CACHE; break; } /* K24FN1M without errata 7534 */ num_blocks = 2; - kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR; + kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE; kinfo->max_flash_prog_size = 1<<10; break; @@ -1328,7 +1347,7 @@ static int kinetis_read_part_info(struct flash_bank *bank) nvm_sector_size_bytes = 4<<10; kinfo->max_flash_prog_size = 1<<10; num_blocks = 2; - kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR; + kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE; break; case KINETIS_SDID_FAMILYID_K2X | KINETIS_SDID_SUBFAMID_KX6: @@ -1339,7 +1358,7 @@ static int kinetis_read_part_info(struct flash_bank *bank) nvm_sector_size_bytes = 4<<10; kinfo->max_flash_prog_size = 1<<10; num_blocks = 4; - kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR; + kinfo->flash_support = FS_PROGRAM_PHRASE | FS_PROGRAM_SECTOR | FS_INVALIDATE_CACHE; break; default: LOG_ERROR("Unsupported Kinetis FAMILYID SUBFAMID");