X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Fflash%2Fnor%2Fnrf5.c;h=f56f32e329e9ada0ed4e6267c1782872980bff64;hb=491636c8b8328a54bef41b68771c2965dd468e05;hp=426f287332999eed346d9845cb9587961ba2b996;hpb=5da746fa09dc1fbc28b4b4431035f5058a7e76a2;p=openocd.git diff --git a/src/flash/nor/nrf5.c b/src/flash/nor/nrf5.c index 426f287332..f56f32e329 100644 --- a/src/flash/nor/nrf5.c +++ b/src/flash/nor/nrf5.c @@ -28,6 +28,10 @@ #include #include +/* Both those values are constant across the current spectrum ofr nRF5 devices */ +#define WATCHDOG_REFRESH_REGISTER 0x40010600 +#define WATCHDOG_REFRESH_VALUE 0x6e524635 + enum { NRF5_FLASH_BASE = 0x00000000, }; @@ -39,13 +43,15 @@ enum nrf5_ficr_registers { NRF5_FICR_CODEPAGESIZE = NRF5_FICR_REG(0x010), NRF5_FICR_CODESIZE = NRF5_FICR_REG(0x014), - NRF5_FICR_CLENR0 = NRF5_FICR_REG(0x028), - NRF5_FICR_PPFC = NRF5_FICR_REG(0x02C), - NRF5_FICR_NUMRAMBLOCK = NRF5_FICR_REG(0x034), - NRF5_FICR_SIZERAMBLOCK0 = NRF5_FICR_REG(0x038), - NRF5_FICR_SIZERAMBLOCK1 = NRF5_FICR_REG(0x03C), - NRF5_FICR_SIZERAMBLOCK2 = NRF5_FICR_REG(0x040), - NRF5_FICR_SIZERAMBLOCK3 = NRF5_FICR_REG(0x044), + + NRF51_FICR_CLENR0 = NRF5_FICR_REG(0x028), + NRF51_FICR_PPFC = NRF5_FICR_REG(0x02C), + NRF51_FICR_NUMRAMBLOCK = NRF5_FICR_REG(0x034), + NRF51_FICR_SIZERAMBLOCK0 = NRF5_FICR_REG(0x038), + NRF51_FICR_SIZERAMBLOCK1 = NRF5_FICR_REG(0x03C), + NRF51_FICR_SIZERAMBLOCK2 = NRF5_FICR_REG(0x040), + NRF51_FICR_SIZERAMBLOCK3 = NRF5_FICR_REG(0x044), + NRF5_FICR_CONFIGID = NRF5_FICR_REG(0x05C), NRF5_FICR_DEVICEID0 = NRF5_FICR_REG(0x060), NRF5_FICR_DEVICEID1 = NRF5_FICR_REG(0x064), @@ -60,17 +66,18 @@ enum nrf5_ficr_registers { NRF5_FICR_DEVICEADDRTYPE = NRF5_FICR_REG(0x0A0), NRF5_FICR_DEVICEADDR0 = NRF5_FICR_REG(0x0A4), NRF5_FICR_DEVICEADDR1 = NRF5_FICR_REG(0x0A8), - NRF5_FICR_OVERRIDEN = NRF5_FICR_REG(0x0AC), - NRF5_FICR_NRF_1MBIT0 = NRF5_FICR_REG(0x0B0), - NRF5_FICR_NRF_1MBIT1 = NRF5_FICR_REG(0x0B4), - NRF5_FICR_NRF_1MBIT2 = NRF5_FICR_REG(0x0B8), - NRF5_FICR_NRF_1MBIT3 = NRF5_FICR_REG(0x0BC), - NRF5_FICR_NRF_1MBIT4 = NRF5_FICR_REG(0x0C0), - NRF5_FICR_BLE_1MBIT0 = NRF5_FICR_REG(0x0EC), - NRF5_FICR_BLE_1MBIT1 = NRF5_FICR_REG(0x0F0), - NRF5_FICR_BLE_1MBIT2 = NRF5_FICR_REG(0x0F4), - NRF5_FICR_BLE_1MBIT3 = NRF5_FICR_REG(0x0F8), - NRF5_FICR_BLE_1MBIT4 = NRF5_FICR_REG(0x0FC), + + NRF51_FICR_OVERRIDEN = NRF5_FICR_REG(0x0AC), + NRF51_FICR_NRF_1MBIT0 = NRF5_FICR_REG(0x0B0), + NRF51_FICR_NRF_1MBIT1 = NRF5_FICR_REG(0x0B4), + NRF51_FICR_NRF_1MBIT2 = NRF5_FICR_REG(0x0B8), + NRF51_FICR_NRF_1MBIT3 = NRF5_FICR_REG(0x0BC), + NRF51_FICR_NRF_1MBIT4 = NRF5_FICR_REG(0x0C0), + NRF51_FICR_BLE_1MBIT0 = NRF5_FICR_REG(0x0EC), + NRF51_FICR_BLE_1MBIT1 = NRF5_FICR_REG(0x0F0), + NRF51_FICR_BLE_1MBIT2 = NRF5_FICR_REG(0x0F4), + NRF51_FICR_BLE_1MBIT3 = NRF5_FICR_REG(0x0F8), + NRF51_FICR_BLE_1MBIT4 = NRF5_FICR_REG(0x0FC), /* Following registers are available on nRF52 and on nRF51 since rev 3 */ NRF5_FICR_INFO_PART = NRF5_FICR_REG(0x100), @@ -82,14 +89,14 @@ enum nrf5_ficr_registers { enum nrf5_uicr_registers { NRF5_UICR_BASE = 0x10001000, /* User Information - * Configuration Regsters */ + * Configuration Registers */ #define NRF5_UICR_REG(offset) (NRF5_UICR_BASE + offset) - NRF5_UICR_CLENR0 = NRF5_UICR_REG(0x000), - NRF5_UICR_RBPCONF = NRF5_UICR_REG(0x004), - NRF5_UICR_XTALFREQ = NRF5_UICR_REG(0x008), - NRF5_UICR_FWID = NRF5_UICR_REG(0x010), + NRF51_UICR_CLENR0 = NRF5_UICR_REG(0x000), + NRF51_UICR_RBPCONF = NRF5_UICR_REG(0x004), + NRF51_UICR_XTALFREQ = NRF5_UICR_REG(0x008), + NRF51_UICR_FWID = NRF5_UICR_REG(0x010), }; enum nrf5_nvmc_registers { @@ -103,6 +110,8 @@ enum nrf5_nvmc_registers { NRF5_NVMC_ERASEPAGE = NRF5_NVMC_REG(0x508), NRF5_NVMC_ERASEALL = NRF5_NVMC_REG(0x50C), NRF5_NVMC_ERASEUICR = NRF5_NVMC_REG(0x514), + + NRF5_BPROT_BASE = 0x40000000, }; enum nrf5_nvmc_config_bits { @@ -120,12 +129,20 @@ struct nrf52_ficr_info { uint32_t flash; }; +enum nrf5_features { + NRF5_FEATURE_SERIES_51 = 1 << 0, + NRF5_FEATURE_SERIES_52 = 1 << 1, + NRF5_FEATURE_BPROT = 1 << 2, + NRF5_FEATURE_ACL_PROT = 1 << 3, +}; + struct nrf5_device_spec { uint16_t hwid; const char *part; const char *variant; const char *build_code; unsigned int flash_size_kb; + enum nrf5_features features; }; struct nrf5_info { @@ -142,16 +159,29 @@ struct nrf5_info { struct nrf52_ficr_info ficr_info; const struct nrf5_device_spec *spec; uint32_t hwid; + enum nrf5_features features; unsigned int flash_size_kb; + unsigned int ram_size_kb; }; -#define NRF5_DEVICE_DEF(id, pt, var, bcode, fsize) \ +#define NRF51_DEVICE_DEF(id, pt, var, bcode, fsize) \ +{ \ +.hwid = (id), \ +.part = pt, \ +.variant = var, \ +.build_code = bcode, \ +.flash_size_kb = (fsize), \ +.features = NRF5_FEATURE_SERIES_51, \ +} + +#define NRF5_DEVICE_DEF(id, pt, var, bcode, fsize, features) \ { \ .hwid = (id), \ .part = pt, \ .variant = var, \ .build_code = bcode, \ .flash_size_kb = (fsize), \ +.features = features, \ } /* The known devices table below is derived from the "nRF5x series @@ -173,73 +203,73 @@ struct nrf5_info { */ static const struct nrf5_device_spec nrf5_known_devices_table[] = { /* nRF51822 Devices (IC rev 1). */ - NRF5_DEVICE_DEF(0x001D, "51822", "QFAA", "CA/C0", 256), - NRF5_DEVICE_DEF(0x0026, "51822", "QFAB", "AA", 128), - NRF5_DEVICE_DEF(0x0027, "51822", "QFAB", "A0", 128), - NRF5_DEVICE_DEF(0x0020, "51822", "CEAA", "BA", 256), - NRF5_DEVICE_DEF(0x002F, "51822", "CEAA", "B0", 256), + NRF51_DEVICE_DEF(0x001D, "51822", "QFAA", "CA/C0", 256), + NRF51_DEVICE_DEF(0x0026, "51822", "QFAB", "AA", 128), + NRF51_DEVICE_DEF(0x0027, "51822", "QFAB", "A0", 128), + NRF51_DEVICE_DEF(0x0020, "51822", "CEAA", "BA", 256), + NRF51_DEVICE_DEF(0x002F, "51822", "CEAA", "B0", 256), /* Some early nRF51-DK (PCA10028) & nRF51-Dongle (PCA10031) boards with built-in jlink seem to use engineering samples not listed in the nRF51 Series Compatibility Matrix V1.0. */ - NRF5_DEVICE_DEF(0x0071, "51822", "QFAC", "AB", 256), + NRF51_DEVICE_DEF(0x0071, "51822", "QFAC", "AB", 256), /* nRF51822 Devices (IC rev 2). */ - NRF5_DEVICE_DEF(0x002A, "51822", "QFAA", "FA0", 256), - NRF5_DEVICE_DEF(0x0044, "51822", "QFAA", "GC0", 256), - NRF5_DEVICE_DEF(0x003C, "51822", "QFAA", "G0", 256), - NRF5_DEVICE_DEF(0x0057, "51822", "QFAA", "G2", 256), - NRF5_DEVICE_DEF(0x0058, "51822", "QFAA", "G3", 256), - NRF5_DEVICE_DEF(0x004C, "51822", "QFAB", "B0", 128), - NRF5_DEVICE_DEF(0x0040, "51822", "CEAA", "CA0", 256), - NRF5_DEVICE_DEF(0x0047, "51822", "CEAA", "DA0", 256), - NRF5_DEVICE_DEF(0x004D, "51822", "CEAA", "D00", 256), + NRF51_DEVICE_DEF(0x002A, "51822", "QFAA", "FA0", 256), + NRF51_DEVICE_DEF(0x0044, "51822", "QFAA", "GC0", 256), + NRF51_DEVICE_DEF(0x003C, "51822", "QFAA", "G0", 256), + NRF51_DEVICE_DEF(0x0057, "51822", "QFAA", "G2", 256), + NRF51_DEVICE_DEF(0x0058, "51822", "QFAA", "G3", 256), + NRF51_DEVICE_DEF(0x004C, "51822", "QFAB", "B0", 128), + NRF51_DEVICE_DEF(0x0040, "51822", "CEAA", "CA0", 256), + NRF51_DEVICE_DEF(0x0047, "51822", "CEAA", "DA0", 256), + NRF51_DEVICE_DEF(0x004D, "51822", "CEAA", "D00", 256), /* nRF51822 Devices (IC rev 3). */ - NRF5_DEVICE_DEF(0x0072, "51822", "QFAA", "H0", 256), - NRF5_DEVICE_DEF(0x00D1, "51822", "QFAA", "H2", 256), - NRF5_DEVICE_DEF(0x007B, "51822", "QFAB", "C0", 128), - NRF5_DEVICE_DEF(0x0083, "51822", "QFAC", "A0", 256), - NRF5_DEVICE_DEF(0x0084, "51822", "QFAC", "A1", 256), - NRF5_DEVICE_DEF(0x007D, "51822", "CDAB", "A0", 128), - NRF5_DEVICE_DEF(0x0079, "51822", "CEAA", "E0", 256), - NRF5_DEVICE_DEF(0x0087, "51822", "CFAC", "A0", 256), - NRF5_DEVICE_DEF(0x008F, "51822", "QFAA", "H1", 256), + NRF51_DEVICE_DEF(0x0072, "51822", "QFAA", "H0", 256), + NRF51_DEVICE_DEF(0x00D1, "51822", "QFAA", "H2", 256), + NRF51_DEVICE_DEF(0x007B, "51822", "QFAB", "C0", 128), + NRF51_DEVICE_DEF(0x0083, "51822", "QFAC", "A0", 256), + NRF51_DEVICE_DEF(0x0084, "51822", "QFAC", "A1", 256), + NRF51_DEVICE_DEF(0x007D, "51822", "CDAB", "A0", 128), + NRF51_DEVICE_DEF(0x0079, "51822", "CEAA", "E0", 256), + NRF51_DEVICE_DEF(0x0087, "51822", "CFAC", "A0", 256), + NRF51_DEVICE_DEF(0x008F, "51822", "QFAA", "H1", 256), /* nRF51422 Devices (IC rev 1). */ - NRF5_DEVICE_DEF(0x001E, "51422", "QFAA", "CA", 256), - NRF5_DEVICE_DEF(0x0024, "51422", "QFAA", "C0", 256), - NRF5_DEVICE_DEF(0x0031, "51422", "CEAA", "A0A", 256), + NRF51_DEVICE_DEF(0x001E, "51422", "QFAA", "CA", 256), + NRF51_DEVICE_DEF(0x0024, "51422", "QFAA", "C0", 256), + NRF51_DEVICE_DEF(0x0031, "51422", "CEAA", "A0A", 256), /* nRF51422 Devices (IC rev 2). */ - NRF5_DEVICE_DEF(0x002D, "51422", "QFAA", "DAA", 256), - NRF5_DEVICE_DEF(0x002E, "51422", "QFAA", "E0", 256), - NRF5_DEVICE_DEF(0x0061, "51422", "QFAB", "A00", 128), - NRF5_DEVICE_DEF(0x0050, "51422", "CEAA", "B0", 256), + NRF51_DEVICE_DEF(0x002D, "51422", "QFAA", "DAA", 256), + NRF51_DEVICE_DEF(0x002E, "51422", "QFAA", "E0", 256), + NRF51_DEVICE_DEF(0x0061, "51422", "QFAB", "A00", 128), + NRF51_DEVICE_DEF(0x0050, "51422", "CEAA", "B0", 256), /* nRF51422 Devices (IC rev 3). */ - NRF5_DEVICE_DEF(0x0073, "51422", "QFAA", "F0", 256), - NRF5_DEVICE_DEF(0x007C, "51422", "QFAB", "B0", 128), - NRF5_DEVICE_DEF(0x0085, "51422", "QFAC", "A0", 256), - NRF5_DEVICE_DEF(0x0086, "51422", "QFAC", "A1", 256), - NRF5_DEVICE_DEF(0x007E, "51422", "CDAB", "A0", 128), - NRF5_DEVICE_DEF(0x007A, "51422", "CEAA", "C0", 256), - NRF5_DEVICE_DEF(0x0088, "51422", "CFAC", "A0", 256), - - /* The driver fully autodects nRF52 series devices by FICR INFO, + NRF51_DEVICE_DEF(0x0073, "51422", "QFAA", "F0", 256), + NRF51_DEVICE_DEF(0x007C, "51422", "QFAB", "B0", 128), + NRF51_DEVICE_DEF(0x0085, "51422", "QFAC", "A0", 256), + NRF51_DEVICE_DEF(0x0086, "51422", "QFAC", "A1", 256), + NRF51_DEVICE_DEF(0x007E, "51422", "CDAB", "A0", 128), + NRF51_DEVICE_DEF(0x007A, "51422", "CEAA", "C0", 256), + NRF51_DEVICE_DEF(0x0088, "51422", "CFAC", "A0", 256), + + /* The driver fully autodetects nRF52 series devices by FICR INFO, * no need for nRF52xxx HWIDs in this table */ #if 0 /* nRF52810 Devices */ - NRF5_DEVICE_DEF(0x0142, "52810", "QFAA", "B0", 192), - NRF5_DEVICE_DEF(0x0143, "52810", "QCAA", "C0", 192), + NRF5_DEVICE_DEF(0x0142, "52810", "QFAA", "B0", 192, NRF5_FEATURE_SERIES_52 | NRF5_FEATURE_BPROT), + NRF5_DEVICE_DEF(0x0143, "52810", "QCAA", "C0", 192, NRF5_FEATURE_SERIES_52 | NRF5_FEATURE_BPROT), /* nRF52832 Devices */ - NRF5_DEVICE_DEF(0x00C7, "52832", "QFAA", "B0", 512), - NRF5_DEVICE_DEF(0x0139, "52832", "QFAA", "E0", 512), - NRF5_DEVICE_DEF(0x00E3, "52832", "CIAA", "B0", 512), + NRF5_DEVICE_DEF(0x00C7, "52832", "QFAA", "B0", 512, NRF5_FEATURE_SERIES_52 | NRF5_FEATURE_BPROT), + NRF5_DEVICE_DEF(0x0139, "52832", "QFAA", "E0", 512, NRF5_FEATURE_SERIES_52 | NRF5_FEATURE_BPROT), + NRF5_DEVICE_DEF(0x00E3, "52832", "CIAA", "B0", 512, NRF5_FEATURE_SERIES_52 | NRF5_FEATURE_BPROT), /* nRF52840 Devices */ - NRF5_DEVICE_DEF(0x0150, "52840", "QIAA", "C0", 1024), + NRF5_DEVICE_DEF(0x0150, "52840", "QIAA", "C0", 1024, NRF5_FEATURE_SERIES_52 | NRF5_FEATURE_ACL_PROT), #endif }; @@ -257,6 +287,8 @@ static const struct nrf5_device_package nrf5_packages_table[] = { { 0x2005, "CK" }, }; +const struct flash_driver nrf5_flash, nrf51_flash; + static int nrf5_bank_is_probed(struct flash_bank *bank) { struct nrf5_bank *nbank = bank->driver_priv; @@ -408,21 +440,16 @@ error: return ERROR_FAIL; } -static int nrf5_protect_check(struct flash_bank *bank) +static int nrf5_protect_check_clenr0(struct flash_bank *bank) { int res; uint32_t clenr0; - - /* UICR cannot be write protected so just return early */ - if (bank->base == NRF5_UICR_BASE) - return ERROR_OK; - struct nrf5_bank *nbank = bank->driver_priv; struct nrf5_info *chip = nbank->chip; assert(chip != NULL); - res = target_read_u32(chip->target, NRF5_FICR_CLENR0, + res = target_read_u32(chip->target, NRF51_FICR_CLENR0, &clenr0); if (res != ERROR_OK) { LOG_ERROR("Couldn't read code region 0 size[FICR]"); @@ -430,7 +457,7 @@ static int nrf5_protect_check(struct flash_bank *bank) } if (clenr0 == 0xFFFFFFFF) { - res = target_read_u32(chip->target, NRF5_UICR_CLENR0, + res = target_read_u32(chip->target, NRF51_UICR_CLENR0, &clenr0); if (res != ERROR_OK) { LOG_ERROR("Couldn't read code region 0 size[UICR]"); @@ -438,33 +465,75 @@ static int nrf5_protect_check(struct flash_bank *bank) } } - for (int i = 0; i < bank->num_sectors; i++) + for (unsigned int i = 0; i < bank->num_sectors; i++) bank->sectors[i].is_protected = clenr0 != 0xFFFFFFFF && bank->sectors[i].offset < clenr0; return ERROR_OK; } -static int nrf5_protect(struct flash_bank *bank, int set, int first, int last) +static int nrf5_protect_check_bprot(struct flash_bank *bank) { + struct nrf5_bank *nbank = bank->driver_priv; + struct nrf5_info *chip = nbank->chip; + + assert(chip != NULL); + + static uint32_t nrf5_bprot_offsets[4] = { 0x600, 0x604, 0x610, 0x614 }; + uint32_t bprot_reg = 0; int res; - uint32_t clenr0, ppfc; - struct nrf5_info *chip; - /* UICR cannot be write protected so just bail out early */ + for (unsigned int i = 0; i < bank->num_sectors; i++) { + unsigned int bit = i % 32; + if (bit == 0) { + unsigned int n_reg = i / 32; + if (n_reg >= ARRAY_SIZE(nrf5_bprot_offsets)) + break; + + res = target_read_u32(chip->target, NRF5_BPROT_BASE + nrf5_bprot_offsets[n_reg], &bprot_reg); + if (res != ERROR_OK) + return res; + } + bank->sectors[i].is_protected = (bprot_reg & (1 << bit)) ? 1 : 0; + } + return ERROR_OK; +} + +static int nrf5_protect_check(struct flash_bank *bank) +{ + /* UICR cannot be write protected so just return early */ if (bank->base == NRF5_UICR_BASE) - return ERROR_FAIL; + return ERROR_OK; - res = nrf5_get_probed_chip_if_halted(bank, &chip); - if (res != ERROR_OK) - return res; + struct nrf5_bank *nbank = bank->driver_priv; + struct nrf5_info *chip = nbank->chip; + + assert(chip != NULL); + + if (chip->features & NRF5_FEATURE_BPROT) + return nrf5_protect_check_bprot(bank); + + if (chip->features & NRF5_FEATURE_SERIES_51) + return nrf5_protect_check_clenr0(bank); + + LOG_WARNING("Flash protection of this nRF device is not supported"); + return ERROR_FLASH_OPER_UNSUPPORTED; +} + +static int nrf5_protect_clenr0(struct flash_bank *bank, int set, unsigned int first, + unsigned int last) +{ + int res; + uint32_t clenr0, ppfc; + struct nrf5_bank *nbank = bank->driver_priv; + struct nrf5_info *chip = nbank->chip; if (first != 0) { - LOG_ERROR("Code region 0 must start at the begining of the bank"); + LOG_ERROR("Code region 0 must start at the beginning of the bank"); return ERROR_FAIL; } - res = target_read_u32(chip->target, NRF5_FICR_PPFC, + res = target_read_u32(chip->target, NRF51_FICR_PPFC, &ppfc); if (res != ERROR_OK) { LOG_ERROR("Couldn't read PPFC register"); @@ -476,36 +545,74 @@ static int nrf5_protect(struct flash_bank *bank, int set, int first, int last) return ERROR_FAIL; } - res = target_read_u32(chip->target, NRF5_UICR_CLENR0, + res = target_read_u32(chip->target, NRF51_UICR_CLENR0, &clenr0); if (res != ERROR_OK) { - LOG_ERROR("Couldn't read code region 0 size[UICR]"); + LOG_ERROR("Couldn't read code region 0 size from UICR"); return res; } - if (clenr0 == 0xFFFFFFFF) { - res = target_write_u32(chip->target, NRF5_UICR_CLENR0, - clenr0); - if (res != ERROR_OK) { - LOG_ERROR("Couldn't write code region 0 size[UICR]"); - return res; - } - - } else { + if (!set || clenr0 != 0xFFFFFFFF) { LOG_ERROR("You need to perform chip erase before changing the protection settings"); + return ERROR_FAIL; } - nrf5_protect_check(bank); + res = nrf5_nvmc_write_enable(chip); + if (res != ERROR_OK) + goto error; - return ERROR_OK; + clenr0 = bank->sectors[last].offset + bank->sectors[last].size; + res = target_write_u32(chip->target, NRF51_UICR_CLENR0, clenr0); + + int res2 = nrf5_wait_for_nvmc(chip); + + if (res == ERROR_OK) + res = res2; + + if (res == ERROR_OK) + LOG_INFO("A reset or power cycle is required for the new protection settings to take effect."); + else + LOG_ERROR("Couldn't write code region 0 size to UICR"); + +error: + nrf5_nvmc_read_only(chip); + + return res; +} + +static int nrf5_protect(struct flash_bank *bank, int set, unsigned int first, + unsigned int last) +{ + int res; + struct nrf5_info *chip; + + /* UICR cannot be write protected so just bail out early */ + if (bank->base == NRF5_UICR_BASE) { + LOG_ERROR("UICR page does not support protection"); + return ERROR_FLASH_OPER_UNSUPPORTED; + } + + res = nrf5_get_probed_chip_if_halted(bank, &chip); + if (res != ERROR_OK) + return res; + + if (chip->features & NRF5_FEATURE_SERIES_51) + return nrf5_protect_clenr0(bank, set, first, last); + + LOG_ERROR("Flash protection setting is not supported on this nRF5 device"); + return ERROR_FLASH_OPER_UNSUPPORTED; } static bool nrf5_info_variant_to_str(uint32_t variant, char *bf) { - h_u32_to_be((uint8_t *)bf, variant); - bf[4] = '\0'; - if (isalnum(bf[0]) && isalnum(bf[1]) && isalnum(bf[2]) && isalnum(bf[3])) + uint8_t b[4]; + + h_u32_to_be(b, variant); + if (isalnum(b[0]) && isalnum(b[1]) && isalnum(b[2]) && isalnum(b[3])) { + memcpy(bf, b, 4); + bf[4] = 0; return true; + } strcpy(bf, "xxxx"); return false; @@ -524,29 +631,31 @@ static int nrf5_info(struct flash_bank *bank, char *buf, int buf_size) { struct nrf5_bank *nbank = bank->driver_priv; struct nrf5_info *chip = nbank->chip; + int res; if (chip->spec) { - snprintf(buf, buf_size, - "nRF%s-%s(build code: %s) %ukB Flash", - chip->spec->part, chip->spec->variant, chip->spec->build_code, - chip->flash_size_kb); + res = snprintf(buf, buf_size, + "nRF%s-%s(build code: %s)", + chip->spec->part, chip->spec->variant, chip->spec->build_code); } else if (chip->ficr_info_valid) { char variant[5]; nrf5_info_variant_to_str(chip->ficr_info.variant, variant); - snprintf(buf, buf_size, - "nRF%" PRIx32 "-%s%.2s(build code: %s) %" PRIu32 - "kB Flash, %" PRIu32 "kB RAM", + res = snprintf(buf, buf_size, + "nRF%" PRIx32 "-%s%.2s(build code: %s)", chip->ficr_info.part, nrf5_decode_info_package(chip->ficr_info.package), - variant, &variant[2], - chip->flash_size_kb, - chip->ficr_info.ram); + variant, &variant[2]); } else { - snprintf(buf, buf_size, "nRF51xxx (HWID 0x%04" PRIx16 ") %ukB Flash", - chip->hwid, chip->flash_size_kb); + res = snprintf(buf, buf_size, "nRF51xxx (HWID 0x%08" PRIx32 ")", + chip->hwid); } + if (res <= 0) + return ERROR_FAIL; + + snprintf(buf + res, buf_size - res, " %ukB Flash, %ukB RAM", + chip->flash_size_kb, chip->ram_size_kb); return ERROR_OK; } @@ -564,7 +673,27 @@ static int nrf5_read_ficr_info(struct nrf5_info *chip) } uint32_t series = chip->ficr_info.part & 0xfffff000; - if (!(series == 0x51000 || series == 0x52000)) { + switch (series) { + case 0x51000: + chip->features = NRF5_FEATURE_SERIES_51; + break; + + case 0x52000: + chip->features = NRF5_FEATURE_SERIES_52; + + switch (chip->ficr_info.part) { + case 0x52810: + case 0x52832: + chip->features |= NRF5_FEATURE_BPROT; + break; + + case 0x52840: + chip->features |= NRF5_FEATURE_ACL_PROT; + break; + } + break; + + default: LOG_DEBUG("FICR INFO likely not implemented. Invalid PART value 0x%08" PRIx32, chip->ficr_info.part); return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; @@ -596,6 +725,39 @@ static int nrf5_read_ficr_info(struct nrf5_info *chip) return ERROR_OK; } +static int nrf5_get_ram_size(struct target *target, uint32_t *ram_size) +{ + int res; + + *ram_size = 0; + + uint32_t numramblock; + res = target_read_u32(target, NRF51_FICR_NUMRAMBLOCK, &numramblock); + if (res != ERROR_OK) { + LOG_DEBUG("Couldn't read FICR NUMRAMBLOCK register"); + return res; + } + + if (numramblock < 1 || numramblock > 4) { + LOG_DEBUG("FICR NUMRAMBLOCK strange value %" PRIx32, numramblock); + return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; + } + + for (unsigned int i = 0; i < numramblock; i++) { + uint32_t sizeramblock; + res = target_read_u32(target, NRF51_FICR_SIZERAMBLOCK0 + sizeof(uint32_t)*i, &sizeramblock); + if (res != ERROR_OK) { + LOG_DEBUG("Couldn't read FICR NUMRAMBLOCK register"); + return res; + } + if (sizeramblock < 1024 || sizeramblock > 65536) + LOG_DEBUG("FICR SIZERAMBLOCK strange value %" PRIx32, sizeramblock); + else + *ram_size += sizeramblock; + } + return res; +} + static int nrf5_probe(struct flash_bank *bank) { int res; @@ -612,18 +774,22 @@ static int nrf5_probe(struct flash_bank *bank) chip->hwid &= 0xFFFF; /* HWID is stored in the lower two * bytes of the CONFIGID register */ + /* guess a nRF51 series if the device has no FICR INFO and we don't know HWID */ + chip->features = NRF5_FEATURE_SERIES_51; + + /* Don't bail out on error for the case that some old engineering + * sample has FICR INFO registers unreadable. We can proceed anyway. */ + (void)nrf5_read_ficr_info(chip); + chip->spec = NULL; for (size_t i = 0; i < ARRAY_SIZE(nrf5_known_devices_table); i++) { if (chip->hwid == nrf5_known_devices_table[i].hwid) { chip->spec = &nrf5_known_devices_table[i]; + chip->features = chip->spec->features; break; } } - /* Don't bail out on error for the case that some old engineering - * sample has FICR INFO registers unreadable. We can proceed anyway. */ - (void)nrf5_read_ficr_info(chip); - if (chip->spec && chip->ficr_info_valid) { /* check if HWID table gives the same part as FICR INFO */ if (chip->ficr_info.part != strtoul(chip->spec->part, NULL, 16)) @@ -631,6 +797,14 @@ static int nrf5_probe(struct flash_bank *bank) PRIx32, chip->hwid, chip->ficr_info.part); } + if (chip->ficr_info_valid) { + chip->ram_size_kb = chip->ficr_info.ram; + } else { + uint32_t ram_size; + nrf5_get_ram_size(target, &ram_size); + chip->ram_size_kb = ram_size / 1024; + } + /* The value stored in NRF5_FICR_CODEPAGESIZE is the number of bytes in one page of FLASH. */ uint32_t flash_page_size; res = target_read_u32(chip->target, NRF5_FICR_CODEPAGESIZE, @@ -661,48 +835,32 @@ static int nrf5_probe(struct flash_bank *bank) } } + free(bank->sectors); if (bank->base == NRF5_FLASH_BASE) { - bank->num_sectors = num_sectors; - bank->size = num_sectors * flash_page_size; - /* Sanity check */ if (chip->spec && chip->flash_size_kb != chip->spec->flash_size_kb) LOG_WARNING("Chip's reported Flash capacity does not match expected one"); if (chip->ficr_info_valid && chip->flash_size_kb != chip->ficr_info.flash) LOG_WARNING("Chip's reported Flash capacity does not match FICR INFO.FLASH"); - bank->sectors = calloc(bank->num_sectors, - sizeof((bank->sectors)[0])); - if (!bank->sectors) - return ERROR_FLASH_BANK_NOT_PROBED; - - /* Fill out the sector information: all NRF5 sectors are the same size and - * there is always a fixed number of them. */ - for (int i = 0; i < bank->num_sectors; i++) { - bank->sectors[i].size = flash_page_size; - bank->sectors[i].offset = i * flash_page_size; - - /* mark as unknown */ - bank->sectors[i].is_erased = -1; - bank->sectors[i].is_protected = -1; - } + bank->num_sectors = num_sectors; + bank->size = num_sectors * flash_page_size; - nrf5_protect_check(bank); + bank->sectors = alloc_block_array(0, flash_page_size, num_sectors); + if (!bank->sectors) + return ERROR_FAIL; chip->bank[0].probed = true; + } else { - bank->size = flash_page_size; bank->num_sectors = 1; - bank->sectors = calloc(bank->num_sectors, - sizeof((bank->sectors)[0])); - if (!bank->sectors) - return ERROR_FLASH_BANK_NOT_PROBED; + bank->size = flash_page_size; - bank->sectors[0].size = bank->size; - bank->sectors[0].offset = 0; + bank->sectors = alloc_block_array(0, flash_page_size, num_sectors); + if (!bank->sectors) + return ERROR_FAIL; - bank->sectors[0].is_erased = 0; bank->sectors[0].is_protected = 0; chip->bank[1].probed = true; @@ -738,29 +896,27 @@ static int nrf5_erase_page(struct flash_bank *bank, int res; LOG_DEBUG("Erasing page at 0x%"PRIx32, sector->offset); - if (sector->is_protected) { - LOG_ERROR("Cannot erase protected sector at 0x%" PRIx32, sector->offset); - return ERROR_FAIL; - } if (bank->base == NRF5_UICR_BASE) { - uint32_t ppfc; - res = target_read_u32(chip->target, NRF5_FICR_PPFC, + if (chip->features & NRF5_FEATURE_SERIES_51) { + uint32_t ppfc; + res = target_read_u32(chip->target, NRF51_FICR_PPFC, &ppfc); - if (res != ERROR_OK) { - LOG_ERROR("Couldn't read PPFC register"); - return res; - } - - if ((ppfc & 0xFF) == 0xFF) { - /* We can't erase the UICR. Double-check to - see if it's already erased before complaining. */ - default_flash_blank_check(bank); - if (sector->is_erased == 1) - return ERROR_OK; - - LOG_ERROR("The chip was not pre-programmed with SoftDevice stack and UICR cannot be erased separately. Please issue mass erase before trying to write to this region"); - return ERROR_FAIL; + if (res != ERROR_OK) { + LOG_ERROR("Couldn't read PPFC register"); + return res; + } + + if ((ppfc & 0xFF) == 0xFF) { + /* We can't erase the UICR. Double-check to + see if it's already erased before complaining. */ + default_flash_blank_check(bank); + if (sector->is_erased == 1) + return ERROR_OK; + + LOG_ERROR("The chip was not pre-programmed with SoftDevice stack and UICR cannot be erased separately. Please issue mass erase before trying to write to this region"); + return ERROR_FAIL; + } } res = nrf5_nvmc_generic_erase(chip, @@ -777,30 +933,6 @@ static int nrf5_erase_page(struct flash_bank *bank, return res; } -static const uint8_t nrf5_flash_write_code[] = { - /* See contrib/loaders/flash/cortex-m0.S */ -/* : */ - 0x0d, 0x68, /* ldr r5, [r1, #0] */ - 0x00, 0x2d, /* cmp r5, #0 */ - 0x0b, 0xd0, /* beq.n 1e */ - 0x4c, 0x68, /* ldr r4, [r1, #4] */ - 0xac, 0x42, /* cmp r4, r5 */ - 0xf9, 0xd0, /* beq.n 0 */ - 0x20, 0xcc, /* ldmia r4!, {r5} */ - 0x20, 0xc3, /* stmia r3!, {r5} */ - 0x94, 0x42, /* cmp r4, r2 */ - 0x01, 0xd3, /* bcc.n 18 */ - 0x0c, 0x46, /* mov r4, r1 */ - 0x08, 0x34, /* adds r4, #8 */ -/* : */ - 0x4c, 0x60, /* str r4, [r1, #4] */ - 0x04, 0x38, /* subs r0, #4 */ - 0xf0, 0xd1, /* bne.n 0 */ -/* : */ - 0x00, 0xbe /* bkpt 0x0000 */ -}; - - /* Start a low level flash write for the specified region */ static int nrf5_ll_flash_write(struct nrf5_info *chip, uint32_t address, const uint8_t *buffer, uint32_t bytes) { @@ -808,10 +940,14 @@ static int nrf5_ll_flash_write(struct nrf5_info *chip, uint32_t address, const u uint32_t buffer_size = 8192; struct working_area *write_algorithm; struct working_area *source; - struct reg_param reg_params[4]; + struct reg_param reg_params[6]; struct armv7m_algorithm armv7m_info; int retval = ERROR_OK; + static const uint8_t nrf5_flash_write_code[] = { +#include "../../../contrib/loaders/flash/nrf5/nrf5.inc" + }; + LOG_DEBUG("Writing buffer to flash address=0x%"PRIx32" bytes=0x%"PRIx32, address, bytes); assert(bytes % 4 == 0); @@ -862,15 +998,19 @@ static int nrf5_ll_flash_write(struct nrf5_info *chip, uint32_t address, const u init_reg_param(®_params[1], "r1", 32, PARAM_OUT); /* buffer start */ init_reg_param(®_params[2], "r2", 32, PARAM_OUT); /* buffer end */ init_reg_param(®_params[3], "r3", 32, PARAM_IN_OUT); /* target address */ + init_reg_param(®_params[4], "r6", 32, PARAM_OUT); /* watchdog refresh value */ + init_reg_param(®_params[5], "r7", 32, PARAM_OUT); /* watchdog refresh register address */ buf_set_u32(reg_params[0].value, 0, 32, bytes); buf_set_u32(reg_params[1].value, 0, 32, source->address); buf_set_u32(reg_params[2].value, 0, 32, source->address + source->size); buf_set_u32(reg_params[3].value, 0, 32, address); + buf_set_u32(reg_params[4].value, 0, 32, WATCHDOG_REFRESH_VALUE); + buf_set_u32(reg_params[5].value, 0, 32, WATCHDOG_REFRESH_REGISTER); retval = target_run_flash_async_algorithm(target, buffer, bytes/4, 4, 0, NULL, - 4, reg_params, + ARRAY_SIZE(reg_params), reg_params, source->address, source->size, write_algorithm->address, 0, &armv7m_info); @@ -882,6 +1022,8 @@ static int nrf5_ll_flash_write(struct nrf5_info *chip, uint32_t address, const u destroy_reg_param(®_params[1]); destroy_reg_param(®_params[2]); destroy_reg_param(®_params[3]); + destroy_reg_param(®_params[4]); + destroy_reg_param(®_params[5]); return retval; } @@ -898,6 +1040,34 @@ static int nrf5_write(struct flash_bank *bank, const uint8_t *buffer, assert(offset % 4 == 0); assert(count % 4 == 0); + /* UICR CLENR0 based protection used on nRF51 is somewhat clumsy: + * RM reads: Code running from code region 1 will not be able to write + * to code region 0. + * Unfortunately the flash loader running from RAM can write to both + * code regions whithout any hint the protection is violated. + * + * Update protection state and check if any flash sector to be written + * is protected. */ + if (chip->features & NRF5_FEATURE_SERIES_51) { + + res = nrf5_protect_check_clenr0(bank); + if (res != ERROR_OK) + return res; + + for (unsigned int sector = 0; sector < bank->num_sectors; sector++) { + struct flash_sector *bs = &bank->sectors[sector]; + + /* Start offset in or before this sector? */ + /* End offset in or behind this sector? */ + if ((offset < (bs->offset + bs->size)) + && ((offset + count - 1) >= bs->offset) + && bs->is_protected == 1) { + LOG_ERROR("Write refused, sector %d is protected", sector); + return ERROR_FLASH_PROTECTED; + } + } + } + res = nrf5_nvmc_write_enable(chip); if (res != ERROR_OK) goto error; @@ -914,7 +1084,8 @@ error: return res; } -static int nrf5_erase(struct flash_bank *bank, int first, int last) +static int nrf5_erase(struct flash_bank *bank, unsigned int first, + unsigned int last) { int res; struct nrf5_info *chip; @@ -923,11 +1094,36 @@ static int nrf5_erase(struct flash_bank *bank, int first, int last) if (res != ERROR_OK) return res; + /* UICR CLENR0 based protection used on nRF51 prevents erase + * absolutely silently. NVMC has no flag to indicate the protection + * was violated. + * + * Update protection state and check if any flash sector to be erased + * is protected. */ + if (chip->features & NRF5_FEATURE_SERIES_51) { + + res = nrf5_protect_check_clenr0(bank); + if (res != ERROR_OK) + return res; + } + /* For each sector to be erased */ - for (int s = first; s <= last && res == ERROR_OK; s++) + for (unsigned int s = first; s <= last && res == ERROR_OK; s++) { + + if (chip->features & NRF5_FEATURE_SERIES_51 + && bank->sectors[s].is_protected == 1) { + LOG_ERROR("Flash sector %d is protected", s); + return ERROR_FLASH_PROTECTED; + } + res = nrf5_erase_page(bank, chip, &bank->sectors[s]); + if (res != ERROR_OK) { + LOG_ERROR("Error erasing sector %d", s); + return res; + } + } - return res; + return ERROR_OK; } static void nrf5_free_driver_priv(struct flash_bank *bank) @@ -944,9 +1140,31 @@ static void nrf5_free_driver_priv(struct flash_bank *bank) } } +static struct nrf5_info *nrf5_get_chip(struct target *target) +{ + struct flash_bank *bank_iter; + + /* iterate over nrf5 banks of same target */ + for (bank_iter = flash_bank_list(); bank_iter; bank_iter = bank_iter->next) { + if (bank_iter->driver != &nrf5_flash && bank_iter->driver != &nrf51_flash) + continue; + + if (bank_iter->target != target) + continue; + + struct nrf5_bank *nbank = bank_iter->driver_priv; + if (!nbank) + continue; + + if (nbank->chip) + return nbank->chip; + } + return NULL; +} + FLASH_BANK_COMMAND_HANDLER(nrf5_flash_bank_command) { - static struct nrf5_info *chip; + struct nrf5_info *chip; struct nrf5_bank *nbank = NULL; switch (bank->base) { @@ -958,6 +1176,7 @@ FLASH_BANK_COMMAND_HANDLER(nrf5_flash_bank_command) return ERROR_FAIL; } + chip = nrf5_get_chip(bank->target); if (!chip) { /* Create a new chip */ chip = calloc(1, sizeof(*chip)); @@ -1004,39 +1223,33 @@ COMMAND_HANDLER(nrf5_handle_mass_erase_command) if (res != ERROR_OK) return res; - uint32_t ppfc; - - res = target_read_u32(target, NRF5_FICR_PPFC, + if (chip->features & NRF5_FEATURE_SERIES_51) { + uint32_t ppfc; + res = target_read_u32(target, NRF51_FICR_PPFC, &ppfc); - if (res != ERROR_OK) { - LOG_ERROR("Couldn't read PPFC register"); - return res; - } + if (res != ERROR_OK) { + LOG_ERROR("Couldn't read PPFC register"); + return res; + } - if ((ppfc & 0xFF) == 0x00) { - LOG_ERROR("Code region 0 size was pre-programmed at the factory, " - "mass erase command won't work."); - return ERROR_FAIL; + if ((ppfc & 0xFF) == 0x00) { + LOG_ERROR("Code region 0 size was pre-programmed at the factory, " + "mass erase command won't work."); + return ERROR_FAIL; + } } res = nrf5_erase_all(chip); - if (res != ERROR_OK) { - LOG_ERROR("Failed to erase the chip"); - nrf5_protect_check(bank); - return res; - } + if (res == ERROR_OK) { + LOG_INFO("Mass erase completed."); + if (chip->features & NRF5_FEATURE_SERIES_51) + LOG_INFO("A reset or power cycle is required if the flash was protected before."); - res = nrf5_protect_check(bank); - if (res != ERROR_OK) { - LOG_ERROR("Failed to check chip's write protection"); - return res; + } else { + LOG_ERROR("Failed to erase the chip"); } - res = get_flash_bank_by_addr(target, NRF5_UICR_BASE, true, &bank); - if (res != ERROR_OK) - return res; - - return ERROR_OK; + return res; } COMMAND_HANDLER(nrf5_handle_info_command) @@ -1063,13 +1276,13 @@ COMMAND_HANDLER(nrf5_handle_info_command) } ficr[] = { { .address = NRF5_FICR_CODEPAGESIZE }, { .address = NRF5_FICR_CODESIZE }, - { .address = NRF5_FICR_CLENR0 }, - { .address = NRF5_FICR_PPFC }, - { .address = NRF5_FICR_NUMRAMBLOCK }, - { .address = NRF5_FICR_SIZERAMBLOCK0 }, - { .address = NRF5_FICR_SIZERAMBLOCK1 }, - { .address = NRF5_FICR_SIZERAMBLOCK2 }, - { .address = NRF5_FICR_SIZERAMBLOCK3 }, + { .address = NRF51_FICR_CLENR0 }, + { .address = NRF51_FICR_PPFC }, + { .address = NRF51_FICR_NUMRAMBLOCK }, + { .address = NRF51_FICR_SIZERAMBLOCK0 }, + { .address = NRF51_FICR_SIZERAMBLOCK1 }, + { .address = NRF51_FICR_SIZERAMBLOCK2 }, + { .address = NRF51_FICR_SIZERAMBLOCK3 }, { .address = NRF5_FICR_CONFIGID }, { .address = NRF5_FICR_DEVICEID0 }, { .address = NRF5_FICR_DEVICEID1 }, @@ -1084,22 +1297,22 @@ COMMAND_HANDLER(nrf5_handle_info_command) { .address = NRF5_FICR_DEVICEADDRTYPE }, { .address = NRF5_FICR_DEVICEADDR0 }, { .address = NRF5_FICR_DEVICEADDR1 }, - { .address = NRF5_FICR_OVERRIDEN }, - { .address = NRF5_FICR_NRF_1MBIT0 }, - { .address = NRF5_FICR_NRF_1MBIT1 }, - { .address = NRF5_FICR_NRF_1MBIT2 }, - { .address = NRF5_FICR_NRF_1MBIT3 }, - { .address = NRF5_FICR_NRF_1MBIT4 }, - { .address = NRF5_FICR_BLE_1MBIT0 }, - { .address = NRF5_FICR_BLE_1MBIT1 }, - { .address = NRF5_FICR_BLE_1MBIT2 }, - { .address = NRF5_FICR_BLE_1MBIT3 }, - { .address = NRF5_FICR_BLE_1MBIT4 }, + { .address = NRF51_FICR_OVERRIDEN }, + { .address = NRF51_FICR_NRF_1MBIT0 }, + { .address = NRF51_FICR_NRF_1MBIT1 }, + { .address = NRF51_FICR_NRF_1MBIT2 }, + { .address = NRF51_FICR_NRF_1MBIT3 }, + { .address = NRF51_FICR_NRF_1MBIT4 }, + { .address = NRF51_FICR_BLE_1MBIT0 }, + { .address = NRF51_FICR_BLE_1MBIT1 }, + { .address = NRF51_FICR_BLE_1MBIT2 }, + { .address = NRF51_FICR_BLE_1MBIT3 }, + { .address = NRF51_FICR_BLE_1MBIT4 }, }, uicr[] = { - { .address = NRF5_UICR_CLENR0, }, - { .address = NRF5_UICR_RBPCONF }, - { .address = NRF5_UICR_XTALFREQ }, - { .address = NRF5_UICR_FWID }, + { .address = NRF51_UICR_CLENR0, }, + { .address = NRF51_UICR_RBPCONF }, + { .address = NRF51_UICR_XTALFREQ }, + { .address = NRF51_UICR_FWID }, }; for (size_t i = 0; i < ARRAY_SIZE(ficr); i++) { @@ -1224,7 +1437,7 @@ const struct flash_driver nrf5_flash = { }; /* We need to retain the flash-driver name as well as the commands - * for backwards compatability */ + * for backwards compatibility */ const struct flash_driver nrf51_flash = { .name = "nrf51", .commands = nrf5_command_handlers,