From 10a3b24daf379162caf84fe757f849d7ba48c379 Mon Sep 17 00:00:00 2001 From: Andrea Merello Date: Wed, 1 Mar 2017 11:32:07 +0100 Subject: [PATCH] flash: efm32: add support for EFR-familty (e.g. bluegecko) This patch adds support for Blue Gecko and Mighty Gecko chips from Silabs. They have different EFM32_MSC_REGBASE and LOCK register offset. Based on the original patch from Andreas Kemnade. Change-Id: I166c14960ced7c880b68083badd1b31372fefabe Cc: Andreas Kemnade Signed-off-by: Andrea Merello Reviewed-on: http://openocd.zylin.com/4034 Reviewed-by: Jonas Norling Tested-by: jenkins Reviewed-by: Fredrik Hederstierna Reviewed-by: Spencer Oliver Reviewed-by: chrysn --- contrib/loaders/flash/efm32.S | 4 -- src/flash/nor/efm32.c | 99 +++++++++++++++++++++++++---------- 2 files changed, 71 insertions(+), 32 deletions(-) diff --git a/contrib/loaders/flash/efm32.S b/contrib/loaders/flash/efm32.S index 25d63010..c5de55c2 100644 --- a/contrib/loaders/flash/efm32.S +++ b/contrib/loaders/flash/efm32.S @@ -44,11 +44,7 @@ #define EFM32_MSC_ADDRB_OFFSET 0x010 #define EFM32_MSC_WDATA_OFFSET 0x018 #define EFM32_MSC_STATUS_OFFSET 0x01c -#define EFM32_MSC_LOCK_OFFSET 0x03c - /* unlock MSC */ - ldr r6, =#0x1b71 - str r6, [r0, #EFM32_MSC_LOCK_OFFSET] /* set WREN to 1 */ movs r6, #1 str r6, [r0, #EFM32_MSC_WRITECTRL_OFFSET] diff --git a/src/flash/nor/efm32.c b/src/flash/nor/efm32.c index 117cd8a1..b8453e1d 100644 --- a/src/flash/nor/efm32.c +++ b/src/flash/nor/efm32.c @@ -49,6 +49,8 @@ #define EZR_FAMILY_ID_WONDER_GECKO 120 #define EZR_FAMILY_ID_LEOPARD_GECKO 121 #define EZR_FAMILY_ID_HAPPY_GECKO 122 +#define EFR_FAMILY_ID_MIGHTY_GECKO 16 +#define EFR_FAMILY_ID_BLUE_GECKO 20 #define EFM32_FLASH_ERASE_TMO 100 #define EFM32_FLASH_WDATAREADY_TMO 100 @@ -72,27 +74,31 @@ #define EFM32_MSC_DI_PROD_REV (EFM32_MSC_DEV_INFO+0x1ff) #define EFM32_MSC_REGBASE 0x400c0000 -#define EFM32_MSC_WRITECTRL (EFM32_MSC_REGBASE+0x008) +#define EFR32_MSC_REGBASE 0x400e0000 +#define EFM32_MSC_REG_WRITECTRL 0x008 #define EFM32_MSC_WRITECTRL_WREN_MASK 0x1 -#define EFM32_MSC_WRITECMD (EFM32_MSC_REGBASE+0x00c) +#define EFM32_MSC_REG_WRITECMD 0x00c #define EFM32_MSC_WRITECMD_LADDRIM_MASK 0x1 #define EFM32_MSC_WRITECMD_ERASEPAGE_MASK 0x2 #define EFM32_MSC_WRITECMD_WRITEONCE_MASK 0x8 -#define EFM32_MSC_ADDRB (EFM32_MSC_REGBASE+0x010) -#define EFM32_MSC_WDATA (EFM32_MSC_REGBASE+0x018) -#define EFM32_MSC_STATUS (EFM32_MSC_REGBASE+0x01c) +#define EFM32_MSC_REG_ADDRB 0x010 +#define EFM32_MSC_REG_WDATA 0x018 +#define EFM32_MSC_REG_STATUS 0x01c #define EFM32_MSC_STATUS_BUSY_MASK 0x1 #define EFM32_MSC_STATUS_LOCKED_MASK 0x2 #define EFM32_MSC_STATUS_INVADDR_MASK 0x4 #define EFM32_MSC_STATUS_WDATAREADY_MASK 0x8 #define EFM32_MSC_STATUS_WORDTIMEOUT_MASK 0x10 #define EFM32_MSC_STATUS_ERASEABORTED_MASK 0x20 -#define EFM32_MSC_LOCK (EFM32_MSC_REGBASE+0x03c) +#define EFM32_MSC_REG_LOCK 0x03c +#define EFR32_MSC_REG_LOCK 0x040 #define EFM32_MSC_LOCK_LOCKKEY 0x1b71 struct efm32x_flash_bank { int probed; uint32_t lb_page[LOCKBITS_PAGE_SZ/4]; + uint32_t reg_base; + uint32_t reg_lock; }; struct efm32_info { @@ -132,11 +138,30 @@ static int efm32x_get_prod_rev(struct flash_bank *bank, uint8_t *prev) return target_read_u8(bank->target, EFM32_MSC_DI_PROD_REV, prev); } +static int efm32x_read_reg_u32(struct flash_bank *bank, target_addr_t offset, + uint32_t *value) +{ + struct efm32x_flash_bank *efm32x_info = bank->driver_priv; + uint32_t base = efm32x_info->reg_base; + + return target_read_u32(bank->target, base + offset, value); +} + +static int efm32x_write_reg_u32(struct flash_bank *bank, target_addr_t offset, + uint32_t value) +{ + struct efm32x_flash_bank *efm32x_info = bank->driver_priv; + uint32_t base = efm32x_info->reg_base; + + return target_write_u32(bank->target, base + offset, value); +} + static int efm32x_read_info(struct flash_bank *bank, struct efm32_info *efm32_info) { int ret; uint32_t cpuid = 0; + struct efm32x_flash_bank *efm32x_info = bank->driver_priv; memset(efm32_info, 0, sizeof(struct efm32_info)); @@ -175,6 +200,15 @@ static int efm32x_read_info(struct flash_bank *bank, if (ERROR_OK != ret) return ret; + if (EFR_FAMILY_ID_BLUE_GECKO == efm32_info->part_family || + EFR_FAMILY_ID_MIGHTY_GECKO == efm32_info->part_family) { + efm32x_info->reg_base = EFR32_MSC_REGBASE; + efm32x_info->reg_lock = EFR32_MSC_REG_LOCK; + } else { + efm32x_info->reg_base = EFM32_MSC_REGBASE; + efm32x_info->reg_lock = EFM32_MSC_REG_LOCK; + } + if (EFM_FAMILY_ID_GECKO == efm32_info->part_family || EFM_FAMILY_ID_TINY_GECKO == efm32_info->part_family) efm32_info->page_size = 512; @@ -208,7 +242,9 @@ static int efm32x_read_info(struct flash_bank *bank, } } else if (EFM_FAMILY_ID_WONDER_GECKO == efm32_info->part_family || EZR_FAMILY_ID_WONDER_GECKO == efm32_info->part_family || - EZR_FAMILY_ID_LEOPARD_GECKO == efm32_info->part_family) { + EZR_FAMILY_ID_LEOPARD_GECKO == efm32_info->part_family || + EFR_FAMILY_ID_BLUE_GECKO == efm32_info->part_family || + EFR_FAMILY_ID_MIGHTY_GECKO == efm32_info->part_family) { uint8_t pg_size = 0; ret = target_read_u8(bank->target, EFM32_MSC_DI_PAGE_SIZE, &pg_size); @@ -241,6 +277,10 @@ static int efm32x_decode_info(struct efm32_info *info, char *buf, int buf_size) case EZR_FAMILY_ID_HAPPY_GECKO: printed = snprintf(buf, buf_size, "EZR32 "); break; + case EFR_FAMILY_ID_MIGHTY_GECKO: + case EFR_FAMILY_ID_BLUE_GECKO: + printed = snprintf(buf, buf_size, "EFR32 "); + break; default: printed = snprintf(buf, buf_size, "EFM32 "); } @@ -276,6 +316,12 @@ static int efm32x_decode_info(struct efm32_info *info, char *buf, int buf_size) case EZR_FAMILY_ID_HAPPY_GECKO: printed = snprintf(buf, buf_size, "Happy Gecko"); break; + case EFR_FAMILY_ID_BLUE_GECKO: + printed = snprintf(buf, buf_size, "Blue Gecko"); + break; + case EFR_FAMILY_ID_MIGHTY_GECKO: + printed = snprintf(buf, buf_size, "Mighty Gecko"); + break; } buf += printed; @@ -319,7 +365,7 @@ static int efm32x_set_reg_bits(struct flash_bank *bank, uint32_t reg, int ret = 0; uint32_t reg_val = 0; - ret = target_read_u32(bank->target, reg, ®_val); + ret = efm32x_read_reg_u32(bank, reg, ®_val); if (ERROR_OK != ret) return ret; @@ -328,18 +374,19 @@ static int efm32x_set_reg_bits(struct flash_bank *bank, uint32_t reg, else reg_val &= ~bitmask; - return target_write_u32(bank->target, reg, reg_val); + return efm32x_write_reg_u32(bank, reg, reg_val); } static int efm32x_set_wren(struct flash_bank *bank, int write_enable) { - return efm32x_set_reg_bits(bank, EFM32_MSC_WRITECTRL, + return efm32x_set_reg_bits(bank, EFM32_MSC_REG_WRITECTRL, EFM32_MSC_WRITECTRL_WREN_MASK, write_enable); } static int efm32x_msc_lock(struct flash_bank *bank, int lock) { - return target_write_u32(bank->target, EFM32_MSC_LOCK, + struct efm32x_flash_bank *efm32x_info = bank->driver_priv; + return efm32x_write_reg_u32(bank, efm32x_info->reg_lock, (lock ? 0 : EFM32_MSC_LOCK_LOCKKEY)); } @@ -350,7 +397,7 @@ static int efm32x_wait_status(struct flash_bank *bank, int timeout, uint32_t status = 0; while (1) { - ret = target_read_u32(bank->target, EFM32_MSC_STATUS, &status); + ret = efm32x_read_reg_u32(bank, EFM32_MSC_REG_STATUS, &status); if (ERROR_OK != ret) break; @@ -389,16 +436,16 @@ static int efm32x_erase_page(struct flash_bank *bank, uint32_t addr) LOG_DEBUG("erasing flash page at 0x%08" PRIx32, addr); - ret = target_write_u32(bank->target, EFM32_MSC_ADDRB, addr); + ret = efm32x_write_reg_u32(bank, EFM32_MSC_REG_ADDRB, addr); if (ERROR_OK != ret) return ret; - ret = efm32x_set_reg_bits(bank, EFM32_MSC_WRITECMD, + ret = efm32x_set_reg_bits(bank, EFM32_MSC_REG_WRITECMD, EFM32_MSC_WRITECMD_LADDRIM_MASK, 1); if (ERROR_OK != ret) return ret; - ret = target_read_u32(bank->target, EFM32_MSC_STATUS, &status); + ret = efm32x_read_reg_u32(bank, EFM32_MSC_REG_STATUS, &status); if (ERROR_OK != ret) return ret; @@ -412,7 +459,7 @@ static int efm32x_erase_page(struct flash_bank *bank, uint32_t addr) return ERROR_FAIL; } - ret = efm32x_set_reg_bits(bank, EFM32_MSC_WRITECMD, + ret = efm32x_set_reg_bits(bank, EFM32_MSC_REG_WRITECMD, EFM32_MSC_WRITECMD_ERASEPAGE_MASK, 1); if (ERROR_OK != ret) return ret; @@ -589,6 +636,7 @@ static int efm32x_write_block(struct flash_bank *bank, const uint8_t *buf, uint32_t address = bank->base + offset; struct reg_param reg_params[5]; struct armv7m_algorithm armv7m_info; + struct efm32x_flash_bank *efm32x_info = bank->driver_priv; int ret = ERROR_OK; /* see contrib/loaders/flash/efm32.S for src */ @@ -598,10 +646,7 @@ static int efm32x_write_block(struct flash_bank *bank, const uint8_t *buf, /* #define EFM32_MSC_ADDRB_OFFSET 0x010 */ /* #define EFM32_MSC_WDATA_OFFSET 0x018 */ /* #define EFM32_MSC_STATUS_OFFSET 0x01c */ - /* #define EFM32_MSC_LOCK_OFFSET 0x03c */ - 0x15, 0x4e, /* ldr r6, =#0x1b71 */ - 0xc6, 0x63, /* str r6, [r0, #EFM32_MSC_LOCK_OFFSET] */ 0x01, 0x26, /* movs r6, #1 */ 0x86, 0x60, /* str r6, [r0, #EFM32_MSC_WRITECTRL_OFFSET] */ @@ -660,11 +705,9 @@ static int efm32x_write_block(struct flash_bank *bank, const uint8_t *buf, /* exit: */ 0x30, 0x46, /* mov r0, r6 */ 0x00, 0xbe, /* bkpt #0 */ - - /* LOCKKEY */ - 0x71, 0x1b, 0x00, 0x00 }; + /* flash write code */ if (target_alloc_working_area(target, sizeof(efm32x_flash_write_code), &write_algorithm) != ERROR_OK) { @@ -697,7 +740,7 @@ static int efm32x_write_block(struct flash_bank *bank, const uint8_t *buf, init_reg_param(®_params[3], "r3", 32, PARAM_OUT); /* buffer end */ init_reg_param(®_params[4], "r4", 32, PARAM_IN_OUT); /* target address */ - buf_set_u32(reg_params[0].value, 0, 32, EFM32_MSC_REGBASE); + buf_set_u32(reg_params[0].value, 0, 32, efm32x_info->reg_base); buf_set_u32(reg_params[1].value, 0, 32, count); buf_set_u32(reg_params[2].value, 0, 32, source->address); buf_set_u32(reg_params[3].value, 0, 32, source->address + source->size); @@ -762,16 +805,16 @@ static int efm32x_write_word(struct flash_bank *bank, uint32_t addr, /* if not called, GDB errors will be reported during large writes */ keep_alive(); - ret = target_write_u32(bank->target, EFM32_MSC_ADDRB, addr); + ret = efm32x_write_reg_u32(bank, EFM32_MSC_REG_ADDRB, addr); if (ERROR_OK != ret) return ret; - ret = efm32x_set_reg_bits(bank, EFM32_MSC_WRITECMD, + ret = efm32x_set_reg_bits(bank, EFM32_MSC_REG_WRITECMD, EFM32_MSC_WRITECMD_LADDRIM_MASK, 1); if (ERROR_OK != ret) return ret; - ret = target_read_u32(bank->target, EFM32_MSC_STATUS, &status); + ret = efm32x_read_reg_u32(bank, EFM32_MSC_REG_STATUS, &status); if (ERROR_OK != ret) return ret; @@ -792,13 +835,13 @@ static int efm32x_write_word(struct flash_bank *bank, uint32_t addr, return ret; } - ret = target_write_u32(bank->target, EFM32_MSC_WDATA, val); + ret = efm32x_write_reg_u32(bank, EFM32_MSC_REG_WDATA, val); if (ERROR_OK != ret) { LOG_ERROR("WDATA write failed"); return ret; } - ret = target_write_u32(bank->target, EFM32_MSC_WRITECMD, + ret = efm32x_write_reg_u32(bank, EFM32_MSC_REG_WRITECMD, EFM32_MSC_WRITECMD_WRITEONCE_MASK); if (ERROR_OK != ret) { LOG_ERROR("WRITECMD write failed"); -- 2.39.5