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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 <andreas@kemnade.info>
Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Reviewed-on: http://openocd.zylin.com/4034
Reviewed-by: Jonas Norling <jonas.norling@cyanconnode.com>
Tested-by: jenkins
Reviewed-by: Fredrik Hederstierna <fredrik@hederstierna.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-by: chrysn <chrysn@fsfe.org>
This commit is contained in:
Andrea Merello 2017-03-01 11:32:07 +01:00 committed by Spencer Oliver
parent f95f8b70fb
commit 10a3b24daf
2 changed files with 71 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
contrib/loaders/flash/efm32.S
View File

@ -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]

99
src/flash/nor/efm32.c
View File

@ -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, &reg_val);
ret = efm32x_read_reg_u32(bank, reg, &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(&reg_params[3], "r3", 32, PARAM_OUT); /* buffer end */
init_reg_param(&reg_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");