efm32: fix FTBFS on ARM due to alignment issues

[openocd.git] / src / flash / nor / efm32.c

diff --git a/src/flash/nor/efm32.c b/src/flash/nor/efm32.c
index 57566499908e54d74c7946ca136e5e8e7838e2bd..d5f0559be5b5ff477f65d455c6852c8288f4a415 100644 (file)
--- a/src/flash/nor/efm32.c
+++ b/src/flash/nor/efm32.c
@@ -85,7 +85,7 @@
 
 struct efm32x_flash_bank {
        int probed;
-       uint8_t lb_page[LOCKBITS_PAGE_SZ];
+       uint32_t lb_page[LOCKBITS_PAGE_SZ/4];
 };
 
 struct efm32_info {
@@ -169,14 +169,22 @@ static int efm32x_read_info(struct flash_bank *bank,
                efm32_info->page_size = 512;
        else if (EFM_FAMILY_ID_GIANT_GECKO == efm32_info->part_family ||
                        EFM_FAMILY_ID_LEOPARD_GECKO == efm32_info->part_family) {
-               uint8_t pg_size = 0;
-
-               ret = target_read_u8(bank->target, EFM32_MSC_DI_PAGE_SIZE,
-                       &pg_size);
-               if (ERROR_OK != ret)
-                       return ret;
-
-               efm32_info->page_size = (1 << ((pg_size+10) & 0xff));
+               if (efm32_info->prod_rev >= 18) {
+                       uint8_t pg_size = 0;
+                       ret = target_read_u8(bank->target, EFM32_MSC_DI_PAGE_SIZE,
+                               &pg_size);
+                       if (ERROR_OK != ret)
+                               return ret;
+
+                       efm32_info->page_size = (1 << ((pg_size+10) & 0xff));
+               } else {
+                       /* EFM32 GG/LG errata: MEM_INFO_PAGE_SIZE is invalid
+                          for MCUs with PROD_REV < 18 */
+                       if (efm32_info->flash_sz_kib < 512)
+                               efm32_info->page_size = 2048;
+                       else
+                               efm32_info->page_size = 4096;
+               }
 
                if ((2048 != efm32_info->page_size) &&
                                (4096 != efm32_info->page_size)) {
@@ -362,7 +370,7 @@ static int efm32x_read_lock_data(struct flash_bank *bank)
        data_size = bank->num_sectors / 8; /* number of data bytes */
        data_size /= 4; /* ...and data dwords */
 
-       ptr = (uint32_t *)efm32x_info->lb_page;
+       ptr = efm32x_info->lb_page;
 
        for (i = 0; i < data_size; i++, ptr++) {
                ret = target_read_u32(target, EFM32_MSC_LOCK_BITS+i*4, ptr);
@@ -375,7 +383,7 @@ static int efm32x_read_lock_data(struct flash_bank *bank)
        /* also, read ULW, DLW and MLW */
 
        /* ULW, word 126 */
-       ptr = ((uint32_t *)efm32x_info->lb_page) + 126;
+       ptr = efm32x_info->lb_page + 126;
        ret = target_read_u32(target, EFM32_MSC_LOCK_BITS+126*4, ptr);
        if (ERROR_OK != ret) {
                LOG_ERROR("Failed to read ULW");
@@ -383,7 +391,7 @@ static int efm32x_read_lock_data(struct flash_bank *bank)
        }
 
        /* DLW, word 127 */
-       ptr = ((uint32_t *)efm32x_info->lb_page) + 127;
+       ptr = efm32x_info->lb_page + 127;
        ret = target_read_u32(target, EFM32_MSC_LOCK_BITS+127*4, ptr);
        if (ERROR_OK != ret) {
                LOG_ERROR("Failed to read DLW");
@@ -391,7 +399,7 @@ static int efm32x_read_lock_data(struct flash_bank *bank)
        }
 
        /* MLW, word 125, present in GG and LG */
-       ptr = ((uint32_t *)efm32x_info->lb_page) + 125;
+       ptr = efm32x_info->lb_page + 125;
        ret = target_read_u32(target, EFM32_MSC_LOCK_BITS+125*4, ptr);
        if (ERROR_OK != ret) {
                LOG_ERROR("Failed to read MLW");
@@ -412,14 +420,14 @@ static int efm32x_write_lock_data(struct flash_bank *bank)
                return ret;
        }
 
-       return efm32x_write(bank, efm32x_info->lb_page, EFM32_MSC_LOCK_BITS,
+       return efm32x_write(bank, (uint8_t *)efm32x_info->lb_page, EFM32_MSC_LOCK_BITS,
                LOCKBITS_PAGE_SZ);
 }
 
 static int efm32x_get_page_lock(struct flash_bank *bank, size_t page)
 {
        struct efm32x_flash_bank *efm32x_info = bank->driver_priv;
-       uint32_t dw = ((uint32_t *)efm32x_info->lb_page)[page >> 5];
+       uint32_t dw = efm32x_info->lb_page[page >> 5];
        uint32_t mask = 0;
 
        mask = 1 << (page & 0x1f);
@@ -430,7 +438,7 @@ static int efm32x_get_page_lock(struct flash_bank *bank, size_t page)
 static int efm32x_set_page_lock(struct flash_bank *bank, size_t page, int set)
 {
        struct efm32x_flash_bank *efm32x_info = bank->driver_priv;
-       uint32_t *dw = &((uint32_t *)efm32x_info->lb_page)[page >> 5];
+       uint32_t *dw = &efm32x_info->lb_page[page >> 5];
        uint32_t mask = 0;
 
        mask = 1 << (page & 0x1f);
@@ -602,7 +610,7 @@ static int efm32x_write_block(struct flash_bank *bank, uint8_t *buf,
        buf_set_u32(reg_params[4].value, 0, 32, address);
 
        armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
-       armv7m_info.core_mode = ARMV7M_MODE_ANY;
+       armv7m_info.core_mode = ARM_MODE_THREAD;
 
        ret = target_run_flash_async_algorithm(target, buf, count, 4,
                        0, NULL,