OrgZephyr/mcuboot
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mcuboot
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boot: zephyr: enable ram load for ARM 

Enable ram loading for ARM, with correct handling of vector table when
code has moved to RAM.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
This commit is contained in:
Daniel DeGrasse 2022-09-01 15:47:01 -05:00 committed by David Brown
parent 9324d2b896
commit e45744449b
1 changed files with 9 additions and 2 deletions
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11
boot/zephyr/main.c
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@ -168,20 +168,27 @@ struct arm_vector_table {
static void do_boot(struct boot_rsp *rsp)
{
struct arm_vector_table *vt;
uintptr_t flash_base;
int rc;
/* The beginning of the image is the ARM vector table, containing
* the initial stack pointer address and the reset vector
* consecutively. Manually set the stack pointer and jump into the
* reset vector
*/
#ifdef CONFIG_BOOT_RAM_LOAD
/* Get ram address for image */
vt = (struct arm_vector_table *)(rsp->br_hdr->ih_load_addr + rsp->br_hdr->ih_hdr_size);
#else
uintptr_t flash_base;
int rc;
/* Jump to flash image */
rc = flash_device_base(rsp->br_flash_dev_id, &flash_base);
assert(rc == 0);
vt = (struct arm_vector_table *)(flash_base +
rsp->br_image_off +
rsp->br_hdr->ih_hdr_size);
#endif
sys_clock_disable();