michaelh/zephyr
1
0
Fork 0
Code Releases Activity

soc: nxp_imx: Add support for external xip flash boot header

Browse source 
Adds support for the boot data, image vector table, and FlexSPI NOR
config structures used by the imx rt boot ROM to boot an application
from an external xip flash device.

It is now possible to build and flash a bootable zephyr image to the
external xip flash on the mimxrt1020_evk, mimxrt1050_evk, and
mimxrt1060_evk boards via the 'ninja flash' build target and jlink
runner. Note, however, that the default board configurations still link
code into internal ITCM, therefore you must set CONFIG_CODE_HYPERFLASH=y
or CONFIG_CODE_QSPI=y explicitly to override the default. You must also
set CONFIG_NXP_IMX_RT_BOOT_HEADER=y to build the boot header into the
image.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
This commit is contained in:
Maureen Helm 2018-12-27 08:09:53 -06:00 • committed by Kumar Gala
commit 8e3004953d
11 changed files with 110 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

21
soc/arm/nxp_imx/rt/soc.c
View file

@ -12,6 +12,7 @@
#include <fsl_clock.h>
#include <arch/cpu.h>
#include <cortex_m/exc.h>
#include <fsl_flexspi_nor_boot.h>
#ifdef CONFIG_INIT_ARM_PLL
/* ARM PLL configuration for RUN mode */
@ -47,6 +48,26 @@ const clock_enet_pll_config_t ethPllConfig = {
};
#endif
#ifdef CONFIG_NXP_IMX_RT_BOOT_HEADER
const __imx_boot_data_section BOOT_DATA_T boot_data = {
.start = CONFIG_FLASH_BASE_ADDRESS,
.size = CONFIG_FLASH_SIZE,
.plugin = PLUGIN_FLAG,
.placeholder = 0xFFFFFFFF,
};
const __imx_boot_ivt_section ivt image_vector_table = {
.hdr = IVT_HEADER,
.entry = CONFIG_FLASH_BASE_ADDRESS + CONFIG_TEXT_SECTION_OFFSET,
.reserved1 = IVT_RSVD,
.dcd = (uint32_t) NULL,
.boot_data = (uint32_t) &boot_data,
.self = (uint32_t) &image_vector_table,
.csf = (uint32_t)CSF_ADDRESS,
.reserved2 = IVT_RSVD,
};
#endif
/**
*
* @brief Initialize the system clock