mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 02:38:56 +00:00
93 lines
2.4 KiB
ArmAsm
93 lines
2.4 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright 2019 NXP
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#define ROM_API_TABLE_BASE_ADDR_LEGACY 0x180
|
|
#define ROM_VERSION_OFFSET 0x80
|
|
#define ROM_API_HWCNFG_SETUP_OFFSET 0x08
|
|
|
|
plugin_start:
|
|
|
|
push {r0-r4, lr}
|
|
|
|
imx7ulp_ddr_setting
|
|
imx7ulp_clock_gating
|
|
imx7ulp_qos_setting
|
|
|
|
normal_boot:
|
|
|
|
/*
|
|
* The following is to fill in those arguments for this ROM function
|
|
* pu_irom_hwcnfg_setup(void **start, size_t *bytes, const void *boot_data)
|
|
* This function is used to copy data from the storage media into DDR.
|
|
* start - Initial (possibly partial) image load address on entry.
|
|
* Final image load address on exit.
|
|
* bytes - Initial (possibly partial) image size on entry.
|
|
* Final image size on exit.
|
|
* boot_data - Initial @ref ivt Boot Data load address.
|
|
*/
|
|
adr r0, boot_data2
|
|
adr r1, image_len2
|
|
adr r2, boot_data2
|
|
|
|
/*
|
|
* check the _pu_irom_api_table for the address
|
|
*/
|
|
before_calling_rom___pu_irom_hwcnfg_setup:
|
|
ldr r3, =ROM_VERSION_OFFSET
|
|
ldr r4, [r3]
|
|
ldr r3, =ROM_API_TABLE_BASE_ADDR_LEGACY
|
|
ldr r4, [r3, #ROM_API_HWCNFG_SETUP_OFFSET]
|
|
blx r4
|
|
after_calling_rom___pu_irom_hwcnfg_setup:
|
|
|
|
/*
|
|
* To return to ROM from plugin, we need to fill in these argument.
|
|
* Here is what need to do:
|
|
* Need to construct the parameters for this function before return to ROM:
|
|
* plugin_download(void **start, size_t *bytes, UINT32 *ivt_offset)
|
|
*/
|
|
pop {r0-r4, lr}
|
|
push {r5}
|
|
ldr r5, boot_data2
|
|
str r5, [r0]
|
|
ldr r5, image_len2
|
|
str r5, [r1]
|
|
ldr r5, second_ivt_offset
|
|
str r5, [r2]
|
|
mov r0, #1
|
|
pop {r5}
|
|
|
|
/* return back to ROM code */
|
|
bx lr
|
|
|
|
/* make the following data right in the end of the output*/
|
|
.ltorg
|
|
|
|
#define FLASH_OFFSET 0x400
|
|
|
|
/*
|
|
* second_ivt_offset is the offset from the "second_ivt_header" to
|
|
* "image_copy_start", which involves FLASH_OFFSET, plus the first
|
|
* ivt_header, the plugin code size itself recorded by "ivt2_header"
|
|
*/
|
|
|
|
second_ivt_offset: .long (ivt2_header + 0x2C + FLASH_OFFSET)
|
|
|
|
/*
|
|
* The following is the second IVT header plus the second boot data
|
|
*/
|
|
ivt2_header: .long 0x0
|
|
app2_code_jump_v: .long 0x0
|
|
reserv3: .long 0x0
|
|
dcd2_ptr: .long 0x0
|
|
boot_data2_ptr: .long 0x0
|
|
self_ptr2: .long 0x0
|
|
app_code_csf2: .long 0x0
|
|
reserv4: .long 0x0
|
|
boot_data2: .long 0x0
|
|
image_len2: .long 0x0
|
|
plugin2: .long 0x0
|