u-boot/board/freescale/imx8ulp_evk/spl.c
Clement Faure c72f1f2f0c imx: imx8ulp: release CAAM for the Cortex-A35
Release the CAAM for the A35 from the SPL.

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 17:33:57 +02:00

121 lines
2.3 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2021 NXP
*/
#include <common.h>
#include <init.h>
#include <spl.h>
#include <asm/io.h>
#include <errno.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx8ulp-pins.h>
#include <dm/uclass.h>
#include <dm/device.h>
#include <dm/uclass-internal.h>
#include <dm/device-internal.h>
#include <dm/lists.h>
#include <asm/arch/ddr.h>
#include <asm/arch/rdc.h>
#include <asm/arch/upower.h>
#include <asm/arch/s400_api.h>
DECLARE_GLOBAL_DATA_PTR;
void spl_dram_init(void)
{
/* Reboot in dual boot setting no need to init ddr again */
bool ddr_enable = pcc_clock_is_enable(5, LPDDR4_PCC5_SLOT);
if (!ddr_enable) {
init_clk_ddr();
ddr_init(&dram_timing);
} else {
/* reinit pfd/pfddiv and lpavnic except pll4*/
cgc2_pll4_init(false);
}
}
u32 spl_boot_device(void)
{
return BOOT_DEVICE_BOOTROM;
}
int power_init_board(void)
{
if (IS_ENABLED(CONFIG_IMX8ULP_LD_MODE)) {
/* Set buck3 to 0.9v LD */
upower_pmic_i2c_write(0x22, 0x18);
} else if (IS_ENABLED(CONFIG_IMX8ULP_ND_MODE)) {
/* Set buck3 to 1.0v ND */
upower_pmic_i2c_write(0x22, 0x20);
} else {
/* Set buck3 to 1.1v OD */
upower_pmic_i2c_write(0x22, 0x28);
}
return 0;
}
void spl_board_init(void)
{
struct udevice *dev;
u32 res;
int ret;
uclass_find_first_device(UCLASS_MISC, &dev);
for (; dev; uclass_find_next_device(&dev)) {
if (device_probe(dev))
continue;
}
board_early_init_f();
preloader_console_init();
puts("Normal Boot\n");
/* After AP set iomuxc0, the i2c can't work, Need M33 to set it now */
/* Load the lposc fuse to work around ROM issue. The fuse depends on S400 to read. */
if (is_soc_rev(CHIP_REV_1_0))
load_lposc_fuse();
upower_init();
power_init_board();
clock_init_late();
/* DDR initialization */
spl_dram_init();
/* This must place after upower init, so access to MDA and MRC are valid */
/* Init XRDC MDA */
xrdc_init_mda();
/* Init XRDC MRC for VIDEO, DSP domains */
xrdc_init_mrc();
/* Call it after PS16 power up */
set_lpav_qos();
/* Enable A35 access to the CAAM */
ret = ahab_release_caam(0x7, &res);
if (ret)
printf("ahab release caam failed %d, 0x%x\n", ret, res);
}
void board_init_f(ulong dummy)
{
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
timer_init();
arch_cpu_init();
board_init_r(NULL, 0);
}