mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 08:57:58 +00:00
77c3b9cc98
Support print cpu info. the clock function has not been added, it will be added in following patches. Signed-off-by: Peng Fan <peng.fan@nxp.com>
69 lines
1.2 KiB
C
69 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2021 NXP
|
|
*/
|
|
|
|
#include <asm/io.h>
|
|
#include <asm/arch/clock.h>
|
|
#include <asm/arch/imx-regs.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
#include <asm/mach-imx/boot_mode.h>
|
|
|
|
u32 get_cpu_rev(void)
|
|
{
|
|
return (MXC_CPU_IMX8ULP << 12) | CHIP_REV_1_0;
|
|
}
|
|
|
|
enum bt_mode get_boot_mode(void)
|
|
{
|
|
u32 bt0_cfg = 0;
|
|
|
|
bt0_cfg = readl(CMC0_RBASE + 0x80);
|
|
bt0_cfg &= (BT0CFG_LPBOOT_MASK | BT0CFG_DUALBOOT_MASK);
|
|
|
|
if (!(bt0_cfg & BT0CFG_LPBOOT_MASK)) {
|
|
/* No low power boot */
|
|
if (bt0_cfg & BT0CFG_DUALBOOT_MASK)
|
|
return DUAL_BOOT;
|
|
else
|
|
return SINGLE_BOOT;
|
|
}
|
|
|
|
return LOW_POWER_BOOT;
|
|
}
|
|
|
|
#if defined(CONFIG_DISPLAY_CPUINFO)
|
|
const char *get_imx_type(u32 imxtype)
|
|
{
|
|
return "8ULP";
|
|
}
|
|
|
|
int print_cpuinfo(void)
|
|
{
|
|
u32 cpurev;
|
|
char cause[18];
|
|
|
|
cpurev = get_cpu_rev();
|
|
|
|
printf("CPU: Freescale i.MX%s rev%d.%d at %d MHz\n",
|
|
get_imx_type((cpurev & 0xFF000) >> 12),
|
|
(cpurev & 0x000F0) >> 4, (cpurev & 0x0000F) >> 0,
|
|
mxc_get_clock(MXC_ARM_CLK) / 1000000);
|
|
|
|
printf("Boot mode: ");
|
|
switch (get_boot_mode()) {
|
|
case LOW_POWER_BOOT:
|
|
printf("Low power boot\n");
|
|
break;
|
|
case DUAL_BOOT:
|
|
printf("Dual boot\n");
|
|
break;
|
|
case SINGLE_BOOT:
|
|
default:
|
|
printf("Single boot\n");
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|