[PATCH V2 23/30] imx: imx8: bootaux: Add i.MX8 M4 boot support
Peng Fan (OSS)
peng.fan at oss.nxp.com
Thu Jun 15 12:09:20 CEST 2023
From: Ye Li <ye.li at nxp.com>
1. Implement bootaux for the M4 boot on i.MX8QM and QXP. Users need to download
M4 image to any DDR address first. Then use the
"bootaux <M4 download DDR address> [M4 core id]" to boot CM4_0
or CM4_1, the default core id is 0 for CM4_0.
Since current M4 only supports running in TCM. The bootaux will copy
the M4 image from DDR to its TCML.
2. Implment bootaux for HIFI on QXP
command: bootaux 0x81000000 1
Signed-off-by: Ye Li <ye.li at nxp.com>
Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
arch/arm/include/asm/mach-imx/sys_proto.h | 1 +
arch/arm/mach-imx/Kconfig | 2 +-
arch/arm/mach-imx/Makefile | 5 +
arch/arm/mach-imx/imx8/cpu.c | 174 ++++++++++++++++++++++
arch/arm/mach-imx/imx_bootaux.c | 15 +-
5 files changed, 192 insertions(+), 5 deletions(-)
diff --git a/arch/arm/include/asm/mach-imx/sys_proto.h b/arch/arm/include/asm/mach-imx/sys_proto.h
index 85d9ca60b14..31ae179b211 100644
--- a/arch/arm/include/asm/mach-imx/sys_proto.h
+++ b/arch/arm/include/asm/mach-imx/sys_proto.h
@@ -236,6 +236,7 @@ void board_mem_get_layout(u64 *phys_sdram_1_start,
u64 *phys_sdram_2_start,
u64 *phys_sdram_2_size);
+int arch_auxiliary_core_up(u32 core_id, ulong boot_private_data);
int arch_auxiliary_core_check_up(u32 core_id);
int board_mmc_get_env_dev(int devno);
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 2cca89d4bb1..d94b5828d0d 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -31,7 +31,7 @@ config IMX_RDC
config IMX_BOOTAUX
bool "Support boot auxiliary core"
- depends on ARCH_MX7 || ARCH_MX6 || ARCH_VF610 || ARCH_IMX8M
+ depends on ARCH_MX7 || ARCH_MX6 || ARCH_VF610 || ARCH_IMX8 || ARCH_IMX8M
help
bootaux [addr] to boot auxiliary core.
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 906f538259a..9023b99f21d 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -66,6 +66,11 @@ ifeq ($(SOC),$(filter $(SOC),vf610))
obj-y += ddrmc-vf610.o
obj-$(CONFIG_DDRMC_VF610_CALIBRATION) += ddrmc-vf610-calibration.o
endif
+ifeq ($(SOC),$(filter $(SOC),imx8))
+ifneq ($(CONFIG_SPL_BUILD),y)
+obj-$(CONFIG_IMX_BOOTAUX) += imx_bootaux.o
+endif
+endif
ifneq ($(CONFIG_SPL_BUILD),y)
obj-$(CONFIG_CMD_BMODE) += cmd_bmode.o
obj-$(CONFIG_CMD_HDMIDETECT) += cmd_hdmidet.o
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c
index 2b34077438f..c62357044e0 100644
--- a/arch/arm/mach-imx/imx8/cpu.c
+++ b/arch/arm/mach-imx/imx8/cpu.c
@@ -26,6 +26,8 @@
#include <asm/armv8/mmu.h>
#include <asm/setup.h>
#include <asm/mach-imx/boot_mode.h>
+#include <power-domain.h>
+#include <elf.h>
#include <spl.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -107,6 +109,178 @@ int arch_misc_init(void)
}
#endif
+#ifdef CONFIG_IMX_BOOTAUX
+
+#ifdef CONFIG_IMX8QM
+int arch_auxiliary_core_up(u32 core_id, ulong boot_private_data)
+{
+ sc_rsrc_t core_rsrc, mu_rsrc;
+ sc_faddr_t tcml_addr;
+ u32 tcml_size = SZ_128K;
+ ulong addr;
+
+ switch (core_id) {
+ case 0:
+ core_rsrc = SC_R_M4_0_PID0;
+ tcml_addr = 0x34FE0000;
+ mu_rsrc = SC_R_M4_0_MU_1A;
+ break;
+ case 1:
+ core_rsrc = SC_R_M4_1_PID0;
+ tcml_addr = 0x38FE0000;
+ mu_rsrc = SC_R_M4_1_MU_1A;
+ break;
+ default:
+ printf("Not support this core boot up, ID:%u\n", core_id);
+ return -EINVAL;
+ }
+
+ addr = (sc_faddr_t)boot_private_data;
+
+ if (addr >= tcml_addr && addr <= tcml_addr + tcml_size) {
+ printf("Wrong image address 0x%lx, should not in TCML\n",
+ addr);
+ return -EINVAL;
+ }
+
+ printf("Power on M4 and MU\n");
+
+ if (sc_pm_set_resource_power_mode(-1, core_rsrc, SC_PM_PW_MODE_ON) != SC_ERR_NONE)
+ return -EIO;
+
+ if (sc_pm_set_resource_power_mode(-1, mu_rsrc, SC_PM_PW_MODE_ON) != SC_ERR_NONE)
+ return -EIO;
+
+ printf("Copy M4 image from 0x%lx to TCML 0x%lx\n", addr, (ulong)tcml_addr);
+
+ if (addr != tcml_addr)
+ memcpy((void *)tcml_addr, (void *)addr, tcml_size);
+
+ printf("Start M4 %u\n", core_id);
+ if (sc_pm_cpu_start(-1, core_rsrc, true, tcml_addr) != SC_ERR_NONE)
+ return -EIO;
+
+ printf("bootaux complete\n");
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_IMX8QXP
+int arch_auxiliary_core_up(u32 core_id, ulong boot_private_data)
+{
+ sc_rsrc_t core_rsrc, mu_rsrc = SC_R_NONE;
+ sc_faddr_t aux_core_ram;
+ u32 size;
+ ulong addr;
+
+ switch (core_id) {
+ case 0:
+ core_rsrc = SC_R_M4_0_PID0;
+ aux_core_ram = 0x34FE0000;
+ mu_rsrc = SC_R_M4_0_MU_1A;
+ size = SZ_128K;
+ break;
+ case 1:
+ core_rsrc = SC_R_DSP;
+ aux_core_ram = 0x596f8000;
+ size = SZ_2K;
+ break;
+ default:
+ printf("Not support this core boot up, ID:%u\n", core_id);
+ return -EINVAL;
+ }
+
+ addr = (sc_faddr_t)boot_private_data;
+
+ if (addr >= aux_core_ram && addr <= aux_core_ram + size) {
+ printf("Wrong image address 0x%lx, should not in aux core ram\n",
+ addr);
+ return -EINVAL;
+ }
+
+ printf("Power on aux core %d\n", core_id);
+
+ if (sc_pm_set_resource_power_mode(-1, core_rsrc, SC_PM_PW_MODE_ON) != SC_ERR_NONE)
+ return -EIO;
+
+ if (mu_rsrc != SC_R_NONE) {
+ if (sc_pm_set_resource_power_mode(-1, mu_rsrc, SC_PM_PW_MODE_ON) != SC_ERR_NONE)
+ return -EIO;
+ }
+
+ if (core_id == 1) {
+ struct power_domain pd;
+
+ if (sc_pm_clock_enable(-1, core_rsrc, SC_PM_CLK_PER, true, false) != SC_ERR_NONE) {
+ printf("Error enable clock\n");
+ return -EIO;
+ }
+
+ if (!power_domain_lookup_name("audio_sai0", &pd)) {
+ if (power_domain_on(&pd)) {
+ printf("Error power on SAI0\n");
+ return -EIO;
+ }
+ }
+
+ if (!power_domain_lookup_name("audio_ocram", &pd)) {
+ if (power_domain_on(&pd)) {
+ printf("Error power on HIFI RAM\n");
+ return -EIO;
+ }
+ }
+ }
+
+ printf("Copy image from 0x%lx to 0x%lx\n", addr, (ulong)aux_core_ram);
+ if (core_id == 0) {
+ /* M4 use bin file */
+ memcpy((void *)aux_core_ram, (void *)addr, size);
+ } else {
+ /* HIFI use elf file */
+ if (!valid_elf_image(addr))
+ return -1;
+ addr = load_elf_image_shdr(addr);
+ }
+
+ printf("Start %s\n", core_id == 0 ? "M4" : "HIFI");
+
+ if (sc_pm_cpu_start(-1, core_rsrc, true, aux_core_ram) != SC_ERR_NONE)
+ return -EIO;
+
+ printf("bootaux complete\n");
+ return 0;
+}
+#endif
+
+int arch_auxiliary_core_check_up(u32 core_id)
+{
+ sc_rsrc_t core_rsrc;
+ sc_pm_power_mode_t power_mode;
+
+ switch (core_id) {
+ case 0:
+ core_rsrc = SC_R_M4_0_PID0;
+ break;
+#ifdef CONFIG_IMX8QM
+ case 1:
+ core_rsrc = SC_R_M4_1_PID0;
+ break;
+#endif
+ default:
+ printf("Not support this core, ID:%u\n", core_id);
+ return 0;
+ }
+
+ if (sc_pm_get_resource_power_mode(-1, core_rsrc, &power_mode) != SC_ERR_NONE)
+ return 0;
+
+ if (power_mode != SC_PM_PW_MODE_OFF)
+ return 1;
+
+ return 0;
+}
+#endif
+
int print_bootinfo(void)
{
enum boot_device bt_dev = get_boot_device();
diff --git a/arch/arm/mach-imx/imx_bootaux.c b/arch/arm/mach-imx/imx_bootaux.c
index ab7a41fd11d..f7b14ca38d9 100644
--- a/arch/arm/mach-imx/imx_bootaux.c
+++ b/arch/arm/mach-imx/imx_bootaux.c
@@ -14,6 +14,7 @@
#include <linux/compiler.h>
#include <cpu_func.h>
+#ifndef CONFIG_IMX8
/* Just to avoid build error */
#if IS_ENABLED(CONFIG_IMX8M)
#define SRC_M4C_NON_SCLR_RST_MASK BIT(0)
@@ -158,7 +159,7 @@ int arch_auxiliary_core_check_up(u32 core_id)
return 1;
}
-
+#endif
/*
* To i.MX6SX and i.MX7D, the image supported by bootaux needs
* the reset vector at the head for the image, with SP and PC
@@ -177,11 +178,15 @@ static int do_bootaux(struct cmd_tbl *cmdtp, int flag, int argc,
{
ulong addr;
int ret, up;
+ u32 core = 0;
if (argc < 2)
return CMD_RET_USAGE;
- up = arch_auxiliary_core_check_up(0);
+ if (argc > 2)
+ core = simple_strtoul(argv[2], NULL, 10);
+
+ up = arch_auxiliary_core_check_up(core);
if (up) {
printf("## Auxiliary core is already up\n");
return CMD_RET_SUCCESS;
@@ -192,7 +197,7 @@ static int do_bootaux(struct cmd_tbl *cmdtp, int flag, int argc,
if (!addr)
return CMD_RET_FAILURE;
- ret = arch_auxiliary_core_up(0, addr);
+ ret = arch_auxiliary_core_up(core, addr);
if (ret)
return CMD_RET_FAILURE;
@@ -202,5 +207,7 @@ static int do_bootaux(struct cmd_tbl *cmdtp, int flag, int argc,
U_BOOT_CMD(
bootaux, CONFIG_SYS_MAXARGS, 1, do_bootaux,
"Start auxiliary core",
- ""
+ "<address> [<core>]\n"
+ " - start auxiliary core [<core>] (default 0),\n"
+ " at address <address>\n"
);
--
2.40.0
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