From: Peng Fan <peng.fan@nxp.com>
Date: Thu, 19 Sep 2024 04:01:32 +0000 (+0800)
Subject: imx9: soc: Disable cpu1 for variants that only has one A55 core
X-Git-Url: http://git.dujemihanovic.xyz/%22/img/sics.gif/%22/static/git-favicon.png?a=commitdiff_plain;h=98f948ec531ab42942becd4cfaea63da53a38b73;p=u-boot.git

imx9: soc: Disable cpu1 for variants that only has one A55 core

Disale CPU1 for i.MX93 variants that only has one A55 core and update
cooling maps.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---

diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 47e2cb8d94..f8903afc92 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -12,7 +12,6 @@ endif
 ifeq ($(SOC),$(filter $(SOC),imx8m))
 ifneq ($(CONFIG_SPL_BUILD),y)
 obj-$(CONFIG_IMX_BOOTAUX) += imx_bootaux.o
-obj-y += fdt.o
 endif
 obj-$(CONFIG_ENV_IS_IN_MMC) += mmc_env.o
 obj-$(CONFIG_FEC_MXC) += mac.o
@@ -22,6 +21,12 @@ obj-$(CONFIG_IMX_HAB) += hab.o
 obj-y += cpu.o
 endif
 
+ifeq ($(SOC),$(filter $(SOC),imx8m imx9))
+ifneq ($(CONFIG_SPL_BUILD),y)
+obj-y += fdt.o
+endif
+endif
+
 ifeq ($(SOC),$(filter $(SOC),mx5 mx6))
 obj-y	+= cpu.o speed.o
 ifneq ($(CONFIG_MX51),y)
diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c
index 0d909c3e85..e3bfc8d51c 100644
--- a/arch/arm/mach-imx/imx9/soc.c
+++ b/arch/arm/mach-imx/imx9/soc.c
@@ -696,9 +696,17 @@ int board_fix_fdt(void *fdt)
 
 int ft_system_setup(void *blob, struct bd_info *bd)
 {
+	static const char * const nodes_path[] = {
+		"/cpus/cpu@0",
+		"/cpus/cpu@100",
+	};
+
 	if (fixup_thermal_trips(blob, "cpu-thermal"))
 		printf("Failed to update cpu-thermal trip(s)");
 
+	if (is_imx9351() || is_imx9331() || is_imx9321() || is_imx9311())
+		disable_cpu_nodes(blob, nodes_path, 1, 2);
+
 	if (is_voltage_mode(VOLT_LOW_DRIVE))
 		low_drive_freq_update(blob);