imx93: Add Low performance parts 9302/9301 support
Add support for iMX93 low performance parts 9302 and 9301 which
restrict to low drive voltage only.
The parts run A55 max speed at 900Mhz and M33 at 133Mhz, have NPU
and A55 core1 (9301) disabled.
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/include/asm/arch-imx/cpu.h b/arch/arm/include/asm/arch-imx/cpu.h
index cbd2717..b0468a1 100644
--- a/arch/arm/include/asm/arch-imx/cpu.h
+++ b/arch/arm/include/asm/arch-imx/cpu.h
@@ -68,6 +68,8 @@
#define MXC_CPU_IMX9321 0xC6 /* dummy ID */
#define MXC_CPU_IMX9312 0xC7 /* dummy ID */
#define MXC_CPU_IMX9311 0xC8 /* dummy ID */
+#define MXC_CPU_IMX9302 0xC9 /* dummy ID */
+#define MXC_CPU_IMX9301 0xCA /* dummy ID */
#define MXC_SOC_MX6 0x60
#define MXC_SOC_MX7 0x70
diff --git a/arch/arm/include/asm/mach-imx/sys_proto.h b/arch/arm/include/asm/mach-imx/sys_proto.h
index d93e095..c146a22 100644
--- a/arch/arm/include/asm/mach-imx/sys_proto.h
+++ b/arch/arm/include/asm/mach-imx/sys_proto.h
@@ -85,7 +85,8 @@
#define is_imx93() (is_cpu_type(MXC_CPU_IMX93) || is_cpu_type(MXC_CPU_IMX9331) || \
is_cpu_type(MXC_CPU_IMX9332) || is_cpu_type(MXC_CPU_IMX9351) || \
is_cpu_type(MXC_CPU_IMX9322) || is_cpu_type(MXC_CPU_IMX9321) || \
- is_cpu_type(MXC_CPU_IMX9312) || is_cpu_type(MXC_CPU_IMX9311))
+ is_cpu_type(MXC_CPU_IMX9312) || is_cpu_type(MXC_CPU_IMX9311) || \
+ is_cpu_type(MXC_CPU_IMX9302) || is_cpu_type(MXC_CPU_IMX9301))
#define is_imx9351() (is_cpu_type(MXC_CPU_IMX9351))
#define is_imx9332() (is_cpu_type(MXC_CPU_IMX9332))
#define is_imx9331() (is_cpu_type(MXC_CPU_IMX9331))
@@ -93,6 +94,8 @@
#define is_imx9321() (is_cpu_type(MXC_CPU_IMX9321))
#define is_imx9312() (is_cpu_type(MXC_CPU_IMX9312))
#define is_imx9311() (is_cpu_type(MXC_CPU_IMX9311))
+#define is_imx9302() (is_cpu_type(MXC_CPU_IMX9302))
+#define is_imx9301() (is_cpu_type(MXC_CPU_IMX9301))
#define is_imxrt1020() (is_cpu_type(MXC_CPU_IMXRT1020))
#define is_imxrt1050() (is_cpu_type(MXC_CPU_IMXRT1050))
diff --git a/arch/arm/mach-imx/imx9/Kconfig b/arch/arm/mach-imx/imx9/Kconfig
index e892da8..63e75b6 100644
--- a/arch/arm/mach-imx/imx9/Kconfig
+++ b/arch/arm/mach-imx/imx9/Kconfig
@@ -30,6 +30,7 @@
config TARGET_IMX93_11X11_EVK
bool "imx93_11x11_evk"
+ select OF_BOARD_FIXUP
select IMX93
imply OF_UPSTREAM
diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c
index e3bfc8d..6364709 100644
--- a/arch/arm/mach-imx/imx9/soc.c
+++ b/arch/arm/mach-imx/imx9/soc.c
@@ -191,6 +191,10 @@
bool core1_disable = !!(val & BIT(15));
u32 pack_9x9_fused = BIT(4) | BIT(17) | BIT(19) | BIT(24);
+ /* Low performance 93 part */
+ if (((val >> 6) & 0x3F) == 0xE && npu_disable)
+ return core1_disable ? MXC_CPU_IMX9301 : MXC_CPU_IMX9302;
+
if ((val2 & pack_9x9_fused) == pack_9x9_fused)
type = MXC_CPU_IMX9322;
@@ -704,7 +708,7 @@
if (fixup_thermal_trips(blob, "cpu-thermal"))
printf("Failed to update cpu-thermal trip(s)");
- if (is_imx9351() || is_imx9331() || is_imx9321() || is_imx9311())
+ if (is_imx9351() || is_imx9331() || is_imx9321() || is_imx9311() || is_imx9301())
disable_cpu_nodes(blob, nodes_path, 1, 2);
if (is_voltage_mode(VOLT_LOW_DRIVE))
diff --git a/drivers/cpu/imx8_cpu.c b/drivers/cpu/imx8_cpu.c
index 60deca9..6c0a8c0 100644
--- a/drivers/cpu/imx8_cpu.c
+++ b/drivers/cpu/imx8_cpu.c
@@ -60,6 +60,10 @@
return "93(12)";/* iMX93 9x9 Dual core without NPU */
case MXC_CPU_IMX9311:
return "93(11)";/* iMX93 9x9 Single core without NPU */
+ case MXC_CPU_IMX9302:
+ return "93(02)";/* iMX93 900Mhz Low performance Dual core without NPU */
+ case MXC_CPU_IMX9301:
+ return "93(01)";/* iMX93 900Mhz Low performance Single core without NPU */
default:
return "??";
}