mainboard/google/fatcat: Update SoC to Panther Lake

This commit updates the fatcat mainboard to use the Panther Lake SoC
instead of Meteor Lake.

The changes include:

- Selecting the `SOC_INTEL_PANTHERLAKE_U_H` config option.
- Updating the `mainboard_update_soc_chip_config()` function to use the
  `soc_intel_pantherlake_config` struct.
- Updating the devicetree to use the `soc/intel/pantherlake` chip.
- Updating variant header files to reflect the SoC change.

This update enables support for the Panther Lake SoC and its
features on the fatcat mainboard.

BUG=b:347669091
TEST=Able to build google/fatcat.

Change-Id: Ie0c6257dfb9dd1f627472ad220614f9b24c911ef
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84537
Reviewed-by: Pranava Y N <pranavayn@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/fatcat/Kconfig

@@ -20,6 +20,7 @@ config BOARD_GOOGLE_FATCAT_COMMON
 	select SOC_INTEL_CSE_LITE_SKU
 	select SOC_INTEL_CSE_PRE_CPU_RESET_TELEMETRY_V2
 	select SOC_INTEL_CSE_SEND_EOP_ASYNC
+	select SOC_INTEL_PANTHERLAKE_U_H
 
 config BOARD_GOOGLE_BASEBOARD_FATCAT
 	def_bool n
@@ -28,7 +29,6 @@ config BOARD_GOOGLE_BASEBOARD_FATCAT
 	select MAINBOARD_HAS_CHROMEOS
 	select MEMORY_SOLDERDOWN
 	select SOC_INTEL_IOE_DIE_SUPPORT
-	select SOC_INTEL_METEORLAKE_U_H
 	select SYSTEM_TYPE_LAPTOP
 	select TPM_GOOGLE_TI50
 

src/mainboard/google/fatcat/mainboard.c

@@ -16,12 +16,12 @@ void __weak fw_config_gpio_padbased_override(struct pad_config *padbased_table)
 	/* default implementation does nothing */
 }
 
-void mainboard_update_soc_chip_config(struct soc_intel_meteorlake_config *config)
+void mainboard_update_soc_chip_config(struct soc_intel_pantherlake_config *config)
 {
 	variant_update_soc_chip_config(config);
 }
 
-__weak void variant_update_soc_chip_config(struct soc_intel_meteorlake_config *config)
+__weak void variant_update_soc_chip_config(struct soc_intel_pantherlake_config *config)
 {
 	/* default implementation does nothing */
 }

src/mainboard/google/fatcat/variants/baseboard/fatcat/devicetree.cb

@@ -1,3 +1,3 @@
-chip soc/intel/meteorlake
+chip soc/intel/pantherlake
 	device domain 0 on end
 end

src/mainboard/google/fatcat/variants/baseboard/include/baseboard/variants.h

@@ -22,7 +22,7 @@ const struct mb_cfg *variant_memory_params(void);
 void variant_get_spd_info(struct mem_spd *spd_info);
 int variant_memory_sku(void);
 bool variant_is_half_populated(void);
-void variant_update_soc_chip_config(struct soc_intel_meteorlake_config *config);
+void variant_update_soc_chip_config(struct soc_intel_pantherlake_config *config);
 
 /* Get soc power limit config struct for current CPU sku */
 struct soc_power_limits_config *variant_get_soc_power_limit_config(void);