soc/intel/mtl: Select CSE defined ME spec version for meteorlake

Meteorlake based SoCs uses Intel's Management Engine (ME), version 18.
This patch selects ME 18 specification defined at common code and
removes meteorlake SoC specific ME code and data structures.

BUG=b:260309647
Test=Build verified for rex.

Signed-off-by: Dinesh Gehlot <digehlot@google.com>
Change-Id: I36ee66f94f0c37ab6a134e79e49da9abc83b93cb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73137
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>

4 files changed, 1 insertions, 181 deletions

diff --git a/src/soc/intel/meteorlake/Kconfig b/src/soc/intel/meteorlake/Kconfig
index c00be8fe20..03782ddaaa 100644
--- a/src/soc/intel/meteorlake/Kconfig
+++ b/src/soc/intel/meteorlake/Kconfig
@@ -69,6 +69,7 @@ config CPU_SPECIFIC_OPTIONS
 	select SOC_INTEL_COMMON_BLOCK_IPU
 	select SOC_INTEL_COMMON_BLOCK_IOE_P2SB
 	select SOC_INTEL_COMMON_BLOCK_IRQ
+	select SOC_INTEL_COMMON_BLOCK_ME_SPEC_18
 	select SOC_INTEL_COMMON_BLOCK_MEMINIT
 	select SOC_INTEL_COMMON_BLOCK_PCIE_RTD3
 	select SOC_INTEL_COMMON_BLOCK_PMC_EPOC
diff --git a/src/soc/intel/meteorlake/Makefile.inc b/src/soc/intel/meteorlake/Makefile.inc
index 2876e16c9e..87fb3a3228 100644
--- a/src/soc/intel/meteorlake/Makefile.inc
+++ b/src/soc/intel/meteorlake/Makefile.inc
@@ -35,7 +35,6 @@ ramstage-y += espi.c
 ramstage-y += finalize.c
 ramstage-y += fsp_params.c
 ramstage-y += lockdown.c
-ramstage-y += me.c
 ramstage-y += p2sb.c
 ramstage-y += pcie_rp.c
 ramstage-y += pmc.c
diff --git a/src/soc/intel/meteorlake/include/soc/me.h b/src/soc/intel/meteorlake/include/soc/me.h
deleted file mode 100644
index 58f9052e20..0000000000
--- a/src/soc/intel/meteorlake/include/soc/me.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#ifndef _METEORLAKE_ME_H_
-#define _METEORLAKE_ME_H_
-
-/* ME Host Firmware Status register 1 */
-union me_hfsts1 {
-	uint32_t data;
-	struct {
-		uint32_t working_state		: 4;
-		uint32_t mfg_mode		: 1;
-		uint32_t fpt_bad		: 1;
-		uint32_t operation_state	: 3;
-		uint32_t fw_init_complete	: 1;
-		uint32_t ft_bup_ld_flr		: 1;
-		uint32_t update_in_progress	: 1;
-		uint32_t error_code		: 4;
-		uint32_t operation_mode		: 4;
-		uint32_t reserved_0		: 4;
-		uint32_t boot_options_present	: 1;
-		uint32_t invoke_enhance_dbg_mode: 1;
-		uint32_t reserved_1		: 5;
-		uint32_t d0i3_support_valid	: 1;
-	} __packed fields;
-};
-
-/* Host Firmware Status Register 2 */
-union me_hfsts2 {
-	uint32_t data;
-	struct {
-		uint32_t reserved_0		: 4;
-		uint32_t cpu_replaced		: 1;
-		uint32_t reserved_1		: 3;
-		uint32_t cpu_replaced_valid	: 1;
-		uint32_t low_power_state	: 1;
-		uint32_t reserved_2		: 22;
-	} __packed fields;
-};
-
-/* ME Host Firmware Status Register 3 */
-union me_hfsts3 {
-	uint32_t data;
-	struct {
-		uint32_t reserved_0		: 4;
-		uint32_t fw_sku			: 3;
-		uint32_t reserved_1		: 25;
-	} __packed fields;
-};
-
-/* Host Firmware Status Register 4 */
-union me_hfsts4 {
-	uint32_t data;
-	struct {
-		uint32_t rsvd0;
-	} __packed fields;
-};
-
-/* Host Firmware Status Register 5 */
-union me_hfsts5 {
-	uint32_t data;
-	struct {
-		uint32_t reserved_0		: 17;
-		uint32_t txt_support		: 1;
-		uint32_t reserved_1		: 3;
-		uint32_t cpu_debug_disabled	: 1;
-		uint32_t reserved_2		: 10;
-	} __packed fields;
-};
-
-/* Host Firmware Status Register 6 */
-union me_hfsts6 {
-	uint32_t data;
-	struct {
-		uint32_t reserved_0		: 21;
-		uint32_t manuf_lock		: 1;
-		uint32_t reserved_1		: 8;
-		uint32_t fpf_soc_lock		: 1;
-		uint32_t reserved_2		: 1;
-	} __packed fields;
-};
-#endif
diff --git a/src/soc/intel/meteorlake/me.c b/src/soc/intel/meteorlake/me.c
deleted file mode 100644
index 815cb0d5d9..0000000000
--- a/src/soc/intel/meteorlake/me.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <bootstate.h>
-#include <intelblocks/cse.h>
-#include <console/console.h>
-#include <soc/me.h>
-#include <stdint.h>
-
-static bool is_manufacturing_mode(union me_hfsts1 hfsts1, union me_hfsts6 hfsts6)
-{
-	/*
-	 * ME manufacturing mode is disabled if the descriptor is locked, fuses
-	 * are programmed and manufacturing variables are locked.
-	 */
-	return !((hfsts1.fields.mfg_mode == 0) &&
-		 (hfsts6.fields.fpf_soc_lock == 1) &&
-		 (hfsts6.fields.manuf_lock == 1));
-}
-
-static void dump_me_status(void *unused)
-{
-	union me_hfsts1 hfsts1;
-	union me_hfsts2 hfsts2;
-	union me_hfsts3 hfsts3;
-	union me_hfsts4 hfsts4;
-	union me_hfsts5 hfsts5;
-	union me_hfsts6 hfsts6;
-	bool manufacturing_mode;
-
-	if (!is_cse_enabled())
-		return;
-
-	hfsts1.data = me_read_config32(PCI_ME_HFSTS1);
-	hfsts2.data = me_read_config32(PCI_ME_HFSTS2);
-	hfsts3.data = me_read_config32(PCI_ME_HFSTS3);
-	hfsts4.data = me_read_config32(PCI_ME_HFSTS4);
-	hfsts5.data = me_read_config32(PCI_ME_HFSTS5);
-	hfsts6.data = me_read_config32(PCI_ME_HFSTS6);
-
-	printk(BIOS_DEBUG, "ME: HFSTS1                      : 0x%08X\n", hfsts1.data);
-	printk(BIOS_DEBUG, "ME: HFSTS2                      : 0x%08X\n", hfsts2.data);
-	printk(BIOS_DEBUG, "ME: HFSTS3                      : 0x%08X\n", hfsts3.data);
-	printk(BIOS_DEBUG, "ME: HFSTS4                      : 0x%08X\n", hfsts4.data);
-	printk(BIOS_DEBUG, "ME: HFSTS5                      : 0x%08X\n", hfsts5.data);
-	printk(BIOS_DEBUG, "ME: HFSTS6                      : 0x%08X\n", hfsts6.data);
-
-	manufacturing_mode = is_manufacturing_mode(hfsts1, hfsts6);
-	printk(BIOS_DEBUG, "ME: Manufacturing Mode          : %s\n",
-	       manufacturing_mode ? "YES" : "NO");
-
-	/*
-	 * The SPI Protection Mode bit reflects SPI descriptor
-	 * locked(0) or unlocked(1).
-	 */
-	printk(BIOS_DEBUG, "ME: SPI Protection Mode Enabled : %s\n",
-		hfsts1.fields.mfg_mode ? "NO" : "YES");
-	printk(BIOS_DEBUG, "ME: FPFs Committed              : %s\n",
-		hfsts6.fields.fpf_soc_lock ? "YES" : "NO");
-	printk(BIOS_DEBUG, "ME: Manufacturing Vars Locked   : %s\n",
-		hfsts6.fields.manuf_lock ? "YES" : "NO");
-	printk(BIOS_DEBUG, "ME: FW Partition Table          : %s\n",
-		hfsts1.fields.fpt_bad ? "BAD" : "OK");
-	printk(BIOS_DEBUG, "ME: Bringup Loader Failure      : %s\n",
-		hfsts1.fields.ft_bup_ld_flr ? "YES" : "NO");
-	printk(BIOS_DEBUG, "ME: Firmware Init Complete      : %s\n",
-		hfsts1.fields.fw_init_complete ? "YES" : "NO");
-	printk(BIOS_DEBUG, "ME: Boot Options Present        : %s\n",
-		hfsts1.fields.boot_options_present ? "YES" : "NO");
-	printk(BIOS_DEBUG, "ME: Update In Progress          : %s\n",
-		hfsts1.fields.update_in_progress ? "YES" : "NO");
-	printk(BIOS_DEBUG, "ME: D0i3 Support                : %s\n",
-		hfsts1.fields.d0i3_support_valid ? "YES" : "NO");
-	printk(BIOS_DEBUG, "ME: Low Power State Enabled     : %s\n",
-		hfsts2.fields.low_power_state ? "YES" : "NO");
-	printk(BIOS_DEBUG, "ME: CPU Replaced                : %s\n",
-		hfsts2.fields.cpu_replaced  ? "YES" : "NO");
-	printk(BIOS_DEBUG, "ME: CPU Replacement Valid       : %s\n",
-		hfsts2.fields.cpu_replaced_valid ? "YES" : "NO");
-	printk(BIOS_DEBUG, "ME: Current Working State       : %u\n",
-		hfsts1.fields.working_state);
-	printk(BIOS_DEBUG, "ME: Current Operation State     : %u\n",
-		hfsts1.fields.operation_state);
-	printk(BIOS_DEBUG, "ME: Current Operation Mode      : %u\n",
-		hfsts1.fields.operation_mode);
-	printk(BIOS_DEBUG, "ME: Error Code                  : %u\n",
-		hfsts1.fields.error_code);
-	printk(BIOS_DEBUG, "ME: Enhanced Debug Mode         : %s\n",
-		hfsts1.fields.invoke_enhance_dbg_mode ? "YES" : "NO");
-	printk(BIOS_DEBUG, "ME: CPU Debug Disabled          : %s\n",
-		hfsts5.fields.cpu_debug_disabled ? "YES" : "NO");
-	printk(BIOS_DEBUG, "ME: TXT Support                 : %s\n",
-		hfsts5.fields.txt_support ? "YES" : "NO");
-
-	if (CONFIG(SOC_INTEL_CSE_LITE_SKU))
-		cse_log_ro_write_protection_info(manufacturing_mode);
-}
-
-BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_EXIT, print_me_fw_version, NULL);
-BOOT_STATE_INIT_ENTRY(BS_OS_RESUME_CHECK, BS_ON_EXIT, dump_me_status, NULL);