vc/google/chromeos: Refactor GNVS init

Move the support code for filling ChromeOS GNVS from
acpi/chromeos-gnvs.c to vc/google/chromeos/gnvs.c.

Change-Id: I7e92206561812eb3dc69739df49b6c3a93853858
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50612
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Lance Zhao
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/acpi/Makefile.inc

@@ -10,7 +10,6 @@ ramstage-$(CONFIG_PCI) += acpigen_pci.c
 ramstage-y += acpigen_ps2_keybd.c
 ramstage-y += acpigen_usb.c
 ramstage-y += device.c
-ramstage-$(CONFIG_CHROMEOS_NVS) += chromeos-gnvs.c
 ramstage-$(CONFIG_ACPI_SOC_NVS) += gnvs.c
 ramstage-y += pld.c
 ramstage-y += sata.c

src/acpi/chromeos-gnvs.c

@@ -1,38 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <acpi/acpi_gnvs.h>
-#include <ec/google/chromeec/ec.h>
-#include <smbios.h>
-#include <vendorcode/google/chromeos/gnvs.h>
-
-void gnvs_assign_chromeos(void *gnvs_section)
-{
-	chromeos_acpi_t *gnvs_chromeos = gnvs_section;
-
-	chromeos_init_chromeos_acpi(gnvs_chromeos);
-
-	/* EC can override to ECFW_RW. */
-	gnvs_chromeos->vbt2 = ACTIVE_ECFW_RO;
-
-	if (CONFIG(EC_GOOGLE_CHROMEEC) && !google_ec_running_ro())
-		gnvs_chromeos->vbt2 = ACTIVE_ECFW_RW;
-}
-
-void gnvs_set_ecfw_rw(void)
-{
-	chromeos_acpi_t *gnvs_chromeos = chromeos_get_chromeos_acpi();
-	if (!gnvs_chromeos)
-		return;
-
-	gnvs_chromeos->vbt2 = ACTIVE_ECFW_RW;
-}
-
-void smbios_type0_bios_version(uintptr_t address)
-{
-	chromeos_acpi_t *gnvs_chromeos = chromeos_get_chromeos_acpi();
-	if (!gnvs_chromeos)
-		return;
-
-	/* Location of smbios_type0.bios_version() string filled with spaces. */
-	gnvs_chromeos->vbt10 = address;
-}

src/acpi/gnvs.c

@@ -38,8 +38,10 @@ void acpi_create_gnvs(void)
 	if (CONFIG(CONSOLE_CBMEM))
 		gnvs->cbmc = (uintptr_t)cbmem_find(CBMEM_ID_CONSOLE);
 
-	if (CONFIG(CHROMEOS_NVS))
-		gnvs_assign_chromeos((u8 *)gnvs + GNVS_CHROMEOS_ACPI_OFFSET);
+	if (CONFIG(CHROMEOS_NVS)) {
+		chromeos_acpi_t *init = (void *)((u8 *)gnvs + GNVS_CHROMEOS_ACPI_OFFSET);
+		chromeos_init_chromeos_acpi(init);
+	}
 }
 
 void *acpi_get_gnvs(void)

src/include/acpi/acpi_gnvs.h

@@ -17,7 +17,6 @@ static inline void *acpi_get_gnvs(void) { return NULL; }
 static inline int acpi_reset_gnvs_for_wake(struct global_nvs **gnvs) { return -1; }
 #endif
 
-void gnvs_assign_chromeos(void *gnvs_section);
 void gnvs_set_ecfw_rw(void);
 
 /*

src/vendorcode/google/chromeos/chromeos.h

@@ -29,6 +29,7 @@ void mainboard_prepare_cr50_reset(void);
 
 void cbmem_add_vpd_calibration_data(void);
 void chromeos_set_me_hash(u32*, int);
+void chromeos_set_ramoops(void *ram_oops, size_t size);
 
 /**
  * get_dsm_calibration_from_key - Gets value related to DSM calibration from VPD

src/vendorcode/google/chromeos/gnvs.c

@@ -1,14 +1,17 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include <acpi/acpi_gnvs.h>
 #include <types.h>
 #include <string.h>
 #include <stdlib.h>
 #include <cbfs.h>
 #include <cbmem.h>
 #include <console/console.h>
+#include <ec/google/chromeec/ec.h>
 #include <fmap.h>
 #include <security/vboot/vbnv.h>
 #include <security/vboot/vboot_common.h>
+#include <smbios.h>
 
 #include "chromeos.h"
 #include "gnvs.h"
@@ -45,6 +48,12 @@ void chromeos_init_chromeos_acpi(chromeos_acpi_t *init)
 		chromeos_acpi->vpd_rw_base = vpd_base;
 		chromeos_acpi->vpd_rw_size = vpd_size;
 	}
+
+	/* EC can override to ECFW_RW. */
+	chromeos_acpi->vbt2 = ACTIVE_ECFW_RO;
+
+	if (CONFIG(EC_GOOGLE_CHROMEEC) && !google_ec_running_ro())
+		chromeos_acpi->vbt2 = ACTIVE_ECFW_RW;
 }
 
 void chromeos_set_me_hash(u32 *hash, int len)
@@ -57,7 +66,27 @@ void chromeos_set_me_hash(u32 *hash, int len)
 		memcpy(chromeos_acpi->mehh, hash, len*sizeof(u32));
 }
 
-chromeos_acpi_t *chromeos_get_chromeos_acpi(void)
+void chromeos_set_ramoops(void *ram_oops, size_t size)
 {
-	return chromeos_acpi;
+	if (!chromeos_acpi)
+		return;
+
+	printk(BIOS_DEBUG, "Ramoops buffer: 0x%zx@%p.\n", size, ram_oops);
+	chromeos_acpi->ramoops_base = (uintptr_t)ram_oops;
+	chromeos_acpi->ramoops_len = size;
+}
+
+void gnvs_set_ecfw_rw(void)
+{
+	if (!chromeos_acpi)
+		return;
+	chromeos_acpi->vbt2 = ACTIVE_ECFW_RW;
+}
+
+void smbios_type0_bios_version(uintptr_t address)
+{
+	if (!chromeos_acpi)
+		return;
+	/* Location of smbios_type0.bios_version() string filled with spaces. */
+	chromeos_acpi->vbt10 = address;
 }

src/vendorcode/google/chromeos/gnvs.h

@@ -42,6 +42,5 @@ typedef struct {
 } __packed chromeos_acpi_t;
 
 void chromeos_init_chromeos_acpi(chromeos_acpi_t *init);
-chromeos_acpi_t *chromeos_get_chromeos_acpi(void);
 
 #endif

src/vendorcode/google/chromeos/ramoops.c

@@ -7,22 +7,7 @@
 #include <bootstate.h>
 #include <console/console.h>
 #include <cbmem.h>
-#include <device/device.h>
 #include "chromeos.h"
-#include "gnvs.h"
-
-static void set_ramoops(void *ram_oops, size_t size)
-{
-	chromeos_acpi_t *chromeos = chromeos_get_chromeos_acpi();
-	if (chromeos == NULL) {
-		printk(BIOS_DEBUG, "chromeos gnvs is NULL. ramoops not set.\n");
-		return;
-	}
-
-	printk(BIOS_DEBUG, "Ramoops buffer: 0x%zx@%p.\n", size, ram_oops);
-	chromeos->ramoops_base = (uintptr_t)ram_oops;
-	chromeos->ramoops_len = size;
-}
 
 static void ramoops_alloc(void *arg)
 {
@@ -39,7 +24,7 @@ static void ramoops_alloc(void *arg)
 	}
 
 	if (CONFIG(CHROMEOS_NVS))
-		set_ramoops(ram_oops, size);
+		chromeos_set_ramoops(ram_oops, size);
 }
 
 BOOT_STATE_INIT_ENTRY(BS_WRITE_TABLES, BS_ON_ENTRY, ramoops_alloc, NULL);