slippy: Minor vboot related fixes

- Disable EC software sync for now
- Report correct EC active firmware mode
- Force enable developer mode by default
- Set up PCH generic decode regions in romstage
- Pass the oprom_is_loaded flag into vboot handoff data

Change-Id: Ib7ab35e6897c19455cbeecba88160ae830ea7984
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/51155
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4169
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/mainboard/google/slippy/Kconfig

@@ -9,7 +9,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select INTEL_LYNXPOINT_LP
 	select BOARD_ROMSIZE_KB_8192
 	select EC_GOOGLE_CHROMEEC
-	select EC_SOFTWARE_SYNC
 	select HAVE_ACPI_TABLES
 	select HAVE_OPTION_TABLE
 	select HAVE_ACPI_RESUME

src/mainboard/google/slippy/acpi_tables.c

@@ -31,6 +31,7 @@
 #include <cpu/cpu.h>
 #include <cpu/x86/msr.h>
 #include <vendorcode/google/chromeos/gnvs.h>
+#include <ec/google/chromeec/ec.h>
 
 extern const unsigned char AmlCode[];
 #if CONFIG_HAVE_ACPI_SLIC
@@ -88,8 +89,9 @@ static void acpi_create_gnvs(global_nvs_t *gnvs)
 #if CONFIG_CHROMEOS
 	// TODO(reinauer) this could move elsewhere?
 	chromeos_init_vboot(&(gnvs->chromeos));
-	/* Emerald Lake has no EC (?) */
+
-	gnvs->chromeos.vbt2 = ACTIVE_ECFW_RO;
+	gnvs->chromeos.vbt2 = google_ec_running_ro() ?
+		ACTIVE_ECFW_RO : ACTIVE_ECFW_RW;
 #endif
 
 	/* Update the mem console pointer. */

src/mainboard/google/slippy/chromeos.c

@@ -83,7 +83,7 @@ void fill_lb_gpios(struct lb_gpios *gpios)
 /* The dev-switch is virtual */
 int get_developer_mode_switch(void)
 {
-	return 0;
+	return 1;
 }
 
 /* There are actually two recovery switches. One is the magic keyboard chord,

src/southbridge/intel/lynxpoint/early_pch.c

@@ -20,10 +20,12 @@
 
 #include <console/console.h>
 #include <arch/io.h>
+#include <device/device.h>
 #include <device/pci_def.h>
 #include <timestamp.h>
 #include <elog.h>
 #include "pch.h"
+#include "chip.h"
 
 #if CONFIG_INTEL_LYNXPOINT_LP
 #include "lp_gpio.h"
@@ -96,15 +98,29 @@ static int sleep_type_s3(void)
 
 static void pch_enable_lpc(void)
 {
-	device_t dev = PCH_LPC_DEV;
+	const struct device *dev = dev_find_slot(0, PCI_DEVFN(0x1f, 0));
+	const struct southbridge_intel_lynxpoint_config *config = NULL;
 
 	/* Set COM1/COM2 decode range */
-	pci_write_config16(dev, LPC_IO_DEC, 0x0010);
+	pci_write_config16(PCH_LPC_DEV, LPC_IO_DEC, 0x0010);
 
 	/* Enable SuperIO + MC + COM1 + PS/2 Keyboard/Mouse */
 	u16 lpc_config = CNF1_LPC_EN | CNF2_LPC_EN | GAMEL_LPC_EN |
 		COMA_LPC_EN | KBC_LPC_EN | MC_LPC_EN;
-	pci_write_config16(dev, LPC_EN, lpc_config);
+	pci_write_config16(PCH_LPC_DEV, LPC_EN, lpc_config);
+
+	/* Set up generic decode ranges */
+	if (!dev)
+		return;
+	if (dev->chip_info)
+		config = dev->chip_info;
+	if (!config)
+		return;
+
+	pci_write_config32(PCH_LPC_DEV, LPC_GEN1_DEC, config->gen1_dec);
+	pci_write_config32(PCH_LPC_DEV, LPC_GEN2_DEC, config->gen2_dec);
+	pci_write_config32(PCH_LPC_DEV, LPC_GEN3_DEC, config->gen3_dec);
+	pci_write_config32(PCH_LPC_DEV, LPC_GEN4_DEC, config->gen4_dec);
 }
 
 int early_pch_init(const void *gpio_map,

src/southbridge/intel/lynxpoint/lpc.c

@@ -520,18 +520,6 @@ static void pch_fixups(struct device *dev)
 	RCBA32_OR(0x21a8, 0x3);
 }
 
-static void pch_decode_init(struct device *dev)
-{
-	config_t *config = dev->chip_info;
-
-	printk(BIOS_DEBUG, "pch_decode_init\n");
-
-	pci_write_config32(dev, LPC_GEN1_DEC, config->gen1_dec);
-	pci_write_config32(dev, LPC_GEN2_DEC, config->gen2_dec);
-	pci_write_config32(dev, LPC_GEN3_DEC, config->gen3_dec);
-	pci_write_config32(dev, LPC_GEN4_DEC, config->gen4_dec);
-}
-
 static void lpc_init(struct device *dev)
 {
 	printk(BIOS_DEBUG, "pch: lpc_init\n");
@@ -712,12 +700,6 @@ static void pch_lpc_read_resources(device_t dev)
 		memset(gnvs, 0, sizeof(global_nvs_t));
 }
 
-static void pch_lpc_enable_resources(device_t dev)
-{
-	pch_decode_init(dev);
-	return pci_dev_enable_resources(dev);
-}
-
 static void pch_lpc_enable(device_t dev)
 {
 	/* Enable PCH Display Port */
@@ -745,7 +727,7 @@ static struct pci_operations pci_ops = {
 static struct device_operations device_ops = {
 	.read_resources		= pch_lpc_read_resources,
 	.set_resources		= pci_dev_set_resources,
-	.enable_resources	= pch_lpc_enable_resources,
+	.enable_resources	= pci_dev_enable_resources,
 	.init			= lpc_init,
 	.enable			= pch_lpc_enable,
 	.scan_bus		= scan_static_bus,

src/vendorcode/google/chromeos/gnvs.c

@@ -49,9 +49,15 @@ void chromeos_init_vboot(chromeos_acpi_t *chromeos)
 
 	vboot_handoff = cbmem_find(CBMEM_ID_VBOOT_HANDOFF);
 
-	if (vboot_handoff != NULL)
+	if (vboot_handoff != NULL) {
+		vboot_handoff->init_params.flags |= VB_INIT_FLAG_OPROM_MATTERS;
+		if (oprom_is_loaded)
+			vboot_handoff->init_params.flags |=
+				VB_INIT_FLAG_OPROM_LOADED;
+
 		memcpy(&chromeos->vdat[0], &vboot_handoff->shared_data[0],
 		       ARRAY_SIZE(chromeos->vdat));
+	}
 #endif
 
 #if CONFIG_ELOG