Merge branch '2019-07-24-master-imports'

- Various Android related changes including A/B update and BCB updates
- Assorted minor fixes

5 files changed, 129 insertions, 13 deletions

diff --git a/include/android_ab.h b/include/android_ab.h
new file mode 100644
index 0000000000..810906d22b
--- /dev/null
+++ b/include/android_ab.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ */
+
+#ifndef __ANDROID_AB_H
+#define __ANDROID_AB_H
+
+#include <common.h>
+
+/* Android standard boot slot names are 'a', 'b', 'c', ... */
+#define BOOT_SLOT_NAME(slot_num) ('a' + (slot_num))
+
+/* Number of slots */
+#define NUM_SLOTS 2
+
+/**
+ * Select the slot where to boot from.
+ *
+ * On Android devices with more than one boot slot (multiple copies of the
+ * kernel and system images) selects which slot should be used to boot from and
+ * registers the boot attempt. This is used in by the new A/B update model where
+ * one slot is updated in the background while running from the other slot. If
+ * the selected slot did not successfully boot in the past, a boot attempt is
+ * registered before returning from this function so it isn't selected
+ * indefinitely.
+ *
+ * @param[in] dev_desc Place to store the device description pointer
+ * @param[in] part_info Place to store the partition information
+ * @return The slot number (>= 0) on success, or a negative on error
+ */
+int ab_select_slot(struct blk_desc *dev_desc, disk_partition_t *part_info);
+
+#endif /* __ANDROID_AB_H */
diff --git a/include/config_distro_bootcmd.h b/include/config_distro_bootcmd.h
index 26e61ef196..3570a32dff 100644
--- a/include/config_distro_bootcmd.h
+++ b/include/config_distro_bootcmd.h
@@ -254,11 +254,11 @@
 #endif
 
 #if defined(CONFIG_DM_PCI)
-#define BOOTENV_RUN_NET_PCI_ENUM "run boot_net_pci_enum; "
+#define BOOTENV_RUN_PCI_ENUM "run boot_pci_enum; "
 #define BOOTENV_SHARED_PCI \
-	"boot_net_pci_enum=pci enum\0"
+	"boot_pci_enum=pci enum\0"
 #else
-#define BOOTENV_RUN_NET_PCI_ENUM
+#define BOOTENV_RUN_PCI_ENUM
 #define BOOTENV_SHARED_PCI
 #endif
 
@@ -281,10 +281,24 @@
 #endif
 
 #ifdef CONFIG_CMD_VIRTIO
-#define BOOTENV_SHARED_VIRTIO	BOOTENV_SHARED_BLKDEV(virtio)
+#define BOOTENV_RUN_VIRTIO_INIT "run virtio_init; "
+#define BOOTENV_SET_VIRTIO_NEED_INIT "virtio_need_init=; "
+#define BOOTENV_SHARED_VIRTIO \
+	"virtio_init=" \
+		"if ${virtio_need_init}; then " \
+			"virtio_need_init=false; " \
+			"virtio scan; " \
+		"fi\0" \
+	\
+	"virtio_boot=" \
+		BOOTENV_RUN_PCI_ENUM \
+		BOOTENV_RUN_VIRTIO_INIT \
+		BOOTENV_SHARED_BLKDEV_BODY(virtio)
 #define BOOTENV_DEV_VIRTIO	BOOTENV_DEV_BLKDEV
 #define BOOTENV_DEV_NAME_VIRTIO	BOOTENV_DEV_NAME_BLKDEV
 #else
+#define BOOTENV_RUN_VIRTIO_INIT
+#define BOOTENV_SET_VIRTIO_NEED_INIT
 #define BOOTENV_SHARED_VIRTIO
 #define BOOTENV_DEV_VIRTIO \
 	BOOT_TARGET_DEVICES_references_VIRTIO_without_CONFIG_CMD_VIRTIO
@@ -350,7 +364,7 @@
 #define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \
 	"bootcmd_dhcp=" \
 		BOOTENV_RUN_NET_USB_START \
-		BOOTENV_RUN_NET_PCI_ENUM \
+		BOOTENV_RUN_PCI_ENUM \
 		"if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \
 			"source ${scriptaddr}; " \
 		"fi;" \
@@ -369,7 +383,7 @@
 #define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \
 	"bootcmd_pxe=" \
 		BOOTENV_RUN_NET_USB_START \
-		BOOTENV_RUN_NET_PCI_ENUM \
+		BOOTENV_RUN_PCI_ENUM \
 		"dhcp; " \
 		"if pxe get; then " \
 			"pxe boot; " \
@@ -465,6 +479,7 @@
 	"distro_bootcmd=" BOOTENV_SET_SCSI_NEED_INIT                      \
 		BOOTENV_SET_NVME_NEED_INIT                                \
 		BOOTENV_SET_IDE_NEED_INIT                                 \
+		BOOTENV_SET_VIRTIO_NEED_INIT                              \
 		"for target in ${boot_targets}; do "                      \
 			"run bootcmd_${target}; "                         \
 		"done\0"
diff --git a/include/environment/ti/boot.h b/include/environment/ti/boot.h
index 05bdbbc23e..54e9b2de4d 100644
--- a/include/environment/ti/boot.h
+++ b/include/environment/ti/boot.h
@@ -23,6 +23,18 @@
 #define VBMETA_PART			""
 #endif
 
+#if defined(CONFIG_CMD_AB_SELECT)
+#define COMMON_PARTS \
+	"name=boot_a,size=20M,uuid=${uuid_gpt_boot_a};" \
+	"name=boot_b,size=20M,uuid=${uuid_gpt_boot_b};" \
+	"name=system_a,size=1024M,uuid=${uuid_gpt_system_a};" \
+	"name=system_b,size=1024M,uuid=${uuid_gpt_system_b};"
+#else
+#define COMMON_PARTS \
+	"name=boot,size=20M,uuid=${uuid_gpt_boot};" \
+	"name=system,size=1024M,uuid=${uuid_gpt_system};"
+#endif
+
 #ifndef PARTS_DEFAULT
 /* Define the default GPT table for eMMC */
 #define PARTS_DEFAULT \
@@ -38,8 +50,7 @@
 	"name=uboot-env,start=2432K,size=256K,uuid=${uuid_gpt_reserved};" \
 	"name=misc,size=128K,uuid=${uuid_gpt_misc};" \
 	"name=recovery,size=40M,uuid=${uuid_gpt_recovery};" \
-	"name=boot,size=10M,uuid=${uuid_gpt_boot};" \
-	"name=system,size=1024M,uuid=${uuid_gpt_system};" \
+	COMMON_PARTS \
 	"name=vendor,size=256M,uuid=${uuid_gpt_vendor};" \
 	VBMETA_PART \
 	"name=userdata,size=-,uuid=${uuid_gpt_userdata}"
@@ -58,6 +69,35 @@
 #define AVB_VERIFY_CMD ""
 #endif
 
+#define CONTROL_PARTITION "misc"
+
+#if defined(CONFIG_CMD_AB_SELECT)
+#define AB_SELECT \
+	"if part number mmc 1 " CONTROL_PARTITION " control_part_number; " \
+	"then " \
+		"echo " CONTROL_PARTITION \
+			" partition number:${control_part_number};" \
+		"ab_select slot_name mmc ${mmcdev}:${control_part_number};" \
+	"else " \
+		"echo " CONTROL_PARTITION " partition not found;" \
+		"exit;" \
+	"fi;" \
+	"setenv slot_suffix _${slot_name};" \
+	"if part number mmc ${mmcdev} system${slot_suffix} " \
+	"system_part_number; then " \
+		"setenv bootargs_ab " \
+		"ro root=/dev/mmcblk${mmcdev}p${system_part_number} " \
+		"rootwait init=/init skip_initramfs " \
+		"androidboot.slot_suffix=${slot_suffix};" \
+		"echo A/B cmdline addition: ${bootargs_ab};" \
+		"setenv bootargs ${bootargs} ${bootargs_ab};" \
+	"else " \
+		"echo system${slot_suffix} partition not found;" \
+	"fi;"
+#else
+#define AB_SELECT ""
+#endif
+
 #define DEFAULT_COMMON_BOOT_TI_ARGS \
 	"console=" CONSOLEDEV ",115200n8\0" \
 	"fdtfile=undefined\0" \
@@ -86,10 +126,16 @@
 		"mmc dev $mmcdev; " \
 		"mmc rescan; " \
 		AVB_VERIFY_CHECK \
-		"part start mmc ${mmcdev} boot boot_start; " \
-		"part size mmc ${mmcdev} boot boot_size; " \
-		"mmc read ${loadaddr} ${boot_start} ${boot_size}; " \
-		"bootm ${loadaddr}#${fdtfile};\0 "
+		AB_SELECT \
+		"if part start mmc ${mmcdev} boot${slot_suffix} boot_start; " \
+		"then " \
+			"part size mmc ${mmcdev} boot${slot_suffix} " \
+				"boot_size; " \
+			"mmc read ${loadaddr} ${boot_start} ${boot_size}; " \
+			"bootm ${loadaddr}#${fdtfile}; " \
+		"else " \
+			"echo boot${slot_suffix} partition not found; " \
+		"fi;\0"
 
 #ifdef CONFIG_OMAP54XX
 
diff --git a/include/part.h b/include/part.h
index ebca546db5..0b5cf3d5e8 100644
--- a/include/part.h
+++ b/include/part.h
@@ -202,6 +202,27 @@ int part_get_info_by_name(struct blk_desc *dev_desc,
 			      const char *name, disk_partition_t *info);
 
 /**
+ * Get partition info from dev number + part name, or dev number + part number.
+ *
+ * Parse a device number and partition description (either name or number)
+ * in the form of device number plus partition name separated by a "#"
+ * (like "device_num#partition_name") or a device number plus a partition number
+ * separated by a ":". For example both "0#misc" and "0:1" can be valid
+ * partition descriptions for a given interface. If the partition is found, sets
+ * dev_desc and part_info accordingly with the information of the partition.
+ *
+ * @param[in] dev_iface	Device interface
+ * @param[in] dev_part_str Input partition description, like "0#misc" or "0:1"
+ * @param[out] dev_desc	Place to store the device description pointer
+ * @param[out] part_info Place to store the partition information
+ * @return 0 on success, or a negative on error
+ */
+int part_get_info_by_dev_and_name_or_num(const char *dev_iface,
+					 const char *dev_part_str,
+					 struct blk_desc **dev_desc,
+					 disk_partition_t *part_info);
+
+/**
  * part_set_generic_name() - create generic partition like hda1 or sdb2
  *
  * Helper function for partition tables, which don't hold partition names
diff --git a/include/remoteproc.h b/include/remoteproc.h
index c29c0867bc..4987194905 100644
--- a/include/remoteproc.h
+++ b/include/remoteproc.h
@@ -130,7 +130,7 @@ struct dm_rproc_ops {
 /* Accessor */
 #define rproc_get_ops(dev) ((struct dm_rproc_ops *)(dev)->driver->ops)
 
-#ifdef CONFIG_REMOTEPROC
+#if CONFIG_IS_ENABLED(REMOTEPROC)
 /**
  * rproc_init() - Initialize all bound remote proc devices
  * @return 0 if all ok, else appropriate error value.