[PATCH v2 01/39] RFC: efi: Drop code that doesn't work with driver model

[Simon Glass <sjg@chromium.org>]

This code should never have been added as it builds a new feature on top
of legacy code. This has already been improved with the dependency on BLK.

Add a dependency on DM_ETH also, to avoid needing to deal with this old
code.

Boards which want EFI_LOADER should migrate to driver model first.

Note this patch is included to resolve the following build error:

lib/efi_loader/efi_runtime.c:680:16: error: ‘CONFIG_SYS_TEXT_BASE’
	undeclared (first use in this function); did you mean
	‘CONFIG_SYS_SRAM_BASE’?
  680 |   ulong base = CONFIG_SYS_TEXT_BASE;
      |                ^~~~~~~~~~~~~~~~~~~~
      |                CONFIG_SYS_SRAM_BASE

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2:
- Mention why this patch is included in this series
- Put this patch first so that it is separated from the rest of the series

 lib/efi_driver/Makefile          |  2 +-
 lib/efi_loader/Kconfig           |  1 +
 lib/efi_loader/efi_device_path.c | 96 +++++++-------------------------
 lib/efi_loader/efi_disk.c        | 48 ----------------
 4 files changed, 23 insertions(+), 124 deletions(-)

diff --git a/lib/efi_driver/Makefile b/lib/efi_driver/Makefile
index 83baa1c9a49..f2b6c05cc24 100644
--- a/lib/efi_driver/Makefile
+++ b/lib/efi_driver/Makefile
@@ -6,6 +6,6 @@
 # object inclusion implicitly depends on it
 
 obj-y += efi_uclass.o
-ifeq ($(CONFIG_BLK)$(CONFIG_PARTITIONS),yy)
+ifeq ($(CONFIG_PARTITIONS),y)
 obj-y += efi_block_device.o
 endif
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig
index 14bf5f7e92e..4d0d2a0e0b7 100644
--- a/lib/efi_loader/Kconfig
+++ b/lib/efi_loader/Kconfig
@@ -11,6 +11,7 @@ config EFI_LOADER
 	# We need EFI_STUB_32BIT to be set on x86_32 with EFI_STUB
 	depends on !EFI_STUB || !X86 || X86_64 || EFI_STUB_32BIT
 	depends on BLK
+	depends on DM_ETH || !NET
 	default y if !ARM || SYS_CPU = armv7 || SYS_CPU = armv8
 	select LIB_UUID
 	select PARTITION_UUIDS
diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c
index cbdb466da41..a09090a32e4 100644
--- a/lib/efi_loader/efi_device_path.c
+++ b/lib/efi_loader/efi_device_path.c
@@ -46,7 +46,7 @@ static const struct efi_device_path_vendor ROOT = {
 	.guid = U_BOOT_GUID,
 };
 
-#if defined(CONFIG_DM_MMC) && defined(CONFIG_MMC)
+#if defined(CONFIG_MMC)
 /*
  * Determine if an MMC device is an SD card.
  *
@@ -486,7 +486,6 @@ bool efi_dp_is_multi_instance(const struct efi_device_path *dp)
 	return p->sub_type == DEVICE_PATH_SUB_TYPE_INSTANCE_END;
 }
 
-#ifdef CONFIG_DM
 /* size of device-path not including END node for device and all parents
  * up to the root device.
  */
@@ -503,7 +502,6 @@ __maybe_unused static unsigned int dp_size(struct udevice *dev)
 	case UCLASS_ETH:
 		return dp_size(dev->parent) +
 			sizeof(struct efi_device_path_mac_addr);
-#ifdef CONFIG_BLK
 	case UCLASS_BLK:
 		switch (dev->parent->uclass->uc_drv->id) {
 #ifdef CONFIG_IDE
@@ -511,12 +509,12 @@ __maybe_unused static unsigned int dp_size(struct udevice *dev)
 			return dp_size(dev->parent) +
 				sizeof(struct efi_device_path_atapi);
 #endif
-#if defined(CONFIG_SCSI) && defined(CONFIG_DM_SCSI)
+#if defined(CONFIG_SCSI)
 		case UCLASS_SCSI:
 			return dp_size(dev->parent) +
 				sizeof(struct efi_device_path_scsi);
 #endif
-#if defined(CONFIG_DM_MMC) && defined(CONFIG_MMC)
+#if defined(CONFIG_MMC)
 		case UCLASS_MMC:
 			return dp_size(dev->parent) +
 				sizeof(struct efi_device_path_sd_mmc_path);
@@ -554,8 +552,7 @@ __maybe_unused static unsigned int dp_size(struct udevice *dev)
 		default:
 			return dp_size(dev->parent);
 		}
-#endif
-#if defined(CONFIG_DM_MMC) && defined(CONFIG_MMC)
+#if defined(CONFIG_MMC)
 	case UCLASS_MMC:
 		return dp_size(dev->parent) +
 			sizeof(struct efi_device_path_sd_mmc_path);
@@ -590,7 +587,7 @@ __maybe_unused static void *dp_fill(void *buf, struct udevice *dev)
 		*vdp = ROOT;
 		return &vdp[1];
 	}
-#ifdef CONFIG_DM_ETH
+#ifdef CONFIG_NET
 	case UCLASS_ETH: {
 		struct efi_device_path_mac_addr *dp =
 			dp_fill(buf, dev->parent);
@@ -607,7 +604,6 @@ __maybe_unused static void *dp_fill(void *buf, struct udevice *dev)
 		return &dp[1];
 	}
 #endif
-#ifdef CONFIG_BLK
 	case UCLASS_BLK:
 		switch (dev->parent->uclass->uc_drv->id) {
 #ifdef CONFIG_SANDBOX
@@ -662,7 +658,7 @@ __maybe_unused static void *dp_fill(void *buf, struct udevice *dev)
 			return &dp[1];
 			}
 #endif
-#if defined(CONFIG_SCSI) && defined(CONFIG_DM_SCSI)
+#if defined(CONFIG_SCSI)
 		case UCLASS_SCSI: {
 			struct efi_device_path_scsi *dp =
 				dp_fill(buf, dev->parent);
@@ -676,7 +672,7 @@ __maybe_unused static void *dp_fill(void *buf, struct udevice *dev)
 			return &dp[1];
 			}
 #endif
-#if defined(CONFIG_DM_MMC) && defined(CONFIG_MMC)
+#if defined(CONFIG_MMC)
 		case UCLASS_MMC: {
 			struct efi_device_path_sd_mmc_path *sddp =
 				dp_fill(buf, dev->parent);
@@ -727,8 +723,7 @@ __maybe_unused static void *dp_fill(void *buf, struct udevice *dev)
 			      dev->name, dev->parent->uclass->uc_drv->id);
 			return dp_fill(buf, dev->parent);
 		}
-#endif
-#if defined(CONFIG_DM_MMC) && defined(CONFIG_MMC)
+#if defined(CONFIG_MMC)
 	case UCLASS_MMC: {
 		struct efi_device_path_sd_mmc_path *sddp =
 			dp_fill(buf, dev->parent);
@@ -770,24 +765,18 @@ __maybe_unused static void *dp_fill(void *buf, struct udevice *dev)
 		return dp_fill(buf, dev->parent);
 	}
 }
-#endif
 
 static unsigned dp_part_size(struct blk_desc *desc, int part)
 {
 	unsigned dpsize;
+	struct udevice *dev;
+	int ret;
 
-#ifdef CONFIG_BLK
-	{
-		struct udevice *dev;
-		int ret = blk_find_device(desc->if_type, desc->devnum, &dev);
+	ret = blk_find_device(desc->if_type, desc->devnum, &dev);
 
-		if (ret)
-			dev = desc->bdev->parent;
-		dpsize = dp_size(dev);
-	}
-#else
-	dpsize = sizeof(ROOT) + sizeof(struct efi_device_path_usb);
-#endif
+	if (ret)
+		dev = desc->bdev->parent;
+	dpsize = dp_size(dev);
 
 	if (part == 0) /* the actual disk, not a partition */
 		return dpsize;
@@ -877,36 +866,14 @@ static void *dp_part_node(void *buf, struct blk_desc *desc, int part)
  */
 static void *dp_part_fill(void *buf, struct blk_desc *desc, int part)
 {
-#ifdef CONFIG_BLK
-	{
-		struct udevice *dev;
-		int ret = blk_find_device(desc->if_type, desc->devnum, &dev);
+	struct udevice *dev;
+	int ret;
 
-		if (ret)
-			dev = desc->bdev->parent;
-		buf = dp_fill(buf, dev);
-	}
-#else
-	/*
-	 * We *could* make a more accurate path, by looking at if_type
-	 * and handling all the different cases like we do for non-
-	 * legacy (i.e. CONFIG_BLK=y) case. But most important thing
-	 * is just to have a unique device-path for if_type+devnum.
-	 * So map things to a fictitious USB device.
-	 */
-	struct efi_device_path_usb *udp;
-
-	memcpy(buf, &ROOT, sizeof(ROOT));
-	buf += sizeof(ROOT);
-
-	udp = buf;
-	udp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
-	udp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_USB;
-	udp->dp.length = sizeof(*udp);
-	udp->parent_port_number = desc->if_type;
-	udp->usb_interface = desc->devnum;
-	buf = &udp[1];
-#endif
+	ret = blk_find_device(desc->if_type, desc->devnum, &dev);
+
+	if (ret)
+		dev = desc->bdev->parent;
+	buf = dp_fill(buf, dev);
 
 	if (part == 0) /* the actual disk, not a partition */
 		return buf;
@@ -1051,39 +1018,18 @@ struct efi_device_path *efi_dp_from_uart(void)
 #ifdef CONFIG_NET
 struct efi_device_path *efi_dp_from_eth(void)
 {
-#ifndef CONFIG_DM_ETH
-	struct efi_device_path_mac_addr *ndp;
-#endif
 	void *buf, *start;
 	unsigned dpsize = 0;
 
 	assert(eth_get_dev());
 
-#ifdef CONFIG_DM_ETH
 	dpsize += dp_size(eth_get_dev());
-#else
-	dpsize += sizeof(ROOT);
-	dpsize += sizeof(*ndp);
-#endif
 
 	start = buf = dp_alloc(dpsize + sizeof(END));
 	if (!buf)
 		return NULL;
 
-#ifdef CONFIG_DM_ETH
 	buf = dp_fill(buf, eth_get_dev());
-#else
-	memcpy(buf, &ROOT, sizeof(ROOT));
-	buf += sizeof(ROOT);
-
-	ndp = buf;
-	ndp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
-	ndp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR;
-	ndp->dp.length = sizeof(*ndp);
-	ndp->if_type = 1; /* Ethernet */
-	memcpy(ndp->mac.addr, eth_get_ethaddr(), ARP_HLEN);
-	buf = &ndp[1];
-#endif
 
 	*((struct efi_device_path *)buf) = END;
 
diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c
index 988907ecb91..ef8b5c88ff9 100644
--- a/lib/efi_loader/efi_disk.c
+++ b/lib/efi_loader/efi_disk.c
@@ -555,7 +555,6 @@ efi_status_t efi_disk_register(void)
 	struct efi_disk_obj *disk;
 	int disks = 0;
 	efi_status_t ret;
-#ifdef CONFIG_BLK
 	struct udevice *dev;
 
 	for (uclass_first_device_check(UCLASS_BLK, &dev); dev;
@@ -583,54 +582,7 @@ efi_status_t efi_disk_register(void)
 					&disk->header, desc, if_typename,
 					desc->devnum, dev->name);
 	}
-#else
-	int i, if_type;
 
-	/* Search for all available disk devices */
-	for (if_type = 0; if_type < IF_TYPE_COUNT; if_type++) {
-		const struct blk_driver *cur_drvr;
-		const char *if_typename;
-
-		cur_drvr = blk_driver_lookup_type(if_type);
-		if (!cur_drvr)
-			continue;
-
-		if_typename = cur_drvr->if_typename;
-		log_info("Scanning disks on %s...\n", if_typename);
-		for (i = 0; i < 4; i++) {
-			struct blk_desc *desc;
-			char devname[32] = { 0 }; /* dp->str is u16[32] long */
-
-			desc = blk_get_devnum_by_type(if_type, i);
-			if (!desc)
-				continue;
-			if (desc->type == DEV_TYPE_UNKNOWN)
-				continue;
-
-			snprintf(devname, sizeof(devname), "%s%d",
-				 if_typename, i);
-
-			/* Add block device for the full device */
-			ret = efi_disk_add_dev(NULL, NULL, if_typename, desc,
-					       i, NULL, 0, &disk);
-			if (ret == EFI_NOT_READY) {
-				log_notice("Disk %s not ready\n", devname);
-				continue;
-			}
-			if (ret) {
-				log_err("ERROR: failure to add disk device %s, r = %lu\n",
-					devname, ret & ~EFI_ERROR_MASK);
-				return ret;
-			}
-			disks++;
-
-			/* Partitions show up as block devices in EFI */
-			disks += efi_disk_create_partitions
-						(&disk->header, desc,
-						 if_typename, i, devname);
-		}
-	}
-#endif
 	log_info("Found %d disks\n", disks);
 
 	return EFI_SUCCESS;
-- 
2.33.0.685.g46640cef36-goog