]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - include/config_distro_bootcmd.h
tpm: Move the I2C TPM code into one file
[karo-tx-uboot.git] / include / config_distro_bootcmd.h
index 49674f4537541c6014cb2259976c21ee36dab2d3..3a360ca49a16159e4e4f8793ca419f9ab2b39150 100644 (file)
 #ifndef _CONFIG_CMD_DISTRO_BOOTCMD_H
 #define _CONFIG_CMD_DISTRO_BOOTCMD_H
 
+/*
+ * A note on error handling: It is possible for BOOT_TARGET_DEVICES to
+ * reference a device that is not enabled in the U-Boot configuration, e.g.
+ * it may include MMC in the list without CONFIG_CMD_MMC being enabled. Given
+ * that BOOT_TARGET_DEVICES is a macro that's expanded by the C pre-processor
+ * at compile time, it's not  possible to detect and report such problems via
+ * a simple #ifdef/#error combination. Still, the code needs to report errors.
+ * The best way I've found to do this is to make BOOT_TARGET_DEVICES expand to
+ * reference a non-existent symbol, and have the name of that symbol encode
+ * the error message. Consequently, this file contains references to e.g.
+ * BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC. Given the
+ * prevalence of capitals here, this looks like a pre-processor macro and
+ * hence seems like it should be all capitals, but it's really an error
+ * message that includes some other pre-processor symbols in the text.
+ */
+
+/* We need the part command */
+#define CONFIG_PARTITION_UUIDS
+#define CONFIG_CMD_PART
+
 #define BOOTENV_SHARED_BLKDEV_BODY(devtypel) \
                "if " #devtypel " dev ${devnum}; then " \
                        "setenv devtype " #devtypel "; " \
 #define BOOTENV_DEV_NAME_BLKDEV(devtypeu, devtypel, instance) \
        #devtypel #instance " "
 
+#ifdef CONFIG_SANDBOX
+#define BOOTENV_SHARED_HOST    BOOTENV_SHARED_BLKDEV(host)
+#define BOOTENV_DEV_HOST       BOOTENV_DEV_BLKDEV
+#define BOOTENV_DEV_NAME_HOST  BOOTENV_DEV_NAME_BLKDEV
+#else
+#define BOOTENV_SHARED_HOST
+#define BOOTENV_DEV_HOST \
+       BOOT_TARGET_DEVICES_references_HOST_without_CONFIG_SANDBOX
+#define BOOTENV_DEV_NAME_HOST \
+       BOOT_TARGET_DEVICES_references_HOST_without_CONFIG_SANDBOX
+#endif
+
 #ifdef CONFIG_CMD_MMC
 #define BOOTENV_SHARED_MMC     BOOTENV_SHARED_BLKDEV(mmc)
 #define BOOTENV_DEV_MMC                BOOTENV_DEV_BLKDEV
 #define BOOTENV_DEV(devtypeu, devtypel, instance) \
        BOOTENV_DEV_##devtypeu(devtypeu, devtypel, instance)
 #define BOOTENV \
+       BOOTENV_SHARED_HOST \
        BOOTENV_SHARED_MMC \
        BOOTENV_SHARED_USB \
        BOOTENV_SHARED_SATA \
                "done\0"                                                  \
        \
        "scan_dev_for_boot_part="                                         \
-               "part list ${devtype} ${devnum} devplist; "               \
+               "part list ${devtype} ${devnum} -bootable devplist; "     \
+               "env exists devplist || setenv devplist 1; "              \
                "for bootpart in ${devplist}; do "                        \
                        "if fstype ${devtype} ${devnum}:${bootpart} "     \
                                        "bootfstype; then "               \