diff options
| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2017-12-11 12:56:44 +0100 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2018-01-22 23:09:12 +0100 |
| commit | af3106a12dd5d3a315f9f68b5fc0002c09f54d54 (patch) | |
| tree | 8cbd0bdcbf3c8e63a15052de050d93c97d86ea02 /lib/efi_loader/efi_device_path.c | |
| parent | 2bc61b83522b021113028ee19bf4f2a460be4b44 (diff) | |
efi_loader: support device path for IDE and SCSI disks
Correctly create the device path for IDE and SCSI disks.
Support for SATA remains to be done in a future patch.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'lib/efi_loader/efi_device_path.c')
| -rw-r--r-- | lib/efi_loader/efi_device_path.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c index 3974fcc624..2a8efea6e7 100644 --- a/lib/efi_loader/efi_device_path.c +++ b/lib/efi_loader/efi_device_path.c @@ -297,6 +297,23 @@ static unsigned dp_size(struct udevice *dev) case UCLASS_SIMPLE_BUS: /* stop traversing parents at this point: */ return sizeof(ROOT); +#ifdef CONFIG_BLK + case UCLASS_BLK: + switch (dev->parent->uclass->uc_drv->id) { +#ifdef CONFIG_IDE + case UCLASS_IDE: + return dp_size(dev->parent) + + sizeof(struct efi_device_path_atapi); +#endif +#if defined(CONFIG_SCSI) && defined(CONFIG_DM_SCSI) + case UCLASS_SCSI: + return dp_size(dev->parent) + + sizeof(struct efi_device_path_scsi); +#endif + default: + return dp_size(dev->parent); + } +#endif case UCLASS_MMC: return dp_size(dev->parent) + sizeof(struct efi_device_path_sd_mmc_path); @@ -310,6 +327,13 @@ static unsigned dp_size(struct udevice *dev) } } +/* + * Recursively build a device path. + * + * @buf pointer to the end of the device path + * @dev device + * @return pointer to the end of the device path + */ static void *dp_fill(void *buf, struct udevice *dev) { if (!dev || !dev->driver) @@ -323,6 +347,46 @@ static void *dp_fill(void *buf, struct udevice *dev) *vdp = ROOT; return &vdp[1]; } +#ifdef CONFIG_BLK + case UCLASS_BLK: + switch (dev->parent->uclass->uc_drv->id) { +#ifdef CONFIG_IDE + case UCLASS_IDE: { + struct efi_device_path_atapi *dp = + dp_fill(buf, dev->parent); + struct blk_desc *desc = dev_get_uclass_platdata(dev); + + dp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE; + dp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_ATAPI; + dp->dp.length = sizeof(*dp); + dp->logical_unit_number = desc->devnum; + dp->primary_secondary = IDE_BUS(desc->devnum); + dp->slave_master = desc->devnum % + (CONFIG_SYS_IDE_MAXDEVICE / + CONFIG_SYS_IDE_MAXBUS); + return &dp[1]; + } +#endif +#if defined(CONFIG_SCSI) && defined(CONFIG_DM_SCSI) + case UCLASS_SCSI: { + struct efi_device_path_scsi *dp = + dp_fill(buf, dev->parent); + struct blk_desc *desc = dev_get_uclass_platdata(dev); + + dp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE; + dp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_SCSI; + dp->dp.length = sizeof(*dp); + dp->logical_unit_number = desc->lun; + dp->target_id = desc->target; + return &dp[1]; + } +#endif + default: + printf("unhandled parent class: %s (%u)\n", + dev->name, dev->driver->id); + return dp_fill(buf, dev->parent); + } +#endif #if defined(CONFIG_DM_MMC) && defined(CONFIG_MMC) case UCLASS_MMC: { struct efi_device_path_sd_mmc_path *sddp = |