dm: Add support for scsi/sata based devices
All sata based drivers are bind and corresponding block
device is created. Based on this find_scsi_device() is able
to get back block device based on scsi_curr_dev pointer.
intr_scsi() is commented now but it can be replaced by calling
find_scsi_device() and scsi_scan().
scsi_dev_desc[] is commented out but common/scsi.c heavily depends on
it. That's why CONFIG_SYS_SCSI_MAX_DEVICE is hardcoded to 1 and symbol
is reassigned to a block description allocated by uclass.
There is only one block description by device now but it doesn't need to
be correct when more devices are present.
scsi_bind() ensures corresponding block device creation.
uclass post_probe (scsi_post_probe()) is doing low level init.
SCSI/SATA DM based drivers requires to have 64bit base address as
the first entry in platform data structure to setup mmio_base.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index fe5aa07..7b82ba6 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -19,6 +19,15 @@
operations at present. The block device interface has not been converted
to driver model.
+config DM_SCSI
+ bool "Support SCSI controllers with driver model"
+ depends on BLK
+ help
+ This option enables the SCSI (Small Computer System Interface) uclass
+ which supports SCSI and SATA HDDs. For every device configuration
+ (IDs/LUNs) a block device is created with RAW read/write and
+ filesystem support.
+
config BLOCK_CACHE
bool "Use block device cache"
default n
@@ -27,3 +36,7 @@
This is most useful when accessing filesystems under U-Boot since
it will prevent repeated reads from directory structures and other
filesystem data structures.
+
+menu "SATA/SCSI device support"
+
+endmenu