From e8a016b53731bba820246c9509ce8ef74c944560 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Thu, 8 Sep 2016 15:06:45 +0200 Subject: 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 Reviewed-by: Simon Glass --- drivers/block/scsi-uclass.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 drivers/block/scsi-uclass.c (limited to 'drivers/block/scsi-uclass.c') diff --git a/drivers/block/scsi-uclass.c b/drivers/block/scsi-uclass.c new file mode 100644 index 0000000..05da6cd --- /dev/null +++ b/drivers/block/scsi-uclass.c @@ -0,0 +1,27 @@ +/* + * Copyright (c) 2015 Google, Inc + * Written by Simon Glass + * Copyright (c) 2016 Xilinx, Inc + * Written by Michal Simek + * + * Based on ahci-uclass.c + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include + +static int scsi_post_probe(struct udevice *dev) +{ + debug("%s: device %p\n", __func__, dev); + scsi_low_level_init(0, dev); + return 0; +} + +UCLASS_DRIVER(scsi) = { + .id = UCLASS_SCSI, + .name = "scsi", + .post_probe = scsi_post_probe, +}; -- cgit v1.1