Implement a SATA uclass that can represent a SATA controller.
Signed-off-by: Mugunthan V N <mugunthan...@ti.com>
---
drivers/block/Kconfig | 10 +++++++
drivers/block/Makefile | 2 ++
drivers/block/sata-uclass.c | 69 +++++++++++++++++++++++++++++++++++++++++++++
include/dm/uclass-id.h | 1 +
4 files changed, 82 insertions(+)
create mode 100644 drivers/block/sata-uclass.c
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index e69de29..44d8a6b 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -0,0 +1,10 @@
+menu "SATA Device Support"
+
+config SATA
+ bool "Enable driver model for SATA drivers"
+ depends on DM
+ help
+ Enable driver model for block devices like SCSI. It uses the
+ same API as block, but now implemented by the uclass.
+
+endmenu
diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index eb8bda9..c2dae17 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -5,6 +5,8 @@
# SPDX-License-Identifier: GPL-2.0+
#
+obj-$(CONFIG_SATA) += sata-uclass.o
+
obj-$(CONFIG_SCSI_AHCI) += ahci.o
obj-$(CONFIG_DWC_AHSATA) += dwc_ahsata.o
obj-$(CONFIG_FSL_SATA) += fsl_sata.o
diff --git a/drivers/block/sata-uclass.c b/drivers/block/sata-uclass.c
new file mode 100644
index 0000000..62773b6
--- /dev/null
+++ b/drivers/block/sata-uclass.c
@@ -0,0 +1,69 @@
+/*
+ * SATA device U-Class driver
+ *
+ * (C) Copyright 2016
+ * Texas Instruments Incorporated, <www.ti.com>
+ *
+ * Author: Mugunthan V N <mugunthan...@ti.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/uclass-internal.h>
+#include <dm/device-internal.h>
+#include <errno.h>
+#include <scsi.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * struct mmc_uclass_priv - Holds information about a device used by the uclass
+ */
+struct sata_uclass_priv {
+ struct block_dev_desc_t *block_dev;
+};
+
+int scsi_get_device(int index, struct udevice **devp)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = uclass_find_device(UCLASS_SATA, index, &dev);
+ if (ret || !dev) {
+ printf("%d device not found\n", index);
+ return ret;
+ }
+
+ ret = device_probe(dev);
+ if (ret) {
+ error("device probe error\n");
+ return ret;
+ }
+
+ *devp = dev;
+
+ return ret;
+}
+
+void scsi_init(void)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = scsi_get_device(0, &dev);
+ if (ret || !dev) {
+ error("scsi device not found\n");
+ return;
+ }
+
+ scsi_scan(1);
+}
+
+UCLASS_DRIVER(sata) = {
+ .id = UCLASS_SATA,
+ .name = "sata",
+ .flags = DM_UC_FLAG_SEQ_ALIAS,
+ .per_device_auto_alloc_size = sizeof(struct sata_uclass_priv),
+};
diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h
index 27fa0b6..80977ca 100644
--- a/include/dm/uclass-id.h
+++ b/include/dm/uclass-id.h
@@ -55,6 +55,7 @@ enum uclass_id {
UCLASS_RESET, /* Reset device */
UCLASS_REMOTEPROC, /* Remote Processor device */
UCLASS_RTC, /* Real time clock device */
+ UCLASS_SATA, /* SATA devices */
UCLASS_SERIAL, /* Serial UART */
UCLASS_SPI, /* SPI bus */
UCLASS_SPI_FLASH, /* SPI flash */
--
2.7.0.rc3
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