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authorBin Meng <bmeng.cn@gmail.com>2017-07-30 19:23:59 -0700
committerBin Meng <bmeng.cn@gmail.com>2017-08-01 20:17:02 +0800
commita5c680fe1042d2e13efeb12af076f4bd1ad1b82d (patch)
tree9f332d771f60db97ce76e2fe3333756af1226060
parent6461f45b7194b4b345e2f5991c3f75c5ed36f238 (diff)
downloadu-boot-a5c680fe1042d2e13efeb12af076f4bd1ad1b82d.tar.gz
dm: scsi: Add a generic PCI-based AHCI driver
This adds support for PCI-based AHCI controller based on DM SCSI. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
-rw-r--r--drivers/ata/Kconfig6
-rw-r--r--drivers/ata/Makefile1
-rw-r--r--drivers/ata/ahci-pci.c42
3 files changed, 49 insertions, 0 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 6427f1b94a..db051605f5 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -40,6 +40,12 @@ config DM_SCSI
menu "SATA/SCSI device support"
+config AHCI_PCI
+ bool "Support for PCI-based AHCI controller"
+ depends on DM_SCSI
+ help
+ Enables support for the PCI-based AHCI controller.
+
config SATA_CEVA
bool "Ceva Sata controller"
depends on AHCI
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index c48184c4c3..4e2de93025 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -7,6 +7,7 @@
obj-$(CONFIG_DWC_AHCI) += dwc_ahci.o
obj-$(CONFIG_AHCI) += ahci-uclass.o
+obj-$(CONFIG_AHCI_PCI) += ahci-pci.o
obj-$(CONFIG_SCSI_AHCI) += ahci.o
obj-$(CONFIG_DWC_AHSATA) += dwc_ahsata.o
obj-$(CONFIG_FSL_SATA) += fsl_sata.o
diff --git a/drivers/ata/ahci-pci.c b/drivers/ata/ahci-pci.c
new file mode 100644
index 0000000000..f46fad899e
--- /dev/null
+++ b/drivers/ata/ahci-pci.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2017, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <ahci.h>
+#include <dm.h>
+#include <pci.h>
+
+static int ahci_pci_bind(struct udevice *dev)
+{
+ struct udevice *scsi_dev;
+
+ return ahci_bind_scsi(dev, &scsi_dev);
+}
+
+static int ahci_pci_probe(struct udevice *dev)
+{
+ return ahci_probe_scsi(dev);
+}
+
+static const struct udevice_id ahci_pci_ids[] = {
+ { .compatible = "ahci-pci" },
+ { }
+};
+
+U_BOOT_DRIVER(ahci_pci) = {
+ .name = "ahci_pci",
+ .id = UCLASS_AHCI,
+ .of_match = ahci_pci_ids,
+ .bind = ahci_pci_bind,
+ .probe = ahci_pci_probe,
+};
+
+static struct pci_device_id ahci_pci_supported[] = {
+ { PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, ~0) },
+ {},
+};
+
+U_BOOT_PCI_DEVICE(ahci_pci, ahci_pci_supported);