bootstd: sata: Add bootstd support for ahci sata
Add ahci sata bootdev and corresponding hunting function.
Signed-off-by: Tony Dinh <mibodhi@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index 6e30180..0b6f910 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -10,7 +10,7 @@
obj-$(CONFIG_DWC_AHSATA) += dwc_ahsata.o
obj-$(CONFIG_FSL_SATA) += fsl_sata.o
obj-$(CONFIG_LIBATA) += libata.o
-obj-$(CONFIG_SATA) += sata.o
+obj-$(CONFIG_SATA) += sata.o sata_bootdev.o
obj-$(CONFIG_SATA_CEVA) += sata_ceva.o
obj-$(CONFIG_SATA_MV) += sata_mv.o
obj-$(CONFIG_SATA_SIL) += sata_sil.o
diff --git a/drivers/ata/sata.c b/drivers/ata/sata.c
index ce3e9b5..f126b84 100644
--- a/drivers/ata/sata.c
+++ b/drivers/ata/sata.c
@@ -15,6 +15,8 @@
#include <dm.h>
#include <part.h>
#include <sata.h>
+#include <dm/device-internal.h>
+#include <dm/uclass-internal.h>
#ifndef CONFIG_AHCI
struct blk_desc sata_dev_desc[CONFIG_SYS_SATA_MAX_DEVICE];
@@ -50,6 +52,36 @@
return ops->scan(dev);
}
+int sata_rescan(bool verbose)
+{
+ int ret;
+ struct udevice *dev;
+
+ if (verbose)
+ printf("Removing devices on SATA bus...\n");
+
+ blk_unbind_all(UCLASS_AHCI);
+
+ ret = uclass_find_first_device(UCLASS_AHCI, &dev);
+ if (ret || !dev) {
+ printf("Cannot find SATA device (err=%d)\n", ret);
+ return -ENOSYS;
+ }
+
+ ret = device_remove(dev, DM_REMOVE_NORMAL);
+ if (ret) {
+ printf("Cannot remove SATA device '%s' (err=%d)\n", dev->name, ret);
+ return -ENOSYS;
+ }
+
+ if (verbose)
+ printf("Rescanning SATA bus for devices...\n");
+
+ ret = uclass_probe_all(UCLASS_AHCI);
+
+ return ret;
+}
+
#ifndef CONFIG_AHCI
#ifdef CONFIG_PARTITIONS
struct blk_desc *sata_get_dev(int dev)
diff --git a/drivers/ata/sata_bootdev.c b/drivers/ata/sata_bootdev.c
new file mode 100644
index 0000000..f638493
--- /dev/null
+++ b/drivers/ata/sata_bootdev.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Bootdev for sata
+ *
+ * Copyright 2023 Tony Dinh <mibodhi@gmail.com>
+ */
+
+#include <common.h>
+#include <ahci.h>
+#include <bootdev.h>
+#include <dm.h>
+#include <init.h>
+#include <sata.h>
+
+static int sata_bootdev_bind(struct udevice *dev)
+{
+ struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
+
+ ucp->prio = BOOTDEVP_4_SCAN_FAST;
+
+ return 0;
+}
+
+static int sata_bootdev_hunt(struct bootdev_hunter *info, bool show)
+{
+ int ret;
+
+ if (IS_ENABLED(CONFIG_PCI)) {
+ ret = pci_init();
+ if (ret)
+ return ret;
+ }
+
+ ret = sata_rescan(true);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+struct bootdev_ops sata_bootdev_ops = {
+};
+
+static const struct udevice_id sata_bootdev_ids[] = {
+ { .compatible = "u-boot,bootdev-sata" },
+ { }
+};
+
+U_BOOT_DRIVER(sata_bootdev) = {
+ .name = "sata_bootdev",
+ .id = UCLASS_BOOTDEV,
+ .ops = &sata_bootdev_ops,
+ .bind = sata_bootdev_bind,
+ .of_match = sata_bootdev_ids,
+};
+
+BOOTDEV_HUNTER(sata_bootdev_hunter) = {
+ .prio = BOOTDEVP_4_SCAN_FAST,
+ .uclass = UCLASS_AHCI,
+ .hunt = sata_bootdev_hunt,
+ .drv = DM_DRIVER_REF(sata_bootdev),
+};