Merge patch series "Implement ACPI on aarch64"

Patrick Rudolph <[email protected]> says:

Based on the existing work done by Simon Glass this series adds
support for booting aarch64 devices using ACPI only.
As first target QEMU SBSA support is added, which relies on ACPI
only to boot an OS. As secondary target the Raspberry Pi4 was used,
which is broadly available and allows easy testing of the proposed
solution.

The series is split into ACPI cleanups and code movements, adding
Arm specific ACPI tables and finally SoC and mainboard related
changes to boot a Linux on the QEMU SBSA and RPi4. Currently only the
mandatory ACPI tables are supported, allowing to boot into Linux
without errors.

The QEMU SBSA support is feature complete and provides the same
functionality as the EDK2 implementation.

The changes were tested on real hardware as well on QEMU v9.0:

qemu-system-aarch64 -machine sbsa-ref -nographic -cpu cortex-a57 \
                    -pflash secure-world.rom \
                    -pflash unsecure-world.rom

qemu-system-aarch64 -machine raspi4b -kernel u-boot.bin -cpu cortex-a72 \
-smp 4 -m 2G -drive file=raspbian.img,format=raw,index=0 \
-dtb bcm2711-rpi-4-b.dtb -nographic

Tested against FWTS V24.03.00.

Known issues:
- The QEMU rpi4 support is currently limited as it doesn't emulate PCI,
  USB or ethernet devices!
- The SMP bringup doesn't work on RPi4, but works in QEMU (Possibly
  cache related).
- PCI on RPI4 isn't working on real hardware since the pcie_brcmstb
  Linux kernel module doesn't support ACPI yet.

Link: https://lore.kernel.org/r/[email protected]

3 files changed, 17 insertions, 14 deletions

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 6cca561f974..4fbb63a148a 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -78,14 +78,16 @@ config MTK_AHCI
 	  Enable this driver to support Sata devices through
 	  Mediatek AHCI controller (e.g. MT7622).
 
-config AHCI_MVEBU
-	bool "Marvell EBU AHCI SATA support"
-	depends on ARCH_MVEBU || ARCH_OCTEON
+config AHCI_GENERIC
+	bool "Generic AHCI SATA support"
+	depends on OF_CONTROL
 	select SCSI_AHCI
 	select SCSI
 	help
-	  This option enables support for the Marvell EBU SoC's
-	  onboard AHCI SATA.
+	  This option enables support for generic onboard AHCI SATA controller
+	  that do not need platform specific quirks, like emulated devices,
+	  Marvell EBU SoC's onboard AHCI SATA controllers or Cavium's Octeon
+	  7130 AHCI controllers.
 
 	  If unsure, say N.
 
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index ee10c4445b0..69fa9b707e0 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -14,6 +14,6 @@ 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
-obj-$(CONFIG_AHCI_MVEBU) += ahci_mvebu.o
+obj-$(CONFIG_AHCI_GENERIC) += ahci_generic.o
 obj-$(CONFIG_SUNXI_AHCI) += ahci_sunxi.o
 obj-$(CONFIG_MTK_AHCI) += mtk_ahci.o
diff --git a/drivers/ata/ahci_mvebu.c b/drivers/ata/ahci_generic.c
index f6e2d6bee45..6e5a6cbafd8 100644
--- a/drivers/ata/ahci_mvebu.c
+++ b/drivers/ata/ahci_generic.c
@@ -16,7 +16,7 @@ __weak int board_ahci_enable(void)
 	return 0;
 }
 
-static int mvebu_ahci_bind(struct udevice *dev)
+static int generic_ahci_bind(struct udevice *dev)
 {
 	struct udevice *scsi_dev;
 	int ret;
@@ -30,7 +30,7 @@ static int mvebu_ahci_bind(struct udevice *dev)
 	return 0;
 }
 
-static int mvebu_ahci_probe(struct udevice *dev)
+static int generic_ahci_probe(struct udevice *dev)
 {
 	/*
 	 * Board specific SATA / AHCI enable code, e.g. enable the
@@ -43,18 +43,19 @@ static int mvebu_ahci_probe(struct udevice *dev)
 	return 0;
 }
 
-static const struct udevice_id mvebu_ahci_ids[] = {
+static const struct udevice_id generic_ahci_ids[] = {
 	{ .compatible = "marvell,armada-380-ahci" },
 	{ .compatible = "marvell,armada-3700-ahci" },
 	{ .compatible = "marvell,armada-8k-ahci" },
 	{ .compatible = "cavium,octeon-7130-ahci" },
+	{ .compatible = "generic-ahci" },
 	{ }
 };
 
-U_BOOT_DRIVER(ahci_mvebu_drv) = {
-	.name		= "ahci_mvebu",
+U_BOOT_DRIVER(ahci_generic_drv) = {
+	.name		= "ahci_generic",
 	.id		= UCLASS_AHCI,
-	.of_match	= mvebu_ahci_ids,
-	.bind		= mvebu_ahci_bind,
-	.probe		= mvebu_ahci_probe,
+	.of_match	= generic_ahci_ids,
+	.bind		= generic_ahci_bind,
+	.probe		= generic_ahci_probe,
 };