[PATCH v3 14/16] x86: nvme: coreboot: Enable NVMe

[Simon Glass]

Enable support for NVMe storage devices. Update the driver to enable the
bus master bit, since coreboot does not do that automatically.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

(no changes since v2)

Changes in v2:
- Drop patch 'usb: Quieten a debug message' since it was fixed elsewhere
- Drop patch 'x86: coreboot: Use a memory-mapped UART' (not needed)

 configs/coreboot_defconfig | 3 +++
 drivers/nvme/nvme_pci.c    | 8 ++++++++
 2 files changed, 11 insertions(+)

diff --git a/configs/coreboot_defconfig b/configs/coreboot_defconfig
index 3030e5bf93b4..8bb744e6e84d 100644
--- a/configs/coreboot_defconfig
+++ b/configs/coreboot_defconfig
@@ -59,6 +59,9 @@ CONFIG_SYS_ATA_ALT_OFFSET=0
 CONFIG_ATAPI=y
 CONFIG_LBA48=y
 CONFIG_SYS_64BIT_LBA=y
+CONFIG_MISC=y
+CONFIG_NVMEM=y
+CONFIG_NVME_PCI=y
 # CONFIG_PCI_PNP is not set
 CONFIG_SOUND=y
 CONFIG_SOUND_I8254=y
diff --git a/drivers/nvme/nvme_pci.c b/drivers/nvme/nvme_pci.c
index 36bf9c5ffb73..dff19317943c 100644
--- a/drivers/nvme/nvme_pci.c
+++ b/drivers/nvme/nvme_pci.c
@@ -6,6 +6,7 @@
 
 #include <common.h>
 #include <dm.h>
+#include <init.h>
 #include <pci.h>
 #include "nvme.h"
 
@@ -30,6 +31,13 @@ static int nvme_probe(struct udevice *udev)
 	ndev->instance = trailing_strtol(udev->name);
 	ndev->bar = dm_pci_map_bar(udev, PCI_BASE_ADDRESS_0, 0, 0,
 				   PCI_REGION_TYPE, PCI_REGION_MEM);
+
+	if (!ll_boot_init()) {
+		/* Turn on bus-mastering */
+		dm_pci_clrset_config16(udev, PCI_COMMAND, 0,
+				       PCI_COMMAND_MASTER);
+	}
+
 	return nvme_init(udev);
 }
 
-- 
2.40.0.348.gf938b09366-goog