[PATCH v3 9/9] configs: Enable support for the XHCI controller on RPI4 board (ARM 64-bit)

[Sylwester Nawrocki]

This requires enabling BRCMSTB PCIe and XHCI_PCI drivers as well as PCI
and USB commands. To get it working one has to call the following commands:
"pci enum; usb start;", thus such commands have been added to the default
"preboot" environment variable. One has to update their environment if it
is already configured to get this feature working out of the box.

Signed-off-by: Marek Szyprowski <m.szyprowski at samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki at samsung.com>
---
Changes since v2:
 - rpi_4_32b_defconfig, rpi_4_defconfig changes moved to separate
   patch
Changes since v1:
 - removed unneeded CONFIG_XHCI_64BIT_DWORD_ACCESS_ONLY entry.

Changes since RFC:
 - none.
---
 configs/rpi_arm64_defconfig | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/configs/rpi_arm64_defconfig b/configs/rpi_arm64_defconfig
index fea86be..f12d1e3 100644
--- a/configs/rpi_arm64_defconfig
+++ b/configs/rpi_arm64_defconfig
@@ -7,13 +7,14 @@ CONFIG_NR_DRAM_BANKS=2
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_USE_PREBOOT=y
-CONFIG_PREBOOT="usb start"
+CONFIG_PREBOOT="pci enum; usb start;"
 CONFIG_MISC_INIT_R=y
 # CONFIG_DISPLAY_CPUINFO is not set
 # CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_SYS_PROMPT="U-Boot> "
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_PCI=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_FS_UUID=y
 CONFIG_OF_BOARD=y
@@ -26,11 +27,16 @@ CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_BCM2835=y
 CONFIG_DM_ETH=y
 CONFIG_BCMGENET=y
+CONFIG_PCI=y
+CONFIG_DM_PCI=y
+CONFIG_PCI_BRCMSTB=y
 CONFIG_PINCTRL=y
 # CONFIG_PINCTRL_GENERIC is not set
 # CONFIG_REQUIRE_SERIAL_CONSOLE is not set
 CONFIG_USB=y
 CONFIG_DM_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_PCI=y
 CONFIG_USB_DWC2=y
 CONFIG_USB_KEYBOARD=y
 CONFIG_USB_HOST_ETHER=y
-- 
2.7.4