arm: juno: enable USB

The Juno board features a standard compliant EHCI/OHCI USB host
controller pair, which we can just enable.
The platform data is taken from the device tree.

This allows to use USB mass storage (the only storage on a Juno r0)
for loading.

At least on my board USB seems a bit flaky, I need two "usb reset"
sequences after the "usb start" to detect an USB hard drive.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 7c58912..0d46308 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1169,6 +1169,10 @@ config TARGET_VEXPRESS64_JUNO
        select DM_SERIAL
        select ARM_PSCI_FW
        select PSCI_RESET
+       select DM
+       select BLK
+       select USB
+       select DM_USB
 
 config TARGET_LS2080A_EMU
        bool "Support ls2080a_emu"

diff --git a/configs/vexpress_aemv8a_juno_defconfig b/configs/vexpress_aemv8a_juno_defconfig
index 6cb21e7..ca7aa5a 100644 (file)
--- a/configs/vexpress_aemv8a_juno_defconfig
+++ b/configs/vexpress_aemv8a_juno_defconfig
@@ -27,6 +27,7 @@ CONFIG_CMD_ARMFLASH=y
 CONFIG_CMD_CACHE=y
 # CONFIG_CMD_MISC is not set
 CONFIG_CMD_UBI=y
+CONFIG_CMD_USB=y
 # CONFIG_ISO_PARTITION is not set
 # CONFIG_EFI_PARTITION is not set
 CONFIG_ENV_IS_IN_FLASH=y
@@ -41,3 +42,7 @@ CONFIG_SYS_FLASH_CFI=y
 CONFIG_SMC911X=y
 CONFIG_SMC911X_BASE=0x018000000
 CONFIG_SMC911X_32_BIT=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_GENERIC=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_GENERIC=y

diff --git a/include/configs/vexpress_aemv8a.h b/include/configs/vexpress_aemv8a.h
index 3c85c93..08ad368 100644 (file)
--- a/include/configs/vexpress_aemv8a.h
+++ b/include/configs/vexpress_aemv8a.h
@@ -219,6 +219,11 @@
 #define CONFIG_SYS_FLASH_CFI_WIDTH     FLASH_CFI_32BIT
 #define CONFIG_SYS_MAX_FLASH_BANKS     1
 
+#ifdef CONFIG_USB_EHCI_HCD
+#define CONFIG_USB_OHCI_NEW
+#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 1
+#endif
+
 #define CONFIG_SYS_FLASH_EMPTY_INFO    /* flinfo indicates empty blocks */
 #define FLASH_MAX_SECTOR_SIZE          0x00040000