[U-Boot] [PATCH] axs103: add support of generic OHCI USB 1.1 controller

[Alexey Brodkin]

This commit adds support of USB 1.1 storage media on AXS103 board.
For some yet unknown reason USB 2.0 doesn't work on AXS103 board issuing
messages like this:
------------------------>8-------------------
AXS# usb start
starting USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... EHCI timed out on TD - token=0x80008c80
unable to get device descriptor (error=-1)
1 USB Device(s) found
------------------------>8-------------------

As a work-around we're falling back to USB 1.1.
Indeed it is much slower but at least USB storage devices are usable on
AXS103.

Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
Cc: Marek Vasut <marex at denx.de>
Cc: Simon Glass <sjg at chromium.org>
---
 arch/arc/dts/axs10x.dts  | 6 ++++++
 configs/axs103_defconfig | 3 +--
 include/configs/axs101.h | 6 ++++++
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/arch/arc/dts/axs10x.dts b/arch/arc/dts/axs10x.dts
index 80e6d6b..391d067 100644
--- a/arch/arc/dts/axs10x.dts
+++ b/arch/arc/dts/axs10x.dts
@@ -48,4 +48,10 @@
 		reg = < 0xe0040000 0x100 >;
 		interrupts = < 8 >;
 	};
+
+	ohci at 0xe0060000 {
+		compatible = "generic-ohci";
+		reg = < 0xe0060000 0x100 >;
+		interrupts = < 8 >;
+	};
 };
diff --git a/configs/axs103_defconfig b/configs/axs103_defconfig
index 3c65c83..a208a27 100644
--- a/configs/axs103_defconfig
+++ b/configs/axs103_defconfig
@@ -21,7 +21,6 @@ CONFIG_ETH_DESIGNWARE=y
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_DM_USB=y
-CONFIG_USB_EHCI_HCD=y
-CONFIG_USB_EHCI_GENERIC=y
+CONFIG_USB_OHCI_GENERIC=y
 CONFIG_USB_STORAGE=y
 CONFIG_USE_PRIVATE_LIBGCC=y
diff --git a/include/configs/axs101.h b/include/configs/axs101.h
index 650d97d..c92cca2 100644
--- a/include/configs/axs101.h
+++ b/include/configs/axs101.h
@@ -105,6 +105,12 @@
 #define CONFIG_DW_AUTONEG
 
 /*
+ * USB 1.1 configuration
+ */
+#define CONFIG_USB_OHCI_NEW
+#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 1
+
+/*
  * Commands still not supported in Kconfig
  */
 #define CONFIG_CMD_FAT
-- 
2.4.3