axs103: add support of generic OHCI USB 1.1 controller

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@synopsys.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>

diff --git a/arch/arc/dts/axs10x.dts b/arch/arc/dts/axs10x.dts
index 80e6d6b..391d067 100644 (file)
--- a/arch/arc/dts/axs10x.dts
+++ b/arch/arc/dts/axs10x.dts
@@ -48,4 +48,10 @@
                reg = < 0xe0040000 0x100 >;
                interrupts = < 8 >;
        };
+
+       ohci@0xe0060000 {
+               compatible = "generic-ohci";
+               reg = < 0xe0060000 0x100 >;
+               interrupts = < 8 >;
+       };
 };

diff --git a/configs/axs103_defconfig b/configs/axs103_defconfig
index 3c65c83..a208a27 100644 (file)
--- 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 (file)
--- 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