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July 2017

194 participants
622 discussions

[U-Boot] [PATCH] arch: armv8: Remove the error when dcache is off
by Siva Durga Prasad Paladugu 03 Jul '17

03 Jul '17

Remove the error which causes compilation failure when dcache is off for builds otherthan SPL. There may be cases where user wants to disable dcache completely eventhough it is not SPL. Signed-off-by: Siva Durga Prasad Paladugu <sivadur(a)xilinx.com> --- arch/arm/cpu/armv8/cache_v8.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/arch/arm/cpu/armv8/cache_v8.c b/arch/arm/cpu/armv8/cache_v8.c index adc7e17..d11efcc 100644 --- a/arch/arm/cpu/armv8/cache_v8.c +++ b/arch/arm/cpu/armv8/cache_v8.c @@ -647,15 +647,6 @@ void mmu_change_region_attr(phys_addr_t addr, size_t siz, u64 attrs) #else /* CONFIG_SYS_DCACHE_OFF */ -/* - * For SPL builds, we may want to not have dcache enabled. Any real U-Boot - * running however really wants to have dcache and the MMU active. Check that - * everything is sane and give the developer a hint if it isn't. - */ -#ifndef CONFIG_SPL_BUILD -#error Please describe your MMU layout in CONFIG_SYS_MEM_MAP and enable dcache. -#endif - void invalidate_dcache_all(void) { } -- 2.7.4

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[U-Boot] i.MX6Q USB OTG Gadget and Fastboot?
by Adam Ford 01 Jul '17

01 Jul '17

I am trying to add in Android Fastboot to my i.MX6Q. I am using DM_USB to enable the USB through the device tree. This device tree works in Linux, so I am assumming I've missed some configuration somewhere: I've added the following the defconfig file: +CONFIG_CMD_USB=y +CONFIG_DM_USB=y +CONFIG_USB=y +CONFIG_USB_STORAGE=y +CONFIG_USB_GADGET=y +CONFIG_CI_UDC=y +CONFIG_USB_GADGET_DOWNLOAD=y +CONFIG_G_DNL_MANUFACTURER="FSL" +CONFIG_G_DNL_VENDOR_NUM=0x0525 +CONFIG_G_DNL_PRODUCT_NUM=0xa4a5 Based on stuff I found in imx6q sabresd, I have also added the following to my configs header file: +/* USB Configs */ +#ifdef CONFIG_CMD_USB +#define CONFIG_EHCI_HCD_INIT_AFTER_RESET +#define CONFIG_USB_HOST_ETHER +#define CONFIG_USB_ETHER_ASIX +#define CONFIG_MXC_USB_PORTSC (PORT_PTS_UTMI | PORT_PTS_PTW) +#define CONFIG_MXC_USB_FLAGS 0 +#define CONFIG_USB_MAX_CONTROLLER_COUNT 1 /* Enabled USB controller number */ +#endif + +#ifndef CONFIG_SPL +#define CONFIG_USBD_HS +#define CONFIG_USB_FUNCTION_MASS_STORAGE +#define CONFIG_USB_FUNCTION_FASTBOOT +#define CONFIG_CMD_FASTBOOT +#define CONFIG_ANDROID_BOOT_IMAGE +#define CONFIG_FASTBOOT_BUF_ADDR CONFIG_SYS_LOAD_ADDR +#define CONFIG_FASTBOOT_BUF_SIZE 0x07000000 +#endif I can start the USB system and it appears to find 2 USB controllers. I have the OTG and USB H1 enabled in my device tree. When I start the board, the USB log on my host Ubuntu PC shows: [26450.012906] usb 3-2: new high-speed USB device number 37 using xhci_hcd [26455.176596] usb 3-2: device descriptor read/64, error -110 But it doesn't appear to be working correctly. i.MX6 Logic # usb start starting USB... USB0: USB1: USB EHCI 1.00 scanning bus 0 for devices... 1 USB Device(s) found scanning bus 1 for devices... 1 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found i.MX6 Logic # USB Info seems to show the same controller twice: i.MX6 Logic # usb info 1: Hub, USB Revision 2.0 - u-boot EHCI Host Controller - Class: Hub - PacketSize: 64 Configurations: 1 - Vendor: 0x0000 Product 0x0000 Version 1.0 Configuration: 1 - Interfaces: 1 Self Powered 0mA Interface: 0 - Alternate Setting 0, Endpoints: 1 - Class Hub - Endpoint 1 In Interrupt MaxPacket 8 Interval 255ms 1: Hub, USB Revision 2.0 - u-boot EHCI Host Controller - Class: Hub - PacketSize: 64 Configurations: 1 - Vendor: 0x0000 Product 0x0000 Version 1.0 Configuration: 1 - Interfaces: 1 Self Powered 0mA Interface: 0 - Alternate Setting 0, Endpoints: 1 - Class Hub - Endpoint 1 In Interrupt MaxPacket 8 Interval 255ms And the Ubuntu Host machine shows more errors: [26507.789535] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [26513.165249] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [26513.373225] usb 3-2: device not accepting address 40, error -62 [26513.373252] usb usb3-port2: unable to enumerate USB device I am wondering if I need to do something special to initialize the OTG controller beyond DM_USB. I am guessing that once I get the gadget working, the Fastboot would follow. My endgame is to use the Fastboot gadget to load the Android images, so attempted to run Fastboot from U-boot: i.MX6 Logic # fastboot USB0 g_dnl_register: failed!, error: -19 exit not allowed from main input shell. i.MX6 Logic # Maybe I am not using the correct syntax, but if I fun fastboot by itself, it requests a USB bus. Does anyone have any suggestions? adam

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