upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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664 lines
16 KiB
664 lines
16 KiB
/*
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|
* (C) Copyright 2008 - 2009
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* Windriver, <www.windriver.com>
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* Tom Rix <Tom.Rix@windriver.com>
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*
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* Copyright 2011 Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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*
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* Copyright 2014 Linaro, Ltd.
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* Rob Herring <robh@kernel.org>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <config.h>
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#include <common.h>
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#include <errno.h>
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#include <malloc.h>
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#include <linux/usb/ch9.h>
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#include <linux/usb/gadget.h>
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#include <linux/usb/composite.h>
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#include <linux/compiler.h>
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#include <version.h>
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#include <g_dnl.h>
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#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
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#include <fb_mmc.h>
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#endif
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#define FASTBOOT_VERSION "0.4"
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#define FASTBOOT_INTERFACE_CLASS 0xff
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#define FASTBOOT_INTERFACE_SUB_CLASS 0x42
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#define FASTBOOT_INTERFACE_PROTOCOL 0x03
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#define RX_ENDPOINT_MAXIMUM_PACKET_SIZE_2_0 (0x0200)
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#define RX_ENDPOINT_MAXIMUM_PACKET_SIZE_1_1 (0x0040)
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#define TX_ENDPOINT_MAXIMUM_PACKET_SIZE (0x0040)
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/* The 64 defined bytes plus \0 */
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#define RESPONSE_LEN (64 + 1)
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#define EP_BUFFER_SIZE 4096
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struct f_fastboot {
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struct usb_function usb_function;
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/* IN/OUT EP's and corresponding requests */
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struct usb_ep *in_ep, *out_ep;
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struct usb_request *in_req, *out_req;
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};
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static inline struct f_fastboot *func_to_fastboot(struct usb_function *f)
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{
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return container_of(f, struct f_fastboot, usb_function);
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}
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static struct f_fastboot *fastboot_func;
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static unsigned int download_size;
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static unsigned int download_bytes;
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static bool is_high_speed;
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static struct usb_endpoint_descriptor fs_ep_in = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = USB_DIR_IN,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = TX_ENDPOINT_MAXIMUM_PACKET_SIZE,
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.bInterval = 0x00,
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};
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static struct usb_endpoint_descriptor fs_ep_out = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = USB_DIR_OUT,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = RX_ENDPOINT_MAXIMUM_PACKET_SIZE_1_1,
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.bInterval = 0x00,
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};
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static struct usb_endpoint_descriptor hs_ep_out = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = USB_DIR_OUT,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = RX_ENDPOINT_MAXIMUM_PACKET_SIZE_2_0,
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.bInterval = 0x00,
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};
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static struct usb_interface_descriptor interface_desc = {
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.bLength = USB_DT_INTERFACE_SIZE,
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = 0x00,
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.bAlternateSetting = 0x00,
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.bNumEndpoints = 0x02,
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.bInterfaceClass = FASTBOOT_INTERFACE_CLASS,
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.bInterfaceSubClass = FASTBOOT_INTERFACE_SUB_CLASS,
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.bInterfaceProtocol = FASTBOOT_INTERFACE_PROTOCOL,
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};
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static struct usb_descriptor_header *fb_runtime_descs[] = {
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(struct usb_descriptor_header *)&interface_desc,
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(struct usb_descriptor_header *)&fs_ep_in,
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(struct usb_descriptor_header *)&hs_ep_out,
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NULL,
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};
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/*
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* static strings, in UTF-8
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*/
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static const char fastboot_name[] = "Android Fastboot";
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static struct usb_string fastboot_string_defs[] = {
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[0].s = fastboot_name,
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{ } /* end of list */
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};
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static struct usb_gadget_strings stringtab_fastboot = {
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.language = 0x0409, /* en-us */
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.strings = fastboot_string_defs,
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};
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static struct usb_gadget_strings *fastboot_strings[] = {
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&stringtab_fastboot,
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NULL,
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};
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static void rx_handler_command(struct usb_ep *ep, struct usb_request *req);
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static int strcmp_l1(const char *s1, const char *s2);
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static void fastboot_complete(struct usb_ep *ep, struct usb_request *req)
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{
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int status = req->status;
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if (!status)
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return;
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printf("status: %d ep '%s' trans: %d\n", status, ep->name, req->actual);
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}
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static int fastboot_bind(struct usb_configuration *c, struct usb_function *f)
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{
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int id;
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struct usb_gadget *gadget = c->cdev->gadget;
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struct f_fastboot *f_fb = func_to_fastboot(f);
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const char *s;
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/* DYNAMIC interface numbers assignments */
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id = usb_interface_id(c, f);
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if (id < 0)
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return id;
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interface_desc.bInterfaceNumber = id;
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id = usb_string_id(c->cdev);
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if (id < 0)
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return id;
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fastboot_string_defs[0].id = id;
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interface_desc.iInterface = id;
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f_fb->in_ep = usb_ep_autoconfig(gadget, &fs_ep_in);
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if (!f_fb->in_ep)
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return -ENODEV;
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f_fb->in_ep->driver_data = c->cdev;
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f_fb->out_ep = usb_ep_autoconfig(gadget, &fs_ep_out);
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if (!f_fb->out_ep)
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return -ENODEV;
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f_fb->out_ep->driver_data = c->cdev;
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hs_ep_out.bEndpointAddress = fs_ep_out.bEndpointAddress;
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s = getenv("serial#");
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if (s)
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g_dnl_set_serialnumber((char *)s);
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return 0;
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}
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static void fastboot_unbind(struct usb_configuration *c, struct usb_function *f)
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{
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memset(fastboot_func, 0, sizeof(*fastboot_func));
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}
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static void fastboot_disable(struct usb_function *f)
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{
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struct f_fastboot *f_fb = func_to_fastboot(f);
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usb_ep_disable(f_fb->out_ep);
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usb_ep_disable(f_fb->in_ep);
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if (f_fb->out_req) {
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free(f_fb->out_req->buf);
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usb_ep_free_request(f_fb->out_ep, f_fb->out_req);
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f_fb->out_req = NULL;
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}
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if (f_fb->in_req) {
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free(f_fb->in_req->buf);
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usb_ep_free_request(f_fb->in_ep, f_fb->in_req);
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f_fb->in_req = NULL;
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}
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}
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static struct usb_request *fastboot_start_ep(struct usb_ep *ep)
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{
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struct usb_request *req;
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req = usb_ep_alloc_request(ep, 0);
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if (!req)
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return NULL;
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req->length = EP_BUFFER_SIZE;
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req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE, EP_BUFFER_SIZE);
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if (!req->buf) {
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usb_ep_free_request(ep, req);
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return NULL;
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}
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memset(req->buf, 0, req->length);
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return req;
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}
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static int fastboot_set_alt(struct usb_function *f,
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unsigned interface, unsigned alt)
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{
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int ret;
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struct usb_composite_dev *cdev = f->config->cdev;
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struct usb_gadget *gadget = cdev->gadget;
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struct f_fastboot *f_fb = func_to_fastboot(f);
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debug("%s: func: %s intf: %d alt: %d\n",
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__func__, f->name, interface, alt);
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/* make sure we don't enable the ep twice */
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if (gadget->speed == USB_SPEED_HIGH) {
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ret = usb_ep_enable(f_fb->out_ep, &hs_ep_out);
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is_high_speed = true;
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} else {
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ret = usb_ep_enable(f_fb->out_ep, &fs_ep_out);
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is_high_speed = false;
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}
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if (ret) {
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puts("failed to enable out ep\n");
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return ret;
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}
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f_fb->out_req = fastboot_start_ep(f_fb->out_ep);
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if (!f_fb->out_req) {
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puts("failed to alloc out req\n");
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ret = -EINVAL;
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goto err;
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}
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f_fb->out_req->complete = rx_handler_command;
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ret = usb_ep_enable(f_fb->in_ep, &fs_ep_in);
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if (ret) {
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puts("failed to enable in ep\n");
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goto err;
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}
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f_fb->in_req = fastboot_start_ep(f_fb->in_ep);
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if (!f_fb->in_req) {
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puts("failed alloc req in\n");
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ret = -EINVAL;
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goto err;
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}
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f_fb->in_req->complete = fastboot_complete;
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ret = usb_ep_queue(f_fb->out_ep, f_fb->out_req, 0);
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if (ret)
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goto err;
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return 0;
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err:
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fastboot_disable(f);
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return ret;
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}
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static int fastboot_add(struct usb_configuration *c)
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{
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struct f_fastboot *f_fb = fastboot_func;
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int status;
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debug("%s: cdev: 0x%p\n", __func__, c->cdev);
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if (!f_fb) {
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f_fb = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*f_fb));
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if (!f_fb)
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return -ENOMEM;
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fastboot_func = f_fb;
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memset(f_fb, 0, sizeof(*f_fb));
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}
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f_fb->usb_function.name = "f_fastboot";
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f_fb->usb_function.hs_descriptors = fb_runtime_descs;
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f_fb->usb_function.bind = fastboot_bind;
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f_fb->usb_function.unbind = fastboot_unbind;
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f_fb->usb_function.set_alt = fastboot_set_alt;
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f_fb->usb_function.disable = fastboot_disable;
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f_fb->usb_function.strings = fastboot_strings;
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status = usb_add_function(c, &f_fb->usb_function);
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if (status) {
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free(f_fb);
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fastboot_func = f_fb;
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}
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return status;
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}
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DECLARE_GADGET_BIND_CALLBACK(usb_dnl_fastboot, fastboot_add);
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static int fastboot_tx_write(const char *buffer, unsigned int buffer_size)
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{
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struct usb_request *in_req = fastboot_func->in_req;
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int ret;
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memcpy(in_req->buf, buffer, buffer_size);
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in_req->length = buffer_size;
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ret = usb_ep_queue(fastboot_func->in_ep, in_req, 0);
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if (ret)
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printf("Error %d on queue\n", ret);
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return 0;
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}
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static int fastboot_tx_write_str(const char *buffer)
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{
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return fastboot_tx_write(buffer, strlen(buffer));
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}
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static void compl_do_reset(struct usb_ep *ep, struct usb_request *req)
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{
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do_reset(NULL, 0, 0, NULL);
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}
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int __weak fb_set_reboot_flag(void)
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{
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return -ENOSYS;
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}
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static void cb_reboot(struct usb_ep *ep, struct usb_request *req)
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{
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char *cmd = req->buf;
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if (!strcmp_l1("reboot-bootloader", cmd)) {
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if (fb_set_reboot_flag()) {
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fastboot_tx_write_str("FAILCannot set reboot flag");
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return;
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}
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}
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fastboot_func->in_req->complete = compl_do_reset;
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fastboot_tx_write_str("OKAY");
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}
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static int strcmp_l1(const char *s1, const char *s2)
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{
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if (!s1 || !s2)
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return -1;
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return strncmp(s1, s2, strlen(s1));
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}
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static void cb_getvar(struct usb_ep *ep, struct usb_request *req)
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{
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char *cmd = req->buf;
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char response[RESPONSE_LEN];
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const char *s;
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size_t chars_left;
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strcpy(response, "OKAY");
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chars_left = sizeof(response) - strlen(response) - 1;
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strsep(&cmd, ":");
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if (!cmd) {
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error("missing variable\n");
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fastboot_tx_write_str("FAILmissing var");
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return;
|
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}
|
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if (!strcmp_l1("version", cmd)) {
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strncat(response, FASTBOOT_VERSION, chars_left);
|
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} else if (!strcmp_l1("bootloader-version", cmd)) {
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strncat(response, U_BOOT_VERSION, chars_left);
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} else if (!strcmp_l1("downloadsize", cmd) ||
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!strcmp_l1("max-download-size", cmd)) {
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char str_num[12];
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|
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sprintf(str_num, "0x%08x", CONFIG_USB_FASTBOOT_BUF_SIZE);
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strncat(response, str_num, chars_left);
|
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} else if (!strcmp_l1("serialno", cmd)) {
|
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s = getenv("serial#");
|
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if (s)
|
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strncat(response, s, chars_left);
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else
|
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strcpy(response, "FAILValue not set");
|
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} else {
|
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error("unknown variable: %s\n", cmd);
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strcpy(response, "FAILVariable not implemented");
|
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}
|
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fastboot_tx_write_str(response);
|
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}
|
|
|
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static unsigned int rx_bytes_expected(unsigned int maxpacket)
|
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{
|
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int rx_remain = download_size - download_bytes;
|
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int rem = 0;
|
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if (rx_remain < 0)
|
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return 0;
|
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if (rx_remain > EP_BUFFER_SIZE)
|
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return EP_BUFFER_SIZE;
|
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if (rx_remain < maxpacket) {
|
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rx_remain = maxpacket;
|
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} else if (rx_remain % maxpacket != 0) {
|
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rem = rx_remain % maxpacket;
|
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rx_remain = rx_remain + (maxpacket - rem);
|
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}
|
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return rx_remain;
|
|
}
|
|
|
|
#define BYTES_PER_DOT 0x20000
|
|
static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
char response[RESPONSE_LEN];
|
|
unsigned int transfer_size = download_size - download_bytes;
|
|
const unsigned char *buffer = req->buf;
|
|
unsigned int buffer_size = req->actual;
|
|
unsigned int pre_dot_num, now_dot_num;
|
|
unsigned int max;
|
|
|
|
if (req->status != 0) {
|
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printf("Bad status: %d\n", req->status);
|
|
return;
|
|
}
|
|
|
|
if (buffer_size < transfer_size)
|
|
transfer_size = buffer_size;
|
|
|
|
memcpy((void *)CONFIG_USB_FASTBOOT_BUF_ADDR + download_bytes,
|
|
buffer, transfer_size);
|
|
|
|
pre_dot_num = download_bytes / BYTES_PER_DOT;
|
|
download_bytes += transfer_size;
|
|
now_dot_num = download_bytes / BYTES_PER_DOT;
|
|
|
|
if (pre_dot_num != now_dot_num) {
|
|
putc('.');
|
|
if (!(now_dot_num % 74))
|
|
putc('\n');
|
|
}
|
|
|
|
/* Check if transfer is done */
|
|
if (download_bytes >= download_size) {
|
|
/*
|
|
* Reset global transfer variable, keep download_bytes because
|
|
* it will be used in the next possible flashing command
|
|
*/
|
|
download_size = 0;
|
|
req->complete = rx_handler_command;
|
|
req->length = EP_BUFFER_SIZE;
|
|
|
|
sprintf(response, "OKAY");
|
|
fastboot_tx_write_str(response);
|
|
|
|
printf("\ndownloading of %d bytes finished\n", download_bytes);
|
|
} else {
|
|
max = is_high_speed ? hs_ep_out.wMaxPacketSize :
|
|
fs_ep_out.wMaxPacketSize;
|
|
req->length = rx_bytes_expected(max);
|
|
if (req->length < ep->maxpacket)
|
|
req->length = ep->maxpacket;
|
|
}
|
|
|
|
req->actual = 0;
|
|
usb_ep_queue(ep, req, 0);
|
|
}
|
|
|
|
static void cb_download(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
char *cmd = req->buf;
|
|
char response[RESPONSE_LEN];
|
|
unsigned int max;
|
|
|
|
strsep(&cmd, ":");
|
|
download_size = simple_strtoul(cmd, NULL, 16);
|
|
download_bytes = 0;
|
|
|
|
printf("Starting download of %d bytes\n", download_size);
|
|
|
|
if (0 == download_size) {
|
|
sprintf(response, "FAILdata invalid size");
|
|
} else if (download_size > CONFIG_USB_FASTBOOT_BUF_SIZE) {
|
|
download_size = 0;
|
|
sprintf(response, "FAILdata too large");
|
|
} else {
|
|
sprintf(response, "DATA%08x", download_size);
|
|
req->complete = rx_handler_dl_image;
|
|
max = is_high_speed ? hs_ep_out.wMaxPacketSize :
|
|
fs_ep_out.wMaxPacketSize;
|
|
req->length = rx_bytes_expected(max);
|
|
if (req->length < ep->maxpacket)
|
|
req->length = ep->maxpacket;
|
|
}
|
|
fastboot_tx_write_str(response);
|
|
}
|
|
|
|
static void do_bootm_on_complete(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
char boot_addr_start[12];
|
|
char *bootm_args[] = { "bootm", boot_addr_start, NULL };
|
|
|
|
puts("Booting kernel..\n");
|
|
|
|
sprintf(boot_addr_start, "0x%lx", load_addr);
|
|
do_bootm(NULL, 0, 2, bootm_args);
|
|
|
|
/* This only happens if image is somehow faulty so we start over */
|
|
do_reset(NULL, 0, 0, NULL);
|
|
}
|
|
|
|
static void cb_boot(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
fastboot_func->in_req->complete = do_bootm_on_complete;
|
|
fastboot_tx_write_str("OKAY");
|
|
}
|
|
|
|
static void do_exit_on_complete(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
g_dnl_trigger_detach();
|
|
}
|
|
|
|
static void cb_continue(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
fastboot_func->in_req->complete = do_exit_on_complete;
|
|
fastboot_tx_write_str("OKAY");
|
|
}
|
|
|
|
#ifdef CONFIG_FASTBOOT_FLASH
|
|
static void cb_flash(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
char *cmd = req->buf;
|
|
char response[RESPONSE_LEN];
|
|
|
|
strsep(&cmd, ":");
|
|
if (!cmd) {
|
|
error("missing partition name\n");
|
|
fastboot_tx_write_str("FAILmissing partition name");
|
|
return;
|
|
}
|
|
|
|
strcpy(response, "FAILno flash device defined");
|
|
#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
|
|
fb_mmc_flash_write(cmd, (void *)CONFIG_USB_FASTBOOT_BUF_ADDR,
|
|
download_bytes, response);
|
|
#endif
|
|
fastboot_tx_write_str(response);
|
|
}
|
|
#endif
|
|
|
|
static void cb_oem(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
char *cmd = req->buf;
|
|
#ifdef CONFIG_FASTBOOT_FLASH
|
|
if (strncmp("format", cmd + 4, 6) == 0) {
|
|
char cmdbuf[32];
|
|
sprintf(cmdbuf, "gpt write mmc %x $partitions",
|
|
CONFIG_FASTBOOT_FLASH_MMC_DEV);
|
|
if (run_command(cmdbuf, 0))
|
|
fastboot_tx_write_str("FAIL");
|
|
else
|
|
fastboot_tx_write_str("OKAY");
|
|
} else
|
|
#endif
|
|
if (strncmp("unlock", cmd + 4, 8) == 0) {
|
|
fastboot_tx_write_str("FAILnot implemented");
|
|
}
|
|
else {
|
|
fastboot_tx_write_str("FAILunknown oem command");
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_FASTBOOT_FLASH
|
|
static void cb_erase(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
char *cmd = req->buf;
|
|
char response[RESPONSE_LEN];
|
|
|
|
strsep(&cmd, ":");
|
|
if (!cmd) {
|
|
error("missing partition name");
|
|
fastboot_tx_write_str("FAILmissing partition name");
|
|
return;
|
|
}
|
|
|
|
strcpy(response, "FAILno flash device defined");
|
|
|
|
#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
|
|
fb_mmc_erase(cmd, response);
|
|
#endif
|
|
fastboot_tx_write_str(response);
|
|
}
|
|
#endif
|
|
|
|
struct cmd_dispatch_info {
|
|
char *cmd;
|
|
void (*cb)(struct usb_ep *ep, struct usb_request *req);
|
|
};
|
|
|
|
static const struct cmd_dispatch_info cmd_dispatch_info[] = {
|
|
{
|
|
.cmd = "reboot",
|
|
.cb = cb_reboot,
|
|
}, {
|
|
.cmd = "getvar:",
|
|
.cb = cb_getvar,
|
|
}, {
|
|
.cmd = "download:",
|
|
.cb = cb_download,
|
|
}, {
|
|
.cmd = "boot",
|
|
.cb = cb_boot,
|
|
}, {
|
|
.cmd = "continue",
|
|
.cb = cb_continue,
|
|
},
|
|
#ifdef CONFIG_FASTBOOT_FLASH
|
|
{
|
|
.cmd = "flash",
|
|
.cb = cb_flash,
|
|
}, {
|
|
.cmd = "erase",
|
|
.cb = cb_erase,
|
|
},
|
|
#endif
|
|
{
|
|
.cmd = "oem",
|
|
.cb = cb_oem,
|
|
},
|
|
};
|
|
|
|
static void rx_handler_command(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
char *cmdbuf = req->buf;
|
|
void (*func_cb)(struct usb_ep *ep, struct usb_request *req) = NULL;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(cmd_dispatch_info); i++) {
|
|
if (!strcmp_l1(cmd_dispatch_info[i].cmd, cmdbuf)) {
|
|
func_cb = cmd_dispatch_info[i].cb;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!func_cb) {
|
|
error("unknown command: %s\n", cmdbuf);
|
|
fastboot_tx_write_str("FAILunknown command");
|
|
} else {
|
|
if (req->actual < req->length) {
|
|
u8 *buf = (u8 *)req->buf;
|
|
buf[req->actual] = 0;
|
|
func_cb(ep, req);
|
|
} else {
|
|
error("buffer overflow\n");
|
|
fastboot_tx_write_str("FAILbuffer overflow");
|
|
}
|
|
}
|
|
|
|
if (req->status == 0) {
|
|
*cmdbuf = '\0';
|
|
req->actual = 0;
|
|
usb_ep_queue(ep, req, 0);
|
|
}
|
|
}
|
|
|