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
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
2.0 KiB
86 lines
2.0 KiB
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2013
|
|
* Afzal Mohammed <afzal.mohd.ma@gmail.com>
|
|
*
|
|
* Reference: dfu_mmc.c
|
|
* Copyright (C) 2012 Samsung Electronics
|
|
* author: Lukasz Majewski <l.majewski@samsung.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <malloc.h>
|
|
#include <errno.h>
|
|
#include <dfu.h>
|
|
|
|
static int dfu_transfer_medium_ram(enum dfu_op op, struct dfu_entity *dfu,
|
|
u64 offset, void *buf, long *len)
|
|
{
|
|
if (dfu->layout != DFU_RAM_ADDR) {
|
|
pr_err("unsupported layout: %s\n", dfu_get_layout(dfu->layout));
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (offset > dfu->data.ram.size) {
|
|
pr_err("request exceeds allowed area\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (op == DFU_OP_WRITE)
|
|
memcpy(dfu->data.ram.start + offset, buf, *len);
|
|
else
|
|
memcpy(buf, dfu->data.ram.start + offset, *len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dfu_write_medium_ram(struct dfu_entity *dfu, u64 offset,
|
|
void *buf, long *len)
|
|
{
|
|
return dfu_transfer_medium_ram(DFU_OP_WRITE, dfu, offset, buf, len);
|
|
}
|
|
|
|
int dfu_get_medium_size_ram(struct dfu_entity *dfu, u64 *size)
|
|
{
|
|
*size = dfu->data.ram.size;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dfu_read_medium_ram(struct dfu_entity *dfu, u64 offset,
|
|
void *buf, long *len)
|
|
{
|
|
return dfu_transfer_medium_ram(DFU_OP_READ, dfu, offset, buf, len);
|
|
}
|
|
|
|
int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char *s)
|
|
{
|
|
const char *argv[3];
|
|
const char **parg = argv;
|
|
|
|
for (; parg < argv + sizeof(argv) / sizeof(*argv); ++parg) {
|
|
*parg = strsep(&s, " ");
|
|
if (*parg == NULL) {
|
|
pr_err("Invalid number of arguments.\n");
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
dfu->dev_type = DFU_DEV_RAM;
|
|
if (strcmp(argv[0], "ram")) {
|
|
pr_err("unsupported device: %s\n", argv[0]);
|
|
return -ENODEV;
|
|
}
|
|
|
|
dfu->layout = DFU_RAM_ADDR;
|
|
dfu->data.ram.start = (void *)simple_strtoul(argv[1], NULL, 16);
|
|
dfu->data.ram.size = simple_strtoul(argv[2], NULL, 16);
|
|
|
|
dfu->write_medium = dfu_write_medium_ram;
|
|
dfu->get_medium_size = dfu_get_medium_size_ram;
|
|
dfu->read_medium = dfu_read_medium_ram;
|
|
|
|
dfu->inited = 0;
|
|
|
|
return 0;
|
|
}
|
|
|