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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
89 lines
1.9 KiB
C
89 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2013
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* Afzal Mohammed <afzal.mohd.ma@gmail.com>
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*
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* Reference: dfu_mmc.c
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* Copyright (C) 2012 Samsung Electronics
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* author: Lukasz Majewski <l.majewski@samsung.com>
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*/
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#include <common.h>
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#include <malloc.h>
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#include <mapmem.h>
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#include <errno.h>
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#include <dfu.h>
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#include <linux/printk.h>
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static int dfu_transfer_medium_ram(enum dfu_op op, struct dfu_entity *dfu,
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u64 offset, void *buf, long *len)
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{
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if (dfu->layout != DFU_RAM_ADDR) {
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pr_err("unsupported layout: %s\n", dfu_get_layout(dfu->layout));
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return -EINVAL;
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}
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if (offset > dfu->data.ram.size) {
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pr_err("request exceeds allowed area\n");
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return -EINVAL;
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}
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if (op == DFU_OP_WRITE)
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memcpy(map_sysmem(dfu->data.ram.start + offset, 0), buf, *len);
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else
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memcpy(buf, map_sysmem(dfu->data.ram.start + offset, 0), *len);
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return 0;
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}
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static int dfu_write_medium_ram(struct dfu_entity *dfu, u64 offset,
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void *buf, long *len)
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{
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return dfu_transfer_medium_ram(DFU_OP_WRITE, dfu, offset, buf, len);
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}
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int dfu_get_medium_size_ram(struct dfu_entity *dfu, u64 *size)
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{
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*size = dfu->data.ram.size;
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return 0;
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}
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static int dfu_read_medium_ram(struct dfu_entity *dfu, u64 offset,
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void *buf, long *len)
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{
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return dfu_transfer_medium_ram(DFU_OP_READ, dfu, offset, buf, len);
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}
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int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char **argv, int argc)
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{
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char *s;
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if (argc != 3) {
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pr_err("Invalid number of arguments.\n");
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return -EINVAL;
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}
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dfu->dev_type = DFU_DEV_RAM;
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if (strcmp(argv[0], "ram")) {
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pr_err("unsupported device: %s\n", argv[0]);
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return -ENODEV;
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}
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dfu->layout = DFU_RAM_ADDR;
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dfu->data.ram.start = hextoul(argv[1], &s);
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if (*s)
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return -EINVAL;
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dfu->data.ram.size = hextoul(argv[2], &s);
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if (*s)
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return -EINVAL;
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dfu->write_medium = dfu_write_medium_ram;
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dfu->get_medium_size = dfu_get_medium_size_ram;
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dfu->read_medium = dfu_read_medium_ram;
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dfu->inited = 0;
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return 0;
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}
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