mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-10 15:14:43 +00:00
5271e359a4
Aligning addresses and sizes causes overhead which is unnecessary when we are not loading from block devices. Remove bl_len when it is not needed. For example, on iot2050 we save 144 bytes with this patch (once the rest of this series is applied): add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-144 (-144) Function old new delta spl_load_simple_fit 920 904 -16 load_simple_fit 496 444 -52 spl_spi_load_image 384 308 -76 Total: Before=87431, After=87287, chg -0.16% We use panic() instead of BUILD_BUG_ON in spl_set_bl_len because we still need to be able to compile it for things like mmc_load_image_raw_sector, even if that function will not be used. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
106 lines
2.5 KiB
C
106 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2016
|
|
* Xilinx, Inc.
|
|
*
|
|
* (C) Copyright 2016
|
|
* Toradex AG
|
|
*
|
|
* Michal Simek <michal.simek@amd.com>
|
|
* Stefan Agner <stefan.agner@toradex.com>
|
|
*/
|
|
#include <common.h>
|
|
#include <binman_sym.h>
|
|
#include <image.h>
|
|
#include <log.h>
|
|
#include <mapmem.h>
|
|
#include <spl.h>
|
|
#include <linux/libfdt.h>
|
|
|
|
static ulong spl_ram_load_read(struct spl_load_info *load, ulong sector,
|
|
ulong count, void *buf)
|
|
{
|
|
ulong addr = 0;
|
|
|
|
debug("%s: sector %lx, count %lx, buf %lx\n",
|
|
__func__, sector, count, (ulong)buf);
|
|
|
|
if (IS_ENABLED(CONFIG_SPL_LOAD_FIT)) {
|
|
addr = IF_ENABLED_INT(CONFIG_SPL_LOAD_FIT,
|
|
CONFIG_SPL_LOAD_FIT_ADDRESS);
|
|
}
|
|
addr += sector;
|
|
if (CONFIG_IS_ENABLED(IMAGE_PRE_LOAD))
|
|
addr += image_load_offset;
|
|
|
|
memcpy(buf, (void *)addr, count);
|
|
|
|
return count;
|
|
}
|
|
|
|
static int spl_ram_load_image(struct spl_image_info *spl_image,
|
|
struct spl_boot_device *bootdev)
|
|
{
|
|
struct legacy_img_hdr *header;
|
|
ulong addr = 0;
|
|
int ret;
|
|
|
|
if (IS_ENABLED(CONFIG_SPL_LOAD_FIT)) {
|
|
addr = IF_ENABLED_INT(CONFIG_SPL_LOAD_FIT,
|
|
CONFIG_SPL_LOAD_FIT_ADDRESS);
|
|
}
|
|
|
|
if (CONFIG_IS_ENABLED(IMAGE_PRE_LOAD)) {
|
|
ret = image_pre_load(addr);
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
addr += image_load_offset;
|
|
}
|
|
header = map_sysmem(addr, 0);
|
|
|
|
#if CONFIG_IS_ENABLED(DFU)
|
|
if (bootdev->boot_device == BOOT_DEVICE_DFU)
|
|
spl_dfu_cmd(0, "dfu_alt_info_ram", "ram", "0");
|
|
#endif
|
|
|
|
if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
|
|
image_get_magic(header) == FDT_MAGIC) {
|
|
struct spl_load_info load;
|
|
|
|
debug("Found FIT\n");
|
|
spl_set_bl_len(&load, 1);
|
|
load.read = spl_ram_load_read;
|
|
ret = spl_load_simple_fit(spl_image, &load, 0, header);
|
|
} else {
|
|
ulong u_boot_pos = spl_get_image_pos();
|
|
|
|
debug("Legacy image\n");
|
|
/*
|
|
* Get the header. It will point to an address defined by
|
|
* handoff which will tell where the image located inside
|
|
* the flash.
|
|
*/
|
|
debug("u_boot_pos = %lx\n", u_boot_pos);
|
|
if (u_boot_pos == BINMAN_SYM_MISSING) {
|
|
/*
|
|
* No binman support or no information. For now, fix it
|
|
* to the address pointed to by U-Boot.
|
|
*/
|
|
u_boot_pos = (ulong)spl_get_load_buffer(-sizeof(*header),
|
|
sizeof(*header));
|
|
}
|
|
header = map_sysmem(u_boot_pos, 0);
|
|
|
|
ret = spl_parse_image_header(spl_image, bootdev, header);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#if CONFIG_IS_ENABLED(RAM_DEVICE)
|
|
SPL_LOAD_IMAGE_METHOD("RAM", 0, BOOT_DEVICE_RAM, spl_ram_load_image);
|
|
#endif
|
|
#if CONFIG_IS_ENABLED(DFU)
|
|
SPL_LOAD_IMAGE_METHOD("DFU", 0, BOOT_DEVICE_DFU, spl_ram_load_image);
|
|
#endif
|