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spl: Convert spl_fit to work with sandbox

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At present this casts addresses to pointers so cannot work with sandbox.
Update the code to use map_sysmem() instead.

As part of this change, the existing load_ptr is renamed to src_ptr since
it is not a pointer to load_addr. It is confusing to use a similar name
for something that is not actually related. For the alignment code,
ALIGN() is used instead of open-coded alignment. Add a comment to the line
that casts away a const.

Use a (new) load_ptr variable to access memory at address load_addr.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2021-03-07 17:35:14 -07:00 committed by Tom Rini
parent 01ad9f75c5
commit 891d9e84a7
2 changed files with 17 additions and 13 deletions
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3
common/spl/spl.c
View File

@ -16,6 +16,7 @@
#include <init.h>
#include <irq_func.h>
#include <log.h>
#include <mapmem.h>
#include <serial.h>
#include <spl.h>
#include <asm/global_data.h>
@ -168,7 +169,7 @@ __weak void spl_board_prepare_for_boot(void)
__weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
{
return (struct image_header *)(CONFIG_SYS_TEXT_BASE + offset);
return map_sysmem(CONFIG_SYS_TEXT_BASE + offset, 0);
}
void spl_set_header_raw_uboot(struct spl_image_info *spl_image)

27
common/spl/spl_fit.c
View File

@ -11,6 +11,7 @@
#include <image.h>
#include <log.h>
#include <malloc.h>
#include <mapmem.h>
#include <spl.h>
#include <sysinfo.h>
#include <asm/cache.h>
@ -235,11 +236,11 @@ static int spl_load_fit_image(struct spl_load_info *info, ulong sector,
size_t length;
int len;
ulong size;
ulong load_addr, load_ptr;
ulong load_addr;
void *load_ptr;
void *src;
ulong overhead;
int nr_sectors;
int align_len = ARCH_DMA_MINALIGN - 1;
uint8_t image_comp = -1, type = -1;
const void *data;
const void *fit = ctx->fit;
@ -269,11 +270,13 @@ static int spl_load_fit_image(struct spl_load_info *info, ulong sector,
}
if (external_data) {
void *src_ptr;
/* External data */
if (fit_image_get_data_size(fit, node, &len))
return -ENOENT;
load_ptr = (load_addr + align_len) & ~align_len;
src_ptr = map_sysmem(ALIGN(load_addr, ARCH_DMA_MINALIGN), len);
length = len;
overhead = get_aligned_image_overhead(info, offset);
@ -281,12 +284,12 @@ static int spl_load_fit_image(struct spl_load_info *info, ulong sector,
if (info->read(info,
sector + get_aligned_image_offset(info, offset),
nr_sectors, (void *)load_ptr) != nr_sectors)
nr_sectors, src_ptr) != nr_sectors)
return -EIO;
debug("External data: dst=%lx, offset=%x, size=%lx\n",
load_ptr, offset, (unsigned long)length);
src = (void *)load_ptr + overhead;
debug("External data: dst=%p, offset=%x, size=%lx\n",
src_ptr, offset, (unsigned long)length);
src = src_ptr + overhead;
} else {
/* Embedded data */
if (fit_image_get_data(fit, node, &data, &length)) {
@ -295,7 +298,7 @@ static int spl_load_fit_image(struct spl_load_info *info, ulong sector,
}
debug("Embedded data: dst=%lx, size=%lx\n", load_addr,
(unsigned long)length);
src = (void *)data;
src = (void *)data; /* cast away const */
}
if (CONFIG_IS_ENABLED(FIT_SIGNATURE)) {
@ -309,16 +312,16 @@ static int spl_load_fit_image(struct spl_load_info *info, ulong sector,
if (CONFIG_IS_ENABLED(FIT_IMAGE_POST_PROCESS))
board_fit_image_post_process(&src, &length);
load_ptr = map_sysmem(load_addr, length);
if (IS_ENABLED(CONFIG_SPL_GZIP) && image_comp == IH_COMP_GZIP) {
size = length;
if (gunzip((void *)load_addr, CONFIG_SYS_BOOTM_LEN,
src, &size)) {
if (gunzip(load_ptr, CONFIG_SYS_BOOTM_LEN, src, &size)) {
puts("Uncompressing error\n");
return -EIO;
}
length = size;
} else {
memcpy((void *)load_addr, src, length);
memcpy(load_ptr, src, length);
}
if (image_info) {
@ -383,7 +386,7 @@ static int spl_fit_append_fdt(struct spl_image_info *spl_image,
}
/* Make the load-address of the FDT available for the SPL framework */
spl_image->fdt_addr = (void *)image_info.load_addr;
spl_image->fdt_addr = map_sysmem(image_info.load_addr, 0);
if (CONFIG_IS_ENABLED(FIT_IMAGE_TINY))
return 0;