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Implement load_image in terms of IO abstraction

Browse source 
The modified implementation uses the IO abstraction rather than
making direct semi-hosting calls.  The semi-hosting driver is now
registered for the FVP platform during initialisation of each boot
stage where it is used.  Additionally, the FVP platform includes a
straightforward implementation of 'plat_get_image_source' which
provides a generic means for the 'load_image' function to determine
how to access the image data.

Change-Id: Ia34457b471dbee990c7b3c79de7aee4ceea51aa6
This commit is contained in:
James Morrissey 2014-02-10 17:04:32 +00:00 • committed by Dan Handley
parent f2f9bb5e71
commit 9d72b4ea9c
11 changed files with 479 additions and 45 deletions
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109
common/bl_common.c
View file

@ -37,6 +37,8 @@
#include <platform.h>
#include <semihosting.h>
#include <bl_common.h>
#include "io_storage.h"
#include "debug.h"
/***********************************************************
* Memory for sharing data while changing exception levels.
@ -262,7 +264,7 @@ static void dump_load_info(unsigned long image_load_addr,
}
/*******************************************************************************
* Generic function to load an image into the trusted RAM using semihosting
* Generic function to load an image into the trusted RAM,
* given a name, extents of free memory & whether the image should be loaded at
* the bottom or top of the free memory. It updates the memory layout if the
* load is successful.
@ -272,44 +274,68 @@ unsigned long load_image(meminfo *mem_layout,
unsigned int load_type,
unsigned long fixed_addr)
{
io_dev_handle dev_handle;
io_handle image_handle;
void *image_spec;
unsigned long temp_image_base = 0;
unsigned long image_base = 0;
long offset = 0;
int image_flen;
size_t image_size = 0;
size_t bytes_read = 0;
int io_result = IO_FAIL;
/* Find the size of the image */
image_flen = semihosting_get_flen(image_name);
if (image_flen < 0) {
printf("ERROR: Cannot access '%s' file (%i).\r\n",
image_name, image_flen);
assert(mem_layout != NULL);
assert(image_name != NULL);
/* Obtain a reference to the image by querying the platform layer */
io_result = plat_get_image_source(image_name, &dev_handle, &image_spec);
if (io_result != IO_SUCCESS) {
ERROR("Failed to obtain reference to image '%s' (%i)\n",
image_name, io_result);
return 0;
}
/* See if we have enough space */
if (image_flen > mem_layout->free_size) {
printf("ERROR: Cannot load '%s' file: Not enough space.\r\n",
image_name);
dump_load_info(0, image_flen, mem_layout);
/* Attempt to access the image */
io_result = io_open(dev_handle, image_spec, &image_handle);
if (io_result != IO_SUCCESS) {
ERROR("Failed to access image '%s' (%i)\n",
image_name, io_result);
return 0;
}
/* Find the size of the image */
io_result = io_size(image_handle, &image_size);
if ((io_result != IO_SUCCESS) || (image_size == 0)) {
ERROR("Failed to determine the size of the image '%s' file (%i)\n",
image_name, io_result);
goto fail;
}
/* See if we have enough space */
if (image_size > mem_layout->free_size) {
ERROR("ERROR: Cannot load '%s' file: Not enough space.\n",
image_name);
dump_load_info(0, image_size, mem_layout);
goto fail;
}
switch (load_type) {
case TOP_LOAD:
/* Load the image in the top of free memory */
temp_image_base = mem_layout->free_base + mem_layout->free_size;
temp_image_base -= image_flen;
temp_image_base -= image_size;
/* Page align base address and check whether the image still fits */
image_base = page_align(temp_image_base, DOWN);
assert(image_base <= temp_image_base);
if (image_base < mem_layout->free_base) {
printf("ERROR: Cannot load '%s' file: Not enough space.\r\n",
ERROR("Cannot load '%s' file: Not enough space.\n",
image_name);
dump_load_info(image_base, image_flen, mem_layout);
return 0;
dump_load_info(image_base, image_size, mem_layout);
goto fail;
}
/* Calculate the amount of extra memory used due to alignment */
@ -325,12 +351,12 @@ unsigned long load_image(meminfo *mem_layout,
assert(image_base >= temp_image_base);
/* Page align base address and check whether the image still fits */
if (image_base + image_flen >
if (image_base + image_size >
mem_layout->free_base + mem_layout->free_size) {
printf("ERROR: Cannot load '%s' file: Not enough space.\r\n",
ERROR("Cannot load '%s' file: Not enough space.\n",
image_name);
dump_load_info(image_base, image_flen, mem_layout);
return 0;
dump_load_info(image_base, image_size, mem_layout);
goto fail;
}
/* Calculate the amount of extra memory used due to alignment */
@ -390,19 +416,19 @@ unsigned long load_image(meminfo *mem_layout,
/* Check whether the image fits. */
if ((image_base < mem_layout->free_base) ||
(image_base + image_flen >
(image_base + image_size >
mem_layout->free_base + mem_layout->free_size)) {
printf("ERROR: Cannot load '%s' file: Not enough space.\r\n",
ERROR("Cannot load '%s' file: Not enough space.\n",
image_name);
dump_load_info(image_base, image_flen, mem_layout);
return 0;
dump_load_info(image_base, image_size, mem_layout);
goto fail;
}
/* Check whether the fixed load address is page-aligned. */
if (!is_page_aligned(image_base)) {
printf("ERROR: Cannot load '%s' file at unaligned address 0x%lx.\r\n",
ERROR("Cannot load '%s' file at unaligned address 0x%lx\n",
image_name, fixed_addr);
return 0;
goto fail;
}
/*
@ -432,7 +458,7 @@ unsigned long load_image(meminfo *mem_layout,
* Calculate the amount of wasted memory within the
* amount of memory used by the image.
*/
offset = space_used - image_flen;
offset = space_used - image_size;
} else /* BOT_LOAD */
/*
* ------------
@ -448,13 +474,11 @@ unsigned long load_image(meminfo *mem_layout,
}
/* We have enough space so load the image now */
image_flen = semihosting_download_file(image_name,
image_flen,
(void *) image_base);
if (image_flen <= 0) {
printf("ERROR: Failed to load '%s' file from semihosting (%i).\r\n",
image_name, image_flen);
return 0;
/* TODO: Consider whether to try to recover/retry a partially successful read */
io_result = io_read(image_handle, (void *)image_base, image_size, &bytes_read);
if ((io_result != IO_SUCCESS) || (bytes_read < image_size)) {
ERROR("Failed to load '%s' file (%i)\n", image_name, io_result);
goto fail;
}
/*
@ -463,15 +487,26 @@ unsigned long load_image(meminfo *mem_layout,
* the next EL can see it.
*/
/* Update the memory contents */
flush_dcache_range(image_base, image_flen);
flush_dcache_range(image_base, image_size);
mem_layout->free_size -= image_flen + offset;
mem_layout->free_size -= image_size + offset;
/* Update the base of free memory since its moved up */
if (load_type == BOT_LOAD)
mem_layout->free_base += offset + image_flen;
mem_layout->free_base += offset + image_size;
exit:
io_result = io_close(image_handle);
/* Ignore improbable/unrecoverable error in 'close' */
/* TODO: Consider maintaining open device connection from this bootloader stage */
io_result = io_dev_close(dev_handle);
/* Ignore improbable/unrecoverable error in 'dev_close' */
return image_base;
fail: image_base = 0;
goto exit;
}
/*******************************************************************************

239
drivers/io/io_semihosting.c Normal file
View file

@ -0,0 +1,239 @@
/*
* Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#include "io_storage.h"
#include "io_driver.h"
#include "semihosting.h"
/* Identify the device type as semihosting */
static io_type device_type_sh(void)
{
return IO_TYPE_SEMIHOSTING;
}
/* Semi-hosting functions, device info and handle */
static int sh_dev_open(void *spec, struct io_dev_info **dev_info);
static int sh_file_open(struct io_dev_info *dev_info, const void *spec,
struct io_entity *entity);
static int sh_file_seek(struct io_entity *entity, int mode, ssize_t offset);
static int sh_file_len(struct io_entity *entity, size_t *length);
static int sh_file_read(struct io_entity *entity, void *buffer, size_t length,
size_t *length_read);
static int sh_file_write(struct io_entity *entity, const void *buffer,
size_t length, size_t *length_written);
static int sh_file_close(struct io_entity *entity);
static struct io_dev_connector sh_dev_connector = {
.dev_open = sh_dev_open
};
static struct io_dev_funcs sh_dev_funcs = {
.type = device_type_sh,
.open = sh_file_open,
.seek = sh_file_seek,
.size = sh_file_len,
.read = sh_file_read,
.write = sh_file_write,
.close = sh_file_close,
.dev_init = NULL, /* NOP */
.dev_close = NULL, /* NOP */
};
static struct io_dev_info sh_dev_info = {
.funcs = &sh_dev_funcs,
.info = (uintptr_t)NULL
};
/* Open a connection to the semi-hosting device */
static int sh_dev_open(void *spec __unused, struct io_dev_info **dev_info)
{
int result = IO_SUCCESS;
assert(dev_info != NULL);
*dev_info = &sh_dev_info;
return result;
}
/* Open a file on the semi-hosting device */
static int sh_file_open(struct io_dev_info *dev_info __attribute__((unused)),
const void *spec, struct io_entity *entity)
{
int result = IO_FAIL;
int sh_result = -1;
const io_file_spec *file_spec = (io_file_spec *)spec;
assert(file_spec != NULL);
assert(entity != NULL);
sh_result = semihosting_file_open(file_spec->path, file_spec->mode);
if (sh_result > 0) {
entity->info = sh_result;
result = IO_SUCCESS;
} else {
result = IO_FAIL;
}
return result;
}
/* Seek to a particular file offset on the semi-hosting device */
static int sh_file_seek(struct io_entity *entity, int mode, ssize_t offset)
{
int result = IO_FAIL;
int file_handle, sh_result;
assert(entity != NULL);
file_handle = (int)entity->info;
sh_result = semihosting_file_seek(file_handle, offset);
result = (sh_result == 0) ? IO_SUCCESS : IO_FAIL;
return result;
}
/* Return the size of a file on the semi-hosting device */
static int sh_file_len(struct io_entity *entity, size_t *length)
{
int result = IO_FAIL;
assert(entity != NULL);
assert(length != NULL);
int sh_handle = entity->info;
int sh_result = semihosting_file_length(sh_handle);
if (sh_result >= 0) {
result = IO_SUCCESS;
*length = (size_t)sh_result;
}
return result;
}
/* Read data from a file on the semi-hosting device */
static int sh_file_read(struct io_entity *entity, void *buffer, size_t length,
size_t *length_read)
{
int result = IO_FAIL;
int sh_result = -1;
int bytes = length;
int file_handle;
assert(entity != NULL);
assert(buffer != NULL);
assert(length_read != NULL);
file_handle = (int)entity->info;
sh_result = semihosting_file_read(file_handle, &bytes, buffer);
if (sh_result >= 0) {
*length_read = (bytes != length) ? bytes : length;
result = IO_SUCCESS;
} else
result = IO_FAIL;
return result;
}
/* Write data to a file on the semi-hosting device */
static int sh_file_write(struct io_entity *entity, const void *buffer,
size_t length, size_t *length_written)
{
int result = IO_FAIL;
int sh_result = -1;
int file_handle;
int bytes = length;
assert(entity != NULL);
assert(buffer != NULL);
assert(length_written != NULL);
file_handle = (int)entity->info;
sh_result = semihosting_file_write(file_handle, &bytes, buffer);
if (sh_result >= 0) {
*length_written = sh_result;
result = IO_SUCCESS;
} else
result = IO_FAIL;
return result;
}
/* Close a file on the semi-hosting device */
static int sh_file_close(struct io_entity *entity)
{
int result = IO_FAIL;
int sh_result = -1;
int file_handle;
assert(entity != NULL);
file_handle = (int)entity->info;
sh_result = semihosting_file_close(file_handle);
result = (sh_result >= 0) ? IO_SUCCESS : IO_FAIL;
return result;
}
/* Exported functions */
/* Register the semi-hosting driver with the IO abstraction */
int register_io_dev_sh(struct io_dev_connector **dev_con)
{
int result = IO_FAIL;
assert(dev_con != NULL);
result = io_register_device(&sh_dev_info);
if (result == IO_SUCCESS)
*dev_con = &sh_dev_connector;
return result;
}

36
drivers/io/io_semihosting.h Normal file
View file

@ -0,0 +1,36 @@
/*
* Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __IO_SH_H__
#define __IO_SH_H__
int register_io_dev_sh(struct io_dev_connector **dev_con);
#endif /* __IO_SH_H__ */

3
include/io_storage.h
View file

@ -31,6 +31,8 @@
#ifndef __IO_H__
#define __IO_H__
#ifndef __ASSEMBLY__
#include <stdint.h>
#include <stdio.h> /* For ssize_t */
@ -125,4 +127,5 @@ int io_write(io_handle handle, const void *buffer, size_t length,
int io_close(io_handle handle);
#endif /* __ASSEMBLY__ */
#endif /* __IO_H__ */

2
include/semihosting.h
View file

@ -61,7 +61,7 @@ int semihosting_connection_supported(void);
int semihosting_file_open(const char *file_name, unsigned int mode);
int semihosting_file_seek(int file_handle, unsigned int offset);
int semihosting_file_read(int file_handle, int *length, void *buffer);
int semihosting_file_write(int file_handle, int *length, void *buffer);
int semihosting_file_write(int file_handle, int *length, const void *buffer);
int semihosting_file_close(int file_handle);
int semihosting_file_length(int file_handle);
int semihosting_system(char *command_line);

4
lib/semihosting/semihosting.c
View file

@ -120,7 +120,7 @@ int semihosting_file_read(int file_handle, int *length, void *buffer)
return result;
}
int semihosting_file_write(int file_handle, int *length, void *buffer)
int semihosting_file_write(int file_handle, int *length, const void *buffer)
{
smh_file_read_write_block write_block;
@ -128,7 +128,7 @@ int semihosting_file_write(int file_handle, int *length, void *buffer)
return -EINVAL;
write_block.handle = file_handle;
write_block.buffer = buffer;
write_block.buffer = (void *)buffer;
write_block.length = *length;
*length = semihosting_call(SEMIHOSTING_SYS_WRITE,

4
plat/fvp/bl1_plat_setup.c
View file

@ -110,6 +110,9 @@ void bl1_early_platform_setup(void)
******************************************************************************/
void bl1_platform_setup(void)
{
/* Initialise the IO layer and register platform IO devices */
io_setup();
/* Enable and initialize the System level generic timer */
mmio_write_32(SYS_CNTCTL_BASE + CNTCR_OFF, CNTCR_EN);
@ -119,6 +122,7 @@ void bl1_platform_setup(void)
return;
}
/*******************************************************************************
* Perform the very early platform specific architecture setup here. At the
* moment this only does basic initialization. Later architectural setup

3
plat/fvp/bl2_plat_setup.c
View file

@ -105,6 +105,9 @@ void bl2_early_platform_setup(meminfo *mem_layout,
******************************************************************************/
void bl2_platform_setup()
{
/* Initialise the IO layer and register platform IO devices */
io_setup();
/* Use the Trusted DRAM for passing args to BL31 */
bl2_el_change_mem_ptr = (unsigned char **) TZDRAM_BASE;
}

103
plat/fvp/plat_io_storage.c Normal file
View file

@ -0,0 +1,103 @@
/*
* Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#include <string.h>
#include "platform.h"
#include "io_storage.h"
#include "io_driver.h"
#include "io_semihosting.h"
#include "semihosting.h" /* For FOPEN_MODE_... */
#include "debug.h"
/* IO devices */
static struct io_plat_data io_data;
static struct io_dev_connector *sh_dev_con;
static void *const sh_dev_spec;
static void *const sh_init_params;
static io_dev_handle sh_dev_handle;
static io_file_spec bl2_image_spec = {
.path = BL2_IMAGE_NAME,
.mode = FOPEN_MODE_R
};
static io_file_spec bl31_image_spec = {
.path = BL31_IMAGE_NAME,
.mode = FOPEN_MODE_R
};
/* Set up the IO devices present on this platform, ready for use */
void io_setup(void)
{
/* Initialise the IO layer */
io_init(&io_data);
/* Register a semi-hosting device */
int io_result = register_io_dev_sh(&sh_dev_con);
assert(io_result == IO_SUCCESS);
/* Open a connection to the semi-hosting device and cache the handle */
io_result = io_dev_open(sh_dev_con, sh_dev_spec, &sh_dev_handle);
assert(io_result == IO_SUCCESS);
/* Ignore improbable errors in release builds */
(void)io_result;
}
/* Return an IO device handle and specification which can be used to access
* an image */
int plat_get_image_source(const char *image_name, io_dev_handle *dev_handle,
void **image_spec)
{
int result = IO_FAIL;
assert((image_name != NULL) && (dev_handle != NULL) &&
(image_spec != NULL));
if (strcmp(BL2_IMAGE_NAME, image_name) == 0) {
result = io_dev_init(sh_dev_handle, sh_init_params);
if (result == IO_SUCCESS) {
*dev_handle = sh_dev_handle;
*(io_file_spec **)image_spec = &bl2_image_spec;
}
} else if (strcmp(BL31_IMAGE_NAME, image_name) == 0) {
result = io_dev_init(sh_dev_handle, sh_init_params);
if (result == IO_SUCCESS) {
*dev_handle = sh_dev_handle;
*(io_file_spec **)image_spec = &bl31_image_spec;
}
} else
assert(0);
return result;
}

6
plat/fvp/platform.h
View file

@ -35,6 +35,7 @@
#include <mmio.h>
#include <psci.h>
#include <bl_common.h>
#include "io_storage.h"
/*******************************************************************************
@ -347,6 +348,11 @@ extern int plat_get_max_afflvl(void);
extern unsigned int plat_get_aff_count(unsigned int, unsigned long);
extern unsigned int plat_get_aff_state(unsigned int, unsigned long);
/* Declarations for plat_io_storage.c */
extern void io_setup(void);
extern int plat_get_image_source(const char *image_name,
io_dev_handle *dev_handle, void **image_spec);
#endif /*__ASSEMBLY__*/
#endif /* __PLATFORM_H__ */

13
plat/fvp/platform.mk
View file

@ -35,14 +35,16 @@ PLAT_INCLUDES := -Idrivers/arm/interconnect/cci-400 \
PLAT_BL1_C_VPATH := drivers/arm/interconnect/cci-400 \
drivers/arm/peripherals/pl011 \
lib/semihosting \
lib/stdlib
lib/stdlib \
drivers/io
PLAT_BL1_S_VPATH := lib/semihosting/${ARCH}
PLAT_BL2_C_VPATH := drivers/arm/interconnect/cci-400 \
drivers/arm/peripherals/pl011 \
lib/stdlib \
lib/semihosting
lib/semihosting \
drivers/io
PLAT_BL2_S_VPATH := lib/semihosting/${ARCH}
@ -50,7 +52,8 @@ PLAT_BL31_C_VPATH := drivers/arm/interconnect/cci-400 \
drivers/arm/peripherals/pl011 \
lib/semihosting \
lib/stdlib \
drivers/power
drivers/power \
drivers/io
PLAT_BL31_S_VPATH := lib/semihosting/${ARCH}
@ -58,7 +61,9 @@ PLAT_BL_COMMON_OBJS := semihosting_call.o \
mmio.o \
pl011.o \
semihosting.o \
sysreg_helpers.o
sysreg_helpers.o \
plat_io_storage.o \
io_semihosting.o
BL1_OBJS += bl1_plat_setup.o \
bl1_plat_helpers.o \