mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-19 02:54:24 +00:00
234bc7f88e
From now on, platform_def.h must include any header with definitions that are platform-specific (like arm_def.h) and the included headers mustn't include back platform_def.h, and shouldn't be used by other files. Only platform_def.h should be included in other files. This will ensure that all needed definitions are present, rather than needing to include all the headers in all the definitions' headers just in case. This also prevents problems like cyclic dependencies. Change-Id: I9d3cf4d1de4b956fa035c79545222697acdaf5ca Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
/*
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* Copyright (c) 2014-2017, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <stdint.h>
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#include <arch_helpers.h>
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#include <common/debug.h>
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#include <drivers/delay_timer.h>
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#include <plat/common/platform.h>
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#include <platform_def.h>
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#include "css_scp.h"
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#include "../sds/sds.h"
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int css_scp_boot_image_xfer(void *image, unsigned int image_size)
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{
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int ret;
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unsigned int image_offset, image_flags;
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ret = sds_init();
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if (ret != SDS_OK) {
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ERROR("SCP SDS initialization failed\n");
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panic();
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}
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VERBOSE("Writing SCP image metadata\n");
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image_offset = (uintptr_t) image - ARM_TRUSTED_SRAM_BASE;
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ret = sds_struct_write(SDS_SCP_IMG_STRUCT_ID, SDS_SCP_IMG_ADDR_OFFSET,
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&image_offset, SDS_SCP_IMG_ADDR_SIZE,
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SDS_ACCESS_MODE_NON_CACHED);
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if (ret != SDS_OK)
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goto sds_fail;
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ret = sds_struct_write(SDS_SCP_IMG_STRUCT_ID, SDS_SCP_IMG_SIZE_OFFSET,
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&image_size, SDS_SCP_IMG_SIZE_SIZE,
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SDS_ACCESS_MODE_NON_CACHED);
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if (ret != SDS_OK)
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goto sds_fail;
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VERBOSE("Marking SCP image metadata as valid\n");
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image_flags = SDS_SCP_IMG_VALID_FLAG_BIT;
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ret = sds_struct_write(SDS_SCP_IMG_STRUCT_ID, SDS_SCP_IMG_FLAG_OFFSET,
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&image_flags, SDS_SCP_IMG_FLAG_SIZE,
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SDS_ACCESS_MODE_NON_CACHED);
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if (ret != SDS_OK)
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goto sds_fail;
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return 0;
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sds_fail:
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ERROR("SCP SDS write to SCP IMG struct failed\n");
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panic();
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}
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/*
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* API to wait for SCP to signal till it's ready after booting the transferred
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* image.
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*/
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int css_scp_boot_ready(void)
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{
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uint32_t scp_feature_availability_flags;
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int ret, retry = CSS_SCP_READY_10US_RETRIES;
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VERBOSE("Waiting for SCP RAM to complete its initialization process\n");
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/* Wait for the SCP RAM Firmware to complete its initialization process */
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while (retry > 0) {
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ret = sds_struct_read(SDS_FEATURE_AVAIL_STRUCT_ID, 0,
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&scp_feature_availability_flags,
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SDS_FEATURE_AVAIL_SIZE,
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SDS_ACCESS_MODE_NON_CACHED);
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if (ret == SDS_ERR_STRUCT_NOT_FINALIZED)
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continue;
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if (ret != SDS_OK) {
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ERROR(" sds_struct_read failed\n");
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panic();
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}
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if (scp_feature_availability_flags &
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SDS_FEATURE_AVAIL_SCP_RAM_READY_BIT)
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return 0;
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udelay(10);
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retry--;
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}
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ERROR("Timeout of %d ms expired waiting for SCP RAM Ready flag\n",
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CSS_SCP_READY_10US_RETRIES/100);
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plat_panic_handler();
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}
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