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This patch adds support for Firmware update in BL2U for ARM platforms such that TZC initialization is performed on all ARM platforms and (optionally) transfer of SCP_BL2U image on ARM CSS platforms. BL2U specific functions are added to handle early_platform and plat_arch setup. The MMU is configured to map in the BL2U code/data area and other required memory. Change-Id: I57863295a608cc06e6cbf078b7ce34cbd9733e4fpull/453/head
Yatharth Kochar
9 years ago
12 changed files with 290 additions and 0 deletions
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/*
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* Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* Redistributions of source code must retain the above copyright notice, this |
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* list of conditions and the following disclaimer. |
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* |
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* Redistributions in binary form must reproduce the above copyright notice, |
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* this list of conditions and the following disclaimer in the documentation |
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* and/or other materials provided with the distribution. |
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* |
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* Neither the name of ARM nor the names of its contributors may be used |
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* to endorse or promote products derived from this software without specific |
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* prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include <plat_arm.h> |
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#include "fvp_def.h" |
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#include "fvp_private.h" |
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void bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info) |
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{ |
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arm_bl2u_early_platform_setup(mem_layout, plat_info); |
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/* Initialize the platform config for future decision making */ |
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fvp_config_setup(); |
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} |
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/*
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* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* Redistributions of source code must retain the above copyright notice, this |
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* list of conditions and the following disclaimer. |
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* |
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* Redistributions in binary form must reproduce the above copyright notice, |
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* this list of conditions and the following disclaimer in the documentation |
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* and/or other materials provided with the distribution. |
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* |
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* Neither the name of ARM nor the names of its contributors may be used |
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* to endorse or promote products derived from this software without specific |
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* prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include <arch_helpers.h> |
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#include <arm_def.h> |
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#include <bl_common.h> |
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#include <console.h> |
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#include <platform_def.h> |
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#include <plat_arm.h> |
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#include <string.h> |
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/*
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* The next 2 constants identify the extents of the code & RO data region. |
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* These addresses are used by the MMU setup code and therefore they must be |
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* page-aligned. It is the responsibility of the linker script to ensure that |
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* __RO_START__ and __RO_END__ linker symbols refer to page-aligned addresses. |
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*/ |
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#define BL2U_RO_BASE (unsigned long)(&__RO_START__) |
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#define BL2U_RO_LIMIT (unsigned long)(&__RO_END__) |
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#if USE_COHERENT_MEM |
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/*
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* The next 2 constants identify the extents of the coherent memory region. |
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* These addresses are used by the MMU setup code and therefore they must be |
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* page-aligned. It is the responsibility of the linker script to ensure that |
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* __COHERENT_RAM_START__ and __COHERENT_RAM_END__ linker symbols refer to |
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* page-aligned addresses. |
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*/ |
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#define BL2U_COHERENT_RAM_BASE (unsigned long)(&__COHERENT_RAM_START__) |
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#define BL2U_COHERENT_RAM_LIMIT (unsigned long)(&__COHERENT_RAM_END__) |
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#endif |
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/* Weak definitions may be overridden in specific ARM standard platform */ |
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#pragma weak bl2u_platform_setup |
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#pragma weak bl2u_early_platform_setup |
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#pragma weak bl2u_plat_arch_setup |
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/*
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* Perform ARM standard platform setup for BL2U |
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*/ |
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void arm_bl2u_platform_setup(void) |
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{ |
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/* Initialize the secure environment */ |
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plat_arm_security_setup(); |
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} |
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void bl2u_platform_setup(void) |
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{ |
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arm_bl2u_platform_setup(); |
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} |
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void arm_bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info) |
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{ |
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/* Initialize the console to provide early debug support */ |
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console_init(PLAT_ARM_BOOT_UART_BASE, PLAT_ARM_BOOT_UART_CLK_IN_HZ, |
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ARM_CONSOLE_BAUDRATE); |
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} |
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/*******************************************************************************
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* BL1 can pass platform dependent information to BL2U in x1. |
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* In case of ARM CSS platforms x1 contains SCP_BL2U image info. |
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* In case of ARM FVP platforms x1 is not used. |
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* In both cases, x0 contains the extents of the memory available to BL2U |
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******************************************************************************/ |
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void bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info) |
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{ |
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arm_bl2u_early_platform_setup(mem_layout, plat_info); |
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} |
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/*******************************************************************************
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* Perform the very early platform specific architectural setup here. At the |
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* moment this is only initializes the mmu in a quick and dirty way. |
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* The memory that is used by BL2U is only mapped. |
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******************************************************************************/ |
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void arm_bl2u_plat_arch_setup(void) |
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{ |
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arm_configure_mmu_el1(BL2U_RO_LIMIT, |
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BL31_LIMIT, |
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BL2U_RO_BASE, |
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BL2U_RO_LIMIT |
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#if USE_COHERENT_MEM |
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, |
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BL2U_COHERENT_RAM_BASE, |
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BL2U_COHERENT_RAM_LIMIT |
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#endif |
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); |
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} |
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void bl2u_plat_arch_setup(void) |
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{ |
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arm_bl2u_plat_arch_setup(); |
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} |
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@ -0,0 +1,76 @@ |
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/*
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* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* Redistributions of source code must retain the above copyright notice, this |
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* list of conditions and the following disclaimer. |
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* |
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* Redistributions in binary form must reproduce the above copyright notice, |
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|
* this list of conditions and the following disclaimer in the documentation |
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|
* and/or other materials provided with the distribution. |
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|
* |
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* Neither the name of ARM nor the names of its contributors may be used |
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|
* to endorse or promote products derived from this software without specific |
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|
* prior written permission. |
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|
* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include <bl_common.h> |
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#include <debug.h> |
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#include <plat_arm.h> |
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#include "css_scp_bootloader.h" |
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/* Weak definition may be overridden in specific CSS based platform */ |
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#pragma weak bl2u_plat_handle_scp_bl2u |
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/* Data structure which holds the SCP_BL2U image info for BL2U */ |
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static image_info_t scp_bl2u_image_info; |
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/*******************************************************************************
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* BL1 can pass platform dependent information to BL2U in x1. |
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* In case of ARM CSS platforms x1 contains SCP_BL2U image info. |
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* In case of ARM FVP platforms x1 is not used. |
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* In both cases, x0 contains the extents of the memory available to BL2U |
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******************************************************************************/ |
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void bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info) |
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{ |
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if (!plat_info) |
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panic(); |
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arm_bl2u_early_platform_setup(mem_layout, plat_info); |
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scp_bl2u_image_info = *(image_info_t *)plat_info; |
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} |
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/*******************************************************************************
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* Transfer SCP_BL2U from Trusted RAM using the SCP Download protocol. |
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******************************************************************************/ |
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int bl2u_plat_handle_scp_bl2u(void) |
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{ |
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int ret; |
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INFO("BL2U: Initiating SCP_BL2U transfer to SCP\n"); |
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ret = scp_bootloader_transfer((void *)scp_bl2u_image_info.image_base, |
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scp_bl2u_image_info.image_size); |
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if (ret == 0) |
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INFO("BL2U: SCP_BL2U transferred to SCP\n"); |
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else |
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ERROR("BL2U: SCP_BL2U transfer failure\n"); |
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return ret; |
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} |
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