GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)
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/*
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* Copyright (c) 2017-2018, 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 <arch_helpers.h>
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#include <common/bl_common.h>
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#include <common/debug.h>
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#include <lib/mmio.h>
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#include <lib/xlat_tables/xlat_tables.h>
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#include <plat/common/platform.h>
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#include <hikey_def.h>
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#include <hikey_layout.h>
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#define MAP_DDR MAP_REGION_FLAT(DDR_BASE, \
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DDR_SIZE - DDR_SEC_SIZE, \
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MT_DEVICE | MT_RW | MT_NS)
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#define MAP_DEVICE MAP_REGION_FLAT(DEVICE_BASE, \
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DEVICE_SIZE, \
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MT_DEVICE | MT_RW | MT_SECURE)
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#define MAP_TSP_MEM MAP_REGION_FLAT(TSP_SEC_MEM_BASE, \
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TSP_SEC_MEM_SIZE, \
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MT_MEMORY | MT_RW | MT_SECURE)
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#define MAP_ROM_PARAM MAP_REGION_FLAT(XG2RAM0_BASE, \
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BL1_XG2RAM0_OFFSET, \
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MT_DEVICE | MT_RO | MT_SECURE)
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#define MAP_SRAM MAP_REGION_FLAT(SRAM_BASE, \
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SRAM_SIZE, \
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MT_DEVICE | MT_RW | MT_SECURE)
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/*
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* BL1 needs to access the areas of MMC_SRAM.
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* BL1 loads BL2 from eMMC into SRAM before DDR initialized.
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*/
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#define MAP_MMC_SRAM MAP_REGION_FLAT(HIKEY_BL1_MMC_DESC_BASE, \
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HIKEY_BL1_MMC_DESC_SIZE + \
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HIKEY_BL1_MMC_DATA_SIZE, \
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MT_DEVICE | MT_RW | MT_SECURE)
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/*
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* Table of regions for different BL stages to map using the MMU.
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* This doesn't include Trusted RAM as the 'mem_layout' argument passed to
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* hikey_init_mmu_elx() will give the available subset of that,
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*/
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#ifdef IMAGE_BL1
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static const mmap_region_t hikey_mmap[] = {
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MAP_DEVICE,
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MAP_ROM_PARAM,
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MAP_MMC_SRAM,
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{0}
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};
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#endif
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#ifdef IMAGE_BL2
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static const mmap_region_t hikey_mmap[] = {
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MAP_DDR,
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MAP_DEVICE,
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MAP_TSP_MEM,
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MAP_SRAM,
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{0}
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};
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#endif
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#ifdef IMAGE_BL31
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static const mmap_region_t hikey_mmap[] = {
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MAP_DEVICE,
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MAP_SRAM,
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MAP_TSP_MEM,
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{0}
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};
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#endif
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#ifdef IMAGE_BL32
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static const mmap_region_t hikey_mmap[] = {
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MAP_DEVICE,
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MAP_DDR,
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{0}
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};
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#endif
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/*
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* Macro generating the code for the function setting up the pagetables as per
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* the platform memory map & initialize the mmu, for the given exception level
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*/
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#define HIKEY_CONFIGURE_MMU_EL(_el) \
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void hikey_init_mmu_el##_el(unsigned long total_base, \
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unsigned long total_size, \
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unsigned long ro_start, \
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unsigned long ro_limit, \
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unsigned long coh_start, \
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unsigned long coh_limit) \
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{ \
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mmap_add_region(total_base, total_base, \
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total_size, \
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MT_MEMORY | MT_RW | MT_SECURE); \
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mmap_add_region(ro_start, ro_start, \
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ro_limit - ro_start, \
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MT_MEMORY | MT_RO | MT_SECURE); \
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mmap_add_region(coh_start, coh_start, \
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coh_limit - coh_start, \
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MT_DEVICE | MT_RW | MT_SECURE); \
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mmap_add(hikey_mmap); \
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init_xlat_tables(); \
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\
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enable_mmu_el##_el(0); \
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}
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/* Define EL1 and EL3 variants of the function initialising the MMU */
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HIKEY_CONFIGURE_MMU_EL(1)
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HIKEY_CONFIGURE_MMU_EL(3)
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unsigned long plat_get_ns_image_entrypoint(void)
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{
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return HIKEY_NS_IMAGE_OFFSET;
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}
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unsigned int plat_get_syscnt_freq2(void)
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{
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return 1200000;
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}
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+159
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/*
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* Copyright (c) 2017-2020, 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 <arch.h>
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#include <asm_macros.S>
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#include <hikey_def.h>
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.globl plat_my_core_pos
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.globl platform_mem_init
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.globl plat_crash_console_init
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.globl plat_crash_console_putc
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.globl plat_crash_console_flush
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.globl plat_report_exception
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.globl plat_reset_handler
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func plat_my_core_pos
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mrs x0, mpidr_el1
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and x1, x0, #MPIDR_CPU_MASK
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and x0, x0, #MPIDR_CLUSTER_MASK
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add x0, x1, x0, LSR #6
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ret
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endfunc plat_my_core_pos
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/* -----------------------------------------------------
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* void platform_mem_init(void);
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*
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* We don't need to carry out any memory initialization
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* on HIKEY. The Secure RAM is accessible straight away.
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* -----------------------------------------------------
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*/
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func platform_mem_init
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ret
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endfunc platform_mem_init
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/* ---------------------------------------------
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* int plat_crash_console_init(void)
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* Function to initialize the crash console
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* without a C Runtime to print crash report.
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* Clobber list : x0, x1, x2
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* ---------------------------------------------
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*/
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func plat_crash_console_init
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mov_imm x0, CRASH_CONSOLE_BASE
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mov_imm x1, PL011_UART_CLK_IN_HZ
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mov_imm x2, PL011_BAUDRATE
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b console_pl011_core_init
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endfunc plat_crash_console_init
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/* ---------------------------------------------
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* int plat_crash_console_putc(int c)
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* Function to print a character on the crash
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* console without a C Runtime.
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* Clobber list : x1, x2
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* ---------------------------------------------
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*/
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func plat_crash_console_putc
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mov_imm x1, CRASH_CONSOLE_BASE
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b console_pl011_core_putc
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endfunc plat_crash_console_putc
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/* ---------------------------------------------
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* void plat_crash_console_flush()
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* Function to force a write of all buffered
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* data that hasn't been output.
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* Out : void.
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* Clobber list : x0, x1
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* ---------------------------------------------
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*/
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func plat_crash_console_flush
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mov_imm x0, CRASH_CONSOLE_BASE
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b console_pl011_core_flush
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endfunc plat_crash_console_flush
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/* ---------------------------------------------
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* void plat_report_exception(unsigned int type)
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* Function to report an unhandled exception
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* with platform-specific means.
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* On HIKEY platform, it updates the LEDs
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* to indicate where we are
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* ---------------------------------------------
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*/
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func plat_report_exception
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mov x8, x30
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/* Turn on LED according to x0 (0 -- f) */
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ldr x2, =0xf7020000
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and x1, x0, #1
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str w1, [x2, #4]
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and x1, x0, #2
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str w1, [x2, #8]
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and x1, x0, #4
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str w1, [x2, #16]
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and x1, x0, #8
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str w1, [x2, #32]
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mrs x2, currentel
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and x2, x2, #0xc0
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/* Check EL1 */
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cmp x2, #0x04
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beq plat_report_el1
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adr x4, plat_err_str
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bl asm_print_str
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adr x4, esr_el3_str
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bl asm_print_str
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mrs x4, esr_el3
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bl asm_print_hex
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adr x4, elr_el3_str
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bl asm_print_str
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mrs x4, elr_el3
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bl asm_print_hex
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b plat_report_end
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plat_report_el1:
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adr x4, plat_err_str
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bl asm_print_str
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adr x4, esr_el1_str
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bl asm_print_str
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mrs x4, esr_el1
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bl asm_print_hex
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adr x4, elr_el1_str
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bl asm_print_str
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mrs x4, elr_el1
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bl asm_print_hex
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plat_report_end:
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mov x30, x8
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ret
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endfunc plat_report_exception
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/* -----------------------------------------------------
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* void plat_reset_handler(void);
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* -----------------------------------------------------
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*/
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func plat_reset_handler
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ret
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endfunc plat_reset_handler
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.section .rodata.rev_err_str, "aS"
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plat_err_str:
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.asciz "\nPlatform exception reporting:"
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esr_el3_str:
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.asciz "\nESR_EL3: "
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elr_el3_str:
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.asciz "\nELR_EL3: "
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esr_el1_str:
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.asciz "\nESR_EL1: "
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elr_el1_str:
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.asciz "\nELR_EL1: "
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