diff options
Diffstat (limited to 'plat/common/aarch32')
| -rw-r--r-- | plat/common/aarch32/crash_console_helpers.S | 68 | ||||
| -rw-r--r-- | plat/common/aarch32/plat_common.c | 21 | ||||
| -rw-r--r-- | plat/common/aarch32/plat_sp_min_common.c | 25 | ||||
| -rw-r--r-- | plat/common/aarch32/platform_helpers.S | 89 | ||||
| -rw-r--r-- | plat/common/aarch32/platform_mp_stack.S | 47 | ||||
| -rw-r--r-- | plat/common/aarch32/platform_up_stack.S | 47 |
6 files changed, 297 insertions, 0 deletions
diff --git a/plat/common/aarch32/crash_console_helpers.S b/plat/common/aarch32/crash_console_helpers.S new file mode 100644 index 0000000..ea04f56 --- /dev/null +++ b/plat/common/aarch32/crash_console_helpers.S @@ -0,0 +1,68 @@ +/* + * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* + * If a platform wishes to use the functions in this file it has to be added to + * the Makefile of the platform. It is not included in the common Makefile. + */ + +#include <asm_macros.S> +#include <drivers/console.h> + + .globl plat_crash_console_init + .globl plat_crash_console_putc + .globl plat_crash_console_flush + + /* ----------------------------------------------------- + * int plat_crash_console_init(void) + * Use normal console by default. Switch it to crash + * mode so serial consoles become active again. + * NOTE: This default implementation will only work for + * crashes that occur after a normal console (marked + * valid for the crash state) has been registered with + * the console framework. To debug crashes that occur + * earlier, the platform has to override these functions + * with an implementation that initializes a console + * driver with hardcoded parameters. See + * docs/porting-guide.rst for more information. + * ----------------------------------------------------- + */ +func plat_crash_console_init +#if defined(IMAGE_BL1) + /* + * BL1 code can possibly crash so early that the data segment is not yet + * accessible. Don't risk undefined behavior by trying to run the normal + * console framework. Platforms that want to debug BL1 will need to + * override this with custom functions that can run from registers only. + */ + mov r0, #0 + bx lr +#else /* IMAGE_BL1 */ + mov r3, lr + mov r0, #CONSOLE_FLAG_CRASH + bl console_switch_state + mov r0, #1 + bx r3 +#endif +endfunc plat_crash_console_init + + /* ----------------------------------------------------- + * void plat_crash_console_putc(int character) + * Output through the normal console by default. + * ----------------------------------------------------- + */ +func plat_crash_console_putc + b console_putc +endfunc plat_crash_console_putc + + /* ----------------------------------------------------- + * void plat_crash_console_flush(void) + * Flush normal console by default. + * ----------------------------------------------------- + */ +func plat_crash_console_flush + b console_flush +endfunc plat_crash_console_flush diff --git a/plat/common/aarch32/plat_common.c b/plat/common/aarch32/plat_common.c new file mode 100644 index 0000000..2c1a8fa --- /dev/null +++ b/plat/common/aarch32/plat_common.c @@ -0,0 +1,21 @@ +/* + * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <lib/xlat_tables/xlat_mmu_helpers.h> +#include <plat/common/platform.h> + +/* + * The following platform setup functions are weakly defined. They + * provide typical implementations that may be re-used by multiple + * platforms but may also be overridden by a platform if required. + */ +#pragma weak bl32_plat_enable_mmu + + +void bl32_plat_enable_mmu(uint32_t flags) +{ + enable_mmu_svc_mon(flags); +} diff --git a/plat/common/aarch32/plat_sp_min_common.c b/plat/common/aarch32/plat_sp_min_common.c new file mode 100644 index 0000000..9493587 --- /dev/null +++ b/plat/common/aarch32/plat_sp_min_common.c @@ -0,0 +1,25 @@ +/* + * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <drivers/console.h> +#include <plat/common/platform.h> +#include <platform_sp_min.h> + +/* + * The following platform setup functions are weakly defined. They + * provide typical implementations that may be re-used by multiple + * platforms but may also be overridden by a platform if required. + */ +#pragma weak sp_min_plat_runtime_setup + +void sp_min_plat_runtime_setup(void) +{ + /* + * Finish the use of console driver in SP_MIN so that any runtime logs + * from SP_MIN will be suppressed. + */ + console_switch_state(CONSOLE_FLAG_RUNTIME); +} diff --git a/plat/common/aarch32/platform_helpers.S b/plat/common/aarch32/platform_helpers.S new file mode 100644 index 0000000..75cc456 --- /dev/null +++ b/plat/common/aarch32/platform_helpers.S @@ -0,0 +1,89 @@ +/* + * Copyright (c) 2016-2022, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch.h> +#include <asm_macros.S> + + .weak plat_report_exception + .weak plat_report_prefetch_abort + .weak plat_report_data_abort + .weak plat_reset_handler + .weak plat_disable_acp + .weak bl1_plat_prepare_exit + .weak platform_mem_init + .weak plat_panic_handler + + /* ----------------------------------------------------- + * Placeholder function which should be redefined by + * each platform. + * ----------------------------------------------------- + */ +func plat_report_exception + bx lr +endfunc plat_report_exception + + /* ----------------------------------------------------- + * Placeholder function which should be redefined by + * each platform. + * ----------------------------------------------------- + */ +func plat_report_prefetch_abort + bx lr +endfunc plat_report_prefetch_abort + + /* ----------------------------------------------------- + * Placeholder function which should be redefined by + * each platform. + * ----------------------------------------------------- + */ +func plat_report_data_abort + bx lr +endfunc plat_report_data_abort + + /* ----------------------------------------------------- + * Placeholder function which should be redefined by + * each platform. + * ----------------------------------------------------- + */ +func plat_reset_handler + bx lr +endfunc plat_reset_handler + + /* ----------------------------------------------------- + * Placeholder function which should be redefined by + * each platform. + * ----------------------------------------------------- + */ +func plat_disable_acp + bx lr +endfunc plat_disable_acp + + /* --------------------------------------------------------------------- + * Placeholder function which should be redefined by + * each platform. + * --------------------------------------------------------------------- + */ +func platform_mem_init + bx lr +endfunc platform_mem_init + + /* ----------------------------------------------------- + * void bl1_plat_prepare_exit(entry_point_info_t *ep_info); + * Called before exiting BL1. Default: do nothing + * ----------------------------------------------------- + */ +func bl1_plat_prepare_exit + bx lr +endfunc bl1_plat_prepare_exit + + /* ----------------------------------------------------- + * void plat_panic_handler(void) __dead2; + * Endless loop by default. + * ----------------------------------------------------- + */ +func plat_panic_handler + b plat_panic_handler +endfunc plat_panic_handler diff --git a/plat/common/aarch32/platform_mp_stack.S b/plat/common/aarch32/platform_mp_stack.S new file mode 100644 index 0000000..314e87a --- /dev/null +++ b/plat/common/aarch32/platform_mp_stack.S @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch.h> +#include <asm_macros.S> +#include <platform_def.h> + + .weak plat_get_my_stack + .weak plat_set_my_stack + + /* ----------------------------------------------------- + * uintptr_t plat_get_my_stack (u_register_t mpidr) + * + * For a given CPU, this function returns the stack + * pointer for a stack allocated in device memory. + * ----------------------------------------------------- + */ +func plat_get_my_stack + push {r4, lr} + get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE + pop {r4, pc} +endfunc plat_get_my_stack + + /* ----------------------------------------------------- + * void plat_set_my_stack () + * + * For the current CPU, this function sets the stack + * pointer to a stack allocated in normal memory. + * ----------------------------------------------------- + */ +func plat_set_my_stack + mov r4, lr + get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE + mov sp, r0 + bx r4 +endfunc plat_set_my_stack + + /* ----------------------------------------------------- + * Per-cpu stacks in normal memory. Each cpu gets a + * stack of PLATFORM_STACK_SIZE bytes. + * ----------------------------------------------------- + */ +declare_stack platform_normal_stacks, .tzfw_normal_stacks, \ + PLATFORM_STACK_SIZE, PLATFORM_CORE_COUNT diff --git a/plat/common/aarch32/platform_up_stack.S b/plat/common/aarch32/platform_up_stack.S new file mode 100644 index 0000000..69e112f --- /dev/null +++ b/plat/common/aarch32/platform_up_stack.S @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch.h> +#include <asm_macros.S> +#include <platform_def.h> + + .weak plat_get_my_stack + .weak plat_set_my_stack + + /* ----------------------------------------------------- + * unsigned long plat_get_my_stack () + * + * For cold-boot BL images, only the primary CPU needs + * a stack. This function returns the stack pointer for + * a stack allocated in normal memory. + * ----------------------------------------------------- + */ +func plat_get_my_stack + get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE + bx lr +endfunc plat_get_my_stack + + /* ----------------------------------------------------- + * void plat_set_my_stack () + * + * For cold-boot BL images, only the primary CPU needs + * a stack. This function sets the stack pointer to a + * stack allocated in normal memory. + * ----------------------------------------------------- + */ +func plat_set_my_stack + get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE + mov sp, r0 + bx lr +endfunc plat_set_my_stack + + /* ----------------------------------------------------- + * Per-cpu stacks in normal memory. Each cpu gets a + * stack of PLATFORM_STACK_SIZE bytes. + * ----------------------------------------------------- + */ +declare_stack platform_normal_stacks, .tzfw_normal_stacks, \ + PLATFORM_STACK_SIZE, 1, CACHE_WRITEBACK_GRANULE |