diff options
Diffstat (limited to '')
| -rw-r--r-- | plat/rockchip/common/aarch64/plat_helpers.S | 163 | ||||
| -rw-r--r-- | plat/rockchip/common/aarch64/platform_common.c | 87 | ||||
| -rw-r--r-- | plat/rockchip/common/aarch64/pmu_sram_cpus_on.S | 52 |
3 files changed, 302 insertions, 0 deletions
diff --git a/plat/rockchip/common/aarch64/plat_helpers.S b/plat/rockchip/common/aarch64/plat_helpers.S new file mode 100644 index 0000000..4af052b --- /dev/null +++ b/plat/rockchip/common/aarch64/plat_helpers.S @@ -0,0 +1,163 @@ +/* + * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <platform_def.h> + +#include <arch.h> +#include <asm_macros.S> +#include <common/bl_common.h> +#include <cortex_a53.h> +#include <cortex_a72.h> +#include <plat_private.h> +#include <plat_pmu_macros.S> + + .globl cpuson_entry_point + .globl cpuson_flags + .globl platform_cpu_warmboot + .globl plat_secondary_cold_boot_setup + .globl plat_report_exception + .globl plat_is_my_cpu_primary + .globl plat_my_core_pos + .globl plat_reset_handler + .globl plat_panic_handler + + /* + * void plat_reset_handler(void); + * + * Determine the SOC type and call the appropriate reset + * handler. + * + */ +func plat_reset_handler + mrs x0, midr_el1 + ubfx x0, x0, MIDR_PN_SHIFT, #12 + cmp w0, #((CORTEX_A72_MIDR >> MIDR_PN_SHIFT) & MIDR_PN_MASK) + b.eq handler_a72 + b handler_end +handler_a72: + /* + * This handler does the following: + * Set the L2 Data RAM latency for Cortex-A72. + * Set the L2 Tag RAM latency to for Cortex-A72. + */ + mov x0, #((5 << CORTEX_A72_L2CTLR_DATA_RAM_LATENCY_SHIFT) | \ + (0x1 << 5)) + msr CORTEX_A72_L2CTLR_EL1, x0 + isb +handler_end: + ret +endfunc plat_reset_handler + +func plat_my_core_pos + mrs x0, mpidr_el1 + and x1, x0, #MPIDR_CPU_MASK + and x0, x0, #MPIDR_CLUSTER_MASK + add x0, x1, x0, LSR #PLAT_RK_CLST_TO_CPUID_SHIFT + ret +endfunc plat_my_core_pos + + /* -------------------------------------------------------------------- + * void plat_secondary_cold_boot_setup (void); + * + * This function performs any platform specific actions + * needed for a secondary cpu after a cold reset e.g + * mark the cpu's presence, mechanism to place it in a + * holding pen etc. + * -------------------------------------------------------------------- + */ +func plat_secondary_cold_boot_setup + /* rk3368 does not do cold boot for secondary CPU */ +cb_panic: + b cb_panic +endfunc plat_secondary_cold_boot_setup + +func plat_is_my_cpu_primary + mrs x0, mpidr_el1 + and x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK) + cmp x0, #PLAT_RK_PRIMARY_CPU + cset x0, eq + ret +endfunc plat_is_my_cpu_primary + + /* -------------------------------------------------------------------- + * void plat_panic_handler(void) + * Call system reset function on panic. Set up an emergency stack so we + * can run C functions (it only needs to last for a few calls until we + * reboot anyway). + * -------------------------------------------------------------------- + */ +func plat_panic_handler + msr spsel, #0 + bl plat_set_my_stack + b rockchip_soc_soft_reset +endfunc plat_panic_handler + + /* -------------------------------------------------------------------- + * void platform_cpu_warmboot (void); + * cpus online or resume enterpoint + * -------------------------------------------------------------------- + */ +func platform_cpu_warmboot _align=16 + mrs x0, MPIDR_EL1 + and x19, x0, #MPIDR_CPU_MASK + and x20, x0, #MPIDR_CLUSTER_MASK + mov x0, x20 + func_rockchip_clst_warmboot + /* -------------------------------------------------------------------- + * big cluster id is 1 + * big cores id is from 0-3, little cores id 4-7 + * -------------------------------------------------------------------- + */ + add x21, x19, x20, lsr #PLAT_RK_CLST_TO_CPUID_SHIFT + /* -------------------------------------------------------------------- + * get per cpuup flag + * -------------------------------------------------------------------- + */ + adr x4, cpuson_flags + add x4, x4, x21, lsl #2 + ldr w1, [x4] + /* -------------------------------------------------------------------- + * check cpuon reason + * -------------------------------------------------------------------- + */ + cmp w1, PMU_CPU_AUTO_PWRDN + b.eq boot_entry + cmp w1, PMU_CPU_HOTPLUG + b.eq boot_entry + /* -------------------------------------------------------------------- + * If the boot core cpuson_flags or cpuson_entry_point is not + * expection. force the core into wfe. + * -------------------------------------------------------------------- + */ +wfe_loop: + wfe + b wfe_loop +boot_entry: + str wzr, [x4] + /* -------------------------------------------------------------------- + * get per cpuup boot addr + * -------------------------------------------------------------------- + */ + adr x5, cpuson_entry_point + ldr x2, [x5, x21, lsl #3] + br x2 +endfunc platform_cpu_warmboot + + /* -------------------------------------------------------------------- + * Per-CPU Secure entry point - resume or power up + * -------------------------------------------------------------------- + */ + .section tzfw_coherent_mem, "a" + .align 3 +cpuson_entry_point: + .rept PLATFORM_CORE_COUNT + .quad 0 + .endr +cpuson_flags: + .rept PLATFORM_CORE_COUNT + .word 0 + .endr +rockchip_clst_warmboot_data diff --git a/plat/rockchip/common/aarch64/platform_common.c b/plat/rockchip/common/aarch64/platform_common.c new file mode 100644 index 0000000..81e8520 --- /dev/null +++ b/plat/rockchip/common/aarch64/platform_common.c @@ -0,0 +1,87 @@ +/* + * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <string.h> + +#include <platform_def.h> + +#include <arch_helpers.h> +#include <common/bl_common.h> +#include <common/debug.h> +#include <drivers/arm/cci.h> +#include <lib/utils.h> +#include <lib/xlat_tables/xlat_tables.h> + +#include <plat_private.h> + +#ifdef PLAT_RK_CCI_BASE +static const int cci_map[] = { + PLAT_RK_CCI_CLUSTER0_SL_IFACE_IX, + PLAT_RK_CCI_CLUSTER1_SL_IFACE_IX +}; +#endif + +/****************************************************************************** + * Macro generating the code for the function setting up the pagetables as per + * the platform memory map & initialize the mmu, for the given exception level + ******************************************************************************/ +#define DEFINE_CONFIGURE_MMU_EL(_el) \ + void plat_configure_mmu_el ## _el(unsigned long total_base, \ + unsigned long total_size, \ + unsigned long ro_start, \ + unsigned long ro_limit, \ + unsigned long coh_start, \ + unsigned long coh_limit) \ + { \ + mmap_add_region(total_base, total_base, \ + total_size, \ + MT_MEMORY | MT_RW | MT_SECURE); \ + mmap_add_region(ro_start, ro_start, \ + ro_limit - ro_start, \ + MT_MEMORY | MT_RO | MT_SECURE); \ + mmap_add_region(coh_start, coh_start, \ + coh_limit - coh_start, \ + MT_DEVICE | MT_RW | MT_SECURE); \ + mmap_add(plat_rk_mmap); \ + rockchip_plat_mmu_el##_el(); \ + init_xlat_tables(); \ + \ + enable_mmu_el ## _el(0); \ + } + +/* Define EL3 variants of the function initialising the MMU */ +DEFINE_CONFIGURE_MMU_EL(3) + +unsigned int plat_get_syscnt_freq2(void) +{ + return SYS_COUNTER_FREQ_IN_TICKS; +} + +void plat_cci_init(void) +{ +#ifdef PLAT_RK_CCI_BASE + /* Initialize CCI driver */ + cci_init(PLAT_RK_CCI_BASE, cci_map, ARRAY_SIZE(cci_map)); +#endif +} + +void plat_cci_enable(void) +{ + /* + * Enable CCI coherency for this cluster. + * No need for locks as no other cpu is active at the moment. + */ +#ifdef PLAT_RK_CCI_BASE + cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr())); +#endif +} + +void plat_cci_disable(void) +{ +#ifdef PLAT_RK_CCI_BASE + cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr())); +#endif +} diff --git a/plat/rockchip/common/aarch64/pmu_sram_cpus_on.S b/plat/rockchip/common/aarch64/pmu_sram_cpus_on.S new file mode 100644 index 0000000..d91ee0e --- /dev/null +++ b/plat/rockchip/common/aarch64/pmu_sram_cpus_on.S @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch.h> +#include <asm_macros.S> +#include <platform_def.h> + + .globl pmu_cpuson_entrypoint + .macro pmusram_entry_func _name + .section .pmusram.entry, "ax" + .type \_name, %function + .cfi_startproc + \_name: + .endm + +pmusram_entry_func pmu_cpuson_entrypoint + +#if PSRAM_CHECK_WAKEUP_CPU +check_wake_cpus: + mrs x0, MPIDR_EL1 + and x1, x0, #MPIDR_CPU_MASK + and x0, x0, #MPIDR_CLUSTER_MASK + orr x0, x0, x1 + + /* primary_cpu */ + ldr w1, boot_mpidr + cmp w0, w1 + b.eq sys_wakeup + + /* + * If the core is not the primary cpu, + * force the core into wfe. + */ +wfe_loop: + wfe + b wfe_loop +sys_wakeup: +#endif + +#if PSRAM_DO_DDR_RESUME +ddr_resume: + ldr x2, =__bl31_sram_stack_end + mov sp, x2 + bl dmc_resume +#endif + bl sram_restore +sys_resume: + bl bl31_warm_entrypoint +endfunc pmu_cpuson_entrypoint |