luckfox-pico-sdk/sysdrv/source/mcu/rt-thread/libcpu/arm/am335x/cp15_iar.s
luckfox-eng29 8f34c2760d project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches.
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
2024-10-14 09:47:04 +08:00

140 lines
3.5 KiB
ArmAsm

/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2015-04-06 zchong change to iar compiler from convert from cp15_gcc.S
*/
SECTION .text:CODE:NOROOT(2)
ARM
EXPORT rt_cpu_vector_set_base
rt_cpu_vector_set_base:
MCR p15, #0, r0, c12, c0, #0
DSB
BX lr
EXPORT rt_cpu_vector_get_base
rt_cpu_vector_get_base:
MRC p15, #0, r0, c12, c0, #0
BX lr
EXPORT rt_cpu_get_sctlr
rt_cpu_get_sctlr:
MRC p15, #0, r0, c1, c0, #0
BX lr
EXPORT rt_cpu_dcache_enable
rt_cpu_dcache_enable:
MRC p15, #0, r0, c1, c0, #0
ORR r0, r0, #0x00000004
MCR p15, #0, r0, c1, c0, #0
BX lr
EXPORT rt_cpu_icache_enable
rt_cpu_icache_enable:
MRC p15, #0, r0, c1, c0, #0
ORR r0, r0, #0x00001000
MCR p15, #0, r0, c1, c0, #0
BX lr
;_FLD_MAX_WAY DEFINE 0x3ff
;_FLD_MAX_IDX DEFINE 0x7ff
EXPORT rt_cpu_dcache_clean_flush
rt_cpu_dcache_clean_flush:
PUSH {r4-r11}
DMB
MRC p15, #1, r0, c0, c0, #1 ; read clid register
ANDS r3, r0, #0x7000000 ; get level of coherency
MOV r3, r3, lsr #23
BEQ finished
MOV r10, #0
loop1:
ADD r2, r10, r10, lsr #1
MOV r1, r0, lsr r2
AND r1, r1, #7
CMP r1, #2
BLT skip
MCR p15, #2, r10, c0, c0, #0
ISB
MRC p15, #1, r1, c0, c0, #0
AND r2, r1, #7
ADD r2, r2, #4
;LDR r4, _FLD_MAX_WAY
LDR r4, =0x3FF
ANDS r4, r4, r1, lsr #3
CLZ r5, r4
;LDR r7, _FLD_MAX_IDX
LDR r7, =0x7FF
ANDS r7, r7, r1, lsr #13
loop2:
MOV r9, r4
loop3:
ORR r11, r10, r9, lsl r5
ORR r11, r11, r7, lsl r2
MCR p15, #0, r11, c7, c14, #2
SUBS r9, r9, #1
BGE loop3
SUBS r7, r7, #1
BGE loop2
skip:
ADD r10, r10, #2
CMP r3, r10
BGT loop1
finished:
DSB
ISB
POP {r4-r11}
BX lr
EXPORT rt_cpu_dcache_disable
rt_cpu_dcache_disable:
PUSH {r4-r11, lr}
MRC p15, #0, r0, c1, c0, #0
BIC r0, r0, #0x00000004
MCR p15, #0, r0, c1, c0, #0
BL rt_cpu_dcache_clean_flush
POP {r4-r11, lr}
BX lr
EXPORT rt_cpu_icache_disable
rt_cpu_icache_disable:
MRC p15, #0, r0, c1, c0, #0
BIC r0, r0, #0x00001000
MCR p15, #0, r0, c1, c0, #0
BX lr
EXPORT rt_cpu_mmu_disable
rt_cpu_mmu_disable:
MCR p15, #0, r0, c8, c7, #0 ; invalidate tlb
MRC p15, #0, r0, c1, c0, #0
BIC r0, r0, #1
MCR p15, #0, r0, c1, c0, #0 ; clear mmu bit
DSB
BX lr
EXPORT rt_cpu_mmu_enable
rt_cpu_mmu_enable:
MRC p15, #0, r0, c1, c0, #0
ORR r0, r0, #0x001
MCR p15, #0, r0, c1, c0, #0 ; set mmu enable bit
DSB
BX lr
EXPORT rt_cpu_tlb_set
rt_cpu_tlb_set:
MCR p15, #0, r0, c2, c0, #0
DMB
BX lr
END