rt-thread-official/libcpu/arm/am335x
YangZhongQing 50cb4be8ce
bsp beaglebone: add IAR support (#6443)
* bsp beaglebone: add IAR template files and fix it's build error

ATTENTION:
project.* was generated by scons, so I add it to gitignore.
rtconfig.py *FLAGS located in "PLATFORM == 'iccarm'" are unverified and maybe wrong.
(我只是从STM32里面抄来,然后根据自己的理解改了一下,并没有验证这些参数的正确性,
我也不知道怎么用命令行调用这些参数来编译)

* bsp beaglebone: add beaglebone_ram.icf ROM address from uboot_cmd.txt

am335x_DDR.icf use 0x82000000, different to uboot_cmd.txt & gcc beaglebone_ram.lds,
the difference will easy cause later developer got below error:

=> go 0x80200000
## Starting application at 0x80200000 ...
undefined instruction
pc : [<8200956c>]	   lr : [<8ff62497>]
reloc pc : [<728a956c>]	   lr : [<80802497>]
sp : 8df37358  ip : 00000000	 fp : 00000002
r10: 8df4d448  r9 : 8df3feb8	 r8 : 8ffd30f8
r7 : 8ff78089  r6 : 00000002	 r5 : 80200000  r4 : 8df4d44c
r3 : 80200000  r2 : 8df4d44c	 r1 : 8df4d44c  r0 : 00000001
Flags: nzCv  IRQs off  FIQs on  Mode SVC_32
Code: 5dbffcdd bb9bdf7f abf85423 eff1f77f (7ed7daaf)
Resetting CPU ...

resetting ...

* libcpu am335x: context_iar.S rt_hw_context_switch: add thumb mode support

IAR new project defualt Processor mode is Thumb, this will cause user
easy occur the following error:
...
msh />Execption:
r00:0x8800aaa8 r01:0x802080c5 r02:0x00000000 r03:0x88009b4c
r04:0x00001000 r05:0x00000000 r06:0x00001403 r07:0x00100000
r08:0x00000000 r09:0x00000000 r10:0x0000000a
fp :0x0000000a ip :0x65687374
sp :0x00006c6c lr :0x0000008a pc :0x88008be0
cpsr:0x880001bc
software interrupt
shutdown...
(0) assertion failed at function:rt_hw_cpu_shutdown, line number:160

* bsp beaglebone: change IAR template.ewp code use Arm mode

Arm mode bin size will bigger than Thumb mode

* libcpu am335x: IAR: use rt_hw_cpu_dcache_enable instead of rt_cpu_dcache_enable

Reviewer mysterywolf say:
麻烦把rt_cpu_icache_enable 和 rt_cpu_dcache_enable, 统一改成 rt_hw_cpu_icache_enable 和 rt_hw_cpu_dcache_enable
rt_hw_cpu_icache_enable 和 rt_hw_cpu_dcache_enable 是其他bsp也是这么命名的 这是个命名统一的函数
2022-09-22 14:13:34 +08:00
..
SConscript [Scons][iar][iccarm] IAR统一使用iccarm作为判断条件而不是是用IDE的名字来进行判断 2022-06-09 07:01:59 +08:00
am33xx.h 完善bsp beaglebone的基本使用 (#6434) 2022-09-15 23:56:31 -04:00
context_gcc.S [license] Change the license of libarm to Apache. 2018-10-15 01:35:07 +08:00
context_iar.S bsp beaglebone: add IAR support (#6443) 2022-09-22 14:13:34 +08:00
cp15_gcc.S [asm] 解决tab和空格混用的问题 2022-01-20 20:57:35 +08:00
cp15_iar.s [asm] 解决tab和空格混用的问题 2022-01-20 20:57:35 +08:00
cpu.c bsp beaglebone: add IAR support (#6443) 2022-09-22 14:13:34 +08:00
interrupt.c 完善bsp beaglebone的基本使用 (#6434) 2022-09-15 23:56:31 -04:00
interrupt.h 完善bsp beaglebone的基本使用 (#6434) 2022-09-15 23:56:31 -04:00
mmu.c bsp beaglebone: add IAR support (#6443) 2022-09-22 14:13:34 +08:00
mmu.h [libcpu] auto formatted 2021-03-27 17:51:56 +08:00
stack.c [libcpu] auto formatted 2021-03-27 17:51:56 +08:00
start_gcc.S [asm] 解决tab和空格混用的问题 2022-01-20 20:57:35 +08:00
start_iar.s [asm] 解决tab和空格混用的问题 2022-01-20 20:57:35 +08:00
trap.c FINSH_USING_BUILT_IN_COMMANDS改MSH_USING_BUILT_IN_COMMANDS 2021-08-28 16:48:08 -04:00
vector_gcc.S [asm] 解决tab和空格混用的问题 2022-01-20 20:57:35 +08:00