* bsp beaglebone: rerun menuconfg
* bsp beaglebone: add uart0 support
* bsp beaglebone: use uart0 as console
* bsp beaglebone: add heap init
fix rt_application_init() error:
(m != RT_NULL) assertion failed at function:rt_smem_alloc, line number:288
* bsp beaglebone: add mmu & interrupt init
must init mmu, otherwise no interrupt is generated, cause scheduler can't work.
I don't know why need mmu, just seen: bsp/rockchip/rk3568/driver/board.c
* libcpu am335x: reset interrupt controller before init vector
I think reset before init is more better
AM335X_StarterWare_02_00_01_01\system_config\armv7a\am335x\interrupt.c
IntAINTCInit()
* bsp beaglebone: full gpio driver support
* bsp beaglebone: add tftpboot way to uboot_cmd.txt
* bsp beaglebone: optimize am33xx_gpio_hdr, check irqstatus is the last one
Co-authored-by: YangZhongQing <vipox@qq.com>
Since the 16 domains are configured as the client domains in
mmu_setttbase(), a Permission fault is generated if the XN bit
(Execute-never) is set in the short-descriptor translation table
(for section and supersection). This leads to the booting failure
when enabling MMU for beagleboard bsp. Here is log:
----------------------------------------------------------------
SD/MMC found on device 0
reading uEnv.txt
117 bytes read in 3 ms (38.1 KiB/s)
Loaded environment from uEnv.txt
Importing environment from mmc ...
Running uenvcmd ...
reading rtthread.bin
162624 bytes read in 24 ms (6.5 MiB/s)
\## Starting application at 0x80200000 ...
----------------------------------------------------------------
This commit removes the XN bit configuration in the section of the
short-descriptor translation table. The OS can be booted successfully
with applying this commit.
