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zenghc

如题，IO资源比较紧张，将PF2设置成串口的RX0，无法接收到串口数据。PF4设置为TX0，可以发送数据。将PF2设置为通用IO口，输入和输出功能正常。请问是否需要特殊的配置，才能将PF2设置为RX0？

zenghc

@whycan daudio0_used = 0
是配置这个节点吗？
[audiocodec_machine]
audiocodec_machine_used = 1
dachpf_cfg = 1

zenghc

@whycan 没用到I2S，使用内部的HPR和HPL输出。

zenghc

tina linux v3.5.1，采用的f1c200s芯片，请问我的配置是否有问题？

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 3.10.65 (root@DESKTOP-9GG4A3K) (gcc version 6.4.1 (OpenWrt/Linaro GCC 6.4-2017.11 2017-11) ) #89 Fri Jun 23 02:27:50 UTC 2023
[    0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] Machine: Allwinner A1X (Device Tree), model: sun3iw1p1
[    0.000000] bootconsole [earlycon0] enabled
[    0.000000] cma: CMA: reserved 4 MiB at 83c00000
[    0.000000] Memory policy: ECC disabled, Data cache writeback
[    0.000000] On node 0 totalpages: 16384
[    0.000000] free_area_init_node: node 0, pgdat c057fbc4, node_mem_map c059c000
[    0.000000]   Normal zone: 128 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 16384 pages, LIFO batch:3
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0 
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
[    0.000000] Kernel command line: enforcing=1 earlyprintk=sunxi-uart,0x01c25000 initcall_debug=0 console=ttyS1,115200 loglevel=8 root=/dev/mtdblock4 init=/pseudo_init rdinit=/rdinit partitions=bootlogo@mtdblock1:env@mtdblock2:boot@
mtdblock3:rootfs@mtdblock4:rootfs_data@mtdblock5:misc@mtdblock6:private@mtdblock7:UDISK@mtdblock8 cma=4M fb_base=0x83f00000 androidboot.serialno=<NULL> boot_type=3
[    0.000000] PID hash table entries: 256 (order: -2, 1024 bytes)
[    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Memory: 64MB = 64MB total
[    0.000000] Memory: 54972k/54972k available, 10564k reserved, 0K highmem
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     vmalloc : 0xc4800000 - 0xff000000   ( 936 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xc4000000   (  64 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)
[    0.000000]       .text : 0xc0008000 - 0xc0467f84   (4480 kB)
[    0.000000]       .init : 0xc0468000 - 0xc0487a40   ( 127 kB)
[    0.000000]       .data : 0xc0488000 - 0xc05804c8   ( 994 kB)
[    0.000000]        .bss : 0xc05804c8 - 0xc059bcd0   ( 111 kB)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:256
[    0.000000] of_sunxi_clocks_init : sunxi_clk_base[0xf1c20000]
[    0.000000] pll_cpu-set_default_rate=552000000 success!
[    0.000000] pll_video-set_default_rate=297000000 success!
[    0.000000] pll_ddr-set_default_rate=312000000 success!
[    0.000000] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms
[    0.000000] Console: colour dummy device 80x30
[    0.005331] Calibrating delay loop... 275.25 BogoMIPS (lpj=1376256)
[    0.075244] pid_max: default: 32768 minimum: 301
[    0.080422] Mount-cache hash table entries: 512
[    0.086399] CPU: Testing write buffer coherency: ok
[    0.092189] Setting up static identity map for 0xc035f868 - 0xc035f8c0
[    0.101431] devtmpfs: initialized
[    0.106975] pinctrl core: initialized pinctrl subsystem
[    0.113557] NET: Registered protocol family 16
[    0.121444] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.129096] dump_class_init,844, success
[    0.137615] sun3iw1p1-pinctrl pio: initialized sunXi PIO driver
[    0.162152] bio: create slab <bio-0> at 0
[    0.167508] pwm module init!
[    0.172250] SCSI subsystem initialized
[    0.176511] usbcore: registered new interface driver usbfs
[    0.182290] usbcore: registered new interface driver hub
[    0.188174] usbcore: registered new device driver usb
[    0.199375] Linux video capture interface: v2.00
[    0.204771] Advanced Linux Sound Architecture Driver Initialized.
[    0.212701] Switching to clocksource sun3i high-res couter
[    0.237652] get det_vbus is fail, 84
[    0.243119] NET: Registered protocol family 2
[    0.249622] TCP established hash table entries: 512 (order: 0, 4096 bytes)
[    0.256730] TCP bind hash table entries: 512 (order: -1, 2048 bytes)
[    0.263391] TCP: Hash tables configured (established 512 bind 512)
[    0.269937] TCP: reno registered
[    0.273333] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.279439] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.286432] NET: Registered protocol family 1
[    0.306788] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.313453] jffs2: version 2.2. © 2001-2006 Red Hat, Inc.
[    0.320399] msgmni has been set to 115
[    0.327622] io scheduler noop registered
[    0.331934] io scheduler cfq registered (default)
[    0.336809] [pm]aw_pm_init!
[    0.340142] [pm]valid
[    0.342550] [pm]valid
[    0.345672] [DISP]disp_module_init
[    0.351961] /soc/lcd0@01c0c000: could not find phandle
[    0.408507] pll_freq=297000000HZ, lcd_dclk_freq=33000000HZ, clk_div=9
[    0.415885] num_screens=1
[    0.418740] screen_id=0
[    0.421320] para->mclk[MOD_CLK_LCD1CH0]=0xc340c340
[    0.426270] para->mclk[MOD_CLK_LCD1CH1]=0xc340c440
[    0.431261] disp tv init
[    0.433929] tcon_clk=0xc340c340, tcon_clk_parent=0x0
[    0.439094] tcon_clk=0xc340c340, tcon_clk_parent=0xc3404400
[    0.444841] tve_clk=0xc340c440, tve_clk_parent=0xc3404400
[    0.450438] disp al tv init
[    0.456090] fetch script datadisp.screen2_output_type fail
[    0.462181] fetch script datadisp.screen2_output_mode fail
[    0.470560] fetch script datadisp.fb2_format fail
[    0.475738] fetch script datadisp.fb2_scaler_mode_enable fail
[    0.482048] fetch script datadisp.fb2_width fail
[    0.487134] fetch script datadisp.fb2_height fail
[    0.506669] [DISP] Fb_map_kernel_logo,line:561:    this is not a bmp picture
[    0.518597] [DISP]disp_module_init finish
[    0.537116] uart1: ttyS1 at MMIO 0x1c25400 (irq = 104) is a SUNXI
[    0.543558] sw_console_setup()1324 - console setup baud 115200 parity n bits 8, flow n
[    0.551773] console [ttyS1] enabled, bootconsole disabled
[    0.551773] console [ttyS1] enabled, bootconsole disabled
[    0.564342] misc dump reg init
[    0.568910] lradc_battery_probe:lradc_battery_probe ++++++
[    0.575017] lradc_battery_dts_parse:lradc_battery_dts_parse ++++++
[    0.581993] key base: f1c23400
[    0.585525] irq num: 115 !
[    0.588601] battery_data_hw_init:battery_data_hw_init ++++++
[    0.594942] lradc_battery_probe:lradc_battery_probe ------
[    0.603472] spi spi0: master is unqueued, this is deprecated
[    0.611144] m25p80 spi0.0: found w25q128, expected m25p64
[    0.617180] m25p80 spi0.0: w25q128 (16384 Kbytes) - fast mode
[    0.628085] 9 sunxipart partitions found on MTD device (null)
[    0.634571] Creating 9 MTD partitions on "(null)":
[    0.639944] 0x000000000000-0x000000080000 : "uboot"
[    0.647234] 0x000000080000-0x000000100000 : "bootlogo"
[    0.654859] 0x000000100000-0x000000120000 : "env"
[    0.661968] 0x000000120000-0x000000420000 : "boot"
[    0.669147] 0x000000420000-0x000000a20000 : "rootfs"
[    0.676489] 0x000000a20000-0x000000f20000 : "rootfs_data"
[    0.684465] 0x000000f20000-0x000000f30000 : "misc"
[    0.691767] 0x000000f30000-0x000000f40000 : "private"
[    0.699378] 0x000000f40000-0x000001000000 : "UDISK"
[    0.706981] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.715691] /soc/usbc0@0: could not find phandle
[    0.720968] get regulator_io is no nocare
[    0.725659] sunxi_hcd_host0 1c13000.otghci0-controller: sunxi_hcd host driver
[    0.733699] sunxi_hcd_host0 1c13000.otghci0-controller: new USB bus registered, assigned bus number 1
[    0.745555] hub 1-0:1.0: USB hub found
[    0.749920] hub 1-0:1.0: 1 port detected
[    0.754826] wrn: hcd is not enable, need not stop hcd
[    0.761282] sunxi_keyboard_startup: keyboard has no clk.
[    0.767832] input: sunxi-keyboard as /devices/virtual/input/input0
[    0.775814] [VFE]cci_init end
[    0.779233] [VFE]Welcome to Video Front End driver
[    0.784864] [VFE]csi0 probe end!
[    0.788695] [VFE]csi_init end
[    0.792219] [VFE]sunxi_isp_platform_register end
[    0.797549] [VFE]mipi_init end
[    0.801019] [VFE]flash_init end
[    0.806299] [VFE]pdev->id = 0
[    0.809697] [VFE]dev->cci_sel = 0
[    0.813375] [VFE]dev->csi_sel = 0
[    0.817047] [VFE]dev->mipi_sel = 0
[    0.820855] [VFE]dev->isp_sel = 0
[    0.824699] [VFE_WARN]fetch csi0_dev0_power_en from device_tree failed
[    0.832110] /soc/vfe@0/dev@1: could not find phandle
[    0.837618] [VFE_WARN]fetch csi0_dev0_reset from device_tree failed
[    0.844632] [VFE_WARN]fetch csi0_dev0_pwdn from device_tree failed
[    0.851557] [VFE_WARN]fetch csi0_dev0_flash_used from device_tree failed
[    0.859040] [VFE_WARN]fetch csi0_dev0_flash_type from device_tree failed
[    0.866485] [VFE_WARN]fetch csi0_dev0_flash_en from device_tree failed
[    0.873766] [VFE_WARN]fetch csi0_dev0_flash_mode from device_tree failed
[    0.881238] [VFE_WARN]fetch csi0_dev0_flvdd from device_tree failed
[    0.888197] [VFE_WARN]fetch csi0_dev0_flvdd_vol from device_tree failed
[    0.895571] [VFE_WARN]fetch csi0_dev0_af_pwdn from device_tree failed
[    0.903135] vfe_resource_request: csi irq(113) enable
[    0.909063] [VFE]vfe_init end
[    0.912364] Welcome to tv decoder driver
[    0.916974] __tvd_probe_init: 
[    0.920487] pdev->id = 0
[    0.923303] __jude_config: sel = 0.
[    0.927437] __tvd_probe_init: v4l2 subdev register.
[    0.933393] V4L2 tvd device registered as video4
[    0.938876] tvd_init end
[    0.941696] sunxi cedar version 0.1 
[    0.945820] VE: install start!!!
[    0.945820] 
[    0.951304] cedar_ve: cedar-ve the get irq is 103
[    0.957066] [VFE]probe_work_handle start!
[    0.962161] VE: install end!!!
[    0.962161] 
[    0.969205] sunxi-mmc sdc0: SD/MMC/SDIO Host Controller Driver(v0.91 2018-5-29 14:19) Compiled in Jun 22 2023 at 03:13:33
[    0.981492] [VFE]..........................vfe clk open!.......................
[    0.989666] [VFE]v4l2 subdev register input_num = 0
[    0.995078] [VFE]vfe sensor detect start! input_num = 0
[    1.000940] [VFE]Find sensor name is "gc0308", i2c address is 42, type is "YUV" !
[    1.009280] [VFE]Sub device register "gc0308" i2c_addr = 0x42 start!
[    1.016566] sunxi-mmc sdc0: Can't get vmmc regulator string
[    1.022845] sunxi-mmc sdc0: Can't get vqmmc regulator string
[    1.029181] sunxi-mmc sdc0: Can't get vdmmc regulator string
[    1.035466] sunxi-mmc sdc0: Failed getting OCR mask: 0
[    1.043068] sunxi-mmc sdc0: ***set host ocr***
[    1.048318] sunxi-mmc sdc0: sdc set ios: clk 0Hz bm PP pm UP vdd 21 width 1 timing LEGACY(SDR12) dt B
[    1.059628] [VFE_ERR]Error registering v4l2 subdevice No such device!
[    1.066791] [VFE_ERR]vfe sensor register check error at input_num = 0
[    1.074049] [VFE]V4L2 device registered as (null)
[    1.079413] sunxi-mmc sdc0: sdc set ios: clk 400000Hz bm PP pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[    1.090277] [VFE]..........................vfe clk close!.......................
[    1.105019] [VFE]probe_work_handle end!
[    1.118582] sunxi-mmc sdc0: base:0xf1c0f000 irq:107
[    1.126316] sunxi-mmc sdc0: smc 0 p0 err, cmd 52, RTO !!
[    1.133256] sunxi-mmc sdc0: smc 0 p0 err, cmd 52, RTO !!
[    1.139373] sunxi-mmc sdc0: sdc set ios: clk 400000Hz bm PP pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[    1.151331] failed to get gpio-spk and gpio_num
[    1.158323] sunxi-internal-codec codec: ASoC: DAPM unknown pin HPOUTR
[    1.165615] sunxi-internal-codec codec: ASoC: DAPM unknown pin HPOUTL
[    1.172825] sunxi-internal-codec codec: ASoC: DAPM unknown pin SPKL
[    1.179824] sunxi-internal-codec codec: ASoC: DAPM unknown pin SPKR
[    1.186787] sunxi-codec-machine sndcodec: ASoC: DAPM unknown pin External Speaker
[    1.196484] sunxi-internal-cpudai cpudai: ASoC: pcm constructor failed: -12
[    1.204352] sunxi-codec-machine sndcodec: ASoC: can't create pcm SUNXI-CODEC :-12
[    1.212720] sunxi-codec-machine sndcodec: ASoC: failed to instantiate card -12
[    1.221821] sunxi-mmc sdc0: sdc set ios: clk 400000Hz bm PP pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[    1.232845] snd_soc_register_card failed -12
[    1.237620] sunxi-codec-machine: probe of sndcodec failed with error -12
[    1.245757] TCP: cubic registered
[    1.249550] NET: Registered protocol family 17
[    1.255039] VFP support v0.3: not present
[    1.261611] sunxi-mmc sdc0: smc 0 p0 err, cmd 8, RTO !!
[    1.267781] [LCD]lcd_module_init
[    1.271514] sunxi-mmc sdc0: smc 0 p0 err, cmd 5, RTO !!
[    1.278226] sunxi-mmc sdc0: smc 0 p0 err, cmd 5, RTO !!
[    1.285033] sunxi-mmc sdc0: smc 0 p0 err, cmd 5, RTO !!
[    1.292408] sunxi-mmc sdc0: smc 0 p0 err, cmd 5, RTO !!
[    1.299166] sunxi-mmc sdc0: smc 0 p0 err, cmd 55, RTO !!
[    1.305503] enhance_en=1
[    1.308362] sunxi-mmc sdc0: smc 0 p0 err, cmd 55, RTO !!
[    1.314395] matrixresult:(0x0, 0x3c4, 0x0, 0x0)
[    1.319628] pll_freq=297000000HZ, lcd_dclk_freq=33000000HZ, clk_div=9
[    1.326810] clk_div=9
[    1.330658] sunxi-mmc sdc0: smc 0 p0 err, cmd 55, RTO !!
[    1.336999] [LCD]open, step 0 finish
[    1.341947] sunxi-mmc sdc0: smc 0 p0 err, cmd 55, RTO !!
[    1.347939] sunxi-mmc sdc0: sdc set ios: clk 400000Hz bm OD pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[    1.359682] sunxi-mmc sdc0: smc 0 p0 err, cmd 1, RTO !!
[    1.365577] sunxi-mmc sdc0: sdc set ios: clk 0Hz bm OD pm OFF vdd 0 width 1 timing LEGACY(SDR12) dt B
[    1.378482] [LCD]open, step 1 finish
[    1.438490] [LCD]open, step 2 finish
[    1.548992] [LCD]open, step 3 finish
[    1.559009] [LCD]lcd_module_init finish
[    1.563813] usb_serial_number:20080411
[    1.568704] file system registered
[    1.575163] android_usb gadget: Mass Storage Function, version: 2009/09/11
[    1.582939] android_usb gadget: Number of LUNs=3
[    1.588078]  lun0: LUN: removable file: (no medium)
[    1.593588]  lun1: LUN: removable file: (no medium)
[    1.599049]  lun2: LUN: removable file: (no medium)
[    1.605369] android_usb gadget: android_usb ready
[    1.610835] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[    1.617981] ALSA device list:
[    1.621375]   No soundcards found.
[    1.645411] VFS: Mounted root (squashfs filesystem) readonly on device 31:4.
[    1.662944] devtmpfs: mounted
[    1.667317] Freeing unused kernel memory: 124K (c0468000 - c0487000)
mount: mounting none on /dev failed: Resource busy
mount: mounting pstore on /sys/fs/pstore failed: No such file or directory
-- run rc.preboot --
-- set volume --
Failed to open mixer
-- play music --
-- end --
failed to open for pcm 0,0

sys_config.fex的配置

;-------------------------------------------------------------------------------
;		NOTE :Make sure daudio0mach_used = 0x1,daudio0_used = 0x1,
;         if register the sound card DAUDIO0.
;--------------------------------------------------------------------------------
;[daudio0_machine]
;daudio0_machine_used = 0
;-----------------------------------------------------------------------------
[daudio0]
pcm_lrck_period =   0x20
pcm_lrckr_period =   0x01
slot_width_select =   0x10
pcm_lsb_first =   0x0
tx_data_mode =   0x0
rx_data_mode =   0x0
daudio_master =   0x04
audio_format =   0x04
signal_inversion =   0x01
frametype =   0x0
tdm_config =   0x00
daudio0_used = 0

;--------------------------------------------------------------------------------------
;allwinner,headphonevol :headphone volume:0x0--0x3f 0db--(-62db) 1db/step
;allwinner,spkervol : speaker volume:0x0--0x1f 0db-(-43.5db) 1.5db/step
;allwinner,earpiecevol : earpiece volume:0x0--0x1f 0db-(-43.5db) 1.5db/step
;allwinner,maingain :	mainmic gain:0x0---0x7 0x0-0db 0x1:24db   3db/step
;allwinner,headsetmicgain : headphonemic gain:0x0---0x7 0x0-0db 0x1:24db   3db/step
;allwinner,adcagc_cfg : 1:use adcagc 0:no use
;allwinner,adcdrc_cfg : 1:use adcdrc 0:no use
;allwinner,adchpf_cfg : 1:use adchpf 0:no use
;allwinner,dacdrc_cfg : 1:use adcdrc 0:no use
;allwinner,dachpf_cfg : 1:use adchpf 0:no use
;allwinner,aif2config : 1:use aif2 0:no use
;allwinner,aif3config :	1:use aif3 0:no use
;--------------------------------------------------------------------------------
;		NOTE :Make sure audiocodec_machine_used = 0x1,sun50i2s_used = 0x1
;         sun50codec_used = 0x1,if register the sound card audiocodec.
;---------------------------------------------------------------------------------
[audiocodec_machine]
audiocodec_machine_used = 1
dachpf_cfg = 1

内核配置