麻雀 d1s spi tft 开坑

soso90 LV 7

手上有个st7789的屏，开坑，驱动这个屏，目前spi0引出到spi flash，空间比较小。不好飞线。考虑使用gpio模拟或是spi1.有使用经验的朋友可以交流一下

yelong98 LV 7

@soso90 模拟的就算了，跟幻灯片一样，还拉窗帘

YterAA LV 7

可以用spi1挂fbtft上

soso90 LV 7

@yelong98 能达到多大帧率，应该不至于很卡吧~~

YterAA LV 7

@soso90 模拟io是一行一行刷，我觉得挺卡的，不过这东西也不支持dma

soso90 LV 7

@yteraa
按照spi0的方法，配置了spi1，查看到有这么个错误。

root@TinaLinux:/# dmesg |grep spi
[    2.582189] sunxi_spi_probe()2476 - [spi1] Req mem region failed

以下是dts配置：

	spi1_pins_a: spi1@0 {
		pins = "PD11", "PD12"; /* clk, mosi */
		function = "spi1";
		drive-strength = <10>;
	};

	spi1_pins_b: spi1@1 {
		pins = "PD10" ;
		function = "spi1";
		drive-strength = <10>;
		bias-pull-up;   /* cs */
	};


&spi1 {
	clock-frequency = <100000000>;
	pinctrl-0 = <&spi1_pins_a &spi1_pins_b>;
	//pinctrl-1 = <&spi1_pins_c>;
	//pinctrl-names = "default";
	//spi_slave_mode = <0>;
	//spi1_cs_number = <1>;
	//spi1_cs_bitmap = <1>;
	//spi_dbi_enable = <1>;
	status = "okay";
    st7789v@0 {
        status = "okay";
        compatible = "sitronix,st7789v";
        reg = <0>;
        spi-max-frequency = <32000000>;
        rotate = <90>;
        rgb;
        fps = <30>;
        buswidth = <8>;
        reset = <&pio PD 13 GPIO_ACTIVE_LOW>;
        dc = <&pio PD 14 GPIO_ACTIVE_LOW>;
        led = <&pio PD 15 GPIO_ACTIVE_HIGH>;
        debug = <1>;
    };

};

&disp {
	disp_init_enable = <0>;
    ......
}

&lcd0 {
	lcd_used = <0>;
    ......
}

&hdmi {
	hdmi_used = <0>;
    ......
}

以上。参考大神帖子：https://blog.csdn.net/weixin_43094346/article/details/123088068 board.dts

YterAA LV 7

@soso90

修改 \lichee\linux-5.4\arch\riscv\boot\dts\sunxi\sun20iw1p1.dtsi spi1部分，reg = <0x0 0x04026000 0x0 0x1000>; 改成 reg = <0x0 0x04026000 0x0 0x300>;

spi1: spi@4026000 {
	#address-cells = <1>;
	#size-cells = <0>;
	compatible = "allwinner,sun20i-spi";
	reg = <0x0 0x04026000 0x0 0x300>;
	interrupts-extended = <&plic0 32 IRQ_TYPE_LEVEL_HIGH>;
	clocks = <&ccu CLK_PLL_PERIPH0>, <&ccu CLK_SPI1>, <&ccu CLK_BUS_SPI1>;
	clock-names = "pll", "mod", "bus";
	resets = <&ccu RST_BUS_SPI1>;
	clock-frequency = <100000000>;
	spi1_cs_number = <1>;
	spi1_cs_bitmap = <1>;
	dmas = <&dma 23>, <&dma 23>;
	dma-names = "tx", "rx";
	status = "disabled";
};

参考user manel

soso90 LV 7

@yteraa 按照你说的，改了spi的范围，重新make和pack，还是报这个错误。是哪里还要配置？谢谢哈~ 看来这个东西，应该玩的人也少

YterAA LV 7

@soso90 fb_tft有没有什么输出信息

soso90 LV 7

@yteraa fbtft没有输出，spi这边还是报那个申请失败：sunxi_spi_probe()2476 - [spi1] Req mem region failed。这个spi失败的话，后面应该也不会去挂载fbtft吧

soso90 LV 7

@yteraa 今天发现串口有更详细的spi日志，dmesg居然没打印出来

[    0.172839] spi spi1: spi1 supply spi not found, using dummy regulator
[    0.173158] sunxi_spi_resource_get()2062 - [spi1] SPI MASTER MODE
[    0.173322] sunxi_spi_select_gpio_state()2005 - [spi1] pinctrl_lookup_state(default) failed! return ffffffffffffffed
[    0.173335] sunxi_spi_resource_get()2065 - [spi1] Request GPIO failed!
[    0.173342] sunxi_spi_probe()2494 - [spi1] resource get error
[    0.173623] spi: probe of spi1 failed with error -22

[    2.536895] [DISP] bsp_disp_sync_with_hw,line:657:
[    2.536900] Can't find device(1) for manager 0
[    2.571469] sunxi_spi_probe()2476 - [spi1] Req mem region failed
[    2.578284] ------------[ cut here ]------------
[    2.583436] Trying to free already-free IRQ 32
[    2.588410] WARNING: CPU: 0 PID: 13 at kernel/irq/manage.c:1737 __free_irq+0x7a/0x25a
[    2.597137] Modules linked in:
[    2.600544] CPU: 0 PID: 13 Comm: kworker/0:1 Not tainted 5.4.61 #10
[    2.607539] Workqueue: events deferred_probe_work_func
[    2.613268] sepc: ffffffe000061598 ra : ffffffe000061598 sp : ffffffe002f23b80
[    2.621318]  gp : ffffffe0008eb600 tp : ffffffe002f08ac0 t0 : ffffffe0008fa368
[    2.629366]  t1 : 0000000000000064 t2 : 0000000000000009 s0 : ffffffe002f23bc0
[    2.637415]  s1 : ffffffe001844638 a0 : 0000000000000022 a1 : 000000000000000a
[    2.645463]  a2 : 0000000000000087 a3 : ffffffe000858ea0 a4 : ffffffe000858e08
[    2.653511]  a5 : 0000000000000001 a6 : 0000000000000133 a7 : 0000000000000000
[    2.661559]  s2 : ffffffe002f3ec00 s3 : ffffffe001844638 s4 : 0000000200000022
[    2.669607]  s5 : ffffffe002f3ed50 s6 : 0000000000000020 s7 : 0000000000000000
[    2.677654]  s8 : 0000000000000001 s9 : ffffffffffffffff s10: 0000000000000001
[    2.685703]  s11: ffffffe002efda80 t3 : ffffffe0008f4b00 t4 : 0000000000001570
[    2.693750]  t5 : 0000000000001570 t6 : ffffffe0008f5089
[    2.699667] sstatus: 0000000200000100 sbadaddr: 0000000000000000 scause: 0000000000000003
[    2.708780] ---[ end trace 0d66c23407f86d75 ]---

soso90 LV 7

修改了报错。现在能挂载上驱动。不过启动后，居然挂载不了根目录

[    3.085565] HDMI2.0 module init end
[    3.089553] [DISP] bsp_disp_sync_with_hw,line:657:
[    3.089560] Can't find device(1) for manager 0
[    3.123954] twi twi2: twi2 supply twi not found, using dummy regulator
[    3.138531] sunxi_i2c_probe()2262 - [i2c2] probe success
[    3.148565] debugfs: Directory '2034000.daudio' with parent 'sndhdmi' already present!
[    3.159575] sunxi-audio-card 20340a0.sounddaudio2: 20340a4.hdmiaudio <-> 2034000.daudio mapping ok
[    3.171753] get det_vbus is fail, -84
[    3.175843] get id is fail, -84
[    3.180837] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    3.192169] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    3.199858] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[    3.209561] clk: Not disabling unused clocks
[    3.214334] ALSA device list:
[    3.217807] cfg80211: failed to load regulatory.db
[    3.223249]   #0: audiocodec
[    3.226549]   #1: sndhdmi
[    3.229990] VFS: Cannot open root device "mmcblk0p5" or unknown-block(0,0): error -6
[    3.238747] Please append a correct "root=" boot option; here are the available partitions:
[    3.248148] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    3.257372] CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.61 #10
[    3.263870] Call Trace:
[    3.266613] [<ffffffe0000333ce>] walk_stackframe+0x0/0xa0
[    3.272632] [<ffffffe0000335b0>] show_stack+0x2a/0x34
[    3.278264] [<ffffffe000618532>] dump_stack+0x20/0x28
[    3.283897] [<ffffffe000038376>] panic+0xee/0x2b6
[    3.289142] [<ffffffe000000eda>] mount_block_root+0x1ee/0x28a
[    3.295546] [<ffffffe000000ffc>] mount_root+0x86/0x90
[    3.301178] [<ffffffe000001116>] prepare_namespace+0x110/0x152
[    3.307680] [<ffffffe000000b78>] kernel_init_freeable+0x17e/0x19a
[    3.314478] [<ffffffe00062be42>] kernel_init+0x12/0xee
[    3.320206] [<ffffffe000032018>] ret_from_exception+0x0/0xc
[    3.326421] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]---

YterAA LV 7

@soso90
sunxi_spi_resource_get()2065 - [spi1] Request GPIO failed!

SPI的IO被其他功能占用了，看看是不是被LCD显示屏lcd0节点占用了。如果是，释放IO即可

YterAA LV 7

@soso90 顺便把那个0x300改回去（（

soso90 LV 7

@yteraa 现在能识别，也正常挂载7789，就是系统根目录挂不了。真是奇怪~~没有改其他地方，就加了一个pin-name加了default这个，之前dts少了这个，才报申请io失败

YterAA LV 7

@soso90 是spi flash启动还是tf启动

soso90 LV 7

@yteraa tf卡启动，没有修改到tf卡相关。只是添加了spi和改了你说的寄存器范围。刚才spi的dts错误的话，还能识别到。看日志好像现在是识别不到tf卡。

soso90 LV 7

@soso90 在麻雀 d1s spi tft 开坑中说：

@yteraa tf卡启动，没有修改到tf卡相关。只是添加了spi和改了你说的寄存器范围。刚才spi的dts错误的话，还能识别到。看日志好像现在是识别不到tf卡。

初步判断，有可能是io口引用冲突导致。这边有个疑问，d1s少了部分io。那么io计算方法是否还是和d1一致，也是按照每个pin有多少个做偏移，还是按照固定的io数去计算

YterAA LV 7

@soso90 计算都是一样的，检查下是不是tf部分的mmc有问题

soso90 LV 7

@yteraa 可以显示了。不过偏移有问题，还有错位了，迟些上图片，

柚木鉉 LV 9

@soso90 错位改成卖家给的资料包里的偏移，这个屏幕我买过几家不同的，初始化偏移都不太一样

soso90 LV 7

@yuzukitsuru
微信图片编辑_20220704095655.jpg

1.应该是你说的偏移问题。 2这种图片显示异常，是原点坐标不对导致？

柚木鉉 LV 9

@soso90
你用的是135240的驱动，要改成240240的驱动

1）修改这里的偏移

static void fbtft_set_addr_win(struct fbtft_par *par, int xs, int ys, int xe,
			       int ye)
{
	switch(par->info->var.rotate)
	{
		case   0: xs+=53;xe+=53;ys+=40;ye+=40;
				 break;
		case  90: xs+=40;xe+=40;ys+=53;ye+=53;
				 break;
		case 180: xs+=53;xe+=53;ys+=40;ye+=40;
				 break;
		case 270: xs+=40;xe+=40;ys+=53;ye+=53;
				 break;
		default :
				 break;
	}

	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
		  (xs >> 8) & 0xFF, xs & 0xFF, (xe >> 8) & 0xFF, xe & 0xFF);

	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
		  (ys >> 8) & 0xFF, ys & 0xFF, (ye >> 8) & 0xFF, ye & 0xFF);

	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
}

2）修改这里的初始化代码，我这里的是135*240的

static int init_display(struct fbtft_par *par)
{
    par->fbtftops.reset(par);
    mdelay(50);
    write_reg(par,0x36,0x00);
    write_reg(par,0x3A,0x05);
    write_reg(par,0xB2,0x0C,0x0C,0x00,0x33,0x33);
    write_reg(par,0xB7,0x35);
    write_reg(par,0xBB,0x19);
    write_reg(par,0xC0,0x2C);
    write_reg(par,0xC2,0x01);
    write_reg(par,0xC3,0x12);
    write_reg(par,0xC4,0x20);
    write_reg(par,0xC6,0x0F);
    write_reg(par,0xD0,0xA4,0xA1);
    write_reg(par,0xE0,0xD0,0x04,0x0D,0x11,0x13,0x2B,0x3F,0x54,0x4C,0x18,0x0D,0x0B,0x1F,0x23);
    write_reg(par,0xE1,0xD0,0x04,0x0C,0x11,0x13,0x2C,0x3F,0x44,0x51,0x2F,0x1F,0x1F,0x20,0x23);
    write_reg(par,0x21);
    write_reg(par,0x11);
    mdelay(50);
    write_reg(par,0x29);
    mdelay(200);
    return 0;
}

3）修改这里屏幕分辨率

static struct fbtft_display display = {
	.regwidth = 8,
	.width = 135,
	.height = 240,
	.gamma_num = 2,
	.gamma_len = 14,
	.gamma = DEFAULT_GAMMA,
	.fbtftops = {
		.init_display = init_display,
		.set_var = set_var,
		.set_gamma = set_gamma,
		.blank = blank,
	},
};

以上资料屏幕厂商会提供

soso90 LV 7

@yuzukitsuru 分辨率已经修改。我的是240*280~~ ，偏移还没改，我晚点试试~~

soso90 LV 7

结贴，后续见：https://bbs.aw-ol.com/topic/1658/v853开发板填坑记/3

ggy321 LV 3

@soso90 大佬这个报错怎么解决的？我一路跟您走来报了一模一样的错误

soso90 LV 7

@ggy321 哪个错误。dts错误？dts要在spi1上添加上pinctrl-names = "default";

ggy321 LV 3

@soso90 感谢大佬，我是挂载不了根目录，查了一下是sd的引脚冲突了

soso90 LV 7

@ggy321 你用的是哪个sdk。我用的是网盘那个，居然无线不行。。。你的无线正常不。我连设备都没识别到

ggy321 LV 3

@soso90 https://bbs.aw-ol.com/topic/1256/芒果派-mq-pro-mq-的板级配置文件
可以看一下这个，我还没到这一步

soso90 LV 7

https://www.bilibili.com/video/BV1bB4y1z7FY?spm_id_from=444.41.list.card_archive.click&vd_source=5bd1cb1eb42515f034a1fbba36e708e0

这个屏esp32+lvgl效果。暂时不研究跑在d1s+lvgl效果。这个坑，给其他人填了~