页次： 1
F100S 性能也就这样了
LZ可以看看有没有用DMA拷数据,软件拷数据,画面大了肯定耗时
我看STM32的没有开DMA2D这个硬件拷数据速度下降也很厉害
用awtk的memcpy测试，速度是89M/S。
一帧的数据 800 * 480 * 4 = 1.46M
如果每秒要求80帧：1.46 * 80 = 116.8M/S
这样看上去是不够的，这还仅仅是memcpy，如果加上其他计算肯定是不够了。
但是我看awtk显示出来的是75fps，那么数据量：75 * 1.46 = 109.5M/s 是超过这个memcpy的。
看看memcpy测试代码
start = time_now_ms();
for (i = 0; i < nr; i++) {
uint32_t half = length >> 1;
memcpy(buffer, (char*)buffer + half, half);
memcpy((char*)buffer + half, buffer, half);
}
cost = time_now_ms() - start;
total_cost += cost;
这里好像复制了两次，那一次的话应该就是180M左右了。
然后我想试试dma会不会快点，然而测试结果居然是55M/S，应该是驱动有问题。
awtk能不能在LINUX或者官方的MELIS下先移植测试?
裸机好像CACHE什么的需要注意,默认是没开影响很大
家里没环境，linux已经弄好了，过几天就把awtk弄到linux上看看。
我记得awtk官方文档里面不建议缩放、旋转，我尽量避免这些。谁知道我在awtk的IDE里面，有张图片设置了缩放比例....然后导致一个界面只有十几帧。
而后去掉缩放，直接把图片编辑到合适大小放上去，立马60阵。
另外一些渐变、动画，的不流畅，应该就是芯片性能问题，我开启窗口水平切换动画，每帧就是28 - 30ms了，远没有480 272的流畅
[DEBUG]:#####################################
[DEBUG]:awtk\src\base\lcd_profile.c:326
[DEBUG]:-------------------------------------
[DEBUG]: total_cost=28
[DEBUG]: draw_image_cost=19 times=2
[DEBUG]: draw_text_cost=0 times=0
[DEBUG]: fill_cost=0 times=0
[DEBUG]: stroke_cost=0 times=0
[DEBUG]: end_frame_cost=9
贴上调试代码，不知有哪位大神有过优化经验。
那来个逆向思维吧， 把你的zImage和dtb替换下面的固件的:
是内核的问题，应该是改的时间长，改乱了。
我重新下了一个，按照大家的帖子，挨个弄，弄好了。
多谢晕哥的指导
可能是这个问题: https://whycan.cn/t_1712.html#p18831
我看到过那个SPI驱动应该选A31，官方的是A10，这是个坑，但是我选过很多次，刚进去怎么被取消了。估计是动其他配置的时候，这个选项的依赖呗修改了。
现在生成mtd了，好像存在问题。
U-Boot 2018.01-05682-gd83b2fefcf-dirty (Jan 14 2020 - 13:37:19 +0800) Allwinner Technology
CPU: Allwinner F Series (SUNIV)
Model: Lichee Pi Nano
DRAM: 32 MiB
MMC: SUNXI SD/MMC: 0
SF: Detected w25q128bv with page size 256 Bytes, erase size 4 KiB, total 16 MiB
*** Warning - bad CRC, using default environment
Setting up a 800x480 lcd console (overscan 0x0)
In: serial@1c25000
Out: serial@1c25000
Err: serial@1c25000
Net: No ethernet found.
starting USB...
No controllers found
Hit any key to stop autoboot: 0
SF: Detected w25q128bv with page size 256 Bytes, erase size 4 KiB, total 16 MiB
device 0 offset 0x100000, size 0x4000
SF: 16384 bytes @ 0x100000 Read: OK
device 0 offset 0x110000, size 0x400000
SF: 4194304 bytes @ 0x110000 Read: OK
## Flattened Device Tree blob at 80c00000
Booting using the fdt blob at 0x80c00000
Loading Device Tree to 80e05000, end 80e09f3e ... OK
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.15.0-rc8-90681-g9b2fb662b0c8-dirty (xw@xw-C246-WU4) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #13 Tue Jan 14 14:33:48 CST 2020
[ 0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
[ 0.000000] CPU: VIVT data cache, VIVT instruction cache
[ 0.000000] OF: fdt: Machine model: Lichee Pi Nano
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] random: fast init done
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 8128
[ 0.000000] Kernel command line: console=ttyS0,115200 panic=5 rootwait root=/dev/mtdblock3 rw rootfstype=jffs2
[ 0.000000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Memory: 25940K/32768K available (4096K kernel code, 154K rwdata, 976K rodata, 1024K init, 137K bss, 6828K reserved, 0K cma-reserved)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0xc2800000 - 0xff800000 ( 976 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xc2000000 ( 32 MB)
[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0x(ptrval) - 0x(ptrval) (5088 kB)
[ 0.000000] .init : 0x(ptrval) - 0x(ptrval) (1024 kB)
[ 0.000000] .data : 0x(ptrval) - 0x(ptrval) ( 155 kB)
[ 0.000000] .bss : 0x(ptrval) - 0x(ptrval) ( 138 kB)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000052] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000128] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.000784] Console: colour dummy device 80x30
[ 0.000891] Calibrating delay loop... 203.16 BogoMIPS (lpj=1015808)
[ 0.070270] pid_max: default: 32768 minimum: 301
[ 0.070677] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.070722] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.072204] CPU: Testing write buffer coherency: ok
[ 0.074170] Setting up static identity map for 0x80100000 - 0x80100058
[ 0.076902] devtmpfs: initialized
[ 0.083322] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.083393] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.083678] pinctrl core: initialized pinctrl subsystem
[ 0.086235] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.111023] SCSI subsystem initialized
[ 0.112211] usbcore: registered new interface driver usbfs
[ 0.112401] usbcore: registered new interface driver hub
[ 0.112602] usbcore: registered new device driver usb
[ 0.113184] pps_core: LinuxPPS API ver. 1 registered
[ 0.113217] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.114494] clocksource: Switched to clocksource timer
[ 0.147336] workingset: timestamp_bits=30 max_order=13 bucket_order=0
[ 0.159712] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.160293] jffs2: version 2.2. © 2001-2006 Red Hat, Inc.
[ 0.166656] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[ 0.166709] io scheduler noop registered
[ 0.166733] io scheduler deadline registered
[ 0.167196] io scheduler cfq registered (default)
[ 0.167234] io scheduler mq-deadline registered
[ 0.167256] io scheduler kyber registered
[ 0.178365] suniv-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[ 0.373182] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[ 0.380918] console [ttyS0] disabled
[ 0.401202] 1c25000.serial: ttyS0 at MMIO 0x1c25000 (irq = 23, base_baud = 6250000) is a 16550A
[ 0.755416] console [ttyS0] enabled
[ 0.797429] brd: module loaded
[ 0.823761] loop: module loaded
[ 0.830927] m25p80 spi0.0: w25q128 (16384 Kbytes)
[ 0.837038] 4 ofpart partitions found on MTD device spi0.0
[ 0.842546] Creating 4 MTD partitions on "spi0.0":
[ 0.847516] 0x000000000000-0x000000100000 : "u-boot"
[ 0.856711] rfd_ftl: no RFD magic found in 'u-boot'
[ 0.864109] ftl_cs: FTL header not found.
[ 0.869945] 0x000000100000-0x000000110000 : "dtb"
[ 0.876237] ftl_cs: FTL header not found.
[ 0.882036] 0x000000110000-0x000000510000 : "kernel"
[ 0.899612] rfd_ftl: no RFD magic found in 'kernel'
[ 0.907040] ftl_cs: FTL header not found.
[ 0.912858] 0x000000510000-0x000001000000 : "rootfs"
[ 0.949353] rfd_ftl: no RFD magic found in 'rootfs'
[ 0.956873] ftl_cs: FTL header not found.
[ 0.963098] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.969775] ehci-platform: EHCI generic platform driver
[ 0.975403] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 0.981642] ohci-platform: OHCI generic platform driver
[ 0.987612] i2c /dev entries driver
[ 0.993396] usbcore: registered new interface driver usbhid
[ 0.999119] usbhid: USB HID core driver
[ 1.013923] hctosys: unable to open rtc device (rtc0)
[ 1.019725] vcc3v3: disabling
[ 1.108587] random: crng init done
[ 1.418802] VFS: Mounted root (jffs2 filesystem) on device 31:3.
[ 1.426794] devtmpfs: mounted
[ 1.434205] Freeing unused kernel memory: 1024K
[ 3.181227] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004
[ 3.181227]
[ 3.190383] CPU: 0 PID: 1 Comm: init Not tainted 4.15.0-rc8-90681-g9b2fb662b0c8-dirty #13
[ 3.198539] Hardware name: Allwinner suniv Family
[ 3.203233] Backtrace:
[ 3.205745] [<c0105938>] (dump_backtrace) from [<c0105bf8>] (show_stack+0x18/0x1c)
[ 3.213306] r6:c182de70 r5:00000000 r4:c0726ce8
[ 3.217962] [<c0105be0>] (show_stack) from [<c044bfec>] (dump_stack+0x20/0x28)
[ 3.225208] [<c044bfcc>] (dump_stack) from [<c010f6d8>] (panic+0xc0/0x238)
[ 3.232091] [<c010f61c>] (panic) from [<c0110f80>] (do_exit+0x970/0x9a8)
[ 3.238789] r3:c182e000 r2:c182e00c r1:00000004 r0:c058acf4
[ 3.244434] r7:00000000
[ 3.246992] [<c0110610>] (do_exit) from [<c0111b40>] (do_group_exit+0x44/0xbc)
[ 3.254194] r7:c1830000
[ 3.256764] [<c0111afc>] (do_group_exit) from [<c011ae40>] (get_signal+0x150/0x56c)
[ 3.264400] r4:ffffe000
[ 3.266962] [<c011acf0>] (get_signal) from [<c0104e5c>] (do_signal+0xcc/0x40c)
[ 3.274185] r10:00000000 r9:c182c000 r8:b6f10104 r7:b6f10100 r6:ffffff9c r5:c182ded0
[ 3.281991] r4:c182dfb0
[ 3.284546] [<c0104d90>] (do_signal) from [<c010537c>] (do_work_pending+0xc0/0xd4)
[ 3.292115] r10:00000000 r9:c182c000 r8:c01027c4 r7:00900000 r6:c182dfb0 r5:c01027c4
[ 3.299923] r4:ffffe000
[ 3.302475] [<c01052bc>] (do_work_pending) from [<c0102608>] (slow_work_pending+0xc/0x20)
[ 3.310636] r6:00000000 r5:bef85d60 r4:b6f22f70
[ 3.315259] Rebooting in 5 seconds..
[ 9.294495] Reboot failed -- System halted发现这里sip0是disabled的，我改一下试试
spi0: spi@1c05000 {
compatible = "allwinner,suniv-spi",
"allwinner,sun8i-h3-spi";
reg = <0x01c05000 0x1000>;
interrupts = <10>;
clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_BUS_SPI0>;
clock-names = "ahb", "mod";
resets = <&ccu RST_BUS_SPI0>;
status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
};是的，我也在怀疑这个。
suniv-f1c100s.dtsi文件是空的，只有一个include
// SPDX-License-Identifier: (GPL-2.0+ OR X11)
/*
* Copyright 2018 Icenowy Zheng <icenowy@aosc.io>
*/
#include "suniv.dtsi"我顺便贴一下suniv.dtsi
// SPDX-License-Identifier: (GPL-2.0+ OR X11)
/*
* Copyright 2018 Icenowy Zheng <icenowy@aosc.io>
*/
#include <dt-bindings/clock/suniv-ccu.h>
#include <dt-bindings/reset/suniv-ccu.h>
/ {
#address-cells = <1>;
#size-cells = <1>;
interrupt-parent = <&intc>;
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
osc24M: clk-24M {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <24000000>;
clock-output-names = "osc24M";
};
osc32k: clk-32k {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <32768>;
clock-output-names = "osc32k";
};
fake100M: clk-100M {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <100000000>;
clock-output-names = "fake-100M";
};
};
cpus {
#address-cells = <0>;
#size-cells = <0>;
cpu {
compatible = "arm,arm926ej-s";
device_type = "cpu";
};
};
de: display-engine {
compatible = "allwinner,suniv-display-engine";
allwinner,pipelines = <&fe0>;
status = "disabled";
};
soc {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges;
sram-controller@1c00000 {
compatible = "allwinner,sun4i-a10-sram-controller";
reg = <0x01c00000 0x30>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
sram_d: sram@10000 {
compatible = "mmio-sram";
reg = <0x00010000 0x1000>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0x00010000 0x1000>;
otg_sram: sram-section@0 {
compatible = "allwinner,sun4i-a10-sram-d";
reg = <0x0000 0x1000>;
status = "disabled";
};
};
};
spi0: spi@1c05000 {
compatible = "allwinner,suniv-spi",
"allwinner,sun8i-h3-spi";
reg = <0x01c05000 0x1000>;
interrupts = <10>;
clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_BUS_SPI0>;
clock-names = "ahb", "mod";
resets = <&ccu RST_BUS_SPI0>;
status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
};
spi1: spi@1c06000 {
compatible = "allwinner,suniv-spi",
"allwinner,sun8i-h3-spi";
reg = <0x01c06000 0x1000>;
interrupts = <11>;
clocks = <&ccu CLK_BUS_SPI1>, <&ccu CLK_BUS_SPI1>;
clock-names = "ahb", "mod";
resets = <&ccu RST_BUS_SPI1>;
status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
};
tcon0: lcd-controller@1c0c000 {
compatible = "allwinner,suniv-tcon";
reg = <0x01c0c000 0x1000>;
interrupts = <29>;
clocks = <&ccu CLK_BUS_LCD>,
<&ccu CLK_TCON>,
<&osc24M>; /* Still unknown */
clock-names = "ahb",
"tcon-ch0",
"tcon-ch1";
clock-output-names = "tcon-pixel-clock";
resets = <&ccu RST_BUS_LCD>;
reset-names = "lcd";
status = "disabled";
ports {
#address-cells = <1>;
#size-cells = <0>;
tcon0_in: port@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
tcon0_in_be0: endpoint@0 {
reg = <0>;
remote-endpoint = <&be0_out_tcon0>;
};
};
tcon0_out: port@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
};
};
};
mmc0: mmc@1c0f000 {
compatible = "allwinner,suniv-mmc",
"allwinner,sun7i-a20-mmc";
reg = <0x01c0f000 0x1000>;
clocks = <&ccu CLK_BUS_MMC0>,
<&ccu CLK_MMC0>,
<&ccu CLK_MMC0_OUTPUT>,
<&ccu CLK_MMC0_SAMPLE>;
clock-names = "ahb",
"mmc",
"output",
"sample";
resets = <&ccu RST_BUS_MMC0>;
reset-names = "ahb";
interrupts = <23>;
pinctrl-names = "default";
pinctrl-0 = <&mmc0_pins>;
status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
};
mmc1: mmc@1c10000 {
compatible = "allwinner,suniv-mmc",
"allwinner,sun7i-a20-mmc";
reg = <0x01c10000 0x1000>;
clocks = <&ccu CLK_BUS_MMC1>,
<&ccu CLK_MMC1>,
<&ccu CLK_MMC1_OUTPUT>,
<&ccu CLK_MMC1_SAMPLE>;
clock-names = "ahb",
"mmc",
"output",
"sample";
resets = <&ccu RST_BUS_MMC1>;
reset-names = "ahb";
interrupts = <24>;
status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
};
ccu: clock@1c20000 {
compatible = "allwinner,suniv-ccu";
reg = <0x01c20000 0x400>;
clocks = <&osc24M>, <&osc32k>;
clock-names = "hosc", "losc";
#clock-cells = <1>;
#reset-cells = <1>;
};
intc: interrupt-controller@1c20400 {
compatible = "allwinner,suniv-ic";
reg = <0x01c20400 0x400>;
interrupt-controller;
#interrupt-cells = <1>;
};
pio: pinctrl@1c20800 {
compatible = "allwinner,suniv-pinctrl";
reg = <0x01c20800 0x400>;
interrupts = <38>, <39>, <40>;
clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&osc32k>;
clock-names = "apb", "hosc", "losc";
gpio-controller;
interrupt-controller;
#interrupt-cells = <3>;
#gpio-cells = <3>;
spi0_pins_a: spi0-pins-pc {
pins = "PC0", "PC1", "PC2", "PC3";
function = "spi0";
};
lcd_rgb666_pins: lcd-rgb666-pins {
pins = "PD0", "PD1", "PD2", "PD3", "PD4",
"PD5", "PD6", "PD7", "PD8", "PD9",
"PD10", "PD11", "PD12", "PD13", "PD14",
"PD15", "PD16", "PD17", "PD18", "PD19",
"PD20", "PD21";
function = "lcd";
};
uart0_pins_a: uart-pins-pe {
pins = "PE0", "PE1";
function = "uart0";
};
mmc0_pins: mmc0-pins {
pins = "PF0", "PF1", "PF2", "PF3", "PF4", "PF5";
function = "mmc0";
};
};
timer@1c20c00 {
compatible = "allwinner,suniv-timer";
reg = <0x01c20c00 0x90>;
interrupts = <13>;
clocks = <&osc24M>;
};
wdt: watchdog@1c20ca0 {
compatible = "allwinner,sun6i-a31-wdt";
reg = <0x01c20ca0 0x20>;
};
uart0: serial@1c25000 {
compatible = "snps,dw-apb-uart";
reg = <0x01c25000 0x400>;
interrupts = <1>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&ccu CLK_BUS_UART0>;
resets = <&ccu RST_BUS_UART0>;
status = "disabled";
};
uart1: serial@1c25400 {
compatible = "snps,dw-apb-uart";
reg = <0x01c25400 0x400>;
interrupts = <2>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&ccu CLK_BUS_UART1>;
resets = <&ccu RST_BUS_UART1>;
status = "disabled";
};
uart2: serial@1c25800 {
compatible = "snps,dw-apb-uart";
reg = <0x01c25800 0x400>;
interrupts = <3>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&ccu CLK_BUS_UART2>;
resets = <&ccu RST_BUS_UART2>;
status = "disabled";
};
usb_otg: usb@1c13000 {
compatible = "allwinner,suniv-musb";
reg = <0x01c13000 0x0400>;
clocks = <&ccu CLK_BUS_OTG>;
resets = <&ccu RST_BUS_OTG>;
interrupts = <26>;
interrupt-names = "mc";
phys = <&usbphy 0>;
phy-names = "usb";
extcon = <&usbphy 0>;
allwinner,sram = <&otg_sram 1>;
status = "disabled";
};
usbphy: phy@1c13400 {
compatible = "allwinner,suniv-usb-phy";
reg = <0x01c13400 0x10>;
reg-names = "phy_ctrl";
clocks = <&ccu CLK_USB_PHY0>;
clock-names = "usb0_phy";
resets = <&ccu RST_USB_PHY0>;
reset-names = "usb0_reset";
#phy-cells = <1>;
status = "disabled";
};
fe0: display-frontend@1e00000 {
compatible = "allwinner,suniv-display-frontend";
reg = <0x01e00000 0x20000>;
interrupts = <30>;
clocks = <&ccu CLK_BUS_DE_FE>, <&ccu CLK_DE_FE>,
<&ccu CLK_DRAM_DE_FE>;
clock-names = "ahb", "mod",
"ram";
resets = <&ccu RST_BUS_DE_FE>;
status = "disabled";
ports {
#address-cells = <1>;
#size-cells = <0>;
fe0_out: port@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
fe0_out_be0: endpoint@0 {
reg = <0>;
remote-endpoint = <&be0_in_fe0>;
};
};
};
};
be0: display-backend@1e60000 {
compatible = "allwinner,suniv-display-backend";
reg = <0x01e60000 0x10000>;
reg-names = "be";
interrupts = <31>;
clocks = <&ccu CLK_BUS_DE_BE>, <&ccu CLK_DE_BE>,
<&ccu CLK_DRAM_DE_BE>;
clock-names = "ahb", "mod",
"ram";
resets = <&ccu RST_BUS_DE_BE>;
reset-names = "be";
assigned-clocks = <&ccu CLK_DE_BE>;
assigned-clock-rates = <300000000>;
ports {
#address-cells = <1>;
#size-cells = <0>;
be0_in: port@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
be0_in_fe0: endpoint@0 {
reg = <0>;
remote-endpoint = <&fe0_out_be0>;
};
};
be0_out: port@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
be0_out_tcon0: endpoint@0 {
reg = <0>;
remote-endpoint = <&tcon0_in_be0>;
};
};
};
};
};
};按照官方和https://whycan.cn/ 这个帖子，最后boot的时候卡在 Waiting for root device /dev/mtdblock3...
翻遍了帖子，内核配置也对着各位帖子调整了，三天了，无进度，只好前来求救。
编译出来的文件系统只有1.6M，不知道有没有问题.
下面贴出我的log和suniv-f1c100s-licheepi-nano.dts文件
Setting up a 800x480 lcd console (overscan 0x0)
In: serial@1c25000
Out: serial@1c25000
Err: serial@1c25000
Net: No ethernet found.
starting USB...
No controllers found
Hit any key to stop autoboot: 0
SF: Detected w25q128bv with page size 256 Bytes, erase size 4 KiB, total 16 MiB
device 0 offset 0x100000, size 0x4000
SF: 16384 bytes @ 0x100000 Read: OK
device 0 offset 0x110000, size 0x400000
SF: 4194304 bytes @ 0x110000 Read: OK
## Flattened Device Tree blob at 80c00000
Booting using the fdt blob at 0x80c00000
Loading Device Tree to 80e05000, end 80e09f3e ... OK
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.15.0-rc8-90681-g9b2fb662b0c8-dirty (cef@cef) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #11 Tue Jan 14 11:47:38 CST 2020
[ 0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
[ 0.000000] CPU: VIVT data cache, VIVT instruction cache
[ 0.000000] OF: fdt: Machine model: Lichee Pi Nano
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] random: fast init done
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 8128
[ 0.000000] Kernel command line: console=ttyS0,115200 panic=5 rootwait root=/dev/mtdblock3 rw rootfstype=jffs2
[ 0.000000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Memory: 25940K/32768K available (4096K kernel code, 154K rwdata, 976K rodata, 1024K init, 137K bss, 6828K reserved, 0K cma-reserved)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0xc2800000 - 0xff800000 ( 976 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xc2000000 ( 32 MB)
[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0x(ptrval) - 0x(ptrval) (5088 kB)
[ 0.000000] .init : 0x(ptrval) - 0x(ptrval) (1024 kB)
[ 0.000000] .data : 0x(ptrval) - 0x(ptrval) ( 155 kB)
[ 0.000000] .bss : 0x(ptrval) - 0x(ptrval) ( 138 kB)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000052] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000132] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.000795] Console: colour dummy device 80x30
[ 0.000899] Calibrating delay loop... 203.16 BogoMIPS (lpj=1015808)
[ 0.070276] pid_max: default: 32768 minimum: 301
[ 0.070702] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.070749] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.072212] CPU: Testing write buffer coherency: ok
[ 0.074172] Setting up static identity map for 0x80100000 - 0x80100058
[ 0.076877] devtmpfs: initialized
[ 0.083291] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.083365] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.083647] pinctrl core: initialized pinctrl subsystem
[ 0.086440] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.111241] SCSI subsystem initialized
[ 0.112450] usbcore: registered new interface driver usbfs
[ 0.112636] usbcore: registered new interface driver hub
[ 0.112843] usbcore: registered new device driver usb
[ 0.113419] pps_core: LinuxPPS API ver. 1 registered
[ 0.113450] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.114726] clocksource: Switched to clocksource timer
[ 0.146924] workingset: timestamp_bits=30 max_order=13 bucket_order=0
[ 0.159435] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.160015] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[ 0.166308] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[ 0.166359] io scheduler noop registered
[ 0.166379] io scheduler deadline registered
[ 0.166833] io scheduler cfq registered (default)
[ 0.166871] io scheduler mq-deadline registered
[ 0.166894] io scheduler kyber registered
[ 0.177873] suniv-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[ 0.368896] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[ 0.376619] console [ttyS0] disabled
[ 0.396898] 1c25000.serial: ttyS0 at MMIO 0x1c25000 (irq = 23, base_baud = 6250000) is a 16550A
[ 0.751616] console [ttyS0] enabled
[ 0.794019] brd: module loaded
[ 0.820427] loop: module loaded
[ 0.824559] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.831244] ehci-platform: EHCI generic platform driver
[ 0.836892] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 0.843129] ohci-platform: OHCI generic platform driver
[ 0.849122] i2c /dev entries driver
[ 0.854914] usbcore: registered new interface driver usbhid
[ 0.860499] usbhid: USB HID core driver
[ 0.875105] hctosys: unable to open rtc device (rtc0)
[ 0.880772] vcc3v3: disabling
[ 0.884881] Waiting for root device /dev/mtdblock3...
[ 208.784839] random: crng init doneDTS
// SPDX-License-Identifier: (GPL-2.0+ OR X11)
/*
* Copyright 2018 Icenowy Zheng <icenowy@aosc.io>
*/
/dts-v1/;
#include "suniv-f1c100s.dtsi"
#include <dt-bindings/gpio/gpio.h>
/ {
model = "Lichee Pi Nano";
compatible = "licheepi,licheepi-nano", "allwinner,suniv-f1c100s",
"allwinner,suniv";
aliases {
serial0 = &uart0;
spi0 = &spi0;
};
chosen {
stdout-path = "serial0:115200n8";
};
panel: panel {
compatible = "qiaodian,qd43003c0-40", "simple-panel";
#address-cells = <1>;
#size-cells = <0>;
enable-gpios = <&pio 4 6 GPIO_ACTIVE_HIGH>;
port@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
panel_input: endpoint@0 {
reg = <0>;
remote-endpoint = <&tcon0_out_lcd>;
};
};
};
reg_vcc3v3: vcc3v3 {
compatible = "regulator-fixed";
regulator-name = "vcc3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
};
&de {
status = "okay";
};
&mmc0 {
vmmc-supply = <®_vcc3v3>;
bus-width = <4>;
broken-cd;
status = "okay";
};
&otg_sram {
status = "okay";
};
&spi0 {
pinctrl-names = "default";
pinctrl-0 = <&spi0_pins_a>;
status = "okay";
spi-max-frequency = <50000000>;
flash: w25q128@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "winbond,w25q128", "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <50000000>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "u-boot";
reg = <0x000000 0x100000>;
read-only;
};
partition@100000 {
label = "dtb";
reg = <0x100000 0x10000>;
read-only;
};
partition@110000 {
label = "kernel";
reg = <0x110000 0x400000>;
read-only;
};
partition@510000 {
label = "rootfs";
reg = <0x510000 0xAF0000>;
};
};
};
};
&tcon0 {
pinctrl-names = "default";
pinctrl-0 = <&lcd_rgb666_pins>;
status = "okay";
};
&tcon0_out {
tcon0_out_lcd: endpoint@0 {
reg = <0>;
remote-endpoint = <&panel_input>;
};
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;
status = "okay";
};
&usb_otg {
dr_mode = "otg";
status = "okay";
};
&usbphy {
usb0_id_det-gpio = <&pio 4 2 GPIO_ACTIVE_HIGH>; /* PE2 */
status = "okay";
};页次： 1