[BPI-R64] Kernel-Development

Banana Pi Router design BPI-R64(MT7622)
1

Hi,

because i do not relly want to spam the promotion-thread of R64 i start here a new for kernel-development…

i have r64 booting using jacks debian-image and kernel 4.19 from my 4.19-r64-main branch

https://github.com/frank-w/BPI-R2-4.14/tree/4.19-r64-main

i got this warnings on compile (maybe anybody knows how to fix them):

arch/arm64/Makefile:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:40: LSE atomics not supported by binutils
arch/arm64/Makefile:48: Detected assembler with broken .inst; disassembly will be unreliable

ethernet works so far (rtl8367s) with 2 gmacs but without dsa. maybe this will replaced by a chip with dsa-driver

mt7615-wifi is currently not supported in 4.19 due to closed source driver, maybe it will integrated into openwrt’s mt76 driver-collection, in last HW-release this chip is dropped from board, so i will not work on it at this time

bluetooth is integrated but not working yet, also gpio for booth look here

for bootup i recognized some messages which may be errors/problems (i don’t understand them):

[    1.214807] RGU get IRQ ID failed
...
[    1.534336] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]                                                                              
[    1.541347] pci_bus 0000:00: root bus resource [mem 0x20000000-0x2fffffff]                                                                             
[    1.548449] pci_bus 0000:00: root bus resource [bus 00-ff]                                                                                             
[    1.554115] pci_bus 0000:00: scanning bus                                                                                                              
[    1.558290] pci 0000:00:00.0: [14c3:3258] type 01 class 0x060000                                                                                       
[    1.564516] pci 0000:00:00.0: ignoring class 0x060000 (doesn't match header type 01)                                                                   
[    1.573895] pci_bus 0000:00: fixups for bus                                                                                                            
[    1.578222] pci 0000:00:00.0: scanning [bus 00-00] behind bridge, pass 0                                                                               
[    1.585140] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring                                                                
[    1.593416] pci 0000:00:00.0: scanning [bus 00-00] behind bridge, pass 1                                                                               
[    1.600431] pci_bus 0000:01: scanning bus                                                                                                              
[    1.604703] pci 0000:01:00.0: [14c3:7615] type 00 class 0x000280                                                                                       
[    1.611142] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x000fffff 64bit]                                                                              
[    1.619081] pci 0000:01:00.0: 2.000 Gb/s available PCIe bandwidth, limited by 2.5 GT/s x1 link at 0000:00:00.0 (capable of 4.000 Gb/s with 5 GT/s x1 li
nk)                                                                                                                                                       
[    1.634578] pci_bus 0000:01: fixups for bus                                                                                                            
[    1.638900] pci_bus 0000:01: bus scan returning with max=01                                                                                            
[    1.644658] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01                                                                                
[    1.651491] pci_bus 0000:00: bus scan returning with max=01                                                                                            
[    1.657255] pci 0000:01:00.0: BAR 0: no space for [mem size 0x00100000 64bit]
[    1.664622] pci 0000:01:00.0: BAR 0: failed to assign [mem size 0x00100000 64bit]                                                                      
[    1.672348] pci 0000:00:00.0: not setting up bridge for bus 0000:01

any thougts on them?

uboot-source is only 2014-04, i will try to remove unecessary bootmenu-items only…have not tried network-boot yet

2

I suggest you to upgrade kernel to v5.0 to fix these issue., but as for BT you could try this patch https://patchwork.kernel.org/patch/10728073/

I’m working on mt7615 now, but there are lots of things to do.

3

as 4.19 is the last LTS i try to get this version running…i can try 5.0 for sure (after it is released), but maybe you know patches to fix this errors/warnings

first one seems to be related to watchdog

the others seem to depend on “ignoring class” warning

https://github.com/frank-w/BPI-R2-4.14/blob/4.19-r64-main/drivers/pci/probe.c#L1732 / 1611 (type x class y)…maybe a wrong/missing setting in dts?

for BT i’ll try

for mt7615, does this mean that there will be a opensource-driver in mainline/recent kernel version?

have you an idea about the gpio-issue? how far is uboot-upstream?

4

bt with tty-path brings same error

RGU and class-problem seems to be fixed in 5.0-rc4

root@bpi-r64:~# uname -r                                                                                                                                      
5.0.0-rc4-r64
root@bpi-r64:~# dmesg| grep fail                                                                                                                              
[    0.126471] mtk-tphy 1a0c4000.usb-phy: failed to get ref_clk(id-1)                                                                                         
[    1.688220] pci 0000:00:00.0: BAR 0: failed to assign [mem size 0x100000000 64bit pref]

and also the class-error, but not the RGU-one

root@bpi-r64:~# dmesg| grep pci                                                 
[    1.527089] mtk-pcie 1a140000.pcie: Port1 link down                          
[    1.532272] mtk-pcie 1a140000.pcie: PCI host bridge to bus 0000:00           
[    1.538659] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]    
[    1.545670] pci_bus 0000:00: root bus resource [mem 0x20000000-0x2fffffff]   
[    1.552771] pci_bus 0000:00: root bus resource [bus 00-ff]                   
[    1.558437] pci_bus 0000:00: scanning bus                                    
[    1.562613] pci 0000:00:00.0: [14c3:3258] type 01 class 0x060000             
[    1.568843] pci 0000:00:00.0: ignoring class 0x060000 (doesn't match header )
[    1.578222] pci_bus 0000:00: fixups for bus                                  
[    1.582551] pci 0000:00:00.0: scanning [bus 00-00] behind bridge, pass 0     
[    1.589471] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reg
[    1.597747] pci 0000:00:00.0: scanning [bus 00-00] behind bridge, pass 1     
[    1.604758] pci_bus 0000:01: scanning bus                                    
[    1.609031] pci 0000:01:00.0: [14c3:7615] type 00 class 0x000280             
[    1.615478] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x000fffff 64bit]    
[    1.623427] pci 0000:01:00.0: 2.000 Gb/s available PCIe bandwidth, limited b)
[    1.638919] pci_bus 0000:01: fixups for bus                                  
[    1.643245] pci_bus 0000:01: bus scan returning with max=01                  
[    1.649002] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01      
[    1.655838] pci_bus 0000:00: bus scan returning with max=01                  
[    1.661603] pci 0000:01:00.0: BAR 0: no space for [mem size 0x00100000 64bit]
[    1.668971] pci 0000:01:00.0: BAR 0: failed to assign [mem size 0x00100000 6]
[    1.676697] pci 0000:00:00.0: not setting up bridge for bus 0000:01

have not get switch working in 5.0 yet…both gmacs are available, i can assign ip to it but ping is not possible

full boot-log: boot_5.0.0-rc4-r64.log (17,2 KB)

pci-class is maybe this: https://github.com/frank-w/BPI-R2-4.14/commit/a7f172ab6a8e755e60311f27512034b0441ef421#diff-e17a7a719b4628348b21e769517d5317

watchdog is maybe caused by my changes (have used 4.19 for r2 as base…with merged wifi-driver which modifies also watchdog)

have now created a new 4.19-tree for r64…now i have the same errors as in 5.0…but ethernet is working

root@bpi-r64:~# uname -r                                                        
4.19.0-r64-main_new 
root@bpi-r64:~# dmesg| grep fail                                                
[    0.129066] mtk-tphy 1a0c4000.usb-phy: failed to get ref_clk(id-1)           
[    1.668971] pci 0000:01:00.0: BAR 0: failed to assign [mem size 0x00100000 6]
root@bpi-r64:~# dmesg| grep hci0                                                
[   15.075621] Bluetooth: hci0: Execution of wmt command timed out              
[   15.075682] Bluetooth: hci0: Failed to send wmt patch dwnld (-110)           
[   25.315647] Bluetooth: hci0: Execution of wmt command timed out              
[   25.315713] Bluetooth: hci0: Failed to send wmt patch dwnld (-110)

boot_4.19.0-r64-main_new.log (16,8 KB)

5

for mt7615, does this mean that there will be a opensource-driver in mainline/recent kernel version?

=> yes, it is still far away from the target. Share a mt7615-devel repo to you.

i just can ping now , but I have not push the related patches yet.

have you an idea about the gpio-issue? how far is uboot-upstream?

what gpio-issue? uboot-upstream(with ATF) is in my todo list - due to limited time.

1 Like
6

You can ping through switch or wifi (pushed patches for first or second)?

Gpio-issue:

after adding CONFIG_GPIO_SYSFS to my Kernel i see /sys/class/gpio, but i cannot export it (i try gpio56=pin3)

root@bpi-iot-ros-ai:~# cat /sys/kernel/debug/pinctrl/10211000.pinctrl-pinctrl_mt7622/gpio-ranges
GPIO ranges handled:
0: pinctrl_mt7622 GPIOS [409 - 511] PINS [0 - 102]
root@bpi-iot-ros-ai:~# GPIO_NO=$((409+56))
root@bpi-iot-ros-ai:~# echo $GPIO_NO
465
root@bpi-iot-ros-ai:~# echo $GPIO_NO > /sys/class/gpio/export
-bash: echo: write error: Invalid argument

BT-issue:

root@bpi-iot-ros-ai:~# ls /lib/firmware/mediatek
mt7622pr2h.bin
root@bpi-iot-ros-ai:~# dmesg | grep hci0
[   14.819610] Bluetooth: hci0: Execution of wmt command timed out   
[   14.819672] Bluetooth: hci0: Failed to send wmt patch dwnld (-110)

see here for more

also have not get emmc-boot to work…it seems, that problem is preloader (have also set pconf to 0x48 via mmcutils because it was 0x0)…

F0: 102B 0000
F5: 480A 0031
F5: 480A 0031
F3: 4002 0000
F2: 300C 0000
00: 1005 0000
F5: 480A 0031
F5: 480A 0031
F3: 4002 0000
F2: 300C 0000
01: 102A 0001
02: 1005 0000
BP: 0000 00C0 [0001]
T0: 0000 030F [000F]
System halt!

sd-card bootup looks like this:

F0: 102B 0000
F5: 0000 0000
V0: 0000 0000 [0001]                                                                                                                                           
00: 0000 0000                                                                                                                                                  
BP: 0000 0041 [0000]                                                                                                                                           
G0: 0190 0000                                                                                                                                                  
T0: 0000 040C [000F]                                                                                                                                           
Jump to BL                                                                                                                                                     
                                                                                                                                                               
UNIVPLL_CON0 = 0xFE000000!!!                                                                                                                                   
mt_pll_init: Set pll frequency for 25M crystal                                                                                                                 
RAM_CONSOLE preloader last status: 0x0 0x0 0x0 0x0 0x0 0x0                                                                                                     
[PMIC_WRAP]wrap_init pass,the return value=0.                                                                                                                  
[pmic_init] Preloader Start..................                                                                                                                  
[pmic_init] MT6380 CHIP Code, reg_val = 0, 1:E2  0:E3
7

Bluetooth-issue is solved by increased sleep in SCPSYS-driver Banana Pi BPI-R64 open source router with MTK MT7622 64 bit chip design

gpio-issue is solved by disabling i2c1 (which shares pin on gpio-header): Banana Pi BPI-R64 open source router with MTK MT7622 64 bit chip design

which uart is debug-uart? this looks like uart0, but looking on gpio-header (there are uart0+1) suggests uart2 as debug-uart like on r2

in dts uart1 is completely missing…i see uart1 in mt7622.dtsi which is included, but maybe i miss uart1_pins which is defined for the other 2 in dts

	uart0_pins: uart0-pins {
		mux {
			function = "uart";
			groups = "uart0_0_tx_rx" ;
		};
	};

	uart2_pins: uart2-pins {
		mux {
			function = "uart";
			groups = "uart2_1_tx_rx" ;
		};
	};

why is uart2=uart2_1_tx_rx (what does the 1 mean)?

if i look into drivers/pinctrl/mediatek/pinctrl-mt7622.c i see:

PINCTRL_PIN_GROUP("uart0_0_tx_rx", mt7622_uart0_0_tx_rx),
PINCTRL_PIN_GROUP("uart1_0_tx_rx", mt7622_uart1_0_tx_rx),
PINCTRL_PIN_GROUP("uart1_0_rts_cts", mt7622_uart1_0_rts_cts),
PINCTRL_PIN_GROUP("uart1_1_tx_rx", mt7622_uart1_1_tx_rx),
PINCTRL_PIN_GROUP("uart1_1_rts_cts", mt7622_uart1_1_rts_cts),
PINCTRL_PIN_GROUP("uart2_0_tx_rx", mt7622_uart2_0_tx_rx),
PINCTRL_PIN_GROUP("uart2_0_rts_cts", mt7622_uart2_0_rts_cts),
PINCTRL_PIN_GROUP("uart2_1_tx_rx", mt7622_uart2_1_tx_rx),
PINCTRL_PIN_GROUP("uart2_1_rts_cts", mt7622_uart2_1_rts_cts),
PINCTRL_PIN_GROUP("uart2_2_tx_rx", mt7622_uart2_2_tx_rx),

for uart1 i have uart1_0_tx_rx and uart1_1_tx_rx…which one is the right one?

static int mt7622_uart0_0_tx_rx_pins[] = { 6, 7, };//not matching gpio-number (=59,60) => maybe the debug-uart?
...
static int mt7622_uart1_0_tx_rx_pins[] = { 55, 56, };
static int mt7622_uart1_1_tx_rx_pins[] = { 73, 74, };
...
static int mt7622_uart2_1_tx_rx_pins[] = { 51, 52, }; //=gpio-numbers of uart1

no uart1_x_tx_rx does match gpio-numbers of uart0 on gpio-header (uart1 on gpio=uart2 in dts)

If these numbers are the gpios i guess uart1 (uart0 on gpioheader) should use this:

static int mt7622_uart2_2_tx_rx_pins[] = { 59, 60, };

i can confirm that debug-uart is the uart0 from dts…if i disable it i get no console-output after ATF-infos

## Booting kernel from Legacy Image at 44000000 ...                             
   Image Name:   Linux Kernel 4.19.0-r64-main                                   
   Image Type:   ARM Linux Kernel Image (uncompressed)                          
   Data Size:    8527880 Bytes = 8.1 MiB                                        
   Load Address: 40080000                                                       
   Entry Point:  40080000                                                       
   Verifying Checksum ... OK                                                    
## Flattened Device Tree blob at 47000000                                       
   Booting using the fdt blob at 0x47000000                                     
   Loading Kernel Image ... OK                                                  
   Loading Device Tree to 5cf02000, end 5cf0a835 ... OK                         
                                                                                
Starting kernel ...                                                             
                                                                                
[ATF][     6.145169]save kernel info                                            
[ATF][     6.148370]Kernel_EL2                                                  
[ATF][     6.151127]Kernel is 64Bit                                             
[ATF][     6.154314]pc=0x40080000, r0=0x5cf02000, r1=0x0                        
INFO:    BL3-1: Preparing for EL3 exit to normal world, Kernel                  
INFO:    BL3-1: Next image address = 0x40080000                                 
INFO:    BL3-1: Next image spsr = 0x3c9                                         
[ATF][     6.172581]el3_exit

no output after that, but device boots and i can access via ssh

any idea on preloader for emmc?

is there a driver for soc-internal bgn-wifi (https://www.mediatek.com/products/homeNetworking/mt7622)?

for pwm i defined this:

pwm1_pins: pwm1-2-pins {
    mux {
        function = "pwm";
        groups = "pwm_ch1_0";/* mt7622_pwm_ch1_0_pins[] = { 51, }; */
    };
};

pwm2_pins: pwm1-2-pins {
    mux {
        function = "pwm";
        groups = "pwm_ch2_0"; /*mt7622_pwm_ch2_0_pins[] = { 52, };*/
    };
};

pwm4_pins: pwm1-2-pins {
    mux {
        function = "pwm";
        groups = "pwm_ch4_1"; /*mt7622_pwm_ch4_1_pins[] = { 67, };*/
    };
};
pwm5_pins: pwm1-2-pins {
    mux {
        function = "pwm";
        groups = "pwm_ch5_0"; /*mt7622_pwm_ch5_0_pins[] = { 68, };*/
    };
};

pwm6_pins: pwm1-2-pins {
    mux {
        function = "pwm";
        groups = "pwm_ch6_0"; /*mt7622_pwm_ch6_0_pins[] = { 69, };*/
    };
};

pwm7_pins: pwm1-2-pins {
    mux {
        function = "pwm";
        groups = "pwm_ch7_2";
    };
};

&pwm {
    pinctrl-names = "default";
    status = "okay";
    pwm1 {
        pinctrl-0 = <&pwm1_pins>;
    };
    pwm2 {
        pinctrl-0 = <&pwm2_pins>;
    };
    pwm4 {
        pinctrl-0 = <&pwm4_pins>;
    };
    pwm5 {
        pinctrl-0 = <&pwm5_pins>;
    };
    pwm6 {
        pinctrl-0 = <&pwm6_pins>;
    };
    pwm7 {
        pinctrl-0 = <&pwm7_pins>;
    };
};

is that right? it compiles :slight_smile: and i see nodes in sysfs:

/sys/firmware/devicetree/base/pwm@11006000/pwm7
/sys/firmware/devicetree/base/pwm@11006000/pwm5
/sys/firmware/devicetree/base/pwm@11006000/pwm1
/sys/firmware/devicetree/base/pwm@11006000/pwm6
/sys/firmware/devicetree/base/pwm@11006000/pwm4
/sys/firmware/devicetree/base/pwm@11006000/pwm2

but gpio101 is not blocked as i expected, so i guess its is not working

maybe this is related: https://patchwork.kernel.org/project/linux-mediatek/list/?series=68207 but as far as i see it only maps the clocks and do not register a new pincontrol to subnode

for r2 pwm is defined like this (with constants, also only 1 pwm-node + 1 pin-define):

pwm_pins_a: pwm-default {
    pins-pwm {
        pinmux = <MT7623_PIN_203_PWM0_FUNC_PWM0>,
             <MT7623_PIN_204_PWM1_FUNC_PWM1>,
             <MT7623_PIN_205_PWM2_FUNC_PWM2>,
             <MT7623_PIN_206_PWM3_FUNC_PWM3>,
             <MT7623_PIN_207_PWM4_FUNC_PWM4>;
    };
};

but how to do this for r64, which has complete different pin-define?

8

R64 pinctrl arch is totally different so you should find the correct pin in the lookup table (pinctrl-mt7622.c), then set corresponding functions & groups.

But, what is the problem now? no console output?

9

I have console output after reenabling uart0 (was unsure which one is debug-uart).

I try to enable all pwms on gpio-header. If i do like i2c,i need to copy full pwm-node in dtsi for all pwms,right? Which adresses should i use? And imho i have to separate the clocks

I think i have used the correct ones for _pins-node,but i don’t get the mapping to top-node (currently only one “pwm”) working

this in dtsi:

pwm: pwm@11006000 {
    compatible = "mediatek,mt7622-pwm";
    reg = <0 0x11006000 0 0x1000>;
    interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_LOW>;
    clocks = <&topckgen CLK_TOP_PWM_SEL>,
         <&pericfg CLK_PERI_PWM_PD>,
         <&pericfg CLK_PERI_PWM1_PD>,
         <&pericfg CLK_PERI_PWM2_PD>,
         <&pericfg CLK_PERI_PWM3_PD>,
         <&pericfg CLK_PERI_PWM4_PD>,
         <&pericfg CLK_PERI_PWM5_PD>,
         <&pericfg CLK_PERI_PWM6_PD>;
    clock-names = "top", "main", "pwm1", "pwm2", "pwm3", "pwm4",
              "pwm5", "pwm6";
    status = "disabled";
};

gets overridden in dts

&pwm {
    pinctrl-names = "default";
    pinctrl-0 = <&pwm7_pins>;
    status = "okay";
}

can i simply add pinctrl-1,pinctrl-2,… in dts (have already defined pwmx_pins above)? or do i need to copy entire node (as done for i2c and spi) in dtsi? how does the system knows currently that it should use clock for pwm7 (which is missing in dtsi…only 1-6)?

tried to configure pwm7 (which is defined in dts)…

root@bpi-r64:~# echo 1 >/sys/class/pwm/pwmchip0/export                          
root@bpi-r64:~# echo 2 >/sys/class/pwm/pwmchip0/export                          
root@bpi-r64:~# echo 7 >/sys/class/pwm/pwmchip0/export                          
-bash: echo: write error: No such device                                        
root@bpi-r64:~# ls /sys/class/pwm/pwmchip0                                      
device  export  npwm  power  pwm1  pwm2  subsystem  uevent  unexport
10

i activated pwm7 (pin 7) with the following patch from sean wang:

diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/medi
atek/mt7622.dtsi
index f166df933ca7..70a4fc37d919 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
@@ -388,9 +388,10 @@
                         <&pericfg CLK_PERI_PWM3_PD>,
                         <&pericfg CLK_PERI_PWM4_PD>,
                         <&pericfg CLK_PERI_PWM5_PD>,
-                        <&pericfg CLK_PERI_PWM6_PD>;
+                        <&pericfg CLK_PERI_PWM6_PD>,
+                        <&pericfg CLK_PERI_PWM7_PD>;
                clock-names = "top", "main", "pwm1", "pwm2", "pwm3", "pwm4",
-                             "pwm5", "pwm6";
+                             "pwm5", "pwm6", "pwm7";
                status = "disabled";
        };
 
diff --git a/drivers/pwm/pwm-mediatek.c b/drivers/pwm/pwm-mediatek.c
index eb6674ce995f..63c92250e063 100644
--- a/drivers/pwm/pwm-mediatek.c
+++ b/drivers/pwm/pwm-mediatek.c
@@ -285,7 +285,7 @@ static const struct mtk_pwm_platform_data mt2712_pwm_data = {
 };
 
 static const struct mtk_pwm_platform_data mt7622_pwm_data = {
-       .num_pwms = 6,
+       .num_pwms = 7,
        .pwm45_fixup = false,
        .has_clks = true,
 };

then i try to set 1hz period…fail…i can set faster frequency, but don’t see this on a simple LED

root@bpi-r64:~# echo 1000000000 > /sys/class/pwm/pwmchip0/pwm6/period
-bash: echo: write error: Invalid argument
root@bpi-r64:~# echo 10000000 > /sys/class/pwm/pwmchip0/pwm6/period          
root@bpi-r64:~# echo 5000000 > /sys/class/pwm/pwmchip0/pwm6/duty_cycle          
root@bpi-r64:~# echo 1 > /sys/class/pwm/pwmchip0/pwm6/enable 
root@bpi-r64:~#

main problem i’m facing currently is that sometimes my sdcard is not recognized while booting kernel (uboot has no problem with it)

[    3.179211] mmc0: tried to HW reset card, got error -84
[    3.185586] print_req_error: I/O error, dev mmcblk0, sector 4924424
[    3.192592] print_req_error: I/O error, dev mmcblk0, sector 4924425
[    3.199155] print_req_error: I/O error, dev mmcblk0, sector 4924426
[    3.206770] print_req_error: I/O error, dev mmcblk0, sector 4924428
[    3.213346] print_req_error: I/O error, dev mmcblk0, sector 4924429
[    3.219994] print_req_error: I/O error, dev mmcblk0, sector 4924430
[    3.227016] print_req_error: I/O error, dev mmcblk0, sector 4924431
[    3.233849] print_req_error: I/O error, dev mmcblk0, sector 1650688
[    3.241240] print_req_error: I/O error, dev mmcblk0, sector 1650688
[    3.247752] Starting init: /sbin/init exists but couldn't execute it (error )
[    3.255304] Run /etc/init as init process
[    3.261017] print_req_error: I/O error, dev mmcblk0, sector 800984
[    3.269822] EXT4-fs error (device mmcblk0p2): ext4_find_entry:1439: inode #10
[    3.291701] mmcblk0: error -84 requesting status
[    3.358604] mmc0: tried to HW reset card, got error -84
[    3.364002] mmcblk0: recovery failed!
[    3.367787] Buffer I/O error on dev mmcblk0p2, logical block 0, lost sync pae
[    3.375792] EXT4-fs (mmcblk0p2): I/O error while writing superblock
[    3.382275] Starting init: /etc/init exists but couldn't execute it (error -)
[    3.389744] Run /bin/init as init process
[    3.397773] EXT4-fs error (device mmcblk0p2): ext4_find_entry:1439: inode #20

fsck and badblocks on my host-pc shows no errors…it’s a samsung evo+ 32GB

11

Driver

FW:

You can try basic AP mode now. Power saving stuff and STA mode are not ready.

Simple hostapd configuration:

interface=wlan0 driver=nl80211 ssid=126test hw_mode=g channel=1 ieee80211n=1

iperf result in open environment (HT 2x2) image001

1 Like
12

Thank you for your work,r64 onboard mt7615 is also supported?

13

Onboard mt7622 (rbus 4*4n) doesn’t yet support, but i think it is quite easy to add rbus stuff.

Firstly you can try PCIe interface.

14

have added driver to new dir “mt76_new” because 4.19 contains already a mt76-directory, changed Makefiles and KConfigs to match new directory

build without errors/warnings/… but pci-probe failes

[    5.316546] mt7615e 0000:01:00.0: assign IRQ: got 124                                                                                                   
[    5.322113] pci 0000:00:00.0: enabling bus mastering                                                                                                    
[    5.327361] mt7615e: probe of 0000:01:00.0 failed with error -22

root@bpi-r64:~# lspci                                                                                                                                      
00:00.0 Non-VGA unclassified device: MEDIATEK Corp. Device 3258                                                                                            
01:00.0 Unclassified device [0002]: MEDIATEK Corp. Device 7615                                                                                             
root@bpi-r64:~# ls /lib/firmware/mediatek/                                                                                                                 
mt7615_cr4.bin  mt7615_n9.bin  mt7615_rom_patch.bin  mt7622pr2h.bin                                                                                        
root@bpi-r64:~# find /lib/modules/$(uname -r) -iname '*mt7615*'                                                                                            
/lib/modules/4.19.20-r64-main/kernel/drivers/net/wireless/mediatek/mt76_new/mt7615                                                                         
/lib/modules/4.19.20-r64-main/kernel/drivers/net/wireless/mediatek/mt76_new/mt7615/mt7615e.ko                                                              
root@bpi-r64:~#

error-essage is a global one (not mt7615 specific)

drivers/base/dd.c:570:		       "%s: probe of %s failed with error %d\n",

-22 should be “invalid argument”

https://elixir.bootlin.com/linux/v4.19.20/source/include/uapi/asm-generic/errno-base.h#L26

can i enable a more verbose debug? have already “debug=7” in my cmdline and CONFIG_PCI_DEBUG set

also i cannot remove the module (to reload again)

root@bpi-r64:~# modprobe -r mt7615e                                                                                                                        
modprobe: ERROR: ../libkmod/libkmod-module.c:777 kmod_module_remove_module() could not remove 'mt7615e': Function not implemented

ok, this needs option “CONFIG_MODULE_UNLOAD=y”

15

I didn’t see that error before. You should insmod 7615 module, then it will load firmware automatically.

16

i had reloaded module via

modprobe -r mt7615e
modprobe mt7615e

same error

can i debug this anyhow?

i currently use jacks jessie image, because samsung microsd (debian stretch) is mostly undetected by kernel

17

did you load the other dependency modules? something like mt76.ko ?

18

mt76, mac80211 and cfg80211 will be loaded automaticly

01:00.0 Unclassified device [0002]: MEDIATEK Corp. Device 7615 (prog-if 80)                                                                       
        Subsystem: Device 7615:14c3                                                                                                               
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-                                     
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-                                      
        Interrupt: pin A routed to IRQ 124                                                                                                        
        Region 0: Memory at <unassigned> (64-bit, non-prefetchable) [disabled]                                                                    
        Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+                                                                                
                Address: 0000000000000000  Data: 0000                                                                                             
        Capabilities: [78] Power Management version 3                                                                                             
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0-,D1-,D2-,D3hot-,D3cold-)                                                      
                Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-                                                                            
        Capabilities: [80] Express (v2) Endpoint, MSI 00                                                                                          
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <2us, L1 <2us                                                              
                        ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-                                                                           
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-                                                                
                        RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+                                                                              
                        MaxPayload 128 bytes, MaxReadReq 512 bytes                                                                                
                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-                                                               
                LnkCap: Port #1, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <64ns, L1 <2us                                              
                        ClockPM- Surprise- LLActRep- BwNot-                                                                                       
                LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-                                                                            
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-                                                                            
                LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-                                                
                DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR-, OBFF Not Supported                                                 
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled                                                       
                LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-                                                                     
                         Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-                                         
                         Compliance De-emphasis: -6dB                                                                                             
                LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-                                            
                         EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-                                                       
        Capabilities: [100 v1] Virtual Channel                                                                                                    
                Caps:   LPEVC=0 RefClk=100ns PATEntryBits=1                                                                                       
                Arb:    Fixed- WRR32- WRR64- WRR128-                                                                                              
                Ctrl:   ArbSelect=Fixed                                                                                                           
                Status: InProgress-                                                                                                               
                VC0:    Caps:   PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-                                                                        
                        Arb:    Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-                                                                     
                        Ctrl:   Enable+ ID=0 ArbSelect=Fixed TC/VC=ff                                                                             
                        Status: NegoPending- InProgress-

lsmod after bootup and reloading of module

root@bpi-r64:~# lsmod                                                                                                                             
Module                  Size  Used by                                                                                                             
mt7615e                32768  0                                                                                                                   
mt76                   40960  1 mt7615e                                                                                                           
mac80211              339968  2 mt76,mt7615e                                                                                                      
cfg80211              249856  3 mt76,mt7615e,mac80211                                                                                             
root@bpi-r64:~# modprobe -r mt7615e                                                                                                               
root@bpi-r64:~# echo "9 9 9 9" > /proc/sys/kernel/printk                                                                                          
root@bpi-r64:~# cat /proc/sys/kernel/printk                                                                                                       
9       9       9       9                                                                                                                         
root@bpi-r64:~# lsmod                                                                                                                             
Module                  Size  Used by                                                                                                             
root@bpi-r64:~# modprobe mt7615e                                                                                                                  
[  144.632560] cfg80211: Loading compiled-in X.509 certificates for regulatory database                                                           
[  144.641521] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'                                                                         
[  144.648398] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2                                                 
[  144.657379] cfg80211: failed to load regulatory.db                                                                                             
[  144.673037] mt7615e 0000:01:00.0: assign IRQ: got 124                                                                                          
[  144.678388] mt7615e: probe of 0000:01:00.0 failed with error -22                                                                               
root@bpi-r64:~# lsmod                                                                                                                             
Module                  Size  Used by                                                                                                             
mt7615e                32768  0                                                                                                                   
mt76                   40960  1 mt7615e                                                                                                           
mac80211              339968  2 mt76,mt7615e                                                                                                      
cfg80211              249856  3 mt76,mt7615e,mac80211                                                                                             
root@bpi-r64:~#
19

does pcie host controller work on 4.19? or you can add some printk in mt7615_pci_probe() and mt7615_init_hardware() as everything goes well on my 7622 (5.0-rc1).

20

at least i see the card in lspci…

root@bpi-r64:~# modprobe mt7615e                                                                                                                  
[   51.599990] DEBUG: Passed really_probe 477                                                                                                     
[   51.604379] DEBUG: Passed really_probe 480 ret:0                                                                                               
[   51.609411] DEBUG: Passed really_probe 483                                                                                                     
[   51.613881] DEBUG: Passed really_probe 487                                                                                                     
[   51.618309] DEBUG: Passed really_probe 493                                                                                                     
[   51.622805] mt7615e 0000:01:00.0: assign IRQ: got 124                                                                                          
[   51.628594] DEBUG: Passed mt7615_pci_probe 88 ret:0                                                                                            
[   51.633836] DEBUG: Passed mt7615_pci_probe 93 ret:-22                                                                                          
[   51.639229] DEBUG: Passed really_probe 504 ret:-22                                                                                             
[   51.644310] mt7615e: probe of 0000:01:00.0 failed with error -22

which leads to this:

ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
printk(KERN_ALERT "DEBUG: Passed %s %d ret:%d \n",__FUNCTION__,__LINE__,ret);
if (ret)
    return ret;