TX2 Carrier Board-A302 NV USB and PCIe USB Debug
一、硬件连接
W8&W9 --- PCIe-USB3.0 转接口（1xPCIe-to-4xUSB3.0，共享5.0GHz带宽）
W7 --- USBSS0（靠近PCB板侧，即下侧USB） + USBSS1
Tegra自带USB 控制器名称： tegra-xusb
PCIe-USB扩展 控制器名称： xhci_hcd
image.png
image.png
二、ODMDATA （参考Jetson TX2_OEM_Product_DesignGuide.pdf)
ODMDATA 是与PCIE&USB 配置相关
配置修改路径：Linux_for_Tegra/p2771-0000.conf.common
查看ODMDATA &USB Phy/Pinmux名称:
ls -l /sys/firmware/devicetree/base/chosen/plugin-manager/odm-data
xxd /proc/device-tree/xhci@3530000/phy-names
ls /proc/device-tree/pinctrl@3520000/pinmux/
ls /proc/device-tree/pcie-controller@10003000/
image.png
Lane allocation can be performed by either ODMDATA, in p2771-0000.conf.common by default, or alloted to UPHY to each client in the bpmp-dtb file.
For example:
- ODMDATA=0x1090000 default for Jetson TX2 for Configuration #2
- ODMDATA=0x90000 for Configuration #1
- ODMDATA=0x6090000 for Configuration #3
image.png
ODMDATA = 0x609000
nvidia@tw-tx2:~$ ls -l /sys/firmware/devicetree/base/chosen/plugin-manager/odm-data
total 0
-r--r--r-- 1 root root 4 4月 18 17:22 android-build
-r--r--r-- 1 root root 4 4月 18 17:22 disable-pmic-wdt
-r--r--r-- 1 root root 4 4月 18 17:22 disable-sdmmc-hwcq
-r--r--r-- 1 root root 4 4月 18 17:22 disable-tegra-wdt
-r--r--r-- 1 root root 4 4月 18 17:22 enable-debug-console
-r--r--r-- 1 root root 4 4月 18 17:22 enable-denver-wdt
-r--r--r-- 1 root root 4 4月 18 17:22 enable-pcie-on-uphy-lane0
-r--r--r-- 1 root root 4 4月 18 17:22 enable-pcie-on-uphy-lane4
-r--r--r-- 1 root root 4 4月 18 17:22 enable-sata-on-uphy-lane5
-r--r--r-- 1 root root 4 4月 18 17:22 enable-xusb-on-uphy-lane1
-r--r--r-- 1 root root 4 4月 18 17:22 enable-xusb-on-uphy-lane2
-r--r--r-- 1 root root 9 4月 18 17:22 name
-r--r--r-- 1 root root 4 4月 18 17:22 no-battery
-r--r--r-- 1 root root 4 4月 18 17:22 normal-flashed
ODMDATA = 0x709000
nvidia@tw-tx2:~$ ls -l /sys/firmware/devicetree/base/chosen/plugin-manager/odm-data
total 0
-r--r--r-- 1 root root 4 4月 18 16:39 android-build
-r--r--r-- 1 root root 4 4月 18 16:39 disable-pmic-wdt
-r--r--r-- 1 root root 4 4月 18 16:39 disable-sdmmc-hwcq
-r--r--r-- 1 root root 4 4月 18 16:39 disable-tegra-wdt
-r--r--r-- 1 root root 4 4月 18 16:39 enable-debug-console
-r--r--r-- 1 root root 4 4月 18 16:39 enable-denver-wdt
-r--r--r-- 1 root root 4 4月 18 16:39 enable-pcie-on-uphy-lane4
-r--r--r-- 1 root root 4 4月 18 16:39 enable-sata-on-uphy-lane5
-r--r--r-- 1 root root 4 4月 18 16:39 enable-xusb-on-uphy-lane0
-r--r--r-- 1 root root 4 4月 18 16:39 enable-xusb-on-uphy-lane1
-r--r--r-- 1 root root 4 4月 18 16:39 enable-xusb-on-uphy-lane2
-r--r--r-- 1 root root 9 4月 18 16:39 name
-r--r--r-- 1 root root 4 4月 18 16:39 no-battery
-r--r--r-- 1 root root 4 4月 18 16:39 normal-flashed
三、TX2+A302+JetPack4.2
1、 ODMDATA = 0x709000 + NV DTB --- 仅识别W7 下面的一个USB，但是无法识别PCIE-USB和上面的USB
2、 ODMDATA = 0x709000 + TW DTB --- 可以识别Default USB，但是无法识别PCIE-USB
3、 ODMDATA = 0x609000 + NV DTB --- 可以识别W7 下面的一个USB和PCIE-USB （W8&W9)
3、 ODMDATA = 0x609000 + TW DTB --- 可以识别W7 两个USB和PCIE-USB （W8&W9)
验证一、(2019/04/19 14:00)
ODM-DATA = 0x709000
> pcie-controller@10003000 {
> pci@1,0 {
> nvidia,num-lanes = <4>;
> nvidia,disable-clock-request;
> };
> pci@2,0 {
> nvidia,num-lanes = <0>;
> };
> pci@3,0 {
> nvidia,num-lanes = <1>;
> };
> };
nvidia@tw-tx2:~$ xxd /proc/device-tree/xhci@3530000/phy-names
00000000: 7573 6232 2d30 0075 7362 322d 3100 7573 usb2-0.usb2-1.us
00000010: 6232 2d32 0075 7362 332d 3000 b2-2.usb3-0.
nvidia@tw-tx2:~$ xxd /proc/device-tree/pinctrl@3520000/pinmux/
e3325-usb3-std-A-HS/ e3325-usb3-std-A-SS/ linux,phandle
name phandle usb2-micro-AB/ usb2-std-A-port2/ usb3-std-A-port2/
U盘插入W7 上侧口 （插入U盘后开机状态），lsusb --- USB2.0
nvidia@tw-tx2:~$ lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/3p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/4p, 480M
|__ Port 3: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 480M
U盘拔出W7 上侧口，再插入W7 下侧USB口，lsusb --- USB3.0
nvidia@tw-tx2:~$ lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/3p, 5000M
|__ Port 1: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/4p, 480M
关机再开机（U盘默认插入W7 下侧USB口）后，lsusb --- USB2.0
nvidia@tw-tx2:~$ lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/3p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/4p, 480M
|__ Port 2: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 480M
nvidia@tw-tx2:~$
U盘拔出W7下侧口，再插入W7 上侧USB口后，lsusb --- USB2.0
nvidia@tw-tx2:~$ lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/3p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/4p, 480M
|__ Port 3: Dev 3, If 0, Class=Mass Storage, Driver=usb-storage, 480M
nvidia@tw-tx2:~$
U盘拔出W7上侧口，再插入W7下侧USB口后，lsusb --- 变为USB3.0
nvidia@tw-tx2:~$ lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/3p, 5000M
|__ Port 1: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/4p, 480M
------------------------------------------------------------------------------------------------
验证二、(2019/04/19 14:00)
ODM-DATA = 0x709000
去除plugin 无USB控制器 可识别
nvidia@tw-tx2:~$ xxd /proc/device-tree/xhci@3530000/phy-names
00000000: 7574 6d69 2d30 0075 746d 692d 3100 7574 utmi-0.utmi-1.ut
00000010: 6d69 2d32 0075 7362 332d 3000 7573 6233 mi-2.usb3-0.usb3
00000020: 2d31 0075 7362 332d 3200 -1.usb3-2.
nvidia@tw-tx2:~$ ls /proc/device-tree/pinctrl@3520000/pinmux/
linux,phandle name phandle usb2-1 usb2-2 usb2-micro-AB usb3-a usb3-b usb3-c
上述三个USB2和三个USB3/status 均为okay
实验一和二 总结如下：
Kernel4.9 版本DTS已弃用4.4版本的tegra_xusb_padctl内容定义方式改为了新版本具体参考如下：
#if TEGRA_XUSB_PADCONTROL_VERSION >= DT_VERSION_2
xhci@3530000 {
status = "okay";
phys = <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-0}>,
<&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-1}>,
<&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-2}>,
<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-0}>;
phy-names = "usb2-0", "usb2-1", "usb2-2", "usb3-0";
};
#else
xhci@3530000 {
status = "okay";
phys = <&tegra_xusb_padctl TEGRA_PADCTL_PHY_UTMI_P(0)>,
<&tegra_xusb_padctl TEGRA_PADCTL_PHY_UTMI_P(1)>,
<&tegra_xusb_padctl TEGRA_PADCTL_PHY_UTMI_P(2)>,
<&tegra_xusb_padctl TEGRA_PADCTL_PHY_USB3_P(0)>,
<&tegra_xusb_padctl TEGRA_PADCTL_PHY_USB3_P(1)>,
<&tegra_xusb_padctl TEGRA_PADCTL_PHY_USB3_P(2)>;
phy-names = "utmi-0", "utmi-1","utmi-2", "usb3-0", "usb3-1", "usb3-2";
/*
phys = <&tegra_xusb_padctl TEGRA_PADCTL_PHY_UTMI_P(0)>,
<&tegra_xusb_padctl TEGRA_PADCTL_PHY_UTMI_P(1)>,
<&tegra_xusb_padctl TEGRA_PADCTL_PHY_UTMI_P(2)>,
<&tegra_xusb_padctl TEGRA_PADCTL_PHY_USB3_P(1)>;
phy-names = "utmi-0", "utmi-1", "utmi-2", "usb3-1";
*/
nvidia,boost_cpu_freq = <800>;
};
#endif
验证三、(2019/04/20 12:00 已解决全部问题，可发布)
ODM-DATA = 0x609000
1. NV 默认DTS 可识别PCIe-USB + USB W7下侧USB2.0，上侧不识别且无USB3.0
nvidia@tw-tx2:~$ dmesg | grep "2019"
[ 0.000000] Linux version 4.9.140-tegra (dennis@dennisJiang) (gcc version 6.4.1 20170707 (Linaro GCC 6.4-2017.08) ) #3 SMP PREEMPT Sat Apr 13 17:54:43 CST 2019
[ 0.184019] DTB Build time: Apr 19 2019 16:36:29
[ 0.437377] DTB Build time: Apr 19 2019 16:36:29
[ 5.039749] tegra_rtc c2a0000.rtc: setting system clock to 2019-04-19 08:38:12 UTC (1555663092)
[ 12.062019] wl_android_wifi_on in
nvidia@tw-tx2:~$ ls -l /sys/firmware/devicetree/base/chosen/plugin-manager/odm-data
-r--r--r-- 1 root root 4 4月 19 16:41 enable-pcie-on-uphy-lane0
-r--r--r-- 1 root root 4 4月 19 16:41 enable-pcie-on-uphy-lane4
-r--r--r-- 1 root root 4 4月 19 16:41 enable-sata-on-uphy-lane5
-r--r--r-- 1 root root 4 4月 19 16:41 enable-xusb-on-uphy-lane1
-r--r--r-- 1 root root 4 4月 19 16:41 enable-xusb-on-uphy-lane2
nvidia@tw-tx2:~$ xxd /proc/device-tree/xhci@3530000/phy-names
00000000: 7573 6232 2d30 0075 7362 322d 3100 usb2-0.usb2-1.
nvidia@tw-tx2:~$ ls /proc/device-tree/pinctrl@3520000/pinmux/
e3325-usb3-std-A-HS e3325-usb3-std-A-SS linux,phandle name phandle usb2-micro-AB usb2-std-A-port2 usb3-std-A-port2
2. 修改DTS后可识别PCIe-USB + USB W7 双USB2.0+ 单USB3.0
nvidia@tw-tx2:~$
nvidia@tw-tx2:~$ ls -l /sys/firmware/devicetree/base/chosen/plugin-manager/odm-data
total 0
-r--r--r-- 1 root root 4 4月 20 14:43 enable-pcie-on-uphy-lane0
-r--r--r-- 1 root root 4 4月 20 14:43 enable-pcie-on-uphy-lane4
-r--r--r-- 1 root root 4 4月 20 14:43 enable-sata-on-uphy-lane5
-r--r--r-- 1 root root 4 4月 20 14:43 enable-xusb-on-uphy-lane1
-r--r--r-- 1 root root 4 4月 20 14:43 enable-xusb-on-uphy-lane2
nvidia@tw-tx2:~$ xxd /proc/device-tree/xhci@3530000/phy-names
00000000: 7573 6232 2d30 0075 7362 322d 3100 7573 usb2-0.usb2-1.us
00000010: 6232 2d32 0075 7362 332d 3000 7573 6233 b2-2.usb3-0.usb3
00000020: 2d31 0075 7362 332d 3200 -1.usb3-2.
nvidia@tw-tx2:~$ ls /proc/device-tree/pinctrl@3520000/pinmux/
linux,phandle name phandle usb2-a usb2-b usb2-micro-AB usb3-a usb3-b usb3-c
修改 tegra186-quill-p3310-1000-c03-00-base.dts 删除掉如下内容padctl旧版本
xhci@3530000 {
status = "okay";
phys = <&tegra_xusb_padctl TEGRA_PADCTL_PHY_UTMI_P(0)>,
<&tegra_xusb_padctl TEGRA_PADCTL_PHY_UTMI_P(1)>,
<&tegra_xusb_padctl TEGRA_PADCTL_PHY_UTMI_P(2)>;
phy-names = "utmi-0", "utmi-1","utmi-2";
};
A300(007) USB Debug
如下W7(上下仅识别为USB2.0)
#if TEGRA_XUSB_PADCONTROL_VERSION >= DT_VERSION_2
xusb_padctl@3520000 {
status = "okay";
pinctrl-0 = <&vbus_en0_default_state>;
pinctrl-1 = <&vbus_en1_default_state>;
pinctrl-2 = <&vbus_en0_sfio_tristate_state>;
pinctrl-3 = <&vbus_en1_sfio_tristate_state>;
pinctrl-4 = <&vbus_en0_sfio_passthrough_state>;
pinctrl-5 = <&vbus_en1_sfio_passthrough_state>;
pinctrl-names = "vbus_en0_default", "vbus_en1_default",
"vbus_en0_sfio_tristate", "vbus_en1_sfio_tristate",
"vbus_en0_sfio_passthrough", "vbus_en1_sfio_passthrough";
pads {
usb2 {
lanes {
usb2-0 {
nvidia,function = "xusb";
status = "okay";
};
usb2-1 {
nvidia,function = "xusb";
status = "okay";
};
usb2-2 {
nvidia,function = "xusb";
status = "okay";
};
};
};
usb3 {
lanes {
usb3-0 {
nvidia,function = "xusb";
status = "okay";
};
usb3-1 {
nvidia,function = "xusb";
status = "okay";
};
usb3-2 {
nvidia,function = "xusb";
status = "okay";
};
};
};
};
ports {
usb2-0 {
status = "okay";
mode = "otg";
vbus-supply = <&vdd_usb0_5v>;
};
usb2-1 {
status = "okay";
mode = "host";
vbus-supply = <&vdd_usb1_5v>;
};
usb2-2 {
status = "okay";
mode = "host";
vbus-supply = <&battery_reg>;
};
usb3-0 {
nvidia,usb2-companion = <0>;
status = "okay";
};
usb3-1 {
nvidia,usb2-companion = <1>;
status = "okay";
};
usb3-2 {
nvidia,usb2-companion = <2>;
status = "okay";
};
};
};
#endif
pinctrl@3520000 {
status = "okay";
pinctrl-0 = <&tegra_xusb_padctl_pinmux_default>;
pinctrl-1 = <&vbus_en0_sfio_tristate_state>;
pinctrl-2 = <&vbus_en1_sfio_tristate_state>;
pinctrl-3 = <&vbus_en0_sfio_passthrough_state>;
pinctrl-4 = <&vbus_en1_sfio_passthrough_state>;
pinctrl-5 = <&vbus_en0_default_state>;
pinctrl-6 = <&vbus_en1_default_state>;
pinctrl-names = "default",
"vbus_en0_sfio_tristate", "vbus_en1_sfio_tristate",
"vbus_en0_sfio_passthrough", "vbus_en1_sfio_passthrough",
"vbus_en0_default", "vbus_en1_default";
tegra_xusb_padctl_pinmux_default: pinmux {
/* Quill does not support usb3-micro AB */
usb2-micro-AB {
nvidia,lanes = "otg-0";
nvidia,function = "xusb";
nvidia,port-cap = <TEGRA_PADCTL_PORT_OTG_CAP>;
nvidia,oc-pin = <0>;
};
usb2-a {
nvidia,lanes = "otg-1";
nvidia,function = "xusb";
nvidia,port-cap = <TEGRA_PADCTL_PORT_HOST_ONLY>;
nvidia,oc-pin = <1>;
status = "okay";
};
usb2-b {
nvidia,lanes = "otg-2";
nvidia,function = "xusb";
nvidia,port-cap = <TEGRA_PADCTL_PORT_HOST_ONLY>;
status = "okay";
};
usb3-a {
nvidia,lanes = "usb3-0";
nvidia,function = "xusb";
nvidia,port-cap = <TEGRA_PADCTL_PORT_HOST_ONLY>;
status = "okay";
};
usb3-b {
nvidia,lanes = "usb3-1";
nvidia,function = "xusb";
nvidia,port-cap = <TEGRA_PADCTL_PORT_HOST_ONLY>;
status = "okay";
};
usb3-c {
nvidia,lanes = "usb3-2";
nvidia,function = "xusb";
nvidia,port-cap = <TEGRA_PADCTL_PORT_HOST_ONLY>;
status = "okay";
};
};
};
如下仅W7 上侧USB一直为USB2.0
usb3-0 {
nvidia,usb2-companion = <1>;
status = "okay";
};
usb3-1 {
nvidia,usb2-companion = <2>;
status = "okay";
};
usb3-2 {
nvidia,usb2-companion = <0>;
status = "okay";
};
如下仅W7 上下侧USB均为USB3.0
usb3-0 {
nvidia,usb2-companion = <1>;
status = "okay";
};
usb3-1 {
nvidia,usb2-companion = <0>;
status = "okay";
};
usb3-2 {
nvidia,usb2-companion = <2>;
status = "okay";
};
或
usb3-0 {
nvidia,usb2-companion = <0>;
status = "okay";
};
usb3-1 {
nvidia,usb2-companion = <1>;
status = "okay";
};
usb3-2 {
nvidia,usb2-companion = <2>;
status = "okay";
};
源码路径：
/home/dennis/sda/home/dennis/git/jetpack_4.2_linux_p3310/Linux_for_Tegra/sources/kernel/kernel-4.9
下载路径：
/home/dennis/nvidia/nvidia_sdk/JetPack_4.2_Linux_P3310/Linux_for_Tegra
cp /home/dennis/sda/home/dennis/git/jetpack_4.2_linux_p3310/Linux_for_Tegra/out/kernel_out/arch/arm64/boot/dts/tegra186-quill-p3310-1000-c03-00-base.dtb kernel/dtb/
