Eric Lee / smarc-uboot

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Commit 68f7c5db2d1e714c15b49b0759ddef8f8344f184

Authored by Paul Kocialkowski
Committed by Marek Vasut
1 parent 9ad437447d
Exists in v2017.01-smarct4x and in 33 other branches 8qm-imx_v2020.04_5.4.70_2.3.0, emb_lf-6.6.52-2.2.0, emb_lf_v2022.04, emb_lf_v2023.04, emb_lf_v2024.04, pitx_8mp_lf_v2020.04, smarc-8m-android-10.0.0_2.6.0, smarc-8m-android-11.0.0_2.0.0, smarc-8mp-android-11.0.0_2.0.0, smarc-imx6_v2018.03_4.14.98_2.0.0_ga, smarc-imx7_v2017.03_4.9.11_1.0.0_ga, smarc-imx7_v2018.03_4.14.98_2.0.0_ga, smarc-imx_v2017.03_4.9.11_1.0.0_ga, smarc-imx_v2017.03_4.9.88_2.0.0_ga, smarc-imx_v2017.03_o8.1.0_1.3.0_8m, smarc-imx_v2018.03_4.14.78_1.0.0_ga, smarc-n7.1.2_2.0.0-ga, smarc-rel_imx_4.1.15_2.0.0_ga, smarc_8m-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8m-imx_v2019.04_4.19.35_1.1.0, smarc_8m_00d0-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8mm-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8mm-imx_v2019.04_4.19.35_1.1.0, smarc_8mm-imx_v2020.04_5.4.24_2.1.0, smarc_8mp_lf_v2020.04, smarc_8mq-imx_v2020.04_5.4.24_2.1.0, smarc_8mq_lf_v2020.04, v2016.05-dlt, v2016.05-smarct3x, v2016.05-smarct3x-emmc, v2016.05-smarct4x, v2017.01-smarct3x, v2017.01-smarct3x-emmc

usb: Generic USB Kconfig option, that fits both host and gadget and comments 

There is no particular reason why the USB Kconfig option should be specific to
host mode. In prevision of adding MUSB host and gadget to Kconfig, this moves
the title and help message of the USB Kconfig option to a more generic format.

Adding comments to the usb Kconfig allows for a better separation and more
readability in generated configs and in menuconfig.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>

Showing 1 changed file with 8 additions and 7 deletions Inline Diff

1 menu USB 1 menuconfig USB
2 2 bool "USB support"
3 config USB
4 bool "Support for Host-side USB"
5 ---help--- 3 ---help---
6 Universal Serial Bus (USB) is a specification for a serial bus 4 Universal Serial Bus (USB) is a specification for a serial bus
7 subsystem which offers higher speeds and more features than the 5 subsystem which offers higher speeds and more features than the
8 traditional PC serial port. The bus supplies power to peripherals 6 traditional PC serial port. The bus supplies power to peripherals
9 and allows for hot swapping. Up to 127 USB peripherals can be 7 and allows for hot swapping. Up to 127 USB peripherals can be
10 connected to a single USB host in a tree structure. 8 connected to a single USB host in a tree structure.
11 9
12 The USB host is the root of the tree, the peripherals are the 10 The USB host is the root of the tree, the peripherals are the
13 leaves and the inner nodes are special USB devices called hubs. 11 leaves and the inner nodes are special USB devices called hubs.
14 Most PCs now have USB host ports, used to connect peripherals 12 Most PCs now have USB host ports, used to connect peripherals
15 such as scanners, keyboards, mice, modems, cameras, disks, 13 such as scanners, keyboards, mice, modems, cameras, disks,
16 flash memory, network links, and printers to the PC. 14 flash memory, network links, and printers to the PC.
17 15
18 Say Y here if your computer has a host-side USB port and you want 16 Say Y here if your device has an USB port, either host, peripheral or
19 to use USB devices. You then need to say Y to at least one of the 17 dual-role.
18
19 For an USB host port, you then need to say Y to at least one of the
20 Host Controller Driver (HCD) options below. Choose a USB 1.1 20 Host Controller Driver (HCD) options below. Choose a USB 1.1
21 controller, such as "UHCI HCD support" or "OHCI HCD support", 21 controller, such as "UHCI HCD support" or "OHCI HCD support",
22 and "EHCI HCD (USB 2.0) support" except for older systems that 22 and "EHCI HCD (USB 2.0) support" except for older systems that
23 do not have USB 2.0 support. It doesn't normally hurt to select 23 do not have USB 2.0 support. It doesn't normally hurt to select
24 them all if you are not certain. 24 them all if you are not certain.
25 25
26 If your system has a device-side USB port, used in the peripheral 26 If your system has a device-side USB port, used in the peripheral
27 side of the USB protocol, see the "USB Gadget" framework instead. 27 side of the USB protocol, see the "USB Gadget" framework instead.
28 28
29 After choosing your HCD, then select drivers for the USB peripherals 29 After choosing your HCD, then select drivers for the USB peripherals
30 you'll be using. You may want to check out the information provided 30 you'll be using. You may want to check out the information provided
31 in <file:Documentation/usb/> and especially the links given in 31 in <file:Documentation/usb/> and especially the links given in
32 <file:Documentation/usb/usb-help.txt>. 32 <file:Documentation/usb/usb-help.txt>.
33 33
34 if USB 34 if USB
35 35
36 config DM_USB 36 config DM_USB
37 bool "Enable driver model for USB" 37 bool "Enable driver model for USB"
38 depends on USB && DM 38 depends on USB && DM
39 help 39 help
40 Enable driver model for USB. The USB interface is then implemented 40 Enable driver model for USB. The USB interface is then implemented
41 by the USB uclass. Multiple USB controllers of different types 41 by the USB uclass. Multiple USB controllers of different types
42 (XHCI, EHCI) can be attached and used. The 'usb' command works as 42 (XHCI, EHCI) can be attached and used. The 'usb' command works as
43 normal. OCHI is not supported at present. 43 normal. OCHI is not supported at present.
44 44
45 Much of the code is shared but with this option enabled the USB 45 Much of the code is shared but with this option enabled the USB
46 uclass takes care of device enumeration. USB devices can be 46 uclass takes care of device enumeration. USB devices can be
47 declared with the U_BOOT_USB_DEVICE() macro and will be 47 declared with the U_BOOT_USB_DEVICE() macro and will be
48 automatically probed when found on the bus. 48 automatically probed when found on the bus.
49 49
50 source "drivers/usb/host/Kconfig" 50 source "drivers/usb/host/Kconfig"
51 51
52 source "drivers/usb/emul/Kconfig" 52 source "drivers/usb/emul/Kconfig"
53 53
54 comment "USB peripherals"
55
54 config USB_STORAGE 56 config USB_STORAGE
55 bool "USB Mass Storage support" 57 bool "USB Mass Storage support"
56 ---help--- 58 ---help---
57 Say Y here if you want to connect USB mass storage devices to your 59 Say Y here if you want to connect USB mass storage devices to your
58 board's USB port. 60 board's USB port.
59 61
60 config USB_KEYBOARD 62 config USB_KEYBOARD
61 bool "USB Keyboard support" 63 bool "USB Keyboard support"
62 ---help--- 64 ---help---
63 Say Y here if you want to use a USB keyboard for U-Boot command line 65 Say Y here if you want to use a USB keyboard for U-Boot command line
64 input. 66 input.
65 67
66 if USB_KEYBOARD 68 if USB_KEYBOARD
67 69
68 choice 70 choice
69 prompt "USB keyboard polling" 71 prompt "USB keyboard polling"
70 optional 72 optional
71 ---help--- 73 ---help---
72 Enable a polling mechanism for USB keyboard. 74 Enable a polling mechanism for USB keyboard.
73 75
74 config SYS_USB_EVENT_POLL 76 config SYS_USB_EVENT_POLL
75 bool "Interrupt polling" 77 bool "Interrupt polling"
76 78
77 config SYS_USB_EVENT_POLL_VIA_INT_QUEUE 79 config SYS_USB_EVENT_POLL_VIA_INT_QUEUE
78 bool "Poll via interrupt queue" 80 bool "Poll via interrupt queue"
79 81
80 config SYS_USB_EVENT_POLL_VIA_CONTROL_EP 82 config SYS_USB_EVENT_POLL_VIA_CONTROL_EP
81 bool "Poll via control EP" 83 bool "Poll via control EP"
82 84
83 endchoice 85 endchoice
84 86
85 endif 87 endif
86 88