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x86: efi-x86_payload: Enable usb keyboard during boot

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For boards that don't route serial port pins out, it's quite common
to attach a USB keyboard as the input device, along with a monitor.
However USB is not automatically started in the generic efi payload
codes. This uses a payload specific last_stage_init() to start the
USB bus, so that a USB keyboard can be used on the U-Boot shell.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2018-06-17 05:57:53 -07:00
parent 6d02cf0562
commit 1ab2c01087
3 changed files with 11 additions and 2 deletions
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2
arch/x86/cpu/cpu.c
View File

@ -193,7 +193,7 @@ void show_boot_progress(int val)
outb(val, POST_PORT);
}
#ifndef CONFIG_SYS_COREBOOT
#if !defined(CONFIG_SYS_COREBOOT) && !defined(CONFIG_EFI_STUB)
/*
* Implement a weak default function for boards that optionally
* need to clean up the system before jumping to the kernel.

9
arch/x86/cpu/efi/payload.c
View File

@ -7,6 +7,7 @@
#include <common.h>
#include <efi.h>
#include <errno.h>
#include <usb.h>
#include <asm/post.h>
DECLARE_GLOBAL_DATA_PTR;
@ -160,3 +161,11 @@ int reserve_arch(void)
return 0;
}
int last_stage_init(void)
{
/* start usb so that usb keyboard can be used as input device */
usb_init();
return 0;
}

2
include/configs/efi-x86_payload.h
View File

@ -14,7 +14,7 @@
#define CONFIG_SYS_MONITOR_LEN (1 << 20)
#define CONFIG_STD_DEVICES_SETTINGS "stdin=serial,i8042-kbd\0" \
#define CONFIG_STD_DEVICES_SETTINGS "stdin=serial,i8042-kbd,usbkbd\0" \
"stdout=serial,vidconsole\0" \
"stderr=serial,vidconsole\0"