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dm: x86: Convert coreboot serial to use driver model

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This makes use of the existing device tree node to use driver model
for the serial console.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2014-10-10 07:49:20 -06:00
parent d1259c9f5f
commit e98a03ca68
5 changed files with 48 additions and 23 deletions
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4
arch/x86/dts/coreboot.dtsi
View File

@ -1,8 +1,8 @@
/include/ "skeleton.dtsi"
/ {
aliases {
console = "/serial";
chosen {
stdout-path = "/serial";
};
serial {

10
arch/x86/include/asm/ibmpc.h
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@ -18,14 +18,4 @@
#define SYSCTLA 0x92
#define SLAVE_PIC 0xa0
#if 1
#define UART0_BASE 0x3f8
#define UART1_BASE 0x2f8
#else
/* FixMe: uarts swapped */
#define UART0_BASE 0x2f8
#define UART1_BASE 0x3f8
#endif
#endif

1
drivers/serial/Makefile
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@ -42,6 +42,7 @@ obj-$(CONFIG_ARC_SERIAL) += serial_arc.o
obj-$(CONFIG_TEGRA_SERIAL) += serial_tegra.o
obj-$(CONFIG_UNIPHIER_SERIAL) += serial_uniphier.o
obj-$(CONFIG_OMAP_SERIAL) += serial_omap.o
obj-$(CONFIG_COREBOOT_SERIAL) += serial_coreboot.o
ifndef CONFIG_SPL_BUILD
obj-$(CONFIG_USB_TTY) += usbtty.o

38
drivers/serial/serial_coreboot.c Normal file
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@ -0,0 +1,38 @@
/*
* Copyright (c) 2014 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <ns16550.h>
#include <serial.h>
static const struct udevice_id coreboot_serial_ids[] = {
{ .compatible = "coreboot-uart" },
{ }
};
static int coreboot_serial_ofdata_to_platdata(struct udevice *dev)
{
struct ns16550_platdata *plat = dev_get_platdata(dev);
int ret;
ret = ns16550_serial_ofdata_to_platdata(dev);
if (ret)
return ret;
plat->clock = 1843200;
return 0;
}
U_BOOT_DRIVER(serial_ns16550) = {
.name = "serial_coreboot",
.id = UCLASS_SERIAL,
.of_match = coreboot_serial_ids,
.ofdata_to_platdata = coreboot_serial_ofdata_to_platdata,
.platdata_auto_alloc_size = sizeof(struct ns16550_platdata),
.priv_auto_alloc_size = sizeof(struct NS16550),
.probe = ns16550_serial_probe,
.ops = &ns16550_serial_ops,
};

18
include/configs/coreboot.h
View File

@ -30,6 +30,7 @@
#define CONFIG_DM
#define CONFIG_CMD_DM
#define CONFIG_DM_GPIO
#define CONFIG_DM_SERIAL
#define CONFIG_LMB
#define CONFIG_OF_LIBFDT
@ -92,21 +93,16 @@
/*-----------------------------------------------------------------------
* Serial Configuration
*/
#define CONFIG_CONS_INDEX 1
#define CONFIG_COREBOOT_SERIAL
#define CONFIG_SYS_NS16550
#define CONFIG_SYS_NS16550_SERIAL
#define CONFIG_SYS_NS16550_REG_SIZE 1
#define CONFIG_SYS_NS16550_CLK 1843200
#define CONFIG_BAUDRATE 9600
#define CONFIG_BAUDRATE 115200
#define CONFIG_SYS_BAUDRATE_TABLE {300, 600, 1200, 2400, 4800, \
9600, 19200, 38400, 115200}
#define CONFIG_SYS_NS16550_COM1 UART0_BASE
#define CONFIG_SYS_NS16550_COM2 UART1_BASE
#define CONFIG_SYS_NS16550_PORT_MAPPED
#define CONFIG_STD_DEVICES_SETTINGS "stdin=usbkbd,vga,eserial0\0" \
"stdout=vga,eserial0,cbmem\0" \
"stderr=vga,eserial0,cbmem\0"
#define CONFIG_STD_DEVICES_SETTINGS "stdin=usbkbd,vga,serial\0" \
"stdout=vga,serial,cbmem\0" \
"stderr=vga,serial,cbmem\0"
#define CONFIG_CONSOLE_MUX
#define CONFIG_SYS_CONSOLE_IS_IN_ENV
@ -260,7 +256,7 @@
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
#define CONFIG_SYS_MONITOR_LEN (256 * 1024)
#define CONFIG_SYS_MALLOC_LEN (0x20000 + 128 * 1024)
#define CONFIG_SYS_MALLOC_F_LEN (1 << 10)
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE