mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 19:10:13 +00:00
e35b6497f4
It is possible to boot U-Boot for chromebook_coral either 'bare metal' or from coreboot. In the latter case we want to provide access to the coreboot sysinfo tables. Move the definitions into a file available to any x86 board. Signed-off-by: Simon Glass <sjg@chromium.org>
55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <console.h>
|
|
#ifndef CONFIG_SYS_COREBOOT
|
|
#error This driver requires coreboot
|
|
#endif
|
|
|
|
#include <asm/cb_sysinfo.h>
|
|
|
|
struct cbmem_console {
|
|
u32 buffer_size;
|
|
u32 buffer_cursor;
|
|
u8 buffer_body[0];
|
|
} __attribute__ ((__packed__));
|
|
|
|
static struct cbmem_console *cbmem_console_p;
|
|
|
|
void cbmemc_putc(struct stdio_dev *dev, char data)
|
|
{
|
|
int cursor;
|
|
|
|
cursor = cbmem_console_p->buffer_cursor++;
|
|
if (cursor < cbmem_console_p->buffer_size)
|
|
cbmem_console_p->buffer_body[cursor] = data;
|
|
}
|
|
|
|
void cbmemc_puts(struct stdio_dev *dev, const char *str)
|
|
{
|
|
char c;
|
|
|
|
while ((c = *str++) != 0)
|
|
cbmemc_putc(dev, c);
|
|
}
|
|
|
|
int cbmemc_init(void)
|
|
{
|
|
int rc;
|
|
struct stdio_dev cons_dev;
|
|
cbmem_console_p = lib_sysinfo.cbmem_cons;
|
|
|
|
memset(&cons_dev, 0, sizeof(cons_dev));
|
|
|
|
strcpy(cons_dev.name, "cbmem");
|
|
cons_dev.flags = DEV_FLAGS_OUTPUT; /* Output only */
|
|
cons_dev.putc = cbmemc_putc;
|
|
cons_dev.puts = cbmemc_puts;
|
|
|
|
rc = stdio_register(&cons_dev);
|
|
|
|
return (rc == 0) ? 1 : rc;
|
|
}
|