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/*
* Copyright (C) 2011-2012 Freescale Semiconductor, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <linux/module.h>
#include <mach/clock.h>
#include <mach/hardware.h>
unsigned int __mxc_cpu_type;
EXPORT_SYMBOL(__mxc_cpu_type);
extern int mxc_early_serial_console_init(unsigned long base, struct clk *clk);
void (*set_num_cpu_op)(int num);
void mxc_set_cpu_type(unsigned int type)
{
__mxc_cpu_type = type;
}
void imx_print_silicon_rev(const char *cpu, int srev)
{
if (srev == IMX_CHIP_REVISION_UNKNOWN)
pr_info("CPU identified as %s, unknown revision\n", cpu);
else
pr_info("CPU identified as %s, silicon rev %d.%d\n",
cpu, (srev >> 4) & 0xf, srev & 0xf);
}
int mxc_jtag_enabled; /* OFF: 0 (default), ON: 1 */
int uart_at_24; /* OFF: 0 (default); ON: 1 */
/*
* Here are the JTAG options from the command line. By default JTAG
* is OFF which means JTAG is not connected and WFI is enabled
*
* "on" -- JTAG is connected, so WFI is disabled
* "off" -- JTAG is disconnected, so WFI is enabled
*/
static int __init jtag_wfi_setup(char *p)
{
if (memcmp(p, "on", 2) == 0) {
mxc_jtag_enabled = 1;
p += 2;
} else if (memcmp(p, "off", 3) == 0) {
mxc_jtag_enabled = 0;
p += 3;
}
return 0;
}
early_param("jtag", jtag_wfi_setup);
static int __init setup_debug_uart(char *p)
{
uart_at_24 = 1;
return 0;
}
early_param("debug_uart", setup_debug_uart);
/**
* early_console_setup - setup debugging console
*
* Consoles started here require little enough setup that we can start using
* them very early in the boot process, either right after the machine
* vector initialization, or even before if the drivers can detect their hw.
*
* Returns non-zero if a console couldn't be setup.
* This function is developed based on
* early_console_setup function as defined in arch/ia64/kernel/setup.c
*/
void __init early_console_setup(unsigned long base, struct clk *clk)
{
#ifdef CONFIG_SERIAL_IMX_CONSOLE
mxc_early_serial_console_init(base, clk);
#endif
}
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