90ebf50126
Fix sparse warnings: arch/m68k/coldfire/m523x.c:31:19: sparse: sparse: symbol 'm523x_clk_lookup' was not declared. Should it be static? Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wang Jingjin <wangjingjin1@huawei.com> Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/***************************************************************************/
|
|
|
|
/*
|
|
* m523x.c -- platform support for ColdFire 523x based boards
|
|
*
|
|
* Sub-architcture dependent initialization code for the Freescale
|
|
* 523x CPUs.
|
|
*
|
|
* Copyright (C) 1999-2005, Greg Ungerer (gerg@snapgear.com)
|
|
* Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
|
|
*/
|
|
|
|
/***************************************************************************/
|
|
|
|
#include <linux/clkdev.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/param.h>
|
|
#include <linux/init.h>
|
|
#include <linux/io.h>
|
|
#include <asm/machdep.h>
|
|
#include <asm/coldfire.h>
|
|
#include <asm/mcfsim.h>
|
|
#include <asm/mcfclk.h>
|
|
|
|
/***************************************************************************/
|
|
|
|
DEFINE_CLK(pll, "pll.0", MCF_CLK);
|
|
DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
|
|
|
|
static struct clk_lookup m523x_clk_lookup[] = {
|
|
CLKDEV_INIT(NULL, "pll.0", &clk_pll),
|
|
CLKDEV_INIT(NULL, "sys.0", &clk_sys),
|
|
CLKDEV_INIT("mcfpit.0", NULL, &clk_pll),
|
|
CLKDEV_INIT("mcfpit.1", NULL, &clk_pll),
|
|
CLKDEV_INIT("mcfpit.2", NULL, &clk_pll),
|
|
CLKDEV_INIT("mcfpit.3", NULL, &clk_pll),
|
|
CLKDEV_INIT("mcfuart.0", NULL, &clk_sys),
|
|
CLKDEV_INIT("mcfuart.1", NULL, &clk_sys),
|
|
CLKDEV_INIT("mcfuart.2", NULL, &clk_sys),
|
|
CLKDEV_INIT("mcfqspi.0", NULL, &clk_sys),
|
|
CLKDEV_INIT("fec.0", NULL, &clk_sys),
|
|
CLKDEV_INIT("imx1-i2c.0", NULL, &clk_sys),
|
|
};
|
|
|
|
/***************************************************************************/
|
|
|
|
static void __init m523x_qspi_init(void)
|
|
{
|
|
#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
|
|
u16 par;
|
|
|
|
/* setup QSPS pins for QSPI with gpio CS control */
|
|
writeb(0x1f, MCFGPIO_PAR_QSPI);
|
|
/* and CS2 & CS3 as gpio */
|
|
par = readw(MCFGPIO_PAR_TIMER);
|
|
par &= 0x3f3f;
|
|
writew(par, MCFGPIO_PAR_TIMER);
|
|
#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
|
|
}
|
|
|
|
/***************************************************************************/
|
|
|
|
static void __init m523x_i2c_init(void)
|
|
{
|
|
#if IS_ENABLED(CONFIG_I2C_IMX)
|
|
u8 par;
|
|
|
|
/* setup Port AS Pin Assignment Register for I2C */
|
|
/* set PASPA0 to SCL and PASPA1 to SDA */
|
|
par = readb(MCFGPIO_PAR_FECI2C);
|
|
par |= 0x0f;
|
|
writeb(par, MCFGPIO_PAR_FECI2C);
|
|
#endif /* IS_ENABLED(CONFIG_I2C_IMX) */
|
|
}
|
|
|
|
/***************************************************************************/
|
|
|
|
static void __init m523x_fec_init(void)
|
|
{
|
|
/* Set multi-function pins to ethernet use */
|
|
writeb(readb(MCFGPIO_PAR_FECI2C) | 0xf0, MCFGPIO_PAR_FECI2C);
|
|
}
|
|
|
|
/***************************************************************************/
|
|
|
|
void __init config_BSP(char *commandp, int size)
|
|
{
|
|
mach_sched_init = hw_timer_init;
|
|
m523x_fec_init();
|
|
m523x_qspi_init();
|
|
m523x_i2c_init();
|
|
|
|
clkdev_add_table(m523x_clk_lookup, ARRAY_SIZE(m523x_clk_lookup));
|
|
}
|
|
|
|
/***************************************************************************/
|