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// SPDX-License-Identifier: GPL-2.0
/***************************************************************************/
/*
* m5249.c -- platform support for ColdFire 5249 based boards
*
* Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com)
*/
/***************************************************************************/
#include <linux/clkdev.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/platform_device.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);
struct clk_lookup m5249_clk_lookup[] = {
CLKDEV_INIT(NULL, "pll.0", &clk_pll),
CLKDEV_INIT(NULL, "sys.0", &clk_sys),
CLKDEV_INIT("mcftmr.0", NULL, &clk_sys),
CLKDEV_INIT("mcftmr.1", NULL, &clk_sys),
CLKDEV_INIT("mcfuart.0", NULL, &clk_sys),
CLKDEV_INIT("mcfuart.1", NULL, &clk_sys),
CLKDEV_INIT("mcfqspi.0", NULL, &clk_sys),
CLKDEV_INIT("imx1-i2c.0", NULL, &clk_sys),
CLKDEV_INIT("imx1-i2c.1", NULL, &clk_sys),
};
/***************************************************************************/
#ifdef CONFIG_M5249C3
static struct resource m5249_smc91x_resources[] = {
{
.start = 0xe0000300,
.end = 0xe0000300 + 0x100,
.flags = IORESOURCE_MEM,
},
{
.start = MCF_IRQ_GPIO6,
.end = MCF_IRQ_GPIO6,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device m5249_smc91x = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(m5249_smc91x_resources),
.resource = m5249_smc91x_resources,
};
#endif /* CONFIG_M5249C3 */
static struct platform_device *m5249_devices[] __initdata = {
#ifdef CONFIG_M5249C3
&m5249_smc91x,
#endif
};
/***************************************************************************/
static void __init m5249_qspi_init(void)
{
#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
/* QSPI irq setup */
writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL4 | MCFSIM_ICR_PRI0,
MCFSIM_QSPIICR);
mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI);
#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
}
/***************************************************************************/
static void __init m5249_i2c_init(void)
{
#if IS_ENABLED(CONFIG_I2C_IMX)
u32 r;
/* first I2C controller uses regular irq setup */
writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0,
MCFSIM_I2CICR);
mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C);
/* second I2C controller is completely different */
r = readl(MCFINTC2_INTPRI_REG(MCF_IRQ_I2C1));
r &= ~MCFINTC2_INTPRI_BITS(0xf, MCF_IRQ_I2C1);
r |= MCFINTC2_INTPRI_BITS(0x5, MCF_IRQ_I2C1);
writel(r, MCFINTC2_INTPRI_REG(MCF_IRQ_I2C1));
#endif /* CONFIG_I2C_IMX */
}
/***************************************************************************/
#ifdef CONFIG_M5249C3
static void __init m5249_smc91x_init(void)
{
u32 gpio;
/* Set the GPIO line as interrupt source for smc91x device */
gpio = readl(MCFSIM2_GPIOINTENABLE);
writel(gpio | 0x40, MCFSIM2_GPIOINTENABLE);
gpio = readl(MCFINTC2_INTPRI5);
writel(gpio | 0x04000000, MCFINTC2_INTPRI5);
}
#endif /* CONFIG_M5249C3 */
/***************************************************************************/
void __init config_BSP(char *commandp, int size)
{
mach_sched_init = hw_timer_init;
#ifdef CONFIG_M5249C3
m5249_smc91x_init();
#endif
m5249_qspi_init();
m5249_i2c_init();
clkdev_add_table(m5249_clk_lookup, ARRAY_SIZE(m5249_clk_lookup));
}
/***************************************************************************/
static int __init init_BSP(void)
{
platform_add_devices(m5249_devices, ARRAY_SIZE(m5249_devices));
return 0;
}
arch_initcall(init_BSP);
/***************************************************************************/
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