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/*
*
* Platform setup for the Keymile mgsuvd board
*
* Heiko Schocher <hs@denx.de>
*
* Copyright 2008 DENX Software Engineering GmbH
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include <linux/ioport.h>
#include <linux/of_platform.h>
#include <asm/io.h>
#include <asm/machdep.h>
#include <asm/processor.h>
#include <asm/cpm1.h>
#include <asm/prom.h>
#include <asm/fs_pd.h>
#include "mpc8xx.h"
struct cpm_pin {
int port, pin, flags;
};
static __initdata struct cpm_pin mgsuvd_pins[] = {
/* SMC1 */
{CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */
{CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
/* SCC3 */
{CPM_PORTA, 10, CPM_PIN_INPUT},
{CPM_PORTA, 11, CPM_PIN_INPUT},
{CPM_PORTA, 3, CPM_PIN_INPUT},
{CPM_PORTA, 2, CPM_PIN_INPUT},
{CPM_PORTC, 13, CPM_PIN_INPUT},
};
static void __init init_ioports(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(mgsuvd_pins); i++) {
struct cpm_pin *pin = &mgsuvd_pins[i];
cpm1_set_pin(pin->port, pin->pin, pin->flags);
}
setbits16(&mpc8xx_immr->im_ioport.iop_pcso, 0x300);
cpm1_clk_setup(CPM_CLK_SCC3, CPM_CLK5, CPM_CLK_RX);
cpm1_clk_setup(CPM_CLK_SCC3, CPM_CLK6, CPM_CLK_TX);
cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX);
}
static void __init mgsuvd_setup_arch(void)
{
cpm_reset();
init_ioports();
}
static __initdata struct of_device_id of_bus_ids[] = {
{ .compatible = "simple-bus" },
{},
};
static int __init declare_of_platform_devices(void)
{
of_platform_bus_probe(NULL, of_bus_ids, NULL);
return 0;
}
machine_device_initcall(mgsuvd, declare_of_platform_devices);
static int __init mgsuvd_probe(void)
{
unsigned long root = of_get_flat_dt_root();
return of_flat_dt_is_compatible(root, "keymile,mgsuvd");
}
define_machine(mgsuvd) {
.name = "MGSUVD",
.probe = mgsuvd_probe,
.setup_arch = mgsuvd_setup_arch,
.init_IRQ = mpc8xx_pics_init,
.get_irq = mpc8xx_get_irq,
.restart = mpc8xx_restart,
.calibrate_decr = mpc8xx_calibrate_decr,
.set_rtc_time = mpc8xx_set_rtc_time,
.get_rtc_time = mpc8xx_get_rtc_time,
};
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