c4b6a77663
Supported SMC1 (serial console), SCC1 Ethernet (10Mbps HD). FEC Ethernet, 8MB NOR CFI Flash. Tested on STK8xx with TQM860L (with FEC) and with TQM855M (without FEC). Signed-off-by: Heiko Schocher <hs@denx.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
156 lines
3.7 KiB
C
156 lines
3.7 KiB
C
/*
|
|
* Platform setup for the MPC8xx based boards from TQM.
|
|
*
|
|
* Heiko Schocher <hs@denx.de>
|
|
* Copyright 2010 DENX Software Engineering GmbH
|
|
*
|
|
* based on:
|
|
* Vitaly Bordug <vbordug@ru.mvista.com>
|
|
*
|
|
* Copyright 2005 MontaVista Software Inc.
|
|
*
|
|
* Heavily modified by Scott Wood <scottwood@freescale.com>
|
|
* Copyright 2007 Freescale Semiconductor, Inc.
|
|
*
|
|
* 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/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/param.h>
|
|
#include <linux/string.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/device.h>
|
|
#include <linux/delay.h>
|
|
|
|
#include <linux/fs_enet_pd.h>
|
|
#include <linux/fs_uart_pd.h>
|
|
#include <linux/fsl_devices.h>
|
|
#include <linux/mii.h>
|
|
#include <linux/of_platform.h>
|
|
|
|
#include <asm/delay.h>
|
|
#include <asm/io.h>
|
|
#include <asm/machdep.h>
|
|
#include <asm/page.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/system.h>
|
|
#include <asm/time.h>
|
|
#include <asm/mpc8xx.h>
|
|
#include <asm/8xx_immap.h>
|
|
#include <asm/cpm1.h>
|
|
#include <asm/fs_pd.h>
|
|
#include <asm/udbg.h>
|
|
|
|
#include "mpc8xx.h"
|
|
|
|
struct cpm_pin {
|
|
int port, pin, flags;
|
|
};
|
|
|
|
static struct __initdata cpm_pin tqm8xx_pins[] = {
|
|
/* SMC1 */
|
|
{CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */
|
|
{CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
|
|
|
|
/* SCC1 */
|
|
{CPM_PORTA, 5, CPM_PIN_INPUT}, /* CLK1 */
|
|
{CPM_PORTA, 7, CPM_PIN_INPUT}, /* CLK2 */
|
|
{CPM_PORTA, 14, CPM_PIN_INPUT}, /* TX */
|
|
{CPM_PORTA, 15, CPM_PIN_INPUT}, /* RX */
|
|
{CPM_PORTC, 15, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TENA */
|
|
{CPM_PORTC, 10, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO},
|
|
{CPM_PORTC, 11, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO},
|
|
};
|
|
|
|
static struct __initdata cpm_pin tqm8xx_fec_pins[] = {
|
|
/* MII */
|
|
{CPM_PORTD, 3, CPM_PIN_OUTPUT},
|
|
{CPM_PORTD, 4, CPM_PIN_OUTPUT},
|
|
{CPM_PORTD, 5, CPM_PIN_OUTPUT},
|
|
{CPM_PORTD, 6, CPM_PIN_OUTPUT},
|
|
{CPM_PORTD, 7, CPM_PIN_OUTPUT},
|
|
{CPM_PORTD, 8, CPM_PIN_OUTPUT},
|
|
{CPM_PORTD, 9, CPM_PIN_OUTPUT},
|
|
{CPM_PORTD, 10, CPM_PIN_OUTPUT},
|
|
{CPM_PORTD, 11, CPM_PIN_OUTPUT},
|
|
{CPM_PORTD, 12, CPM_PIN_OUTPUT},
|
|
{CPM_PORTD, 13, CPM_PIN_OUTPUT},
|
|
{CPM_PORTD, 14, CPM_PIN_OUTPUT},
|
|
{CPM_PORTD, 15, CPM_PIN_OUTPUT},
|
|
};
|
|
|
|
static void __init init_pins(int n, struct cpm_pin *pin)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
cpm1_set_pin(pin->port, pin->pin, pin->flags);
|
|
pin++;
|
|
}
|
|
}
|
|
|
|
static void __init init_ioports(void)
|
|
{
|
|
struct device_node *dnode;
|
|
struct property *prop;
|
|
int len;
|
|
|
|
init_pins(ARRAY_SIZE(tqm8xx_pins), &tqm8xx_pins[0]);
|
|
|
|
cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX);
|
|
|
|
dnode = of_find_node_by_name(NULL, "aliases");
|
|
if (dnode == NULL)
|
|
return;
|
|
prop = of_find_property(dnode, "ethernet1", &len);
|
|
if (prop == NULL)
|
|
return;
|
|
|
|
/* init FEC pins */
|
|
init_pins(ARRAY_SIZE(tqm8xx_fec_pins), &tqm8xx_fec_pins[0]);
|
|
}
|
|
|
|
static void __init tqm8xx_setup_arch(void)
|
|
{
|
|
cpm_reset();
|
|
init_ioports();
|
|
}
|
|
|
|
static int __init tqm8xx_probe(void)
|
|
{
|
|
unsigned long node = of_get_flat_dt_root();
|
|
|
|
return of_flat_dt_is_compatible(node, "tqc,tqm8xx");
|
|
}
|
|
|
|
static struct of_device_id __initdata of_bus_ids[] = {
|
|
{ .name = "soc", },
|
|
{ .name = "cpm", },
|
|
{ .name = "localbus", },
|
|
{ .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(tqm8xx, declare_of_platform_devices);
|
|
|
|
define_machine(tqm8xx) {
|
|
.name = "TQM8xx",
|
|
.probe = tqm8xx_probe,
|
|
.setup_arch = tqm8xx_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,
|
|
.progress = udbg_progress,
|
|
};
|