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/arch/powerpc/platforms/8xx/adder875.c

http://github.com/mirrors/linux
C | 112 lines | 85 code | 16 blank | 11 comment | 1 complexity | a9e272533b5920e1f42d8b3c7c86a8e4 MD5 | raw file
  1// SPDX-License-Identifier: GPL-2.0-only
  2/* Analogue & Micro Adder MPC875 board support
  3 *
  4 * Author: Scott Wood <scottwood@freescale.com>
  5 *
  6 * Copyright (c) 2007 Freescale Semiconductor, Inc.
  7 */
  8
  9#include <linux/init.h>
 10#include <linux/fs_enet_pd.h>
 11#include <linux/of_platform.h>
 12
 13#include <asm/time.h>
 14#include <asm/machdep.h>
 15#include <asm/cpm1.h>
 16#include <asm/fs_pd.h>
 17#include <asm/udbg.h>
 18#include <asm/prom.h>
 19
 20#include "mpc8xx.h"
 21
 22struct cpm_pin {
 23	int port, pin, flags;
 24};
 25
 26static __initdata struct cpm_pin adder875_pins[] = {
 27	/* SMC1 */
 28	{CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */
 29	{CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
 30
 31	/* MII1 */
 32	{CPM_PORTA, 0, CPM_PIN_INPUT},
 33	{CPM_PORTA, 1, CPM_PIN_INPUT},
 34	{CPM_PORTA, 2, CPM_PIN_INPUT},
 35	{CPM_PORTA, 3, CPM_PIN_INPUT},
 36	{CPM_PORTA, 4, CPM_PIN_OUTPUT},
 37	{CPM_PORTA, 10, CPM_PIN_OUTPUT},
 38	{CPM_PORTA, 11, CPM_PIN_OUTPUT},
 39	{CPM_PORTB, 19, CPM_PIN_INPUT},
 40	{CPM_PORTB, 31, CPM_PIN_INPUT},
 41	{CPM_PORTC, 12, CPM_PIN_INPUT},
 42	{CPM_PORTC, 13, CPM_PIN_INPUT},
 43	{CPM_PORTE, 30, CPM_PIN_OUTPUT},
 44	{CPM_PORTE, 31, CPM_PIN_OUTPUT},
 45
 46	/* MII2 */
 47	{CPM_PORTE, 14, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
 48	{CPM_PORTE, 15, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
 49	{CPM_PORTE, 16, CPM_PIN_OUTPUT},
 50	{CPM_PORTE, 17, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
 51	{CPM_PORTE, 18, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
 52	{CPM_PORTE, 19, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
 53	{CPM_PORTE, 20, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
 54	{CPM_PORTE, 21, CPM_PIN_OUTPUT},
 55	{CPM_PORTE, 22, CPM_PIN_OUTPUT},
 56	{CPM_PORTE, 23, CPM_PIN_OUTPUT},
 57	{CPM_PORTE, 24, CPM_PIN_OUTPUT},
 58	{CPM_PORTE, 25, CPM_PIN_OUTPUT},
 59	{CPM_PORTE, 26, CPM_PIN_OUTPUT},
 60	{CPM_PORTE, 27, CPM_PIN_OUTPUT},
 61	{CPM_PORTE, 28, CPM_PIN_OUTPUT},
 62	{CPM_PORTE, 29, CPM_PIN_OUTPUT},
 63};
 64
 65static void __init init_ioports(void)
 66{
 67	int i;
 68
 69	for (i = 0; i < ARRAY_SIZE(adder875_pins); i++) {
 70		const struct cpm_pin *pin = &adder875_pins[i];
 71		cpm1_set_pin(pin->port, pin->pin, pin->flags);
 72	}
 73
 74	cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX);
 75
 76	/* Set FEC1 and FEC2 to MII mode */
 77	clrbits32(&mpc8xx_immr->im_cpm.cp_cptr, 0x00000180);
 78}
 79
 80static void __init adder875_setup(void)
 81{
 82	cpm_reset();
 83	init_ioports();
 84}
 85
 86static int __init adder875_probe(void)
 87{
 88	return of_machine_is_compatible("analogue-and-micro,adder875");
 89}
 90
 91static const struct of_device_id of_bus_ids[] __initconst = {
 92	{ .compatible = "simple-bus", },
 93	{},
 94};
 95
 96static int __init declare_of_platform_devices(void)
 97{
 98	of_platform_bus_probe(NULL, of_bus_ids, NULL);
 99	return 0;
100}
101machine_device_initcall(adder875, declare_of_platform_devices);
102
103define_machine(adder875) {
104	.name = "Adder MPC875",
105	.probe = adder875_probe,
106	.setup_arch = adder875_setup,
107	.init_IRQ = mpc8xx_pics_init,
108	.get_irq = mpc8xx_get_irq,
109	.restart = mpc8xx_restart,
110	.calibrate_decr = generic_calibrate_decr,
111	.progress = udbg_progress,
112};