1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /* Analogue & Micro Adder MPC875 board support
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Author: Scott Wood <scottwood@freescale.com>
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Copyright (c) 2007 Freescale Semiconductor, Inc.
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <linux/init.h>
10*4882a593Smuzhiyun #include <linux/fs_enet_pd.h>
11*4882a593Smuzhiyun #include <linux/of_platform.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #include <asm/time.h>
14*4882a593Smuzhiyun #include <asm/machdep.h>
15*4882a593Smuzhiyun #include <asm/cpm1.h>
16*4882a593Smuzhiyun #include <asm/fs_pd.h>
17*4882a593Smuzhiyun #include <asm/udbg.h>
18*4882a593Smuzhiyun #include <asm/prom.h>
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun #include "mpc8xx.h"
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun struct cpm_pin {
23*4882a593Smuzhiyun int port, pin, flags;
24*4882a593Smuzhiyun };
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun static __initdata struct cpm_pin adder875_pins[] = {
27*4882a593Smuzhiyun /* SMC1 */
28*4882a593Smuzhiyun {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */
29*4882a593Smuzhiyun {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun /* MII1 */
32*4882a593Smuzhiyun {CPM_PORTA, 0, CPM_PIN_INPUT},
33*4882a593Smuzhiyun {CPM_PORTA, 1, CPM_PIN_INPUT},
34*4882a593Smuzhiyun {CPM_PORTA, 2, CPM_PIN_INPUT},
35*4882a593Smuzhiyun {CPM_PORTA, 3, CPM_PIN_INPUT},
36*4882a593Smuzhiyun {CPM_PORTA, 4, CPM_PIN_OUTPUT},
37*4882a593Smuzhiyun {CPM_PORTA, 10, CPM_PIN_OUTPUT},
38*4882a593Smuzhiyun {CPM_PORTA, 11, CPM_PIN_OUTPUT},
39*4882a593Smuzhiyun {CPM_PORTB, 19, CPM_PIN_INPUT},
40*4882a593Smuzhiyun {CPM_PORTB, 31, CPM_PIN_INPUT},
41*4882a593Smuzhiyun {CPM_PORTC, 12, CPM_PIN_INPUT},
42*4882a593Smuzhiyun {CPM_PORTC, 13, CPM_PIN_INPUT},
43*4882a593Smuzhiyun {CPM_PORTE, 30, CPM_PIN_OUTPUT},
44*4882a593Smuzhiyun {CPM_PORTE, 31, CPM_PIN_OUTPUT},
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun /* MII2 */
47*4882a593Smuzhiyun {CPM_PORTE, 14, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
48*4882a593Smuzhiyun {CPM_PORTE, 15, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
49*4882a593Smuzhiyun {CPM_PORTE, 16, CPM_PIN_OUTPUT},
50*4882a593Smuzhiyun {CPM_PORTE, 17, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
51*4882a593Smuzhiyun {CPM_PORTE, 18, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
52*4882a593Smuzhiyun {CPM_PORTE, 19, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
53*4882a593Smuzhiyun {CPM_PORTE, 20, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
54*4882a593Smuzhiyun {CPM_PORTE, 21, CPM_PIN_OUTPUT},
55*4882a593Smuzhiyun {CPM_PORTE, 22, CPM_PIN_OUTPUT},
56*4882a593Smuzhiyun {CPM_PORTE, 23, CPM_PIN_OUTPUT},
57*4882a593Smuzhiyun {CPM_PORTE, 24, CPM_PIN_OUTPUT},
58*4882a593Smuzhiyun {CPM_PORTE, 25, CPM_PIN_OUTPUT},
59*4882a593Smuzhiyun {CPM_PORTE, 26, CPM_PIN_OUTPUT},
60*4882a593Smuzhiyun {CPM_PORTE, 27, CPM_PIN_OUTPUT},
61*4882a593Smuzhiyun {CPM_PORTE, 28, CPM_PIN_OUTPUT},
62*4882a593Smuzhiyun {CPM_PORTE, 29, CPM_PIN_OUTPUT},
63*4882a593Smuzhiyun };
64*4882a593Smuzhiyun
init_ioports(void)65*4882a593Smuzhiyun static void __init init_ioports(void)
66*4882a593Smuzhiyun {
67*4882a593Smuzhiyun int i;
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun for (i = 0; i < ARRAY_SIZE(adder875_pins); i++) {
70*4882a593Smuzhiyun const struct cpm_pin *pin = &adder875_pins[i];
71*4882a593Smuzhiyun cpm1_set_pin(pin->port, pin->pin, pin->flags);
72*4882a593Smuzhiyun }
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX);
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun /* Set FEC1 and FEC2 to MII mode */
77*4882a593Smuzhiyun clrbits32(&mpc8xx_immr->im_cpm.cp_cptr, 0x00000180);
78*4882a593Smuzhiyun }
79*4882a593Smuzhiyun
adder875_setup(void)80*4882a593Smuzhiyun static void __init adder875_setup(void)
81*4882a593Smuzhiyun {
82*4882a593Smuzhiyun cpm_reset();
83*4882a593Smuzhiyun init_ioports();
84*4882a593Smuzhiyun }
85*4882a593Smuzhiyun
adder875_probe(void)86*4882a593Smuzhiyun static int __init adder875_probe(void)
87*4882a593Smuzhiyun {
88*4882a593Smuzhiyun return of_machine_is_compatible("analogue-and-micro,adder875");
89*4882a593Smuzhiyun }
90*4882a593Smuzhiyun
91*4882a593Smuzhiyun static const struct of_device_id of_bus_ids[] __initconst = {
92*4882a593Smuzhiyun { .compatible = "simple-bus", },
93*4882a593Smuzhiyun {},
94*4882a593Smuzhiyun };
95*4882a593Smuzhiyun
declare_of_platform_devices(void)96*4882a593Smuzhiyun static int __init declare_of_platform_devices(void)
97*4882a593Smuzhiyun {
98*4882a593Smuzhiyun of_platform_bus_probe(NULL, of_bus_ids, NULL);
99*4882a593Smuzhiyun return 0;
100*4882a593Smuzhiyun }
101*4882a593Smuzhiyun machine_device_initcall(adder875, declare_of_platform_devices);
102*4882a593Smuzhiyun
define_machine(adder875)103*4882a593Smuzhiyun define_machine(adder875) {
104*4882a593Smuzhiyun .name = "Adder MPC875",
105*4882a593Smuzhiyun .probe = adder875_probe,
106*4882a593Smuzhiyun .setup_arch = adder875_setup,
107*4882a593Smuzhiyun .init_IRQ = mpc8xx_pics_init,
108*4882a593Smuzhiyun .get_irq = mpc8xx_get_irq,
109*4882a593Smuzhiyun .restart = mpc8xx_restart,
110*4882a593Smuzhiyun .calibrate_decr = generic_calibrate_decr,
111*4882a593Smuzhiyun .progress = udbg_progress,
112*4882a593Smuzhiyun };
113