1 /* Analogue & Micro Adder MPC875 board support 2 * 3 * Author: Scott Wood <scottwood@freescale.com> 4 * 5 * Copyright (c) 2007 Freescale Semiconductor, Inc. 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License, version 2, as 9 * published by the Free Software Foundation. 10 */ 11 12 #include <linux/init.h> 13 #include <linux/fs_enet_pd.h> 14 #include <linux/of_platform.h> 15 16 #include <asm/time.h> 17 #include <asm/machdep.h> 18 #include <asm/cpm1.h> 19 #include <asm/fs_pd.h> 20 #include <asm/udbg.h> 21 #include <asm/prom.h> 22 23 #include "mpc8xx.h" 24 25 struct cpm_pin { 26 int port, pin, flags; 27 }; 28 29 static __initdata struct cpm_pin adder875_pins[] = { 30 /* SMC1 */ 31 {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */ 32 {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ 33 34 /* MII1 */ 35 {CPM_PORTA, 0, CPM_PIN_INPUT}, 36 {CPM_PORTA, 1, CPM_PIN_INPUT}, 37 {CPM_PORTA, 2, CPM_PIN_INPUT}, 38 {CPM_PORTA, 3, CPM_PIN_INPUT}, 39 {CPM_PORTA, 4, CPM_PIN_OUTPUT}, 40 {CPM_PORTA, 10, CPM_PIN_OUTPUT}, 41 {CPM_PORTA, 11, CPM_PIN_OUTPUT}, 42 {CPM_PORTB, 19, CPM_PIN_INPUT}, 43 {CPM_PORTB, 31, CPM_PIN_INPUT}, 44 {CPM_PORTC, 12, CPM_PIN_INPUT}, 45 {CPM_PORTC, 13, CPM_PIN_INPUT}, 46 {CPM_PORTE, 30, CPM_PIN_OUTPUT}, 47 {CPM_PORTE, 31, CPM_PIN_OUTPUT}, 48 49 /* MII2 */ 50 {CPM_PORTE, 14, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, 51 {CPM_PORTE, 15, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, 52 {CPM_PORTE, 16, CPM_PIN_OUTPUT}, 53 {CPM_PORTE, 17, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, 54 {CPM_PORTE, 18, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, 55 {CPM_PORTE, 19, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, 56 {CPM_PORTE, 20, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, 57 {CPM_PORTE, 21, CPM_PIN_OUTPUT}, 58 {CPM_PORTE, 22, CPM_PIN_OUTPUT}, 59 {CPM_PORTE, 23, CPM_PIN_OUTPUT}, 60 {CPM_PORTE, 24, CPM_PIN_OUTPUT}, 61 {CPM_PORTE, 25, CPM_PIN_OUTPUT}, 62 {CPM_PORTE, 26, CPM_PIN_OUTPUT}, 63 {CPM_PORTE, 27, CPM_PIN_OUTPUT}, 64 {CPM_PORTE, 28, CPM_PIN_OUTPUT}, 65 {CPM_PORTE, 29, CPM_PIN_OUTPUT}, 66 }; 67 68 static void __init init_ioports(void) 69 { 70 int i; 71 72 for (i = 0; i < ARRAY_SIZE(adder875_pins); i++) { 73 const struct cpm_pin *pin = &adder875_pins[i]; 74 cpm1_set_pin(pin->port, pin->pin, pin->flags); 75 } 76 77 cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX); 78 79 /* Set FEC1 and FEC2 to MII mode */ 80 clrbits32(&mpc8xx_immr->im_cpm.cp_cptr, 0x00000180); 81 } 82 83 static void __init adder875_setup(void) 84 { 85 cpm_reset(); 86 init_ioports(); 87 } 88 89 static int __init adder875_probe(void) 90 { 91 unsigned long root = of_get_flat_dt_root(); 92 return of_flat_dt_is_compatible(root, "analogue-and-micro,adder875"); 93 } 94 95 static __initdata struct of_device_id of_bus_ids[] = { 96 { .compatible = "simple-bus", }, 97 {}, 98 }; 99 100 static int __init declare_of_platform_devices(void) 101 { 102 of_platform_bus_probe(NULL, of_bus_ids, NULL); 103 return 0; 104 } 105 machine_device_initcall(adder875, declare_of_platform_devices); 106 107 define_machine(adder875) { 108 .name = "Adder MPC875", 109 .probe = adder875_probe, 110 .setup_arch = adder875_setup, 111 .init_IRQ = mpc8xx_pics_init, 112 .get_irq = mpc8xx_get_irq, 113 .restart = mpc8xx_restart, 114 .calibrate_decr = generic_calibrate_decr, 115 .set_rtc_time = mpc8xx_set_rtc_time, 116 .get_rtc_time = mpc8xx_get_rtc_time, 117 .progress = udbg_progress, 118 }; 119