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 22 struct cpm_pin { 23 int port, pin, flags; 24 }; 25 26 static __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 65 static 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 80 static void __init adder875_setup(void) 81 { 82 cpm_reset(); 83 init_ioports(); 84 } 85 86 static int __init adder875_probe(void) 87 { 88 return of_machine_is_compatible("analogue-and-micro,adder875"); 89 } 90 91 static const struct of_device_id of_bus_ids[] __initconst = { 92 { .compatible = "simple-bus", }, 93 {}, 94 }; 95 96 static int __init declare_of_platform_devices(void) 97 { 98 of_platform_bus_probe(NULL, of_bus_ids, NULL); 99 return 0; 100 } 101 machine_device_initcall(adder875, declare_of_platform_devices); 102 103 define_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 }; 113