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/of_platform.h> 11 12 #include <asm/time.h> 13 #include <asm/machdep.h> 14 #include <asm/cpm1.h> 15 #include <asm/8xx_immap.h> 16 #include <asm/udbg.h> 17 18 #include "mpc8xx.h" 19 #include "pic.h" 20 21 struct cpm_pin { 22 int port, pin, flags; 23 }; 24 25 static __initdata struct cpm_pin adder875_pins[] = { 26 /* SMC1 */ 27 {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */ 28 {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ 29 30 /* MII1 */ 31 {CPM_PORTA, 0, CPM_PIN_INPUT}, 32 {CPM_PORTA, 1, CPM_PIN_INPUT}, 33 {CPM_PORTA, 2, CPM_PIN_INPUT}, 34 {CPM_PORTA, 3, CPM_PIN_INPUT}, 35 {CPM_PORTA, 4, CPM_PIN_OUTPUT}, 36 {CPM_PORTA, 10, CPM_PIN_OUTPUT}, 37 {CPM_PORTA, 11, CPM_PIN_OUTPUT}, 38 {CPM_PORTB, 19, CPM_PIN_INPUT}, 39 {CPM_PORTB, 31, CPM_PIN_INPUT}, 40 {CPM_PORTC, 12, CPM_PIN_INPUT}, 41 {CPM_PORTC, 13, CPM_PIN_INPUT}, 42 {CPM_PORTE, 30, CPM_PIN_OUTPUT}, 43 {CPM_PORTE, 31, CPM_PIN_OUTPUT}, 44 45 /* MII2 */ 46 {CPM_PORTE, 14, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, 47 {CPM_PORTE, 15, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, 48 {CPM_PORTE, 16, CPM_PIN_OUTPUT}, 49 {CPM_PORTE, 17, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, 50 {CPM_PORTE, 18, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, 51 {CPM_PORTE, 19, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, 52 {CPM_PORTE, 20, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, 53 {CPM_PORTE, 21, CPM_PIN_OUTPUT}, 54 {CPM_PORTE, 22, CPM_PIN_OUTPUT}, 55 {CPM_PORTE, 23, CPM_PIN_OUTPUT}, 56 {CPM_PORTE, 24, CPM_PIN_OUTPUT}, 57 {CPM_PORTE, 25, CPM_PIN_OUTPUT}, 58 {CPM_PORTE, 26, CPM_PIN_OUTPUT}, 59 {CPM_PORTE, 27, CPM_PIN_OUTPUT}, 60 {CPM_PORTE, 28, CPM_PIN_OUTPUT}, 61 {CPM_PORTE, 29, CPM_PIN_OUTPUT}, 62 }; 63 64 static void __init init_ioports(void) 65 { 66 int i; 67 68 for (i = 0; i < ARRAY_SIZE(adder875_pins); i++) { 69 const struct cpm_pin *pin = &adder875_pins[i]; 70 cpm1_set_pin(pin->port, pin->pin, pin->flags); 71 } 72 73 cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX); 74 75 /* Set FEC1 and FEC2 to MII mode */ 76 clrbits32(&mpc8xx_immr->im_cpm.cp_cptr, 0x00000180); 77 } 78 79 static void __init adder875_setup(void) 80 { 81 cpm_reset(); 82 init_ioports(); 83 } 84 85 static const struct of_device_id of_bus_ids[] __initconst = { 86 { .compatible = "simple-bus", }, 87 {}, 88 }; 89 90 static int __init declare_of_platform_devices(void) 91 { 92 of_platform_bus_probe(NULL, of_bus_ids, NULL); 93 return 0; 94 } 95 machine_device_initcall(adder875, declare_of_platform_devices); 96 97 define_machine(adder875) { 98 .name = "Adder MPC875", 99 .compatible = "analogue-and-micro,adder875", 100 .setup_arch = adder875_setup, 101 .init_IRQ = mpc8xx_pic_init, 102 .get_irq = mpc8xx_get_irq, 103 .restart = mpc8xx_restart, 104 .progress = udbg_progress, 105 }; 106