1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Routines common to most mpc86xx-based boards. 4 */ 5 6 #include <linux/init.h> 7 #include <linux/mod_devicetable.h> 8 #include <linux/of_platform.h> 9 #include <asm/reg.h> 10 #include <asm/synch.h> 11 12 #include "mpc86xx.h" 13 14 static const struct of_device_id mpc86xx_common_ids[] __initconst = { 15 { .type = "soc", }, 16 { .compatible = "soc", }, 17 { .compatible = "simple-bus", }, 18 { .name = "localbus", }, 19 { .compatible = "gianfar", }, 20 { .compatible = "fsl,mpc8641-pcie", }, 21 {}, 22 }; 23 24 int __init mpc86xx_common_publish_devices(void) 25 { 26 return of_platform_bus_probe(NULL, mpc86xx_common_ids, NULL); 27 } 28 29 long __init mpc86xx_time_init(void) 30 { 31 unsigned int temp; 32 33 /* Set the time base to zero */ 34 mtspr(SPRN_TBWL, 0); 35 mtspr(SPRN_TBWU, 0); 36 37 temp = mfspr(SPRN_HID0); 38 temp |= HID0_TBEN; 39 mtspr(SPRN_HID0, temp); 40 isync(); 41 42 return 0; 43 } 44