1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Keystone EVM : Board initialization 4 * 5 * (C) Copyright 2014 6 * Texas Instruments Incorporated, <www.ti.com> 7 */ 8 9 #include <common.h> 10 #include <asm/io.h> 11 #include <asm/arch/psc_defs.h> 12 #include <asm/arch/hardware.h> 13 14 /** 15 * cpu_to_bus - swap bytes of the 32-bit data if the device is BE 16 * @ptr - array of data 17 * @length - lenght of data array 18 */ cpu_to_bus(u32 * ptr,u32 length)19int cpu_to_bus(u32 *ptr, u32 length) 20 { 21 u32 i; 22 23 if (!(readl(KS2_DEVSTAT) & 0x1)) 24 for (i = 0; i < length; i++, ptr++) 25 *ptr = cpu_to_be32(*ptr); 26 27 return 0; 28 } 29 turn_off_all_dsps(int num_dsps)30static void turn_off_all_dsps(int num_dsps) 31 { 32 int i; 33 34 for (i = 0; i < num_dsps; i++) { 35 if (psc_disable_module(i + KS2_LPSC_GEM_0)) 36 printf("Cannot disable module for #%d DSP", i); 37 38 if (psc_disable_domain(i + KS2_GEM_0_PWR_DOMAIN)) 39 printf("Cannot disable domain for #%d DSP", i); 40 } 41 } 42 misc_init_r(void)43int misc_init_r(void) 44 { 45 char *env; 46 long ks2_debug = 0; 47 48 env = env_get("ks2_debug"); 49 50 if (env) 51 ks2_debug = simple_strtol(env, NULL, 0); 52 53 if ((ks2_debug & DBG_LEAVE_DSPS_ON) == 0) 54 turn_off_all_dsps(KS2_NUM_DSPS); 55 56 return 0; 57 } 58