// SPDX-License-Identifier: GPL-2.0+ /* * Keystone EVM : Board initialization * * (C) Copyright 2014 * Texas Instruments Incorporated, <www.ti.com> */ #include <common.h> #include <env.h> #include <init.h> #include <asm/io.h> #include <asm/arch/psc_defs.h> #include <asm/arch/hardware.h> /** * cpu_to_bus - swap bytes of the 32-bit data if the device is BE * @ptr - array of data * @length - lenght of data array */ int cpu_to_bus(u32 *ptr, u32 length) { u32 i; if (!(readl(KS2_DEVSTAT) & 0x1)) for (i = 0; i < length; i++, ptr++) *ptr = cpu_to_be32(*ptr); return 0; } static void turn_off_all_dsps(int num_dsps) { int i; for (i = 0; i < num_dsps; i++) { if (psc_disable_module(i + KS2_LPSC_GEM_0)) printf("Cannot disable module for #%d DSP", i); if (psc_disable_domain(i + KS2_GEM_0_PWR_DOMAIN)) printf("Cannot disable domain for #%d DSP", i); } } int misc_init_r(void) { char *env; long ks2_debug = 0; env = env_get("ks2_debug"); if (env) ks2_debug = simple_strtol(env, NULL, 0); if ((ks2_debug & DBG_LEAVE_DSPS_ON) == 0) turn_off_all_dsps(KS2_NUM_DSPS); return 0; }