1 /* 2 * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 #include <arch.h> 7 #include <mmio.h> 8 #include <stdint.h> 9 #include <stdbool.h> 10 #include <imx_regs.h> 11 #include <imx_clock.h> 12 13 void imx_clock_target_set(unsigned int id, uint32_t val) 14 { 15 struct ccm *ccm = ((struct ccm *)CCM_BASE); 16 uintptr_t addr; 17 18 if (id > CCM_ROOT_CTRL_NUM) 19 return; 20 21 addr = (uintptr_t)&ccm->ccm_root_ctrl[id].ccm_target_root; 22 mmio_write_32(addr, val); 23 } 24 25 void imx_clock_target_clr(unsigned int id, uint32_t val) 26 { 27 struct ccm *ccm = ((struct ccm *)CCM_BASE); 28 uintptr_t addr; 29 30 if (id > CCM_ROOT_CTRL_NUM) 31 return; 32 33 addr = (uintptr_t)&ccm->ccm_root_ctrl[id].ccm_target_root_clr; 34 mmio_write_32(addr, val); 35 } 36 37 void imx_clock_gate_enable(unsigned int id, bool enable) 38 { 39 struct ccm *ccm = ((struct ccm *)CCM_BASE); 40 uintptr_t addr; 41 42 if (id > CCM_CLK_GATE_CTRL_NUM) 43 return; 44 45 /* TODO: add support for more than DOMAIN0 clocks */ 46 if (enable) 47 addr = (uintptr_t)&ccm->ccm_clk_gate_ctrl[id].ccm_ccgr_set; 48 else 49 addr = (uintptr_t)&ccm->ccm_clk_gate_ctrl[id].ccm_ccgr_clr; 50 51 mmio_write_32(addr, CCM_CCGR_SETTING0_DOM_CLK_ALWAYS); 52 } 53