Bryan O'Donoghue | 07cb7a4 | 2018-05-25 16:48:39 +0100 | [diff] [blame^] | 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 | } |