xref: /arm-trusted-firmware/drivers/st/ddr/stm32mp1_ddr_helpers.c (revision 91f16700b400a8c0651d24a598fc48ee2997a0d7)
1*91f16700Schasinglulu /*
2*91f16700Schasinglulu  * Copyright (c) 2017-2022, STMicroelectronics - All Rights Reserved
3*91f16700Schasinglulu  *
4*91f16700Schasinglulu  * SPDX-License-Identifier: BSD-3-Clause
5*91f16700Schasinglulu  */
6*91f16700Schasinglulu 
7*91f16700Schasinglulu #include <drivers/st/stm32mp1_ddr_helpers.h>
8*91f16700Schasinglulu #include <lib/mmio.h>
9*91f16700Schasinglulu 
10*91f16700Schasinglulu #include <platform_def.h>
11*91f16700Schasinglulu 
12*91f16700Schasinglulu void ddr_enable_clock(void)
13*91f16700Schasinglulu {
14*91f16700Schasinglulu 	stm32mp1_clk_rcc_regs_lock();
15*91f16700Schasinglulu 
16*91f16700Schasinglulu 	mmio_setbits_32(stm32mp_rcc_base() + RCC_DDRITFCR,
17*91f16700Schasinglulu 			RCC_DDRITFCR_DDRC1EN |
18*91f16700Schasinglulu #if STM32MP_DDR_DUAL_AXI_PORT
19*91f16700Schasinglulu 			RCC_DDRITFCR_DDRC2EN |
20*91f16700Schasinglulu #endif
21*91f16700Schasinglulu 			RCC_DDRITFCR_DDRPHYCEN |
22*91f16700Schasinglulu 			RCC_DDRITFCR_DDRPHYCAPBEN |
23*91f16700Schasinglulu 			RCC_DDRITFCR_DDRCAPBEN);
24*91f16700Schasinglulu 
25*91f16700Schasinglulu 	stm32mp1_clk_rcc_regs_unlock();
26*91f16700Schasinglulu }
27