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c3cf06f1a3
All identifiers, regardless of use, that start with two underscores are reserved. This means they can't be used in header guards. The style that this project is now to use the full name of the file in capital letters followed by 'H'. For example, for a file called "uart_example.h", the header guard is UART_EXAMPLE_H. The exceptions are files that are imported from other projects: - CryptoCell driver - dt-bindings folders - zlib headers Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
/*
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* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef DFS_H
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#define DFS_H
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#include <stdint.h>
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struct rk3399_sdram_default_config {
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unsigned char bl;
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/* 1:auto precharge, 0:never auto precharge */
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unsigned char ap;
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/* dram driver strength */
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unsigned char dramds;
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/* dram ODT, if odt=0, this parameter invalid */
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unsigned char dramodt;
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/* ca ODT, if odt=0, this parameter invalid
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* only used by LPDDR4
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*/
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unsigned char caodt;
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unsigned char burst_ref_cnt;
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/* zqcs period, unit(s) */
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unsigned char zqcsi;
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};
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struct drv_odt_lp_config {
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uint32_t pd_idle;
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uint32_t sr_idle;
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uint32_t sr_mc_gate_idle;
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uint32_t srpd_lite_idle;
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uint32_t standby_idle;
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uint32_t odt_en;
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uint32_t dram_side_drv;
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uint32_t dram_side_dq_odt;
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uint32_t dram_side_ca_odt;
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};
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uint32_t ddr_set_rate(uint32_t hz);
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uint32_t ddr_round_rate(uint32_t hz);
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uint32_t ddr_get_rate(void);
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uint32_t dram_set_odt_pd(uint32_t arg0, uint32_t arg1, uint32_t arg2);
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void dram_dfs_init(void);
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void ddr_prepare_for_sys_suspend(void);
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void ddr_prepare_for_sys_resume(void);
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#endif /* DFS_H */
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