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![Wolfgang Denk](/assets/img/avatar_default.png)
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*
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* (C) Copyright 2006
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* Stefan Roese, DENX Software Engineering, sr@denx.de.
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*
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* (C) Copyright 2006
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* DAVE Srl <www.dave-tech.it>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _SDRAM_H_
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#define _SDRAM_H_
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#include <config.h>
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#define ONE_BILLION 1000000000
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struct sdram_conf_s {
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unsigned long size;
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int rows;
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unsigned long reg;
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};
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typedef struct sdram_conf_s sdram_conf_t;
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/* Bitfields offsets */
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#define SDRAM0_TR_CASL (31 - 8)
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#define SDRAM0_TR_PTA (31 - 13)
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#define SDRAM0_TR_CTP (31 - 15)
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#define SDRAM0_TR_LDF (31 - 17)
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#define SDRAM0_TR_RFTA (31 - 29)
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#define SDRAM0_TR_RCD (31 - 31)
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#ifdef CONFIG_SYS_SDRAM_CL
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/* SDRAM timings [ns] according to AMCC/IBM names (see SDRAM_faq.doc) */
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#define CONFIG_SYS_SDRAM_CASL CONFIG_SYS_SDRAM_CL
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#define CONFIG_SYS_SDRAM_PTA CONFIG_SYS_SDRAM_tRP
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#define CONFIG_SYS_SDRAM_CTP (CONFIG_SYS_SDRAM_tRC - CONFIG_SYS_SDRAM_tRCD - CONFIG_SYS_SDRAM_tRP)
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#define CONFIG_SYS_SDRAM_LDF 0
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#ifdef CONFIG_SYS_SDRAM_tRFC
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#define CONFIG_SYS_SDRAM_RFTA CONFIG_SYS_SDRAM_tRFC
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#else
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#define CONFIG_SYS_SDRAM_RFTA CONFIG_SYS_SDRAM_tRC
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#endif
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#define CONFIG_SYS_SDRAM_RCD CONFIG_SYS_SDRAM_tRCD
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#endif /* #ifdef CONFIG_SYS_SDRAM_CL */
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/*
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* Some defines for the 440 DDR controller
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*/
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#define SDRAM_CFG0_DC_EN 0x80000000 /* SDRAM Controller Enable */
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#define SDRAM_CFG0_MEMCHK 0x30000000 /* Memory data error checking mask*/
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#define SDRAM_CFG0_MEMCHK_NON 0x00000000 /* No ECC generation */
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#define SDRAM_CFG0_MEMCHK_GEN 0x20000000 /* ECC generation */
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#define SDRAM_CFG0_MEMCHK_CHK 0x30000000 /* ECC generation and checking */
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#define SDRAM_CFG0_DRAMWDTH 0x02000000 /* DRAM width mask */
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#define SDRAM_CFG0_DRAMWDTH_32 0x00000000 /* 32 bits */
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#define SDRAM_CFG0_DRAMWDTH_64 0x02000000 /* 64 bits */
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#endif
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