mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
147 lines
3 KiB
C
147 lines
3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (c) 2015 Purna Chandra Mandal <purna.mandal@microchip.com>
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*
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*/
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#ifndef __MICROCHIP_DDR2_REGS_H
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#define __MICROCHIP_DDR2_REGS_H
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#include <linux/bitops.h>
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/* DDR2 Controller */
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struct ddr2_ctrl_regs {
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u32 tsel;
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u32 minlim;
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u32 reqprd;
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u32 mincmd;
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u32 memcon;
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u32 memcfg0;
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u32 memcfg1;
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u32 memcfg2;
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u32 memcfg3;
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u32 memcfg4;
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u32 refcfg;
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u32 pwrcfg;
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u32 dlycfg0;
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u32 dlycfg1;
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u32 dlycfg2;
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u32 dlycfg3;
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u32 odtcfg;
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u32 xfercfg;
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u32 cmdissue;
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u32 odtencfg;
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u32 memwidth;
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u32 unused[11];
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u32 cmd10[16];
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u32 cmd20[16];
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};
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/* Arbiter Config */
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#define MIN_LIM_WIDTH 5
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#define RQST_PERIOD_WIDTH 8
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#define MIN_CMDACPT_WIDTH 8
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/* Refresh Config */
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#define REFCNT_CLK(x) (x)
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#define REFDLY_CLK(x) ((x) << 16)
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#define MAX_PEND_REF(x) ((x) << 24)
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/* Power Config */
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#define PRECH_PWR_DN_ONLY(x) ((x) << 22)
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#define SELF_REF_DLY(x) ((x) << 12)
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#define PWR_DN_DLY(x) ((x) << 4)
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#define EN_AUTO_SELF_REF(x) ((x) << 3)
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#define EN_AUTO_PWR_DN(x) ((x) << 2)
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#define ERR_CORR_EN(x) ((x) << 1)
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#define ECC_EN(x) (x)
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/* Memory Width */
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#define HALF_RATE_MODE BIT(3)
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/* Delay Config */
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#define ODTWLEN(x) ((x) << 20)
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#define ODTRLEN(x) ((x) << 16)
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#define ODTWDLY(x) ((x) << 12)
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#define ODTRDLY(x) ((x) << 8)
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/* Xfer Config */
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#define BIG_ENDIAN(x) ((x) << 31)
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#define MAX_BURST(x) ((x) << 24)
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#define RDATENDLY(x) ((x) << 16)
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#define NXDATAVDLY(x) ((x) << 4)
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#define NXTDATRQDLY(x) ((x) << 0)
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/* Host Commands */
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#define IDLE_NOP 0x00ffffff
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#define PRECH_ALL_CMD 0x00fff401
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#define REF_CMD 0x00fff801
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#define LOAD_MODE_CMD 0x00fff001
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#define CKE_LOW 0x00ffeffe
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#define NUM_HOST_CMDS 12
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/* Host CMD Issue */
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#define CMD_VALID BIT(4)
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#define NUMHOSTCMD(x) (x)
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/* Memory Control */
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#define INIT_DONE BIT(1)
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#define INIT_START BIT(0)
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/* Address Control */
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#define EN_AUTO_PRECH 0
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#define SB_PRI 1
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/* DDR2 Phy Register */
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struct ddr2_phy_regs {
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u32 scl_start;
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u32 unused1[2];
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u32 scl_latency;
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u32 unused2[2];
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u32 scl_config_1;
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u32 scl_config_2;
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u32 pad_ctrl;
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u32 dll_recalib;
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};
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/* PHY PAD CONTROL */
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#define ODT_SEL BIT(0)
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#define ODT_EN BIT(1)
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#define DRIVE_SEL(x) ((x) << 2)
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#define ODT_PULLDOWN(x) ((x) << 4)
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#define ODT_PULLUP(x) ((x) << 6)
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#define EXTRA_OEN_CLK(x) ((x) << 8)
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#define NOEXT_DLL BIT(9)
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#define DLR_DFT_WRCMD BIT(13)
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#define HALF_RATE BIT(14)
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#define DRVSTR_PFET(x) ((x) << 16)
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#define DRVSTR_NFET(x) ((x) << 20)
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#define RCVR_EN BIT(28)
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#define PREAMBLE_DLY(x) ((x) << 29)
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/* PHY DLL RECALIBRATE */
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#define RECALIB_CNT(x) ((x) << 8)
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#define DISABLE_RECALIB(x) ((x) << 26)
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#define DELAY_START_VAL(x) ((x) << 28)
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/* PHY SCL CONFIG1 */
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#define SCL_BURST8 BIT(0)
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#define SCL_DDR_CONNECTED BIT(1)
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#define SCL_RCAS_LAT(x) ((x) << 4)
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#define SCL_ODTCSWW BIT(24)
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/* PHY SCL CONFIG2 */
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#define SCL_CSEN BIT(0)
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#define SCL_WCAS_LAT(x) ((x) << 8)
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/* PHY SCL Latency */
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#define SCL_CAPCLKDLY(x) ((x) << 0)
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#define SCL_DDRCLKDLY(x) ((x) << 4)
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/* PHY SCL START */
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#define SCL_START BIT(28)
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#define SCL_EN BIT(26)
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#define SCL_LUBPASS (BIT(1) | BIT(0))
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#endif /* __MICROCHIP_DDR2_REGS_H */
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