arm, davinci: add ddr2 definition

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Paulraj Sandeep <s-paulraj@ti.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

diff --git a/arch/arm/include/asm/arch-davinci/ddr2_defs.h b/arch/arm/include/asm/arch-davinci/ddr2_defs.h
new file mode 100644 (file)
index 0000000..1b9430c
--- /dev/null
+++ b/arch/arm/include/asm/arch-davinci/ddr2_defs.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2011
+ * Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#ifndef _DV_DDR2_DEFS_H_
+#define _DV_DDR2_DEFS_H_
+
+/*
+ * DDR2 Memory Ctrl Register structure
+ * See sprueh7d.pdf for more details.
+ */
+struct dv_ddr2_regs_ctrl {
+       unsigned char   rsvd0[4];       /* 0x00 */
+       unsigned int    sdrstat;        /* 0x04 */
+       unsigned int    sdbcr;          /* 0x08 */
+       unsigned int    sdrcr;          /* 0x0C */
+       unsigned int    sdtimr;         /* 0x10 */
+       unsigned int    sdtimr2;        /* 0x14 */
+       unsigned char   rsvd1[4];       /* 0x18 */
+       unsigned int    sdbcr2;         /* 0x1C */
+       unsigned int    pbbpr;          /* 0x20 */
+       unsigned char   rsvd2[156];     /* 0x24 */
+       unsigned int    irr;            /* 0xC0 */
+       unsigned int    imr;            /* 0xC4 */
+       unsigned int    imsr;           /* 0xC8 */
+       unsigned int    imcr;           /* 0xCC */
+       unsigned char   rsvd3[20];      /* 0xD0 */
+       unsigned int    ddrphycr;       /* 0xE4 */
+       unsigned int    ddrphycr2;      /* 0xE8 */
+       unsigned char   rsvd4[4];       /* 0xEC */
+};
+
+#define DV_DDR_PHY_PWRDNEN             0x40
+#define DV_DDR_PHY_EXT_STRBEN  0x80
+#define DV_DDR_PHY_RD_LATENCY_SHIFT    0
+
+#define DV_DDR_SDTMR1_RFC_SHIFT        25
+#define DV_DDR_SDTMR1_RP_SHIFT 22
+#define DV_DDR_SDTMR1_RCD_SHIFT        19
+#define DV_DDR_SDTMR1_WR_SHIFT 16
+#define DV_DDR_SDTMR1_RAS_SHIFT        11
+#define DV_DDR_SDTMR1_RC_SHIFT 6
+#define DV_DDR_SDTMR1_RRD_SHIFT        3
+#define DV_DDR_SDTMR1_WTR_SHIFT        0
+
+#define DV_DDR_SDTMR2_RASMAX_SHIFT     27
+#define DV_DDR_SDTMR2_XP_SHIFT 25
+#define DV_DDR_SDTMR2_XSNR_SHIFT       16
+#define DV_DDR_SDTMR2_XSRD_SHIFT       8
+#define DV_DDR_SDTMR2_RTP_SHIFT        5
+#define DV_DDR_SDTMR2_CKE_SHIFT        0
+
+#define DV_DDR_SDCR_DDR2TERM1_SHIFT    27
+#define DV_DDR_SDCR_IBANK_POS_SHIFT    26
+#define DV_DDR_SDCR_MSDRAMEN_SHIFT     25
+#define DV_DDR_SDCR_DDRDRIVE1_SHIFT    24
+#define DV_DDR_SDCR_BOOTUNLOCK_SHIFT   23
+#define DV_DDR_SDCR_DDR_DDQS_SHIFT     22
+#define DV_DDR_SDCR_DDR2EN_SHIFT       20
+#define DV_DDR_SDCR_DDRDRIVE0_SHIFT    18
+#define DV_DDR_SDCR_DDREN_SHIFT        17
+#define DV_DDR_SDCR_SDRAMEN_SHIFT      16
+#define DV_DDR_SDCR_TIMUNLOCK_SHIFT    15
+#define DV_DDR_SDCR_BUS_WIDTH_SHIFT    14
+#define DV_DDR_SDCR_CL_SHIFT           9
+#define DV_DDR_SDCR_IBANK_SHIFT        4
+#define DV_DDR_SDCR_PAGESIZE_SHIFT     0
+
+#define DV_DDR_SRCR_LPMODEN_SHIFT      31
+#define DV_DDR_SRCR_MCLKSTOPEN_SHIFT   30
+
+#define DV_DDR_BOOTUNLOCK      (1 << DV_DDR_SDCR_BOOTUNLOCK_SHIFT)
+#define DV_DDR_TIMUNLOCK       (1 << DV_DDR_SDCR_TIMUNLOCK_SHIFT)
+
+#define dv_ddr2_regs_ctrl \
+       ((struct dv_ddr2_regs_ctrl *)DAVINCI_DDR_EMIF_CTRL_BASE)
+
+#endif /* _DV_DDR2_DEFS_H_ */