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Davinci: Configurable NAND chip selects
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1 /*
2  * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
3  *
4  * See file CREDITS for list of people who contributed to this
5  * project.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as
9  * published by the Free Software Foundation; either version 2 of
10  * the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20  * MA 02111-1307 USA
21  */
22 #ifndef _EMIF_DEFS_H_
23 #define _EMIF_DEFS_H_
24
25 #include <asm/arch/hardware.h>
26
27 typedef struct {
28         dv_reg          ERCSR;
29         dv_reg          AWCCR;
30         dv_reg          SDBCR;
31         dv_reg          SDRCR;
32         dv_reg          AB1CR;
33         dv_reg          AB2CR;
34         dv_reg          AB3CR;
35         dv_reg          AB4CR;
36         dv_reg          SDTIMR;
37         dv_reg          DDRSR;
38         dv_reg          DDRPHYCR;
39         dv_reg          DDRPHYSR;
40         dv_reg          TOTAR;
41         dv_reg          TOTACTR;
42         dv_reg          DDRPHYID_REV;
43         dv_reg          SDSRETR;
44         dv_reg          EIRR;
45         dv_reg          EIMR;
46         dv_reg          EIMSR;
47         dv_reg          EIMCR;
48         dv_reg          IOCTRLR;
49         dv_reg          IOSTATR;
50         u_int8_t        RSVD0[8];
51         dv_reg          NANDFCR;
52         dv_reg          NANDFSR;
53         u_int8_t        RSVD1[8];
54         dv_reg          NANDFECC[4];
55         u_int8_t        RSVD2[60];
56         dv_reg          NAND4BITECCLOAD;
57         dv_reg          NAND4BITECC1;
58         dv_reg          NAND4BITECC2;
59         dv_reg          NAND4BITECC3;
60         dv_reg          NAND4BITECC4;
61         dv_reg          NANDERRADD1;
62         dv_reg          NANDERRADD2;
63         dv_reg          NANDERRVAL1;
64         dv_reg          NANDERRVAL2;
65 } emif_registers;
66
67 typedef emif_registers  *emifregs;
68
69 #define DAVINCI_NANDFCR_4BIT_ECC_SEL_MASK               (3 << 4)
70 #define DAVINCI_NANDFCR_4BIT_ECC_SEL(n)                 ((n-2) << 4)
71
72 #define DAVINCI_NANDFCR_1BIT_ECC_START(n)               (1 << (8 + (n-2)))
73
74 #define DAVINCI_NANDFCR_4BIT_ECC_START                  (1 << 12)
75 #define DAVINCI_NANDFCR_4BIT_CALC_START                 (1 << 13)
76
77 #endif