guowenxue
2020-08-21 ff7ef1ee854ac0eaf77b6ec14441dfebb6fb61fa
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
diff -Nuar u-boot-2010.09/board/lingyun/fl2440/Makefile u-boot-2010.09-3-nand/board/lingyun/fl2440/Makefile
--- u-boot-2010.09/board/lingyun/fl2440/Makefile    2015-11-16 13:35:08.197993985 +0800
+++ u-boot-2010.09-3-nand/board/lingyun/fl2440/Makefile    2015-11-16 13:37:57.298995667 +0800
@@ -25,7 +25,7 @@
 
 LIB    = $(obj)lib$(BOARD).a
 
-COBJS    := fl2440.o nand_read.o flash.o
+COBJS    := fl2440.o nand_read.o
 SOBJS    := lowlevel_init.o
 
 SRCS    := $(SOBJS:.o=.S) $(COBJS:.o=.c)
diff -Nuar u-boot-2010.09/common/cmd_nand.c u-boot-2010.09-3-nand/common/cmd_nand.c
--- u-boot-2010.09/common/cmd_nand.c    2010-09-29 05:20:55.000000000 +0800
+++ u-boot-2010.09-3-nand/common/cmd_nand.c    2015-11-16 13:37:57.298995667 +0800
@@ -148,6 +148,11 @@
 #if defined(CONFIG_CMD_MTDPARTS)
 out:
 #endif
+    /* If the size is not aligment, then let it's page alignment */
+    if(0 != (*size%nand->writesize)) 
+    {
+        *size = (*size / nand->writesize + 1) * nand->writesize;  
+    }
     printf("device %d ", idx);
     if (*size == nand->size)
         puts("whole chip\n");
diff -Nuar u-boot-2010.09/drivers/mtd/nand/s3c2410_nand.c u-boot-2010.09-3-nand/drivers/mtd/nand/s3c2410_nand.c
--- u-boot-2010.09/drivers/mtd/nand/s3c2410_nand.c    2010-09-29 05:20:55.000000000 +0800
+++ u-boot-2010.09-3-nand/drivers/mtd/nand/s3c2410_nand.c    2015-11-16 13:37:57.298995667 +0800
@@ -24,6 +24,7 @@
 #include <asm/arch/s3c24x0_cpu.h>
 #include <asm/io.h>
 
+#if defined(CONFIG_S3C2410)
 #define S3C2410_NFCONF_EN          (1<<15)
 #define S3C2410_NFCONF_512BYTE     (1<<14)
 #define S3C2410_NFCONF_4STEP       (1<<13)
@@ -36,6 +37,20 @@
 #define S3C2410_ADDR_NALE 4
 #define S3C2410_ADDR_NCLE 8
 
+#elif defined(CONFIG_S3C2440)
+#define S3C2410_NFCONT_EN          (1<<0)
+#define S3C2410_NFCONT_INITECC     (1<<4)
+#define S3C2410_NFCONT_nFCE        (1<<1)
+#define S3C2410_NFCONT_MAINECCLOCK (1<<5)
+#define S3C2410_NFCONF_TACLS(x)    ((x)<<12)
+#define S3C2410_NFCONF_TWRPH0(x)   ((x)<<8)
+#define S3C2410_NFCONF_TWRPH1(x)   ((x)<<4)
+
+#define S3C2410_ADDR_NALE 0x08
+#define S3C2410_ADDR_NCLE 0x0c
+#endif
+ulong IO_ADDR_W = CONFIG_SYS_NAND_BASE;
+
 #ifdef CONFIG_NAND_SPL
 
 /* in the early stage of NAND flash booting, printf() is not available */
@@ -59,25 +74,31 @@
     debugX(1, "hwcontrol(): 0x%02x 0x%02x\n", cmd, ctrl);
 
     if (ctrl & NAND_CTRL_CHANGE) {
-        ulong IO_ADDR_W = (ulong)nand;
+        IO_ADDR_W = (ulong)nand;
 
         if (!(ctrl & NAND_CLE))
             IO_ADDR_W |= S3C2410_ADDR_NCLE;
         if (!(ctrl & NAND_ALE))
             IO_ADDR_W |= S3C2410_ADDR_NALE;
 
-        chip->IO_ADDR_W = (void *)IO_ADDR_W;
+        //chip->IO_ADDR_W = (void *)IO_ADDR_W;
 
         if (ctrl & NAND_NCE)
-            writel(readl(&nand->NFCONF) & ~S3C2410_NFCONF_nFCE,
-                   &nand->NFCONF);
+#if defined(CONFIG_S3C2410)
+            writel(readl(&nand->NFCONF) & ~S3C2410_NFCONF_nFCE, &nand->NFCONF);
+#elif defined(CONFIG_S3C2440)
+            writel(readl(&nand->NFCONT) & ~S3C2410_NFCONT_nFCE, &nand->NFCONT);
+#endif
         else
-            writel(readl(&nand->NFCONF) | S3C2410_NFCONF_nFCE,
-                   &nand->NFCONF);
+#if defined(CONFIG_S3C2410)
+            writel(readl(&nand->NFCONF) | S3C2410_NFCONF_nFCE, &nand->NFCONF);
+#elif defined(CONFIG_S3C2440)
+            writel(readl(&nand->NFCONT) | S3C2410_NFCONT_nFCE, &nand->NFCONT);
+#endif
     }
 
     if (cmd != NAND_CMD_NONE)
-        writeb(cmd, chip->IO_ADDR_W);
+        writeb(cmd, (void *)IO_ADDR_W);
 }
 
 static int s3c2410_dev_ready(struct mtd_info *mtd)
@@ -92,7 +113,11 @@
 {
     struct s3c2410_nand *nand = s3c2410_get_base_nand();
     debugX(1, "s3c2410_nand_enable_hwecc(%p, %d)\n", mtd, mode);
+#if defined(CONFIG_S3C2410)
     writel(readl(&nand->NFCONF) | S3C2410_NFCONF_INITECC, &nand->NFCONF);
+#elif defined(CONFIG_S3C2440)
+    writel(readl(&nand->NFCONT) | S3C2410_NFCONT_INITECC, &nand->NFCONT);
+#endif
 }
 
 static int s3c2410_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
@@ -132,6 +157,7 @@
 
     writel(readl(&clk_power->CLKCON) | (1 << 4), &clk_power->CLKCON);
 
+#if defined(CONFIG_S3C2410)
     /* initialize hardware */
     twrph0 = 3;
     twrph1 = 0;
@@ -145,6 +171,20 @@
 
     /* initialize nand_chip data structure */
     nand->IO_ADDR_R = nand->IO_ADDR_W = (void *)&nand_reg->NFDATA;
+#elif defined(CONFIG_S3C2440) 
+    twrph0 = 4; 
+    twrph1 = 2; 
+    tacls = 0; 
+    cfg = 0;
+    cfg |= S3C2410_NFCONF_TACLS(tacls - 1);
+    cfg |= S3C2410_NFCONF_TWRPH0(twrph0 - 1);
+    cfg |= S3C2410_NFCONF_TWRPH1(twrph1 - 1);
+    writel(cfg, &nand_reg->NFCONF); 
+    cfg = (0<<13)|(0<<12)|(0<<10)|(0<<9)|(0<<8)|(0<<6)|(0<<5)|(1<<4)|(0<<1)|(1<<0);
+    writel(cfg, &nand_reg->NFCONT);
+    /*  initialize nand_chip data structure */
+    nand->IO_ADDR_R = nand->IO_ADDR_W = (void *)&nand_reg->NFDATA;
+#endif
 
     nand->select_chip = NULL;
 
diff -Nuar u-boot-2010.09/include/configs/fl2440.h u-boot-2010.09-3-nand/include/configs/fl2440.h
--- u-boot-2010.09/include/configs/fl2440.h    2015-11-16 13:35:08.199994163 +0800
+++ u-boot-2010.09-3-nand/include/configs/fl2440.h    2015-11-16 13:37:57.298995667 +0800
@@ -103,6 +103,7 @@
 #define CONFIG_CMD_DATE
 #define CONFIG_CMD_ELF
 #define CONFIG_CMD_PING
+#define CONFIG_CMD_NAND
 
 
 #define CONFIG_BOOTDELAY    2
@@ -159,11 +160,15 @@
 
 #define CONFIG_SYS_FLASH_BASE        PHYS_FLASH_1
 
+#define CONFIG_SYS_NO_FLASH         1
+#undef  CONFIG_CMD_IMLS
+
 /*-----------------------------------------------------------------------
  * FLASH and environment organization
  */
-
+#ifndef CONFIG_SYS_NO_FLASH
 #define CONFIG_AMD_LV400    1    /* uncomment this if you have a LV400 flash */
+#endif
 #if 0
 #define CONFIG_AMD_LV800    1    /* uncomment this if you have a LV800 flash */
 #endif
@@ -184,7 +189,22 @@
 #define CONFIG_SYS_FLASH_ERASE_TOUT    (5*CONFIG_SYS_HZ) /* Timeout for Flash Erase */
 #define CONFIG_SYS_FLASH_WRITE_TOUT    (5*CONFIG_SYS_HZ) /* Timeout for Flash Write */
 
+#ifndef CONFIG_SYS_NO_FLASH
 #define    CONFIG_ENV_IS_IN_FLASH    1
 #define CONFIG_ENV_SIZE        0x10000    /* Total Size of Environment Sector */
+#endif
+
+#if defined(CONFIG_CMD_NAND) 
+#define CONFIG_NAND_S3C2410 
+#define CONFIG_S3C2410_NAND_SKIP_BAD  1 
+#define CONFIG_SYS_NAND_BASE          0x4E000000 
+#define CONFIG_SYS_MAX_NAND_DEVICE    1   /* Max number of NAND devices */ 
+#define CONFIG_SYS_NAND_MAX_CHIPS     1
+#define CONFIG_MTD_NAND_VERIFY_WRITE 
+
+#define CONFIG_ENV_IS_IN_NAND   1 
+#define CONFIG_ENV_OFFSET       0X60000 
+#define CONFIG_ENV_SIZE         0x20000 /* Total Size of Environment Sector */ 
+#endif  /*   CONFIG_CMD_NAND */ 
 
 #endif    /* __CONFIG_H */