From 531716e1710083f91d9fa351f89d18e271b5c577 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Sat, 13 Sep 2003 19:01:12 +0000
Subject: =?UTF-8?q?*=20Patch=20by=20David=20M=FCller,=2013=20Sep=202003:?=
 =?UTF-8?q?=20=20=20various=20changes=20to=20VCMA9=20board=20specific=20fi?=
 =?UTF-8?q?les?=
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* Add I2C support for MGT5100 / MPC5200
---
 board/mpl/vcma9/cmd_vcma9.c |  46 ++++++++++++++--
 board/mpl/vcma9/config.mk   |  14 ++---
 board/mpl/vcma9/memsetup.S  |  59 ++++++++++++++++++--
 board/mpl/vcma9/vcma9.c     | 127 +++++++++++++++++++++++++++++++-------------
 board/mpl/vcma9/vcma9.h     |  26 +++++----
 5 files changed, 209 insertions(+), 63 deletions(-)

(limited to 'board/mpl')

diff --git a/board/mpl/vcma9/cmd_vcma9.c b/board/mpl/vcma9/cmd_vcma9.c
index 32fa334..3b04535 100644
--- a/board/mpl/vcma9/cmd_vcma9.c
+++ b/board/mpl/vcma9/cmd_vcma9.c
@@ -41,9 +41,12 @@ static uchar cs8900_chksum(ushort data)
 #endif
 
 extern void print_vcma9_info(void);
-extern int vcma9_cantest(void);
+extern int vcma9_cantest(int);
 extern int vcma9_nandtest(void);
-extern int vcma9_dactest(void);
+extern int vcma9_nanderase(void);
+extern int vcma9_nandread(ulong);
+extern int vcma9_nandwrite(ulong);
+extern int vcma9_dactest(int);
 extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 
 /* ------------------------------------------------------------------------- */
@@ -126,18 +129,53 @@ int do_vcma9(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 #endif
 #if 0
 	if (strcmp(argv[1], "cantest") == 0) {
-		vcma9_cantest();
+		if (argc >= 3)
+			vcma9_cantest(strcmp(argv[2], "s") ? 0 : 1);
+		else
+			vcma9_cantest(0);
 		return 0;
 	}
 	if (strcmp(argv[1], "nandtest") == 0) {
 		vcma9_nandtest();
 		return 0;
 	}
+	if (strcmp(argv[1], "nanderase") == 0) {
+		vcma9_nanderase();
+		return 0;
+	}
+	if (strcmp(argv[1], "nandread") == 0) {
+		ulong offset = 0;
+
+		if (argc >= 3)
+			offset = simple_strtoul(argv[2], NULL, 16);
+
+		vcma9_nandread(offset);
+		return 0;
+	}
+	if (strcmp(argv[1], "nandwrite") == 0) {
+		ulong offset = 0;
+
+		if (argc >= 3)
+			offset = simple_strtoul(argv[2], NULL, 16);
+
+		vcma9_nandwrite(offset);
+		return 0;
+	}
 	if (strcmp(argv[1], "dactest") == 0) {
-		vcma9_dactest();
+		if (argc >= 3)
+			vcma9_dactest(strcmp(argv[2], "s") ? 0 : 1);
+		else
+		vcma9_dactest(0);
 		return 0;
 	}
 #endif
 
 	return (do_mplcommon(cmdtp, flag, argc, argv));
 }
+
+U_BOOT_CMD(
+	vcma9, 6, 1, do_vcma9,
+	"vcma9   - VCMA9 specific commands\n",
+	"flash mem [SrcAddr]\n    - updates U-Boot with image in memory\n"
+);
+
diff --git a/board/mpl/vcma9/config.mk b/board/mpl/vcma9/config.mk
index 95d69cc..942d42e 100644
--- a/board/mpl/vcma9/config.mk
+++ b/board/mpl/vcma9/config.mk
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2002
+# (C) Copyright 2002, 2003
 # David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
 #
 # MPL VCMA9 board with S3C2410X (ARM920T) cpu
@@ -8,17 +8,17 @@
 #
 
 #
-# MPL VCMA9 has 1 bank of 64 MB DRAM
-#
-# 3000'0000 to 3400'0000
+# MPL VCMA9 has 1 bank of minimal 16 MB DRAM
+# from 0x30000000
 #
 # Linux-Kernel is expected to be at 3000'8000, entry 3000'8000
-# optionally with a ramdisk at 3080'0000
+# optionally with a ramdisk at 3040'0000
 #
-# we load ourself to 33F8'0000
+# we load ourself to 30F8'0000
 #
-# download area is 3300'0000
+# download area is 3080'0000
 #
 
 
+#TEXT_BASE = 0x30F80000
 TEXT_BASE = 0x33F80000
diff --git a/board/mpl/vcma9/memsetup.S b/board/mpl/vcma9/memsetup.S
index 7b4193d..ab65901 100644
--- a/board/mpl/vcma9/memsetup.S
+++ b/board/mpl/vcma9/memsetup.S
@@ -34,7 +34,9 @@
 
 /* some parameters for the board */
 
-#define BWSCON	0x48000000
+#define BWSCON		0x48000000
+#define PLD_BASE	0x2C000000
+#define SDRAM_REG	0x2C000106
 
 /* BWSCON */
 #define DW8		 	(0x0)
@@ -43,6 +45,9 @@
 #define WAIT		 	(0x1<<2)
 #define UBLB		 	(0x1<<3)
 
+/* BANKSIZE */
+#define BURST_EN		(0x1<<7)
+
 #define B1_BWSCON	  	(DW16)
 #define B2_BWSCON	  	(DW32)
 #define B3_BWSCON	  	(DW32)
@@ -130,24 +135,39 @@ memsetup:
 	/* memory control configuration */
 	/* make r0 relative the current location so that it */
 	/* reads SMRDATA out of FLASH rather than memory ! */
-	ldr     r0, =SMRDATA
+	ldr     r0, =CSDATA
 	ldr	r1, _TEXT_BASE
 	sub	r0, r0, r1
 	ldr	r1, =BWSCON	/* Bus Width Status Controller */
-	add     r2, r0, #13*4
+	add     r2, r0, #CSDATA_END-CSDATA
 0:
 	ldr     r3, [r0], #4
 	str     r3, [r1], #4
 	cmp     r2, r0
 	bne     0b
 
+	/* PLD access is now possible */
+	/* r0 == SDRAMDATA */
+	/* r1 == SDRAM controller regs */
+	ldr	r2, =PLD_BASE
+	ldrb	r3, [r2, #SDRAM_REG-PLD_BASE]
+	mov	r4, #SDRAMDATA1_END-SDRAMDATA
+	/* calculate start and end point */
+	mla	r0, r3, r4, r0 
+	add     r2, r0, r4
+0:
+	ldr     r3, [r0], #4
+	str     r3, [r1], #4
+	cmp     r2, r0
+	bne     0b
+	
 	/* everything is fine now */
 	mov	pc, lr
 
 	.ltorg
 /* the literal pools origin */
 
-SMRDATA:
+CSDATA:
     .word (0+(B1_BWSCON<<4)+(B2_BWSCON<<8)+(B3_BWSCON<<12)+(B4_BWSCON<<16)+(B5_BWSCON<<20)+(B6_BWSCON<<24)+(B7_BWSCON<<28))
     .word ((B0_Tacs<<13)+(B0_Tcos<<11)+(B0_Tacc<<8)+(B0_Tcoh<<6)+(B0_Tah<<4)+(B0_Tacp<<2)+(B0_PMC))
     .word ((B1_Tacs<<13)+(B1_Tcos<<11)+(B1_Tacc<<8)+(B1_Tcoh<<6)+(B1_Tah<<4)+(B1_Tacp<<2)+(B1_PMC))
@@ -155,9 +175,38 @@ SMRDATA:
     .word ((B3_Tacs<<13)+(B3_Tcos<<11)+(B3_Tacc<<8)+(B3_Tcoh<<6)+(B3_Tah<<4)+(B3_Tacp<<2)+(B3_PMC))
     .word ((B4_Tacs<<13)+(B4_Tcos<<11)+(B4_Tacc<<8)+(B4_Tcoh<<6)+(B4_Tah<<4)+(B4_Tacp<<2)+(B4_PMC))
     .word ((B5_Tacs<<13)+(B5_Tcos<<11)+(B5_Tacc<<8)+(B5_Tcoh<<6)+(B5_Tah<<4)+(B5_Tacp<<2)+(B5_PMC))
+CSDATA_END:
+
+SDRAMDATA:
+/* 4Mx8x4 */
+    .word ((B6_MT<<15)+(B6_Trcd<<2)+(B6_SCAN))
+    .word ((B7_MT<<15)+(B7_Trcd<<2)+(B7_SCAN))
+    .word ((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT)
+    .word 0x32 + BURST_EN
+    .word 0x30
+    .word 0x30
+SDRAMDATA1_END:
+
+/* 8Mx8x4 (not implemented yet) */
+    .word ((B6_MT<<15)+(B6_Trcd<<2)+(B6_SCAN))
+    .word ((B7_MT<<15)+(B7_Trcd<<2)+(B7_SCAN))
+    .word ((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT)
+    .word 0x32 + BURST_EN
+    .word 0x30
+    .word 0x30
+    
+/* 2Mx8x4 (not implemented yet) */
+    .word ((B6_MT<<15)+(B6_Trcd<<2)+(B6_SCAN))
+    .word ((B7_MT<<15)+(B7_Trcd<<2)+(B7_SCAN))
+    .word ((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT)
+    .word 0x32 + BURST_EN
+    .word 0x30
+    .word 0x30
+    
+/* 4Mx8x2 (not implemented yet) */
     .word ((B6_MT<<15)+(B6_Trcd<<2)+(B6_SCAN))
     .word ((B7_MT<<15)+(B7_Trcd<<2)+(B7_SCAN))
     .word ((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT)
-    .word 0x32
+    .word 0x32 + BURST_EN
     .word 0x30
     .word 0x30
diff --git a/board/mpl/vcma9/vcma9.c b/board/mpl/vcma9/vcma9.c
index 359e565..33cec02 100644
--- a/board/mpl/vcma9/vcma9.c
+++ b/board/mpl/vcma9/vcma9.c
@@ -130,16 +130,6 @@ int board_init(void)
 	return 0;
 }
 
-int dram_init(void)
-{
-	DECLARE_GLOBAL_DATA_PTR;
-
-	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
-	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
-
-	return 0;
-}
-
 /*
  * NAND flash initialization.
  */
@@ -162,9 +152,16 @@ static inline void NF_Reset(void)
 
 static inline void NF_Init(void)
 {
+#if 0 /* a little bit too optimistic */
 #define TACLS   0
 #define TWRPH0  3
 #define TWRPH1  0
+#else
+#define TACLS   0
+#define TWRPH0  4
+#define TWRPH1  2
+#endif
+
     NF_Conf((1<<15)|(0<<14)|(0<<13)|(1<<12)|(1<<11)|(TACLS<<8)|(TWRPH0<<4)|(TWRPH1<<0));
     /*nand->NFCONF = (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(TACLS<<8)|(TWRPH0<<4)|(TWRPH1<<0); */
     /* 1  1    1     1,   1      xxx,  r xxx,   r xxx */
@@ -177,15 +174,12 @@ void
 nand_init(void)
 {
 	S3C2410_NAND * const nand = S3C2410_GetBase_NAND();
-	unsigned totlen;
 
 	NF_Init();
 #ifdef DEBUG
 	printf("NAND flash probing at 0x%.8lX\n", (ulong)nand);
 #endif
-	totlen = nand_probe((ulong)nand) >> 20;
-
-	printf ("%4lu MB\n", totlen >> 20);
+	printf ("%4lu MB\n", nand_probe((ulong)nand) >> 20);
 }
 #endif
 
@@ -193,29 +187,40 @@ nand_init(void)
  * Get some Board/PLD Info
  */
 
-static uchar Get_PLD_ID(void)
+static u8 Get_PLD_ID(void)
+{
+	VCMA9_PLD * const pld = VCMA9_GetBase_PLD();
+	
+	return(pld->ID);
+}
+
+static u8 Get_PLD_BOARD(void)
 {
-	return(*(volatile uchar *)PLD_ID_REG);
+	VCMA9_PLD * const pld = VCMA9_GetBase_PLD();
+	
+	return(pld->BOARD);
 }
 
-static uchar Get_PLD_BOARD(void)
+static u8 Get_PLD_SDRAM(void)
 {
-	return(*(volatile uchar *)PLD_BOARD_REG);
+	VCMA9_PLD * const pld = VCMA9_GetBase_PLD();
+	
+	return(pld->SDRAM);
 }
 
-static uchar Get_PLD_Version(void)
+static u8 Get_PLD_Version(void)
 {
 	return((Get_PLD_ID() >> 4) & 0x0F);
 }
 
-static uchar Get_PLD_Revision(void)
+static u8 Get_PLD_Revision(void)
 {
 	return(Get_PLD_ID() & 0x0F);
 }
 
 static int Get_Board_Config(void)
 {
-	uchar config = Get_PLD_BOARD() & 0x03;
+	u8 config = Get_PLD_BOARD() & 0x03;
 
 	if (config == 3)
 	    return 1;
@@ -228,6 +233,54 @@ static uchar Get_Board_PCB(void)
 	return(((Get_PLD_BOARD() >> 4) & 0x03) + 'A');
 }
 
+static u8 Get_SDRAM_ChipNr(void)
+{
+	switch ((Get_PLD_SDRAM() >> 4) & 0x0F) {
+		case 0: return 4;
+		case 1: return 1;
+		case 2: return 2;
+		default: return 0;
+	}
+}
+
+static ulong Get_SDRAM_ChipSize(void)
+{
+	switch (Get_PLD_SDRAM() & 0x0F) {
+		case 0: return 16 * (1024*1024);
+		case 1: return 32 * (1024*1024);
+		case 2: return  8 * (1024*1024);
+		case 3: return  8 * (1024*1024);
+		default: return 0;
+	}	
+}
+static const char * Get_SDRAM_ChipGeom(void)
+{
+	switch (Get_PLD_SDRAM() & 0x0F) {
+		case 0: return "4Mx8x4";
+		case 1: return "8Mx8x4";
+		case 2: return "2Mx8x4";
+		case 3: return "4Mx8x2";
+		default: return "unknown";
+	}
+}
+
+static void Show_VCMA9_Info(char *board_name, char *serial)
+{
+	printf("Board: %s SN: %s  PCB Rev: %c PLD(%d,%d)\n",
+		board_name, serial, Get_Board_PCB(), Get_PLD_Version(), Get_PLD_Revision());
+	printf("SDRAM: %d chips %s\n", Get_SDRAM_ChipNr(), Get_SDRAM_ChipGeom());
+}
+
+int dram_init(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = Get_SDRAM_ChipSize() * Get_SDRAM_ChipNr();
+
+	return 0;
+}
+
 /* ------------------------------------------------------------------------- */
 
 /*
@@ -240,8 +293,6 @@ int checkboard(void)
 	int i;
 	backup_t *b = (backup_t *) s;
 
-	puts("Board: ");
-
 	i = getenv_r("serial#", s, 32);
 	if ((i < 0) || strncmp (s, "VCMA9", 5)) {
 		get_backup_values (b);
@@ -249,32 +300,23 @@ int checkboard(void)
 			puts ("### No HW ID - assuming VCMA9");
 		} else {
 			b->serial_name[5] = 0;
-			printf ("%s-%d PCB Rev %c SN: %s", b->serial_name, Get_Board_Config(),
-					Get_Board_PCB(), &b->serial_name[6]);
+			Show_VCMA9_Info(b->serial_name, &b->serial_name[6]);
 		}
 	} else {
 		s[5] = 0;
-		printf ("%s-%d PCB Rev %c SN: %s", s, Get_Board_Config(), Get_Board_PCB(),
-				&s[6]);
+		Show_VCMA9_Info(s, &s[6]);
 	}
-	printf("\n");
+	/*printf("\n");*/
 	return(0);
 }
 
 
-void print_vcma9_rev(void)
-{
-	printf("Board: VCMA9-%d PCB Rev: %c (PLD Ver: %d, Rev: %d)\n",
-		Get_Board_Config(), Get_Board_PCB(),
-		Get_PLD_Version(), Get_PLD_Revision());
-}
-
 extern void mem_test_reloc(void);
 
 int last_stage_init(void)
 {
 	mem_test_reloc();
-	print_vcma9_rev();
+	checkboard();
 	show_stdio_dev();
 	check_env();
 	return 0;
@@ -295,6 +337,15 @@ int overwrite_console(void)
 * Print VCMA9 Info
 ************************************************************************/
 void print_vcma9_info(void)
-{
-    print_vcma9_rev();
+{	
+	unsigned char s[50];
+	int i;
+	
+	if ((i = getenv_r("serial#", s, 32)) < 0) {
+		puts ("### No HW ID - assuming VCMA9");
+		printf("i %d", i*24);
+	} else {
+		s[5] = 0;
+		Show_VCMA9_Info(s, &s[6]);
+	}
 }
diff --git a/board/mpl/vcma9/vcma9.h b/board/mpl/vcma9/vcma9.h
index 068eb21..c0167d5 100644
--- a/board/mpl/vcma9/vcma9.h
+++ b/board/mpl/vcma9/vcma9.h
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2002
+ * (C) Copyright 2002, 2003
  * David Mueller, ELSOFT AG, d.mueller@elsoft.ch
  *
  * See file CREDITS for list of people who contributed to this
@@ -116,11 +116,19 @@ static inline u32 NF_Read_ECC(void)
 
 #endif
 
-
-#define PLD_BASE_ADDRESS		0x2C000100
-#define PLD_ID_REG			(PLD_BASE_ADDRESS + 0)
-#define PLD_NIC_REG			(PLD_BASE_ADDRESS + 1)
-#define PLD_CAN_REG			(PLD_BASE_ADDRESS + 2)
-#define PLD_MISC_REG			(PLD_BASE_ADDRESS + 3)
-#define PLD_GPCD_REG			(PLD_BASE_ADDRESS + 4)
-#define PLD_BOARD_REG			(PLD_BASE_ADDRESS + 5)
+/* VCMA9 PLD regsiters */
+typedef struct {
+	S3C24X0_REG8	ID;
+	S3C24X0_REG8	NIC;
+	S3C24X0_REG8	CAN;
+	S3C24X0_REG8	MISC;
+	S3C24X0_REG8	GPCD;
+	S3C24X0_REG8	BOARD;
+	S3C24X0_REG8	SDRAM;
+} /*__attribute__((__packed__))*/ VCMA9_PLD;
+
+#define VCMA9_PLD_BASE	0x2C000100
+static inline VCMA9_PLD * const VCMA9_GetBase_PLD(void)
+{
+	return (VCMA9_PLD * const)VCMA9_PLD_BASE;
+}
-- 
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