* Patches by David Müller, 31 Jan 2003:LABEL_2003_03_06_2255

  - minimal setup for CardBus bridges
  - add EEPROM read/write support in the CS8900 driver
  - add support for the builtin I2C controller in the Samsung s3c24x0 chips
  - add support for  MPL's VCMA9 (Samsung s3c2410 based) board

* Patch by Steven Scholz, 04 Feb 2003:
  add support for RTC DS1307

* Patch by Reinhard Meyer, 5 Feb 2003:
  fix PLPRCR/SCCR init sequence on 8xx to allow for
  changes of EBDF by software

* Patch by Vladimir Gurevich, 07 Feb 2003:
  "API-compatibility patch" for 4xx I2C driver

3 files changed, 115 insertions, 28 deletions

diff --git a/board/trab/flash.c b/board/trab/flash.c
index a4f164b469b..d86c4bf7706 100644
--- a/board/trab/flash.c
+++ b/board/trab/flash.c
@@ -124,11 +124,10 @@ void flash_print_info (flash_info_t * info)
 
 	switch (info->flash_id & FLASH_VENDMASK) {
 	case (FLASH_MAN_AMD & FLASH_VENDMASK):
-		printf ("AMD: ");
-		break;
-	default:
-		printf ("Unknown Vendor ");
-		break;
+			printf ("AMD ");		break;
+	case (FLASH_MAN_FUJ & FLASH_VENDMASK):
+			printf ("FUJITSU ");		break;
+	default:	printf ("Unknown Vendor ");	break;
 	}
 
 	switch (info->flash_id & FLASH_TYPEMASK) {
@@ -477,7 +476,9 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 	case AMD_MANUFACT:
 		info->flash_id = FLASH_MAN_AMD;
 		break;
-
+	case FUJ_MANUFACT:
+		info->flash_id = FLASH_MAN_FUJ;
+		break;
 	default:
 		info->flash_id = FLASH_UNKNOWN;
 		info->sector_count = 0;
diff --git a/board/trab/trab.c b/board/trab/trab.c
index 111c861410b..e3e8553eb79 100644
--- a/board/trab/trab.c
+++ b/board/trab/trab.c
@@ -30,6 +30,13 @@
 
 /* ------------------------------------------------------------------------- */
 
+#ifdef CFG_BRIGHTNESS
+static void spi_init(void);
+static void wait_transmit_done(void);
+static void tsc2000_write(unsigned int page, unsigned int reg, 
+						  unsigned int data);
+static void tsc2000_set_brightness(void);
+#endif
 #ifdef CONFIG_MODEM_SUPPORT
 static int key_pressed(void);
 extern void disable_putc(void);
@@ -104,6 +111,10 @@ int board_init ()
 	/* adress of boot parameters */
 	gd->bd->bi_boot_params = 0x0c000100;
 
+	/* Make sure both buzzers are turned off */
+	rPDCON |= 0x5400;
+	rPDDAT &= ~0xE0;
+
 #ifdef CONFIG_VFD
 	vfd_init_clocks();
 #endif /* CONFIG_VFD */
@@ -164,6 +175,9 @@ int misc_init_r (void)
 		free (str);
 	}
 
+#ifdef CFG_BRIGHTNESS
+	tsc2000_set_brightness();
+#endif
 	return (0);
 }
 
@@ -288,3 +302,74 @@ static int key_pressed(void)
 	return (compare_magic(KBD_DATA, CONFIG_MODEM_KEY_MAGIC) == 0);
 }
 #endif	/* CONFIG_MODEM_SUPPORT */
+
+#ifdef CFG_BRIGHTNESS
+
+#define SET_CS_TOUCH        (rPDDAT &= 0x5FF)
+#define CLR_CS_TOUCH        (rPDDAT |= 0x200)
+
+static void spi_init(void)
+{
+	int i;
+
+	/* Configure I/O ports. */
+ 	rPDCON = (rPDCON & 0xF3FFFF) | 0x040000;
+	rPGCON = (rPGCON & 0x0F3FFF) | 0x008000;
+	rPGCON = (rPGCON & 0x0CFFFF) | 0x020000;
+	rPGCON = (rPGCON & 0x03FFFF) | 0x080000;
+
+	CLR_CS_TOUCH;
+
+	rSPPRE = 0x1F; /* Baudrate ca. 514kHz */
+	rSPPIN = 0x01;  /* SPI-MOSI holds Level after last bit */
+	rSPCON = 0x1A;  /* Polling, Prescaler, Master, CPOL=0, CPHA=1 */
+
+	/* Dummy byte ensures clock to be low. */
+	for (i = 0; i < 10; i++) {
+		rSPTDAT = 0xFF;
+	}
+}
+
+static void wait_transmit_done(void)
+{
+	while (!(rSPSTA & 0x01)); /* wait until transfer is done */
+}
+
+static void tsc2000_write(unsigned int page, unsigned int reg, 
+						  unsigned int data)
+{
+	unsigned int command;
+
+	SET_CS_TOUCH;
+	command = 0x0000;
+	command |= (page << 11);
+	command |= (reg << 5);
+
+	rSPTDAT = (command & 0xFF00) >> 8;
+	wait_transmit_done();
+	rSPTDAT = (command & 0x00FF);
+	wait_transmit_done();
+	rSPTDAT = (data & 0xFF00) >> 8;
+	wait_transmit_done();
+	rSPTDAT = (data & 0x00FF);
+	wait_transmit_done();
+
+	CLR_CS_TOUCH;
+}
+
+static void tsc2000_set_brightness(void)
+{
+	uchar tmp[10];
+	int i, br;
+
+	spi_init();
+	tsc2000_write(1, 2, 0x0); /* Power up DAC */
+
+	i = getenv_r("brightness", tmp, sizeof(tmp));
+	br = (i > 0)
+		? (int) simple_strtoul (tmp, NULL, 10)
+		: CFG_BRIGHTNESS;
+
+	tsc2000_write(0, 0xb, br & 0xff);
+}
+#endif
diff --git a/board/trab/vfd.c b/board/trab/vfd.c
index fa1194ca7fb..5e601ef7947 100644
--- a/board/trab/vfd.c
+++ b/board/trab/vfd.c
@@ -55,7 +55,6 @@
 #define BLAU	0x0C
 #define VIOLETT	0X0D
 
-ulong	vfdbase;
 ulong	frame_buf_size;
 #define frame_buf_offs 4
 
@@ -86,7 +85,7 @@ void init_grid_ctrl(void)
 	else
 		val = ~0;
 
-	for (adr = vfdbase; adr <= (vfdbase+7168); adr += 4) {
+	for (adr = gd->fb_base; adr <= (gd->fb_base+7168); adr += 4) {
 		(*(volatile ulong*)(adr)) = val;
 	}
 
@@ -100,7 +99,7 @@ void init_grid_ctrl(void)
  			/* wrap arround if offset (see manual S3C2400) */
 			if (bit>=frame_buf_size*8)
 				bit = bit - (frame_buf_size * 8);
-			adr = vfdbase + (bit/32) * 4 + (3 - (bit%32) / 8);
+			adr = gd->fb_base + (bit/32) * 4 + (3 - (bit%32) / 8);
 			bit_nr = bit % 8;
 			bit_nr = (bit_nr > 3) ? bit_nr-4 : bit_nr+4;
 			temp=(*(volatile unsigned char*)(adr));
@@ -117,7 +116,7 @@ void init_grid_ctrl(void)
 			/* wrap arround if offset (see manual S3C2400) */
 			if (bit>=frame_buf_size*8)
 				bit = bit-(frame_buf_size*8);
-			adr = vfdbase+(bit/32)*4+(3-(bit%32)/8);
+			adr = gd->fb_base+(bit/32)*4+(3-(bit%32)/8);
 			bit_nr = bit%8;
 			bit_nr = (bit_nr>3)?bit_nr-4:bit_nr+4;
 			temp=(*(volatile unsigned char*)(adr));
@@ -138,7 +137,7 @@ void init_grid_ctrl(void)
 			/* wrap arround if offset (see manual S3C2400) */
 			if (bit>=frame_buf_size*8)
 				bit = bit - (frame_buf_size * 8);
-			adr = vfdbase + (bit/32) * 4 + (3 - (bit%32) / 8);
+			adr = gd->fb_base + (bit/32) * 4 + (3 - (bit%32) / 8);
 			bit_nr = bit % 8;
 			bit_nr = (bit_nr > 3) ? bit_nr-4 : bit_nr+4;
 			temp=(*(volatile unsigned char*)(adr));
@@ -154,7 +153,7 @@ void init_grid_ctrl(void)
 			/* wrap arround if offset (see manual S3C2400) */
 			if (bit>=frame_buf_size*8)
 				bit = bit-(frame_buf_size*8);
-			adr = vfdbase+(bit/32)*4+(3-(bit%32)/8);
+			adr = gd->fb_base+(bit/32)*4+(3-(bit%32)/8);
 			bit_nr = bit%8;
 			bit_nr = (bit_nr>3)?bit_nr-4:bit_nr+4;
 			temp=(*(volatile unsigned char*)(adr));
@@ -254,7 +253,7 @@ void create_vfd_table(void)
 		for(color=0;color<2;color++) {
 		    for(display=0;display<4;display++) {
 			for(entry=0;entry<2;entry++) {
-			    unsigned long adr  = vfdbase;
+			    unsigned long adr  = gd->fb_base;
 			    unsigned int bit_nr = 0;
 			    
 			    if (vfd_table[x][y][color][display][entry]) {
@@ -266,7 +265,7 @@ void create_vfd_table(void)
 				  */
 				if (pixel>=frame_buf_size*8)
 					pixel = pixel-(frame_buf_size*8);
-				adr    = vfdbase+(pixel/32)*4+(3-(pixel%32)/8);
+				adr    = gd->fb_base+(pixel/32)*4+(3-(pixel%32)/8);
 				bit_nr = pixel%8;
 				bit_nr = (bit_nr>3)?bit_nr-4:bit_nr+4;
 			    }
@@ -375,7 +374,7 @@ int vfd_init_clocks(void)
 	rPCCON =   (rPCCON & 0xFFFFFF00)| 0x000000AA;
 	/* Port-Pins als LCD-Ausgang */
 	rPDCON =   (rPDCON & 0xFFFFFF03)| 0x000000A8;
-#ifdef WITH_VFRAME
+#ifdef CFG_WITH_VFRAME
 	/* mit VFRAME zum Messen */
 	rPDCON =   (rPDCON & 0xFFFFFF00)| 0x000000AA;
 #endif
@@ -385,10 +384,18 @@ int vfd_init_clocks(void)
 	rLCDCON4 = 0x00000001;
 	rLCDCON5 = 0x00000440;
 	rLCDCON1 = 0x00000B75;
+
+	return 0;
 }
 
 /*
  * initialize LCD-Controller of the S3C2400 for using VFDs
+ *
+ * VFD detection depends on the board revision:
+ * starting from Rev. 200 a type code can be read from the data pins,
+ * driven by some pull-up resistors; all earlier systems must be
+ * manually configured. The type is set in the "vfd_type" environment
+ * variable.
  */
 int drv_vfd_init(void)
 {
@@ -406,21 +413,15 @@ int drv_vfd_init(void)
 	/* try to determine display type from the value
 	 * defined by pull-ups
 	 */
-	rPCUP  = (rPCUP | 0x000F);	/* activate  GPC0...GPC3 pullups */
+	rPCUP  = (rPCUP & 0xFFF0);	/* activate  GPC0...GPC3 pullups */
 	rPCCON = (rPCCON & 0xFFFFFF00);	/* configure GPC0...GPC3 as inputs */
+	udelay(10);			/* allow signals to settle */
 
 	vfd_id = (~rPCDAT) & 0x000F;	/* read GPC0...GPC3 port pins */
 	debug("Detecting Revison of WA4-VFD: ID=0x%X\n", vfd_id);
 
 	switch (vfd_id) {
-	case 0:				/* board revision <= Rev.100 */
-/*-----*/
-		gd->vfd_inv_data = 0;
-		if (0)
-			gd->vfd_type = VFD_TYPE_MN11236;
-		else
-			gd->vfd_type = VFD_TYPE_T119C;
-/*-----*/
+	case 0:			/* board revision < Rev.200 */
 		if ((tmp = getenv ("vfd_type")) == NULL) {
 			break;
 		}
@@ -435,7 +436,7 @@ int drv_vfd_init(void)
 		gd->vfd_inv_data = 0;
 
 		break;
-	default:			/* default to MN11236, data inverted */
+	default:		/* default to MN11236, data inverted */
 		gd->vfd_type = VFD_TYPE_MN11236;
 		gd->vfd_inv_data = 1;
 		setenv ("vfd_type", "MN11236");
@@ -446,7 +447,7 @@ int drv_vfd_init(void)
 		"unknown",
 		gd->vfd_inv_data ? ", inverted data" : "");
 
-	vfdbase = gd->fb_base;
+	gd->fb_base = gd->fb_base;
 	create_vfd_table();
 	init_grid_ctrl();
 
@@ -463,9 +464,9 @@ int drv_vfd_init(void)
 	 * see manual S3C2400
 	 */
 	/* frame buffer startadr */
-	rLCDSADDR1 = vfdbase >> 1;
+	rLCDSADDR1 = gd->fb_base >> 1;
  	/* frame buffer endadr */
-	rLCDSADDR2 = (vfdbase + frame_buf_size) >> 1;
+	rLCDSADDR2 = (gd->fb_base + frame_buf_size) >> 1;
 	rLCDSADDR3 = ((256/4));
 
 	debug ("LCDSADDR1: %lX\n", rLCDSADDR1);