tt01: add video support

The video setup for the Epson display is provided. Addtionally
some extra info is displayed next to the Linux logo.
Make get_cpu_rev() publicly available (added to sys_proto.h).

Signed-off-by: Helmut Raiger <helmut.raiger@hale.at>

arch/arm/include/asm/arch-mx31/sys_proto.h

@@ -32,4 +32,5 @@ struct mxc_weimcs {
 
 void mxc_setup_weimcs(int cs, const struct mxc_weimcs *weimcs);
 int mxc_mmc_init(bd_t *bis);
+u32 get_cpu_rev(void);
 #endif

board/hale/tt01/tt01.c

@@ -228,3 +228,24 @@ int board_eth_init(bd_t *bis)
 #endif
 	return rc;
 }
+
+#ifdef CONFIG_CONSOLE_EXTRA_INFO
+void video_get_info_str(int line_number, char *info)
+{
+	u32 srev = get_cpu_rev();
+
+	switch (line_number) {
+	case 2:
+		sprintf(info, " CPU  : Freescale i.MX31 rev %d.%d%s at %d MHz",
+			(srev & 0xF0) >> 4, (srev & 0x0F),
+			((srev & 0x8000) ? " unknown" : ""),
+		mxc_get_clock(MXC_ARM_CLK) / 1000000);
+		break;
+	case 3:
+		strcpy(info, " " BOARD_STRING);
+		break;
+	default:
+		info[0] = 0;
+	}
+}
+#endif

include/configs/tt01.h

@@ -185,6 +185,23 @@
 #define CONFIG_GENERIC_MMC
 #define CONFIG_MXC_MMC
 #define CONFIG_MXC_MCI_REGS_BASE       SDHC1_BASE_ADDR
+
+/* video support */
+#define CONFIG_VIDEO
+#define CONFIG_VIDEO_MX3
+#define CONFIG_CFB_CONSOLE
+#define CONFIG_VIDEO_LOGO
+#define CONFIG_VIDEO_SW_CURSOR
+#define CONFIG_CONSOLE_EXTRA_INFO /* display additional board info */
+#define CONFIG_VGA_AS_SINGLE_DEVICE /* display is an output only device */
+/* allow stdin, stdout and stderr variables to redirect output */
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+
+/* allow decompressing max. 4MB */
+#define CONFIG_VIDEO_BMP_GZIP
+/* this is not only used by cfb_console.c for the logo, but also in cmd_bmp.c */
+#define CONFIG_SYS_VIDEO_LOGO_MAX_SIZE (4*1024*1024)
+
 /*
  * Command definition
  */
@@ -201,6 +218,7 @@
  * the NAND_CMD_LOCK_STATUS command, however the NFC of i.MX31 supports
  * a software locking scheme.
  */
+#define CONFIG_CMD_BMP
 
 #define CONFIG_BOOTDELAY	3
 
@@ -208,9 +226,18 @@
  * currently a default setting for booting via script is implemented
  *   set user to login name and serverip to tftp host, define your
  *   boot behaviour in bootscript.loginname
+ *
+ * TT-01 board specific TFT setup (used by drivers/video/mx3fb.c)
+ *
+ *  This set-up is for the L5F30947T04 by Epson, which is
+ *   800x480, 33MHz pixel clock, 60Hz vsync, 31.6kHz hsync
+ *  sync must be set to: DI_D3_DRDY_SHARP_POL | DI_D3_CLK_POL
  */
 #define	CONFIG_EXTRA_ENV_SETTINGS \
-	"bootcmd=dhcp bootscript.$(user); source\0"
+"videomode=epson\0" \
+"epson=video=ctfb:x:800,y:480,depth:16,mode:0,pclk:30076," \
+	"le:215,ri:1,up:32,lo:13,hs:7,vs:10,sync:100663296,vmode:0\0" \
+"bootcmd=dhcp bootscript.$(user); source\0"
 
 #define CONFIG_BOOTP_SERVERIP /* tftp serverip not overruled by dhcp server */
 #define CONFIG_BOOTP_SEND_HOSTNAME /* if env-var 'hostname' is set, send it */