atmel: common: Add function to display via DM_VIDEO's API

Add a function to display the company's logo and board information
via the API from DM_VIDEO. This function can be shared by other
atmel boards, so locate it in board/atmel/common folder.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/mach-at91/include/mach/at91_common.h

@@ -37,5 +37,6 @@ void redirect_int_from_saic_to_aic(void);
 void configure_2nd_sram_as_l2_cache(void);
 
 int at91_set_ethaddr(int offset);
+int at91_video_show_board_info(void);
 
 #endif /* AT91_COMMON_H */

board/atmel/common/Makefile

@@ -8,4 +8,5 @@
 obj-y += board.o
 ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_I2C_EEPROM) += mac_eeprom.o
+obj-$(CONFIG_DM_VIDEO) += video_display.o
 endif

board/atmel/common/video_display.c

@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2017 Microchip
+ *		      Wenyou Yang <wenyou.yang@microchip.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <atmel_lcd.h>
+#include <dm.h>
+#include <nand.h>
+#include <version.h>
+#include <video.h>
+#include <video_console.h>
+#include <asm/io.h>
+#include <asm/arch/clk.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int at91_video_show_board_info(void)
+{
+	ulong dram_size, nand_size;
+	int i;
+	u32 len = 0;
+	char buf[255];
+	char *corp = "2017 Microchip Technology Inc.\n";
+	char temp[32];
+	struct udevice *dev, *con;
+	const char *s;
+	vidinfo_t logo_info;
+	int ret;
+
+	len += sprintf(&buf[len], "%s\n", U_BOOT_VERSION);
+	memcpy(&buf[len], corp, strlen(corp));
+	len += strlen(corp);
+	len += sprintf(&buf[len], "%s CPU at %s MHz\n", get_cpu_name(),
+			strmhz(temp, get_cpu_clk_rate()));
+
+	dram_size = 0;
+	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
+		dram_size += gd->bd->bi_dram[i].size;
+
+	nand_size = 0;
+#ifdef CONFIG_NAND_ATMEL
+	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
+		nand_size += nand_info[i]->size;
+#endif
+
+	len += sprintf(&buf[len], "%ld MB SDRAM, %ld MB NAND\n",
+		       dram_size >> 20, nand_size >> 20);
+
+	ret = uclass_get_device(UCLASS_VIDEO, 0, &dev);
+	if (ret)
+		return ret;
+
+	microchip_logo_info(&logo_info);
+	ret = video_bmp_display(dev, logo_info.logo_addr,
+				logo_info.logo_x_offset,
+				logo_info.logo_y_offset, false);
+	if (ret)
+		return ret;
+
+	ret = uclass_get_device(UCLASS_VIDEO_CONSOLE, 0, &con);
+	if (ret)
+		return ret;
+
+	vidconsole_position_cursor(con, 0, logo_info.logo_height);
+	for (s = buf, i = 0; i < len; s++, i++)
+		vidconsole_put_char(con, *s);
+
+	return 0;
+}