board/samsung/common/misc.c - github/trini/u-boot - Gitiles

 /*
  * Copyright (C) 2013 Samsung Electronics
  * Przemyslaw Marczak <p.marczak@samsung.com>
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

 #include <common.h>
 #include <lcd.h>
 #include <libtizen.h>
 #include <samsung/misc.h>
 #include <errno.h>
 #include <version.h>
 #include <malloc.h>
 #include <memalign.h>
 #include <linux/sizes.h>
 #include <asm/arch/cpu.h>
 #include <asm/gpio.h>
 #include <linux/input.h>
 #include <dm.h>
 #include <power/pmic.h>
 #include <mmc.h>

 DECLARE_GLOBAL_DATA_PTR;

 #ifdef CONFIG_SET_DFU_ALT_INFO
 void set_dfu_alt_info(char *interface, char *devstr)
 {
 	size_t buf_size = CONFIG_SET_DFU_ALT_BUF_LEN;
 	ALLOC_CACHE_ALIGN_BUFFER(char, buf, buf_size);
 	char *alt_info = "Settings not found!";
 	char *status = "error!\n";
 	char *alt_setting;
 	char *alt_sep;
 	int offset = 0;

 	puts("DFU alt info setting: ");

 	alt_setting = get_dfu_alt_boot(interface, devstr);
 	if (alt_setting) {
 		setenv("dfu_alt_boot", alt_setting);
 		offset = snprintf(buf, buf_size, "%s", alt_setting);
 	}

 	alt_setting = get_dfu_alt_system(interface, devstr);
 	if (alt_setting) {
 		if (offset)
 			alt_sep = ";";
 		else
 			alt_sep = "";

 		offset += snprintf(buf + offset, buf_size - offset,
 				    "%s%s", alt_sep, alt_setting);
 	}

 	if (offset) {
 		alt_info = buf;
 		status = "done\n";
 	}

 	setenv("dfu_alt_info", alt_info);
 	puts(status);
 }
 #endif

 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 void set_board_info(void)
 {
 	char info[64];

 	snprintf(info, ARRAY_SIZE(info), "%u.%u", (s5p_cpu_rev & 0xf0) >> 4,
 		 s5p_cpu_rev & 0xf);
 	setenv("soc_rev", info);

 	snprintf(info, ARRAY_SIZE(info), "%x", s5p_cpu_id);
 	setenv("soc_id", info);

 #ifdef CONFIG_REVISION_TAG
 	snprintf(info, ARRAY_SIZE(info), "%x", get_board_rev());
 	setenv("board_rev", info);
 #endif
 #ifdef CONFIG_OF_LIBFDT
 	const char *bdtype = "";
 	const char *bdname = CONFIG_SYS_BOARD;

 #ifdef CONFIG_BOARD_TYPES
 	bdtype = get_board_type();
 	if (!bdtype)
 		bdtype = "";

 	sprintf(info, "%s%s", bdname, bdtype);
 	setenv("boardname", info);
 #endif
 	snprintf(info, ARRAY_SIZE(info),  "%s%x-%s%s.dtb",
 		 CONFIG_SYS_SOC, s5p_cpu_id, bdname, bdtype);
 	setenv("fdtfile", info);
 #endif
 }
 #endif /* CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG */

 #ifdef CONFIG_LCD_MENU
 static int power_key_pressed(u32 reg)
 {
 	struct pmic *pmic;
 	u32 status;
 	u32 mask;

 	pmic = pmic_get(KEY_PWR_PMIC_NAME);
 	if (!pmic) {
 		printf("%s: Not found\n", KEY_PWR_PMIC_NAME);
 		return 0;
 	}

 	if (pmic_probe(pmic))
 		return 0;

 	if (reg == KEY_PWR_STATUS_REG)
 		mask = KEY_PWR_STATUS_MASK;
 	else
 		mask = KEY_PWR_INTERRUPT_MASK;

 	if (pmic_reg_read(pmic, reg, &status))
 		return 0;

 	return !!(status & mask);
 }

 static int key_pressed(int key)
 {
 	int value;

 	switch (key) {
 	case KEY_POWER:
 		value = power_key_pressed(KEY_PWR_INTERRUPT_REG);
 		break;
 	case KEY_VOLUMEUP:
 		value = !gpio_get_value(KEY_VOL_UP_GPIO);
 		break;
 	case KEY_VOLUMEDOWN:
 		value = !gpio_get_value(KEY_VOL_DOWN_GPIO);
 		break;
 	default:
 		value = 0;
 		break;
 	}

 	return value;
 }

 static int check_keys(void)
 {
 	int keys = 0;

 	if (key_pressed(KEY_POWER))
 		keys += KEY_POWER;
 	if (key_pressed(KEY_VOLUMEUP))
 		keys += KEY_VOLUMEUP;
 	if (key_pressed(KEY_VOLUMEDOWN))
 		keys += KEY_VOLUMEDOWN;

 	return keys;
 }

 /*
  * 0 BOOT_MODE_INFO
  * 1 BOOT_MODE_THOR
  * 2 BOOT_MODE_UMS
  * 3 BOOT_MODE_DFU
  * 4 BOOT_MODE_EXIT
  */
 static char *
 mode_name[BOOT_MODE_EXIT + 1][2] = {
 	{"DEVICE", ""},
 	{"THOR", "thor"},
 	{"UMS", "ums"},
 	{"DFU", "dfu"},
 	{"GPT", "gpt"},
 	{"ENV", "env"},
 	{"EXIT", ""},
 };

 static char *
 mode_info[BOOT_MODE_EXIT + 1] = {
 	"info",
 	"downloader",
 	"mass storage",
 	"firmware update",
 	"restore",
 	"default",
 	"and run normal boot"
 };

 static char *
 mode_cmd[BOOT_MODE_EXIT + 1] = {
 	"",
 	"thor 0 mmc 0",
 	"ums 0 mmc 0",
 	"dfu 0 mmc 0",
 	"gpt write mmc 0 $partitions",
 	"env default -a; saveenv",
 	"",
 };

 static void display_board_info(void)
 {
 #ifdef CONFIG_GENERIC_MMC
 	struct mmc *mmc = find_mmc_device(0);
 #endif
 	vidinfo_t *vid = &panel_info;

 	lcd_position_cursor(4, 4);

 	lcd_printf("%s\n\t", U_BOOT_VERSION);
 	lcd_puts("\n\t\tBoard Info:\n");
 #ifdef CONFIG_SYS_BOARD
 	lcd_printf("\tBoard name: %s\n", CONFIG_SYS_BOARD);
 #endif
 #ifdef CONFIG_REVISION_TAG
 	lcd_printf("\tBoard rev: %u\n", get_board_rev());
 #endif
 	lcd_printf("\tDRAM banks: %u\n", CONFIG_NR_DRAM_BANKS);
 	lcd_printf("\tDRAM size: %u MB\n", gd->ram_size / SZ_1M);

 #ifdef CONFIG_GENERIC_MMC
 	if (mmc) {
 		if (!mmc->capacity)
 			mmc_init(mmc);

 		lcd_printf("\teMMC size: %llu MB\n", mmc->capacity / SZ_1M);
 	}
 #endif
 	if (vid)
 		lcd_printf("\tDisplay resolution: %u x % u\n",
 			   vid->vl_col, vid->vl_row);

 	lcd_printf("\tDisplay BPP: %u\n", 1 << vid->vl_bpix);
 }

 static int mode_leave_menu(int mode)
 {
 	char *exit_option;
 	char *exit_reset = "reset";
 	char *exit_back = "back";
 	cmd_tbl_t *cmd;
 	int cmd_result;
 	int leave;

 	lcd_clear();

 	switch (mode) {
 	case BOOT_MODE_EXIT:
 		return 1;
 	case BOOT_MODE_INFO:
 		display_board_info();
 		exit_option = exit_back;
 		leave = 0;
 		break;
 	default:
 		cmd = find_cmd(mode_name[mode][1]);
 		if (cmd) {
 			printf("Enter: %s %s\n", mode_name[mode][0],
 			       mode_info[mode]);
 			lcd_printf("\n\n\t%s %s\n", mode_name[mode][0],
 				   mode_info[mode]);
 			lcd_puts("\n\tDo not turn off device before finish!\n");

 			cmd_result = run_command(mode_cmd[mode], 0);

 			if (cmd_result == CMD_RET_SUCCESS) {
 				printf("Command finished\n");
 				lcd_clear();
 				lcd_printf("\n\n\t%s finished\n",
 					   mode_name[mode][0]);

 				exit_option = exit_reset;
 				leave = 1;
 			} else {
 				printf("Command error\n");
 				lcd_clear();
 				lcd_printf("\n\n\t%s command error\n",
 					   mode_name[mode][0]);

 				exit_option = exit_back;
 				leave = 0;
 			}
 		} else {
 			lcd_puts("\n\n\tThis mode is not supported.\n");
 			exit_option = exit_back;
 			leave = 0;
 		}
 	}

 	lcd_printf("\n\n\tPress POWER KEY to %s\n", exit_option);

 	/* Clear PWR button Rising edge interrupt status flag */
 	power_key_pressed(KEY_PWR_INTERRUPT_REG);

 	/* Wait for PWR key */
 	while (!key_pressed(KEY_POWER))
 		mdelay(1);

 	lcd_clear();
 	return leave;
 }

 static void display_download_menu(int mode)
 {
 	char *selection[BOOT_MODE_EXIT + 1];
 	int i;

 	for (i = 0; i <= BOOT_MODE_EXIT; i++)
 		selection[i] = "[  ]";

 	selection[mode] = "[=>]";

 	lcd_clear();
 	lcd_printf("\n\n\t\tDownload Mode Menu\n\n");

 	for (i = 0; i <= BOOT_MODE_EXIT; i++)
 		lcd_printf("\t%s  %s - %s\n\n", selection[i],
 			   mode_name[i][0], mode_info[i]);
 }

 static void download_menu(void)
 {
 	int mode = 0;
 	int last_mode = 0;
 	int run;
 	int key = 0;
 	int timeout = 15; /* sec */
 	int i;

 	display_download_menu(mode);

 	lcd_puts("\n");

 	/* Start count if no key is pressed */
 	while (check_keys())
 		continue;

 	while (timeout--) {
 		lcd_printf("\r\tNormal boot will start in: %2.d seconds.",
 			   timeout);

 		/* about 1000 ms in for loop */
 		for (i = 0; i < 10; i++) {
 			mdelay(100);
 			key = check_keys();
 			if (key)
 				break;
 		}
 		if (key)
 			break;
 	}

 	if (!key) {
 		lcd_clear();
 		return;
 	}

 	while (1) {
 		run = 0;

 		if (mode != last_mode)
 			display_download_menu(mode);

 		last_mode = mode;
 		mdelay(200);

 		key = check_keys();
 		switch (key) {
 		case KEY_POWER:
 			run = 1;
 			break;
 		case KEY_VOLUMEUP:
 			if (mode > 0)
 				mode--;
 			break;
 		case KEY_VOLUMEDOWN:
 			if (mode < BOOT_MODE_EXIT)
 				mode++;
 			break;
 		default:
 			break;
 		}

 		if (run) {
 			if (mode_leave_menu(mode))
 				run_command("reset", 0);

 			display_download_menu(mode);
 		}
 	}

 	lcd_clear();
 }

 void check_boot_mode(void)
 {
 	int pwr_key;

 	pwr_key = power_key_pressed(KEY_PWR_STATUS_REG);
 	if (!pwr_key)
 		return;

 	/* Clear PWR button Rising edge interrupt status flag */
 	power_key_pressed(KEY_PWR_INTERRUPT_REG);

 	if (key_pressed(KEY_VOLUMEUP))
 		download_menu();
 	else if (key_pressed(KEY_VOLUMEDOWN))
 		mode_leave_menu(BOOT_MODE_THOR);
 }

 void keys_init(void)
 {
 	/* Set direction to input */
 	gpio_request(KEY_VOL_UP_GPIO, "volume-up");
 	gpio_request(KEY_VOL_DOWN_GPIO, "volume-down");
 	gpio_direction_input(KEY_VOL_UP_GPIO);
 	gpio_direction_input(KEY_VOL_DOWN_GPIO);
 }
 #endif /* CONFIG_LCD_MENU */

 #ifdef CONFIG_CMD_BMP
 void draw_logo(void)
 {
 	int x, y;
 	ulong addr;

 	addr = panel_info.logo_addr;
 	if (!addr) {
 		error("There is no logo data.");
 		return;
 	}

 	if (panel_info.vl_width >= panel_info.logo_width) {
 		x = ((panel_info.vl_width - panel_info.logo_width) >> 1);
 		x += panel_info.logo_x_offset; /* For X center align */
 	} else {
 		x = 0;
 		printf("Warning: image width is bigger than display width\n");
 	}

 	if (panel_info.vl_height >= panel_info.logo_height) {
 		y = ((panel_info.vl_height - panel_info.logo_height) >> 1);
 		y += panel_info.logo_y_offset; /* For Y center align */
 	} else {
 		y = 0;
 		printf("Warning: image height is bigger than display height\n");
 	}

 	bmp_display(addr, x, y);
 }
 #endif /* CONFIG_CMD_BMP */
	/*
	* Copyright (C) 2013 Samsung Electronics
	* Przemyslaw Marczak <p.marczak@samsung.com>
	*
	* SPDX-License-Identifier: GPL-2.0+
	*/

	#include <common.h>
	#include <lcd.h>
	#include <libtizen.h>
	#include <samsung/misc.h>
	#include <errno.h>
	#include <version.h>
	#include <malloc.h>
	#include <memalign.h>
	#include <linux/sizes.h>
	#include <asm/arch/cpu.h>
	#include <asm/gpio.h>
	#include <linux/input.h>
	#include <dm.h>
	#include <power/pmic.h>
	#include <mmc.h>

	DECLARE_GLOBAL_DATA_PTR;

	#ifdef CONFIG_SET_DFU_ALT_INFO
	void set_dfu_alt_info(char interface, char devstr)
	{
	size_t buf_size = CONFIG_SET_DFU_ALT_BUF_LEN;
	ALLOC_CACHE_ALIGN_BUFFER(char, buf, buf_size);
	char *alt_info = "Settings not found!";
	char *status = "error!\n";
	char *alt_setting;
	char *alt_sep;
	int offset = 0;

	puts("DFU alt info setting: ");

	alt_setting = get_dfu_alt_boot(interface, devstr);
	if (alt_setting) {
	setenv("dfu_alt_boot", alt_setting);
	offset = snprintf(buf, buf_size, "%s", alt_setting);
	}

	alt_setting = get_dfu_alt_system(interface, devstr);
	if (alt_setting) {
	if (offset)
	alt_sep = ";";
	else
	alt_sep = "";

	offset += snprintf(buf + offset, buf_size - offset,
	"%s%s", alt_sep, alt_setting);
	}

	if (offset) {
	alt_info = buf;
	status = "done\n";
	}

	setenv("dfu_alt_info", alt_info);
	puts(status);
	}
	#endif

	#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
	void set_board_info(void)
	{
	char info[64];

	snprintf(info, ARRAY_SIZE(info), "%u.%u", (s5p_cpu_rev & 0xf0) >> 4,
	s5p_cpu_rev & 0xf);
	setenv("soc_rev", info);

	snprintf(info, ARRAY_SIZE(info), "%x", s5p_cpu_id);
	setenv("soc_id", info);

	#ifdef CONFIG_REVISION_TAG
	snprintf(info, ARRAY_SIZE(info), "%x", get_board_rev());
	setenv("board_rev", info);
	#endif
	#ifdef CONFIG_OF_LIBFDT
	const char *bdtype = "";
	const char *bdname = CONFIG_SYS_BOARD;

	#ifdef CONFIG_BOARD_TYPES
	bdtype = get_board_type();
	if (!bdtype)
	bdtype = "";

	sprintf(info, "%s%s", bdname, bdtype);
	setenv("boardname", info);
	#endif
	snprintf(info, ARRAY_SIZE(info), "%s%x-%s%s.dtb",
	CONFIG_SYS_SOC, s5p_cpu_id, bdname, bdtype);
	setenv("fdtfile", info);
	#endif
	}
	#endif /* CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG */

	#ifdef CONFIG_LCD_MENU
	static int power_key_pressed(u32 reg)
	{
	struct pmic *pmic;
	u32 status;
	u32 mask;

	pmic = pmic_get(KEY_PWR_PMIC_NAME);
	if (!pmic) {
	printf("%s: Not found\n", KEY_PWR_PMIC_NAME);
	return 0;
	}

	if (pmic_probe(pmic))
	return 0;

	if (reg == KEY_PWR_STATUS_REG)
	mask = KEY_PWR_STATUS_MASK;
	else
	mask = KEY_PWR_INTERRUPT_MASK;

	if (pmic_reg_read(pmic, reg, &status))
	return 0;

	return !!(status & mask);
	}

	static int key_pressed(int key)
	{
	int value;

	switch (key) {
	case KEY_POWER:
	value = power_key_pressed(KEY_PWR_INTERRUPT_REG);
	break;
	case KEY_VOLUMEUP:
	value = !gpio_get_value(KEY_VOL_UP_GPIO);
	break;
	case KEY_VOLUMEDOWN:
	value = !gpio_get_value(KEY_VOL_DOWN_GPIO);
	break;
	default:
	value = 0;
	break;
	}

	return value;
	}

	static int check_keys(void)
	{
	int keys = 0;

	if (key_pressed(KEY_POWER))
	keys += KEY_POWER;
	if (key_pressed(KEY_VOLUMEUP))
	keys += KEY_VOLUMEUP;
	if (key_pressed(KEY_VOLUMEDOWN))
	keys += KEY_VOLUMEDOWN;

	return keys;
	}

	/*
	* 0 BOOT_MODE_INFO
	* 1 BOOT_MODE_THOR
	* 2 BOOT_MODE_UMS
	* 3 BOOT_MODE_DFU
	* 4 BOOT_MODE_EXIT
	*/
	static char *
	mode_name[BOOT_MODE_EXIT + 1][2] = {
	{"DEVICE", ""},
	{"THOR", "thor"},
	{"UMS", "ums"},
	{"DFU", "dfu"},
	{"GPT", "gpt"},
	{"ENV", "env"},
	{"EXIT", ""},
	};

	static char *
	mode_info[BOOT_MODE_EXIT + 1] = {
	"info",
	"downloader",
	"mass storage",
	"firmware update",
	"restore",
	"default",
	"and run normal boot"
	};

	static char *
	mode_cmd[BOOT_MODE_EXIT + 1] = {
	"",
	"thor 0 mmc 0",
	"ums 0 mmc 0",
	"dfu 0 mmc 0",
	"gpt write mmc 0 $partitions",
	"env default -a; saveenv",
	"",
	};

	static void display_board_info(void)
	{
	#ifdef CONFIG_GENERIC_MMC
	struct mmc *mmc = find_mmc_device(0);
	#endif
	vidinfo_t *vid = &panel_info;

	lcd_position_cursor(4, 4);

	lcd_printf("%s\n\t", U_BOOT_VERSION);
	lcd_puts("\n\t\tBoard Info:\n");
	#ifdef CONFIG_SYS_BOARD
	lcd_printf("\tBoard name: %s\n", CONFIG_SYS_BOARD);
	#endif
	#ifdef CONFIG_REVISION_TAG
	lcd_printf("\tBoard rev: %u\n", get_board_rev());
	#endif
	lcd_printf("\tDRAM banks: %u\n", CONFIG_NR_DRAM_BANKS);
	lcd_printf("\tDRAM size: %u MB\n", gd->ram_size / SZ_1M);

	#ifdef CONFIG_GENERIC_MMC
	if (mmc) {
	if (!mmc->capacity)
	mmc_init(mmc);

	lcd_printf("\teMMC size: %llu MB\n", mmc->capacity / SZ_1M);
	}
	#endif
	if (vid)
	lcd_printf("\tDisplay resolution: %u x % u\n",
	vid->vl_col, vid->vl_row);

	lcd_printf("\tDisplay BPP: %u\n", 1 << vid->vl_bpix);
	}

	static int mode_leave_menu(int mode)
	{
	char *exit_option;
	char *exit_reset = "reset";
	char *exit_back = "back";
	cmd_tbl_t *cmd;
	int cmd_result;
	int leave;

	lcd_clear();

	switch (mode) {
	case BOOT_MODE_EXIT:
	return 1;
	case BOOT_MODE_INFO:
	display_board_info();
	exit_option = exit_back;
	leave = 0;
	break;
	default:
	cmd = find_cmd(mode_name[mode][1]);
	if (cmd) {
	printf("Enter: %s %s\n", mode_name[mode][0],
	mode_info[mode]);
	lcd_printf("\n\n\t%s %s\n", mode_name[mode][0],
	mode_info[mode]);
	lcd_puts("\n\tDo not turn off device before finish!\n");

	cmd_result = run_command(mode_cmd[mode], 0);

	if (cmd_result == CMD_RET_SUCCESS) {
	printf("Command finished\n");
	lcd_clear();
	lcd_printf("\n\n\t%s finished\n",
	mode_name[mode][0]);

	exit_option = exit_reset;
	leave = 1;
	} else {
	printf("Command error\n");
	lcd_clear();
	lcd_printf("\n\n\t%s command error\n",
	mode_name[mode][0]);

	exit_option = exit_back;
	leave = 0;
	}
	} else {
	lcd_puts("\n\n\tThis mode is not supported.\n");
	exit_option = exit_back;
	leave = 0;
	}
	}

	lcd_printf("\n\n\tPress POWER KEY to %s\n", exit_option);

	/* Clear PWR button Rising edge interrupt status flag */
	power_key_pressed(KEY_PWR_INTERRUPT_REG);

	/* Wait for PWR key */
	while (!key_pressed(KEY_POWER))
	mdelay(1);

	lcd_clear();
	return leave;
	}

	static void display_download_menu(int mode)
	{
	char *selection[BOOT_MODE_EXIT + 1];
	int i;

	for (i = 0; i <= BOOT_MODE_EXIT; i++)
	selection[i] = "[ ]";

	selection[mode] = "[=>]";

	lcd_clear();
	lcd_printf("\n\n\t\tDownload Mode Menu\n\n");

	for (i = 0; i <= BOOT_MODE_EXIT; i++)
	lcd_printf("\t%s %s - %s\n\n", selection[i],
	mode_name[i][0], mode_info[i]);
	}

	static void download_menu(void)
	{
	int mode = 0;
	int last_mode = 0;
	int run;
	int key = 0;
	int timeout = 15; /* sec */
	int i;

	display_download_menu(mode);

	lcd_puts("\n");

	/* Start count if no key is pressed */
	while (check_keys())
	continue;

	while (timeout--) {
	lcd_printf("\r\tNormal boot will start in: %2.d seconds.",
	timeout);

	/* about 1000 ms in for loop */
	for (i = 0; i < 10; i++) {
	mdelay(100);
	key = check_keys();
	if (key)
	break;
	}
	if (key)
	break;
	}

	if (!key) {
	lcd_clear();
	return;
	}

	while (1) {
	run = 0;

	if (mode != last_mode)
	display_download_menu(mode);

	last_mode = mode;
	mdelay(200);

	key = check_keys();
	switch (key) {
	case KEY_POWER:
	run = 1;
	break;
	case KEY_VOLUMEUP:
	if (mode > 0)
	mode--;
	break;
	case KEY_VOLUMEDOWN:
	if (mode < BOOT_MODE_EXIT)
	mode++;
	break;
	default:
	break;
	}

	if (run) {
	if (mode_leave_menu(mode))
	run_command("reset", 0);

	display_download_menu(mode);
	}
	}

	lcd_clear();
	}

	void check_boot_mode(void)
	{
	int pwr_key;

	pwr_key = power_key_pressed(KEY_PWR_STATUS_REG);
	if (!pwr_key)
	return;

	/* Clear PWR button Rising edge interrupt status flag */
	power_key_pressed(KEY_PWR_INTERRUPT_REG);

	if (key_pressed(KEY_VOLUMEUP))
	download_menu();
	else if (key_pressed(KEY_VOLUMEDOWN))
	mode_leave_menu(BOOT_MODE_THOR);
	}

	void keys_init(void)
	{
	/* Set direction to input */
	gpio_request(KEY_VOL_UP_GPIO, "volume-up");
	gpio_request(KEY_VOL_DOWN_GPIO, "volume-down");
	gpio_direction_input(KEY_VOL_UP_GPIO);
	gpio_direction_input(KEY_VOL_DOWN_GPIO);
	}
	#endif /* CONFIG_LCD_MENU */

	#ifdef CONFIG_CMD_BMP
	void draw_logo(void)
	{
	int x, y;
	ulong addr;

	addr = panel_info.logo_addr;
	if (!addr) {
	error("There is no logo data.");
	return;
	}

	if (panel_info.vl_width >= panel_info.logo_width) {
	x = ((panel_info.vl_width - panel_info.logo_width) >> 1);
	x += panel_info.logo_x_offset; /* For X center align */
	} else {
	x = 0;
	printf("Warning: image width is bigger than display width\n");
	}

	if (panel_info.vl_height >= panel_info.logo_height) {
	y = ((panel_info.vl_height - panel_info.logo_height) >> 1);
	y += panel_info.logo_y_offset; /* For Y center align */
	} else {
	y = 0;
	printf("Warning: image height is bigger than display height\n");
	}

	bmp_display(addr, x, y);
	}
	#endif /* CONFIG_CMD_BMP */