1 files changed, 575 insertions, 0 deletions
diff --git a/board/friendlyarm/nanopi2/board.c b/board/friendlyarm/nanopi2/board.c
new file mode 100644
index 0000000000..68980536ab
--- /dev/null
+++ b/board/friendlyarm/nanopi2/board.c
@@ -0,0 +1,575 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) Guangzhou FriendlyARM Computer Tech. Co., Ltd.
+ * (http://www.friendlyarm.com)
+ */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+#include <fdt_support.h>
+#include <log.h>
+#ifdef CONFIG_PWM_NX
+#include <pwm.h>
+#endif
+#include <asm/io.h>
+
+#include <asm/arch/nexell.h>
+#include <asm/arch/nx_gpio.h>
+#include <asm/arch/display.h>
+#include <asm/arch/display_dev.h>
+
+#include <u-boot/md5.h>
+
+#include <linux/stringify.h>
+
+#include "hwrev.h"
+#include "onewire.h"
+#include "nxp-fb.h"
+
+#include <env_internal.h>	/* for env_save() */
+#include <asm/mach-types.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+enum gpio_group {
+	gpio_a, gpio_b, gpio_c, gpio_d, gpio_e,
+};
+
+#ifdef CONFIG_PWM_NX
+struct pwm_device {
+	int grp;
+	int bit;
+	int io_fn;
+};
+
+static inline void bd_pwm_config_gpio(int ch)
+{
+	struct pwm_device pwm_dev[] = {
+		[0] = { .grp = gpio_d, .bit = 1,  .io_fn = 0 },
+		[1] = { .grp = gpio_c, .bit = 13, .io_fn = 1 },
+		[2] = { .grp = gpio_c, .bit = 14, .io_fn = 1 },
+		[3] = { .grp = gpio_d, .bit = 0,  .io_fn = 0 },
+	};
+
+	int gp = pwm_dev[ch].grp;
+	int io = pwm_dev[ch].bit;
+
+	/* pwm backlight OFF: HIGH, ON: LOW */
+	nx_gpio_set_pad_function(gp, io, pwm_dev[ch].io_fn);
+	nx_gpio_set_output_value(gp, io, 1);
+	nx_gpio_set_output_enable(gp, io, 1);
+}
+#endif
+
+static void bd_backlight_off(void)
+{
+#ifdef CONFIG_S5P4418_ONEWIRE
+	onewire_set_backlight(0);
+
+#elif defined(BACKLIGHT_CH)
+	bd_pwm_config_gpio(BACKLIGHT_CH);
+#endif
+}
+
+static void bd_backlight_on(void)
+{
+#ifdef CONFIG_S5P4418_ONEWIRE
+	onewire_set_backlight(127);
+
+#elif defined(BACKLIGHT_CH)
+	/* pwm backlight ON: HIGH, ON: LOW */
+	pwm_init(BACKLIGHT_CH,
+		 BACKLIGHT_DIV, BACKLIGHT_INV);
+	pwm_config(BACKLIGHT_CH,
+		   TO_DUTY_NS(BACKLIGHT_DUTY, BACKLIGHT_HZ),
+		   TO_PERIOD_NS(BACKLIGHT_HZ));
+#endif
+}
+
+static void bd_lcd_config_gpio(void)
+{
+	int i;
+
+	for (i = 0; i < 28; i++) {
+		nx_gpio_set_pad_function(gpio_a, i, 1);
+		nx_gpio_set_drive_strength(gpio_a, i, 0);
+		nx_gpio_set_pull_mode(gpio_a, i, 2);
+	}
+
+	nx_gpio_set_drive_strength(gpio_a, 0, 1);
+}
+
+/* DEFAULT mmc dev for eMMC boot (dwmmc.2) */
+static int mmc_boot_dev;
+
+int board_mmc_bootdev(void)
+{
+	return mmc_boot_dev;
+}
+
+/* call from common/env_mmc.c */
+int mmc_get_env_dev(void)
+{
+	return mmc_boot_dev;
+}
+
+#ifdef CONFIG_DISPLAY_BOARDINFO
+int checkboard(void)
+{
+	printf("Board: %s\n", get_board_name());
+
+	return 0;
+}
+#endif
+
+int nx_display_fixup_dp(struct nx_display_dev *dp)
+{
+	struct nxp_lcd *lcd = bd_get_lcd();
+	enum lcd_format fmt = bd_get_lcd_format();
+	struct nxp_lcd_timing *timing = &lcd->timing;
+	struct dp_sync_info *sync = &dp->sync;
+	struct dp_plane_info *plane = &dp->planes[0];
+	int i;
+	u32 clk = 800000000;
+	u32 div;
+
+	sync->h_active_len = lcd->width;
+	sync->h_sync_width = timing->h_sw;
+	sync->h_back_porch = timing->h_bp;
+	sync->h_front_porch = timing->h_fp;
+	sync->h_sync_invert = !lcd->polarity.inv_hsync;
+
+	sync->v_active_len = lcd->height;
+	sync->v_sync_width = timing->v_sw;
+	sync->v_back_porch = timing->v_bp;
+	sync->v_front_porch = timing->v_fp;
+	sync->v_sync_invert = !lcd->polarity.inv_vsync;
+
+	/* calculates pixel clock */
+	div  = timing->h_sw + timing->h_bp + timing->h_fp + lcd->width;
+	div *= timing->v_sw + timing->v_bp + timing->v_fp + lcd->height;
+	div *= lcd->freq ? : 60;
+	clk /= div;
+
+	dp->ctrl.clk_div_lv0 = clk;
+	dp->ctrl.clk_inv_lv0 = lcd->polarity.rise_vclk;
+
+	dp->top.screen_width = lcd->width;
+	dp->top.screen_height = lcd->height;
+
+	for (i = 0; i < dp->top.plane_num; i++, plane++) {
+		if (plane->enable) {
+			plane->width = lcd->width;
+			plane->height = lcd->height;
+		}
+	}
+
+	/* initialize display device type */
+	if (fmt == LCD_RGB) {
+		dp->dev_type = DP_DEVICE_RGBLCD;
+
+	} else if (fmt == LCD_HDMI) {
+		struct dp_hdmi_dev *dev = (struct dp_hdmi_dev *)dp->device;
+
+		dp->dev_type = DP_DEVICE_HDMI;
+		if (lcd->width == 1920 && lcd->height == 1080)
+			dev->preset = 1;
+		else
+			dev->preset = 0;
+
+	} else {
+		struct dp_lvds_dev *dev = (struct dp_lvds_dev *)dp->device;
+
+		dp->dev_type = DP_DEVICE_LVDS;
+		dev->lvds_format = (fmt & 0x3);
+	}
+
+	return 0;
+}
+
+/* --------------------------------------------------------------------------
+ * initialize board status.
+ */
+
+#define	MMC_BOOT_CH0		(0)
+#define	MMC_BOOT_CH1		(1 <<  3)
+#define	MMC_BOOT_CH2		(1 << 19)
+
+static void bd_bootdev_init(void)
+{
+	unsigned int rst = readl(PHY_BASEADDR_CLKPWR + SYSRSTCONFIG);
+
+	rst &= (1 << 19) | (1 << 3);
+	if (rst == MMC_BOOT_CH0) {
+		/* mmc dev 1 for SD boot */
+		mmc_boot_dev = 1;
+	}
+}
+
+#ifdef CONFIG_S5P4418_ONEWIRE
+static void bd_onewire_init(void)
+{
+	unsigned char lcd;
+	unsigned short fw_ver;
+
+	onewire_init();
+	onewire_get_info(&lcd, &fw_ver);
+}
+#endif
+
+static void bd_lcd_init(void)
+{
+	struct nxp_lcd *cfg;
+	int id = -1;
+	int ret;
+
+#ifdef CONFIG_S5P4418_ONEWIRE
+	id = onewire_get_lcd_id();
+	/* -1: onwire probe failed
+	 *  0: bad
+	 * >0: identified
+	 */
+#endif
+	ret = bd_setup_lcd_by_id(id);
+	if (id <= 0 || ret != id) {
+		printf("Panel: N/A (%d)\n", id);
+		bd_setup_lcd_by_name("HDMI720P60");
+
+	} else {
+		printf("Panel: %s\n", bd_get_lcd_name());
+
+		cfg = bd_get_lcd();
+		if (cfg->gpio_init)
+			cfg->gpio_init();
+	}
+}
+
+static int mac_read_from_generic_eeprom(u8 *addr)
+{
+	return -1;
+}
+
+static void make_ether_addr(u8 *addr)
+{
+	u32 hash[20];
+
+#define ETHER_MAC_TAG  "ethmac"
+	memset(hash, 0, sizeof(hash));
+	memcpy(hash + 12, ETHER_MAC_TAG, sizeof(ETHER_MAC_TAG));
+
+	hash[4] = readl(PHY_BASEADDR_ECID + 0x00);
+	hash[5] = readl(PHY_BASEADDR_ECID + 0x04);
+	hash[6] = readl(PHY_BASEADDR_ECID + 0x08);
+	hash[7] = readl(PHY_BASEADDR_ECID + 0x0c);
+
+	md5((unsigned char *)&hash[4], 64, (unsigned char *)hash);
+
+	hash[0] ^= hash[2];
+	hash[1] ^= hash[3];
+
+	memcpy(addr, (char *)hash, 6);
+	addr[0] &= 0xfe;	/* clear multicast bit */
+	addr[0] |= 0x02;
+}
+
+static void set_ether_addr(void)
+{
+	unsigned char mac[6];
+	char ethaddr[20];
+	int ret;
+
+	if (env_get("ethaddr"))
+		return;
+
+	ret = mac_read_from_generic_eeprom(mac);
+	if (ret < 0)
+		make_ether_addr(mac);
+
+	sprintf(ethaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
+		mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+	if (!ret)
+		printf("MAC:  [%s]\n", ethaddr);
+
+	env_set("ethaddr", ethaddr);
+}
+
+#ifdef CONFIG_REVISION_TAG
+static void set_board_rev(void)
+{
+	char info[64] = {0, };
+
+	snprintf(info, ARRAY_SIZE(info), "%02x", get_board_rev());
+	env_set("board_rev", info);
+}
+#endif
+
+static void set_dtb_name(void)
+{
+	char info[64] = {0, };
+
+	snprintf(info, ARRAY_SIZE(info),
+		 "s5p4418-nanopi2-rev%02x.dtb", get_board_rev());
+	env_set("dtb_name", info);
+}
+
+static void bd_update_env(void)
+{
+	char *lcdtype = env_get("lcdtype");
+	char *lcddpi = env_get("lcddpi");
+	char *bootargs = env_get("bootargs");
+	const char *name;
+	char *p = NULL;
+	int rootdev = board_mmc_bootdev();
+	int need_save = 0;
+
+#define CMDLINE_LCD		" lcd="
+	char cmdline[CONFIG_SYS_CBSIZE];
+	int n = 1;
+
+	if (rootdev != CONFIG_ROOT_DEV && !env_get("firstboot")) {
+		env_set_ulong("rootdev", rootdev);
+		env_set("firstboot", "0");
+		need_save = 1;
+	}
+
+	if (lcdtype) {
+		/* Setup again as user specified LCD in env */
+		bd_setup_lcd_by_name(lcdtype);
+	}
+
+	name = bd_get_lcd_name();
+
+	if (bootargs)
+		n = strlen(bootargs);	/* isn't 0 for NULL */
+	else
+		cmdline[0] = '\0';
+
+	if ((n + strlen(name) + sizeof(CMDLINE_LCD)) > sizeof(cmdline)) {
+		printf("Error: `bootargs' is too large (%d)\n", n);
+		goto __exit;
+	}
+
+	if (bootargs) {
+		p = strstr(bootargs, CMDLINE_LCD);
+		if (p) {
+			n = (p - bootargs);
+			p += strlen(CMDLINE_LCD);
+		}
+		strncpy(cmdline, bootargs, n);
+	}
+
+	/* add `lcd=NAME,NUMdpi' */
+	strncpy(cmdline + n, CMDLINE_LCD, strlen(CMDLINE_LCD));
+	n += strlen(CMDLINE_LCD);
+
+	strcpy(cmdline + n, name);
+	n += strlen(name);
+
+	if (lcddpi) {
+		n += sprintf(cmdline + n, ",%sdpi", lcddpi);
+	} else {
+		int dpi = bd_get_lcd_density();
+
+		if (dpi > 0 && dpi < 600)
+			n += sprintf(cmdline + n, ",%ddpi", dpi);
+	}
+
+	/* copy remaining of bootargs */
+	if (p) {
+		p = strstr(p, " ");
+		if (p) {
+			strcpy(cmdline + n, p);
+			n += strlen(p);
+		}
+	}
+
+	/* append `bootdev=2' */
+#define CMDLINE_BDEV	" bootdev="
+	if (rootdev > 0 && !strstr(cmdline, CMDLINE_BDEV))
+		n += sprintf(cmdline + n, "%s2", CMDLINE_BDEV);
+
+	/* finally, let's update uboot env & save it */
+	if (bootargs && strncmp(cmdline, bootargs, sizeof(cmdline))) {
+		env_set("bootargs", cmdline);
+		need_save = 1;
+	}
+
+__exit:
+	if (need_save)
+		env_save();
+}
+
+/* --------------------------------------------------------------------------
+ * call from u-boot
+ */
+
+int board_early_init_f(void)
+{
+	return 0;
+}
+
+int board_init(void)
+{
+	bd_hwrev_init();
+	bd_base_rev_init();
+
+	bd_bootdev_init();
+#ifdef CONFIG_S5P4418_ONEWIRE
+	bd_onewire_init();
+#endif
+
+	bd_backlight_off();
+
+	bd_lcd_config_gpio();
+	bd_lcd_init();
+
+	if (IS_ENABLED(CONFIG_SILENT_CONSOLE))
+		gd->flags |= GD_FLG_SILENT;
+
+	return 0;
+}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+	bd_update_env();
+
+#ifdef CONFIG_REVISION_TAG
+	set_board_rev();
+#endif
+	set_dtb_name();
+
+	set_ether_addr();
+
+	if (IS_ENABLED(CONFIG_SILENT_CONSOLE))
+		gd->flags &= ~GD_FLG_SILENT;
+
+	bd_backlight_on();
+	printf("\n");
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_SPLASH_SOURCE
+#include <splash.h>
+static struct splash_location splash_locations[] = {
+	{
+	.name = "mmc_fs",
+	.storage = SPLASH_STORAGE_MMC,
+	.flags = SPLASH_STORAGE_FS,
+	.devpart = __stringify(CONFIG_ROOT_DEV) ":"
+		   __stringify(CONFIG_BOOT_PART),
+	},
+};
+
+int splash_screen_prepare(void)
+{
+	int err;
+	char *env_cmd = env_get("load_splash");
+
+	debug("%s()\n", __func__);
+
+	if (env_cmd) {
+		err = run_command(env_cmd, 0);
+
+	} else {
+		char devpart[64] = { 0, };
+		int bootpart = env_get_ulong("bootpart", 0, CONFIG_BOOT_PART);
+		int rootdev;
+
+		if (env_get("firstboot"))
+			rootdev = env_get_ulong("rootdev", 0, CONFIG_ROOT_DEV);
+		else
+			rootdev = board_mmc_bootdev();
+
+		snprintf(devpart, ARRAY_SIZE(devpart), "%d:%d", rootdev,
+			 bootpart);
+		splash_locations[0].devpart = devpart;
+
+		err = splash_source_load(splash_locations,
+					 ARRAY_SIZE(splash_locations));
+	}
+
+	if (!err) {
+		char addr[64];
+
+		sprintf(addr, "0x%lx", gd->fb_base);
+		env_set("fb_addr", addr);
+	}
+
+	return err;
+}
+#endif
+
+/* u-boot dram initialize */
+int dram_init(void)
+{
+	gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
+	return 0;
+}
+
+/* u-boot dram board specific */
+int dram_init_banksize(void)
+{
+#define SCR_USER_SIG6_READ		(SCR_ALIVE_BASE + 0x0F0)
+	unsigned int reg_val = readl(SCR_USER_SIG6_READ);
+
+	/* set global data memory */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x00000100;
+
+	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+	gd->bd->bi_dram[0].size  = CONFIG_SYS_SDRAM_SIZE;
+
+	/* Number of Row: 14 bits */
+	if ((reg_val >> 28) == 14)
+		gd->bd->bi_dram[0].size -= 0x20000000;
+
+	/* Number of Memory Chips */
+	if ((reg_val & 0x3) > 1) {
+		gd->bd->bi_dram[1].start = 0x80000000;
+		gd->bd->bi_dram[1].size  = 0x40000000;
+	}
+	return 0;
+}
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+	int nodeoff;
+	unsigned int rootdev;
+	unsigned int fb_addr;
+
+	if (board_mmc_bootdev() > 0) {
+		rootdev = fdt_getprop_u32_default(blob, "/board", "sdidx", 2);
+		if (rootdev) {
+			/* find or create "/chosen" node. */
+			nodeoff = fdt_find_or_add_subnode(blob, 0, "chosen");
+			if (nodeoff >= 0)
+				fdt_setprop_u32(blob, nodeoff, "linux,rootdev",
+						rootdev);
+		}
+	}
+
+	fb_addr = env_get_ulong("fb_addr", 0, 0);
+	if (fb_addr) {
+		nodeoff = fdt_path_offset(blob, "/reserved-memory");
+		if (nodeoff < 0)
+			return nodeoff;
+
+		nodeoff = fdt_add_subnode(blob, nodeoff, "display_reserved");
+		if (nodeoff >= 0) {
+			fdt32_t cells[2];
+
+			cells[0] = cpu_to_fdt32(fb_addr);
+			cells[1] = cpu_to_fdt32(0x800000);
+
+			fdt_setprop(blob, nodeoff, "reg", cells,
+				    sizeof(cells[0]) * 2);
+		}
+	}
+
+	return 0;
+}
+#endif