| /* | 
 |  * Board functions for TI AM335X based rut board | 
 |  * (C) Copyright 2013 Siemens Schweiz AG | 
 |  * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de. | 
 |  * | 
 |  * Based on: | 
 |  * u-boot:/board/ti/am335x/board.c | 
 |  * | 
 |  * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ | 
 |  * | 
 |  * SPDX-License-Identifier:	GPL-2.0+ | 
 |  */ | 
 |  | 
 | #include <common.h> | 
 | #include <errno.h> | 
 | #include <spi.h> | 
 | #include <spl.h> | 
 | #include <asm/arch/cpu.h> | 
 | #include <asm/arch/hardware.h> | 
 | #include <asm/arch/omap.h> | 
 | #include <asm/arch/ddr_defs.h> | 
 | #include <asm/arch/clock.h> | 
 | #include <asm/arch/gpio.h> | 
 | #include <asm/arch/mmc_host_def.h> | 
 | #include <asm/arch/sys_proto.h> | 
 | #include <asm/io.h> | 
 | #include <asm/emif.h> | 
 | #include <asm/gpio.h> | 
 | #include <i2c.h> | 
 | #include <miiphy.h> | 
 | #include <cpsw.h> | 
 | #include <video.h> | 
 | #include <watchdog.h> | 
 | #include "board.h" | 
 | #include "../common/factoryset.h" | 
 | #include "../../../drivers/video/da8xx-fb.h" | 
 |  | 
 | DECLARE_GLOBAL_DATA_PTR; | 
 |  | 
 | /* | 
 |  * Read header information from EEPROM into global structure. | 
 |  */ | 
 | static int read_eeprom(void) | 
 | { | 
 | 	return 0; | 
 | } | 
 |  | 
 | #ifdef CONFIG_SPL_BUILD | 
 | static void board_init_ddr(void) | 
 | { | 
 | struct emif_regs rut_ddr3_emif_reg_data = { | 
 | 	.sdram_config = 0x61C04AB2, | 
 | 	.sdram_tim1 = 0x0888A39B, | 
 | 	.sdram_tim2 = 0x26337FDA, | 
 | 	.sdram_tim3 = 0x501F830F, | 
 | 	.emif_ddr_phy_ctlr_1 = 0x6, | 
 | 	.zq_config = 0x50074BE4, | 
 | 	.ref_ctrl = 0x93B, | 
 | }; | 
 |  | 
 | struct ddr_data rut_ddr3_data = { | 
 | 	.datardsratio0 = 0x3b, | 
 | 	.datawdsratio0 = 0x85, | 
 | 	.datafwsratio0 = 0x100, | 
 | 	.datawrsratio0 = 0xc1, | 
 | }; | 
 |  | 
 | struct cmd_control rut_ddr3_cmd_ctrl_data = { | 
 | 	.cmd0csratio = 0x40, | 
 | 	.cmd0iclkout = 1, | 
 | 	.cmd1csratio = 0x40, | 
 | 	.cmd1iclkout = 1, | 
 | 	.cmd2csratio = 0x40, | 
 | 	.cmd2iclkout = 1, | 
 | }; | 
 |  | 
 | const struct ctrl_ioregs ioregs = { | 
 | 	.cm0ioctl		= RUT_IOCTRL_VAL, | 
 | 	.cm1ioctl		= RUT_IOCTRL_VAL, | 
 | 	.cm2ioctl		= RUT_IOCTRL_VAL, | 
 | 	.dt0ioctl		= RUT_IOCTRL_VAL, | 
 | 	.dt1ioctl		= RUT_IOCTRL_VAL, | 
 | }; | 
 |  | 
 | 	config_ddr(DDR_PLL_FREQ, &ioregs, &rut_ddr3_data, | 
 | 		   &rut_ddr3_cmd_ctrl_data, &rut_ddr3_emif_reg_data, 0); | 
 | } | 
 |  | 
 | static int request_and_pulse_reset(int gpio, const char *name) | 
 | { | 
 | 	int ret; | 
 | 	const int delay_us = 2000; /* 2ms */ | 
 |  | 
 | 	ret = gpio_request(gpio, name); | 
 | 	if (ret < 0) { | 
 | 		printf("%s: Unable to request %s\n", __func__, name); | 
 | 		goto err; | 
 | 	} | 
 |  | 
 | 	ret = gpio_direction_output(gpio, 0); | 
 | 	if (ret < 0) { | 
 | 		printf("%s: Unable to set %s  as output\n", __func__, name); | 
 | 		goto err_free_gpio; | 
 | 	} | 
 |  | 
 | 	udelay(delay_us); | 
 |  | 
 | 	gpio_set_value(gpio, 1); | 
 |  | 
 | 	return 0; | 
 |  | 
 | err_free_gpio: | 
 | 	gpio_free(gpio); | 
 | err: | 
 | 	return ret; | 
 | } | 
 |  | 
 | #define GPIO_TO_PIN(bank, gpio)		(32 * (bank) + (gpio)) | 
 | #define ETH_PHY_RESET_GPIO		GPIO_TO_PIN(2, 18) | 
 | #define MAXTOUCH_RESET_GPIO		GPIO_TO_PIN(3, 18) | 
 | #define DISPLAY_RESET_GPIO		GPIO_TO_PIN(3, 19) | 
 |  | 
 | #define REQUEST_AND_PULSE_RESET(N) \ | 
 | 		request_and_pulse_reset(N, #N); | 
 |  | 
 | static void spl_siemens_board_init(void) | 
 | { | 
 | 	REQUEST_AND_PULSE_RESET(ETH_PHY_RESET_GPIO); | 
 | 	REQUEST_AND_PULSE_RESET(MAXTOUCH_RESET_GPIO); | 
 | 	REQUEST_AND_PULSE_RESET(DISPLAY_RESET_GPIO); | 
 | } | 
 | #endif /* if def CONFIG_SPL_BUILD */ | 
 |  | 
 | #if defined(CONFIG_DRIVER_TI_CPSW) | 
 | static void cpsw_control(int enabled) | 
 | { | 
 | 	/* VTP can be added here */ | 
 |  | 
 | 	return; | 
 | } | 
 |  | 
 | static struct cpsw_slave_data cpsw_slaves[] = { | 
 | 	{ | 
 | 		.slave_reg_ofs	= 0x208, | 
 | 		.sliver_reg_ofs	= 0xd80, | 
 | 		.phy_addr	= 1, | 
 | 		.phy_if		= PHY_INTERFACE_MODE_RMII, | 
 | 	}, | 
 | 	{ | 
 | 		.slave_reg_ofs	= 0x308, | 
 | 		.sliver_reg_ofs	= 0xdc0, | 
 | 		.phy_addr	= 0, | 
 | 		.phy_if		= PHY_INTERFACE_MODE_RMII, | 
 | 	}, | 
 | }; | 
 |  | 
 | static struct cpsw_platform_data cpsw_data = { | 
 | 	.mdio_base		= CPSW_MDIO_BASE, | 
 | 	.cpsw_base		= CPSW_BASE, | 
 | 	.mdio_div		= 0xff, | 
 | 	.channels		= 8, | 
 | 	.cpdma_reg_ofs		= 0x800, | 
 | 	.slaves			= 1, | 
 | 	.slave_data		= cpsw_slaves, | 
 | 	.ale_reg_ofs		= 0xd00, | 
 | 	.ale_entries		= 1024, | 
 | 	.host_port_reg_ofs	= 0x108, | 
 | 	.hw_stats_reg_ofs	= 0x900, | 
 | 	.bd_ram_ofs		= 0x2000, | 
 | 	.mac_control		= (1 << 5), | 
 | 	.control		= cpsw_control, | 
 | 	.host_port_num		= 0, | 
 | 	.version		= CPSW_CTRL_VERSION_2, | 
 | }; | 
 |  | 
 | #if defined(CONFIG_DRIVER_TI_CPSW) || \ | 
 | 	(defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)) | 
 | int board_eth_init(bd_t *bis) | 
 | { | 
 | 	struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; | 
 | 	int n = 0; | 
 | 	int rv; | 
 |  | 
 | #ifndef CONFIG_SPL_BUILD | 
 | 	factoryset_setenv(); | 
 | #endif | 
 |  | 
 | 	/* Set rgmii mode and enable rmii clock to be sourced from chip */ | 
 | 	writel((RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE), &cdev->miisel); | 
 |  | 
 | 	rv = cpsw_register(&cpsw_data); | 
 | 	if (rv < 0) | 
 | 		printf("Error %d registering CPSW switch\n", rv); | 
 | 	else | 
 | 		n += rv; | 
 | 	return n; | 
 | } | 
 | #endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */ | 
 | #endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */ | 
 |  | 
 | #if defined(CONFIG_HW_WATCHDOG) | 
 | static bool hw_watchdog_init_done; | 
 | static int  hw_watchdog_trigger_level; | 
 |  | 
 | void hw_watchdog_reset(void) | 
 | { | 
 | 	if (!hw_watchdog_init_done) | 
 | 		return; | 
 |  | 
 | 	hw_watchdog_trigger_level = hw_watchdog_trigger_level ? 0 : 1; | 
 | 	gpio_set_value(WATCHDOG_TRIGGER_GPIO, hw_watchdog_trigger_level); | 
 | } | 
 |  | 
 | void hw_watchdog_init(void) | 
 | { | 
 | 	gpio_request(WATCHDOG_TRIGGER_GPIO, "watchdog_trigger"); | 
 | 	gpio_direction_output(WATCHDOG_TRIGGER_GPIO, hw_watchdog_trigger_level); | 
 |  | 
 | 	hw_watchdog_reset(); | 
 |  | 
 | 	hw_watchdog_init_done = 1; | 
 | } | 
 | #endif /* defined(CONFIG_HW_WATCHDOG) */ | 
 |  | 
 | #if defined(CONFIG_VIDEO) && !defined(CONFIG_SPL_BUILD) | 
 | static struct da8xx_panel lcd_panels[] = { | 
 | 	/* FORMIKE, 4.3", 480x800, KWH043MC17-F01 */ | 
 | 	[0] = { | 
 | 		.name   = "KWH043MC17-F01", | 
 | 		.width  = 480, | 
 | 		.height = 800, | 
 | 		.hfp = 50,              /* no spec, "don't care" values */ | 
 | 		.hbp = 50, | 
 | 		.hsw = 50, | 
 | 		.vfp = 50, | 
 | 		.vbp = 50, | 
 | 		.vsw = 50, | 
 | 		.pxl_clk = 35910000,    /* tCYCD=20ns, max 50MHz, 60fps */ | 
 | 		.invert_pxl_clk = 1, | 
 | 	}, | 
 | 	/* FORMIKE, 4.3", 480x800, KWH043ST20-F01 */ | 
 | 	[1] = { | 
 | 		.name   = "KWH043ST20-F01", | 
 | 		.width  = 480, | 
 | 		.height = 800, | 
 | 		.hfp = 50,              /* no spec, "don't care" values */ | 
 | 		.hbp = 50, | 
 | 		.hsw = 50, | 
 | 		.vfp = 50, | 
 | 		.vbp = 50, | 
 | 		.vsw = 50, | 
 | 		.pxl_clk = 35910000,    /* tCYCD=20ns, max 50MHz, 60fps */ | 
 | 		.invert_pxl_clk = 1, | 
 | 	}, | 
 | 	/* Multi-Inno, 4.3", 480x800, MI0430VT-1 */ | 
 | 	[2] = { | 
 | 		.name   = "MI0430VT-1", | 
 | 		.width  = 480, | 
 | 		.height = 800, | 
 | 		.hfp = 50,              /* no spec, "don't care" values */ | 
 | 		.hbp = 50, | 
 | 		.hsw = 50, | 
 | 		.vfp = 50, | 
 | 		.vbp = 50, | 
 | 		.vsw = 50, | 
 | 		.pxl_clk = 35910000,    /* tCYCD=20ns, max 50MHz, 60fps */ | 
 | 		.invert_pxl_clk = 1, | 
 | 	}, | 
 | }; | 
 |  | 
 | static const struct display_panel disp_panels[] = { | 
 | 	[0] = { | 
 | 		WVGA, | 
 | 		16,	/* RGB 888 */ | 
 | 		16, | 
 | 		COLOR_ACTIVE, | 
 | 	}, | 
 | 	[1] = { | 
 | 		WVGA, | 
 | 		16,	/* RGB 888 */ | 
 | 		16, | 
 | 		COLOR_ACTIVE, | 
 | 	}, | 
 | 	[2] = { | 
 | 		WVGA, | 
 | 		24,	/* RGB 888 */ | 
 | 		16, | 
 | 		COLOR_ACTIVE, | 
 | 	}, | 
 | }; | 
 |  | 
 | static const struct lcd_ctrl_config lcd_cfgs[] = { | 
 | 	[0] = { | 
 | 		&disp_panels[0], | 
 | 		.ac_bias		= 255, | 
 | 		.ac_bias_intrpt		= 0, | 
 | 		.dma_burst_sz		= 16, | 
 | 		.bpp			= 16, | 
 | 		.fdd			= 0x80, | 
 | 		.tft_alt_mode		= 0, | 
 | 		.stn_565_mode		= 0, | 
 | 		.mono_8bit_mode		= 0, | 
 | 		.invert_line_clock	= 1, | 
 | 		.invert_frm_clock	= 1, | 
 | 		.sync_edge		= 0, | 
 | 		.sync_ctrl		= 1, | 
 | 		.raster_order		= 0, | 
 | 	}, | 
 | 	[1] = { | 
 | 		&disp_panels[1], | 
 | 		.ac_bias		= 255, | 
 | 		.ac_bias_intrpt		= 0, | 
 | 		.dma_burst_sz		= 16, | 
 | 		.bpp			= 16, | 
 | 		.fdd			= 0x80, | 
 | 		.tft_alt_mode		= 0, | 
 | 		.stn_565_mode		= 0, | 
 | 		.mono_8bit_mode		= 0, | 
 | 		.invert_line_clock	= 1, | 
 | 		.invert_frm_clock	= 1, | 
 | 		.sync_edge		= 0, | 
 | 		.sync_ctrl		= 1, | 
 | 		.raster_order		= 0, | 
 | 	}, | 
 | 	[2] = { | 
 | 		&disp_panels[2], | 
 | 		.ac_bias		= 255, | 
 | 		.ac_bias_intrpt		= 0, | 
 | 		.dma_burst_sz		= 16, | 
 | 		.bpp			= 24, | 
 | 		.fdd			= 0x80, | 
 | 		.tft_alt_mode		= 0, | 
 | 		.stn_565_mode		= 0, | 
 | 		.mono_8bit_mode		= 0, | 
 | 		.invert_line_clock	= 1, | 
 | 		.invert_frm_clock	= 1, | 
 | 		.sync_edge		= 0, | 
 | 		.sync_ctrl		= 1, | 
 | 		.raster_order		= 0, | 
 | 	}, | 
 |  | 
 | }; | 
 |  | 
 | /* no console on this board */ | 
 | int board_cfb_skip(void) | 
 | { | 
 | 	return 1; | 
 | } | 
 |  | 
 | #define PLL_GET_M(v) ((v >> 8) & 0x7ff) | 
 | #define PLL_GET_N(v) (v & 0x7f) | 
 |  | 
 | static struct dpll_regs dpll_lcd_regs = { | 
 | 	.cm_clkmode_dpll = CM_WKUP + 0x98, | 
 | 	.cm_idlest_dpll = CM_WKUP + 0x48, | 
 | 	.cm_clksel_dpll = CM_WKUP + 0x54, | 
 | }; | 
 |  | 
 | static int get_clk(struct dpll_regs *dpll_regs) | 
 | { | 
 | 	unsigned int val; | 
 | 	unsigned int m, n; | 
 | 	int f = 0; | 
 |  | 
 | 	val = readl(dpll_regs->cm_clksel_dpll); | 
 | 	m = PLL_GET_M(val); | 
 | 	n = PLL_GET_N(val); | 
 | 	f = (m * V_OSCK) / n; | 
 |  | 
 | 	return f; | 
 | }; | 
 |  | 
 | int clk_get(int clk) | 
 | { | 
 | 	return get_clk(&dpll_lcd_regs); | 
 | }; | 
 |  | 
 | static int conf_disp_pll(int m, int n) | 
 | { | 
 | 	struct cm_perpll *cmper = (struct cm_perpll *)CM_PER; | 
 | 	struct dpll_params dpll_lcd = {m, n, -1, -1, -1, -1, -1}; | 
 | #if defined(DISPL_PLL_SPREAD_SPECTRUM) | 
 | 	struct cm_wkuppll *cmwkup = (struct cm_wkuppll *)CM_WKUP; | 
 | #endif | 
 |  | 
 | 	u32 *const clk_domains[] = { | 
 | 		&cmper->lcdclkctrl, | 
 | 		0 | 
 | 	}; | 
 | 	u32 *const clk_modules_explicit_en[] = { | 
 | 		&cmper->lcdclkctrl, | 
 | 		&cmper->lcdcclkstctrl, | 
 | 		&cmper->spi1clkctrl, | 
 | 		0 | 
 | 	}; | 
 | 	do_enable_clocks(clk_domains, clk_modules_explicit_en, 1); | 
 |  | 
 | 	do_setup_dpll(&dpll_lcd_regs, &dpll_lcd); | 
 |  | 
 | #if defined(DISPL_PLL_SPREAD_SPECTRUM) | 
 | 	writel(0x64, &cmwkup->resv6[3]); /* 0x50 */ | 
 | 	writel(0x800, &cmwkup->resv6[2]); /* 0x4c */ | 
 | 	writel(readl(&cmwkup->clkmoddplldisp) | CM_CLKMODE_DPLL_SSC_EN_MASK, | 
 | 	       &cmwkup->clkmoddplldisp); /* 0x98 */ | 
 | #endif | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int set_gpio(int gpio, int state) | 
 | { | 
 | 	gpio_request(gpio, "temp"); | 
 | 	gpio_direction_output(gpio, state); | 
 | 	gpio_set_value(gpio, state); | 
 | 	gpio_free(gpio); | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int enable_lcd(void) | 
 | { | 
 | 	unsigned char buf[1]; | 
 |  | 
 | 	set_gpio(BOARD_LCD_RESET, 0); | 
 | 	mdelay(1); | 
 | 	set_gpio(BOARD_LCD_RESET, 1); | 
 | 	mdelay(1); | 
 |  | 
 | 	/* spi lcd init */ | 
 | 	kwh043st20_f01_spi_startup(1, 0, 5000000, SPI_MODE_0); | 
 |  | 
 | 	/* backlight on */ | 
 | 	buf[0] = 0xf; | 
 | 	i2c_write(0x24, 0x7, 1, buf, 1); | 
 | 	buf[0] = 0x3f; | 
 | 	i2c_write(0x24, 0x8, 1, buf, 1); | 
 | 	return 0; | 
 | } | 
 |  | 
 | int arch_early_init_r(void) | 
 | { | 
 | 	enable_lcd(); | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int board_video_init(void) | 
 | { | 
 | 	int i; | 
 | 	int anzdisp = ARRAY_SIZE(lcd_panels); | 
 | 	int display = 1; | 
 |  | 
 | 	for (i = 0; i < anzdisp; i++) { | 
 | 		if (strncmp((const char *)factory_dat.disp_name, | 
 | 			    lcd_panels[i].name, | 
 | 		    strlen((const char *)factory_dat.disp_name)) == 0) { | 
 | 			printf("DISPLAY: %s\n", factory_dat.disp_name); | 
 | 			break; | 
 | 		} | 
 | 	} | 
 | 	if (i == anzdisp) { | 
 | 		i = 1; | 
 | 		printf("%s: %s not found, using default %s\n", __func__, | 
 | 		       factory_dat.disp_name, lcd_panels[i].name); | 
 | 	} | 
 | 	conf_disp_pll(24, 1); | 
 | 	da8xx_video_init(&lcd_panels[display], &lcd_cfgs[display], | 
 | 			 lcd_cfgs[display].bpp); | 
 |  | 
 | 	return 0; | 
 | } | 
 | #endif /* ifdef CONFIG_VIDEO */ | 
 |  | 
 | #ifdef CONFIG_BOARD_LATE_INIT | 
 | int board_late_init(void) | 
 | { | 
 | 	int ret; | 
 | 	char tmp[2 * MAX_STRING_LENGTH + 2]; | 
 |  | 
 | 	omap_nand_switch_ecc(1, 8); | 
 |  | 
 | 	if (factory_dat.asn[0] != 0) | 
 | 		sprintf(tmp, "%s_%s", factory_dat.asn, | 
 | 			factory_dat.comp_version); | 
 | 	else | 
 | 		sprintf(tmp, "QMX7.E38_4.0"); | 
 |  | 
 | 	ret = setenv("boardid", tmp); | 
 | 	if (ret) | 
 | 		printf("error setting board id\n"); | 
 |  | 
 | 	return 0; | 
 | } | 
 | #endif | 
 |  | 
 | #include "../common/board.c" |