1 files changed, 429 insertions, 0 deletions
diff --git a/board/siemens/pxm2/board.c b/board/siemens/pxm2/board.c
new file mode 100644
index 0000000..2c1841f
--- /dev/null
+++ b/board/siemens/pxm2/board.c
@@ -0,0 +1,429 @@
+/*
+ * Board functions for TI AM335X based pxm2 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
+ *
+ * Board functions for TI AM335X based boards
+ *
+ * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.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 "../../../drivers/video/da8xx-fb.h"
+#include <asm/io.h>
+#include <asm/emif.h>
+#include <asm/gpio.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <cpsw.h>
+#include <watchdog.h>
+#include "board.h"
+#include "../common/factoryset.h"
+#include "pmic.h"
+#include <nand.h>
+#include <bmp_layout.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_SPL_BUILD
+static void board_init_ddr(void)
+{
+struct emif_regs pxm2_ddr3_emif_reg_data = {
+	.sdram_config = 0x41805332,
+	.sdram_tim1 = 0x666b3c9,
+	.sdram_tim2 = 0x243631ca,
+	.sdram_tim3 = 0x33f,
+	.emif_ddr_phy_ctlr_1 = 0x100005,
+	.zq_config = 0,
+	.ref_ctrl = 0x81a,
+};
+
+struct ddr_data pxm2_ddr3_data = {
+	.datardsratio0 = 0x81204812,
+	.datawdsratio0 = 0,
+	.datafwsratio0 = 0x8020080,
+	.datawrsratio0 = 0x4010040,
+	.datauserank0delay = 1,
+	.datadldiff0 = PHY_DLL_LOCK_DIFF,
+};
+
+struct cmd_control pxm2_ddr3_cmd_ctrl_data = {
+	.cmd0csratio = 0x80,
+	.cmd0dldiff = 0,
+	.cmd0iclkout = 0,
+	.cmd1csratio = 0x80,
+	.cmd1dldiff = 0,
+	.cmd1iclkout = 0,
+	.cmd2csratio = 0x80,
+	.cmd2dldiff = 0,
+	.cmd2iclkout = 0,
+};
+
+	config_ddr(DDR_PLL_FREQ, DXR2_IOCTRL_VAL, &pxm2_ddr3_data,
+		   &pxm2_ddr3_cmd_ctrl_data, &pxm2_ddr3_emif_reg_data, 0);
+}
+
+/*
+ * voltage switching for MPU frequency switching.
+ * @module = mpu - 0, core - 1
+ * @vddx_op_vol_sel = vdd voltage to set
+ */
+
+#define MPU	0
+#define CORE	1
+
+int voltage_update(unsigned int module, unsigned char vddx_op_vol_sel)
+{
+	uchar buf[4];
+	unsigned int reg_offset;
+
+	if (module == MPU)
+		reg_offset = PMIC_VDD1_OP_REG;
+	else
+		reg_offset = PMIC_VDD2_OP_REG;
+
+	/* Select VDDx OP   */
+	if (i2c_read(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
+		return 1;
+
+	buf[0] &= ~PMIC_OP_REG_CMD_MASK;
+
+	if (i2c_write(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
+		return 1;
+
+	/* Configure VDDx OP  Voltage */
+	if (i2c_read(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
+		return 1;
+
+	buf[0] &= ~PMIC_OP_REG_SEL_MASK;
+	buf[0] |= vddx_op_vol_sel;
+
+	if (i2c_write(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
+		return 1;
+
+	if (i2c_read(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
+		return 1;
+
+	if ((buf[0] & PMIC_OP_REG_SEL_MASK) != vddx_op_vol_sel)
+		return 1;
+
+	return 0;
+}
+
+#define OSC     (V_OSCK/1000000)
+
+const struct dpll_params dpll_mpu_pxm2 = {
+		720, OSC-1, 1, -1, -1, -1, -1};
+
+void spl_siemens_board_init(void)
+{
+	uchar buf[4];
+	/*
+	 * pxm2 PMIC code.  All boards currently want an MPU voltage
+	 * of 1.2625V and CORE voltage of 1.1375V to operate at
+	 * 720MHz.
+	 */
+	if (i2c_probe(PMIC_CTRL_I2C_ADDR))
+		return;
+
+	/* VDD1/2 voltage selection register access by control i/f */
+	if (i2c_read(PMIC_CTRL_I2C_ADDR, PMIC_DEVCTRL_REG, 1, buf, 1))
+		return;
+
+	buf[0] |= PMIC_DEVCTRL_REG_SR_CTL_I2C_SEL_CTL_I2C;
+
+	if (i2c_write(PMIC_CTRL_I2C_ADDR, PMIC_DEVCTRL_REG, 1, buf, 1))
+		return;
+
+	/* Frequency switching for OPP 120 */
+	if (voltage_update(MPU, PMIC_OP_REG_SEL_1_2_6) ||
+	    voltage_update(CORE, PMIC_OP_REG_SEL_1_1_3)) {
+		printf("voltage update failed\n");
+	}
+}
+#endif /* if def CONFIG_SPL_BUILD */
+
+int read_eeprom(void)
+{
+	/* nothing ToDo here for this board */
+
+	return 0;
+}
+
+#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
+	(defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
+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_id		= 0,
+		.phy_if		= PHY_INTERFACE_MODE_RMII,
+	},
+	{
+		.slave_reg_ofs	= 0x308,
+		.sliver_reg_ofs	= 0xdc0,
+		.phy_id		= 1,
+		.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		= 4,
+	.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,
+};
+#endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
+
+#if defined(CONFIG_DRIVER_TI_CPSW) || \
+	(defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET))
+int board_eth_init(bd_t *bis)
+{
+	int n = 0;
+#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
+	(defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
+	struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
+#ifdef CONFIG_FACTORYSET
+	int rv;
+	if (!is_valid_ether_addr(factory_dat.mac))
+		printf("Error: no valid mac address\n");
+	else
+		eth_setenv_enetaddr("ethaddr", factory_dat.mac);
+#endif /* #ifdef CONFIG_FACTORYSET */
+
+	/* Set rgmii mode and enable rmii clock to be sourced from chip */
+	writel(RGMII_MODE_ENABLE , &cdev->miisel);
+
+	rv = cpsw_register(&cpsw_data);
+	if (rv < 0)
+		printf("Error %d registering CPSW switch\n", rv);
+	else
+		n += rv;
+#endif
+	return n;
+}
+#endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
+
+#if defined(CONFIG_VIDEO) && !defined(CONFIG_SPL_BUILD)
+static struct da8xx_panel lcd_panels[] = {
+	/* AUO G156XW01 V1 */
+	[0] = {
+		.name = "AUO_G156XW01_V1",
+		.width = 1376,
+		.height = 768,
+		.hfp = 14,
+		.hbp = 64,
+		.hsw = 56,
+		.vfp = 1,
+		.vbp = 28,
+		.vsw = 3,
+		.pxl_clk = 60000000,
+		.invert_pxl_clk = 0,
+	},
+	/* AUO B101EVN06 V0 */
+	[1] = {
+		.name = "AUO_B101EVN06_V0",
+		.width = 1280,
+		.height = 800,
+		.hfp = 52,
+		.hbp = 84,
+		.hsw = 36,
+		.vfp = 3,
+		.vbp = 14,
+		.vsw = 6,
+		.pxl_clk = 60000000,
+		.invert_pxl_clk = 0,
+	},
+	/*
+	 * Settings from factoryset
+	 * stored in EEPROM
+	 */
+	[2] = {
+		.name = "factoryset",
+		.width = 0,
+		.height = 0,
+		.hfp = 0,
+		.hbp = 0,
+		.hsw = 0,
+		.vfp = 0,
+		.vbp = 0,
+		.vsw = 0,
+		.pxl_clk = 60000000,
+		.invert_pxl_clk = 0,
+	},
+};
+
+static const struct display_panel disp_panel = {
+	WVGA,
+	32,
+	16,
+	COLOR_ACTIVE,
+};
+
+static const struct lcd_ctrl_config lcd_cfg = {
+	&disp_panel,
+	.ac_bias		= 255,
+	.ac_bias_intrpt		= 0,
+	.dma_burst_sz		= 16,
+	.bpp			= 32,
+	.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,
+};
+
+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_backlight(void)
+{
+	set_gpio(BOARD_LCD_POWER, 1);
+	set_gpio(BOARD_BACK_LIGHT, 1);
+	set_gpio(BOARD_TOUCH_POWER, 1);
+	return 0;
+}
+
+static int enable_pwm(void)
+{
+	struct pwmss_regs *pwmss = (struct pwmss_regs *)PWMSS0_BASE;
+	struct pwmss_ecap_regs *ecap;
+	int ticks = PWM_TICKS;
+	int duty = PWM_DUTY;
+
+	ecap = (struct pwmss_ecap_regs *)AM33XX_ECAP0_BASE;
+	/* enable clock */
+	setbits_le32(&pwmss->clkconfig, ECAP_CLK_EN);
+	/* TimeStam Counter register */
+	writel(0xdb9, &ecap->tsctr);
+	/* config period */
+	writel(ticks - 1, &ecap->cap3);
+	writel(ticks - 1, &ecap->cap1);
+	setbits_le16(&ecap->ecctl2,
+		     (ECTRL2_MDSL_ECAP | ECTRL2_SYNCOSEL_MASK | 0xd0));
+	/* config duty */
+	writel(duty, &ecap->cap2);
+	writel(duty, &ecap->cap4);
+	/* start */
+	setbits_le16(&ecap->ecctl2, ECTRL2_CTRSTP_FREERUN);
+	return 0;
+}
+
+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,
+};
+
+/* 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 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 cm_dpll *cmdpll = (struct cm_dpll *)CM_DPLL;
+	struct dpll_params dpll_lcd = {m, n, -1, -1, -1, -1, -1};
+
+	u32 *const clk_domains[] = {
+		&cmper->lcdclkctrl,
+		0
+	};
+	u32 *const clk_modules_explicit_en[] = {
+		&cmper->lcdclkctrl,
+		&cmper->lcdcclkstctrl,
+		&cmper->epwmss0clkctrl,
+		0
+	};
+	do_enable_clocks(clk_domains, clk_modules_explicit_en, 1);
+	writel(0x0, &cmdpll->clklcdcpixelclk);
+
+	do_setup_dpll(&dpll_lcd_regs, &dpll_lcd);
+
+	return 0;
+}
+
+static int board_video_init(void)
+{
+	/* set 300 MHz */
+	conf_disp_pll(25, 2);
+	if (factory_dat.pxm50)
+		da8xx_video_init(&lcd_panels[0], &lcd_cfg, lcd_cfg.bpp);
+	else
+		da8xx_video_init(&lcd_panels[1], &lcd_cfg, lcd_cfg.bpp);
+
+	enable_pwm();
+	enable_backlight();
+
+	return 0;
+}
+#endif
+#include "../common/board.c"