am335x, guardian: Add support for the bosch guardian board
Add support for the Bosch Guardian board.
CPU : AM335X-GP rev 2.1
Model: Bosch AM335x Guardian
I2C: ready
DRAM: 256 MiB
NAND: 512 MiB
MMC: OMAP SD/MMC: 0
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Felix Brack <fb@ltec.ch>
diff --git a/board/bosch/guardian/board.c b/board/bosch/guardian/board.c
new file mode 100644
index 0000000..86ab180
--- /dev/null
+++ b/board/bosch/guardian/board.c
@@ -0,0 +1,186 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * board.c
+ *
+ * Board functions for Bosch Guardian
+ *
+ * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
+ * Copyright (C) 2018 Robert Bosch Power Tools GmbH
+ */
+
+#include <common.h>
+#include <cpsw.h>
+#include <dm.h>
+#include <environment.h>
+#include <environment.h>
+#include <errno.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <panel.h>
+#include <power/tps65217.h>
+#include <power/tps65910.h>
+#include <spl.h>
+#include <watchdog.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/ddr_defs.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/mmc_host_def.h>
+#include <asm/arch/omap.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/emif.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include "board.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
+static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
+
+static const struct ddr_data ddr3_data = {
+ .datardsratio0 = MT41K128M16JT125K_RD_DQS,
+ .datawdsratio0 = MT41K128M16JT125K_WR_DQS,
+ .datafwsratio0 = MT41K128M16JT125K_PHY_FIFO_WE,
+ .datawrsratio0 = MT41K128M16JT125K_PHY_WR_DATA,
+};
+
+static const struct cmd_control ddr3_cmd_ctrl_data = {
+ .cmd0csratio = MT41K128M16JT125K_RATIO,
+ .cmd0iclkout = MT41K128M16JT125K_INVERT_CLKOUT,
+
+ .cmd1csratio = MT41K128M16JT125K_RATIO,
+ .cmd1iclkout = MT41K128M16JT125K_INVERT_CLKOUT,
+
+ .cmd2csratio = MT41K128M16JT125K_RATIO,
+ .cmd2iclkout = MT41K128M16JT125K_INVERT_CLKOUT,
+};
+
+static struct emif_regs ddr3_emif_reg_data = {
+ .sdram_config = MT41K128M16JT125K_EMIF_SDCFG,
+ .ref_ctrl = MT41K128M16JT125K_EMIF_SDREF,
+ .sdram_tim1 = MT41K128M16JT125K_EMIF_TIM1,
+ .sdram_tim2 = MT41K128M16JT125K_EMIF_TIM2,
+ .sdram_tim3 = MT41K128M16JT125K_EMIF_TIM3,
+ .zq_config = MT41K128M16JT125K_ZQ_CFG,
+ .emif_ddr_phy_ctlr_1 = MT41K128M16JT125K_EMIF_READ_LATENCY,
+};
+
+#define OSC (V_OSCK / 1000000)
+const struct dpll_params dpll_ddr = {
+ 400, OSC - 1, 1, -1, -1, -1, -1};
+
+void am33xx_spl_board_init(void)
+{
+ int mpu_vdd;
+ int usb_cur_lim;
+
+ /* Get the frequency */
+ dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
+
+ if (i2c_probe(TPS65217_CHIP_PM))
+ return;
+
+ /*
+ * Increase USB current limit to 1300mA or 1800mA and set
+ * the MPU voltage controller as needed.
+ */
+ if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
+ usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
+ mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
+ } else {
+ usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
+ mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
+ }
+
+ if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
+ TPS65217_POWER_PATH,
+ usb_cur_lim,
+ TPS65217_USB_INPUT_CUR_LIMIT_MASK))
+ puts("tps65217_reg_write failure\n");
+
+ /* Set DCDC3 (CORE) voltage to 1.125V */
+ if (tps65217_voltage_update(TPS65217_DEFDCDC3,
+ TPS65217_DCDC_VOLT_SEL_1125MV)) {
+ puts("tps65217_voltage_update failure\n");
+ return;
+ }
+
+ /* Set CORE Frequencies to OPP100 */
+ do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
+
+ /* Set DCDC2 (MPU) voltage */
+ if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
+ puts("tps65217_voltage_update failure\n");
+ return;
+ }
+
+ /*
+ * Set LDO3 to 1.8V and LDO4 to 3.3V
+ */
+ if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
+ TPS65217_DEFLS1,
+ TPS65217_LDO_VOLTAGE_OUT_1_8,
+ TPS65217_LDO_MASK))
+ puts("tps65217_reg_write failure\n");
+
+ if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
+ TPS65217_DEFLS2,
+ TPS65217_LDO_VOLTAGE_OUT_3_3,
+ TPS65217_LDO_MASK))
+ puts("tps65217_reg_write failure\n");
+
+ /* Set MPU Frequency to what we detected now that voltages are set */
+ do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
+}
+
+const struct dpll_params *get_dpll_ddr_params(void)
+{
+ enable_i2c0_pin_mux();
+ i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
+
+ return &dpll_ddr;
+}
+
+void set_uart_mux_conf(void)
+{
+ enable_uart0_pin_mux();
+}
+
+void set_mux_conf_regs(void)
+{
+ enable_board_pin_mux();
+}
+
+const struct ctrl_ioregs ioregs = {
+ .cm0ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
+ .cm1ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
+ .cm2ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
+ .dt0ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
+ .dt1ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
+};
+
+void sdram_init(void)
+{
+ config_ddr(400, &ioregs,
+ &ddr3_data,
+ &ddr3_cmd_ctrl_data,
+ &ddr3_emif_reg_data, 0);
+}
+#endif
+
+int board_init(void)
+{
+#if defined(CONFIG_HW_WATCHDOG)
+ hw_watchdog_init();
+#endif
+
+ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+#ifdef CONFIG_NAND
+ gpmc_init();
+#endif
+ return 0;
+}