arm, am335x: add support for 3 siemens boards
add support for the am335x based boards from siemens:
dxr2:
- DDR3 128MiB
- NAND 256MiB
- Ethernet with external Switch SMSC LAN9303
- no PMIC
- internal Watchdog
- DFU support
pxm2:
- DDR2 512 MiB
- NAND 1024 MiB
- PMIC
- PHY atheros ar803x
- USB Host
- internal Watchdog
- DFU support
rut:
- DDR3 256 MiB
- NAND 256 MiB
- PMIC
- PHY natsemi dp83630
- external Watchdog
- DFU support
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Roger Meier <r.meier@siemens.com>
Signed-off-by: Samuel Egli <samuel.egli@siemens.com>
Cc: Pascal Bach <pascal.bach@siemens.com>
Cc: Tom Rini <trini@ti.com>
diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c
new file mode 100644
index 0000000..6279c32
--- /dev/null
+++ b/board/siemens/common/board.c
@@ -0,0 +1,171 @@
+/*
+ * Common board functions for siemens AM335X based boards
+ * (C) Copyright 2013 Siemens Schweiz AG
+ * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * Based on:
+ * U-Boot file:/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 <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 <watchdog.h>
+#include "../common/factoryset.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_SPL_BUILD
+void set_uart_mux_conf(void)
+{
+ enable_uart0_pin_mux();
+}
+
+void set_mux_conf_regs(void)
+{
+ /* Initalize the board header */
+ enable_i2c0_pin_mux();
+ i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+ if (read_eeprom() < 0)
+ puts("Could not get board ID.\n");
+
+ enable_board_pin_mux();
+}
+
+void sdram_init(void)
+{
+ spl_siemens_board_init();
+ board_init_ddr();
+
+ return;
+}
+#endif /* #ifdef CONFIG_SPL_BUILD */
+
+#ifndef CONFIG_SPL_BUILD
+/*
+ * Basic board specific setup. Pinmux has been handled already.
+ */
+int board_init(void)
+{
+#if defined(CONFIG_HW_WATCHDOG)
+ hw_watchdog_init();
+#endif /* defined(CONFIG_HW_WATCHDOG) */
+ i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+ if (read_eeprom() < 0)
+ puts("Could not get board ID.\n");
+
+ gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
+ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+#ifdef CONFIG_FACTORYSET
+ factoryset_read_eeprom(CONFIG_SYS_I2C_EEPROM_ADDR);
+#endif
+ gpmc_init();
+
+#ifdef CONFIG_VIDEO
+ board_video_init();
+#endif
+
+ return 0;
+}
+#endif /* #ifndef CONFIG_SPL_BUILD */
+
+#define OSC (V_OSCK/1000000)
+const struct dpll_params dpll_ddr = {
+ DDR_PLL_FREQ, OSC-1, 1, -1, -1, -1, -1};
+
+const struct dpll_params *get_dpll_ddr_params(void)
+{
+ return &dpll_ddr;
+}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+ omap_nand_switch_ecc(1, 8);
+
+ return 0;
+}
+#endif
+
+#ifndef CONFIG_SPL_BUILD
+#if defined(BOARD_DFU_BUTTON_GPIO)
+/*
+ * This command returns the status of the user button on
+ * Input - none
+ * Returns - 1 if button is held down
+ * 0 if button is not held down
+ */
+static int
+do_userbutton(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ int button = 0;
+ int gpio;
+
+ gpio = BOARD_DFU_BUTTON_GPIO;
+ gpio_request(gpio, "DFU");
+ gpio_direction_input(gpio);
+ if (gpio_get_value(gpio))
+ button = 1;
+ else
+ button = 0;
+
+ gpio_free(gpio);
+ if (!button) {
+ /* LED0 - RED=1: GPIO2_0 2*32 = 64 */
+ gpio_request(BOARD_DFU_BUTTON_LED, "");
+ gpio_direction_output(BOARD_DFU_BUTTON_LED, 1);
+ gpio_set_value(BOARD_DFU_BUTTON_LED, 1);
+ }
+
+ return button;
+}
+
+U_BOOT_CMD(
+ dfubutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
+ "Return the status of the DFU button",
+ ""
+);
+#endif
+
+static int
+do_usertestwdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ printf("\n\n\n Go into infinite loop\n\n\n");
+ while (1)
+ ;
+ return 0;
+};
+
+U_BOOT_CMD(
+ testwdt, CONFIG_SYS_MAXARGS, 1, do_usertestwdt,
+ "Sends U-Boot into infinite loop",
+ ""
+);
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+ printf("Enable d-cache\n");
+ /* Enable D-cache. I-cache is already enabled in start.S */
+ dcache_enable();
+}
+#endif /* CONFIG_SYS_DCACHE_OFF */
+#endif /* !CONFIG_SPL_BUILD */