--- /dev/null
+/*
+ * (C) Copyright 2011
+ * Logic Product Development <www.logicpd.com>
+ *
+ * Author :
+ * Peter Barada <peter.barada@logicpd.com>
+ *
+ * Derived from Beagle Board and 3430 SDP code by
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Syed Mohammed Khasim <khasim@ti.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#include <common.h>
+#include <netdev.h>
+#include <flash.h>
+#include <nand.h>
+#include <i2c.h>
+#include <twl4030.h>
+#include <asm/io.h>
+#include <asm/arch/mmc_host_def.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+#include <asm/mach-types.h>
+#include "omap3logic.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * two dimensional array of strucures containining board name and Linux
+ * machine IDs; row it selected based on CPU column is slected based
+ * on hsusb0_data5 pin having a pulldown resistor
+ */
+static struct board_id {
+ char *name;
+ int machine_id;
+} boards[2][2] = {
+ {
+ {
+ .name = "OMAP35xx SOM LV",
+ .machine_id = MACH_TYPE_OMAP3530_LV_SOM,
+ },
+ {
+ .name = "OMAP35xx Torpedo",
+ .machine_id = MACH_TYPE_OMAP3_TORPEDO,
+ },
+ },
+ {
+ {
+ .name = "DM37xx SOM LV",
+ .machine_id = MACH_TYPE_DM3730_SOM_LV,
+ },
+ {
+ .name = "DM37xx Torpedo",
+ .machine_id = MACH_TYPE_DM3730_TORPEDO,
+ },
+ },
+};
+
+/*
+ * BOARD_ID_GPIO - GPIO of pin with optional pulldown resistor on SOM LV
+ */
+#define BOARD_ID_GPIO 189 /* hsusb0_data5 pin */
+
+/*
+ * Routine: board_init
+ * Description: Early hardware init.
+ */
+int board_init(void)
+{
+ struct board_id *board;
+ unsigned int val;
+
+ gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
+
+ /* boot param addr */
+ gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
+
+ /*
+ * To identify between a SOM LV and Torpedo module,
+ * a pulldown resistor is on hsusb0_data5 for the SOM LV module.
+ * Drive the pin (and let it soak), then read it back.
+ * If the pin is still high its a Torpedo. If low its a SOM LV
+ */
+
+ /* Mux hsusb0_data5 as a GPIO */
+ MUX_VAL(CP(HSUSB0_DATA5), (IEN | PTD | DIS | M4));
+
+ if (gpio_request(BOARD_ID_GPIO, "husb0_data5.gpio_189") == 0) {
+
+ /*
+ * Drive BOARD_ID_GPIO - the pulldown resistor on the SOM LV
+ * will drain the voltage.
+ */
+ gpio_direction_output(BOARD_ID_GPIO, 0);
+ gpio_set_value(BOARD_ID_GPIO, 1);
+
+ /* Let it soak for a bit */
+ sdelay(0x100);
+
+ /*
+ * Read state of BOARD_ID_GPIO as an input and if its set.
+ * If so the board is a Torpedo
+ */
+ gpio_direction_input(BOARD_ID_GPIO);
+ val = gpio_get_value(BOARD_ID_GPIO);
+ gpio_free(BOARD_ID_GPIO);
+
+ board = &boards[!!(get_cpu_family() == CPU_OMAP36XX)][!!val];
+ printf("Board: %s\n", board->name);
+
+ /* Set the machine_id passed to Linux */
+ gd->bd->bi_arch_number = board->machine_id;
+ }
+
+ /* restore hsusb0_data5 pin as hsusb0_data5 */
+ MUX_VAL(CP(HSUSB0_DATA5), (IEN | PTD | DIS | M0));
+
+ return 0;
+}
+
+#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
+int board_mmc_init(bd_t *bis)
+{
+ return omap_mmc_init(0, 0, 0, -1, -1);
+}
+#endif
+
+#ifdef CONFIG_SMC911X
+/* GPMC CS1 settings for Logic SOM LV/Torpedo LAN92xx Ethernet chip */
+static const u32 gpmc_lan92xx_config[] = {
+ NET_LAN92XX_GPMC_CONFIG1,
+ NET_LAN92XX_GPMC_CONFIG2,
+ NET_LAN92XX_GPMC_CONFIG3,
+ NET_LAN92XX_GPMC_CONFIG4,
+ NET_LAN92XX_GPMC_CONFIG5,
+ NET_LAN92XX_GPMC_CONFIG6,
+};
+
+int board_eth_init(bd_t *bis)
+{
+ enable_gpmc_cs_config(gpmc_lan92xx_config, &gpmc_cfg->cs[1],
+ CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
+
+ return smc911x_initialize(0, CONFIG_SMC911X_BASE);
+}
+#endif
+
+/*
+ * IEN - Input Enable
+ * IDIS - Input Disable
+ * PTD - Pull type Down
+ * PTU - Pull type Up
+ * DIS - Pull type selection is inactive
+ * EN - Pull type selection is active
+ * M0 - Mode 0
+ * The commented string gives the final mux configuration for that pin
+ */
+
+/*
+ * Routine: set_muxconf_regs
+ * Description: Setting up the configuration Mux registers specific to the
+ * hardware. Many pins need to be moved from protect to primary
+ * mode.
+ */
+void set_muxconf_regs(void)
+{
+ /*GPMC*/
+ MUX_VAL(CP(GPMC_A1), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A2), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A3), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A4), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A5), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A6), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A7), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A8), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A9), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_A10), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D0), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D1), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D2), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D3), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D4), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D5), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D6), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D7), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D8), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D9), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D10), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D11), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D12), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D13), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D14), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_D15), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_NCS0), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_NCS1), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_NCS2), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_NCS3), (IDIS | PTD | DIS | M0));
+ MUX_VAL(CP(GPMC_NCS5), (IDIS | PTU | DIS | M4));
+ MUX_VAL(CP(GPMC_NCS7), (IDIS | PTD | DIS | M1)); /*GPMC_IO_DIR*/
+ MUX_VAL(CP(GPMC_NBE0_CLE), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(GPMC_WAIT1), (IEN | PTU | EN | M0));
+
+ /*Expansion card */
+ MUX_VAL(CP(MMC1_CLK), (IDIS | PTU | EN | M0));
+ MUX_VAL(CP(MMC1_CMD), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(MMC1_DAT0), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(MMC1_DAT1), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(MMC1_DAT2), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(MMC1_DAT3), (IEN | PTU | EN | M0));
+
+ /* Serial Console */
+ MUX_VAL(CP(UART1_TX), (IDIS | PTD | DIS | M0));
+ MUX_VAL(CP(UART1_RTS), (IDIS | PTD | DIS | M0));
+ MUX_VAL(CP(UART1_CTS), (IEN | PTU | DIS | M0));
+ MUX_VAL(CP(UART1_RX), (IEN | PTD | DIS | M0));
+
+ /* I2C */
+ MUX_VAL(CP(I2C2_SCL), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(I2C2_SDA), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(I2C3_SCL), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(I2C3_SDA), (IEN | PTU | EN | M0));
+
+ MUX_VAL(CP(HDQ_SIO), (IEN | PTU | EN | M0));
+
+ /*Control and debug */
+ MUX_VAL(CP(SYS_NIRQ), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(SYS_OFF_MODE), (IEN | PTD | DIS | M0));
+ MUX_VAL(CP(SYS_CLKOUT1), (IEN | PTD | DIS | M0));
+ MUX_VAL(CP(SYS_CLKOUT2), (IEN | PTU | EN | M0));
+ MUX_VAL(CP(JTAG_nTRST), (IEN | PTD | DIS | M0));
+ MUX_VAL(CP(SDRC_CKE0), (IDIS | PTU | EN | M0));
+}
Code Review / kvmfornfv.git / blobdiff