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+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
+ *
+ * (C) Copyright 2003
+ * Texas Instruments, <www.ti.com>
+ * Kshitij Gupta <Kshitij@ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#if defined(CONFIG_OMAP730)
+#include <./configs/omap730.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int test_boot_mode(void);
+void spin_up_leds(void);
+void flash__init (void);
+void ether__init (void);
+void set_muxconf_regs (void);
+void peripheral_power_enable (void);
+
+#define FLASH_ON_CS0 1
+#define FLASH_ON_CS3 0
+
+static inline void delay (unsigned long loops)
+{
+ __asm__ volatile ("1:\n"
+ "subs %0, %1, #1\n"
+ "bne 1b":"=r" (loops):"0" (loops));
+}
+
+int test_boot_mode(void)
+{
+ /* Check for CS0 and CS3 address decode swapping */
+ if (*((volatile int *)EMIFS_CONFIG) & 0x00000002)
+ return(FLASH_ON_CS3);
+ else
+ return(FLASH_ON_CS0);
+}
+
+/* Toggle backup LED indication */
+void toggle_backup_led(void)
+{
+ static int backupLEDState = 0; /* Init variable so that the LED will be ON the first time */
+ volatile unsigned int *IOConfReg;
+
+
+ IOConfReg = (volatile unsigned int *) ((unsigned int) OMAP730_GPIO_BASE_5 + GPIO_DATA_OUTPUT);
+
+ if (backupLEDState != 0) {
+ *IOConfReg &= (0xFFFFEFFF);
+ backupLEDState = 0;
+ } else {
+ *IOConfReg |= (0x00001000);
+ backupLEDState = 1;
+ }
+}
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+
+int board_init (void)
+{
+ /* arch number of OMAP 730 P2 Board - Same as the Innovator! */
+ gd->bd->bi_arch_number = MACH_TYPE_OMAP_PERSEUS2;
+
+ /* adress of boot parameters */
+ gd->bd->bi_boot_params = 0x10000100;
+
+ /* Configure MUX settings */
+ set_muxconf_regs ();
+
+ peripheral_power_enable ();
+
+ /* Backup LED indication via GPIO_140 -> Red led if MUX correctly setup */
+ toggle_backup_led();
+
+ /* Hold GSM in reset until needed */
+ *((volatile unsigned short *)M_CTL) &= ~1;
+
+ /*
+ * CSx timings, GPIO Mux ... setup
+ */
+
+ /* Flash: CS0 timings setup */
+ *((volatile unsigned int *) FLASH_CFG_0) = 0x0000fff3;
+ *((volatile unsigned int *) FLASH_ACFG_0_1) = 0x00000088;
+
+ /* Ethernet support trough the debug board */
+ /* CS1 timings setup */
+ *((volatile unsigned int *) FLASH_CFG_1) = 0x0000fff3;
+ *((volatile unsigned int *) FLASH_ACFG_0_1) = 0x00000000;
+
+ /* this speeds up your boot a quite a bit. However to make it
+ * work, you need make sure your kernel startup flush bug is fixed.
+ * ... rkw ...
+ */
+ icache_enable ();
+
+ flash__init ();
+ ether__init ();
+
+ return 0;
+}
+
+int misc_init_r (void)
+{
+ /* currently empty */
+ return (0);
+}
+
+/******************************
+ Routine:
+ Description:
+******************************/
+void flash__init (void)
+{
+ unsigned int regval;
+
+ regval = *((volatile unsigned int *) EMIFS_CONFIG);
+ /* Turn off write protection for flash devices. */
+ regval = regval | 0x0001;
+ *((volatile unsigned int *) EMIFS_CONFIG) = regval;
+}
+
+/*************************************************************
+ Routine:ether__init
+ Description: take the Ethernet controller out of reset and wait
+ for the EEPROM load to complete.
+*************************************************************/
+void ether__init (void)
+{
+#define LAN_RESET_REGISTER 0x0400001c
+
+ *((volatile unsigned short *) LAN_RESET_REGISTER) = 0x0000;
+ do {
+ *((volatile unsigned short *) LAN_RESET_REGISTER) = 0x0001;
+ udelay (100);
+ } while (*((volatile unsigned short *) LAN_RESET_REGISTER) != 0x0001);
+
+ do {
+ *((volatile unsigned short *) LAN_RESET_REGISTER) = 0x0000;
+ udelay (100);
+ } while (*((volatile unsigned short *) LAN_RESET_REGISTER) != 0x0000);
+
+#define ETH_CONTROL_REG 0x0400030b
+
+ *((volatile unsigned char *) ETH_CONTROL_REG) &= ~0x01;
+ udelay (100);
+}
+
+/******************************
+ Routine:
+ Description:
+******************************/
+int dram_init (void)
+{
+ gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+ gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+ return 0;
+}
+
+/******************************************************
+ Routine: set_muxconf_regs
+ Description: Setting up the configuration Mux registers
+ specific to the hardware
+*******************************************************/
+void set_muxconf_regs (void)
+{
+ volatile unsigned int *MuxConfReg;
+ /* set each registers to its reset value; */
+
+ /*
+ * Backup LED Indication
+ */
+
+ /* Configure MUXed pin. Mode 6: GPIO_140 */
+ MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF10);
+ *MuxConfReg &= (0xFFFFFF1F); /* Clear D_MPU_LPG1 */
+ *MuxConfReg |= 0x000000C0; /* Set D_MPU_LPG1 to 0x6 */
+
+ /* Configure GPIO_140 as output */
+ MuxConfReg = (volatile unsigned int *) ((unsigned int) OMAP730_GPIO_BASE_5 + GPIO_DIRECTION_CONTROL);
+ *MuxConfReg &= (0xFFFFEFFF); /* Clear direction (output) for GPIO 140 */
+
+ /*
+ * Configure GPIOs for battery charge & feedback
+ */
+
+ /* Configure MUXed pin. Mode 6: GPIO_35 */
+ MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF3);
+ *MuxConfReg &= 0xFFFFFFF1; /* Clear M_CLK_OUT */
+ *MuxConfReg |= 0x0000000C; /* Set M_CLK_OUT = 0x6 (GPIOs) */
+
+ /* Configure MUXed pin. Mode 6: GPIO_72,73,74 */
+ MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF5);
+ *MuxConfReg &= 0xFFFF1FFF; /* Clear D_DDR */
+ *MuxConfReg |= 0x0000C000; /* Set D_DDR = 0x6 (GPIOs) */
+
+ MuxConfReg = (volatile unsigned int *) ((unsigned int) OMAP730_GPIO_BASE_3 + GPIO_DIRECTION_CONTROL);
+ *MuxConfReg |= 0x00000100; /* Configure GPIO_72 as input */
+ *MuxConfReg &= 0xFFFFFDFF; /* Configure GPIO_73 as output */
+
+ /*
+ * Allow battery charge
+ */
+
+ MuxConfReg = (volatile unsigned int *) ((unsigned int) OMAP730_GPIO_BASE_3 + GPIO_DATA_OUTPUT);
+ *MuxConfReg &= (0xFFFFFDFF); /* Clear GPIO_73 pin */
+
+ /*
+ * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
+ * It is used as the Ethernet controller interrupt
+ */
+ MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF9);
+ *MuxConfReg &= 0x1FFFFFFF;
+}
+
+/******************************************************
+ Routine: peripheral_power_enable
+ Description: Enable the power for UART1
+*******************************************************/
+void peripheral_power_enable (void)
+{
+ volatile unsigned int *MuxConfReg;
+
+
+ /* Set up pins used by UART */
+
+ /* Start UART clock (48MHz) */
+ MuxConfReg = (volatile unsigned int *) (PERSEUS_PCC_CONF_REG);
+ *MuxConfReg &= (0xFFFFFFF7);
+ *MuxConfReg |= (0x00000008);
+
+ /* Get the UART pin in mode0 */
+ MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF3);
+ *MuxConfReg &= (0xFF1FFFFF);
+ *MuxConfReg &= (0xF1FFFFFF);
+}