/* * (C) Copyright 2002 * Sysgo Real-Time Solutions, GmbH * Marius Groeger * * (C) Copyright 2002 * David Mueller, ELSOFT AG, * * (C) Copyright 2003 * Texas Instruments, * Kshitij Gupta * * 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 #if defined(CONFIG_OMAP730) #include <./configs/omap730.h> #endif 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) { DECLARE_GLOBAL_DATA_PTR; /* 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) { DECLARE_GLOBAL_DATA_PTR; 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); }