diff options
Diffstat (limited to 'board/omap730p2/omap730p2.c')
| -rw-r--r-- | board/omap730p2/omap730p2.c | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/board/omap730p2/omap730p2.c b/board/omap730p2/omap730p2.c new file mode 100644 index 00000000000..5e2fa3b62eb --- /dev/null +++ b/board/omap730p2/omap730p2.c @@ -0,0 +1,272 @@ +/* + * (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 + +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) +{ + volatile unsigned int *IOConfReg; + + + DECLARE_GLOBAL_DATA_PTR; + + /* arch number of OMAP 730 P2 Board - Same as the Innovator! */ + gd->bd->bi_arch_number = 491; + + /* 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); +} |