diff options
| author | wdenk <wdenk> | 2004-06-06 23:13:55 +0000 | 
|---|---|---|
| committer | wdenk <wdenk> | 2004-06-06 23:13:55 +0000 | 
| commit | a56bd92289298bde16306bcc754277db45315d2f (patch) | |
| tree | 191b3ffdc97a005ddc973f7de85ef3b1d3768fd8 /board/omap730p2/omap730p2.c | |
| parent | 5ca2679933142f7bf2996590b2e318c298664748 (diff) | |
| download | olio-uboot-2014.01-a56bd92289298bde16306bcc754277db45315d2f.tar.xz olio-uboot-2014.01-a56bd92289298bde16306bcc754277db45315d2f.zip | |
* Patch by Dave Peverley, 30 Apr 2004:
  Add support for OMAP730 Perseus2 Development board
* Patch by Alan J. Luse, 29 Apr 2004:
  Fix flash chip-select (OR0) option register setting on FADS boards.
* Patch by Alan J. Luse, 29 Apr 2004:
  Report MII network speed and duplex setting properly when
  auto-negotiate is not enabled.
* Patch by Jarrett Redd, 29 Apr 2004:
  Fix hang on reset on Ocotea board due to flash in wrong mode.
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 000000000..5e2fa3b62 --- /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); +} |