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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>
*
* Modified for OMAP 1610 H2 board by Nishant Kamat, Jan 2004
*
* 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_OMAP1610)
#include <./configs/omap1510.h>
#endif
void flash__init (void);
void ether__init (void);
void set_muxconf_regs (void);
void peripheral_power_enable (void);
#define COMP_MODE_ENABLE ((unsigned int)0x0000EAEF)
static inline void delay (unsigned long loops)
{
__asm__ volatile ("1:\n"
"subs %0, %1, #1\n"
"bne 1b":"=r" (loops):"0" (loops));
}
/*
* Miscellaneous platform dependent initialisations
*/
int board_init (void)
{
DECLARE_GLOBAL_DATA_PTR;
/* arch number of OMAP 1510-Board */
/* to be changed for OMAP 1610 Board */
gd->bd->bi_arch_number = 234;
/* adress of boot parameters */
gd->bd->bi_boot_params = 0x10000100;
/* Configure MUX settings */
set_muxconf_regs ();
peripheral_power_enable ();
/* 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)
{
#define EMIFS_GlB_Config_REG 0xfffecc0c
unsigned int regval;
regval = *((volatile unsigned int *) EMIFS_GlB_Config_REG);
/* Turn off write protection for flash devices. */
regval = regval | 0x0001;
*((volatile unsigned int *) EMIFS_GlB_Config_REG) = 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 ETH_CONTROL_REG 0x0400030b
#ifdef CONFIG_H2_OMAP1610
#define LAN_RESET_REGISTER 0x0400001c
/* The debug board on which the lan chip resides may not be powered
* ON at the same time as the OMAP chip. So wait in a loop until the
* lan reset register (on the debug board) is available (powered on)
* and reset the lan chip.
*/
*((volatile unsigned short *) LAN_RESET_REGISTER) = 0x0000;
do {
*((volatile unsigned short *) LAN_RESET_REGISTER) = 0x0001;
udelay (3);
} while (*((volatile unsigned short *) LAN_RESET_REGISTER) != 0x0001);
do {
*((volatile unsigned short *) LAN_RESET_REGISTER) = 0x0000;
udelay (3);
} while (*((volatile unsigned short *) LAN_RESET_REGISTER) != 0x0000);
#endif
*((volatile unsigned char *) ETH_CONTROL_REG) &= ~0x01;
udelay (3);
}
/******************************
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; */
MuxConfReg =
(volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_0);
/* setup for UART1 */
*MuxConfReg &= ~(0x02000000); /* bit 25 */
/* setup for UART2 */
*MuxConfReg &= ~(0x01000000); /* bit 24 */
/* Disable Uwire CS Hi-Z */
*MuxConfReg |= 0x08000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_3);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_4);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_5);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_6);
/*setup mux for UART3 */
*MuxConfReg |= 0x00000001; /* bit3, 1, 0 (mux0 5,5,26) */
*MuxConfReg &= ~0x0000003e;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_7);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_8);
/* Disable Uwire CS Hi-Z */
*MuxConfReg |= 0x00001200; /*bit 9 for CS0 12 for CS3 */
MuxConfReg =
(volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_9);
/* Need to turn on bits 21 and 12 in FUNC_MUX_CTRL_9 so the */
/* hardware will actually use TX and RTS based on bit 25 in */
/* FUNC_MUX_CTRL_0. I told you this thing was screwy! */
*MuxConfReg |= 0x00201000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_A);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_B);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_C);
/* setup for UART2 */
/* Need to turn on bits 27 and 24 in FUNC_MUX_CTRL_C so the */
/* hardware will actually use TX and RTS based on bit 24 in */
/* FUNC_MUX_CTRL_0. */
*MuxConfReg |= 0x09000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_0);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_1);
*MuxConfReg = 0x00000000;
/* mux setup for SD/MMC driver */
MuxConfReg =
(volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_2);
*MuxConfReg &= 0xFFFE0FFF;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_3);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) MOD_CONF_CTRL_0);
/* bit 13 for MMC2 XOR_CLK */
*MuxConfReg &= ~(0x00002000);
/* bit 29 for UART 1 */
*MuxConfReg &= ~(0x00002000);
MuxConfReg =
(volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_0);
/* Configure for USB. Turn on VBUS_CTRL and VBUS_MODE. */
*MuxConfReg |= 0x000C0000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int)USB_TRANSCEIVER_CTRL);
*MuxConfReg &= ~(0x00000070);
*MuxConfReg &= ~(0x00000008);
*MuxConfReg |= 0x00000003;
*MuxConfReg |= 0x00000180;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) MOD_CONF_CTRL_0);
/* bit 17, software controls VBUS */
*MuxConfReg &= ~(0x00020000);
/* Enable USB 48 and 12M clocks */
*MuxConfReg |= 0x00000200;
*MuxConfReg &= ~(0x00000180);
/*2.75V for MMCSDIO1 */
MuxConfReg =
(volatile unsigned int *) ((unsigned int) VOLTAGE_CTRL_0);
*MuxConfReg = 0x00001FE7;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) PU_PD_SEL_0);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) PU_PD_SEL_1);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) PU_PD_SEL_2);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) PU_PD_SEL_3);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) PU_PD_SEL_4);
*MuxConfReg = 0x00000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_4);
*MuxConfReg = 0x00000000;
/* Turn on UART2 48 MHZ clock */
MuxConfReg =
(volatile unsigned int *) ((unsigned int) MOD_CONF_CTRL_0);
*MuxConfReg |= 0x40000000;
MuxConfReg =
(volatile unsigned int *) ((unsigned int) USB_OTG_CTRL);
/* setup for USB VBus detection OMAP161x */
*MuxConfReg |= 0x00040000; /* bit 18 */
MuxConfReg =
(volatile unsigned int *) ((unsigned int) PU_PD_SEL_2);
/* PullUps for SD/MMC driver */
*MuxConfReg |= ~(0xFFFE0FFF);
MuxConfReg =
(volatile unsigned int *) ((unsigned int)COMP_MODE_CTRL_0);
*MuxConfReg = COMP_MODE_ENABLE;
}
/******************************************************
Routine: peripheral_power_enable
Description: Enable the power for UART1
*******************************************************/
void peripheral_power_enable (void)
{
#define UART1_48MHZ_ENABLE ((unsigned short)0x0200)
#define SW_CLOCK_REQUEST ((volatile unsigned short *)0xFFFE0834)
*SW_CLOCK_REQUEST |= UART1_48MHZ_ENABLE;
}
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