/* * (C) Copyright 2002 * Sysgo Real-Time Solutions, GmbH * Marius Groeger * * (C) Copyright 2002 * David Mueller, ELSOFT AG, * * (C) Copyright 2003 * Texas Instruments, * Kshitij Gupta * * 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 #include #if defined(CONFIG_OMAP1610) #include <./configs/omap1510.h> #endif #ifdef CONFIG_CS_AUTOBOOT unsigned long omap_flash_base; #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; if (machine_is_omap_h2()) gd->bd->bi_arch_number = MACH_TYPE_OMAP_H2; else if (machine_is_omap_innovator()) gd->bd->bi_arch_number = MACH_TYPE_OMAP_INNOVATOR; else gd->bd->bi_arch_number = MACH_TYPE_OMAP_GENERIC; /* 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; #ifdef CONFIG_CS_AUTOBOOT /* Check swapping of CS0 and CS3, set flash base accordingly */ omap_flash_base = ((*((u32 *)OMAP_EMIFS_CONFIG_REG) & 0x02) == 0) ? PHYS_FLASH_1_BM0 : PHYS_FLASH_1_BM1; #endif 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; }