diff options
Diffstat (limited to 'board/omap5912osk/omap5912osk.c')
| -rw-r--r-- | board/omap5912osk/omap5912osk.c | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/board/omap5912osk/omap5912osk.c b/board/omap5912osk/omap5912osk.c new file mode 100644 index 0000000..27457a1 --- /dev/null +++ b/board/omap5912osk/omap5912osk.c @@ -0,0 +1,294 @@ +/* + * (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> + * + * (C) Copyright 2004 + * Texas Instruments, <www.ti.com> + * Rishi Bhattacharya <rishi@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_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 0x0480000b + int i; + + *((volatile unsigned short *) 0xfffece08) = 0x03FF; + *((volatile unsigned short *) 0xfffb3824) = 0x8000; + *((volatile unsigned short *) 0xfffb3830) = 0x0000; + *((volatile unsigned short *) 0xfffb3834) = 0x0009; + *((volatile unsigned short *) 0xfffb3838) = 0x0009; + *((volatile unsigned short *) 0xfffb3818) = 0x0002; + *((volatile unsigned short *) 0xfffb382C) = 0x0048; + *((volatile unsigned short *) 0xfffb3824) = 0x8603; + udelay (3); + for (i=0;i<2000;i++); + *((volatile unsigned short *) 0xfffb381C) = 0x6610; + udelay (30); + for (i=0;i<10000;i++); + + *((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) FUNC_MUX_CTRL_D); + *MuxConfReg |= 0x00000020; + 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; +} |