From a56bd92289298bde16306bcc754277db45315d2f Mon Sep 17 00:00:00 2001 From: wdenk Date: Sun, 6 Jun 2004 23:13:55 +0000 Subject: * 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. --- board/omap730p2/Makefile | 47 +++++ board/omap730p2/config.mk | 25 +++ board/omap730p2/flash.c | 477 ++++++++++++++++++++++++++++++++++++++++++++ board/omap730p2/omap730p2.c | 272 +++++++++++++++++++++++++ board/omap730p2/platform.S | 395 ++++++++++++++++++++++++++++++++++++ board/omap730p2/u-boot.lds | 51 +++++ 6 files changed, 1267 insertions(+) create mode 100644 board/omap730p2/Makefile create mode 100644 board/omap730p2/config.mk create mode 100644 board/omap730p2/flash.c create mode 100644 board/omap730p2/omap730p2.c create mode 100644 board/omap730p2/platform.S create mode 100644 board/omap730p2/u-boot.lds (limited to 'board/omap730p2') diff --git a/board/omap730p2/Makefile b/board/omap730p2/Makefile new file mode 100644 index 0000000..1058508 --- /dev/null +++ b/board/omap730p2/Makefile @@ -0,0 +1,47 @@ +# +# (C) Copyright 2000, 2001, 2002 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# 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 $(TOPDIR)/config.mk + +LIB = lib$(BOARD).a + +OBJS := omap730p2.o flash.o +SOBJS := platform.o + +$(LIB): $(OBJS) $(SOBJS) + $(AR) crv $@ $^ + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c) + $(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@ + +-include .depend + +######################################################################### diff --git a/board/omap730p2/config.mk b/board/omap730p2/config.mk new file mode 100644 index 0000000..16bff6f --- /dev/null +++ b/board/omap730p2/config.mk @@ -0,0 +1,25 @@ +# +# (C) Copyright 2002 +# Gary Jennejohn, DENX Software Engineering, +# David Mueller, ELSOFT AG, +# +# (C) Copyright 2003 +# Texas Instruments, +# Kshitij Gupta +# +# TI Perseus 2 board with OMAP720 (ARM925EJS) cpu +# see http://www.ti.com/ for more information on Texas Instruments +# +# Innovator has 1 bank of 256 MB SDRAM +# Physical Address: +# 1000'0000 to 2000'0000 +# +# +# Linux-Kernel is expected to be at 1000'8000, entry 1000'8000 +# (mem base + reserved) +# +# we load ourself to 1108'0000 +# +# + +TEXT_BASE = 0x11080000 diff --git a/board/omap730p2/flash.c b/board/omap730p2/flash.c new file mode 100644 index 0000000..e7d6515 --- /dev/null +++ b/board/omap730p2/flash.c @@ -0,0 +1,477 @@ +/* + * (C) Copyright 2001 + * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net + * + * (C) Copyright 2001 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2003 + * Texas Instruments, + * Kshitij Gupta + * + * 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 + +#define PHYS_FLASH_SECT_SIZE 0x00020000 /* 256 KB sectors (x2) */ +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ + +/* Board support for 1 or 2 flash devices */ +#undef FLASH_PORT_WIDTH32 +#define FLASH_PORT_WIDTH16 + +#ifdef FLASH_PORT_WIDTH16 +#define FLASH_PORT_WIDTH ushort +#define FLASH_PORT_WIDTHV vu_short +#define SWAP(x) __swab16(x) +#else +#define FLASH_PORT_WIDTH ulong +#define FLASH_PORT_WIDTHV vu_long +#define SWAP(x) __swab32(x) +#endif + +#define FPW FLASH_PORT_WIDTH +#define FPWV FLASH_PORT_WIDTHV + +#define mb() __asm__ __volatile__ ("" : : : "memory") + + +/* Flash Organization Structure */ +typedef struct OrgDef { + unsigned int sector_number; + unsigned int sector_size; +} OrgDef; + + +/* Flash Organizations */ +OrgDef OrgIntel_28F256L18T[] = { + {4, 32 * 1024}, /* 4 * 32kBytes sectors */ + {255, 128 * 1024}, /* 255 * 128kBytes sectors */ +}; + + +/*----------------------------------------------------------------------- + * Functions + */ +unsigned long flash_init (void); +static ulong flash_get_size (FPW * addr, flash_info_t * info); +static int write_data (flash_info_t * info, ulong dest, FPW data); +static void flash_get_offsets (ulong base, flash_info_t * info); +void inline spin_wheel (void); +void flash_print_info (flash_info_t * info); +void flash_unprotect_sectors (FPWV * addr); +int flash_erase (flash_info_t * info, int s_first, int s_last); +int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt); + +/*----------------------------------------------------------------------- + */ + +unsigned long flash_init (void) +{ + int i; + ulong size = 0; + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) { + switch (i) { + case 0: + flash_get_size ((FPW *) PHYS_FLASH_1, &flash_info[i]); + flash_get_offsets (PHYS_FLASH_1, &flash_info[i]); + break; + default: + panic ("configured too many flash banks!\n"); + break; + } + size += flash_info[i].size; + } + + /* Protect monitor and environment sectors + */ + flash_protect (FLAG_PROTECT_SET, + CFG_FLASH_BASE, + CFG_FLASH_BASE + monitor_flash_len - 1, &flash_info[0]); + + flash_protect (FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]); + + return size; +} + +/*----------------------------------------------------------------------- + */ +static void flash_get_offsets (ulong base, flash_info_t * info) +{ + int i; + OrgDef *pOrgDef; + + pOrgDef = OrgIntel_28F256L18T; + if (info->flash_id == FLASH_UNKNOWN) { + return; + } + + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { + for (i = 0; i < info->sector_count; i++) { + if (i > 255) { + info->start[i] = base + (i * 0x8000); + info->protect[i] = 0; + } else { + info->start[i] = base + + (i * PHYS_FLASH_SECT_SIZE); + info->protect[i] = 0; + } + } + } +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t * info) +{ + int i; + + if (info->flash_id == FLASH_UNKNOWN) { + printf ("missing or unknown FLASH type\n"); + return; + } + + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_INTEL: + printf ("INTEL "); + break; + default: + printf ("Unknown Vendor "); + break; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_28F256L18T: + printf ("FLASH 28F256L18T\n"); + break; + default: + printf ("Unknown Chip Type\n"); + break; + } + + printf (" Size: %ld MB in %d Sectors\n", + info->size >> 20, info->sector_count); + + printf (" Sector Start Addresses:"); + for (i = 0; i < info->sector_count; ++i) { + if ((i % 5) == 0) + printf ("\n "); + printf (" %08lX%s", + info->start[i], info->protect[i] ? " (RO)" : " "); + } + printf ("\n"); + return; +} + +/* + * The following code cannot be run from FLASH! + */ +static ulong flash_get_size (FPW * addr, flash_info_t * info) +{ + volatile FPW value; + + /* Write auto select command: read Manufacturer ID */ + addr[0x5555] = (FPW) 0x00AA00AA; + addr[0x2AAA] = (FPW) 0x00550055; + addr[0x5555] = (FPW) 0x00900090; + + mb (); + value = addr[0]; + + switch (value) { + + case (FPW) INTEL_MANUFACT: + info->flash_id = FLASH_MAN_INTEL; + break; + + default: + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ + return (0); /* no or unknown flash */ + } + + mb (); + value = addr[1]; /* device ID */ + switch (value) { + + case (FPW) (INTEL_ID_28F256L18T): + info->flash_id += FLASH_28F256L18T; + info->sector_count = 259; + info->size = 0x02000000; + break; /* => 32 MB */ + + default: + info->flash_id = FLASH_UNKNOWN; + break; + } + + if (info->sector_count > CFG_MAX_FLASH_SECT) { + printf ("** ERROR: sector count %d > max (%d) **\n", + info->sector_count, CFG_MAX_FLASH_SECT); + info->sector_count = CFG_MAX_FLASH_SECT; + } + + addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ + + return (info->size); +} + + +/* unprotects a sector for write and erase + * on some intel parts, this unprotects the entire chip, but it + * wont hurt to call this additional times per sector... + */ +void flash_unprotect_sectors (FPWV * addr) +{ +#define PD_FINTEL_WSMS_READY_MASK 0x0080 + + *addr = (FPW) 0x00500050; /* clear status register */ + + /* this sends the clear lock bit command */ + *addr = (FPW) 0x00600060; + *addr = (FPW) 0x00D000D0; +} + + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t * info, int s_first, int s_last) +{ + int flag, prot, sect; + ulong type, start, last; + int rcode = 0; + + if ((s_first < 0) || (s_first > s_last)) { + if (info->flash_id == FLASH_UNKNOWN) { + printf ("- missing\n"); + } else { + printf ("- no sectors to erase\n"); + } + return 1; + } + + type = (info->flash_id & FLASH_VENDMASK); + if ((type != FLASH_MAN_INTEL)) { + printf ("Can't erase unknown flash type %08lx - aborted\n", + info->flash_id); + return 1; + } + + prot = 0; + for (sect = s_first; sect <= s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + + if (prot) { + printf ("- Warning: %d protected sectors will not be erased!\n", + prot); + } else { + printf ("\n"); + } + + + start = get_timer (0); + last = start; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect <= s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + FPWV *addr = (FPWV *) (info->start[sect]); + FPW status; + + printf ("Erasing sector %2d ... ", sect); + + flash_unprotect_sectors (addr); + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked (); + + *addr = (FPW) 0x00500050;/* clear status register */ + *addr = (FPW) 0x00200020;/* erase setup */ + *addr = (FPW) 0x00D000D0;/* erase confirm */ + + while (((status = + *addr) & (FPW) 0x00800080) != + (FPW) 0x00800080) { + if (get_timer_masked () > + CFG_FLASH_ERASE_TOUT) { + printf ("Timeout\n"); + /* suspend erase */ + *addr = (FPW) 0x00B000B0; + /* reset to read mode */ + *addr = (FPW) 0x00FF00FF; + rcode = 1; + break; + } + } + + /* clear status register cmd. */ + *addr = (FPW) 0x00500050; + *addr = (FPW) 0x00FF00FF;/* resest to read mode */ + printf (" done\n"); + } + } + return rcode; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + * 4 - Flash not identified + */ + +int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) +{ + ulong cp, wp; + FPW data; + int count, i, l, rc, port_width; + + if (info->flash_id == FLASH_UNKNOWN) { + return 4; + } +/* get lower word aligned address */ +#ifdef FLASH_PORT_WIDTH16 + wp = (addr & ~1); + port_width = 2; +#else + wp = (addr & ~3); + port_width = 4; +#endif + + /* + * handle unaligned start bytes + */ + if ((l = addr - wp) != 0) { + data = 0; + for (i = 0, cp = wp; i < l; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } + for (; i < port_width && cnt > 0; ++i) { + data = (data << 8) | *src++; + --cnt; + ++cp; + } + for (; cnt == 0 && i < port_width; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } + + if ((rc = write_data (info, wp, SWAP (data))) != 0) { + return (rc); + } + wp += port_width; + } + + /* + * handle word aligned part + */ + count = 0; + while (cnt >= port_width) { + data = 0; + for (i = 0; i < port_width; ++i) { + data = (data << 8) | *src++; + } + if ((rc = write_data (info, wp, SWAP (data))) != 0) { + return (rc); + } + wp += port_width; + cnt -= port_width; + if (count++ > 0x800) { + spin_wheel (); + count = 0; + } + } + + if (cnt == 0) { + return (0); + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) { + data = (data << 8) | *src++; + --cnt; + } + for (; i < port_width; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } + + return (write_data (info, wp, SWAP (data))); +} + +/*----------------------------------------------------------------------- + * Write a word or halfword to Flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ +static int write_data (flash_info_t * info, ulong dest, FPW data) +{ + FPWV *addr = (FPWV *) dest; + ulong status; + int flag; + + /* Check if Flash is (sufficiently) erased */ + if ((*addr & data) != data) { + printf ("not erased at %08lx (%x)\n", (ulong) addr, *addr); + return (2); + } + flash_unprotect_sectors (addr); + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + *addr = (FPW) 0x00400040; /* write setup */ + *addr = data; + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked (); + + /* wait while polling the status register */ + while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { + if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) { + *addr = (FPW) 0x00FF00FF; /* restore read mode */ + return (1); + } + } + *addr = (FPW) 0x00FF00FF; /* restore read mode */ + return (0); +} + +void inline spin_wheel (void) +{ + static int p = 0; + static char w[] = "\\/-"; + + printf ("\010%c", w[p]); + (++p == 3) ? (p = 0) : 0; +} diff --git a/board/omap730p2/omap730p2.c b/board/omap730p2/omap730p2.c new file mode 100644 index 0000000..5e2fa3b --- /dev/null +++ b/board/omap730p2/omap730p2.c @@ -0,0 +1,272 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Marius Groeger + * + * (C) Copyright 2002 + * David Mueller, ELSOFT AG, + * + * (C) Copyright 2003 + * Texas Instruments, + * Kshitij Gupta + * + * 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 +#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); +} diff --git a/board/omap730p2/platform.S b/board/omap730p2/platform.S new file mode 100644 index 0000000..1f1c95a --- /dev/null +++ b/board/omap730p2/platform.S @@ -0,0 +1,395 @@ +/* + * Board specific setup info + * + * (C) Copyright 2003-2004 + * + * Texas Instruments, + * Kshitij Gupta + * + * Modified for OMAP 1610 H2 board by Nishant Kamat, Jan 2004 + * + * Modified for OMAP730 P2 Board by Dave Peverley, MPC-Data Limited + * (http://www.mpc-data.co.uk) + * + * TODO : Tidy up and change to use system register defines + * from omap730.h where possible. + * + * 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_OMAP730) +#include <./configs/omap730.h> +#endif + +_TEXT_BASE: + .word TEXT_BASE /* sdram load addr from config.mk */ + +.globl platformsetup +platformsetup: + /* Save callers address in r11 - r11 must never be modified */ + mov r11, lr + + /*------------------------------------------------------* + *mask all IRQs by setting all bits in the INTMR default* + *------------------------------------------------------*/ + mov r1, #0xffffffff + ldr r0, =REG_IHL1_MIR + str r1, [r0] + ldr r0, =REG_IHL2_MIR + str r1, [r0] + + /*------------------------------------------------------* + * Set up ARM CLM registers (IDLECT1) * + *------------------------------------------------------*/ + ldr r0, REG_ARM_IDLECT1 + ldr r1, VAL_ARM_IDLECT1 + str r1, [r0] + + /*------------------------------------------------------* + * Set up ARM CLM registers (IDLECT2) * + *------------------------------------------------------*/ + ldr r0, REG_ARM_IDLECT2 + ldr r1, VAL_ARM_IDLECT2 + str r1, [r0] + + /*------------------------------------------------------* + * Set up ARM CLM registers (IDLECT3) * + *------------------------------------------------------*/ + ldr r0, REG_ARM_IDLECT3 + ldr r1, VAL_ARM_IDLECT3 + str r1, [r0] + + + mov r1, #0x01 /* PER_EN bit */ + ldr r0, REG_ARM_RSTCT2 + strh r1, [r0] /* CLKM; Peripheral reset. */ + + /* Set CLKM to Sync-Scalable */ + /* I supposedly need to enable the dsp clock before switching */ + mov r1, #0x1000 + ldr r0, REG_ARM_SYSST + strh r1, [r0] + mov r0, #0x400 +1: + subs r0, r0, #0x1 /* wait for any bubbles to finish */ + bne 1b + ldr r1, VAL_ARM_CKCTL + ldr r0, REG_ARM_CKCTL + strh r1, [r0] + + /* a few nops to let settle */ + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + + /* setup DPLL 1 */ + /* Ramp up the clock to 96Mhz */ + ldr r1, VAL_DPLL1_CTL + ldr r0, REG_DPLL1_CTL + strh r1, [r0] + ands r1, r1, #0x10 /* Check if PLL is enabled. */ + beq lock_end /* Do not look for lock if BYPASS selected */ +2: + ldrh r1, [r0] + ands r1, r1, #0x01 /* Check the LOCK bit.*/ + beq 2b /* loop until bit goes hi. */ +lock_end: + + /*------------------------------------------------------* + * Turn off the watchdog during init... * + *------------------------------------------------------*/ + ldr r0, REG_WATCHDOG + ldr r1, WATCHDOG_VAL1 + str r1, [r0] + ldr r1, WATCHDOG_VAL2 + str r1, [r0] + ldr r0, REG_WSPRDOG + ldr r1, WSPRDOG_VAL1 + str r1, [r0] + ldr r0, REG_WWPSDOG + +watch1Wait: + ldr r1, [r0] + tst r1, #0x10 + bne watch1Wait + + ldr r0, REG_WSPRDOG + ldr r1, WSPRDOG_VAL2 + str r1, [r0] + ldr r0, REG_WWPSDOG +watch2Wait: + ldr r1, [r0] + tst r1, #0x10 + bne watch2Wait + + /* Set memory timings corresponding to the new clock speed */ + + /* Check execution location to determine current execution location + * and branch to appropriate initialization code. + */ + /* Compare physical SDRAM base & current execution location. */ + and r0, pc, #0xF0000000 + /* Compare. */ + cmp r0, #0 + /* Skip over EMIF-fast initialization if running from SDRAM. */ + bne skip_sdram + + /* + * Delay for SDRAM initialization. + */ + mov r3, #0x1800 /* value should be checked */ +3: + subs r3, r3, #0x1 /* Decrement count */ + bne 3b + + ldr r0, REG_SDRAM_CONFIG + ldr r1, SDRAM_CONFIG_VAL + str r1, [r0] + + ldr r0, REG_SDRAM_MRS_LEGACY + ldr r1, SDRAM_MRS_VAL + str r1, [r0] + +skip_sdram: + +common_tc: + /* slow interface */ + ldr r1, VAL_TC_EMIFS_CS0_CONFIG + ldr r0, REG_TC_EMIFS_CS0_CONFIG + str r1, [r0] /* Chip Select 0 */ + + ldr r1, VAL_TC_EMIFS_CS1_CONFIG + ldr r0, REG_TC_EMIFS_CS1_CONFIG + str r1, [r0] /* Chip Select 1 */ + ldr r1, VAL_TC_EMIFS_CS2_CONFIG + ldr r0, REG_TC_EMIFS_CS2_CONFIG + str r1, [r0] /* Chip Select 2 */ + ldr r1, VAL_TC_EMIFS_CS3_CONFIG + ldr r0, REG_TC_EMIFS_CS3_CONFIG + str r1, [r0] /* Chip Select 3 */ + + /* 48MHz clock request for UART1 */ + ldr r1, PERSEUS2_CONFIG_BASE + ldrh r0, [r1, #CONFIG_PCC_CONF] + orr r0, r0, #CONF_MOD_UART1_CLK_MODE_R + strh r0, [r1, #CONFIG_PCC_CONF] + + /* Initialize public and private rheas + * - set access factor 2 on both rhea / strobe + * - disable write buffer on strb0, enable write buffer on strb1 + */ + + ldr R0, REG_RHEA_PUB_CTL + ldr R1, REG_RHEA_PRIV_CTL + ldr R2, VAL_RHEA_CTL + strh R2, [R0] + strh R2, [R1] + mov R3, #2 /* disable write buffer on strb0, enable write buffer on strb1 */ + strh R3, [R0, #0x08] /* arm rhea control reg */ + strh R3, [R1, #0x08] + + /* enable IRQ and FIQ */ + + mrs r4, CPSR + bic r4, r4, #IRQ_MASK + bic r4, r4, #FIQ_MASK + msr CPSR, r4 + + /* set TAP CONF to TRI EMULATION */ + + ldr r1, [r0, #CONFIG_MODE2] + bic r1, r1, #0x18 + orr r1, r1, #0x10 + str r1, [r0, #CONFIG_MODE2] + + /* set tdbgen to 1 */ + + ldr r0, PERSEUS2_CONFIG_BASE + ldr r1, [r0, #CONFIG_MODE1] + mov r2, #0x10000 + orr r1, r1, r2 + str r1, [r0, #CONFIG_MODE1] + +#ifdef CONFIG_P2_OMAP1610 + /* inserting additional 2 clock cycle hold time for LAN */ + ldr r0, REG_TC_EMIFS_CS1_ADVANCED + ldr r1, VAL_TC_EMIFS_CS1_ADVANCED + str r1, [r0] +#endif + /* Start MPU Timer 1 */ + ldr r0, REG_MPU_LOAD_TIMER + ldr r1, VAL_MPU_LOAD_TIMER + str r1, [r0] + + ldr r0, REG_MPU_CNTL_TIMER + ldr r1, VAL_MPU_CNTL_TIMER + str r1, [r0] + + /* back to arch calling code */ + mov pc, r11 + + /* the literal pools origin */ + .ltorg + +REG_TC_EMIFS_CONFIG: /* 32 bits */ + .word 0xfffecc0c +REG_TC_EMIFS_CS0_CONFIG: /* 32 bits */ + .word 0xfffecc10 +REG_TC_EMIFS_CS1_CONFIG: /* 32 bits */ + .word 0xfffecc14 +REG_TC_EMIFS_CS2_CONFIG: /* 32 bits */ + .word 0xfffecc18 +REG_TC_EMIFS_CS3_CONFIG: /* 32 bits */ + .word 0xfffecc1c + +#ifdef CONFIG_P2_OMAP730 +REG_TC_EMIFS_CS1_ADVANCED: /* 32 bits */ + .word 0xfffecc54 +#endif + +/* MPU clock/reset/power mode control registers */ +REG_ARM_CKCTL: /* 16 bits */ + .word 0xfffece00 + +REG_ARM_IDLECT3: /* 16 bits */ + .word 0xfffece24 +REG_ARM_IDLECT2: /* 16 bits */ + .word 0xfffece08 +REG_ARM_IDLECT1: /* 16 bits */ + .word 0xfffece04 + +REG_ARM_RSTCT2: /* 16 bits */ + .word 0xfffece14 +REG_ARM_SYSST: /* 16 bits */ + .word 0xfffece18 +/* DPLL control registers */ +REG_DPLL1_CTL: /* 16 bits */ + .word 0xfffecf00 + +/* Watch Dog register */ +/* secure watchdog stop */ +REG_WSPRDOG: + .word 0xfffeb048 +/* watchdog write pending */ +REG_WWPSDOG: + .word 0xfffeb034 + +WSPRDOG_VAL1: + .word 0x0000aaaa +WSPRDOG_VAL2: + .word 0x00005555 + +/* SDRAM config is: auto refresh enabled, 16 bit 4 bank, + counter @8192 rows, 10 ns, 8 burst */ +REG_SDRAM_CONFIG: + .word 0xfffecc20 + +REG_SDRAM_MRS_LEGACY: + .word 0xfffecc24 + +REG_WATCHDOG: + .word 0xfffec808 + +REG_MPU_LOAD_TIMER: + .word 0xfffec600 +REG_MPU_CNTL_TIMER: + .word 0xfffec500 + +/* Public and private rhea bridge registers definition */ + +REG_RHEA_PUB_CTL: + .word 0xFFFECA00 + +REG_RHEA_PRIV_CTL: + .word 0xFFFED300 + +/* EMIFF SDRAM Configuration register + - self refresh disable + - auto refresh enabled + - SDRAM type 64 Mb, 16 bits bus 4 banks + - power down enabled + - SDRAM clock disabled + */ +SDRAM_CONFIG_VAL: + .word 0x0C017DF4 + +/* Burst full page length ; cas latency = 3 */ +SDRAM_MRS_VAL: + .word 0x00000037 + +VAL_ARM_CKCTL: + .word 0x6505 +VAL_DPLL1_CTL: + .word 0x3412 + +#ifdef CONFIG_P2_OMAP730 +VAL_TC_EMIFS_CS0_CONFIG: + .word 0x0000FFF3 +VAL_TC_EMIFS_CS1_CONFIG: + .word 0x00004278 +VAL_TC_EMIFS_CS2_CONFIG: + .word 0x00004278 +VAL_TC_EMIFS_CS3_CONFIG: + .word 0x00004278 +VAL_TC_EMIFS_CS1_ADVANCED: + .word 0x00000022 +#endif + +VAL_ARM_IDLECT1: + .word 0x00000400 +VAL_ARM_IDLECT2: + .word 0x00000886 +VAL_ARM_IDLECT3: + .word 0x00000015 + +WATCHDOG_VAL1: + .word 0x000000f5 +WATCHDOG_VAL2: + .word 0x000000a0 + +VAL_MPU_LOAD_TIMER: + .word 0xffffffff +VAL_MPU_CNTL_TIMER: + .word 0xffffffa1 + +VAL_RHEA_CTL: + .word 0xFF22 + +/* Config Register vals */ +PERSEUS2_CONFIG_BASE: + .word 0xFFFE1000 + +.equ CONFIG_PCC_CONF, 0xB4 +.equ CONFIG_MODE1, 0x10 +.equ CONFIG_MODE2, 0x14 +.equ CONF_MOD_UART1_CLK_MODE_R, 0x0A + +/* misc values */ +.equ IRQ_MASK, 0x80 // IRQ mask value +.equ FIQ_MASK, 0x40 // FIQ mask value diff --git a/board/omap730p2/u-boot.lds b/board/omap730p2/u-boot.lds new file mode 100644 index 0000000..eee4813 --- /dev/null +++ b/board/omap730p2/u-boot.lds @@ -0,0 +1,51 @@ +/* + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, + * + * 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 + */ + +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{ + . = 0x00000000; + . = ALIGN(4); + .text : + { + cpu/arm926ejs/start.o (.text) + *(.text) + } + . = ALIGN(4); + .rodata : { *(.rodata) } + . = ALIGN(4); + .data : { *(.data) } + . = ALIGN(4); + .got : { *(.got) } + + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + . = ALIGN(4); + __bss_start = .; + .bss : { *(.bss) } + _end = .; +} -- cgit v1.1