diff options
Diffstat (limited to 'board/v38b')
| -rw-r--r-- | board/v38b/Makefile | 50 | ||||
| -rw-r--r-- | board/v38b/config.mk | 32 | ||||
| -rw-r--r-- | board/v38b/ethaddr.c | 213 | ||||
| -rw-r--r-- | board/v38b/u-boot.lds | 125 | ||||
| -rw-r--r-- | board/v38b/v38b.c | 260 |
5 files changed, 680 insertions, 0 deletions
diff --git a/board/v38b/Makefile b/board/v38b/Makefile new file mode 100644 index 0000000000..b21bd6f6c5 --- /dev/null +++ b/board/v38b/Makefile @@ -0,0 +1,50 @@ +# +# (C) Copyright 2003-2006 +# 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 = $(obj)lib$(BOARD).a + +COBJS := $(BOARD).o ethaddr.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/v38b/config.mk b/board/v38b/config.mk new file mode 100644 index 0000000000..75577fcbec --- /dev/null +++ b/board/v38b/config.mk @@ -0,0 +1,32 @@ +# +# (C) Copyright 2003-2006 +# 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 +# + +# +# MarelV38B board +# + +sinclude $(TOPDIR)/board/$(BOARDDIR)/config.tmp + +TEXT_BASE = 0xFF000000 + +PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) -I$(TOPDIR)/board diff --git a/board/v38b/ethaddr.c b/board/v38b/ethaddr.c new file mode 100644 index 0000000000..4e2494eee5 --- /dev/null +++ b/board/v38b/ethaddr.c @@ -0,0 +1,213 @@ +/* + * (C) Copyright 2006 + * 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 <common.h> +#include <mpc5xxx.h> + +/* For the V38B board the pin is GPIO_PSC_6 */ +#define GPIO_PIN GPIO_PSC6_0 + +#define NO_ERROR 0 +#define ERR_NO_NUMBER 1 +#define ERR_BAD_NUMBER 2 + +static int is_high(void); +static int check_device(void); +static void io_out(int value); +static void io_input(void); +static void io_output(void); +static void init_gpio(void); +static void read_byte(unsigned char *data); +static void write_byte(unsigned char command); + +void read_2501_memory(unsigned char *psernum, unsigned char *perr); +void board_get_enetaddr(uchar *enetaddr); + + +static int is_high() +{ + return (*((vu_long *) MPC5XXX_WU_GPIO_DATA_I) & GPIO_PIN); +} + +static void io_out(int value) +{ + if (value) + *((vu_long *) MPC5XXX_WU_GPIO_DATA_O) |= GPIO_PIN; + else + *((vu_long *) MPC5XXX_WU_GPIO_DATA_O) &= ~GPIO_PIN; +} + +static void io_input() +{ + *((vu_long *) MPC5XXX_WU_GPIO_DIR) &= ~GPIO_PIN; + udelay(3); /* allow input to settle */ +} + +static void io_output() +{ + *((vu_long *) MPC5XXX_WU_GPIO_DIR) |= GPIO_PIN; +} + +static void init_gpio() +{ + *((vu_long *) MPC5XXX_WU_GPIO_ENABLE) |= GPIO_PIN; /* Enable appropriate pin */ +} + +void read_2501_memory(unsigned char *psernum, unsigned char *perr) +{ +#define NBYTES 28 + unsigned char crcval, i; + unsigned char buf[NBYTES]; + + *perr = 0; + crcval = 0; + + for (i = 0; i < NBYTES; i++) + buf[i] = 0; + + if (!check_device()) + *perr = ERR_NO_NUMBER; + else { + *perr = NO_ERROR; + write_byte(0xCC); /* skip ROM (0xCC) */ + write_byte(0xF0); /* Read memory command 0xF0 */ + write_byte(0x00); /* Address TA1=0, TA2=0 */ + write_byte(0x00); + read_byte(&crcval); /* Read CRC of address and command */ + + for (i = 0; i < NBYTES; i++) + read_byte(&buf[i]); + } + if (strncmp((const char *) &buf[11], "MAREL IEEE 802.3", 16)) { + *perr = ERR_BAD_NUMBER; + psernum[0] = 0x00; + psernum[1] = 0xE0; + psernum[2] = 0xEE; + psernum[3] = 0xFF; + psernum[4] = 0xFF; + psernum[5] = 0xFF; + } else { + psernum[0] = 0x00; + psernum[1] = 0xE0; + psernum[2] = 0xEE; + psernum[3] = buf[7]; + psernum[4] = buf[6]; + psernum[5] = buf[5]; + } +} + +static int check_device() +{ + int found; + + io_output(); + io_out(0); + udelay(500); /* must be at least 480 us low pulse */ + + io_input(); + udelay(60); + + found = (is_high() == 0) ? 1 : 0; + udelay(500); /* must be at least 480 us low pulse */ + + return found; +} + +static void write_byte(unsigned char command) +{ + char i; + + for (i = 0; i < 8; i++) { + /* 1 us to 15 us low pulse starts bit slot */ + /* Start with high pulse for 3 us */ + io_input(); + udelay(3); + + io_out(0); + io_output(); + udelay(3); + + if (command & 0x01) { + /* 60 us high for 1-bit */ + io_input(); + udelay(60); + } else + /* 60 us low for 0-bit */ + udelay(60); + /* Leave pin as input */ + io_input(); + + command = command >> 1; + } +} + +static void read_byte(unsigned char *data) +{ + unsigned char i, rdat = 0; + + for (i = 0; i < 8; i++) { + /* read one bit from one-wire device */ + + /* 1 - 15 us low starts bit slot */ + io_out(0); + io_output(); + udelay(0); + + /* allow line to be pulled high */ + io_input(); + + /* delay 10 us */ + udelay(10); + + /* now sample input status */ + if (is_high()) + rdat = (rdat >> 1) | 0x80; + else + rdat = rdat >> 1; + + udelay(60); /* at least 60 us */ + } + /* copy the return value */ + *data = rdat; +} + +void board_get_enetaddr(uchar *enetaddr) +{ + unsigned char sn[6], err = NO_ERROR; + + init_gpio(); + + read_2501_memory(sn, &err); + + if (err == NO_ERROR) { + sprintf((char *)enetaddr, "%02x:%02x:%02x:%02x:%02x:%02x", + sn[0], sn[1], sn[2], sn[3], sn[4], sn[5]); + printf("MAC address: %s\n", enetaddr); + setenv("ethaddr", (char *)enetaddr); + } else { + sprintf((char *)enetaddr, "00:01:02:03:04:05"); + printf("Error reading MAC address.\n"); + printf("Setting default to %s\n", enetaddr); + setenv("ethaddr", (char *)enetaddr); + } +} diff --git a/board/v38b/u-boot.lds b/board/v38b/u-boot.lds new file mode 100644 index 0000000000..4fdea6b783 --- /dev/null +++ b/board/v38b/u-boot.lds @@ -0,0 +1,125 @@ +/* + * (C) Copyright 2003-2006 + * 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 + */ + +OUTPUT_ARCH(powerpc) +SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib); +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + cpu/mpc5xxx/start.o (.text) + *(.text) + *(.fixup) + *(.got1) + . = ALIGN(16); + *(.rodata) + *(.rodata1) + *(.rodata.str1.4) + *(.eh_frame) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x0FFF) & 0xFFFFF000; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(4096); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(4096); + __init_end = .; + + __bss_start = .; + .bss : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } + _end = . ; + PROVIDE (end = .); +} diff --git a/board/v38b/v38b.c b/board/v38b/v38b.c new file mode 100644 index 0000000000..dede996880 --- /dev/null +++ b/board/v38b/v38b.c @@ -0,0 +1,260 @@ +/* + * (C) Copyright 2003-2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2004 + * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.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> +#include <mpc5xxx.h> +#include <asm/processor.h> + + +#ifndef CFG_RAMBOOT +static void sdram_start(int hi_addr) +{ + long hi_addr_bit = hi_addr ? 0x01000000 : 0; + + /* unlock mode register */ + *(vu_long *) MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit; + __asm__ volatile ("sync"); + + /* precharge all banks */ + *(vu_long *) MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit; + __asm__ volatile ("sync"); + +#if SDRAM_DDR + /* set mode register: extended mode */ + *(vu_long *) MPC5XXX_SDRAM_MODE = SDRAM_EMODE; + __asm__ volatile ("sync"); + + /* set mode register: reset DLL */ + *(vu_long *) MPC5XXX_SDRAM_MODE = SDRAM_MODE | 0x04000000; + __asm__ volatile ("sync"); +#endif /* SDRAM_DDR */ + + /* precharge all banks */ + *(vu_long *) MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit; + __asm__ volatile ("sync"); + + /* auto refresh */ + *(vu_long *) MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit; + __asm__ volatile ("sync"); + + /* set mode register */ + *(vu_long *) MPC5XXX_SDRAM_MODE = SDRAM_MODE; + __asm__ volatile ("sync"); + + /* normal operation */ + *(vu_long *) MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit; + __asm__ volatile ("sync"); +} +#endif /* !CFG_RAMBOOT */ + + +long int initdram(int board_type) +{ + ulong dramsize = 0; + ulong dramsize2 = 0; + uint svr, pvr; + +#ifndef CFG_RAMBOOT + ulong test1, test2; + + /* setup SDRAM chip selects */ + *(vu_long *) MPC5XXX_SDRAM_CS0CFG = 0x0000001e; /* 2G at 0x0 */ + *(vu_long *) MPC5XXX_SDRAM_CS1CFG = 0x80000000; /* disabled */ + __asm__ volatile ("sync"); + + /* setup config registers */ + *(vu_long *) MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1; + *(vu_long *) MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2; + __asm__ volatile ("sync"); + +#if SDRAM_DDR + /* set tap delay */ + *(vu_long *) MPC5XXX_CDM_PORCFG = SDRAM_TAPDELAY; + __asm__ volatile ("sync"); +#endif /* SDRAM_DDR */ + + /* find RAM size using SDRAM CS0 only */ + sdram_start(0); + test1 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000); + sdram_start(1); + test2 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000); + if (test1 > test2) { + sdram_start(0); + dramsize = test1; + } else + dramsize = test2; + + /* memory smaller than 1MB is impossible */ + if (dramsize < (1 << 20)) + dramsize = 0; + + /* set SDRAM CS0 size according to the amount of RAM found */ + if (dramsize > 0) + *(vu_long *) MPC5XXX_SDRAM_CS0CFG = 0x13 + __builtin_ffs(dramsize >> 20) - 1; + else + *(vu_long *) MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */ + + /* let SDRAM CS1 start right after CS0 */ + *(vu_long *) MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001e;/* 2G */ + + /* find RAM size using SDRAM CS1 only */ + if (!dramsize) + sdram_start(0); + test2 = test1 = get_ram_size((long *) (CFG_SDRAM_BASE + dramsize), 0x80000000); + if (!dramsize) { + sdram_start(1); + test2 = get_ram_size((long *) (CFG_SDRAM_BASE + dramsize), 0x80000000); + } + if (test1 > test2) { + sdram_start(0); + dramsize2 = test1; + } else + dramsize2 = test2; + + /* memory smaller than 1MB is impossible */ + if (dramsize2 < (1 << 20)) + dramsize2 = 0; + + /* set SDRAM CS1 size according to the amount of RAM found */ + if (dramsize2 > 0) + *(vu_long *) MPC5XXX_SDRAM_CS1CFG = dramsize + | (0x13 + __builtin_ffs(dramsize2 >> 20) - 1); + else + *(vu_long *) MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */ + +#else /* CFG_RAMBOOT */ + + /* retrieve size of memory connected to SDRAM CS0 */ + dramsize = *(vu_long *) MPC5XXX_SDRAM_CS0CFG & 0xFF; + if (dramsize >= 0x13) + dramsize = (1 << (dramsize - 0x13)) << 20; + else + dramsize = 0; + + /* retrieve size of memory connected to SDRAM CS1 */ + dramsize2 = *(vu_long *) MPC5XXX_SDRAM_CS1CFG & 0xFF; + if (dramsize2 >= 0x13) + dramsize2 = (1 << (dramsize2 - 0x13)) << 20; + else + dramsize2 = 0; + +#endif /* CFG_RAMBOOT */ + + /* + * On MPC5200B we need to set the special configuration delay in the + * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM + * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190: + * + * "The SDelay should be written to a value of 0x00000004. It is + * required to account for changes caused by normal wafer processing + * parameters." + */ + svr = get_svr(); + pvr = get_pvr(); + if ((SVR_MJREV(svr) >= 2) && + (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4)) { + + *(vu_long *) MPC5XXX_SDRAM_SDELAY = 0x04; + __asm__ volatile ("sync"); + } + + return dramsize + dramsize2; +} + + +int checkboard (void) +{ + puts("Board: MarelV38B\n"); + return 0; +} + + +int board_early_init_r(void) +{ + /* + * Now, when we are in RAM, enable flash write access for the + * detection process. Note that CS_BOOT cannot be cleared when + * executing in flash. + */ + *(vu_long *) MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */ + +#ifdef CONFIG_HW_WATCHDOG + /* + * Enable and configure the direction (output) of PSC3_9 - watchdog + * reset input. Refer to 7.3.2.2.[1,3,4] of the MPC5200B User's + * Manual. + */ + *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC3_9; + *(vu_long *) MPC5XXX_WU_GPIO_DIR |= GPIO_PSC3_9; +#endif /* CONFIG_HW_WATCHDOG */ + + /* + * Enable GPIO_WKUP_7 to "read the status of the actual power + * situation". Default direction is input, so no need to set it + * explicitly. + */ + *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_WKUP_7; + return 0; +} + + +#if defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET) +void init_ide_reset(void) +{ + debug("init_ide_reset\n"); + + /* Configure PSC1_4 as GPIO output for ATA reset */ + *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC1_4; + *(vu_long *) MPC5XXX_WU_GPIO_DIR |= GPIO_PSC1_4; + /* Deassert reset */ + *(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4; +} + + +void ide_set_reset(int idereset) +{ + debug("ide_reset(%d)\n", idereset); + + if (idereset) { + *(vu_long *) MPC5XXX_WU_GPIO_DATA_O &= ~GPIO_PSC1_4; + /* Make a delay. MPC5200 spec says 25 usec min */ + udelay(500000); + } else + *(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4; +} +#endif /* defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET) */ + + +#ifdef CONFIG_HW_WATCHDOG +void hw_watchdog_reset(void) +{ + /* + * MarelV38B has a TPS3705 watchdog. Spec says that to kick the dog + * we need a positive or negative transition on WDI i.e., our PSC3_9. + */ + *(vu_long *) MPC5XXX_WU_GPIO_DATA_O ^= GPIO_PSC3_9; +} +#endif /* CONFIG_HW_WATCHDOG */ |