From: wdenk Date: Tue, 24 Feb 2004 00:16:43 +0000 (+0000) Subject: * Patch by Andrea Scian, 17 Feb 2004: X-Git-Tag: LABEL_2004_02_24_0305~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=074cff0d2863bab21b065cf283eccd728f4fecaa;p=kernel%2Fu-boot.git * Patch by Andrea Scian, 17 Feb 2004: Add support for S3C44B0 processor and DAVE B2 board * Patch by Steven Scholz, 20 Feb 2004: - Add support for MII commands on AT91RM9200 boards - some cleanup in AT91RM9200 ethernet code --- diff --git a/CHANGELOG b/CHANGELOG index d87b0a4..f636d3d 100644 --- a/CHANGELOG +++ b/CHANGELOG @@ -2,6 +2,13 @@ Changes for U-Boot 1.0.2: ====================================================================== +* Patch by Andrea Scian, 17 Feb 2004: + Add support for S3C44B0 processor and DAVE B2 board + +* Patch by Steven Scholz, 20 Feb 2004: + - Add support for MII commands on AT91RM9200 boards + - some cleanup in AT91RM9200 ethernet code + * Patch by Peter Ryser, 20 Feb 2004: Add support for the Xilinx ML300 platform diff --git a/MAKEALL b/MAKEALL index 2fa71b6..a099980 100644 --- a/MAKEALL +++ b/MAKEALL @@ -128,7 +128,7 @@ LIST_SA="dnp1110 lart shannon" ## ARM7 Systems ######################################################################### -LIST_ARM7="ep7312 impa7" +LIST_ARM7="B2 ep7312 impa7" ######################################################################### ## ARM9 Systems diff --git a/Makefile b/Makefile index 044b5ca..6dab719 100644 --- a/Makefile +++ b/Makefile @@ -969,6 +969,14 @@ trab_old_config: unconfig VCMA9_config : unconfig @./mkconfig $(@:_config=) arm arm920t vcma9 mpl + +######################################################################### +## S3C44B0 Systems +######################################################################### + +B2_config : unconfig + @./mkconfig $(@:_config=) arm s3c44b0 B2 dave + ######################################################################### ## ARM720T Systems ######################################################################### diff --git a/board/dave/B2/Makefile b/board/dave/B2/Makefile new file mode 100644 index 0000000..c0c3f67 --- /dev/null +++ b/board/dave/B2/Makefile @@ -0,0 +1,48 @@ +# +# (C) Copyright 2002 +# Sysgo Real-Time Solutions, GmbH +# Marius Groeger +# +# 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 := B2.o flash.o +SOBJS := memsetup.o + +$(LIB): $(OBJS) $(SOBJS) + $(AR) crv $@ $(OBJS) $(SOBJS) + +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/dave/B2/config.mk b/board/dave/B2/config.mk new file mode 100644 index 0000000..5216622 --- /dev/null +++ b/board/dave/B2/config.mk @@ -0,0 +1,30 @@ +# +# (C) Copyright 2000 +# Sysgo Real-Time Solutions, GmbH +# Marius Groeger +# +# (C) Copyright 2000-2004 +# 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 +# + +TEXT_BASE = 0x0C100000 + +PLATFORM_CPPFLAGS += -Uarm diff --git a/board/dave/B2/flash.c b/board/dave/B2/flash.c new file mode 100644 index 0000000..50aa6aa --- /dev/null +++ b/board/dave/B2/flash.c @@ -0,0 +1,79 @@ +/* + * (C) Copyright 2001 + * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.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 +#include + +/* + * include common flash code (for esd boards) + */ +#include "../common/flash.c" + +/*----------------------------------------------------------------------- + * Functions + */ +static ulong flash_get_size (vu_long * addr, flash_info_t * info); +static void flash_get_offsets (ulong base, flash_info_t * info); + +/*----------------------------------------------------------------------- + */ + +unsigned long flash_init (void) +{ +#ifdef __DEBUG_START_FROM_SRAM__ + return CFG_DUMMY_FLASH_SIZE; +#else + unsigned long size_b0; + int i; + uint pbcr; + unsigned long base_b0; + int size_val = 0; + + /* Init: no FLASHes known */ + for (i=0; i -#include #include flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ @@ -578,15 +577,27 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) if ((l = addr - wp) != 0) { data = 0; for (i=0, cp=wp; i0; ++i) { +#ifdef CONFIG_B2 + data = data | ((*src++)<<(8*i)); +#else data = (data << 8) | *src++; +#endif --cnt; ++cp; } for (; cnt==0 && i<4; ++i, ++cp) { +#ifdef CONFIG_B2 + data = data | ((*(uchar *)cp)<<(8*i)); +#else data = (data << 8) | (*(uchar *)cp); +#endif } if ((rc = write_word(info, wp, data)) != 0) { @@ -600,9 +611,14 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) */ while (cnt >= 4) { data = 0; +#ifdef CONFIG_B2 + data = (*(ulong*)src); + src += 4; +#else for (i=0; i<4; ++i) { data = (data << 8) | *src++; } +#endif if ((rc = write_word(info, wp, data)) != 0) { return (rc); } @@ -619,11 +635,19 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) */ data = 0; for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { +#ifdef CONFIG_B2 + data = data | ((*src++)<<(8*i)); +#else data = (data << 8) | *src++; +#endif --cnt; } for (; i<4; ++i, ++cp) { +#ifdef CONFIG_B2 + data = data | ((*(uchar *)cp)<<(8*i)); +#else data = (data << 8) | (*(uchar *)cp); +#endif } return (write_word(info, wp, data)); diff --git a/cpu/at91rm9200/at91rm9200_ether.c b/cpu/at91rm9200/at91rm9200_ether.c index 347a57b..3428a9e 100644 --- a/cpu/at91rm9200/at91rm9200_ether.c +++ b/cpu/at91rm9200/at91rm9200_ether.c @@ -310,8 +310,9 @@ static UCHAR at91rm9200_EmacReadPhy (AT91PS_EMAC p_mac, unsigned short *pInput) { p_mac->EMAC_MAN = (AT91C_EMAC_HIGH & ~AT91C_EMAC_LOW) | - (AT91C_EMAC_CODE_802_3) | (AT91C_EMAC_RW_R) | - (RegisterAddress << 18); + (AT91C_EMAC_RW_R) | + (RegisterAddress << 18) | + (AT91C_EMAC_CODE_802_3); udelay (10000); @@ -421,8 +422,14 @@ int eth_init (bd_t * bd) p_mac->EMAC_RBQP = (long) (&rbfdt[0]); p_mac->EMAC_RSR &= ~(AT91C_EMAC_RSR_OVR | AT91C_EMAC_REC | AT91C_EMAC_BNA); - p_mac->EMAC_CFG = (p_mac->EMAC_CFG | AT91C_EMAC_CAF | AT91C_EMAC_NBC | AT91C_EMAC_RMII) + + p_mac->EMAC_CFG = (p_mac->EMAC_CFG | AT91C_EMAC_CAF | AT91C_EMAC_NBC) & ~AT91C_EMAC_CLK; + +#ifdef CONFIG_AT91C_USE_RMII + p_mac->EMAC_CFG |= AT91C_EMAC_RMII; +#endif + p_mac->EMAC_CTL |= AT91C_EMAC_TE | AT91C_EMAC_RE; return 0; @@ -462,5 +469,25 @@ int eth_rx (void) void eth_halt (void) { }; + +#if (CONFIG_COMMANDS & CFG_CMD_MII) +int miiphy_read(unsigned char addr, unsigned char reg, unsigned short * value) +{ + at91rm9200_EmacEnableMDIO (p_mac); + at91rm9200_EmacReadPhy (p_mac, reg, value); + at91rm9200_EmacDisableMDIO (p_mac); + return 0; +} + +int miiphy_write(unsigned char addr, unsigned char reg, unsigned short value) +{ + at91rm9200_EmacEnableMDIO (p_mac); + at91rm9200_EmacWritePhy (p_mac, reg, &value); + at91rm9200_EmacDisableMDIO (p_mac); + return 0; +} +#endif /* CONFIG_COMMANDS & CFG_CMD_MII */ + #endif /* CONFIG_COMMANDS & CFG_CMD_NET */ + #endif /* CONFIG_DRIVER_ETHER */ diff --git a/cpu/s3c44b0/Makefile b/cpu/s3c44b0/Makefile new file mode 100644 index 0000000..d43c73e --- /dev/null +++ b/cpu/s3c44b0/Makefile @@ -0,0 +1,43 @@ +# +# (C) Copyright 2000-2004 +# 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 $(TOPDIR)/config.mk + +LIB = lib$(CPU).a + +START = start.o +OBJS = serial.o interrupts.o cpu.o + +all: .depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) crv $@ $(OBJS) + +######################################################################### + +.depend: Makefile $(START:.o=.S) $(OBJS:.o=.c) + $(CC) -M $(CFLAGS) $(START:.o=.S) $(OBJS:.o=.c) > $@ + +sinclude .depend + +######################################################################### diff --git a/cpu/s3c44b0/config.mk b/cpu/s3c44b0/config.mk new file mode 100644 index 0000000..a1c5dd1 --- /dev/null +++ b/cpu/s3c44b0/config.mk @@ -0,0 +1,28 @@ +# +# (C) Copyright 2002 +# Sysgo Real-Time Solutions, GmbH +# Marius Groeger +# +# 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 +# + +PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -ffixed-r8 \ + -mshort-load-bytes -msoft-float + +PLATFORM_CPPFLAGS += -mapcs-32 -march=armv4 -mtune=arm7tdmi -msoft-float diff --git a/cpu/s3c44b0/cpu.c b/cpu/s3c44b0/cpu.c new file mode 100644 index 0000000..1a8a17d --- /dev/null +++ b/cpu/s3c44b0/cpu.c @@ -0,0 +1,511 @@ +/* + * (C) Copyright 2004 + * DAVE Srl + * http://www.dave-tech.it + * http://www.wawnet.biz + * mailto:info@wawnet.biz + * + * 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 + */ + +/* + * S3C44B0 CPU specific code + */ + +#include +#include +#include + +static void s3c44b0_flush_cache(void) +{ + volatile int i; + /* flush cycle */ + for(i=0x10002000;i<0x10004800;i+=16) + { + *((int *)i)=0x0; + } +} + + +int cpu_init (void) +{ + icache_enable(); + + return 0; +} + +int cleanup_before_linux (void) +{ + /* + cache memory should be enabled before calling + Linux to make the kernel uncompression faster + */ + icache_enable(); + + disable_interrupts (); + + return 0; +} + +void reset_cpu (ulong addr) +{ + /* + reset the cpu using watchdog + */ + + /* Disable the watchdog.*/ + WTCON&=~(1<<5); + + /* set the timeout value to a short time... */ + WTCNT = 0x1; + + /* Enable the watchdog. */ + WTCON|=1; + WTCON|=(1<<5); + + while(1) { + /*NOP*/ + } +} + +int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + extern void reset_cpu (ulong addr); + + disable_interrupts (); + reset_cpu (0); + + /*NOTREACHED*/ + return (0); +} + +void icache_enable (void) +{ + ulong reg; + + s3c44b0_flush_cache(); + + /* + Init cache + Non-cacheable area (everything outside RAM) + 0x0000:0000 - 0x0C00:0000 + */ + NCACHBE0 = 0xC0000000; + NCACHBE1 = 0x00000000; + + /* + Enable chache + */ + reg = SYSCFG; + reg |= 0x00000006; /* 8kB */ + SYSCFG = reg; +} + +void icache_disable (void) +{ + ulong reg; + + reg = SYSCFG; + reg &= ~0x00000006; /* 8kB */ + SYSCFG = reg; +} + +int icache_status (void) +{ + return 0; +} + +void dcache_enable (void) +{ + icache_enable(); +} + +void dcache_disable (void) +{ + icache_disable(); +} + +int dcache_status (void) +{ + return dcache_status(); +} + +/* + RTC stuff +*/ +#include +#ifndef BCD2HEX + #define BCD2HEX(n) ((n>>4)*10+(n&0x0f)) +#endif +#ifndef HEX2BCD + #define HEX2BCD(x) ((((x) / 10) << 4) + (x) % 10) +#endif + +void rtc_get (struct rtc_time* tm) +{ + RTCCON |= 1; + tm->tm_year = BCD2HEX(BCDYEAR); + tm->tm_mon = BCD2HEX(BCDMON); + tm->tm_wday = BCD2HEX(BCDDATE); + tm->tm_mday = BCD2HEX(BCDDAY); + tm->tm_hour = BCD2HEX(BCDHOUR); + tm->tm_min = BCD2HEX(BCDMIN); + tm->tm_sec = BCD2HEX(BCDSEC); + + if (tm->tm_sec==0) { + /* we have to re-read the rtc data because of the "one second deviation" problem */ + /* see RTC datasheet for more info about it */ + tm->tm_year = BCD2HEX(BCDYEAR); + tm->tm_mon = BCD2HEX(BCDMON); + tm->tm_mday = BCD2HEX(BCDDAY); + tm->tm_wday = BCD2HEX(BCDDATE); + tm->tm_hour = BCD2HEX(BCDHOUR); + tm->tm_min = BCD2HEX(BCDMIN); + tm->tm_sec = BCD2HEX(BCDSEC); + } + + RTCCON &= ~1; + + if(tm->tm_year >= 70) + tm->tm_year += 1900; + else + tm->tm_year += 2000; +} + +void rtc_set (struct rtc_time* tm) +{ + if(tm->tm_year < 2000) + tm->tm_year -= 1900; + else + tm->tm_year -= 2000; + + RTCCON |= 1; + BCDYEAR = HEX2BCD(tm->tm_year); + BCDMON = HEX2BCD(tm->tm_mon); + BCDDAY = HEX2BCD(tm->tm_mday); + BCDDATE = HEX2BCD(tm->tm_wday); + BCDHOUR = HEX2BCD(tm->tm_hour); + BCDMIN = HEX2BCD(tm->tm_min); + BCDSEC = HEX2BCD(tm->tm_sec); + RTCCON &= 1; +} + +void rtc_reset (void) +{ + RTCCON |= 1; + BCDYEAR = 0; + BCDMON = 0; + BCDDAY = 0; + BCDDATE = 0; + BCDHOUR = 0; + BCDMIN = 0; + BCDSEC = 0; + RTCCON &= 1; +} + + +/* + I2C stuff +*/ + +/* + * Initialization, must be called once on start up, may be called + * repeatedly to change the speed and slave addresses. + */ +void i2c_init(int speed, int slaveaddr) +{ + /* + setting up I2C support + */ + unsigned int save_F,save_PF,rIICCON,rPCONA,rPDATA,rPCONF,rPUPF; + + save_F = PCONF; + save_PF = PUPF; + + rPCONF = ((save_F & ~(0xF))| 0xa); + rPUPF = (save_PF | 0x3); + PCONF = rPCONF; /*PF0:IICSCL, PF1:IICSDA*/ + PUPF = rPUPF; /* Disable pull-up */ + + /* Configuring pin for WC pin of EEprom */ + rPCONA = PCONA; + rPCONA &= ~(1<<9); + PCONA = rPCONA; + + rPDATA = PDATA; + rPDATA &= ~(1<<9); + PDATA = rPDATA; + + /* + Enable ACK, IICCLK=MCLK/16, enable interrupt + 75Mhz/16/(12+1) = 390625 Hz + */ + rIICCON=(1<<7)|(0<<6)|(1<<5)|(0xC); + IICCON = rIICCON; + + IICADD = slaveaddr; +} + +/* + * Probe the given I2C chip address. Returns 0 if a chip responded, + * not 0 on failure. + */ +int i2c_probe(uchar chip) +{ + /* + not implemented + */ + + printf(__FUNCTION__ " chip %d\n", (int) chip); + return -1; +} + +/* + * Read/Write interface: + * chip: I2C chip address, range 0..127 + * addr: Memory (register) address within the chip + * alen: Number of bytes to use for addr (typically 1, 2 for larger + * memories, 0 for register type devices with only one + * register) + * buffer: Where to read/write the data + * len: How many bytes to read/write + * + * Returns: 0 on success, not 0 on failure + */ + +#define S3C44B0X_rIIC_INTPEND (1<<4) +#define S3C44B0X_rIIC_LAST_RECEIV_BIT (1<<0) +#define S3C44B0X_rIIC_INTERRUPT_ENABLE (1<<5) +#define S3C44B0_IIC_TIMEOUT 100 + +int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len) +{ + + int k, j, temp; + u32 rIICSTAT; + + /* + send the device offset + */ + + rIICSTAT = 0xD0; + IICSTAT = rIICSTAT; + + IICDS = chip; /* this is a write operation... */ + + rIICSTAT |= (1<<5); + IICSTAT = rIICSTAT; + + for(k=0; k +#include + +#include + +extern void reset_cpu(ulong addr); + +/* we always count down the max. */ +#define TIMER_LOAD_VAL 0xffff + +/* macro to read the 16 bit timer */ +#define READ_TIMER (TCNTO1 & 0xffff) + +#ifdef CONFIG_USE_IRQ +#error CONFIG_USE_IRQ NOT supported +#else +void enable_interrupts (void) +{ + return; +} +int disable_interrupts (void) +{ + return 0; +} +#endif + + +void bad_mode (void) +{ + panic ("Resetting CPU ...\n"); + reset_cpu (0); +} + +void show_regs (struct pt_regs *regs) +{ + unsigned long flags; + const char *processor_modes[] = + { "USER_26", "FIQ_26", "IRQ_26", "SVC_26", "UK4_26", "UK5_26", + "UK6_26", "UK7_26", + "UK8_26", "UK9_26", "UK10_26", "UK11_26", "UK12_26", "UK13_26", + "UK14_26", "UK15_26", + "USER_32", "FIQ_32", "IRQ_32", "SVC_32", "UK4_32", "UK5_32", + "UK6_32", "ABT_32", + "UK8_32", "UK9_32", "UK10_32", "UND_32", "UK12_32", "UK13_32", + "UK14_32", "SYS_32" + }; + + flags = condition_codes (regs); + + printf ("pc : [<%08lx>] lr : [<%08lx>]\n" + "sp : %08lx ip : %08lx fp : %08lx\n", + instruction_pointer (regs), + regs->ARM_lr, regs->ARM_sp, regs->ARM_ip, regs->ARM_fp); + printf ("r10: %08lx r9 : %08lx r8 : %08lx\n", + regs->ARM_r10, regs->ARM_r9, regs->ARM_r8); + printf ("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n", + regs->ARM_r7, regs->ARM_r6, regs->ARM_r5, regs->ARM_r4); + printf ("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n", + regs->ARM_r3, regs->ARM_r2, regs->ARM_r1, regs->ARM_r0); + printf ("Flags: %c%c%c%c", + flags & CC_N_BIT ? 'N' : 'n', + flags & CC_Z_BIT ? 'Z' : 'z', + flags & CC_C_BIT ? 'C' : 'c', flags & CC_V_BIT ? 'V' : 'v'); + printf (" IRQs %s FIQs %s Mode %s%s\n", + interrupts_enabled (regs) ? "on" : "off", + fast_interrupts_enabled (regs) ? "on" : "off", + processor_modes[processor_mode (regs)], + thumb_mode (regs) ? " (T)" : ""); +} + +void do_undefined_instruction (struct pt_regs *pt_regs) +{ + printf ("undefined instruction\n"); + show_regs (pt_regs); + bad_mode (); +} + +void do_software_interrupt (struct pt_regs *pt_regs) +{ + printf ("software interrupt\n"); + show_regs (pt_regs); + bad_mode (); +} + +void do_prefetch_abort (struct pt_regs *pt_regs) +{ + printf ("prefetch abort\n"); + show_regs (pt_regs); + bad_mode (); +} + +void do_data_abort (struct pt_regs *pt_regs) +{ + printf ("data abort\n"); + show_regs (pt_regs); + bad_mode (); +} + +void do_not_used (struct pt_regs *pt_regs) +{ + printf ("not used\n"); + show_regs (pt_regs); + bad_mode (); +} + +void do_fiq (struct pt_regs *pt_regs) +{ + printf ("fast interrupt request\n"); + show_regs (pt_regs); + bad_mode (); +} + +void do_irq (struct pt_regs *pt_regs) +{ + printf ("interrupt request\n"); + show_regs (pt_regs); + bad_mode (); +} + +static ulong timestamp; +static ulong lastdec; + +int interrupt_init (void) +{ + TCFG0 = 0x000000E9; + TCFG1 = 0x00000004; + TCON = 0x00000900; + TCNTB1 = TIMER_LOAD_VAL; + TCMPB1 = 0; + TCON = 0x00000B00; + TCON = 0x00000900; + + + lastdec = TCNTB1 = TIMER_LOAD_VAL; + timestamp = 0; + return 0; +} + +/* + * timer without interrupts + */ + +void reset_timer (void) +{ + reset_timer_masked (); +} + +ulong get_timer (ulong base) +{ + return get_timer_masked () - base; +} + +void set_timer (ulong t) +{ + timestamp = t; +} + +void udelay (unsigned long usec) +{ + ulong tmo; + + tmo = usec / 1000; + tmo *= CFG_HZ; + tmo /= 8; + + tmo += get_timer (0); + + while (get_timer_masked () < tmo) + /*NOP*/; +} + +void reset_timer_masked (void) +{ + /* reset time */ + lastdec = READ_TIMER; + timestamp = 0; +} + +ulong get_timer_masked (void) +{ + ulong now = READ_TIMER; + + if (lastdec >= now) { + /* normal mode */ + timestamp += lastdec - now; + } else { + /* we have an overflow ... */ + timestamp += lastdec + TIMER_LOAD_VAL - now; + } + lastdec = now; + + return timestamp; +} + +void udelay_masked (unsigned long usec) +{ + ulong tmo; + + tmo = usec / 1000; + tmo *= CFG_HZ; + tmo /= 8; + + tmo += get_timer (0); + + reset_timer_masked (); + + while (get_timer_masked () < tmo) + /*NOP*/; +} diff --git a/cpu/s3c44b0/serial.c b/cpu/s3c44b0/serial.c new file mode 100644 index 0000000..61ccfc7 --- /dev/null +++ b/cpu/s3c44b0/serial.c @@ -0,0 +1,218 @@ +/* + * (C) Copyright 2004 + * DAVE Srl + * http://www.dave-tech.it + * http://www.wawnet.biz + * mailto:info@wawnet.biz + * + * (C) Copyright 2002-2004 + * Wolfgang Denk, DENX Software Engineering, + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Marius Groeger + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Alex Zuepke + * + * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) + * + * 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 + +/* flush serial input queue. returns 0 on success or negative error + * number otherwise + */ +static int serial_flush_input(void) +{ + volatile u32 tmp; + + /* keep on reading as long as the receiver is not empty */ + while(UTRSTAT0&0x01) { + tmp = REGB(URXH0); + } + + return 0; +} + + +/* flush output queue. returns 0 on success or negative error number + * otherwise + */ +static int serial_flush_output(void) +{ + /* wait until the transmitter is no longer busy */ + while(!(UTRSTAT0 & 0x02)) { + } + + return 0; +} + + +void serial_setbrg (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + u32 divisor = 0; + + /* get correct divisor */ + switch(gd->baudrate) { + + case 1200: +#if CONFIG_S3C44B0_CLOCK_SPEED==66 + divisor = 3124; +#elif CONFIG_S3C44B0_CLOCK_SPEED==75 + divisor = 3905; +#else +# error CONFIG_S3C44B0_CLOCK_SPEED undefined +#endif + break; + + case 9600: +#if CONFIG_S3C44B0_CLOCK_SPEED==66 + divisor = 390; +#elif CONFIG_S3C44B0_CLOCK_SPEED==75 + divisor = 487; +#else +# error CONFIG_S3C44B0_CLOCK_SPEED undefined +#endif + break; + + case 19200: +#if CONFIG_S3C44B0_CLOCK_SPEED==66 + divisor = 194; +#elif CONFIG_S3C44B0_CLOCK_SPEED==75 + divisor = 243; +#else +# error CONFIG_S3C44B0_CLOCK_SPEED undefined +#endif + break; + + case 38400: +#if CONFIG_S3C44B0_CLOCK_SPEED==66 + divisor = 97; +#elif CONFIG_S3C44B0_CLOCK_SPEED==75 + divisor = 121; +#else +# error CONFIG_S3C44B0_CLOCK_SPEED undefined +#endif break; + + case 57600: +#if CONFIG_S3C44B0_CLOCK_SPEED==66 + divisor = 64; +#elif CONFIG_S3C44B0_CLOCK_SPEED==75 + divisor = 80; +#else +# error CONFIG_S3C44B0_CLOCK_SPEED undefined +#endif break; + + case 115200: +#if CONFIG_S3C44B0_CLOCK_SPEED==66 + divisor = 32; +#elif CONFIG_S3C44B0_CLOCK_SPEED==75 + divisor = 40; +#else +# error CONFIG_S3C44B0_CLOCK_SPEED undefined +#endif break; + } + + serial_flush_output(); + serial_flush_input(); + UFCON0 = 0x0; + ULCON0 = 0x03; + UCON0 = 0x05; + UBRDIV0 = divisor; + + UFCON1 = 0x0; + ULCON1 = 0x03; + UCON1 = 0x05; + UBRDIV1 = divisor; + + for(divisor=0; divisor<100; divisor++) { + /* NOP */ + } +} + + +/* + * Initialise the serial port with the given baudrate. The settings + * are always 8 data bits, no parity, 1 stop bit, no start bits. + * + */ +int serial_init (void) +{ + serial_setbrg (); + + return (0); +} + + +/* + * Output a single byte to the serial port. + */ +void serial_putc (const char c) +{ + /* wait for room in the transmit FIFO */ + while(!(UTRSTAT0 & 0x02)); + + UTXH0 = (unsigned char)c; + + /* + to be polite with serial console add a line feed + to the carriage return character + */ + if (c=='\n') + serial_putc('\r'); +} + +/* + * Read a single byte from the serial port. Returns 1 on success, 0 + * otherwise. When the function is succesfull, the character read is + * written into its argument c. + */ +int serial_tstc (void) +{ + return (UTRSTAT0 & 0x01); +} + +/* + * Read a single byte from the serial port. Returns 1 on success, 0 + * otherwise. When the function is succesfull, the character read is + * written into its argument c. + */ +int serial_getc (void) +{ + int rv; + + for(;;) { + rv = serial_tstc(); + + if(rv > 0) + return URXH0; + } +} + +void +serial_puts (const char *s) +{ + while (*s) { + serial_putc (*s++); + } +} diff --git a/cpu/s3c44b0/start.S b/cpu/s3c44b0/start.S new file mode 100644 index 0000000..ce31ec9 --- /dev/null +++ b/cpu/s3c44b0/start.S @@ -0,0 +1,271 @@ +/* + * Startup Code for S3C44B0 CPU-core + * + * (C) Copyright 2004 + * DAVE Srl + * + * http://www.dave-tech.it + * http://www.wawnet.biz + * mailto:info@wawnet.biz + * + * 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 + + +/* + * Jump vector table + */ + + +.globl _start +_start: b reset + add pc, pc, #0x0c000000 + add pc, pc, #0x0c000000 + add pc, pc, #0x0c000000 + add pc, pc, #0x0c000000 + add pc, pc, #0x0c000000 + add pc, pc, #0x0c000000 + add pc, pc, #0x0c000000 + + .balignl 16,0xdeadbeef + + +/* + ************************************************************************* + * + * Startup Code (reset vector) + * + * do important init only if we don't start from memory! + * relocate u-boot to ram + * setup stack + * jump to second stage + * + ************************************************************************* + */ + +_TEXT_BASE: + .word TEXT_BASE + +.globl _armboot_start +_armboot_start: + .word _start + +/* + * Note: _armboot_end_data and _armboot_end are defined + * by the (board-dependent) linker script. + * _armboot_end_data is the first usable FLASH address after armboot + */ +.globl _armboot_end_data +_armboot_end_data: + .word armboot_end_data +.globl _armboot_end +_armboot_end: + .word armboot_end + +#ifdef CONFIG_USE_IRQ +/* IRQ stack memory (calculated at run-time) */ +.globl IRQ_STACK_START +IRQ_STACK_START: + .word 0x0badc0de + +/* IRQ stack memory (calculated at run-time) */ +.globl FIQ_STACK_START +FIQ_STACK_START: + .word 0x0badc0de +#endif + + +/* + * the actual reset code + */ + +reset: + /* + * set the cpu to SVC32 mode + */ + mrs r0,cpsr + bic r0,r0,#0x1f + orr r0,r0,#0x13 + msr cpsr,r0 + + /* + * we do sys-critical inits only at reboot, + * not when booting from ram! + */ + +#ifdef CONFIG_INIT_CRITICAL + bl cpu_init_crit + /* + * before relocating, we have to setup RAM timing + * because memory timing is board-dependend, you will + * find a memsetup.S in your board directory. + */ + bl memsetup +#endif + +relocate: /* relocate U-Boot to RAM */ + adr r0, _start /* r0 <- current position of code */ + ldr r1, _TEXT_BASE /* test if we run from flash or RAM */ + cmp r0, r1 /* don't reloc during debug */ + beq stack_setup + + ldr r2, _armboot_start + ldr r3, _armboot_end + sub r2, r3, r2 /* r2 <- size of armboot */ + add r2, r0, r2 /* r2 <- source end address */ + +copy_loop: + ldmia r0!, {r3-r10} /* copy from source address [r0] */ + stmia r1!, {r3-r10} /* copy to target address [r1] */ + cmp r0, r2 /* until source end addreee [r2] */ + ble copy_loop + +/* + now copy to sram the interrupt vector +*/ + adr r0, real_vectors + add r2, r0, #1024 + ldr r1, =0x0c000000 + add r1, r1, #0x08 +vector_copy_loop: + ldmia r0!, {r3-r10} + stmia r1!, {r3-r10} + cmp r0, r2 + ble vector_copy_loop + + /* Set up the stack */ +stack_setup: + ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */ + sub r0, r0, #CFG_MALLOC_LEN /* malloc area */ + sub r0, r0, #CFG_GBL_DATA_SIZE /* bdinfo */ +#ifdef CONFIG_USE_IRQ + sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ) +#endif + sub sp, r0, #12 /* leave 3 words for abort-stack */ + + ldr pc, _start_armboot + +_start_armboot: .word start_armboot + + +/* + ************************************************************************* + * + * CPU_init_critical registers + * + * setup important registers + * setup memory timing + * + ************************************************************************* + */ + +#define INTCON (0x01c00000+0x200000) +#define INTMSK (0x01c00000+0x20000c) +#define LOCKTIME (0x01c00000+0x18000c) +#define PLLCON (0x01c00000+0x180000) +#define CLKCON (0x01c00000+0x180004) +#define WTCON (0x01c00000+0x130000) +cpu_init_crit: + /* disable watch dog */ + ldr r0, =WTCON + ldr r1, =0x0 + str r1, [r0] + + /* + * mask all IRQs by clearing all bits in the INTMRs + */ + ldr r1,=INTMSK + ldr r0, =0x03fffeff + str r0, [r1] + + ldr r1, =INTCON + ldr r0, =0x05 + str r0, [r1] + + /* Set Clock Control Register */ + ldr r1, =LOCKTIME + ldrb r0, =800 + strb r0, [r1] + + ldr r1, =PLLCON + +#if CONFIG_S3C44B0_CLOCK_SPEED==66 + ldr r0, =0x34031 /* 66MHz (Quartz=11MHz) */ +#elif CONFIG_S3C44B0_CLOCK_SPEED==75 + ldr r0, =0x610c1 /*B2: Xtal=20mhz Fclk=75MHz */ +#else +# error CONFIG_S3C44B0_CLOCK_SPEED undefined +#endif + + str r0, [r1] + + ldr r1,=CLKCON + ldr r0, =0x7ff8 + str r0, [r1] + + mov pc, lr + + +/*************************************************/ +/* interrupt vectors */ +/*************************************************/ +real_vectors: + b reset + b undefined_instruction + b software_interrupt + b prefetch_abort + b data_abort + b not_used + b irq + b fiq + +/*************************************************/ + +undefined_instruction: + mov r6, #3 + b reset + +software_interrupt: + mov r6, #4 + b reset + +prefetch_abort: + mov r6, #5 + b reset + +data_abort: + mov r6, #6 + b reset + +not_used: + /* we *should* never reach this */ + mov r6, #7 + b reset + +irq: + mov r6, #8 + b reset + +fiq: + mov r6, #9 + b reset diff --git a/include/asm-arm/arch-s3c44b0/hardware.h b/include/asm-arm/arch-s3c44b0/hardware.h new file mode 100644 index 0000000..146e265 --- /dev/null +++ b/include/asm-arm/arch-s3c44b0/hardware.h @@ -0,0 +1,281 @@ +/********************************************************/ +/* */ +/* Samsung S3C44B0 */ +/* tpu */ +/* */ +/********************************************************/ +#ifndef __ASM_ARCH_HARDWARE_H +#define __ASM_ARCH_HARDWARE_H + +#define REGBASE 0x01c00000 +#define REGL(addr) (*(volatile unsigned int *)(REGBASE+addr)) +#define REGW(addr) (*(volatile unsigned short *)(REGBASE+addr)) +#define REGB(addr) (*(volatile unsigned char *)(REGBASE+addr)) + + +/*****************************/ +/* CPU Wrapper Registers */ +/*****************************/ + +#define SYSCFG REGL(0x000000) +#define NCACHBE0 REGL(0x000004) +#define NCACHBE1 REGL(0x000008) +#define SBUSCON REGL(0x040000) + +/************************************/ +/* Memory Controller Registers */ +/************************************/ + +#define BWSCON REGL(0x080000) +#define BANKCON0 REGL(0x080004) +#define BANKCON1 REGL(0x080008) +#define BANKCON2 REGL(0x08000c) +#define BANKCON3 REGL(0x080010) +#define BANKCON4 REGL(0x080014) +#define BANKCON5 REGL(0x080018) +#define BANKCON6 REGL(0x08001c) +#define BANKCON7 REGL(0x080020) +#define REFRESH REGL(0x080024) +#define BANKSIZE REGL(0x080028) +#define MRSRB6 REGL(0x08002c) +#define MRSRB7 REGL(0x080030) + +/*********************/ +/* UART Registers */ +/*********************/ + +#define ULCON0 REGL(0x100000) +#define ULCON1 REGL(0x104000) +#define UCON0 REGL(0x100004) +#define UCON1 REGL(0x104004) +#define UFCON0 REGL(0x100008) +#define UFCON1 REGL(0x104008) +#define UMCON0 REGL(0x10000c) +#define UMCON1 REGL(0x10400c) +#define UTRSTAT0 REGL(0x100010) +#define UTRSTAT1 REGL(0x104010) +#define UERSTAT0 REGL(0x100014) +#define UERSTAT1 REGL(0x104014) +#define UFSTAT0 REGL(0x100018) +#define UFSTAT1 REGL(0x104018) +#define UMSTAT0 REGL(0x10001c) +#define UMSTAT1 REGL(0x10401c) +#define UTXH0 REGB(0x100020) +#define UTXH1 REGB(0x104020) +#define URXH0 REGB(0x100024) +#define URXH1 REGB(0x104024) +#define UBRDIV0 REGL(0x100028) +#define UBRDIV1 REGL(0x104028) + +/*******************/ +/* SIO Registers */ +/*******************/ + +#define SIOCON REGL(0x114000) +#define SIODAT REGL(0x114004) +#define SBRDR REGL(0x114008) +#define ITVCNT REGL(0x11400c) +#define DCNTZ REGL(0x114010) + +/********************/ +/* IIS Registers */ +/********************/ + +#define IISCON REGL(0x118000) +#define IISMOD REGL(0x118004) +#define IISPSR REGL(0x118008) +#define IISFIFCON REGL(0x11800c) +#define IISFIF REGW(0x118010) + +/**************************/ +/* I/O Ports Registers */ +/**************************/ + +#define PCONA REGL(0x120000) +#define PDATA REGL(0x120004) +#define PCONB REGL(0x120008) +#define PDATB REGL(0x12000c) +#define PCONC REGL(0x120010) +#define PDATC REGL(0x120014) +#define PUPC REGL(0x120018) +#define PCOND REGL(0x12001c) +#define PDATD REGL(0x120020) +#define PUPD REGL(0x120024) +#define PCONE REGL(0x120028) +#define PDATE REGL(0x12002c) +#define PUPE REGL(0x120030) +#define PCONF REGL(0x120034) +#define PDATF REGL(0x120038) +#define PUPF REGL(0x12003c) +#define PCONG REGL(0x120040) +#define PDATG REGL(0x120044) +#define PUPG REGL(0x120048) +#define SPUCR REGL(0x12004c) +#define EXTINT REGL(0x120050) +#define EXTINTPND REGL(0x120054) + +/*********************************/ +/* WatchDog Timers Registers */ +/*********************************/ + +#define WTCON REGL(0x130000) +#define WTDAT REGL(0x130004) +#define WTCNT REGL(0x130008) + +/*********************************/ +/* A/D Converter Registers */ +/*********************************/ + +#define ADCCON REGL(0x140000) +#define ADCPSR REGL(0x140004) +#define ADCDAT REGL(0x140008) + +/***************************/ +/* PWM Timer Registers */ +/***************************/ + +#define TCFG0 REGL(0x150000) +#define TCFG1 REGL(0x150004) +#define TCON REGL(0x150008) +#define TCNTB0 REGL(0x15000c) +#define TCMPB0 REGL(0x150010) +#define TCNTO0 REGL(0x150014) +#define TCNTB1 REGL(0x150018) +#define TCMPB1 REGL(0x15001c) +#define TCNTO1 REGL(0x150020) +#define TCNTB2 REGL(0x150024) +#define TCMPB2 REGL(0x150028) +#define TCNTO2 REGL(0x15002c) +#define TCNTB3 REGL(0x150030) +#define TCMPB3 REGL(0x150034) +#define TCNTO3 REGL(0x150038) +#define TCNTB4 REGL(0x15003c) +#define TCMPB4 REGL(0x150040) +#define TCNTO4 REGL(0x150044) +#define TCNTB5 REGL(0x150048) +#define TCNTO5 REGL(0x15004c) + +/*********************/ +/* IIC Registers */ +/*********************/ + +#define IICCON REGL(0x160000) +#define IICSTAT REGL(0x160004) +#define IICADD REGL(0x160008) +#define IICDS REGL(0x16000c) + +/*********************/ +/* RTC Registers */ +/*********************/ + +#define RTCCON REGB(0x170040) +#define RTCALM REGB(0x170050) +#define ALMSEC REGB(0x170054) +#define ALMMIN REGB(0x170058) +#define ALMHOUR REGB(0x17005c) +#define ALMDAY REGB(0x170060) +#define ALMMON REGB(0x170064) +#define ALMYEAR REGB(0x170068) +#define RTCRST REGB(0x17006c) +#define BCDSEC REGB(0x170070) +#define BCDMIN REGB(0x170074) +#define BCDHOUR REGB(0x170078) +#define BCDDAY REGB(0x17007c) +#define BCDDATE REGB(0x170080) +#define BCDMON REGB(0x170084) +#define BCDYEAR REGB(0x170088) +#define TICINT REGB(0x17008c) + +/*********************************/ +/* Clock & Power Registers */ +/*********************************/ + +#define PLLCON REGL(0x180000) +#define CLKCON REGL(0x180004) +#define CLKSLOW REGL(0x180008) +#define LOCKTIME REGL(0x18000c) + +/**************************************/ +/* Interrupt Controller Registers */ +/**************************************/ + +#define INTCON REGL(0x200000) +#define INTPND REGL(0x200004) +#define INTMOD REGL(0x200008) +#define INTMSK REGL(0x20000c) +#define I_PSLV REGL(0x200010) +#define I_PMST REGL(0x200014) +#define I_CSLV REGL(0x200018) +#define I_CMST REGL(0x20001c) +#define I_ISPR REGL(0x200020) +#define I_ISPC REGL(0x200024) +#define F_ISPR REGL(0x200038) +#define F_ISPC REGL(0x20003c) + +/********************************/ +/* LCD Controller Registers */ +/********************************/ + +#define LCDCON1 REGL(0x300000) +#define LCDCON2 REGL(0x300004) +#define LCDSADDR1 REGL(0x300008) +#define LCDSADDR2 REGL(0x30000c) +#define LCDSADDR3 REGL(0x300010) +#define REDLUT REGL(0x300014) +#define GREENLUT REGL(0x300018) +#define BLUELUT REGL(0x30001c) +#define DP1_2 REGL(0x300020) +#define DP4_7 REGL(0x300024) +#define DP3_5 REGL(0x300028) +#define DP2_3 REGL(0x30002c) +#define DP5_7 REGL(0x300030) +#define DP3_4 REGL(0x300034) +#define DP4_5 REGL(0x300038) +#define DP6_7 REGL(0x30003c) +#define LCDCON3 REGL(0x300040) +#define DITHMODE REGL(0x300044) + +/*********************/ +/* DMA Registers */ +/*********************/ + +#define ZDCON0 REGL(0x280000) +#define ZDISRC0 REGL(0x280004) +#define ZDIDES0 REGL(0x280008) +#define ZDICNT0 REGL(0x28000c) +#define ZDCSRC0 REGL(0x280010) +#define ZDCDES0 REGL(0x280014) +#define ZDCCNT0 REGL(0x280018) + +#define ZDCON1 REGL(0x280020) +#define ZDISRC1 REGL(0x280024) +#define ZDIDES1 REGL(0x280028) +#define ZDICNT1 REGL(0x28002c) +#define ZDCSRC1 REGL(0x280030) +#define ZDCDES1 REGL(0x280034) +#define ZDCCNT1 REGL(0x280038) + +#define BDCON0 REGL(0x380000) +#define BDISRC0 REGL(0x380004) +#define BDIDES0 REGL(0x380008) +#define BDICNT0 REGL(0x38000c) +#define BDCSRC0 REGL(0x380010) +#define BDCDES0 REGL(0x380014) +#define BDCCNT0 REGL(0x380018) + +#define BDCON1 REGL(0x380020) +#define BDISRC1 REGL(0x380024) +#define BDIDES1 REGL(0x380028) +#define BDICNT1 REGL(0x38002c) +#define BDCSRC1 REGL(0x380030) +#define BDCDES1 REGL(0x380034) +#define BDCCNT1 REGL(0x380038) + + +#define CLEAR_PEND_INT(n) I_ISPC = (1<<(n)) +#define INT_ENABLE(n) INTMSK &= ~(1<<(n)) +#define INT_DISABLE(n) INTMSK |= (1<<(n)) + +#define HARD_RESET_NOW() + +#endif /* __ASM_ARCH_HARDWARE_H */ diff --git a/include/configs/B2.h b/include/configs/B2.h new file mode 100644 index 0000000..2fc97b2 --- /dev/null +++ b/include/configs/B2.h @@ -0,0 +1,209 @@ +/* + * (C) Copyright 2004 + * DAVE Srl + * + * http://www.dave-tech.it + * http://www.wawnet.biz + * mailto:info@wawnet.biz + * + * Configuation settings for the B2 board. + * + * 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 + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +/* + * If we are developing, we might want to start armboot from ram + * so we MUST NOT initialize critical regs like mem-timing ... + */ +#define CONFIG_INIT_CRITICAL /* undef for developing */ + +/* + * High Level Configuration Options + * (easy to change) + */ +#define CONFIG_ARM7 1 /* This is a ARM7 CPU */ +#define CONFIG_B2 1 /* on an B2 Board */ +#define CONFIG_ARM_THUMB 1 /* this is an ARM7TDMI */ +#undef CONFIG_ARM7_REVD /* disable ARM720 REV.D Workarounds */ + +#define CONFIG_S3C44B0_CLOCK_SPEED 75 /* we have a 75Mhz S3C44B0*/ + + +#undef CONFIG_USE_IRQ /* don't need them anymore */ + + +/* + * Size of malloc() pool + */ +#define CFG_MONITOR_LEN (256 * 1024) /* Reserve 256 kB for Monitor */ +#define CFG_ENV_SIZE 1024 /* 1024 bytes may be used for env vars*/ +#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024 ) +#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */ + +/* + * Hardware drivers + */ +#define CONFIG_DRIVER_LAN91C96 +#define CONFIG_LAN91C96_BASE 0x04000300 /* base address */ +#define CONFIG_SMC_USE_32_BIT +#undef CONFIG_SHOW_ACTIVITY +#define CONFIG_NET_RETRY_COUNT 10 /* # of retries */ + +/* + * select serial console configuration + */ +#define CONFIG_SERIAL1 1 /* we use Serial line 1 */ + +/* allow to overwrite serial and ethaddr */ +#define CONFIG_ENV_OVERWRITE + +#define CONFIG_BAUDRATE 115200 + +#define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT|CONFIG_BOOTP_BOOTFILESIZE) + +#define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \ + CFG_CMD_DATE | \ + CFG_CMD_ELF | \ + CFG_CMD_EEPROM | \ + CFG_CMD_I2C ) + +/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ +#include + +#define CONFIG_BOOTDELAY 5 +#define CONFIG_ETHADDR 00:50:c2:1e:af:fb +#define CONFIG_BOOTARGS "setenv bootargs root=/dev/ram ip=192.168.0.70:::::eth0:off \ + ether=25,0,0,0,eth0 ethaddr=00:50:c2:1e:af:fb" +#define CONFIG_NETMASK 255.255.0.0 +#define CONFIG_IPADDR 192.168.0.70 +#define CONFIG_SERVERIP 192.168.0.23 +#define CONFIG_BOOTFILE "B2-rootfs/usr/B2-zImage.u-boot" +#define CONFIG_BOOTCOMMAND "bootm 20000 f0000" + +/* + * Miscellaneous configurable options + */ +#define CFG_LONGHELP /* undef to save memory */ +#define CFG_PROMPT "=> " /* Monitor Command Prompt */ +#define CFG_CBSIZE 256 /* Console I/O Buffer Size */ +#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ +#define CFG_MAXARGS 16 /* max number of command args */ +#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ + +#define CFG_MEMTEST_START 0x0C400000 /* memtest works on */ +#define CFG_MEMTEST_END 0x0C800000 /* 4 ... 8 MB in DRAM */ + +#undef CFG_CLKS_IN_HZ /* everything, incl board info, in Hz */ + +#define CFG_LOAD_ADDR 0x0c700000 /* default load address */ + +#define CFG_HZ 1000 /* 1 kHz */ + + /* valid baudrates */ +#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } + +/*----------------------------------------------------------------------- + * Stack sizes + * + * The stack sizes are set up in start.S using the settings below + */ +#define CONFIG_STACKSIZE (128*1024) /* regular stack */ +#ifdef CONFIG_USE_IRQ +#define CONFIG_STACKSIZE_IRQ (4*1024) /* IRQ stack */ +#define CONFIG_STACKSIZE_FIQ (4*1024) /* FIQ stack */ +#endif + +/*----------------------------------------------------------------------- + * Physical Memory Map + */ +#define CONFIG_NR_DRAM_BANKS 1 /* we have 1 banks of DRAM */ +#define PHYS_SDRAM_1 0xc0000000 /* SDRAM Bank #1 */ +#define PHYS_SDRAM_1_SIZE 0x01000000 /* 16 MB */ + +#define PHYS_FLASH_1 0x00000000 /* Flash Bank #1 */ +#define PHYS_FLASH_SIZE 0x00400000 /* 4 MB */ + +#define CFG_FLASH_BASE PHYS_FLASH_1 + +/*----------------------------------------------------------------------- + * FLASH and environment organization + */ +/*----------------------------------------------------------------------- + * FLASH organization + */ +#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */ +#define CFG_MAX_FLASH_SECT 256 /* max number of sectors on one chip */ + +#define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */ +#define CFG_FLASH_WRITE_TOUT 1000 /* Timeout for Flash Write (in ms) */ + +#define CFG_FLASH_WORD_SIZE unsigned short /* flash word size (width) */ +#define CFG_FLASH_ADDR0 0x5555 /* 1st address for flash config cycles */ +#define CFG_FLASH_ADDR1 0x2AAA /* 2nd address for flash config cycles */ +/* + * The following defines are added for buggy IOP480 byte interface. + * All other boards should use the standard values (CPCI405 etc.) + */ +#define CFG_FLASH_READ0 0x0000 /* 0 is standard */ +#define CFG_FLASH_READ1 0x0001 /* 1 is standard */ +#define CFG_FLASH_READ2 0x0002 /* 2 is standard */ + +#define CFG_FLASH_EMPTY_INFO /* print 'E' for empty sector on flinfo */ + +/*----------------------------------------------------------------------- + * Environment Variable setup + */ +#define CFG_ENV_IS_IN_EEPROM 1 /* use EEPROM for environment vars */ +#define CFG_ENV_OFFSET 0x0 /* environment starts at the beginning of the EEPROM */ + +/*----------------------------------------------------------------------- + * I2C EEPROM (STM24C02W6) for environment + */ +#define CONFIG_HARD_I2C /* I2c with hardware support */ +#define CFG_I2C_SPEED 400000 /* I2C speed and slave address */ +#define CFG_I2C_SLAVE 0xFE + +#define CFG_I2C_EEPROM_ADDR 0xA8 /* EEPROM STM24C02W6 */ +#define CFG_I2C_EEPROM_ADDR_LEN 1 /* Bytes of address */ +/* mask of address bits that overflow into the "EEPROM chip address" */ +/*#define CFG_I2C_EEPROM_ADDR_OVERFLOW 0x07*/ +#define CFG_EEPROM_PAGE_WRITE_BITS 4 /* The Catalyst CAT24WC08 has */ + /* 16 byte page write mode using*/ + /* last 4 bits of the address */ +#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10 /* and takes up to 10 msec */ +#define CFG_EEPROM_PAGE_WRITE_ENABLE + +/* Flash banks JFFS2 should use */ +/* +#define CFG_JFFS2_FIRST_BANK 0 +#define CFG_JFFS2_FIRST_SECTOR 2 +#define CFG_JFFS2_NUM_BANKS 1 +*/ + +/* + Linux TAGs (see lib_arm/armlinux.c) +*/ +#define CONFIG_CMDLINE_TAG +#undef CONFIG_SETUP_MEMORY_TAGS +#define CONFIG_INITRD_TAG + +#endif /* __CONFIG_H */ diff --git a/include/configs/at91rm9200dk.h b/include/configs/at91rm9200dk.h index d971826..90cf8a2 100644 --- a/include/configs/at91rm9200dk.h +++ b/include/configs/at91rm9200dk.h @@ -112,6 +112,7 @@ #define CONFIG_DRIVER_ETHER #define CONFIG_NET_RETRY_COUNT 20 +#define CONFIG_AT91C_USE_RMII #define CONFIG_HAS_DATAFLASH 1 #define CFG_SPI_WRITE_TOUT (5*CFG_HZ) diff --git a/lib_arm/armlinux.c b/lib_arm/armlinux.c index e96ea81..8ba9f0c 100644 --- a/lib_arm/armlinux.c +++ b/lib_arm/armlinux.c @@ -166,6 +166,14 @@ void do_bootm_linux (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], do_reset (cmdtp, flag, argc, argv); } +#ifdef CONFIG_B2 + /* + *we need to copy the ramdisk to SRAM to let Linux boot + */ + memmove ((void *) ntohl(hdr->ih_load), (uchar *)data, len); + data = ntohl(hdr->ih_load); +#endif /* CONFIG_B2 */ + /* * Now check if we have a multifile image */ @@ -322,7 +330,7 @@ static void setup_initrd_tag (bd_t *bd, ulong initrd_start, ulong initrd_end) /* an ATAG_INITRD node tells the kernel where the compressed * ramdisk can be found. ATAG_RDIMG is a better name, actually. */ - params->hdr.tag = ATAG_INITRD2; + params->hdr.tag = ATAG_INITRD; params->hdr.size = tag_size (tag_initrd); params->u.initrd.start = initrd_start;