diff options
| -rw-r--r-- | CHANGELOG | 3 | ||||
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | board/tqm8xx/tqm8xx.c | 5 | ||||
| -rw-r--r-- | common/cmd_pcmcia.c | 173 | ||||
| -rw-r--r-- | include/commproc.h | 3 | ||||
| -rw-r--r-- | include/configs/virtlab2.h | 461 |
6 files changed, 643 insertions, 5 deletions
@@ -2,6 +2,9 @@ Changes since U-Boot 1.1.4: ====================================================================== +* Add support for VirtLab2 board + (needed because of differences in the PCMCIA hardware). + * Minor cleanup. * Update yosemite configuration to enable flash write buffer support @@ -756,7 +756,8 @@ TQM850M_config \ TQM855M_config \ TQM860M_config \ TQM862M_config \ -TQM866M_config: unconfig +TQM866M_config \ +virtlab2_config: unconfig @ >include/config.h @[ -z "$(findstring _LCD,$@)" ] || \ { echo "#define CONFIG_LCD" >>include/config.h ; \ diff --git a/board/tqm8xx/tqm8xx.c b/board/tqm8xx/tqm8xx.c index 520bea8..b292231 100644 --- a/board/tqm8xx/tqm8xx.c +++ b/board/tqm8xx/tqm8xx.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2000-2004 + * (C) Copyright 2000-2006 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this @@ -124,6 +124,9 @@ int checkboard (void) break; putc (*s); } +#ifdef CONFIG_VIRTLAB2 + puts (" (Virtlab2)"); +#endif putc ('\n'); return (0); diff --git a/common/cmd_pcmcia.c b/common/cmd_pcmcia.c index 62446d4..16d9d14 100644 --- a/common/cmd_pcmcia.c +++ b/common/cmd_pcmcia.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2000-2004 + * (C) Copyright 2000-2006 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this @@ -718,7 +718,8 @@ static int hardware_disable(int slot) /* SC8xx Boards by SinoVee Microsystems */ /* -------------------------------------------------------------------- */ -#if defined(CONFIG_TQM8xxL) || defined(CONFIG_SVM_SC8xx) +#if (defined(CONFIG_TQM8xxL) || defined(CONFIG_SVM_SC8xx)) \ + && !defined(CONFIG_VIRTLAB2) #if defined(CONFIG_TQM8xxL) #define PCMCIA_BOARD_MSG "TQM8xxL" @@ -1021,6 +1022,174 @@ done: #endif /* TQM8xxL */ +/* -------------------------------------------------------------------- */ +/* Virtlab2 Board by TQ Components */ +/* -------------------------------------------------------------------- */ + +#if defined(CONFIG_VIRTLAB2) +#define PCMCIA_BOARD_MSG "Virtlab2" + +static int hardware_enable(int slot) +{ + volatile pcmconf8xx_t *pcmp = + (pcmconf8xx_t *)&(((immap_t *)CFG_IMMR)->im_pcmcia); + volatile unsigned char *powerctl = + (volatile unsigned char *)PCMCIA_CTRL; + unsigned int reg, mask; + + debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); + + udelay(10000); + + /* clear interrupt state, and disable interrupts */ + pcmp->pcmc_pscr = PCMCIA_MASK(slot); + pcmp->pcmc_per &= ~PCMCIA_MASK(slot); + + /* + * Disable interrupts, DMA, and PCMCIA buffers + * (isolate the interface) and assert RESET signal + */ + debug ("Disable PCMCIA buffers and assert RESET\n"); + reg = __MY_PCMCIA_GCRX_CXRESET; /* active high */ + reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */ + + PCMCIA_PGCRX(slot) = reg; + udelay(500); + + /* remove all power */ + *powerctl = 0; + + /* + * Make sure there is a card in the slot, then configure the interface. + */ + udelay(10000); + debug ("[%d] %s: PIPR(%p)=0x%x\n", __LINE__,__FUNCTION__, + &(pcmp->pcmc_pipr),pcmp->pcmc_pipr); + + if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) { + printf (" No Card found\n"); + return (1); + } + + /* + * Power On. + */ + mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot); + reg = pcmp->pcmc_pipr; + debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n", reg, + (reg&PCMCIA_VS1(slot))?"n":"ff", + (reg&PCMCIA_VS2(slot))?"n":"ff"); + + if ((reg & mask) == mask) { + *powerctl = 2; /* Enable 5V Vccout */ + puts (" 5.0V card found: "); + } else { + *powerctl = 1; /* Enable 3.3 V Vccout */ + puts (" 3.3V card found: "); + } + + udelay(1000); + debug ("Enable PCMCIA buffers and stop RESET\n"); + reg = PCMCIA_PGCRX(slot); + reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */ + reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */ + + PCMCIA_PGCRX(slot) = reg; + + udelay(250000); /* some cards need >150 ms to come up :-( */ + + debug ("# hardware_enable done\n"); + + return (0); +} + +#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) +static int hardware_disable(int slot) +{ + volatile unsigned char *powerctl = + (volatile unsigned char *)PCMCIA_CTRL; + unsigned long reg; + + debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); + + /* remove all power */ + *powerctl = 0; + + debug ("Disable PCMCIA buffers and assert RESET\n"); + reg = __MY_PCMCIA_GCRX_CXRESET; /* active high */ + reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */ + + PCMCIA_PGCRX(slot) = reg; + + udelay(10000); + + return (0); +} +#endif + +static int voltage_set(int slot, int vcc, int vpp) +{ + volatile pcmconf8xx_t *pcmp = + (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); + volatile unsigned char *powerctl = + (volatile unsigned char *)PCMCIA_CTRL; + unsigned long reg; + + debug ("voltage_set: " PCMCIA_BOARD_MSG + " Slot %c, Vcc=%d.%d, Vpp=%d.%d\n", + 'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10); + + /* + * Disable PCMCIA buffers (isolate the interface) + * and assert RESET signal + */ + debug ("Disable PCMCIA buffers and assert RESET\n"); + reg = PCMCIA_PGCRX(slot); + reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ + reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */ + + PCMCIA_PGCRX(slot) = reg; + udelay(500); + + /* + * Configure pins for 5 Volts Enable and 3 Volts enable, + * Turn off all power. + */ + debug ("PCMCIA power OFF\n"); + reg = 0; + switch(vcc) { + case 0: break; + case 33: reg = 0x0001; break; + case 50: reg = 0x0002; break; + default: goto done; + } + + /* Checking supported voltages */ + + debug ("PIPR: 0x%x --> %s\n", pcmp->pcmc_pipr, + (pcmp->pcmc_pipr & 0x00008000) ? "only 5 V" : "can do 3.3V"); + + *powerctl = reg; + + if (reg) { + debug ("PCMCIA powered at %sV\n", (reg&0x0004) ? "5.0" : "3.3"); + } else { + debug ("PCMCIA powered down\n"); + } + +done: + debug ("Enable PCMCIA buffers and stop RESET\n"); + reg = PCMCIA_PGCRX(slot); + reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */ + reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */ + + PCMCIA_PGCRX(slot) = reg; + udelay(500); + + debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n", slot+'A'); + return (0); +} +#endif /* CONFIG_VIRTLAB2 */ /* -------------------------------------------------------------------- */ /* LWMON Board */ diff --git a/include/commproc.h b/include/commproc.h index 7900166..061468e 100644 --- a/include/commproc.h +++ b/include/commproc.h @@ -2,7 +2,7 @@ * MPC8xx Communication Processor Module. * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) * - * (C) Copyright 2000-2004 + * (C) Copyright 2000-2006 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * This file contains structures and information for the communication @@ -1412,6 +1412,7 @@ typedef struct scc_enet { defined(CONFIG_TQM823L) || defined(CONFIG_TQM823M) || \ defined(CONFIG_TQM850L) || defined(CONFIG_TQM850M) || \ defined(CONFIG_ETX094) || defined(CONFIG_RRVISION)|| \ + defined(CONFIG_VIRTLAB2)|| \ (defined(CONFIG_LANTEC) && CONFIG_LANTEC < 2) /* Bits in parallel I/O port registers that have to be set/cleared * to configure the pins for SCC2 use. diff --git a/include/configs/virtlab2.h b/include/configs/virtlab2.h new file mode 100644 index 0000000..06d8536 --- /dev/null +++ b/include/configs/virtlab2.h @@ -0,0 +1,461 @@ +/* + * (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 + */ + +/* + * board/config.h - configuration options, board specific + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +/* + * High Level Configuration Options + * (easy to change) + */ + +#define CONFIG_MPC823 1 /* This is a MPC823 CPU */ +#define CONFIG_VIRTLAB2 1 /* ...on a virtlab2 module */ +#define CONFIG_TQM8xxL 1 + +#ifdef CONFIG_LCD /* with LCD controller ? */ +#define CONFIG_SPLASH_SCREEN /* ... with splashscreen support*/ +#endif + +#define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */ +#undef CONFIG_8xx_CONS_SMC2 +#undef CONFIG_8xx_CONS_NONE +#define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */ + +#define CONFIG_BOOTCOUNT_LIMIT + +#define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */ + +#define CONFIG_BOARD_TYPES 1 /* support board types */ + +#define CONFIG_PREBOOT "echo;echo Type \"run flash_nfs\" to mount root filesystem over NFS;echo" + +#undef CONFIG_BOOTARGS + +#define CONFIG_EXTRA_ENV_SETTINGS \ + "netdev=eth0\0" \ + "nfsargs=setenv bootargs root=/dev/nfs rw " \ + "nfsroot=${serverip}:${rootpath}\0" \ + "ramargs=setenv bootargs root=/dev/ram rw\0" \ + "addip=setenv bootargs ${bootargs} " \ + "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \ + ":${hostname}:${netdev}:off panic=1\0" \ + "flash_nfs=run nfsargs addip;" \ + "bootm ${kernel_addr}\0" \ + "flash_self=run ramargs addip;" \ + "bootm ${kernel_addr} ${ramdisk_addr}\0" \ + "net_nfs=tftp 200000 ${bootfile};run nfsargs addip;bootm\0" \ + "rootpath=/opt/eldk/ppc_8xx\0" \ + "bootfile=/tftpboot/TQM823L/uImage\0" \ + "kernel_addr=40040000\0" \ + "ramdisk_addr=40100000\0" \ + "" +#define CONFIG_BOOTCOMMAND "run flash_self" + +#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */ +#undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */ + +#undef CONFIG_WATCHDOG /* watchdog disabled */ + +#if defined(CONFIG_LCD) +# undef CONFIG_STATUS_LED /* disturbs display */ +#else +# define CONFIG_STATUS_LED 1 /* Status LED enabled */ +#endif /* CONFIG_LCD */ + +#undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */ + +#define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE) + +#define CONFIG_MAC_PARTITION +#define CONFIG_DOS_PARTITION + +#define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */ + +#ifdef CONFIG_SPLASH_SCREEN +# define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \ + CFG_CMD_ASKENV | \ + CFG_CMD_BMP | \ + CFG_CMD_DATE | \ + CFG_CMD_DHCP | \ + CFG_CMD_IDE | \ + CFG_CMD_NFS | \ + CFG_CMD_SNTP ) +#else +# define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \ + CFG_CMD_ASKENV | \ + CFG_CMD_DATE | \ + CFG_CMD_DHCP | \ + CFG_CMD_IDE | \ + CFG_CMD_NFS | \ + CFG_CMD_SNTP ) +#endif + +/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ +#include <cmd_confdefs.h> + +/* + * Miscellaneous configurable options + */ +#define CFG_LONGHELP /* undef to save memory */ +#define CFG_PROMPT "=> " /* Monitor Command Prompt */ + +#if 0 +#define CFG_HUSH_PARSER 1 /* use "hush" command parser */ +#endif +#ifdef CFG_HUSH_PARSER +#define CFG_PROMPT_HUSH_PS2 "> " +#endif + +#if (CONFIG_COMMANDS & CFG_CMD_KGDB) +#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */ +#else +#define CFG_CBSIZE 256 /* Console I/O Buffer Size */ +#endif +#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 0x0400000 /* memtest works on */ +#define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */ + +#define CFG_LOAD_ADDR 0x100000 /* default load address */ + +#define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */ + +#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } + +/* + * Low Level Configuration Settings + * (address mappings, register initial values, etc.) + * You should know what you are doing if you make changes here. + */ +/*----------------------------------------------------------------------- + * Internal Memory Mapped Register + */ +#define CFG_IMMR 0xFFF00000 + +/*----------------------------------------------------------------------- + * Definitions for initial stack pointer and data area (in DPRAM) + */ +#define CFG_INIT_RAM_ADDR CFG_IMMR +#define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */ +#define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */ +#define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) +#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET + +/*----------------------------------------------------------------------- + * Start addresses for the final memory configuration + * (Set up by the startup code) + * Please note that CFG_SDRAM_BASE _must_ start at 0 + */ +#define CFG_SDRAM_BASE 0x00000000 +#define CFG_FLASH_BASE 0x40000000 +#define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */ +#define CFG_MONITOR_BASE CFG_FLASH_BASE +#define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ + +/* + * For booting Linux, the board info and command line data + * have to be in the first 8 MB of memory, since this is + * the maximum mapped by the Linux kernel during initialization. + */ +#define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ + +/*----------------------------------------------------------------------- + * FLASH organization + */ +#define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */ +#define CFG_MAX_FLASH_SECT 71 /* max number of sectors on one chip */ + +#define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */ +#define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */ + +#define CFG_ENV_IS_IN_FLASH 1 +#define CFG_ENV_OFFSET 0x8000 /* Offset of Environment Sector */ +#define CFG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */ + +/* Address and size of Redundant Environment Sector */ +#define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET+CFG_ENV_SIZE) +#define CFG_ENV_SIZE_REDUND (CFG_ENV_SIZE) + +/*----------------------------------------------------------------------- + * Hardware Information Block + */ +#define CFG_HWINFO_OFFSET 0x0003FFC0 /* offset of HW Info block */ +#define CFG_HWINFO_SIZE 0x00000040 /* size of HW Info block */ +#define CFG_HWINFO_MAGIC 0x54514D38 /* 'TQM8' */ + +/*----------------------------------------------------------------------- + * Cache Configuration + */ +#define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ +#if (CONFIG_COMMANDS & CFG_CMD_KGDB) +#define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */ +#endif + +/*----------------------------------------------------------------------- + * SYPCR - System Protection Control 11-9 + * SYPCR can only be written once after reset! + *----------------------------------------------------------------------- + * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze + */ +#if defined(CONFIG_WATCHDOG) +#define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \ + SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP) +#else +#define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP) +#endif + +/*----------------------------------------------------------------------- + * SIUMCR - SIU Module Configuration 11-6 + *----------------------------------------------------------------------- + * PCMCIA config., multi-function pin tri-state + */ +#ifndef CONFIG_CAN_DRIVER +#define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01) +#else /* we must activate GPL5 in the SIUMCR for CAN */ +#define CFG_SIUMCR (SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01) +#endif /* CONFIG_CAN_DRIVER */ + +/*----------------------------------------------------------------------- + * TBSCR - Time Base Status and Control 11-26 + *----------------------------------------------------------------------- + * Clear Reference Interrupt Status, Timebase freezing enabled + */ +#define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF) + +/*----------------------------------------------------------------------- + * RTCSC - Real-Time Clock Status and Control Register 11-27 + *----------------------------------------------------------------------- + */ +#define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE) + +/*----------------------------------------------------------------------- + * PISCR - Periodic Interrupt Status and Control 11-31 + *----------------------------------------------------------------------- + * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled + */ +#define CFG_PISCR (PISCR_PS | PISCR_PITF) + +/*----------------------------------------------------------------------- + * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30 + *----------------------------------------------------------------------- + * Reset PLL lock status sticky bit, timer expired status bit and timer + * interrupt status bit + */ +#define CFG_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST) + +/*----------------------------------------------------------------------- + * SCCR - System Clock and reset Control Register 15-27 + *----------------------------------------------------------------------- + * Set clock output, timebase and RTC source and divider, + * power management and some other internal clocks + */ +#define SCCR_MASK SCCR_EBDF11 +#define CFG_SCCR (SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ + SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ + SCCR_DFALCD00) + +/*----------------------------------------------------------------------- + * PCMCIA stuff + *----------------------------------------------------------------------- + * + */ +#define CFG_PCMCIA_MEM_ADDR (0xE0000000) +#define CFG_PCMCIA_MEM_SIZE ( 64 << 20 ) +#define CFG_PCMCIA_DMA_ADDR (0xE4000000) +#define CFG_PCMCIA_DMA_SIZE ( 64 << 20 ) +#define CFG_PCMCIA_ATTRB_ADDR (0xE8000000) +#define CFG_PCMCIA_ATTRB_SIZE ( 64 << 20 ) +#define CFG_PCMCIA_IO_ADDR (0xEC000000) +#define CFG_PCMCIA_IO_SIZE ( 64 << 20 ) + +/*----------------------------------------------------------------------- + * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter) + *----------------------------------------------------------------------- + */ + +#define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */ + +#undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */ +#undef CONFIG_IDE_LED /* LED for ide not supported */ +#undef CONFIG_IDE_RESET /* reset for ide not supported */ + +#define CFG_IDE_MAXBUS 1 /* max. 1 IDE bus */ +#define CFG_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */ + +#define CFG_ATA_IDE0_OFFSET 0x0000 + +#define CFG_ATA_BASE_ADDR CFG_PCMCIA_MEM_ADDR + +/* Offset for data I/O */ +#define CFG_ATA_DATA_OFFSET (CFG_PCMCIA_MEM_SIZE + 0x320) + +/* Offset for normal register accesses */ +#define CFG_ATA_REG_OFFSET (2 * CFG_PCMCIA_MEM_SIZE + 0x320) + +/* Offset for alternate registers */ +#define CFG_ATA_ALT_OFFSET 0x0100 + +/*----------------------------------------------------------------------- + * + *----------------------------------------------------------------------- + * + */ +#define CFG_DER 0 + +/* + * Init Memory Controller: + * + * BR0/1 and OR0/1 (FLASH) + */ + +#define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */ +#define FLASH_BASE1_PRELIM 0x60000000 /* FLASH bank #0 */ + +/* used to re-map FLASH both when starting from SRAM or FLASH: + * restrict access enough to keep SRAM working (if any) + * but not too much to meddle with FLASH accesses + */ +#define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */ +#define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */ + +/* + * FLASH timing: + */ +#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \ + OR_SCY_3_CLK | OR_EHTR | OR_BI) + +#define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH) +#define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH) +#define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V ) + +#define CFG_OR1_REMAP CFG_OR0_REMAP +#define CFG_OR1_PRELIM CFG_OR0_PRELIM +#define CFG_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_V ) + +/* + * BR2/3 and OR2/3 (SDRAM) + * + */ +#define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */ +#define SDRAM_BASE3_PRELIM 0x20000000 /* SDRAM bank #1 */ +#define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */ + +/* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */ +#define CFG_OR_TIMING_SDRAM 0x00000A00 + +#define CFG_OR2_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM ) +#define CFG_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) + +#ifndef CONFIG_CAN_DRIVER +#define CFG_OR3_PRELIM CFG_OR2_PRELIM +#define CFG_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) +#else /* CAN uses CS3#, so we can have only one SDRAM bank anyway */ +#define CFG_CAN_BASE 0xC0000000 /* CAN mapped at 0xC0000000 */ +#define CFG_CAN_OR_AM 0xFFFF8000 /* 32 kB address mask */ +#define CFG_OR3_CAN (CFG_CAN_OR_AM | OR_G5LA | OR_BI) +#define CFG_BR3_CAN ((CFG_CAN_BASE & BR_BA_MSK) | \ + BR_PS_8 | BR_MS_UPMB | BR_V ) +#endif /* CONFIG_CAN_DRIVER */ + +/* + * Memory Periodic Timer Prescaler + * + * The Divider for PTA (refresh timer) configuration is based on an + * example SDRAM configuration (64 MBit, one bank). The adjustment to + * the number of chip selects (NCS) and the actually needed refresh + * rate is done by setting MPTPR. + * + * PTA is calculated from + * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS) + * + * gclk CPU clock (not bus clock!) + * Trefresh Refresh cycle * 4 (four word bursts used) + * + * 4096 Rows from SDRAM example configuration + * 1000 factor s -> ms + * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration + * 4 Number of refresh cycles per period + * 64 Refresh cycle in ms per number of rows + * -------------------------------------------- + * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000 + * + * 50 MHz => 50.000.000 / Divider = 98 + * 66 Mhz => 66.000.000 / Divider = 129 + * 80 Mhz => 80.000.000 / Divider = 156 + */ + +#define CFG_PTA_PER_CLK ((4096 * 32 * 1000) / (4 * 64)) +#define CFG_MAMR_PTA 98 + +/* + * For 16 MBit, refresh rates could be 31.3 us + * (= 64 ms / 2K = 125 / quad bursts). + * For a simpler initialization, 15.6 us is used instead. + * + * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks + * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank + */ +#define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */ +#define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */ + +/* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */ +#define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */ +#define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */ + +/* + * MAMR settings for SDRAM + */ + +/* 8 column SDRAM */ +#define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ + MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \ + MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) +/* 9 column SDRAM */ +#define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ + MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \ + MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) + + +/* + * Internal Definitions + * + * Boot Flags + */ +#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */ +#define BOOTFLAG_WARM 0x02 /* Software reboot */ + +/* Map peripheral control registers on CS4 */ +#define CFG_PERIPHERAL_BASE 0xA0000000 +#define CFG_PERIPHERAL_OR_AM 0xFFFF8000 /* 32 kB address mask */ +#define CFG_OR4_PRELIM (CFG_PERIPHERAL_OR_AM | OR_TRLX | OR_CSNT_SAM | \ + OR_SCY_2_CLK) +#define CFG_BR4_PRELIM ((CFG_PERIPHERAL_BASE & BR_BA_MSK) | BR_PS_8 | BR_V) +#define PCMCIA_CTRL (CFG_PERIPHERAL_BASE + 0xB00) +#endif /* __CONFIG_H */ |