mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
c837dcb1a3
before we can access it; add delay in case we are faster (with no CF card inserted) * Cleanup of some init functions * Make sure SCC Ethernet is always stopped by the time we boot Linux to avoid Linux crashes by early packets coming in. * Accelerate flash accesses on LWMON board by using buffered writes
710 lines
24 KiB
C
710 lines
24 KiB
C
/*
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* (C) Copyright 2000
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* Murray Jensen <Murray.Jensen@cmst.csiro.au>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Config header file for Hymod board
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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/*
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* High Level Configuration Options
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* (easy to change)
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*/
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#define CONFIG_MPC8260 1 /* This is an MPC8260 CPU */
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#define CONFIG_HYMOD 1 /* ...on a Hymod board */
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#define CONFIG_MISC_INIT_F 1 /* Use misc_init_f() */
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#define CONFIG_BOARD_POSTCLK_INIT /* have board_postclk_init() function */
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/*
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* select serial console configuration
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*
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* if either CONFIG_CONS_ON_SMC or CONFIG_CONS_ON_SCC is selected, then
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* CONFIG_CONS_INDEX must be set to the channel number (1-2 for SMC, 1-4
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* for SCC).
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*
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* if CONFIG_CONS_NONE is defined, then the serial console routines must
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* defined elsewhere (for example, on the cogent platform, there are serial
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* ports on the motherboard which are used for the serial console - see
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* cogent/cma101/serial.[ch]).
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*/
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#undef CONFIG_CONS_ON_SMC /* define if console on SMC */
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#define CONFIG_CONS_ON_SCC /* define if console on SCC */
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#undef CONFIG_CONS_NONE /* define if console on something else*/
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#define CONFIG_CONS_INDEX 1 /* which serial channel for console */
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#define CONFIG_CONS_USE_EXTC /* SMC/SCC use ext clock not brg_clk */
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#define CONFIG_CONS_EXTC_RATE 3686400 /* SMC/SCC ext clk rate in Hz */
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#define CONFIG_CONS_EXTC_PINSEL 0 /* pin select 0=CLK3/CLK9,1=CLK5/CLK15*/
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/*
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* select ethernet configuration
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*
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* if either CONFIG_ETHER_ON_SCC or CONFIG_ETHER_ON_FCC is selected, then
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* CONFIG_ETHER_INDEX must be set to the channel number (1-4 for SCC, 1-3
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* for FCC)
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*
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* if CONFIG_ETHER_NONE is defined, then either the ethernet routines must be
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* defined elsewhere (as for the console), or CFG_CMD_NET must be removed
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* from CONFIG_COMMANDS to remove support for networking.
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*/
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#undef CONFIG_ETHER_ON_SCC /* define if ether on SCC */
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#define CONFIG_ETHER_ON_FCC /* define if ether on FCC */
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#undef CONFIG_ETHER_NONE /* define if ether on something else */
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#define CONFIG_ETHER_INDEX 1 /* which channel for ether */
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#define CONFIG_ETHER_LOOPBACK_TEST /* add ether external loopback test */
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#ifdef CONFIG_ETHER_ON_FCC
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#if (CONFIG_ETHER_INDEX == 1)
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/*
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* - Rx-CLK is CLK10
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* - Tx-CLK is CLK11
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* - RAM for BD/Buffers is on the 60x Bus (see 28-13)
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* - Enable Full Duplex in FSMR
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*/
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# define CFG_CMXFCR_MASK (CMXFCR_FC1|CMXFCR_RF1CS_MSK|CMXFCR_TF1CS_MSK)
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# define CFG_CMXFCR_VALUE (CMXFCR_RF1CS_CLK10|CMXFCR_TF1CS_CLK11)
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# define CFG_CPMFCR_RAMTYPE 0
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# define CFG_FCC_PSMR (FCC_PSMR_FDE|FCC_PSMR_LPB)
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# define MDIO_PORT 0 /* Port A */
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# define MDIO_DATA_PINMASK 0x00040000 /* Pin 13 */
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# define MDIO_CLCK_PINMASK 0x00080000 /* Pin 12 */
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#elif (CONFIG_ETHER_INDEX == 2)
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/*
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* - Rx-CLK is CLK13
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* - Tx-CLK is CLK14
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* - RAM for BD/Buffers is on the 60x Bus (see 28-13)
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* - Enable Full Duplex in FSMR
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*/
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# define CFG_CMXFCR_MASK (CMXFCR_FC2|CMXFCR_RF2CS_MSK|CMXFCR_TF2CS_MSK)
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# define CFG_CMXFCR_VALUE (CMXFCR_RF2CS_CLK13|CMXFCR_TF2CS_CLK14)
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# define CFG_CPMFCR_RAMTYPE 0
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# define CFG_FCC_PSMR (FCC_PSMR_FDE|FCC_PSMR_LPB)
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# define MDIO_PORT 0 /* Port A */
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# define MDIO_DATA_PINMASK 0x00000040 /* Pin 25 */
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# define MDIO_CLCK_PINMASK 0x00000080 /* Pin 24 */
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#elif (CONFIG_ETHER_INDEX == 3)
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/*
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* - Rx-CLK is CLK15
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* - Tx-CLK is CLK16
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* - RAM for BD/Buffers is on the 60x Bus (see 28-13)
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* - Enable Full Duplex in FSMR
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*/
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# define CFG_CMXFCR_MASK (CMXFCR_FC3|CMXFCR_RF3CS_MSK|CMXFCR_TF3CS_MSK)
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# define CFG_CMXFCR_VALUE (CMXFCR_RF3CS_CLK15|CMXFCR_TF3CS_CLK16)
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# define CFG_CPMFCR_RAMTYPE 0
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# define CFG_FCC_PSMR (FCC_PSMR_FDE|FCC_PSMR_LPB)
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# define MDIO_PORT 0 /* Port A */
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# define MDIO_DATA_PINMASK 0x00000100 /* Pin 23 */
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# define MDIO_CLCK_PINMASK 0x00000200 /* Pin 22 */
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#endif /* CONFIG_ETHER_INDEX */
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#define CONFIG_MII /* MII PHY management */
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#define CONFIG_BITBANGMII /* bit-bang MII PHY management */
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#define MDIO_ACTIVE (iop->pdir |= MDIO_DATA_PINMASK)
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#define MDIO_TRISTATE (iop->pdir &= ~MDIO_DATA_PINMASK)
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#define MDIO_READ ((iop->pdat & MDIO_DATA_PINMASK) != 0)
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#define MDIO(bit) if(bit) iop->pdat |= MDIO_DATA_PINMASK; \
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else iop->pdat &= ~MDIO_DATA_PINMASK
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#define MDC(bit) if(bit) iop->pdat |= MDIO_CLCK_PINMASK; \
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else iop->pdat &= ~MDIO_CLCK_PINMASK
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#define MIIDELAY udelay(1)
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#endif /* CONFIG_ETHER_ON_FCC */
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/* other options */
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#define CONFIG_HARD_I2C 1 /* To enable I2C hardware support */
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#define CONFIG_DTT_ADM1021 1 /* ADM1021 temp sensor support */
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/* system clock rate (CLKIN) - equal to the 60x and local bus speed */
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#ifdef DEBUG
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#define CONFIG_8260_CLKIN 33333333 /* in Hz */
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#else
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#define CONFIG_8260_CLKIN 66666666 /* in Hz */
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#endif
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#if defined(CONFIG_CONS_USE_EXTC)
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#define CONFIG_BAUDRATE 115200
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#else
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#define CONFIG_BAUDRATE 9600
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#endif
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/* default ip addresses - these will be overridden */
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#define CONFIG_IPADDR 192.168.1.1 /* hymod "boot" address */
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#define CONFIG_SERVERIP 192.168.1.254 /* hymod "server" address */
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#define CONFIG_LAST_STAGE_INIT
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#define CONFIG_COMMANDS (CFG_CMD_ALL & ~( \
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CFG_CMD_BEDBUG | \
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CFG_CMD_BMP | \
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CFG_CMD_DOC | \
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CFG_CMD_FDC | \
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CFG_CMD_FDOS | \
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CFG_CMD_FPGA | \
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CFG_CMD_HWFLOW | \
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CFG_CMD_IDE | \
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CFG_CMD_JFFS2 | \
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CFG_CMD_NAND | \
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CFG_CMD_MMC | \
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CFG_CMD_PCMCIA | \
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CFG_CMD_PCI | \
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CFG_CMD_USB | \
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CFG_CMD_SCSI | \
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CFG_CMD_SPI | \
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CFG_CMD_VFD ) )
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/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
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#include <cmd_confdefs.h>
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#ifdef DEBUG
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#define CONFIG_BOOTDELAY -1 /* autoboot disabled */
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#else
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#define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
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#define CONFIG_BOOT_RETRY_TIME 30 /* retry autoboot after 30 secs */
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#define CONFIG_BOOT_RETRY_MIN 1 /* can go down to 1 second timeout */
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/* Be selective on what keys can delay or stop the autoboot process
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* To stop use: " "
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*/
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#define CONFIG_AUTOBOOT_KEYED
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#define CONFIG_AUTOBOOT_PROMPT "Autobooting in %d seconds, " \
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"press <SPACE> to stop\n"
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#define CONFIG_AUTOBOOT_STOP_STR " "
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#undef CONFIG_AUTOBOOT_DELAY_STR
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#define DEBUG_BOOTKEYS 0
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#endif
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#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
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#undef CONFIG_KGDB_ON_SMC /* define if kgdb on SMC */
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#define CONFIG_KGDB_ON_SCC /* define if kgdb on SCC */
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#undef CONFIG_KGDB_NONE /* define if kgdb on something else */
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#define CONFIG_KGDB_INDEX 2 /* which serial channel for kgdb */
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#define CONFIG_KGDB_USE_EXTC /* SMC/SCC use ext clock not brg_clk */
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#define CONFIG_KGDB_EXTC_RATE 3686400 /* serial ext clk rate in Hz */
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#define CONFIG_KGDB_EXTC_PINSEL 0 /* pin select 0=CLK3/CLK9,1=CLK5/CLK15*/
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# if defined(CONFIG_KGDB_USE_EXTC)
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#define CONFIG_KGDB_BAUDRATE 115200 /* speed to run kgdb serial port at */
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# else
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#define CONFIG_KGDB_BAUDRATE 9600 /* speed to run kgdb serial port at */
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# endif
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#endif
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#undef CONFIG_WATCHDOG /* disable platform specific watchdog */
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#define CONFIG_RTC_PCF8563 /* use Philips PCF8563 RTC */
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/*
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* Hymod specific configurable options
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*/
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#undef CFG_HYMOD_DBLEDS /* walk mezz board LEDs */
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/*
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* Miscellaneous configurable options
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*/
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#define CFG_LONGHELP /* undef to save memory */
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#define CFG_PROMPT "=> " /* Monitor Command Prompt */
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#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
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#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
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#else
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#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
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#endif
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#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
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#define CFG_MAXARGS 16 /* max number of command args */
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#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
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#define CFG_MEMTEST_START 0x00400000 /* memtest works on */
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#define CFG_MEMTEST_END 0x03c00000 /* 4 ... 60 MB in DRAM */
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#define CFG_CLKS_IN_HZ 1 /* everything, incl board info, in Hz */
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#define CFG_LOAD_ADDR 0x100000 /* default load address */
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#define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
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#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, 230400 }
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#define CFG_I2C_SPEED 50000
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#define CFG_I2C_SLAVE 0x7e
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/* these are for the ST M24C02 2kbit serial i2c eeprom */
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#define CFG_I2C_EEPROM_ADDR 0x50 /* base address */
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#define CFG_I2C_EEPROM_ADDR_LEN 1 /* bytes of address */
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/* mask of address bits that overflow into the "EEPROM chip address" */
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#define CFG_I2C_EEPROM_ADDR_OVERFLOW 0x07
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#define CFG_EEPROM_PAGE_WRITE_ENABLE 1 /* write eeprom in pages */
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#define CFG_EEPROM_PAGE_WRITE_BITS 4 /* 16 byte write page size */
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#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10 /* and takes up to 10 msec */
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#define CFG_I2C_MULTI_EEPROMS 1 /* hymod has two eeproms */
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#define CFG_I2C_RTC_ADDR 0x51 /* philips PCF8563 RTC address */
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/*
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* standard dtt sensor configuration - bottom bit will determine local or
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* remote sensor of the ADM1021, the rest determines index into
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* CFG_DTT_ADM1021 array below.
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*
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* On HYMOD board, the remote sensor should be connected to the MPC8260
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* temperature diode thingy, but an errata said this didn't work and
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* should be disabled - so it isn't connected.
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*/
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#if 0
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#define CONFIG_DTT_SENSORS { 0, 1 }
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#else
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#define CONFIG_DTT_SENSORS { 0 }
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#endif
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/*
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* ADM1021 temp sensor configuration (see dtt/adm1021.c for details).
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* there will be one entry in this array for each two (dummy) sensors in
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* CONFIG_DTT_SENSORS.
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*
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* For HYMOD board:
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* - only one ADM1021
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* - i2c addr 0x2a (both ADD0 and ADD1 are N/C)
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* - conversion rate 0x02 = 0.25 conversions/second
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* - ALERT ouput disabled
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* - local temp sensor enabled, min set to 0 deg, max set to 85 deg
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* - remote temp sensor disabled (see comment for CONFIG_DTT_SENSORS above)
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*/
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#define CFG_DTT_ADM1021 { { 0x2a, 0x02, 0, 1, 0, 85, 0, } }
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/*
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* Low Level Configuration Settings
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* (address mappings, register initial values, etc.)
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* You should know what you are doing if you make changes here.
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*/
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/*-----------------------------------------------------------------------
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* Hard Reset Configuration Words
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*
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* if you change bits in the HRCW, you must also change the CFG_*
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* defines for the various registers affected by the HRCW e.g. changing
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* HRCW_DPPCxx requires you to also change CFG_SIUMCR.
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*/
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#ifdef DEBUG
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#define CFG_HRCW_MASTER (HRCW_BPS11|HRCW_CIP|HRCW_L2CPC01|HRCW_DPPC10|\
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HRCW_ISB100|HRCW_BMS|HRCW_MMR11|HRCW_APPC10|\
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HRCW_MODCK_H0010)
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#else
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#define CFG_HRCW_MASTER (HRCW_BPS11|HRCW_CIP|HRCW_L2CPC01|HRCW_DPPC10|\
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HRCW_ISB100|HRCW_BMS|HRCW_MMR11|HRCW_APPC10|\
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HRCW_MODCK_H0101)
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#endif
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/* no slaves so just duplicate the master hrcw */
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#define CFG_HRCW_SLAVE1 CFG_HRCW_MASTER
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#define CFG_HRCW_SLAVE2 CFG_HRCW_MASTER
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#define CFG_HRCW_SLAVE3 CFG_HRCW_MASTER
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#define CFG_HRCW_SLAVE4 CFG_HRCW_MASTER
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#define CFG_HRCW_SLAVE5 CFG_HRCW_MASTER
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#define CFG_HRCW_SLAVE6 CFG_HRCW_MASTER
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#define CFG_HRCW_SLAVE7 CFG_HRCW_MASTER
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/*-----------------------------------------------------------------------
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* Internal Memory Mapped Register
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*/
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#define CFG_IMMR 0xF0000000
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/*-----------------------------------------------------------------------
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* Definitions for initial stack pointer and data area (in DPRAM)
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*/
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#define CFG_INIT_RAM_ADDR CFG_IMMR
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#define CFG_INIT_RAM_END 0x4000 /* End of used area in DPRAM */
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#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
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#define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
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#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
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/*-----------------------------------------------------------------------
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* Start addresses for the final memory configuration
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* (Set up by the startup code)
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* Please note that CFG_SDRAM_BASE _must_ start at 0
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*/
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#define CFG_SDRAM_BASE 0x00000000
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#define CFG_FLASH_BASE TEXT_BASE
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#define CFG_MONITOR_BASE TEXT_BASE
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#define CFG_FPGA_BASE 0x80000000
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/*
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* unfortunately, CFG_MONITOR_LEN must include the
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* (very large i.e. 256kB) environment flash sector
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*/
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#define CFG_MONITOR_LEN (512 << 10) /* Reserve 512 kB for Monitor*/
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#define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc()*/
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/*
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* For booting Linux, the board info and command line data
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* have to be in the first 8 MB of memory, since this is
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* the maximum mapped by the Linux kernel during initialization.
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*/
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#define CFG_BOOTMAPSZ (8 << 20) /* Initial Mem map for Linux*/
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/*-----------------------------------------------------------------------
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* FLASH organization
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*/
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#define CFG_MAX_FLASH_BANKS 2 /* max num of memory banks */
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#define CFG_MAX_FLASH_SECT 67 /* max num of sects on one chip */
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#define CFG_FLASH_ERASE_TOUT 120000 /* Flash Erase Timeout (in ms) */
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#define CFG_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (in ms) */
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#define CFG_ENV_IS_IN_FLASH 1
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#define CFG_ENV_SIZE 0x40000 /* Total Size of Environment Sector */
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#define CFG_ENV_SECT_SIZE 0x40000 /* see README - env sect real size */
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#define CFG_ENV_ADDR (CFG_FLASH_BASE+CFG_MONITOR_LEN-CFG_ENV_SECT_SIZE)
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/*-----------------------------------------------------------------------
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* Cache Configuration
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*/
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#define CFG_CACHELINE_SIZE 32 /* For MPC8260 CPU */
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#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
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#define CFG_CACHELINE_SHIFT 5 /* log base 2 of the above value*/
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#endif
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/*-----------------------------------------------------------------------
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* HIDx - Hardware Implementation-dependent Registers 2-11
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*-----------------------------------------------------------------------
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* HID0 also contains cache control - initially enable both caches and
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* invalidate contents, then the final state leaves only the instruction
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* cache enabled. Note that Power-On and Hard reset invalidate the caches,
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* but Soft reset does not.
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*
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* HID1 has only read-only information - nothing to set.
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*/
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#define CFG_HID0_INIT (HID0_ICE|HID0_DCE|HID0_ICFI|HID0_DCI|\
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HID0_IFEM|HID0_ABE)
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#ifdef DEBUG
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#define CFG_HID0_FINAL 0
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#else
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#define CFG_HID0_FINAL (HID0_ICE|HID0_IFEM|HID0_ABE)
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#endif
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#define CFG_HID2 0
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/*-----------------------------------------------------------------------
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* RMR - Reset Mode Register 5-5
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*-----------------------------------------------------------------------
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* turn on Checkstop Reset Enable
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*/
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#ifdef DEBUG
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#define CFG_RMR 0
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#else
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#define CFG_RMR RMR_CSRE
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#endif
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/*-----------------------------------------------------------------------
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* BCR - Bus Configuration 4-25
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*-----------------------------------------------------------------------
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*/
|
|
#define CFG_BCR (BCR_ETM)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* SIUMCR - SIU Module Configuration 4-31
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
#define CFG_SIUMCR (SIUMCR_DPPC10|SIUMCR_L2CPC01|\
|
|
SIUMCR_APPC10|SIUMCR_MMR11)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* SYPCR - System Protection Control 4-35
|
|
* SYPCR can only be written once after reset!
|
|
*-----------------------------------------------------------------------
|
|
* Watchdog & Bus Monitor Timer max, 60x & Local Bus Monitor enable
|
|
*/
|
|
#if defined(CONFIG_WATCHDOG)
|
|
#define CFG_SYPCR (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\
|
|
SYPCR_SWRI|SYPCR_SWP|SYPCR_SWE)
|
|
#else
|
|
#define CFG_SYPCR (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\
|
|
SYPCR_SWRI|SYPCR_SWP)
|
|
#endif /* CONFIG_WATCHDOG */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* TMCNTSC - Time Counter Status and Control 4-40
|
|
*-----------------------------------------------------------------------
|
|
* Clear once per Second and Alarm Interrupt Status, Set 32KHz timersclk,
|
|
* and enable Time Counter
|
|
*/
|
|
#define CFG_TMCNTSC (TMCNTSC_SEC|TMCNTSC_ALR|TMCNTSC_TCF|TMCNTSC_TCE)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* PISCR - Periodic Interrupt Status and Control 4-42
|
|
*-----------------------------------------------------------------------
|
|
* Clear Periodic Interrupt Status, Set 32KHz timersclk, and enable
|
|
* Periodic timer
|
|
*/
|
|
#define CFG_PISCR (PISCR_PS|PISCR_PTF|PISCR_PTE)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* SCCR - System Clock Control 9-8
|
|
*-----------------------------------------------------------------------
|
|
* Ensure DFBRG is Divide by 16
|
|
*/
|
|
#define CFG_SCCR (SCCR_DFBRG01)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* RCCR - RISC Controller Configuration 13-7
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
#define CFG_RCCR 0
|
|
|
|
/*
|
|
* Init Memory Controller:
|
|
*
|
|
* Bank Bus Machine PortSz Device
|
|
* ---- --- ------- ------ ------
|
|
* 0 60x GPCM 32 bit FLASH
|
|
* 1 60x GPCM 32 bit FLASH (same as 0 - unused for now)
|
|
* 2 60x SDRAM 64 bit SDRAM
|
|
* 3 Local UPMC 8 bit Main Xilinx configuration
|
|
* 4 Local GPCM 32 bit Main Xilinx register mode
|
|
* 5 Local UPMB 32 bit Main Xilinx port mode
|
|
* 6 Local UPMC 8 bit Mezz Xilinx configuration
|
|
*/
|
|
|
|
/*
|
|
* Bank 0 - FLASH
|
|
*
|
|
* Quotes from the HYMOD IO Board Reference manual:
|
|
*
|
|
* "The flash memory is two Intel StrataFlash chips, each configured for
|
|
* 16 bit operation and connected to give a 32 bit wide port."
|
|
*
|
|
* "The chip select logic is configured to respond to both *CS0 and *CS1.
|
|
* Therefore the FLASH memory will be mapped to both bank 0 and bank 1.
|
|
* It is suggested that bank 0 be read-only and bank 1 be read/write. The
|
|
* FLASH will then appear as ROM during boot."
|
|
*
|
|
* Initially, we are only going to use bank 0 in read/write mode.
|
|
*/
|
|
|
|
/* 32 bit, read-write, GPCM on 60x bus */
|
|
#define CFG_BR0_PRELIM ((CFG_FLASH_BASE&BRx_BA_MSK)|\
|
|
BRx_PS_32|BRx_MS_GPCM_P|BRx_V)
|
|
/* up to 32 Mb */
|
|
#define CFG_OR0_PRELIM (MEG_TO_AM(32)|ORxG_CSNT|ORxG_ACS_DIV2|ORxG_SCY_10_CLK)
|
|
|
|
/*
|
|
* Bank 2 - SDRAM
|
|
*
|
|
* Quotes from the HYMOD IO Board Reference manual:
|
|
*
|
|
* "The main memory is implemented using TC59SM716FTL-10 SDRAM and has a
|
|
* fixed size of 64 Mbytes. The Toshiba TC59SM716FTL-10 is a CMOS synchronous
|
|
* dynamic random access memory organised as 4 banks by 4096 rows by 512
|
|
* columns by 16 bits. Four chips provide a 64-bit port on the 60x bus."
|
|
*
|
|
* "The locations in SDRAM are accessed using multiplexed address pins to
|
|
* specify row and column. The pins also act to specify commands. The state
|
|
* of the inputs *RAS, *CAS and *WE defines the required action. The a10/AP
|
|
* pin may function as a row address or as the AUTO PRECHARGE control line,
|
|
* depending on the cycle type. The 60x bus SDRAM machine allows the MPC8260
|
|
* address lines to be configured to the required multiplexing scheme."
|
|
*/
|
|
|
|
#define CFG_SDRAM_SIZE 64
|
|
|
|
/* 64 bit, read-write, SDRAM on 60x bus */
|
|
#define CFG_BR2_PRELIM ((CFG_SDRAM_BASE&BRx_BA_MSK)|\
|
|
BRx_PS_64|BRx_MS_SDRAM_P|BRx_V)
|
|
/* 64 Mb, 4 int banks per dev, row start addr bit = A6, 12 row addr lines */
|
|
#define CFG_OR2_PRELIM (MEG_TO_AM(CFG_SDRAM_SIZE)|\
|
|
ORxS_BPD_4|ORxS_ROWST_PBI1_A6|ORxS_NUMR_12)
|
|
|
|
/*
|
|
* The 60x Bus SDRAM Mode Register (PDSMR) is set as follows:
|
|
*
|
|
* Page Based Interleaving, Refresh Enable, Address Multiplexing where A5
|
|
* is output on A16 pin (A6 on A17, and so on), use address pins A14-A16
|
|
* as bank select, A7 is output on SDA10 during an ACTIVATE command,
|
|
* earliest timing for ACTIVATE command after REFRESH command is 6 clocks,
|
|
* earliest timing for ACTIVATE or REFRESH command after PRECHARGE command
|
|
* is 2 clocks, earliest timing for READ/WRITE command after ACTIVATE
|
|
* command is 2 clocks, earliest timing for PRECHARGE after last data
|
|
* was read is 1 clock, earliest timing for PRECHARGE after last data
|
|
* was written is 1 clock, CAS Latency is 2.
|
|
*/
|
|
|
|
#define CFG_PSDMR (PSDMR_PBI|PSDMR_SDAM_A16_IS_A5|\
|
|
PSDMR_BSMA_A14_A16|PSDMR_SDA10_PBI1_A7|\
|
|
PSDMR_RFRC_6_CLK|PSDMR_PRETOACT_2W|\
|
|
PSDMR_ACTTORW_2W|PSDMR_LDOTOPRE_1C|\
|
|
PSDMR_WRC_1C|PSDMR_CL_2)
|
|
|
|
/*
|
|
* The 60x bus-assigned SDRAM Refresh Timer (PSRT) (10-31) and the Refresh
|
|
* Timers Prescale (PTP) value in the Memory Refresh Timer Prescaler Register
|
|
* (MPTPR) (10-32) must also be set up (it used to be called the Periodic Timer
|
|
* Prescaler, hence the P instead of the R). The refresh timer period is given
|
|
* by (note that there was a change in the 8260 UM Errata):
|
|
*
|
|
* TimerPeriod = (PSRT + 1) / Fmptc
|
|
*
|
|
* where Fmptc is the BusClock divided by PTP. i.e.
|
|
*
|
|
* TimerPeriod = (PSRT + 1) / (BusClock / PTP)
|
|
*
|
|
* or
|
|
*
|
|
* TImerPeriod = (PTP * (PSRT + 1)) / BusClock
|
|
*
|
|
* The requirement for the Toshiba TC59SM716FTL-10 is that there must be
|
|
* 4K refresh cycles every 64 ms. i.e. one refresh cycle every 64000/4096
|
|
* = 15.625 usecs.
|
|
*
|
|
* So PTP * (PSRT + 1) <= 15.625 * BusClock. At 66.666MHz, PSRT=31 and PTP=32
|
|
* appear to be reasonable.
|
|
*/
|
|
|
|
#ifdef DEBUG
|
|
#define CFG_PSRT 39
|
|
#define CFG_MPTPR MPTPR_PTP_DIV8
|
|
#else
|
|
#define CFG_PSRT 31
|
|
#define CFG_MPTPR MPTPR_PTP_DIV32
|
|
#endif
|
|
|
|
/*
|
|
* Banks 3,4,5 and 6 - FPGA access
|
|
*
|
|
* Quotes from the HYMOD IO Board Reference manual:
|
|
*
|
|
* "The IO Board is fitted with a Xilinx XCV300E main FPGA. Provision is made
|
|
* for configuring an optional FPGA on the mezzanine interface.
|
|
*
|
|
* Access to the FPGAs may be divided into several catagories:
|
|
*
|
|
* 1. Configuration
|
|
* 2. Register mode access
|
|
* 3. Port mode access
|
|
*
|
|
* The main FPGA is supported for modes 1, 2 and 3. The mezzanine FPGA can be
|
|
* configured only (mode 1). Consequently there are four access types.
|
|
*
|
|
* To improve interface performance and simplify software design, the four
|
|
* possible access types are separately mapped to different memory banks.
|
|
*
|
|
* All are accessed using the local bus."
|
|
*
|
|
* Device Mode Memory Bank Machine Port Size Access
|
|
*
|
|
* Main Configuration 3 UPMC 8bit R/W
|
|
* Main Register 4 GPCM 32bit R/W
|
|
* Main Port 5 UPMB 32bit R/W
|
|
* Mezzanine Configuration 6 UPMC 8bit W/O
|
|
*
|
|
* "Note that mezzanine mode 1 access is write-only."
|
|
*/
|
|
|
|
/* all the bank sizes must be a power of two, greater or equal to 32768 */
|
|
#define FPGA_MAIN_CFG_BASE (CFG_FPGA_BASE)
|
|
#define FPGA_MAIN_CFG_SIZE 32768
|
|
#define FPGA_MAIN_REG_BASE (FPGA_MAIN_CFG_BASE + FPGA_MAIN_CFG_SIZE)
|
|
#define FPGA_MAIN_REG_SIZE 32768
|
|
#define FPGA_MAIN_PORT_BASE (FPGA_MAIN_REG_BASE + FPGA_MAIN_REG_SIZE)
|
|
#define FPGA_MAIN_PORT_SIZE 32768
|
|
#define FPGA_MEZZ_CFG_BASE (FPGA_MAIN_PORT_BASE + FPGA_MAIN_PORT_SIZE)
|
|
#define FPGA_MEZZ_CFG_SIZE 32768
|
|
|
|
/* 8 bit, read-write, UPMC */
|
|
#define CFG_BR3_PRELIM (FPGA_MAIN_CFG_BASE|BRx_PS_8|BRx_MS_UPMC|BRx_V)
|
|
/* up to 32Kbyte, burst inhibit */
|
|
#define CFG_OR3_PRELIM (P2SZ_TO_AM(FPGA_MAIN_CFG_SIZE)|ORxU_BI)
|
|
|
|
/* 32 bit, read-write, GPCM */
|
|
#define CFG_BR4_PRELIM (FPGA_MAIN_REG_BASE|BRx_PS_32|BRx_MS_GPCM_L|BRx_V)
|
|
/* up to 32Kbyte */
|
|
#define CFG_OR4_PRELIM (P2SZ_TO_AM(FPGA_MAIN_REG_SIZE))
|
|
|
|
/* 32 bit, read-write, UPMB */
|
|
#define CFG_BR5_PRELIM (FPGA_MAIN_PORT_BASE|BRx_PS_32|BRx_MS_UPMB|BRx_V)
|
|
/* up to 32Kbyte */
|
|
#define CFG_OR5_PRELIM (P2SZ_TO_AM(FPGA_MAIN_PORT_SIZE)|ORxU_BI)
|
|
|
|
/* 8 bit, write-only, UPMC */
|
|
#define CFG_BR6_PRELIM (FPGA_MEZZ_CFG_BASE|BRx_PS_8|BRx_MS_UPMC|BRx_V)
|
|
/* up to 32Kbyte, burst inhibit */
|
|
#define CFG_OR6_PRELIM (P2SZ_TO_AM(FPGA_MEZZ_CFG_SIZE)|ORxU_BI)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* MBMR - Machine B Mode 10-27
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
#define CFG_MBMR (MxMR_BSEL|MxMR_OP_NORM) /* XXX - needs more */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* MCMR - Machine C Mode 10-27
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
#define CFG_MCMR (MxMR_BSEL|MxMR_DSx_2_CYCL) /* XXX - needs more */
|
|
|
|
/*
|
|
* FPGA I/O Port/Bit information
|
|
*/
|
|
|
|
#define FPGA_MAIN_PROG_PORT IOPIN_PORTA
|
|
#define FPGA_MAIN_PROG_PIN 4 /* PA4 */
|
|
#define FPGA_MAIN_INIT_PORT IOPIN_PORTA
|
|
#define FPGA_MAIN_INIT_PIN 5 /* PA5 */
|
|
#define FPGA_MAIN_DONE_PORT IOPIN_PORTA
|
|
#define FPGA_MAIN_DONE_PIN 6 /* PA6 */
|
|
|
|
#define FPGA_MEZZ_PROG_PORT IOPIN_PORTA
|
|
#define FPGA_MEZZ_PROG_PIN 0 /* PA0 */
|
|
#define FPGA_MEZZ_INIT_PORT IOPIN_PORTA
|
|
#define FPGA_MEZZ_INIT_PIN 1 /* PA1 */
|
|
#define FPGA_MEZZ_DONE_PORT IOPIN_PORTA
|
|
#define FPGA_MEZZ_DONE_PIN 2 /* PA2 */
|
|
#define FPGA_MEZZ_ENABLE_PORT IOPIN_PORTA
|
|
#define FPGA_MEZZ_ENABLE_PIN 3 /* PA3 */
|
|
|
|
/*
|
|
* FPGA Interrupt configuration
|
|
*/
|
|
#define FPGA_MAIN_IRQ SIU_INT_IRQ2
|
|
|
|
/*
|
|
* Internal Definitions
|
|
*
|
|
* Boot Flags
|
|
*/
|
|
#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH*/
|
|
#define BOOTFLAG_WARM 0x02 /* Software reboot */
|
|
|
|
#endif /* __CONFIG_H */
|