mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 09:58:52 +09:00
![Pavel Herrmann](/assets/img/avatar_default.png)
move most of mpc8xx hooks from cmd_ide.c into ide_preinit() and newly created ide_init_postreset() (invoked after calling ide_reset after ide_preinit), some cleanup to make checkpatch happy, enable IDE init hooks in configs of affected boards. confusingly, these hooks are used by more than just mpc8xx-based boards, and therefore are placed in arch/ppc/lib/ note: checkpatch still emits warnings about using volatile Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com>
479 lines
17 KiB
C
479 lines
17 KiB
C
/*
|
|
* (C) Copyright 2000-2005
|
|
* 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_R360MPI 1
|
|
|
|
#define CONFIG_SYS_TEXT_BASE 0x40000000
|
|
|
|
#define CONFIG_LCD
|
|
#undef CONFIG_EDT32F10
|
|
#define CONFIG_SHARP_LQ057Q3DC02
|
|
|
|
#define CONFIG_SPLASH_SCREEN
|
|
|
|
#define MPC8XX_FACT 1 /* Multiply by 1 */
|
|
#define MPC8XX_XIN 50000000 /* 50 MHz in */
|
|
#define CONFIG_8xx_GCLK_FREQ 50000000 /* define if can't use get_gclk_freq */
|
|
|
|
#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 in bps */
|
|
#if 0
|
|
#define CONFIG_BOOTDELAY 0 /* immediate boot */
|
|
#else
|
|
#define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
|
|
#endif
|
|
|
|
#define CONFIG_CLOCKS_IN_MHZ 1 /* clocks passsed to Linux in MHz */
|
|
|
|
#define CONFIG_PREBOOT "echo;echo Type \\\"run flash_nfs\\\" to mount root filesystem over NFS;echo"
|
|
|
|
#undef CONFIG_BOOTARGS
|
|
#define CONFIG_BOOTCOMMAND \
|
|
"bootp; " \
|
|
"setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \
|
|
"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " \
|
|
"bootm"
|
|
|
|
#undef CONFIG_SCC1_ENET
|
|
#define CONFIG_SCC2_ENET
|
|
|
|
#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
|
|
#undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */
|
|
|
|
#define CONFIG_MISC_INIT_R /* have misc_init_r() function */
|
|
|
|
#undef CONFIG_WATCHDOG /* watchdog disabled */
|
|
|
|
#define CONFIG_CAN_DRIVER /* CAN Driver support enabled */
|
|
|
|
/*
|
|
* BOOTP options
|
|
*/
|
|
#define CONFIG_BOOTP_SUBNETMASK
|
|
#define CONFIG_BOOTP_GATEWAY
|
|
#define CONFIG_BOOTP_HOSTNAME
|
|
#define CONFIG_BOOTP_BOOTPATH
|
|
#define CONFIG_BOOTP_BOOTFILESIZE
|
|
|
|
#define CONFIG_MAC_PARTITION
|
|
#define CONFIG_DOS_PARTITION
|
|
|
|
#define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
|
|
|
|
#define CONFIG_HARD_I2C 1 /* To I2C with hardware support */
|
|
#undef CONFIG_SORT_I2C /* To I2C with software support */
|
|
#define CONFIG_SYS_I2C_SPEED 4700 /* I2C speed and slave address */
|
|
#define CONFIG_SYS_I2C_SLAVE 0x7F
|
|
|
|
/*
|
|
* Software (bit-bang) I2C driver configuration
|
|
*/
|
|
#define PB_SCL 0x00000020 /* PB 26 */
|
|
#define PB_SDA 0x00000010 /* PB 27 */
|
|
|
|
#define I2C_INIT (immr->im_cpm.cp_pbdir |= PB_SCL)
|
|
#define I2C_ACTIVE (immr->im_cpm.cp_pbdir |= PB_SDA)
|
|
#define I2C_TRISTATE (immr->im_cpm.cp_pbdir &= ~PB_SDA)
|
|
#define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
|
|
#define I2C_SDA(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \
|
|
else immr->im_cpm.cp_pbdat &= ~PB_SDA
|
|
#define I2C_SCL(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \
|
|
else immr->im_cpm.cp_pbdat &= ~PB_SCL
|
|
#define I2C_DELAY udelay(50)
|
|
|
|
#define CONFIG_SYS_I2C_LCD_ADDR 0x8 /* LCD Control */
|
|
#define CONFIG_SYS_I2C_KEY_ADDR 0x9 /* Keyboard coprocessor */
|
|
#define CONFIG_SYS_I2C_TEM_ADDR 0x49 /* Temperature Sensors */
|
|
|
|
|
|
/*
|
|
* Command line configuration.
|
|
*/
|
|
#include <config_cmd_default.h>
|
|
|
|
#define CONFIG_CMD_BMP
|
|
#define CONFIG_CMD_BSP
|
|
#define CONFIG_CMD_DATE
|
|
#define CONFIG_CMD_DHCP
|
|
#define CONFIG_CMD_I2C
|
|
#define CONFIG_CMD_IDE
|
|
#define CONFIG_CMD_JFFS2
|
|
#define CONFIG_CMD_NFS
|
|
#define CONFIG_CMD_PCMCIA
|
|
#define CONFIG_CMD_SNTP
|
|
|
|
|
|
/*
|
|
* Miscellaneous configurable options
|
|
*/
|
|
#define CONFIG_SYS_DEVICE_NULLDEV 1 /* we need the null device */
|
|
#define CONFIG_SYS_CONSOLE_IS_IN_ENV 1 /* must set console from env */
|
|
|
|
#define CONFIG_SYS_LONGHELP /* undef to save memory */
|
|
#define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
|
|
#if defined(CONFIG_CMD_KGDB)
|
|
#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
|
|
#else
|
|
#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
|
|
#endif
|
|
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
|
|
#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
|
|
#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
|
|
|
|
#define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */
|
|
#define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
|
|
|
|
#define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */
|
|
|
|
#define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
|
|
|
|
/*
|
|
* JFFS2 partitions
|
|
*/
|
|
/* No command line, one static partition
|
|
* use all the space starting at offset 3MB*/
|
|
#undef CONFIG_CMD_MTDPARTS
|
|
#define CONFIG_JFFS2_DEV "nor0"
|
|
#define CONFIG_JFFS2_PART_SIZE 0xFFFFFFFF
|
|
#define CONFIG_JFFS2_PART_OFFSET 0x00300000
|
|
|
|
/* mtdparts command line support */
|
|
/*
|
|
#define CONFIG_CMD_MTDPARTS
|
|
#define MTDIDS_DEFAULT "nor0=r360-0"
|
|
#define MTDPARTS_DEFAULT "mtdparts=r360-0:-@3m(user)"
|
|
*/
|
|
|
|
/*
|
|
* 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 CONFIG_SYS_IMMR 0xFF000000
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Definitions for initial stack pointer and data area (in DPRAM)
|
|
*/
|
|
#define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
|
|
#define CONFIG_SYS_INIT_RAM_SIZE 0x2F00 /* Size of used area in DPRAM */
|
|
#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
|
|
#define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Start addresses for the final memory configuration
|
|
* (Set up by the startup code)
|
|
* Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
|
|
*/
|
|
#define CONFIG_SYS_SDRAM_BASE 0x00000000
|
|
#define CONFIG_SYS_FLASH_BASE 0x40000000
|
|
#if defined(DEBUG)
|
|
#define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
|
|
#else
|
|
#define CONFIG_SYS_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */
|
|
#endif
|
|
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
|
|
#define CONFIG_SYS_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 CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* FLASH organization
|
|
*/
|
|
#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
|
|
#define CONFIG_SYS_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
|
|
|
|
#define CONFIG_SYS_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
|
|
#define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
|
|
|
|
#define CONFIG_ENV_IS_IN_FLASH 1
|
|
#define CONFIG_ENV_OFFSET 0x40000 /* Offset of Environment */
|
|
#define CONFIG_ENV_SECT_SIZE 0x20000 /* Total Size of Environment sector */
|
|
#define CONFIG_ENV_SIZE 0x4000 /* Used Size of Environment sector */
|
|
#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Cache Configuration
|
|
*/
|
|
#define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
|
|
#if defined(CONFIG_CMD_KGDB)
|
|
#define CONFIG_SYS_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 CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
|
|
SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
|
|
#else
|
|
#define CONFIG_SYS_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
|
|
*/
|
|
#define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* TBSCR - Time Base Status and Control 11-26
|
|
*-----------------------------------------------------------------------
|
|
* Clear Reference Interrupt Status, Timebase freezing enabled
|
|
*/
|
|
#define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBE)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* RTCSC - Real-Time Clock Status and Control Register 11-27
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
#define CONFIG_SYS_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 CONFIG_SYS_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
|
|
*
|
|
* If this is a 80 MHz CPU, set PLL multiplication factor to 5 (5*16=80)!
|
|
*/
|
|
#ifdef CONFIG_80MHz /* for 80 MHz, we use a 16 MHz clock * 5 */
|
|
#define CONFIG_SYS_PLPRCR \
|
|
( (5-1)<<PLPRCR_MF_SHIFT | PLPRCR_TEXPS | PLPRCR_TMIST )
|
|
#else /* up to 50 MHz we use a 1:1 clock */
|
|
#define CONFIG_SYS_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
|
|
#endif /* CONFIG_80MHz */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* 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 CONFIG_SYS_SCCR (SCCR_TBS | \
|
|
SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
|
|
SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
|
|
SCCR_DFALCD00)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* PCMCIA stuff
|
|
*-----------------------------------------------------------------------
|
|
*
|
|
*/
|
|
#define CONFIG_SYS_PCMCIA_MEM_ADDR (0xE0000000)
|
|
#define CONFIG_SYS_PCMCIA_MEM_SIZE ( 64 << 20 )
|
|
#define CONFIG_SYS_PCMCIA_DMA_ADDR (0xE4000000)
|
|
#define CONFIG_SYS_PCMCIA_DMA_SIZE ( 64 << 20 )
|
|
#define CONFIG_SYS_PCMCIA_ATTRB_ADDR (0xE8000000)
|
|
#define CONFIG_SYS_PCMCIA_ATTRB_SIZE ( 64 << 20 )
|
|
#define CONFIG_SYS_PCMCIA_IO_ADDR (0xEC000000)
|
|
#define CONFIG_SYS_PCMCIA_IO_SIZE ( 64 << 20 )
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
#if 1
|
|
#define CONFIG_IDE_PREINIT 1 /* Use preinit IDE hook */
|
|
#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 CONFIG_SYS_IDE_MAXBUS 1 /* max. 1 IDE bus */
|
|
#define CONFIG_SYS_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */
|
|
|
|
#define CONFIG_SYS_ATA_IDE0_OFFSET 0x0000
|
|
|
|
#define CONFIG_SYS_ATA_BASE_ADDR CONFIG_SYS_PCMCIA_MEM_ADDR
|
|
|
|
/* Offset for data I/O */
|
|
#define CONFIG_SYS_ATA_DATA_OFFSET (CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
|
|
|
|
/* Offset for normal register accesses */
|
|
#define CONFIG_SYS_ATA_REG_OFFSET (2 * CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
|
|
|
|
/* Offset for alternate registers */
|
|
#define CONFIG_SYS_ATA_ALT_OFFSET 0x0100
|
|
#endif
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*
|
|
*/
|
|
#define CONFIG_SYS_DER 0
|
|
|
|
/*
|
|
* Init Memory Controller:
|
|
*
|
|
* BR0/1 and OR0/1 (FLASH)
|
|
*/
|
|
|
|
#define FLASH_BASE0_PRELIM 0x40000000 /* 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 CONFIG_SYS_REMAP_OR_AM 0x80000000 /* OR addr mask */
|
|
#define CONFIG_SYS_PRELIM_OR_AM 0xFF000000 /* OR addr mask */
|
|
|
|
/*
|
|
* FLASH timing:
|
|
*/
|
|
#define CONFIG_SYS_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_SCY_7_CLK | OR_BI)
|
|
|
|
#define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
|
|
#define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
|
|
#define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
|
|
|
|
|
|
/*
|
|
* BR2 and OR2 (SDRAM)
|
|
*
|
|
*/
|
|
#define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */
|
|
#define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
|
|
|
|
#define CONFIG_SYS_PRELIM_OR2_AM 0xF8000000 /* OR addr mask */
|
|
|
|
/* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
|
|
#define CONFIG_SYS_OR_TIMING_SDRAM (OR_ACS_DIV1 | OR_CSNT_SAM | \
|
|
OR_SCY_0_CLK | OR_G5LS)
|
|
|
|
#define CONFIG_SYS_OR2_PRELIM (CONFIG_SYS_PRELIM_OR2_AM | CONFIG_SYS_OR_TIMING_SDRAM )
|
|
#define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
|
|
|
|
/*
|
|
* BR3 and OR3 (CAN Controller)
|
|
*/
|
|
#ifdef CONFIG_CAN_DRIVER
|
|
#define CONFIG_SYS_CAN_BASE 0xC0000000 /* CAN base address */
|
|
#define CONFIG_SYS_CAN_OR_AM 0xFFFF8000 /* 32 kB address mask */
|
|
#define CONFIG_SYS_OR3_CAN (CONFIG_SYS_CAN_OR_AM | OR_G5LA |OR_BI)
|
|
#define CONFIG_SYS_BR3_CAN ((CONFIG_SYS_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
|
|
*/
|
|
#if defined(CONFIG_80MHz)
|
|
#define CONFIG_SYS_MAMR_PTA 156
|
|
#elif defined(CONFIG_66MHz)
|
|
#define CONFIG_SYS_MAMR_PTA 129
|
|
#else /* 50 MHz */
|
|
#define CONFIG_SYS_MAMR_PTA 98
|
|
#endif /*CONFIG_??MHz */
|
|
|
|
/*
|
|
* 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 CONFIG_SYS_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
|
|
* #define CONFIG_SYS_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
|
|
*/
|
|
#define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
|
|
#define CONFIG_SYS_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 CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
|
|
#define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
|
|
|
|
/*
|
|
* MAMR settings for SDRAM
|
|
*/
|
|
|
|
/* 8 column SDRAM */
|
|
#define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_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 CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_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)
|
|
|
|
#endif /* __CONFIG_H */
|