/*
- * (C) Copyright 2000-2003
+ * (C) Copyright 2000-2005
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
#define CONFIG_EXTRA_ENV_SETTINGS \
"netdev=eth0\0" \
"nfsargs=setenv bootargs root=/dev/nfs rw " \
- "nfsroot=$(serverip):$(rootpath)\0" \
+ "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" \
+ "addip=setenv bootargs ${bootargs} " \
+ "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \
+ ":${hostname}:${netdev}:off panic=1\0" \
"flash_nfs=run nfsargs addip;" \
- "bootm $(kernel_addr)\0" \
+ "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" \
+ "bootm ${kernel_addr} ${ramdisk_addr}\0" \
+ "net_nfs=tftp 200000 ${bootfile};run nfsargs addip;bootm\0" \
"rootpath=/opt/eldk/ppc_8xx\0" \
"bootfile=/tftpboot/TQM855M/uImage\0" \
"kernel_addr=40080000\0" \
#undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */
+/* enable I2C and select the hardware/software driver */
+#undef CONFIG_HARD_I2C /* I2C with hardware support */
+#define CONFIG_SOFT_I2C 1 /* I2C bit-banged */
+
+#define CFG_I2C_SPEED 93000 /* 93 kHz is supposed to work */
+#define CFG_I2C_SLAVE 0xFE
+
+#ifdef CONFIG_SOFT_I2C
+/*
+ * 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(2) /* 1/4 I2C clock duration */
+#endif /* CONFIG_SOFT_I2C */
+
+#define CFG_I2C_EEPROM_ADDR 0x50 /* EEPROM AT24C64 */
+#define CFG_I2C_EEPROM_ADDR_LEN 2 /* two byte address */
+#if 0
+#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10 /* takes up to 10 msec */
+#define CFG_I2C_EEPROM_ADDR_OVERFLOW 0x01
+#define CFG_EEPROM_PAGE_WRITE_BITS 5
+#endif
+
#define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE)
#define CONFIG_MAC_PARTITION
#define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \
CFG_CMD_ASKENV | \
+ CFG_CMD_DATE | \
CFG_CMD_DHCP | \
+ CFG_CMD_EEPROM | \
CFG_CMD_IDE | \
- CFG_CMD_DATE )
+ CFG_CMD_NFS | \
+ CFG_CMD_SNTP )
/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
#include <cmd_confdefs.h>
*-----------------------------------------------------------------------
* 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 CFG_PLPRCR \
- ( (5-1)<<PLPRCR_MF_SHIFT | PLPRCR_TEXPS | PLPRCR_TMIST )
-#else /* up to 66 MHz we use a 1:1 clock */
#define CFG_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
-#endif /* CONFIG_80MHz */
/*-----------------------------------------------------------------------
* SCCR - System Clock and reset Control Register 15-27
* power management and some other internal clocks
*/
#define SCCR_MASK SCCR_EBDF11
-#ifdef CONFIG_80MHz /* for 80 MHz, we use a 16 MHz clock * 5 */
-#define CFG_SCCR (/* SCCR_TBS | */ \
- SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
- SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
- SCCR_DFALCD00)
-#else /* up to 66 MHz we use a 1:1 clock */
-#define CFG_SCCR (SCCR_TBS | \
- SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
+#define CFG_SCCR (SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
SCCR_DFALCD00)
-#endif /* CONFIG_80MHz */
/*-----------------------------------------------------------------------
* PCMCIA stuff
/*
* FLASH timing:
*/
-#if defined(CONFIG_80MHz)
-/* 80 MHz CPU - 40 MHz bus: ACS = 00, TRLX = 0, CSNT = 1, SCY = 3, EHTR = 1 */
-#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | 0 | OR_CSNT_SAM | \
- OR_SCY_3_CLK | OR_EHTR | OR_BI)
-#elif defined(CONFIG_66MHz)
-/* 66 MHz CPU - 66 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
OR_SCY_3_CLK | OR_EHTR | OR_BI)
-#else /* 50 MHz */
-/* 50 MHz CPU - 50 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 2, EHTR = 1 */
-#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
- OR_SCY_2_CLK | OR_EHTR | OR_BI)
-#endif /*CONFIG_??MHz */
#define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
#define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
* 66 Mhz => 66.000.000 / Divider = 129
* 80 Mhz => 80.000.000 / Divider = 156
*/
-#if defined(CONFIG_80MHz)
-#define CFG_MAMR_PTA 156
-#elif defined(CONFIG_66MHz)
-#define CFG_MAMR_PTA 129
-#else /* 50 MHz */
-#define CFG_MAMR_PTA 98
-#endif /*CONFIG_??MHz */
+
+#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
projects / oweals / u-boot.git / blobdiff