#define CONFIG_MPC8548 1 /* MPC8548 specific */
#define CONFIG_SBC8548 1 /* SBC8548 board specific */
+/*
+ * If you want to boot from the SODIMM flash, instead of the soldered
+ * on flash, set this, and change JP12, SW2:8 accordingly.
+ */
+#undef CONFIG_SYS_ALT_BOOT
+
#ifndef CONFIG_SYS_TEXT_BASE
+#ifdef CONFIG_SYS_ALT_BOOT
+#define CONFIG_SYS_TEXT_BASE 0xfff00000
+#else
#define CONFIG_SYS_TEXT_BASE 0xfffa0000
#endif
+#endif
#undef CONFIG_RIO
/* DDR Setup */
#define CONFIG_FSL_DDR2
#undef CONFIG_FSL_DDR_INTERACTIVE
+#undef CONFIG_DDR_ECC /* only for ECC DDR module */
+/*
+ * A hardware errata caused the LBC SDRAM SPD and the DDR2 SPD
+ * to collide, meaning you couldn't reliably read either. So
+ * physically remove the LBC PC100 SDRAM module from the board
+ * before enabling the two SPD options below, or check that you
+ * have the hardware fix on your board via "i2c probe" and looking
+ * for a device at 0x53.
+ */
#undef CONFIG_SPD_EEPROM /* Use SPD EEPROM for DDR setup */
#undef CONFIG_DDR_SPD
-#undef CONFIG_DDR_ECC /* only for ECC DDR module */
#define CONFIG_ECC_INIT_VIA_DDRCONTROLLER /* DDR controller or DMA? */
#define CONFIG_MEM_INIT_VALUE 0xDeadBeef
#define CONFIG_DIMM_SLOTS_PER_CTLR 1
#define CONFIG_CHIP_SELECTS_PER_CTRL 2
-/* I2C addresses of SPD EEPROMs */
+/*
+ * The hardware fix for the I2C address collision puts the DDR
+ * SPD at 0x53, but if we are running on an older board w/o the
+ * fix, it will still be at 0x51. We check 0x53 1st.
+ */
#define SPD_EEPROM_ADDRESS 0x51 /* CTLR 0 DIMM 0 */
+#define ALT_SPD_EEPROM_ADDRESS 0x53 /* CTLR 0 DIMM 0 */
/*
* Make sure required options are set
*/
#ifndef CONFIG_SPD_EEPROM
#define CONFIG_SYS_SDRAM_SIZE 256 /* DDR is 256MB */
+ #define CONFIG_SYS_DDR_CONTROL 0xc300c000
#endif
#undef CONFIG_CLOCKS_IN_MHZ
/*
* FLASH on the Local Bus
* Two banks, one 8MB the other 64MB, using the CFI driver.
- * Boot from BR0/OR0 bank at 0xff80_0000
- * Alternate BR6/OR6 bank at 0xfb80_0000
+ * JP12+SW2.8 are used to swap CS0 and CS6, defaults are to have
+ * CS0 the 8MB boot flash, and CS6 the 64MB flash.
+ *
+ * Default:
+ * ec00_0000 efff_ffff 64MB SODIMM
+ * ff80_0000 ffff_ffff 8MB soldered flash
+ *
+ * Alternate:
+ * ef80_0000 efff_ffff 8MB soldered flash
+ * fc00_0000 ffff_ffff 64MB SODIMM
*
- * BR0:
+ * BR0_8M:
* Base address 0 = 0xff80_0000 = BR0[0:16] = 1111 1111 1000 0000 0
* Port Size = 8 bits = BRx[19:20] = 01
* Use GPCM = BRx[24:26] = 000
* Valid = BRx[31] = 1
*
- * 0 4 8 12 16 20 24 28
- * 1111 1111 1000 0000 0000 1000 0000 0001 = ff800801 BR0
- *
- * BR6:
- * Base address 6 = 0xfb80_0000 = BR6[0:16] = 1111 1011 1000 0000 0
+ * BR0_64M:
+ * Base address 0 = 0xfc00_0000 = BR0[0:16] = 1111 1100 0000 0000 0
* Port Size = 32 bits = BRx[19:20] = 11
+ *
+ * 0 4 8 12 16 20 24 28
+ * 1111 1111 1000 0000 0000 1000 0000 0001 = ff800801 BR0_8M
+ * 1111 1100 0000 0000 0001 1000 0000 0001 = fc001801 BR0_64M
+ */
+#define CONFIG_SYS_BR0_8M 0xff800801
+#define CONFIG_SYS_BR0_64M 0xfc001801
+
+/*
+ * BR6_8M:
+ * Base address 6 = 0xef80_0000 = BR6[0:16] = 1110 1111 1000 0000 0
+ * Port Size = 8 bits = BRx[19:20] = 01
* Use GPCM = BRx[24:26] = 000
* Valid = BRx[31] = 1
+
+ * BR6_64M:
+ * Base address 6 = 0xec00_0000 = BR6[0:16] = 1110 1100 0000 0000 0
+ * Port Size = 32 bits = BRx[19:20] = 11
*
* 0 4 8 12 16 20 24 28
- * 1111 1011 1000 0000 0001 1000 0000 0001 = fb801801 BR6
- *
- * OR0:
+ * 1110 1111 1000 0000 0000 1000 0000 0001 = ef800801 BR6_8M
+ * 1110 1100 0000 0000 0001 1000 0000 0001 = ec001801 BR6_64M
+ */
+#define CONFIG_SYS_BR6_8M 0xef800801
+#define CONFIG_SYS_BR6_64M 0xec001801
+
+/*
+ * OR0_8M:
* Addr Mask = 8M = OR1[0:16] = 1111 1111 1000 0000 0
* XAM = OR0[17:18] = 11
* CSNT = OR0[20] = 1
* TRLX = use relaxed timing = OR0[29] = 1
* EAD = use external address latch delay = OR0[31] = 1
*
- * 0 4 8 12 16 20 24 28
- * 1111 1111 1000 0000 0110 1110 0110 0101 = ff806e65 OR0
+ * OR0_64M:
+ * Addr Mask = 64M = OR1[0:16] = 1111 1100 0000 0000 0
*
- * OR6:
- * Addr Mask = 64M = OR6[0:16] = 1111 1000 0000 0000 0
+ *
+ * 0 4 8 12 16 20 24 28
+ * 1111 1111 1000 0000 0110 1110 0110 0101 = ff806e65 OR0_8M
+ * 1111 1100 0000 0000 0110 1110 0110 0101 = fc006e65 OR0_64M
+ */
+#define CONFIG_SYS_OR0_8M 0xff806e65
+#define CONFIG_SYS_OR0_64M 0xfc006e65
+
+/*
+ * OR6_8M:
+ * Addr Mask = 8M = OR6[0:16] = 1111 1111 1000 0000 0
* XAM = OR6[17:18] = 11
* CSNT = OR6[20] = 1
* ACS = half cycle delay = OR6[21:22] = 11
* TRLX = use relaxed timing = OR6[29] = 1
* EAD = use external address latch delay = OR6[31] = 1
*
+ * OR6_64M:
+ * Addr Mask = 64M = OR6[0:16] = 1111 1100 0000 0000 0
+ *
* 0 4 8 12 16 20 24 28
- * 1111 1000 0000 0000 0110 1110 0110 0101 = f8006e65 OR6
+ * 1111 1111 1000 0000 0110 1110 0110 0101 = ff806e65 OR6_8M
+ * 1111 1100 0000 0000 0110 1110 0110 0101 = fc006e65 OR6_64M
*/
+#define CONFIG_SYS_OR6_8M 0xff806e65
+#define CONFIG_SYS_OR6_64M 0xfc006e65
+#ifndef CONFIG_SYS_ALT_BOOT /* JP12 in default position */
#define CONFIG_SYS_BOOT_BLOCK 0xff800000 /* start of 8MB Flash */
-#define CONFIG_SYS_ALT_FLASH 0xfb800000 /* 64MB "user" flash */
-#define CONFIG_SYS_FLASH_BASE CONFIG_SYS_BOOT_BLOCK /* start of FLASH 16M */
+#define CONFIG_SYS_ALT_FLASH 0xec000000 /* 64MB "user" flash */
+
+#define CONFIG_SYS_BR0_PRELIM CONFIG_SYS_BR0_8M
+#define CONFIG_SYS_OR0_PRELIM CONFIG_SYS_OR0_8M
-#define CONFIG_SYS_BR0_PRELIM 0xff800801
-#define CONFIG_SYS_BR6_PRELIM 0xfb801801
+#define CONFIG_SYS_BR6_PRELIM CONFIG_SYS_BR6_64M
+#define CONFIG_SYS_OR6_PRELIM CONFIG_SYS_OR6_64M
+#else /* JP12 in alternate position */
+#define CONFIG_SYS_BOOT_BLOCK 0xfc000000 /* start 64MB Flash */
+#define CONFIG_SYS_ALT_FLASH 0xef800000 /* 8MB soldered flash */
-#define CONFIG_SYS_OR0_PRELIM 0xff806e65
-#define CONFIG_SYS_OR6_PRELIM 0xf8006e65
+#define CONFIG_SYS_BR0_PRELIM CONFIG_SYS_BR0_64M
+#define CONFIG_SYS_OR0_PRELIM CONFIG_SYS_OR0_64M
+#define CONFIG_SYS_BR6_PRELIM CONFIG_SYS_BR6_8M
+#define CONFIG_SYS_OR6_PRELIM CONFIG_SYS_OR6_8M
+#endif
+
+#define CONFIG_SYS_FLASH_BASE CONFIG_SYS_BOOT_BLOCK
#define CONFIG_SYS_FLASH_BANKS_LIST {CONFIG_SYS_FLASH_BASE, \
CONFIG_SYS_ALT_FLASH}
#define CONFIG_SYS_MAX_FLASH_BANKS 2 /* number of banks */
/*
* SDRAM on the Local Bus (CS3 and CS4)
+ * Note that most boards have a hardware errata where both the
+ * LBC SDRAM and the DDR2 SDRAM decode at 0x51, making it impossible
+ * to use CONFIG_DDR_SPD unless you physically remove the LBC DIMM.
+ * A hardware workaround is also available, see README.sbc8548 file.
*/
#define CONFIG_SYS_LBC_SDRAM_BASE 0xf0000000 /* Localbus SDRAM */
#define CONFIG_SYS_LBC_SDRAM_SIZE 128 /* LBC SDRAM is 128MB */
/*
* Common settings for all Local Bus SDRAM commands.
- * At run time, either BSMA1516 (for CPU 1.1)
- * or BSMA1617 (for CPU 1.0) (old)
- * is OR'ed in too.
*/
#define CONFIG_SYS_LBC_LSDMR_COMMON ( LSDMR_RFCR16 \
- | LSDMR_PRETOACT7 \
- | LSDMR_ACTTORW7 \
+ | LSDMR_BSMA1516 \
+ | LSDMR_PRETOACT3 \
+ | LSDMR_ACTTORW3 \
+ | LSDMR_BUFCMD \
| LSDMR_BL8 \
- | LSDMR_WRC4 \
+ | LSDMR_WRC2 \
| LSDMR_CL3 \
- | LSDMR_RFEN \
)
+#define CONFIG_SYS_LBC_LSDMR_PCHALL \
+ (CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_OP_PCHALL)
+#define CONFIG_SYS_LBC_LSDMR_ARFRSH \
+ (CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_OP_ARFRSH)
+#define CONFIG_SYS_LBC_LSDMR_MRW \
+ (CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_OP_MRW)
+#define CONFIG_SYS_LBC_LSDMR_RFEN \
+ (CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_RFEN)
+
#define CONFIG_SYS_INIT_RAM_LOCK 1
#define CONFIG_SYS_INIT_RAM_ADDR 0xe4010000 /* Initial RAM address */
#define CONFIG_SYS_INIT_RAM_SIZE 0x4000 /* Size of used area in RAM */
* thing for MONITOR_LEN in both cases.
*/
#define CONFIG_SYS_MONITOR_LEN (~CONFIG_SYS_TEXT_BASE + 1)
-#define CONFIG_SYS_MALLOC_LEN (128 * 1024) /* Reserved for malloc */
+#define CONFIG_SYS_MALLOC_LEN (1024 * 1024) /* Reserved for malloc */
/* Serial Port */
#define CONFIG_CONS_INDEX 1
/* Use the HUSH parser */
#define CONFIG_SYS_HUSH_PARSER
-#ifdef CONFIG_SYS_HUSH_PARSER
-#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
-#endif
/* pass open firmware flat tree */
#define CONFIG_OF_LIBFDT 1
#define CONFIG_BAUDRATE 115200
#define CONFIG_EXTRA_ENV_SETTINGS \
- "netdev=eth0\0" \
- "uboot=" MK_STR(CONFIG_UBOOTPATH) "\0" \
- "tftpflash=tftpboot $loadaddr $uboot; " \
- "protect off " MK_STR(CONFIG_SYS_TEXT_BASE) " +$filesize; " \
- "erase " MK_STR(CONFIG_SYS_TEXT_BASE) " +$filesize; " \
- "cp.b $loadaddr " MK_STR(CONFIG_SYS_TEXT_BASE) " $filesize; " \
- "protect on " MK_STR(CONFIG_SYS_TEXT_BASE) " +$filesize; " \
- "cmp.b $loadaddr " MK_STR(CONFIG_SYS_TEXT_BASE) " $filesize\0" \
- "consoledev=ttyS0\0" \
- "ramdiskaddr=2000000\0" \
- "ramdiskfile=uRamdisk\0" \
- "fdtaddr=c00000\0" \
- "fdtfile=sbc8548.dtb\0"
+"netdev=eth0\0" \
+"uboot=" __stringify(CONFIG_UBOOTPATH) "\0" \
+"tftpflash=tftpboot $loadaddr $uboot; " \
+ "protect off " __stringify(CONFIG_SYS_TEXT_BASE) " +$filesize; " \
+ "erase " __stringify(CONFIG_SYS_TEXT_BASE) " +$filesize; " \
+ "cp.b $loadaddr " __stringify(CONFIG_SYS_TEXT_BASE) " $filesize; " \
+ "protect on " __stringify(CONFIG_SYS_TEXT_BASE) " +$filesize; " \
+ "cmp.b $loadaddr " __stringify(CONFIG_SYS_TEXT_BASE) " $filesize\0" \
+"consoledev=ttyS0\0" \
+"ramdiskaddr=2000000\0" \
+"ramdiskfile=uRamdisk\0" \
+"fdtaddr=c00000\0" \
+"fdtfile=sbc8548.dtb\0"
#define CONFIG_NFSBOOTCOMMAND \
"setenv bootargs root=/dev/nfs rw " \