diff options
| -rw-r--r-- | CHANGELOG | 5 | ||||
| -rw-r--r-- | board/dbau1x00/README | 34 | ||||
| -rw-r--r-- | board/nc650/nc650.c | 10 | ||||
| -rw-r--r-- | include/configs/NC650.h | 52 |
4 files changed, 80 insertions, 21 deletions
@@ -2,6 +2,11 @@ Changes since U-Boot 1.1.1: ====================================================================== +* Enable NAND flash support for NC650 board. + +* Patch by Thomas Lange 07 Oct 2004: + Updated README for DBAu1x00 boards to match current status + * Patch by Philippe Robin, 28 Sept 2004: Fix Flash support for Versatile. diff --git a/board/dbau1x00/README b/board/dbau1x00/README index 024fbbe..d8f9ecc 100644 --- a/board/dbau1x00/README +++ b/board/dbau1x00/README @@ -1,30 +1,40 @@ -By Thomas.Lange@corelatus.se 2003-10-06 +By Thomas.Lange@corelatus.se 2004-Oct-05 ---------------------------------------- -DbAu1000 is a development board from AMD containing -an Alchemy AU1000 with mips32 core. +DbAu1xx0 are development boards from AMD containing +an Alchemy AU1xx0 series cpu with mips32 core. +Existing cpu:s are Au1000, Au1100, Au1500 and Au1550 Limitations & comments ---------------------- -I assume that you set board to BIG endian! -Little endian not tested, most probably broken. +Support was originally big endian only. +I have not tested, but several u-boot users report working +configurations in little endian mode. I named the board dbau1x00, to allow support for all three development boards -some day ( dbau1000, dbau1100 and dbau1500 ). +( dbau1000, dbau1100 and dbau1500 ). +Now there is a new board called dbau1550 also, which +should be supported RSN. -I only have a dbau1000, so all testing is limited -to this board! +I only have a dbau1000, so my testing is limited +to this board. The board has two different flash banks, that can be selected via dip switch. This makes it possible to test new bootloaders without thrashing the YAMON -boot loader deliviered with board. +boot loader delivered with board. + +NOTE! When you switch between the two boot flashes, the +base addresses will be swapped. +Have this in mind when you compile u-boot. TEXT_BASE has +to match the address where u-boot is located when you +actually launch. Ethernet only supported for mac0. -Pcmcia only supported for slot 0, only 3.3V. +PCMCIA only supported for slot 0, only 3.3V. -Pcmcia IDE tested with Sandisk Compact Flash and +PCMCIA IDE tested with Sandisk Compact Flash and IBM microdrive. ################################### @@ -32,7 +42,7 @@ IBM microdrive. ################################### If you partition a disk on another system (e.g. laptop), all bytes will be swapped on 16bit level when using -PCMCIA!!!! +PCMCIA and running cpu in big endian mode!!!! This is probably due to an error in Au1000 chip. diff --git a/board/nc650/nc650.c b/board/nc650/nc650.c index 376dbbd..c2f0c79 100644 --- a/board/nc650/nc650.c +++ b/board/nc650/nc650.c @@ -205,3 +205,13 @@ static long int dram_size (long int mamr_value, long int *base, return (get_ram_size(base, maxsize)); } + +#if (CONFIG_COMMANDS & CFG_CMD_NAND) +void nand_init(void) +{ + unsigned long totlen = nand_probe(CFG_NAND_BASE); + + printf ("%4lu MB\n", totlen >> 20); +} +#endif + diff --git a/include/configs/NC650.h b/include/configs/NC650.h index 48bea69..8f52014 100644 --- a/include/configs/NC650.h +++ b/include/configs/NC650.h @@ -96,8 +96,8 @@ /* * Software (bit-bang) I2C driver configuration */ -#define SCL 0x10000000 /* PA 3 */ -#define SDA 0x40000000 /* PA 1 */ +#define SCL 0x1000 /* PA 3 */ +#define SDA 0x2000 /* PA 2 */ #define PAR immr->im_ioport.iop_papar #define DIR immr->im_ioport.iop_padir @@ -111,19 +111,16 @@ else DAT &= ~SDA #define I2C_SCL(bit) if (bit) DAT |= SCL; \ else DAT &= ~SCL -#define I2C_DELAY udelay(50) /* 1/4 I2C clock duration */ +#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */ -#define CFG_I2C_EEPROM_ADDR 0x50 -#define CFG_I2C_EEPROM_ADDR_LEN 1 -#define CFG_EEPROM_PAGE_WRITE_BITS 4 /* 16 bytes page write mode */ - -#define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */ +#define CONFIG_RTC_PCF8563 +#define CFG_I2C_RTC_ADDR 0x51 #define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \ CFG_CMD_ASKENV | \ CFG_CMD_DHCP | \ - CFG_CMD_EEPROM | \ CFG_CMD_I2C | \ + CFG_CMD_NAND | \ CFG_CMD_DATE ) /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ @@ -216,6 +213,31 @@ #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */ #endif +/* + * NAND flash support + */ +#define CFG_MAX_NAND_DEVICE 1 +#define NAND_ChipID_UNKNOWN 0x00 +#define SECTORSIZE 512 +#define NAND_MAX_FLOORS 1 +#define NAND_MAX_CHIPS 1 +#define ADDR_PAGE 2 +#define ADDR_COLUMN_PAGE 3 +#define ADDR_COLUMN 1 +#define NAND_NO_RB + +#define NAND_WAIT_READY(nand) udelay(12) +#define WRITE_NAND_COMMAND(d, adr) WRITE_NAND(d, adr + 2) +#define WRITE_NAND_ADDRESS(d, adr) WRITE_NAND(d, adr + 1) +#define WRITE_NAND(d, adr) (*(volatile uint8_t *)(adr) = (uint8_t)(d)) +#define READ_NAND(adr) (*(volatile uint8_t *)(adr)) +#define NAND_DISABLE_CE(nand) /* nop */ +#define NAND_ENABLE_CE(nand) /* nop */ +#define NAND_CTL_CLRALE(nandptr) /* nop */ +#define NAND_CTL_SETALE(nandptr) /* nop */ +#define NAND_CTL_CLRCLE(nandptr) /* nop */ +#define NAND_CTL_SETCLE(nandptr) /* nop */ + /*----------------------------------------------------------------------- * SYPCR - System Protection Control 11-9 * SYPCR can only be written once after reset! @@ -287,6 +309,18 @@ #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_8 | BR_V) /* + * BR2 and OR2 (NAND Flash) + */ +#define CFG_NAND_BASE 0x50000000 +#define CFG_NAND_SIZE 0x04000000 + +#define CFG_OR_TIMING_NAND (OR_CSNT_SAM | OR_ACS_DIV1 | OR_BI | \ + OR_SCY_15_CLK | OR_EHTR | OR_TRLX) + +#define CFG_BR2_PRELIM ((CFG_NAND_BASE & BR_BA_MSK) | BR_PS_8 | BR_V ) +#define CFG_OR2_PRELIM (((-CFG_NAND_SIZE) & OR_AM_MSK) | CFG_OR_TIMING_NAND) + +/* * BR3 and OR3 (SDRAM) */ #define SDRAM_BASE3_PRELIM 0x00000000 /* SDRAM bank */ |