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ppc4xx: Update AMCC Bamboo README doc/README.bamboo

As suggested by Eugene O'Brien <Eugene.O'Brien@advantechamt.com>,
here an updated Bamboo README.

Signed-off-by: Stefan Roese <sr@denx.de>
Stefan Roese há 17 anos atrás
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      doc/README.bamboo

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+The 2 important dipswitches are configured as shown below:
+
+SW1 (for 33MHz SysClk)
+----------------------
+S1   S2   S3   S4   S5   S6   S7   S8
+OFF  OFF  OFF  OFF  OFF  OFF  OFF  ON
+
+SW7 (for Op-Code Flash and Boot Option H)
+-----------------------------------------
+S1   S2   S3   S4   S5   S6   S7   S8
+OFF  OFF  OFF  ON   OFF  OFF  OFF  OFF
+
+The EEPROM at location 0x52 is loaded with these 16 bytes:
+C47042A6 05D7A190 40082350 0d050000
+
+SDR0_SDSTP0[ENG]:	1		: PLL's VCO is the source for PLL forward divisors
+SDR0_SDSTP0[SRC]:	1		: Feedback originates from PLLOUTB
+SDR0_SDSTP0[SEL]:	0		: Feedback selection is PLL output
+SDR0_SDSTP0[TUNE]:	1000111000	: 10 <= M <= 22, 600MHz < VCO <= 900MHz
+SDR0_SDSTP0[FBDV]:	4		: PLL feedback divisor
+SDR0_SDSTP0[FBDVA]:	2		: PLL forward divisor A
+SDR0_SDSTP0[FBDVB]:	5		: PLL forward divisor B
+SDR0_SDSTP0[PRBDV0]:	1		: PLL primary divisor B
+SDR0_SDSTP0[OPBDV0]:	2		: OPB clock divisor
+SDR0_SDSTP0[LFBDV]:	1		: PLL local feedback divisor
+SDR0_SDSTP0[PERDV0]:	3		: Peripheral clock divisor 0
+SDR0_SDSTP0[MALDV0]:	2		: MAL clock divisor 0
+SDR0_SDSTP0[PCIDV0]:	2		: Sync PCI clock divisor 0
+SDR0_SDSTP0[PLLTIMER]:	7		: PLL locking timer
+SDR0_SDSTP0[RW]:	1		: EBC ROM width: 16-bit
+SDR0_SDSTP0[RL]:	0		: EBC ROM location: EBC
+SDR0_SDSTP0[PAE]:	0		: PCI internal arbiter: disabled
+SDR0_SDSTP0[PHCE]:	0		: PCI host configuration: disabled
+SDR0_SDSTP0[ZM]:	3		: ZMII mode: RMII mode 100
+SDR0_SDSTP0[CTE]:	0		: CPU trace: disabled
+SDR0_SDSTP0[Nto1]:	0		: CPU/PLB ratio N/P: not N to 1
+SDR0_SDSTP0[PAME]:	1		: PCI asynchronous mode: enabled
+SDR0_SDSTP0[MEM]:	1		: Multiplex: EMAC
+SDR0_SDSTP0[NE]:	0		: NDFC: disabled
+SDR0_SDSTP0[NBW]:	0		: NDFC boot width: 8-bit
+SDR0_SDSTP0[NBW]:	0		: NDFC boot page selection
+SDR0_SDSTP0[NBAC]:	0		: NDFC boot address selection cycle: 3 Addr. Cycles, 1 Col. + 2 Row (512 page size)
+SDR0_SDSTP0[NARE]:	0		: NDFC auto read : disabled
+SDR0_SDSTP0[NRB]:	0		: NDFC Ready/Busy : Ready
+SDR0_SDSTP0[NDRSC]:	33333		: NDFC device reset counter
+SDR0_SDSTP0[NCG0]:	0		: NDFC/EBC chip select gating CS0 : EBC
+SDR0_SDSTP0[NCG1]:	0		: NDFC/EBC chip select gating CS1 : EBC
+SDR0_SDSTP0[NCG2]:	0		: NDFC/EBC chip select gating CS2 : EBC
+SDR0_SDSTP0[NCG3]:	0		: NDFC/EBC chip select gating CS3 : EBC
+SDR0_SDSTP0[NCRDC]:	3333		: NDFC device read count
+
+PPC440EP Clocking Configuration
+
+SysClk is 33.0MHz, M is 20, VCO is 660.0MHz, CPU is 330.0MHz, PLB is 132.0MHz
+OPB is 66.0MHz, EBC is 44.0MHz, MAL is 66.0MHz, Sync PCI is 66.0MHz
+
+The above information is reported by Eugene O'Brien
+<Eugene.O'Brien@advantechamt.com>. Thanks a lot.
+
+2007-08-06, Stefan Roese <sr@denx.de>
+---------------------------------------------------------------------
+
 The configuration for the AMCC 440EP eval board "Bamboo" was changed
 The configuration for the AMCC 440EP eval board "Bamboo" was changed
 to only use 384 kbytes of FLASH for the U-Boot image. This way the
 to only use 384 kbytes of FLASH for the U-Boot image. This way the
 redundant environment can be saved in the remaining 2 sectors of the
 redundant environment can be saved in the remaining 2 sectors of the