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2010-04-22mpc83xx: turn on icache in core initialization to improve u-boot boot timeKim Phillips
before, MPC8349ITX boots u-boot in 4.3sec: column1 is elapsed time since first message column2 is elapsed time since previous message column3 is the message 0.000 0.000: U-Boot 2010.03-00126-gfd4e49c (Apr 11 2010 - 17:25:29) MPC83XX 0.000 0.000: 0.000 0.000: Reset Status: 0.000 0.000: 0.032 0.032: CPU: e300c1, MPC8349E, Rev: 1.1 at 533.333 MHz, CSB: 266.667 MHz 0.032 0.000: Board: Freescale MPC8349E-mITX 0.032 0.000: UPMA: Configured for compact flash 0.032 0.000: I2C: ready 0.061 0.028: DRAM: 256 MB (DDR1, 64-bit, ECC off, 266.667 MHz) 1.516 1.456: FLASH: 16 MB 2.641 1.125: PCI: Bus Dev VenId DevId Class Int 2.652 0.011: 00 10 1095 3114 0180 00 2.652 0.000: PCI: Bus Dev VenId DevId Class Int 2.652 0.000: In: serial 2.652 0.000: Out: serial 2.652 0.000: Err: serial 2.682 0.030: Board revision: 1.0 (PCF8475A) 3.080 0.398: Net: TSEC1: No support for PHY id ffffffff; assuming generic 3.080 0.000: TSEC0, TSEC1 4.300 1.219: IDE: Bus 0: .** Timeout ** after, MPC8349ITX boots u-boot in 3.0sec: 0.010 0.010: U-Boot 2010.03-00127-g4b468cc-dirty (Apr 11 2010 - 17:47:29) MPC83XX 0.010 0.000: 0.010 0.000: Reset Status: 0.010 0.000: 0.017 0.007: CPU: e300c1, MPC8349E, Rev: 1.1 at 533.333 MHz, CSB: 266.667 MHz 0.017 0.000: Board: Freescale MPC8349E-mITX 0.038 0.020: UPMA: Configured for compact flash 0.038 0.000: I2C: ready 0.038 0.000: DRAM: 256 MB (DDR1, 64-bit, ECC off, 266.667 MHz) 0.260 0.222: FLASH: 16 MB 1.390 1.130: PCI: Bus Dev VenId DevId Class Int 1.390 0.000: 00 10 1095 3114 0180 00 1.390 0.000: PCI: Bus Dev VenId DevId Class Int 1.400 0.010: In: serial 1.400 0.000: Out: serial 1.400 0.000: Err: serial 1.400 0.000: Board revision: 1.0 (PCF8475A) 1.832 0.432: Net: TSEC1: No support for PHY id ffffffff; assuming generic 1.832 0.000: TSEC0, TSEC1 3.038 1.205: IDE: Bus 0: .** Timeout ** also tested on these boards (albeit with a less accurate boottime measurement method): seconds: before after 8349MDS ~2.6 ~2.2 8360MDS ~2.8 ~2.6 8313RDB ~2.5 ~2.3 #nand boot 837xRDB ~3.1 ~2.3 also tested on an 8323ERDB. v2: also remove the delayed icache enablement assumption in arch ppc's board.c, and add a CONFIG_MPC83xx define in the ITX config file for consistency (even though it was already being defined in 83xx' config.mk). Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2010-04-21Move arch/ppc to arch/powerpcStefan Roese
As discussed on the list, move "arch/ppc" to "arch/powerpc" to better match the Linux directory structure. Please note that this patch also changes the "ppc" target in MAKEALL to "powerpc" to match this new infrastructure. But "ppc" is kept as an alias for now, to not break compatibility with scripts using this name. Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Wolfgang Denk <wd@denx.de> Acked-by: Detlev Zundel <dzu@denx.de> Acked-by: Kim Phillips <kim.phillips@freescale.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Anatolij Gustschin <agust@denx.de>