Commit Graph

105 Commits

Author SHA1 Message Date
Michael Weiss
59dde44acb powerpc/bootcount: Fix endianness problem
For CONFIG_SYS_BOOTCOUNT_SINGLEWORD the code had an endianness problem.

Signed-off-by: Michael Weiss <michael.weiss@ifm.com>
Signed-off-by: Detlev Zundel <dzu@denx.de>
2010-05-26 22:26:32 +02:00
Stefan Roese
e4a95d112e powerpc: Consolidate bootcount_{store|load} for PowerPC
This patch consolidates bootcount_{store|load} for PowerPC by
implementing a common version in arch/powerpc/lib/bootcount.c. This
code is now used by all PowerPC variants that currently have these
functions implemented.

The functions now use the proper IO-accessor functions to read/write the
values.

This code also supports two different bootcount versions:

a) Use 2 separate words (2 * 32bit) to store the bootcounter
b) Use only 1 word (2 * 16bit) to store the bootcounter

Version b) was already used by MPC5xxx.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
          for 83xx parts
Cc: Michael Zaidman <michael.zaidman@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Anatolij Gustschin <agust@denx.de>
2010-05-06 23:28:48 +02:00
Norbert van Bolhuis
3882d7a5a5 ppc: unused memory region too close to current stack pointer
This avoids a possible overwrite of the (end of) ramdisk by u-boot.
The unused memory region for ppc boot currently starts 1k below the
do_bootm->bootm_start->arch_lmb_reserve stack ptr. This isn't enough since
do_bootm->do_bootm_linux->boot_relocate_fdt calls printf which may
very well use more than 1k stack space.

Signed-off-by: Norbert van Bolhuis <nvbolhuis@aimvalley.nl>
2010-05-05 23:55:02 +02:00
Kim Phillips
1a2e203b31 mpc83xx: turn on icache in core initialization to improve u-boot boot time
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>
2010-04-22 18:44:56 -05:00
Stefan Roese
a47a12becf Move arch/ppc to arch/powerpc
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>
2010-04-21 23:42:38 +02:00