u-boot.git/cpu/mpc83xx, branch v2009.11

mpc83xx: boot time regression, move LCRR setup back to cpu_init_f

2009-12-09T17:40:52+00:00

Commit c7190f02 (retain POR values of non-configured ACR, SPCR, SCCR,
and LCRR bitfields) moved the LCRR assignment to after relocation
to RAM because of the potential problem with changing the local bus
clock while executing from flash.

This change unfortunately adversely affects the boot time, as running
all code up to cpu_init_r can cause significant slowdown.

E.G. on a 8347 board a bootup time increase of ~600ms has been observed:

   0.020 CPU:   e300c1, MPC8347_PBGA_EA, Rev: 3.0 at 400 MHz, CSB: 266.667 MHz
   0.168 RS:    232
   0.172 I2C:   ready
   0.176 DRAM:  64 MB
   1.236 FLASH: 32 MB

Versus:

   0.016 CPU:   e300c1, MPC8347_PBGA_EA, Rev: 3.0 at 400 MHz, CSB: 266.667 MHz
   0.092 RS:    232
   0.092 I2C:   ready
   0.096 DRAM:  64 MB
   0.644 FLASH: 32 MB

So far no boards have needed the late LCRR setup, so simply revert it
for now - If it is needed at a later time, those boards can either do
their own final LCRR setup in board code (E.G. in board_early_init_r),
or we can introduce a CONFIG_SYS_LCRR_LATE config option to only do
the setup in cpu_init_r.

Signed-off-by: Peter Korsgaard 
Signed-off-by: Kim Phillips

mpc83xx: mpc8313 - handle erratum IPIC1 (TSEC IRQ number swappage)

2009-10-16T22:08:35+00:00

mpc8313e erratum IPIC1 swapped TSEC interrupt ID numbers on rev. 1
h/w (see AN3545).  The base device tree in use has rev. 1 ID numbers,
so if on Rev. 2 (and higher) h/w, we fix them up here.

Signed-off-by: Kim Phillips 
Reviewed-by: Roland Lezuo

relocation: Do not relocate NULL pointers.

2009-10-08T07:33:36+00:00

NULL is an absolute value and should not be relocated.
After this correction code like:
 void weak_fun(void) __attribute__((weak));
 printf("weak_fun:%p\n", weak_fun);
will still print null after relocation.

Signed-off-by: Joakim Tjernlund

ppc: Enable full relocation to RAM

2009-10-03T08:15:45+00:00

The following changes allow U-Boot to fully relocate from flash to
RAM:
 - Remove linker scripts' .fixup sections from the .text section
 - Add -mrelocatable to PLATFORM_RELFLAGS for all boards
 - Define CONFIG_RELOC_FIXUP_WORKS for all boards

Previously, U-Boot would partially relocate, but statically initialized
pointers needed to be manually relocated.

Signed-off-by: Peter Tyser

mpc83xx: retain POR values of non-configured ACR, SPCR, SCCR, and LCRR bitfields

2009-09-27T02:19:38+00:00

some LCRR bits are not documented throughout the 83xx family RMs.
New board porters copying similar board configurations might omit
setting e.g., DBYP since it was not documented in their SoC's RM.

Prevent them bricking their board by retaining power on reset values
in bit fields that the board porter doesn't explicitly configure
via CONFIG_SYS__ assignments in the board
config file.

also move LCRR assignment to cpu_init_r[am] to help ensure no
transactions are being executed via the local bus while CLKDIV is being
modified.

also start to use i/o accessors.

Signed-off-by: Kim Phillips

mpc83xx/serdes: License cleanup: remove "All Rights Reserved" notice

2009-09-04T21:02:04+00:00

"All Rights Reserved" conflicts with the GPL.

Signed-off-by: Anton Vorontsov

Update Freescale copyrights to remove "All Rights Reserved"

2009-07-29T07:59:22+00:00

"All Rights Reserved" conflicts with the GPL.

Signed-off-by: Kumar Gala

mpc83xx: CONFIG_83XX_GENERIC_PCI is now synonymous with CONFIG_PCI; remove the former

2009-07-27T15:17:54+00:00

Signed-off-by: Kim Phillips

usb: mpc834x: added support of the MPH USB controller in addition to the DR one

2009-07-14T19:53:52+00:00

Signed-off-by: Valeriy Glushkov 
Signed-off-by: Kim Phillips

mpc83xx: USB: fix: access of ehci struct elements

2009-07-09T19:33:15+00:00

It fixes the access to the 'ehci' struct elements for mpc83xx which
should have been taken care of in 4ef01010aa4799c759d75e67007fdd3a38c88c8a
Sorry about that.

Signed-off-by: Vivek Mahajan 
Signed-off-by: Remy Bohmer