The criteria of the AMCC SDRAM Controller DDR autocalibration
U-Boot code is to pick the largest passing write/read/compare
window that also has the smallest SDRAM_RDCC.[RDSS] Read Sample
Cycle Select value.
On some Kilauea boards the DDR autocalibration algorithm can
find a large passing write/read/compare window with a small
SDRAM_RDCC.[RDSS] aggressive value of Read Sample Cycle Select
value "T1 Sample".
This SDRAM_RDCC.[RDSS] Read Sample Cycle Select value of
"T1 Sample" proves to be to aggressive when later on U-Boot
relocates into DDR memory and executes.
The memory traces on the Kilauea board are short so on some
Kilauea boards the SDRAM_RDCC.[RDSS] Read Sample Cycle Select
value of "T1 Sample" shows up as a potentially valid value for
the DDR autocalibratiion algorithm.
The fix is to define a weak default function which provides
the minimum SDRAM_RDCC.[RDSS] Read Sample Cycle Select value
to accept for DDR autocalibration. The default will be the
"T2 Sample" value. A board developer who has a well defined
board and chooses to be more aggressive can always provide
their own board specific string function with the more
aggressive "T1 Sample" value or stick with the default
minimum SDRAM_RDCC.[RDSS] value of "T2".
Also put in a autocalibration loop fix for case where current
write/read/compare passing window size is the same as a prior
window size, then in this case choose the write/read/compare
result that has the associated smallest RDCC T-Sample value.
Signed-off-by: Adam Graham <agraham@amcc.com>
Signed-off-by: Stefan Roese <sr@denx.de>
CONFIG_SDRAM_PPC4xx_IBM_DDR2 is not set when include/asm-ppc/config.h is
included. So for katmai, CONFIG_MAX_MEM_MAPPED will get set to 256MB.
It makes perfect sense to set CONFIG_MAX_MEM_MAPPED to 2GB for all PPC4xx
boards right now.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch adds the configuration option CONFIG_SYS_SMC_RXBUFLEN.
With this option it is possible to allow the receive
buffer for the SMC on 8xx to be greater then 1. In case
CONFIG_SYS_SMC_RXBUFLEN == 1 this driver works as the
old version.
When defining CONFIG_SYS_SMC_RXBUFLEN also
CONFIG_SYS_MAXIDLE must be defined to setup the maximum
idle timeout for the SMC.
Signed-off-by: Heiko Schocher <hs@denx.de>
Move global '#ifdef CONFIG_xxx .... #endif' out of the .c files and into
the COBJS-$(CONFIG_xxx) in the Makefile. Also delete unused var in kgdb
code in the process.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
At some point an intentional double space at the end of the sentence
got changed into a tab in the GPL header line:
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
This patch fixes the damage.
Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
If on your board is more than one flash, you must know
the size of every single flash, for example, for updating
the DTS before booting Linux. So make this function
flash_get_info() extern, and you can have all info
about your flashes.
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
Added new CONFIG options for the three type of MAC-PHY interconnect and
applied them all relevant board config files
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
SOFT_RESET must be asserted for at least 3 TX clocks. Usually, that's about 30
clock cycles, so it's been mostly working. But we had no guarantee, and at
slower bitrates, it's just over a microsecond (over 1000 clock cycles). This
enforces a 2 microsecond gap between assertion and deassertion.
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
100Mbs ethernet does not work on sh7763 chips due to the wrong value being
used in the GECMR register. Following diff fixes the problem
Signed-off-by: Simon Munton <simon@nidoran.m5data.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
This fixes MPC8260 compilation with ethernet on SCC. Probably was a
typo or something...
Signed-off-by: Sergey Kubushyn <ksi@koi8.net>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
This patch adds the configuration option CONFIG_SYS_SMC_RXBUFLEN.
With this option it is possible to allow the receive
buffer for the SMC on 82xx to be greater then 1. In case
CONFIG_SYS_SMC_RXBUFLEN == 1 this driver works as the
old version.
When defining CONFIG_SYS_SMC_RXBUFLEN also
CONFIG_SYS_MAXIDLE must be defined to setup the maximum
idle timeout for the SMC.
Signed-off-by: Heiko Schocher <hs@denx.de>
If we call flush_cache(0xfffff000, 0x1000) it would never
terminate the loop since end = 0xffffffff and we'd roll over
our counter from 0xfffffe0 to 0 (assuming a 32-byte cache line)
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Moved CONFIG_MAX_MEM_MAPPED to the asm/config.h so its kept consistent
between the two current users (lib_ppc/board.c, 44x SPD DDR2).
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Stefan Roese <sr@denx.de>
We have common defines that we duplicate in various ways. Having an
arch specific config.h gives us a common location for those defines.
Eventually we should be able to replace this when we have proper
Kconfig support.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Now that the rest of u-boot can support it, change the PCI bus
address of the PCI MEM regions from 0x80000000 to 0xc0000000,
and use the same bus address for both PCI1 and PCI2. This will
maximize the amount of PCI address space left over to map RAM
on systems with large amounts of memory.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
The code assumes that the pci bus address and the virtual
address used to access a region are the same, but they might
not be. Fix this assumption.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Clean up PCI mapping concepts in the 8641 config - rename _BASE
to _BUS, as it's actually a PCI bus address, separate virtual
and physical addresses into _VIRT and _PHYS, and use each
appopriately.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
The BAT fields are architected; there's no need for these to be in
cpu-specific files. Drop the duplication and move these to
include/asm-ppc/mmu.h. Also, remove the BL_xxx defines that were only
used by the alaska board, and switch to using the BATU_BL_xxx defines
used by all the other boards. The BL_ defines previously in use
had to be shifted into the proper position for use, which was inefficient.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
It is no longer always true that the pci bus address can be
used as the virtual address for pci accesses. pci_map_bar()
is created to return the virtual address for a pci region.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Because the inbound pci windows are mapped generously, set up
the more specific outbound windows first. This way, when we
search the pci regions for something, we will hit on the more
specific region. This can actually be a problem on systems
with large amounts of RAM.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
If the VA and PA of the flash aren't the same, the banks list
should be initialized to hold the physical address. Correct this.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
When we search for an address match in pci_hose_{phys_to_bus,bus_to_phys}
we should give preference to memory regions that aren't system memory.
Its possible that we have over mapped system memory in the regions and
we want to avoid depending on the order of the regions.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
The PCI_REGION_MEMORY and PCI_REGION_MEM are a bit to similar and
can be confusing when reading the code.
Rename PCI_REGION_MEMORY to PCI_REGION_SYS_MEMORY to clarify its used
for system memory mapping purposes.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Without the timeout present an infinite loop can occur if the
NAND device is broken or not present.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Commit cfa460adfd removed support
for disabling the "No NAND device found!!!" warning when
CONFIG_SYS_NAND_QUIET_TEST was defined. This re-adds support
for silencing the warning.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Dear Wolfgang,
You are right, the patch was ugly.
The new one seems to be better.
Signed-off-by: Valeriy Glushkov <gvv@lstec.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This fixes a bug that tmp environment memory not being released.
Signed-off-by: Derek Ou <dou@siconix.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Modified mii_init to support boards with PHYs that are not set to
autonegotiate, but still want to use u-boot's mii commands to probe
the smi bus. Such PHYs will not set the Autonegotiate-done bit.
Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
Applied the patch for baudrate divider value truncation for
serial_init to serial_setbrg as well.
Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
Cleanup for M5271EVB:
Added clarification on the use of CONFIG_SYS_CLOCK.
Modified to use u-boot's HUSH parser.
Cleanup on environment settings.
Removed compiler warning by defining CONFIG_SYS_CS0_*
Dependencies:
Added the use of CONFIG_SYS_MCF_SYNCR for clock multiplier.
This depends on a patch to include/asm-m68k/m5271.h
that defines the multiplier and divider ratios.
Removed the definition of CONFIG_SYS_FECI2C.
This depends on a patch that removes the use of it in
cpu/mcf52x2/cpu_init.c
Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
M5271 dynamic clock multiplier. It is currently fixed at 100MHz.
Allow the board header file to set their own multiplier and divider.
Added the #define for the multiplier and divider to the cpu header file.
Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
Discontinue the use of CONFIG_SYS_FECI2C (only used by M5271EVB).
Use read-modify-write to activate the FEC pins without disabling I2C.
Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
CONFIG_M68K bdinfo cleanup:
Fixed compiler warning about baudrate printing.
format '%d' expects type 'int', but argument 2 has type 'long unsigned int'.
Added printing of "cpufreq"
Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
Adam Graham
Stefan Roese
Wolfgang Denk
Peter Tyser
Heiko Schocher
Mike Frysinger
Jerry Van Baren
Ben Warren
Andy Fleming
Simon Munton
ksi@koi8.net
Kumar Gala
Becky Bruce
Valeriy Glushkov
derek@siconix.com
Richard Retanubun