Commit Graph

8 Commits

Author SHA1 Message Date
Gabor Juhos
10473d0490 malta: use unmapped flash base address
The physical base address of the NOR flash is 0x1e000000
on the Malta boards. The hardware also maps the first 4MiB
of the flash into the 0x1fc00000-0x1fffffff range.

Currently, U-Boot uses the mapped address to access the
flash, which does not work in recent qemu versions.

Since commit a427338b222b43197c2776cbc996936df0302f51
(mips_malta: correct reading MIPS revision at 0x1fc00010)
writing to the mapped address space causes a CPU exception.
Due to the exception, U-Boot hangs during boot when it tries
to detect the CFI flash chip.

Use the correct physical address for the MALTA_FLASH_BASE
constant to fix the problem. In order to avoid relocation
problems, also update the CONFIG_SYS_{TEXT,MONITOR}_BASE
constants.

The change makes it possible to start U-Boot on a Malta
board emulated with Qemu 1.6.1 and 1.7.0-rc0. It also
works on older versions (tested with 1.1.1, 1.2.2, 1.4.2,
1.5.3).

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Paul Burton <paul.burton@imgtec.com>
2013-11-15 11:16:59 +01:00
Gabor Juhos
ab41305d3b malta: define CONFIG_MEMSIZE_IN_BYTES
The memsize environment variable must contain the
memory size in bytes on the Malta board. Otherwise
Linux will use wrong memory size which causes a kernel
panic.

Define CONFIG_MEMSIZE_IN_BYTES in malta.h to avoid
that.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Paul Burton <paul.burton@imgtec.com>
2013-11-09 17:21:02 +01:00
Paul Burton
fba6f45cdc malta: store environment in flash
Allow the environment to be stored in the monitor flash of a Malta
board. The environment is stored in the final 128KB of the flash, which
both leaves the majority of the flash available for U-boot code and also
matches the location which YAMON uses.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
2013-11-09 17:21:02 +01:00
Paul Burton
3ced12a06b malta: enable RTC support
This is actually required in order for a Linux kernel to boot
successfully on a physical Malta board. Without enabling the RTC, a
Malta Linux kernel will get stuck in its estimate_frequencies function
on boot.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
2013-11-09 17:21:02 +01:00
Paul Burton
14b4e1a63e malta: remove cache size definitions
These will now be detected at runtime, allowing a single U-boot
configuration to function correctly with different bitstreams. Without
this you may need to re-configure, re-build and re-flash U-boot to your
Malta if you flash a new bitstream with a different cache configuration
to your old bitstream.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
2013-11-09 17:21:02 +01:00
Paul Burton
e0878af8cd malta: enable CONFIG_PCNET_79C973, PCNET_HAS_PROM, CONFIG_CMD_DHCP
This model of the pcnet is used in current Malta boards, at least in the
Malta-R rev 3. Enable support for it.

The Malta also has the ethernet controller PROM containing its MAC
address, so enable support for that in order to read that MAC address.

DHCP is a very useful feature to have available for many networks,
enable support for it also.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
2013-11-09 17:21:01 +01:00
Paul Burton
baf37f06c5 malta: support for coreFPGA6 boards
This patch adds support for running on Malta boards using coreFPGA6
core cards, including support for the msc01 system controller used
with them. The system controller is detected at runtime allowing one
U-boot binary to run on a Malta with either.

Due to the PCI I/O base differing between Maltas using gt64120 & msc01
system controllers, the UART setup is modified slightly. A second UART
is added so that there is one pointing at the correct address for each
system controller. The Malta board then defines its own
default_serial_console function to select the correct one at runtime.
The incorrect UART will simply not function.

Tested on:
  - A coreFPGA6 Malta running interAptiv and proAptiv bitstreams, both
    with and without an L2 cache.
  - QEMU.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
2013-11-09 17:21:01 +01:00
Paul Burton
7a9d109b00 qemu-malta: rename to just "malta"
This is in preparation for adapting this board to function correctly on
a physical MIPS Malta board. The board is moved into an "imgtec" vendor
directory at the same time in order to ready us for any other boards
supported by Imagination in the future.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
2013-11-09 17:21:01 +01:00