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2008-04-25[Blackfin] arch: BF54x memsizes are in mbits, not mbytesMike Frysinger
Pointed-out-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25[Blackfin] arch: try to remove condition that causes double fault, by ↵Robin Getz
checking current before it gets dereferenced Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25[Blackfin] arch: Update anomaly list.Sonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: Clean up the definition and correct the commentary for ↵Robert P. J. Day
current_thread_info(). Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Acked-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: define our own BUG() so we can dump the blackfin hardware ↵Mike Frysinger
trace buffer Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: Add platform support for MTD DATAFLASHMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25[Blackfin] arch: reorganize some of the board-customization options so that ↵Mike Frysinger
similar things are together and only available as needed Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: Allow concurrent use of GPIO and GPIO IRQMichael Hennerich
The irq setup code no longer calls gpio request and free. This patch also changes the default gpio_free behavior on Blackfin. A freed GPIO keeps it's last state, and is not defaulted back to an input. This is also what all other architectures do. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25[Blackfin] arch: detect the memory available in the system on the fly by defaultMike Frysinger
detect the memory available in the system on the fly by default rather than forcing people to set this manually in the kconfig Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: Prevent potential Core Hang situationMichael Hennerich
If the new value written to the PLL_CTL or VR_CTL register is the same as the previous value, the PLL wake-up will occur immediately (PLL is already locked), but the core and system clock will be bypassed for the PLL_LOCKCNT duration. For this interval, code will execute at the CLKIN rate instead of at the expected CCLK rate. Software should guard against this condition by comparing the current value to the new value before writing the new value. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: add implicit icplb for the bootrom so we can use the ↵Mike Frysinger
utility functions in the kernel Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: Adjust the u-boot and kernel image partition size in mtd ↵Grace Pan
device. Signed-off-by: Grace Pan <grace.pan@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: use the same style for missing L1 sectionsMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: now that we can panic() early, dont need the delayed L1 ↵Mike Frysinger
overflow check Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: fix bug - Section data_l1_cacheline_aligned should be ↵Sonic Zhang
defined in link script of kernel http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3978 Section data_l1_cacheline_aligned should be defined in link script of kernel, when L1 data sram bank A is not available. In bf536 with all data cache is enabled, there is no L1 data sram. Current link script won't define section data_l1.cacheline_aligned in this case. But, if user select put cacheline_aligned data into l1 sram in kernel menuconfig, these data will be dropped and access to these data will trigger data CPLB exception. Do panic in l1 relocation code as well. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: Add a little bit more runtime info for MPURobin Getz
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: make the mask explicit rather than writing a negative ↵Mike Frysinger
number in hex Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: cplb-mpu code clean upMike Frysinger
- allow bootrom to be readable from supervisor mode - delete unused local variable "addr" - punt unused local defines of cplbinfo.c Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: Give the DMA base registers a more descriptive nameBernd Schmidt
The DMA base registers are available in a global named "base_addr" for every Blackfin variant. Give this a more descriptive name, and remove duplicate tables from some drivers. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: Consistently export base_addr for all Blackfin variants.Bernd Schmidt
Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: Allow AD1836A board to be connected, either to SPORT2 or ↵Bernd Schmidt
SPORT3. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: actually implement get_cycles functionMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: add boot messages to quickly distinguish between MPU/NOMPU ↵Mike Frysinger
settings Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: theres no need to declare ram{end,start,base} in the head.S ↵Mike Frysinger
files theres no need to declare ram{end,start,base} in the head.S files when declaring them with the other memory related variables in setup.c is so much simpler/nicer Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: remove duplicated prototypes for internal cplb structures ↵Mike Frysinger
from the global blackfin header remove duplicated prototypes for internal cplb structures from the global blackfin header as nothing else should be accessing these Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: declare list of peripherals as const since we dont modify ↵Mike Frysinger
the incoming array Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: merge ip0x-specific board changesMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: USB header files are now located under linux/usb/.Peter Korsgaard
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: Resolve the clash issue of UART defines between blackfin ↵Graf Yang
headers and include/linux/serial_reg. Signed-off-by: Graf Yang <graf.yang@analog.com> Cc: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: Apply Bluetechnix vendor patchMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: This allows XIP to work with FD-PIC.Bernd Schmidt
Previously, init failed to do anything meaningful; it turns out that the reason is that FD-PIC has a readonly data section which can be located in the XIP filesystem, and various address checks in the kernel reject such addresses for syscall arguments. Hence, init's execve ("/bin/sh", ...) failed with error code EFAULT. There's room for improvement here: in case people want to have filesystems on flash rather than in main memory, _access_ok should be modified to allow this. This bug fix is also dedicated to Michael Hennerich. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: support the reserved memory region in the MPU codeBernd Schmidt
Pointed-out-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: fix bug - a crash on bootup with CONFIG_MPU on the BF548Bernd Schmidt
The function flush_switched_dcplbs was clearing the CPLB entries covering the process permission bitmasks. This means that the sequence flush_switched_dcplbs (); set_mask_dcplbs(mm->context.page_rwx_mask); has a problem: if kernel code (such as an interrupt) causes a CPLB miss before set_mask_dcplbs completes, the CPLB handler function causes a double fault, with an instantaneous reboot. This bug fix is dedicated to Michael Hennerich, the only person in the world capable of providing working JTAG hardware. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: a rather old performance improvement for the signal ↵Bernd Schmidt
handling code This is a rather old performance improvement for the signal handling code, which was originally only committed on the 2007R1 branch as a workaround for what we suspected to be a hardware bug. There's no point in constructing a sigreturn stub on the stack and flushing caches; we can just make signal handlers return to a known location in the fixed code area. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: finish removing remnants of old BF537_PORT_H option of ↵Mike Frysinger
Blackfin EMAC driver Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Acked-by: Jeff Garzik <jeff@garzik.org>
2008-04-23[Blackfin] arch: LARGE_ALLOCS was dropped along the way ... bring Blackfin ↵Mike Frysinger
in line Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23[Blackfin] arch: we no longer use BFIN_{SINGLE,DUAL}_CORE in our sourceMike Frysinger
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24[Blackfin] arch: boards and machines defconfig updatesBryan Wu
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23[Blackfin] arch: __FUNCTION__ is gcc-specific, use __func__Harvey Harrison
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23[Blackfin] arch: remove unused/incorrect definitionMeihui Fan
Signed-off-by: Meihui Fan <mhfan@hhcn.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23[Blackfin] arch: fix bug - make sure we check the right L1 lengthMeihui Fan
Signed-off-by: Meihui Fan <mhfan@hhcn.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23[Blackfin] arch: add support for the rest of the gptimers on the BF54xMeihui Fan
Signed-off-by: Meihui Fan <mhfan@hhcn.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23[Blackfin] arch: fix obvious bfin_write typosMeihui Fan
Signed-off-by: Meihui Fan <mhfan@hhcn.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25[Blackfin] arch: Fix bug - Properly calculate DDR clock.Sonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23[Blackfin] arch: fix some obvious typos -- some of which prevent SDH ↵Mike Frysinger
building for the BF542 Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23[Blackfin] arch: relocate MAX_SWITCH_{D,I}_CPLBS from the header to the file ↵Mike Frysinger
where it actually gets used. relocate MAX_SWITCH_{D,I}_CPLBS from the header to the file where it actually gets used. this way when we change CONFIG_MEM_SIZE in our kconfig, we only rebuild one or two files rather than a whole bunch that implicitly include cplb.h. this will also remove the ability to clear the swapcount on the fly, but i really dont think that functionality is important. ultimate goal is for CONFIG_MEM_SIZE to go away and calculate this value on the fly based on what u-boot programmed for us. Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23[Blackfin] arch: replace implied numbers with real valuesMike Frysinger
replace implied numbers with real values so that strace is able to calculate things automatically ... the numbers are frozen in our ABI, so having them based off other __NR_xxx values really doesnt matter -- no functional changes Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23[Blackfin] arch: MEM_ADD_WIDTH only gets used when reprogramming clocks, so ↵Mike Frysinger
dont bother exposing it in the menu normally Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23[Blackfin] arch: update reboot code to match latest info (really just copy ↵Mike Frysinger
from u-boot) Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23[Blackfin] arch: Add dma_map_page and dma_unmap_page stub for MMC SPI compilingBryan Wu
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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