In currently, when __bss_start is equal to __bss_end__,
The bss loop will clear all the things in memory space.

But just only when __bss_end__ greater than __bss_start__,
we do the clear bss section operation.
Signed-off-by: NZhong Hongbo <bocui107@gmail.com>
Acked-by: NAndreas Bießmann <andreas.devel@googlemail.com>

* 'master' of git://git.denx.de/u-boot-usb:
  usb_storage: fix ehci driver max transfer size
  smsc95xx: align buffers to cache line size
  ehci-hcd: change debug() to printf() in case of errors
  usb: check return value of submit_{control, bulk}_msg
  usb: pass cache-aligned buffer to usb_get_descriptor()
  ehci-hcd: fix external buffer cache handling
  ehci-hcd.c, musb_core, usb.h: Add USB_DMA_MINALIGN define for cache alignment
  ehci-hcd: program asynclistaddr before every transfer
  common.h: Introduce DEFINE_CACHE_ALIGN_BUFFER
  ehci-omap: Do not call dcache_off from omap_ehci_hcd_init
Signed-off-by: NWolfgang Denk <wd@denx.de>

* 'sf' of git://git.denx.de/u-boot-blackfin:
  sf: spansion: inline useless id defines
  sf: drop unused/duplicate command defines
Signed-off-by: NWolfgang Denk <wd@denx.de>

* 'master' of git://git.denx.de/u-boot-net:
  net: link_local: fix build
  net: bootp: fix build
Signed-off-by: NWolfgang Denk <wd@denx.de>

We have a header file specifically for mingw cruft, so keep it there
to avoid crap spreading into the main tools.  This lets our devs just
worry about *nix systems.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

No need for dedicated defines when these really only get used once.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

In an effort to unify the spi flash drivers further, drop all the
unused and/or duplicate command defines.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Fix comment within comment build error.
Signed-off-by: NBenoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Joe Hershberger <joe.hershberger@gmail.com>

Fix NetSetState function name used with CONFIG_BOOTP_MAY_FAIL.
Signed-off-by: NBenoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Joe Hershberger <joe.hershberger@gmail.com>

Now that common code doesn't declare these as volatile, we don't need to
either anymore.  This fixes the build warning:

bfin_mac.c: In function 'bfin_EMAC_recv':
bfin_mac.c:193:23: warning: assignment discards qualifiers from pointer target type
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

The commit 5dd95cf9 'usb_storage:
Fix EHCI "out of buffer pointers" with CD-ROM' introduce a bug in
usb_storage as it wrongly assumes that every transfer can use
4096 bytes per qt_buffer. This is wrong if the start address of
the data is not page aligned to 4096 bytes and leads to 'EHCI
timed out on TD' messages because of 'out of buffer pointers'
in ehci_td_buffer function.

The bug appears during load of a fragmented file and
read from or write to an unaligned memory address.

Cc: Marek Vasut <marex@denx.de>
Signed-off-by: NStefan Herbrechtsmeier <stefan@herbrechtsmeier.net>

Align buffers passed to the USB code to cache line size so
they can be DMAed safely.
Signed-off-by: NIlya Yanok <ilya.yanok@cogentembedded.com>

Printing message could be useful if something goes really wrong.
Signed-off-by: NIlya Yanok <ilya.yanok@cogentembedded.com>

Return values of submit_{control,bulk}_msg() functions
should be checked to detect possible error.
Signed-off-by: NIlya Yanok <ilya.yanok@cogentembedded.com>

usb_get_descriptor passes it's buffer argument directly to
usb_control_msg() so it has to be properly aligned/padded.
Signed-off-by: NIlya Yanok <ilya.yanok@cogentembedded.com>

Buffer coming from upper layers should be cacheline aligned/padded
to perform safe cache operations. For now we don't do bounce
buffering so getting unaligned buffer is an upper layer error.
We can't check if the buffer is properly padded with current
interface so just assume it is (consider changing with in the
future). The following changes are done:

1. Remove useless length alignment check. We get actual transfer
length not the size of the underlying buffer so it's perfectly
valid for it to be unaligned.
2. Move flush_dcache_range() out of while loop or it will
flush too much.
3. Don't try to fix buffer address before calling invalidate:
if it's unaligned it's an error anyway so let cache subsystem
cry about that.
4. Fix end buffer address to be cacheline aligned assuming upper
layer reserved enough space. This is potentially dangerous
operation so upper layers should be careful about that.
Signed-off-by: NIlya Yanok <ilya.yanok@cogentembedded.com>

The USB spec says that 32 bytes is the minimum required alignment.
However on some platforms we have a larger minimum requirement for cache
coherency.  In those cases, use that value rather than the USB spec
minimum.  We add a cpp check to <usb.h> to define USB_DMA_MINALIGN and
make use of it in ehci-hcd.c and musb_core.h.  We cannot use MAX() here
as we are not allowed to have tests inside of align(...).
Signed-off-by: NTom Rini <trini@ti.com>
[marek.vasut]: introduce some crazy macro voodoo
Signed-off-by: NMarek Vasut <marex@denx.de>
[ilya.yanok]: moved external buffer fixes to separate patch,
we use {ALLOC,DEFINE}_ALIGN_BUFFER macros with alignment of USB_DMA_MINALIGN
for qh_list, qh and qtd structures to make sure they are proper aligned
for both controller and cache operations.
Signed-off-by: NIlya Yanok <ilya.yanok@cogentembedded.com>

Move or_asynclistaddr programming to ehci_submit_async()
function to make sure queue head is properly programmed
before every transfer. This solves the problem with changing
qh address.

Also remove unneeded qh_list->qh_link reprogramming at the
end of transfer.
Signed-off-by: NIlya Yanok <ilya.yanok@cogentembedded.com>

This is the out-of-function-scope counterpart of
ALLOC_CACHE_ALIGN_BUFFER.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Tom Rini <trini@ti.com>
[ilya.yanok]: added missing <linux/compiler.h> include and
{DEFINE,ALLOC}_ALIGN_BUFFER macros allowing explicit alignment
specification.
Signed-off-by: NIlya Yanok <ilya.yanok@cogentembedded.com>

This has never been completely sufficient and now happens too late to
paper over the cache coherency problems with the current USB stack.

Cc: Marek Vasut <marex@denx.de>
Signed-off-by: NTom Rini <trini@ti.com>
Signed-off-by: NIlya Yanok <ilya.yanok@cogentembedded.com>

* 'next' of git://git.denx.de/u-boot-video:
  ipu_common: Add ldb_clk for use in parenting the pixel clock
  ipu_common: Do not hardcode the ipu_clk frequency
  ipu_common: Rename MXC_CCM_BASE
  ipu_common: Let clk_ipu_enable/disable only run on MX51 and MX53
  ipu_common: Only apply the erratum to MX51
  video: Rename CONFIG_VIDEO_MX5
  mx6: Allow mx6 to access the IPUv3 registers
  common lcd: minor coding style changes
Signed-off-by: NWolfgang Denk <wd@denx.de>

* 'master' of git://git.denx.de/u-boot-nios:
  nios2: move gd and bd into BSS
Signed-off-by: NWolfgang Denk <wd@denx.de>

As suggested by Graeme Russ, move gd and bd data structrures
to BSS instead of calculating the locations around the stack
and heap.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMike Frysinger <vapier@gentoo.org>

For FSL low-end processors (VVN2.2), in order to detect the SD card,
we should enable PEREN, HCKEN and IPGEN to enable the clock.
Otherwise, after booting the u-boot, and then inserting the SD card,
the SD card can't be detected.
For SDHC VVN2.3 IP, these bits are reserved, and SDCLKEN is used.
And when accessing to these reserved bit, no any impact happened.
Signed-off-by: NJerry Huang <Chang-Ming.Huang@freescale.com>
CC: Andy Fleming <afleming@gmail.com>
CC: Marek Vasut <marex@denx.de>
Signed-off-by: NAndy Fleming <afleming@freescale.com>

Use the function 'mmc_send_status' to check the card status.
only when the card is ready, driver can send the next erase command
to the card, otherwise, the erase will failed:
=> mmc erase 0 1
MMC erase: dev # 0, block # 0, count 1 ... 1 blocks erase: OK
=> mmc erase 0 2
MMC erase: dev # 0, block # 0, count 2 ... mmc erase failed
1 blocks erase: ERROR
=> mmc erase 0 4
MMC erase: dev # 0, block # 0, count 4 ... mmc erase failed
1 blocks erase: ERROR
Signed-off-by: NJerry Huang <Chang-Ming.Huang@freescale.com>
CC: Andy Fleming <afleming@gmail.com>
CC: Marek Vasut <marex@denx.de>
Signed-off-by: NAndy Fleming <afleming@freescale.com>

This code adds call to mmc_init(), for partition related commands (e.g.
fatls, fatinfo etc.).

It is safe to call mmc_init() multiple times since mmc->has_init flag
prevents from multiple initialization.

The FAT related code calls get_dev high level method and then uses
elements from mmc->block_dev, which is uninitialized until the mmc_init
(and thereof mmc_startup) is called.

This problem appears on boards, which don't use mmc as the default
place for envs
Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Cc: Andy Fleming <afleming@gmail.com>
Signed-off-by: NAndy Fleming <afleming@freescale.com>

mmc_set_clock is set to the hard-coding.
But i think good that use the tran_speed value.
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NAndy Fleming <afleming@freescale.com>

Signed-off-by: NEric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: NAndy Fleming <afleming@freescale.com>

* 'master' of git://git.denx.de/u-boot-i2c:
  mx28evk: Add I2C support
  mxs-i2c: Fix internal address byte order
  mxc_i2c: remove setting speed at each start
  mx6qsabrelite: add i2c support
  mxc_i2c: specify i2c base address in config file
Signed-off-by: NWolfgang Denk <wd@denx.de>

Add I2C support.

Tested by placing a 24LC16 EEPROM into the U50 slot which comes empty from factory.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NMarek Vasut <marex@denx.de>

Large EEPROMs, e.g. 24lc32, need 2 byte to address the internal memory.
These devices require that the high byte of the internal address has to be
written first.
The mxs_i2c driver currently writes the address' low byte first.

The following patch fixes the byte order of the internal address that should
be written to the I2C device.
Signed-off-by: NTorsten Fleischer <to-fleischer@t-online.de>

CC: Marek Vasut <marex@denx.de>
CC: Stefano Babic <sbabic@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: NMarek Vasut <marex@denx.de>
Acked-by: NStefano Babic <sbabic@denx.de>

Other then being very weird, this code was also wrong.
For example, say I set speed to 100K. I'll read back the speed
as 85937. But the speed is really 85937.5, so we I reset
the speed to 85937, I'll get 73660.7. After a couple of transactions
my speed is now exactly 68750 so it will remain there.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>
Acked-by: NStefano Babic <sbabic@denx.de>

Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NStefano Babic <sbabic@denx.de>

The following platforms had their config files changed
flea3, imx31_phycore, mx35pdk, mx53ard, mx53evk, mx53smd
and mx53loco.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NStefano Babic <sbabic@denx.de>

The clean up patch missed an &, so we end up passing an int rather than
a pointer to the sprintf function.

arp.c: In function 'ArpReceive':
arp.c:197: warning: format '%p' expects type 'void *', but argument 3 has type 'int'
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

When support sh7734 of sh-ether, ECSIPR_BRCRXIP and other were removed.
Therefore SH7757 and SH7724 can not build. This revise this probelem.
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu@nigauri.org>
Tested-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

Add ldb_clk for use in parenting the pixel clock.
Signed-off-by: NEric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>

Do not hardcode the ipu_clk frequency and let the board file pass this value.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>

Rename MXC_CCM_BASE to CCM_BASE_ADDR as this is already defined for MX6.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>

The registers accessed inside clk_ipu_enable/disable are not present on MX6,
so make sure they only run on MX51 and MX53.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>