Commit graph

108 commits

Author SHA1 Message Date
Daniel Schwierzeck
7b64f66c58 lib: vsprintf.c: replace NUM_TYPE with s64/u64 types
This fixes warnings when compiling with ELDK-5.2.1 for MIPS64:

vsprintf.c: In function 'put_dec':
vsprintf.c:258:9: warning: comparison of distinct pointer types lacks a cast [enabled by default]
vsprintf.c:258:3: warning: passing argument 1 of '__div64_32' from incompatible pointer type [enabled by default]
include/div64.h:22:17: note: expected 'uint64_t *' but argument is of type 'long long unsigned int *'

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-10-15 11:53:46 -07:00
Daniel Schwierzeck
8acdae681a lib: vsprintf.c: fix checkpath.pl warnings
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-10-15 11:53:46 -07:00
Albert ARIBAUD
b823fd9ba5 ARM: prevent misaligned array inits
Under option -munaligned-access, gcc can perform local char
or 16-bit array initializations using misaligned native
accesses which will throw a data abort exception. Fix files
where these array initializations were unneeded, and for
files known to contain such initializations, enforce gcc
option -mno-unaligned-access.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
[trini: Switch to usign call cc-option for -mno-unaligned-access as
Albert had done previously as that's really correct]
Signed-off-by: Tom Rini <trini@ti.com>
2012-10-15 11:53:07 -07:00
Ilya Yanok
7ac2fe2da2 OMAP: networking support for SPL
This patch adds support for networking in SPL. Some devices are
capable of loading SPL via network so it makes sense to load the
main U-Boot binary via network too. This patch tries to use
existing network code as much as possible. Unfortunately, it depends
on environment which in turn depends on other code so SPL size
is increased significantly. No effort was done to decouple network
code and environment so far.

Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Tom Rini <trini@ti.com>
2012-10-01 10:02:14 -07:00
Lei Wen
88d52c6aff lib: add gzip lib function callback
Signed-off-by: Lei Wen <leiwen@marvell.com>
2012-09-29 07:26:08 -07:00
Lei Wen
869c2abbaf lib: zlib: remove the limitation for cannot using 0 as start
We often need the requirement that compressing those memory range start
from 0, but the default deflate code in zlib prevent us to do this.
Considering the special case of uboot, that it could access all memory
range, it is reasonable to be able to also take the address space from 0
into compression.

Signed-off-by: Lei Wen <leiwen@marvell.com>
2012-09-29 07:26:08 -07:00
Lei Wen
7a32b98dac lib: zlib: include deflate into zlib build
Add a new config CONFIG_GZIP_ENABLED, if enabled, the uboot bin would
include zlib's deflate method which could be used for compressing.

Signed-off-by: Lei Wen <leiwen@marvell.com>
2012-09-29 07:26:08 -07:00
Lei Wen
e9a128d8e9 lib: zlib: import trees file from 1.2.5
Signed-off-by: Lei Wen <leiwen@marvell.com>
2012-09-29 07:26:08 -07:00
Lei Wen
8a5f34effa lib: zlib: import deflate source file from 1.2.5
Signed-off-by: Lei Wen <leiwen@marvell.com>
2012-09-29 07:26:08 -07:00
Tom Rini
9fe2cfb43a Merge branch 'agust@denx.de' of git://git.denx.de/u-boot-staging 2012-09-21 16:22:18 -07:00
Tom Rini
495dbd72dd Merge branch 'master' of git://git.denx.de/u-boot-arm 2012-09-21 14:53:13 -07:00
Simon Glass
1cb2323b8a fdt: Tidy debugging, add to fdtdec_get_int/addr()
The new debugging shows the value of integers and addresses read
from the device tree and tidy up GPIO output.

Signed-off-by: Simon Glass <sjg@chromium.org>
2012-09-21 22:01:13 +02:00
Gerlando Falauto
d5370febbc env: delete selected vars not present in imported env
When variables explicitly specified on the command line are not present
in the imported env, delete them from the running env.
If the variable is also missing from the running env, issue a warning.

Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2012-09-18 12:01:52 -07:00
Gerlando Falauto
152874b65b env: check and apply changes on delete/destroy
Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2012-09-18 12:01:52 -07:00
Gerlando Falauto
c5983592e9 env: add check/apply logic to himport_r()
Change hashtable so that a callback function will decide whether a
variable can be overwritten, and possibly apply the changes.

So add a new field to struct hsearch_data:

 o "apply" callback function to check whether a variable can be
    overwritten, and possibly immediately apply the changes;
    when NULL, no check is performed.

And a new argument to himport_r():
 o "do_apply": whether to call the apply callback function

NOTE: This patch does not change the current behavior.

Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2012-09-18 12:01:52 -07:00
Gerlando Falauto
348b1f1c60 env: make himport_r() selective on variables
Add 2 new arguments to himport_r():

 o "nvars", "vars": number and list of variables to take into account
   (0 means ALL)

NOTE: This patch does not change the current behaviour.

Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2012-09-18 12:01:52 -07:00
Jim Lin
312693c3dd tegra: nand: Add Tegra NAND driver
A device tree is used to configure the NAND, including memory
timings and block/pages sizes.

If this node is not present or is disabled, then NAND will not
be initialized.

Signed-off-by: Jim Lin <jilin@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-09-07 13:54:31 -07:00
Michal Simek
e46431e190 fdt: Include arch specific gpio.h instead of asm-generic/gpio.h
Include arch specific gpio.h instead of asm-generic/gpio.h
because several architectures (Microblaze, Blackfin, Nios2, OpenRISC)
define gpio functions in header file.
asm-generic/gpio.h can be included in arch specific gpio.h
(For example: ARM)

Signed-off-by: Michal Simek <monstr@monstr.eu>
CC: Simon Glass <sjg@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Simon Glass <sjg@chromium.org>
2012-08-10 23:25:47 +02:00
Wolfgang Denk
50cd93b250 Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm: (212 commits)
  ARM: cache: Move the cp15 CR register read before flushing the cache.
  ARM: introduce arch_early_init_r()
  PXA: Enable CONFIG_PREBOOT on zipitz2
  ARM: mx28: Remove CONFIG_ARCH_CPU_INIT
  No need to define CONFIG_ARCH_CPU_INIT.
  add new board vl_ma2sc
  MTD: SPEAr SMI: Add write support for length < 4 bytes
  i2c: designware_i2c.c: Add support for the "i2c probe" command
  rtc/m41t62: Add support for M41T82 with HT (Halt Update)
  SPL: ARM: spear: Add SPL support for SPEAr600 platform
  Makefile: Add u-boot.spr build target (SPEAr)
  SPL: ARM: spear: Remove some objects from SPL build
  SPL: lib/Makefile: Add crc32.c to SPL build
  SPL: common/Makefile: Add image.c to SPL build
  arm: Don't use printf() in SPL builds
  GPIO: Add SPEAr GPIO driver
  net: Multiple updates/enhancements to designware.c
  cleanup/SPEAr: Define configuration flags more elegantly
  cleanup/SPEAr: Remove unnecessary parenthesis
  SPEAr: Correct SoC ID offset in misc configuration space
  SPEAr: explicitly select clk src for UART
  SPEAr: Remove CONFIG_MTD_NAND_VERIFY_WRITE to speed up NAND access
  SPEAr: Enable ONFI nand flash detection for spear3xx and 6xx and evb
  SPEAr: Enable CONFIG_SYS_FLASH_EMPTY_INFO macro
  SPEAr: Correct the definition of CONFIG_SYS_MONITOR_BASE
  SPEAr: Enable CONFIG_SYS_FLASH_PROTECTION
  SPEAr: Enable dcache for fast file transfer
  SPEAr: Enable autoneg for ethernet
  SPEAr: Enable udc and usb-console support only for usbtty configuration
  SPEAr: Enable usb device high speed support
  SPEAr: Initialize SNOR in early_board_init_f
  SPEAr: Change the default environment variables
  SPEAr: Remove unused flag (CONFIG_SYS_HZ_CLOCK)
  SPEAr: Add configuration options for spear3xx and spear6xx boards
  SPEAr: Add basic arch related support for SPEAr SoCs
  SPEAr: Add interface information in initialization
  SPEAr: Add macb driver support for spear310 and spear320
  SPEAr: Configure network support for spear SoCs
  SPEAr: Place ethaddr write and read within CONFIG_CMD_NET
  SPEAr: Eliminate dependency on Xloader table
  SPEAr: Fix ARM relocation support
  st_smi: Fixed page size for Winbond W25Q128FV flash
  st_smi: Change timeout loop implementation
  st_smi: Fix bug in flash_print_info()
  st_smi: Change the flash probing method
  st_smi: Removed no needed dependency on ST_M25Pxx_ID
  st_smi: Fix smi read status
  st_smi: Move status register read before modifying ctrl register
  st_smi: Read status until timeout happens
  st_smi: Enhance the error handling
  st_smi: Change SMI timeout values
  st_smi: Return error in case TFF is not set
  st_smi: Add support for SPEAr SMI driver
  mtd/NAND: Remove obsolete SPEAr specific NAND drivers
  SPEAr: Configure FSMC driver for NAND interface
  mtd/NAND: Add FSMC driver support
  arm/km: remove calls to kw_gpio_* in board_early_init_f
  arm/km: add implementation for read_dip_switch
  arm/km: support the 2 PCIe fpga resets
  arm/km: skip FPGA config when already configured
  arm/km: redefine piggy 4 reg names to avoid conflicts
  arm/km: cleanup km_kirkwood boards
  arm/km: enable BOCO2 FPGA download support
  arm/km: remove portl2.h and use km_kirkwood instead
  arm/km: convert mgcoge3un target to km_kirkwood
  arm/km: add kmcoge5un board support
  arm/km: add kmnusa board support
  arm: bugfix: save_boot_params_default accesses uninitalized stack when -O0
  cm-t35: fix incorrect NAND_ECC layout selection
  ARM: OMAP4/5: Do not configure non essential pads, clocks, dplls.
  ARM: OMAP4/5: Move USB pads to essential list.
  ARM: OMAP4/5: Move USB clocks to essential group.
  ARM: OMAP4/5: Move gpmc clocks to essential group.
  ARM: OMAP4+: Move external phy initialisations to arch specific place.
  omap4: Use a smaller M,N couple for IVA DPLL
  da850/omap-l138: Enable auto negotiation in RMII mode
  omap: am33xx: accomodate input clocks other than 24 Mhz
  omap: emif: fix bug in manufacturer code test
  omap: emif: deal with rams that return duplicate mr data on all byte lanes
  OMAP4+: Force DDR in self-refresh after warm reset
  OMAP4+: Handle sdram init after warm reset
  ARM: OMAP3+: Detect reset type
  arm: bugfix: Move vector table before jumping relocated code
  Kirkwood: Add support for Ka-Ro TK71
  arm/km: use spi claim bus to switch between SPI and NAND
  arm/kirkwood: protect the ENV_SPI #defines
  ARM: don't probe PHY address for LaCie boards
  lacie_kw: fix CONFIG_SYS_KWD_CONFIG for inetspace_v2
  lacie_kw: fix SDRAM banks number for net2big_v2
  Kirkwood: add lschlv2 and lsxhl board support
  net: add helper to generate random mac address
  net: use common rand()/srand() functions
  lib: add rand() function
  kwboot: boot kirkwood SoCs over a serial link
  kw_spi: add weak functions board_spi_claim/release_bus
  kw_spi: support spi_claim/release_bus functions
  kw_spi: backup and reset the MPP of the chosen CS pin
  kirkwood: fix calls to kirkwood_mpp_conf
  kirkwood: add save functionality kirkwood_mpp_conf function
  km_arm: use filesize for erase in update command
  arm/km: enable mii cmd
  arm/km: remove CONFIG_RESET_PHY_R
  arm/km: change maintainer for mgcoge3un
  arm/km: fix wrong comment in SDRAM config for mgcoge3un
  arm/km: use ARRAY_SIZE macro
  arm/km: rename CONFIG option CONFIG_KM_DEF_ENV_UPDATE
  arm/km: add piggy mac adress offset for mgcoge3un
  arm/km: add board type to boards.cfg
  AT91SAM9*: Change kernel address in dataflash to match u-boot's size
  ATMEL/PIO: Enable new feature of PIO on Atmel device
  ehci-atmel: fix compiler warning
  AT91: at91sam9m10g45ek : Enable EHCI instead OHCI
  Atmel : usb : add EHCI driver for Atmel SoC
  Fix: AT91SAM9263 nor flash usage
  Fix: broken boot message at serial line on AT91SAM9263-EK board
  i.MX6 USDHC: Use the ESDHC clock
  mx28evk: Fix boot by adjusting HW_DRAM_CTL29 register
  i.MX28: Add function to adjust memory parameters
  mx28evk: Fix PSWITCH key position
  mx53smd: Remove CONFIG_SYS_I2C_SLAVE definition
  mx53loco: Remove CONFIG_SYS_I2C_SLAVE definition
  mx53evk: Remove CONFIG_SYS_I2C_SLAVE definition
  mx53ard: Remove CONFIG_SYS_I2C_SLAVE definition
  mx35pdk: Remove CONFIG_SYS_I2C_SLAVE definition
  imx31_phycore: Remove CONFIG_SYS_I2C_SLAVE definition
  mx53ard: Remove unused CONFIG_MII_GASKET
  mx6: Avoid writing to read-only bits in imximage.cfg
  m28evk: use same notation to alloc the 128kB stack
  ...

Signed-off-by: Wolfgang Denk <wd@denx.de>
2012-07-08 19:26:33 +02:00
Stefan Roese
aca587b0da SPL: lib/Makefile: Add crc32.c to SPL build
This is needed for the SPEAr SPL support, as SPEAr uses the mkimage
header to wrap and validate the images (SPL & U-Boot).

Signed-off-by: Stefan Roese <sr@denx.de>
2012-07-07 14:07:43 +02:00
Michael Walle
99e139d590 net: use common rand()/srand() functions
Replace rand() with the functions from lib/. The link-local network code
stores its own seed, derived from the MAC address. Thus making it
independent from calls to srand() in other modules.

Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2012-07-07 14:07:32 +02:00
Michael Walle
9acf1ca50d lib: add rand() function
It's a PRNG using the simple and fast xorshift method.

Signed-off-by: Michael Walle <michael@walle.cc>
Cc: Wolfgang Denk <wd@denx.de>
2012-07-07 14:07:32 +02:00
Timur Tabi
7b6e80538b lib/powerpc: addrmap_phys_to_virt() should return a pointer
addrmap_phys_to_virt() converts a physical address (phys_addr_t) to a
virtual address, so it should return a pointer instead of an unsigned long.
Its counterpart, addrmap_virt_to_phys(), takes a pointer, so now they're
orthogonal.

The only caller of addrmap_phys_to_virt() converts the return value to
a pointer anyway.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-07-06 17:30:32 -05:00
Donghwa Lee
5a4c59be89 create lib/tizen directory
This directory includes tizen logo data, common tizen library and so on.

Signed-off-by: Donghwa Lee <dh09.lee@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Minkyu Kang <mk7.kang@samsung.com>

[ agust: change to conditionally build lib/tizen directory ]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
2012-05-25 09:15:10 +02:00
Rakesh Iyer
6642a681e4 tegra: Add tegra keyboard driver
Add support for internal matrix keyboard controller for Nvidia Tegra
platforms. This driver uses the fdt decode function to obtain its key
codes.

Support for the Ctrl modifier is provided. The left and right ctrl keys are
dealt with in the same way.

This uses the new keyboard input library (drivers/input/input.c) to decode
keys and handle most of the common input logic. The new key matrix library
is also used to decode (row, column) key positions into key codes.

The intent is to make this driver purely about dealing with the hardware.

Key detection before the driver is loaded is supported. This key will be
picked up when the keyboard driver is initialized.

Modified by Bernie Thompson <bhthompson@chromium.org> and
Simon Glass <sjg@chromium.org> for device tree, input layer, key matrix
and various other things.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-05-15 08:31:40 +02:00
Anton Staff
bed4d89277 fdt: Add fdtdec functions to read byte array
Sometimes we don't need a full cell for each value. This provides
a simple function to read a byte array, both with and without
copying it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-05-15 08:31:39 +02:00
Jimmy Zhang
0e35ad053f tegra: Add EMC support for optimal memory timings
Add support for setting up the memory controller parameters. Boards
can set up an appropriate table in the device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-05-15 08:31:38 +02:00
Yen Lin
5b1a5451d5 Add AES crypto library
Add support for AES using an implementation from Karl Malbrain.
This offers small code size (around 5KB on ARM) and supports 128-bit
AES only.

Signed-off-by: Yen Lin <yelin@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-05-15 08:31:37 +02:00
Simon Glass
3ddecfc740 fdt: Add function to return next compatible subnode
We need to iterate through subnodes of a parent, looking only at
compatible nodes. Add a utility function to do this for us.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-05-15 08:31:36 +02:00
Simon Glass
96875e7d3b fdt: Add function to locate an array in the device tree
fdtdec_locate_array() locates an integer array but does not copy it. This
saves the caller having to allocated wasted space.

Access to array elements should be through the fdt32_to_cpu() macro.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-05-15 08:31:36 +02:00
Mike Frysinger
e3ed0575a7 gunzip: rename z{alloc, free} to gz{alloc, free}
This allows us to add a proper zalloc() func (one that does a zeroing
alloc), and removes duplicate prototypes.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-30 16:54:51 +02:00
Marek Vasut
b68d63ce4b GCC47: Fix warning in md5.c
md5.c: In function ‘MD5Final’:
md5.c:156:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
md5.c:157:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-04-29 14:14:08 +02:00
Simon Glass
3786980dd3 Move bootstage timer out of lib/time.c
The standalone example does not have get_timer() defined, so we cannot
rely on it being available.

Move the timer function into boootstage.c to avoid this problem.

This corrects a build breakage for the standalone example on some boards.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Matthias Fuchs <matthias.fuchs@esd.eu>
2012-04-10 23:35:32 +02:00
Wolfgang Denk
a939ea3ab4 Merge branch 'agust@denx.de' of git://git.denx.de/u-boot-staging
* 'agust@denx.de' of git://git.denx.de/u-boot-staging:
  lzma: fix printf warnings
  Remove CONFIG_SYS_EXTBDINFO from snapper9260.h
  cmd_pxe.c: fix strict-aliasing warnings
  net: smc91111: use mdelay()
  doc: Fix some typos in different files
  disk/part.c: Fix device enumeration through API
  mkenvimage: Really set the redundant byte when applicable
  mkenvimage: Don't try to detect comments in the input file
  mkenvimage: Use mmap() when reading from a regular file
  mkenvimage: Read/Write from/to stdin/out by default or if the filename is "-"
  mkenvimage: More error handling
  mkenvimage: Correct an include and add a missing one
  mkenvimage: correct and clarify comments and error messages
  MAKEALL: display SPL size if present
  ARMV7/Vexpress: add missing get_ticks() and get_tbclk()
  mkenvimage: fix usage message
  cmd_fat: add FAT write command
  fs/fat/fat_write.c: Fix GCC 4.6 warnings
  FAT write: Fix compile errors
2012-03-30 20:17:02 +02:00
Yen Lin
96a78ac0c4 tegra: i2c: Add I2C driver
Add basic i2c driver for Tegra2 with 8- and 16-bit address support.
The driver requires CONFIG_OF_CONTROL to obtain its configuration
from the device tree.

(Simon Glass: sjg@chromium.org modified for upstream)

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-03-29 08:12:50 +02:00
Simon Glass
c67822704b fdt: Add function to allow aliases to refer to multiple nodes
Some devices can deal with multiple compatible properties. The devices
need to know which nodes to bind to which features. For example an
I2C driver which supports two different controller types will want to
know which type it is dealing with in each case.

The new fdtdec_add_aliases_for_id() function deals with this by allowing
the driver to search for additional compatible nodes for a different ID.
It can then detect the new ones and perform appropriate processing.

Another option considered was to return a tuple (node offset, compat id)
and have the function be passed a list of compatible IDs. This is more
overhead for the common case though. We may add such a function later if
more drivers in U-Boot require it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-03-29 08:12:49 +02:00
Simon Glass
9a263e55dc fdt: Avoid early panic() when there is no FDT present
CONFIG_OF_CONTROL requires a valid device tree. However, we cannot call
panic() before the console is set up since the message does not appear,
and we get a silent failure.

Remove the panic from fdtdec_check_fdt() and provide a new function to
prepare the fdt for use. This will be called after the console is ready.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-03-29 08:12:49 +02:00
Simon Glass
87f938c9f7 tegra: usb: Add support for Tegra USB peripheral
This adds basic support for the Tegra2 USB controller. Board files should
call board_usb_init() to set things up.

Configuration is performed through the FDT, with aliases used to set the
order of the ports, like this fragment:

        aliases {
		/* This defines the order of our USB ports */
                usb0 = "/usb@0xc5008000";
                usb1 = "/usb@0xc5000000";
        };

drivers/usb/host files ONLY: Acked-by: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-03-29 08:12:48 +02:00
Simon Glass
ed3ee5cd06 fdt: Add basic support for decoding GPIO definitions
This adds some support into fdtdec for reading GPIO definitions from
the fdt. We permit up to FDT_GPIO_MAX GPIOs in the system. Each GPIO
is of the form:

gpio-function-name = <phandle gpio_num flags>;

where:

phandle is a pointer to the GPIO node
gpio_num is the number of the GPIO (0 to 223)
flags is a flag, as follows:

   bit    meaning
   0      0=polarity normal, 1=active low (inverted)

An example is:

enable-propounder-gpios = <&gpio 43 0>;

which means that GPIO 43 is used to enable the propounder (setting the
GPIO high), or that you can detect that the propounder is enabled by
checking if the GPIO is high (the fdt does not indicate input/output).

Two main functions are provided:

fdtdec_decode_gpio() reads a GPIO property from an fdt node and decodes it
into a structure.

fdtdec_setup_gpio() sets up the GPIO by calling gpio_request for you.

Both functions can cope with the property being missing, which is taken to
mean that that GPIO function is not available or is not needed.

[For reference, from Stephen Warren <swarren@nvidia.com>. It may be that
we add this extra complexity later if needed:

The correct way to parse such a GPIO property in general is:

* Read the first cell.
* Find the node referenced by the phandle (the controller).
* Ensure property gpio-controller is present in the controller node.
* Read property #gpio-cells from the controller node.
* Extract #gpio-cells from the original property.
* Keep processing more cells from the original property; there may be
multiple GPIOs listed.

According to the binding documentation in the Linux kernel, Samsung
Exynos4 doesn't use this format, and while all other chips do have a
flags cell, about 50% of the controllers indicate the cell is unused.
]

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-03-29 08:12:47 +02:00
Simon Glass
d17da65560 fdt: Add functions to access phandles, arrays and bools
Add a function to look up a property which is a phandle in a node, and
another to read a fixed-length integer array from an fdt property.
Also add a function to read boolean properties, although there is no
actual boolean type in U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-03-29 08:12:47 +02:00
Simon Glass
f88fe2ded4 fdt: Tidy up a few fdtdec problems
This fixes five trivial issues in fdtdec.c:
1. fdtdec_get_is_enabled() doesn't really need a default value
2. The fdt must be word-aligned, since otherwise it will fail on ARM
3. The compat_names[] array is missing its first element. This is needed
only because the first fdt_compat_id is defined to be invalid.
4. Added a header prototype for fdtdec_next_compatible()
5. Change fdtdec_next_alias() to only increment its 'upto' parameter
on success, to make the display error messages in the caller easier.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-03-29 08:12:47 +02:00
Simon Glass
dc254f3823 fdt: Add tests for fdtdec
The fdtdec_find_aliases_for_id() function is complicated enough that
it really should have some tests. This does not necessarily need to be
committed to U-Boot, but it might be useful.

(note there are a few minor inconsistencies with this patch which will be
cleaned up when the USB series is applied)

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-03-29 08:12:47 +02:00
Simon Glass
a53f4a29ac fdt: Add fdtdec_find_aliases() to deal with alias nodes
Stephen Warren pointed out that we should use nodes whether or not they
have an alias in the /aliases section. The aliases section specifies the
order so far as it can, but is not essential. Operating without alisses
is useful when the enumerated order of nodes does not matter (admittedly
rare in U-Boot).

This is considerably more complex, and it is important to keep this
complexity out of driver code. This patch creates a function
fdtdec_find_aliases() which returns an ordered list of node offsets
for a particular compatible ID, taking account of alias nodes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-03-29 08:12:47 +02:00
Mike Frysinger
f3e6110a10 lzma: fix printf warnings
Fix size_t printf format warnings:

LzmaTools.c: In function 'lzmaBuffToBuffDecompress':
LzmaTools.c:110:5: warning: format '%x' expects type 'unsigned int',
                            but argument 2 has type 'SizeT'
LzmaTools.c:111:5: warning: format '%x' expects type 'unsigned int',
                            but argument 2 has type 'SizeT'

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-03-28 09:54:08 +02:00
Matt Porter
24de357a30 SPL: Add YMODEM over UART load support
Adds support for loading U-Boot from UART using YMODEM protocol.
If YMODEM support is enabled in SPL and the romcode indicates
that SPL loaded via UART then SPL will wait for start of a
YMODEM transfer via the console port.

Signed-off-by: Matt Porter <mporter@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
2012-03-26 23:09:25 +02:00
Simon Glass
5ff55390ed bootstage: Define an optional microsecond timer
Define timer_get_boot_us() which returns the number of microseconds
since boot. If undefined then we use get_timer() * 1000.

We can fit this in a 32-bit register which keeps everyone happy on
the efficiency side. It will wrap around after about an hour. If we
are still looking at it after an hour then we had better not be
timing the boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
2012-03-18 21:33:53 +01:00
Christian Hitz
5454ddbc9b nand: Sanitize ONFI strings.
[backport from linux commit 02f8c6aee8df3cdc935e9bdd4f2d020306035dbe]

This is part of the synchronization with the nand driver to the
Linux 3.0 state.

Signed-off-by: Christian Hitz <christian.hitz@aizo.com>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-01-26 16:09:02 -06:00
Christian Hitz
4c6de8560c nand: Merge BCH code from Linux nand driver
[backport from linux commit 02f8c6aee8df3cdc935e9bdd4f2d020306035dbe]

This patch merges the BCH ECC algorithm from the 3.0 Linux kernel.
This enables U-Boot to support modern NAND flash chips that
require more than 1-bit of ECC in software.

Signed-off-by: Christian Hitz <christian.hitz@aizo.com>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-01-26 16:09:02 -06:00
Christian Riesch
7029a24f2c spl: display_options.o is required for SPI flash support in SPL
Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Heiko Schocher <hs@denx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
2011-12-24 10:23:29 +01:00
Simon Glass
71ec92b67c vsprintf: Move function documentation into header file
Now that this is not in common.h, perhaps it is acceptable to move this
documentation into the header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2011-12-17 23:34:01 +01:00