Commit Graph

19 Commits

Author SHA1 Message Date
Tom Rini 10f7c0a965 UPSTREAM: Revert "spi: atmel: Drop non-dm code"
As we aren't quite able to convert some platforms with a very small size
limit in SPL yet, we need to revert this for now.

This reverts commit 7b0947787358c6b277431d6b76ce043d8bec641d.

Change-Id: I9953c2529a611950db1de168d772607329f827b7
Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
(cherry picked from commit e80fa2c2c0870f7c17e233ecc07552e1082c1513)
2019-07-23 17:15:32 +08:00
Tom Rini 71c98550b1 UPSTREAM: Revert "spi: atmel: Drop atmel_spi.h"
As we aren't quite able to convert some platforms with a very small size
limit in SPL yet, we need to revert this for now.

This reverts commit 37434db29be495ef41f204a97b8bf13b1418f97d.

Change-Id: I91af9f7fc85430b3c0c9c095f097e6692cac91ea
Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
(cherry picked from commit 5270df2836761909864d9b548bf4b7f7f3a51484)
2019-07-23 17:15:32 +08:00
Jagan Teki d658123d48 UPSTREAM: spi: atmel: Drop atmel_spi.h
atmel_spi.h has register offsets, and atmel_spi_slave
structure, move it into .c file for better readability
and drop atmel_spi.h

Change-Id: Ia43a1c2dc2fc7e02a7d5613c8aac31c63bd0c37c
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Wenyou Yang <wenyouya@gmail.com>
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
(cherry picked from commit 37434db29be495ef41f204a97b8bf13b1418f97d)
2019-07-23 17:15:32 +08:00
Jagan Teki c7aa08536c UPSTREAM:spi: atmel: Drop non-dm code
All board configs are now enabled DM_SPI for SPL and
U-Boot proper, so now its time to drop non-dm code.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Wenyou Yang <wenyouya@gmail.com>
(cherry picked from commit 7b0947787358c6b277431d6b76ce043d8bec641d)
Change-Id: Ifa87682ea641368d73be6a059c00d194a668bf4b
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
2019-07-23 17:15:32 +08:00
Jagan Teki 48fef189ac UPSTREAM: spi: atmel: Add ifdef for DM_GPIO code
Few boards are configuring gpio directly from board instead
using drivers/gpio so add ifdef for DM_GPIO to compatible
for both the cases.

Change-Id: I12cb7f90bd11ca5687da7992382fb3b447d5ec1c
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Wenyou Yang <wenyouya@gmail.com>
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
(cherry picked from commit 9bf48e2ee8a0174adfb0f18d110198e4ca042284)
2019-07-23 17:15:32 +08:00
Jon Lin b491b49882 UPSTREAM: wait_bit: use wait_for_bit_le32 and remove wait_for_bit
wait_for_bit callers use the 32 bit LE version

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Change-Id: I638846de7db29711fb7c778cc8304b507de057fe
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
(cherry picked from commit 48263504c8d501678acaa90c075f3f7cda17c316)
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
2019-07-05 19:21:04 +08:00
Masahiro Yamada 90aa625c9a treewide: replace with error() with pr_err()
U-Boot widely uses error() as a bit noisier variant of printf().

This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:

  # define __compiletime_error(message) __attribute__((error(message)))

This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux.  (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)

Let's convert error() into now treewide-available pr_err().

Done with the help of Coccinelle, excluing tools/ directory.

The semantic patch I used is as follows:

// <smpl>
@@@@
-error
+pr_err
 (...)
// </smpl>

Change-Id: I921807c1770d36a91e692c48ab477558bb2ed0b8
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit 9b643e312d528f291966c1f30b0d90bf3b1d43dc)
2018-01-17 15:27:28 +08:00
Simon Glass a821c4af79 dm: Rename dev_addr..() functions
These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing functions to avoid confusion.

In the end we will have:

   1. dev_read_addr...()    - works on devices, supports flat/live tree
   2. devfdt_get_addr...()  - current functions, flat tree only
   3. of_get_address() etc. - new functions, live tree only

All drivers will be written to use 1. That function will in turn call
either 2 or 3 depending on whether the flat or live tree is in use.

Note this involves changing some dead code - the imx_lpi2c.c file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:01 -06:00
Wenyou Yang 61a77ce1d5 spi: atmel: check GPIO validity before using cs_gpios
Before using the cs_gpio, check if the GPIO is valid or not.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-05-03 10:58:54 +05:30
Wenyou Yang 0eafd4b776 dm: at91: Add driver model support for the spi driver
Add driver model support while retaining the existing legacy code.
This allows the driver to support boards that have converted to
driver model as well as those that have not.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
2016-10-28 18:37:15 +02:00
Wolfgang Denk 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Bo Shen e0d2d3bd29 spi: atmel_spi: using ip version to check whether has wdrbt
Using IP version to check whether it has wdrbt bit in mode register

Tested in at91sam9x5ek and at91sam9n12ek.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
[fix warning about incompatible parameter]
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
2013-05-12 16:36:11 +02:00
Simon Glass d3504fee73 spi: Use spi_alloc_slave() in each SPI driver
Rather than each driver having its own way to allocate a SPI slave,
use the new allocation function everywhere. This will make it easier
to extend the interface without breaking drivers.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-19 08:45:36 -07:00
Bo Shen ac81e1ccf7 spi: atmel: sam9m10g45 also support WDRBT bit
The at91sam9m10g45 also support WDRBT bit, add support for it

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
2012-12-09 22:40:13 +01:00
Bo Shen 65c575506d spi: atmel: add WDRBT bit to avoid receive overrun
The atmel at91sam9x5 series spi has feature to avoid receive overren

Using the patch to enable it

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Andreas Bießmann <andreas.devel@googlemail.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
2012-09-01 17:06:14 +02:00
Anatolij Gustschin eba46d69b3 drivers/spi/atmel_spi.c: Fix GCC 4.6 warning
Fix:
atmel_spi.c: In function 'spi_xfer':
atmel_spi.c:139:7: warning: variable 'ret' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-11-16 21:28:25 +01:00
Reinhard Meyer 329f0f52fa ATMEL: fix related common atmel driver files
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
2011-05-18 07:56:51 +02:00
Reinhard Meyer f09d3b2896 AT91/AVR32: atmel_spi.c: flush RDR before next SPI transaction
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
2010-09-03 11:22:25 +02:00
Hans-Christian Egtvedt 60445cb5c3 atmel_spi: Driver for the Atmel SPI controller
This adds a driver for the SPI controller found on most AT91 and AVR32
chips, implementing the new SPI API.

Changed in v4:
  - Update to new API
  - Handle zero-length transfers appropriately. The user may send a
    zero-length SPI transfer with SPI_XFER_END set in order to
    deactivate the chip select after a series of transfers with chip
    select active. This is useful e.g. when polling the status
    register of DataFlash.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2008-06-03 20:30:05 +02:00