Commit graph

12 commits

Author SHA1 Message Date
Masahiro Yamada
14f4723466 mmc: uniphier-sd: migrate to CONFIG_BLK
This is the state-of-the-art MMC driver implementation.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-09-14 22:54:19 +09:00
Masahiro Yamada
4a89a24e26 mmc: uniphier-sd: just return if already set to desired clock rate
With this, we can save unnecessary udelay().

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-28 12:39:51 +09:00
Masahiro Yamada
8be12e2839 mmc: uniphier-sd: return error code if unsupported width is given
With the CONFIG_DM_MMC_OPS migration, the .set_ios callback can
return an integer now.  Return an appropriate error value rather
than sudden death by BUG().

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-28 12:39:49 +09:00
Masahiro Yamada
4eb008460c mmc: uniphier-sd: move uniphier_sd_init() below
No more reason to define this function above the ops structure.
Move it near the caller.  Also, change its return type to void
because it never fails.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-28 12:39:48 +09:00
Masahiro Yamada
3937404f8b mmc: uniphier-sd: migrate to CONFIG_DM_MMC_OPS
Catch up with the DM migration.

As struct dm_mmc_ops does not have .init callback, call the init
function directly from the probe function.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-28 12:39:47 +09:00
Masahiro Yamada
4a70d26223 mmc: uniphier-sd: add static qualifiers to probe and remove callbacks
They are both only referenced in this file.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-28 12:39:46 +09:00
Jaehoon Chung
915ffa5213 mmc: use the generic error number
Use the generic error number instead of specific error number.
If use the generic error number, it can debug more easier.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
2016-08-05 11:21:25 +09:00
Masahiro Yamada
4e3d84066e ARM: uniphier: use (devm_)ioremap() instead of map_sysmem()
This does not have much impact on behavior, but makes code look more
more like Linux.  The use of devm_ioremap() often helps to delete
.remove callbacks entirely.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-07-24 00:13:10 +09:00
Stephen Warren
135aa95002 clk: convert API to match reset/mailbox style
The following changes are made to the clock API:
* The concept of "clocks" and "peripheral clocks" are unified; each clock
  provider now implements a single set of clocks. This provides a simpler
  conceptual interface to clients, and better aligns with device tree
  clock bindings.
* Clocks are now identified with a single "struct clk", rather than
  requiring clients to store the clock provider device and clock identity
  values separately. For simple clock consumers, this isolates clients
  from internal details of the clock API.
* clk.h is split so it only contains the client/consumer API, whereas
  clk-uclass.h contains the provider API. This aligns with the recently
  added reset and mailbox APIs.
* clk_ops .of_xlate(), .request(), and .free() are added so providers
  can customize these operations if needed. This also aligns with the
  recently added reset and mailbox APIs.
* clk_disable() is added.
* All users of the current clock APIs are updated.
* Sandbox clock tests are updated to exercise clock lookup via DT, and
  clock enable/disable.
* rkclk_get_clk() is removed and replaced with standard APIs.

Buildman shows no clock-related errors for any board for which buildman
can download a toolchain.

test/py passes for sandbox (which invokes the dm clk test amongst
others).

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-06-19 17:05:55 -06:00
Simon Glass
cffe5d86cf dm: mmc: Set up the device pointer when using the MMC uclass
Update the existing drivers to set up this new pointer. This will be required
by the MMC uclass.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-05-17 09:54:43 -06:00
Masahiro Yamada
4f80501b91 mmc: uniphier: use devm_get_addr() to get base address
Currently, fdtdec_get_addr_size() does not support the address
translation, so it cannot handle device trees with non-straight
"ranges" properties.  (This would be a problem with DTS for UniPhier
ARMv8 SoCs.)

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-04-01 00:17:19 +09:00
Masahiro Yamada
a111bfbfad mmc: uniphier: add driver for UniPhier SD/MMC host controller
Add a driver for the on-chip SD/eMMC host controller used by
UniPhier SoC family.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-02-29 03:50:15 +09:00