u-boot.git/include/dwmmc.h, branch v2016.01

mmc: dw_mmc: support fifo mode in dwc mmc driver

2015-12-01T15:07:22+00:00

some soc(rk3036 etc) use dw_mmc but do not have internal dma,
so we implement fifo mode to read and write data.

Signed-off-by: Lin Huang 
Acked-by: Simon Glass

mmc: Support bypass mode with the get_mmc_clk() method

2015-09-03T03:28:23+00:00

Some SoCs want to adjust the input clock to the DWMMC block as a way of
controlling the MMC bus clock. Update the get_mmc_clk() method to support
this.

Signed-off-by: Simon Glass 
Acked-by: Jaehoon Chung

mmc: Add structure comments for dwmmc

2015-07-21T23:39:25+00:00

It took a little while to figure this out, so this patch adds documentation
to help the next person who needs to do this.

Signed-off-by: Simon Glass

mmc: exynos_dw_mmc: use the exynos specific data structure

2015-02-23T17:39:51+00:00

Clksel value is exynos specific value.
It removed "clksel_val" into dwmci_host and created the
"dwmci_exynos_priv_data" structure for exynos specific data.

Signed-off-by: Jaehoon Chung

mmc: dw_mmc: Fix cache alignment issue

2014-10-06T15:34:40+00:00

The DMA descriptors used by the DW MMC block must be aligned to cacheline
size, otherwise we are unable to properly flush/inval cache over them and
we get data corruption.

The reason I chose this approach of expanding the structure is because
the driver allocates the descriptors in bulk. This approach does waste
space by inserting slop inbetween the descriptors, but it makes access
to the descriptors easy as the compiler does know the real size of the
structure. It also makes cache operations easy, since the size of the
structure is cache aligned and the structure start address is as well.

Signed-off-by: Marek Vasut 
Cc: Chin Liang See 
Cc: Dinh Nguyen 
Cc: Albert Aribaud 
Cc: Tom Rini 
Cc: Wolfgang Denk 
Cc: Pavel Machek 
Cc: Pantelis Antoniou 
Acked-by: Pavel Machek

mmc: dw_mmc: support the DDR mode

2014-05-16T05:54:26+00:00

Support the DDR mode at dw-mmc controller

Signed-off-by: Jaehoon Chung 
Tested-by: Lukasz Majewski 
Acked-by: Lukasz Majewski 
Signed-off-by: Minkyu Kang

mmc: exynos_dw_mmc: restore the property into host

2014-05-16T05:54:26+00:00

Restore the platdata(property of dt) into host struct.
Then data's information is maintained and reused anywhere.

Signed-off-by: Jaehoon Chung 
Tested-by: Lukasz Majewski 
Acked-by: Lukasz Majewski 
Signed-off-by: Minkyu Kang

mmc: Split mmc struct, rework mmc initialization (v2)

2014-03-24T10:58:56+00:00

The way that struct mmc was implemented was a bit of a mess;
configuration and internal state all jumbled up in a single structure.

On top of that the way initialization is done with mmc_register leads
to a lot of duplicated code in drivers.

Typically the initialization got something like this in every driver.

	struct mmc *mmc = malloc(sizeof(struct mmc));
	memset(mmc, 0, sizeof(struct mmc);
	/* fill in fields of mmc struct */
	/* store private data pointer */
	mmc_register(mmc);

By using the new mmc_create call one just passes an mmc config struct
and an optional private data pointer like this:

	struct mmc = mmc_create(&cfg, priv);

All in tree drivers have been updated to the new form, and expect
mmc_register to go away before long.

Changes since v1:

* Use calloc instead of manually calling memset.
* Mark mmc_register as deprecated.

Signed-off-by: Pantelis Antoniou

MMC: DWMMC: Correct the CLKDIV register value

2014-02-07T15:42:26+00:00

This patch corrects the divider value written to CLKDIV register.
Since SDCLKIN is divided inside controller by the DIVRATIO value set
in the CLKSEL register, we need to use the same output clock value to
calculate the CLKDIV value.
as per user manual: cclk_in = SDCLKIN / (DIVRATIO + 1)

Input parameter to mmc_clk is changed to dwmci_host, since
we need the same to read DWMCI_CLKSEL register.

This improves the read timing values for channel 0 on SMDK5250
from 0.288sec to 0.144sec

Signed-off-by: Rajeshwari S Shinde 
Acked-by: Jaehoon Chung 
Signed-off-by: Pantelis Antoniou

mmc: dw_mmc: remove the exynos specific code in dw-mmc.c

2013-12-08T12:07:07+00:00

dw-mmc.c is the general driver file.
So, remove the exynos specific code at dw-mmc.c.
Instead, exynos specific cod can be move into exynos-dw_mmc.c.

Signed-off-by: Jaehoon Chung 
Acked-by: Alexey Brodkin 
Acked-by: Pantelis Antoniou 
Acked-by: Minkyu Kang