Commit Graph

12 Commits

Author SHA1 Message Date
Heiko Stuebner
5227a54a0f ARM: S3C24XX: Add devname for hsmmc1 pclk
S3C2443 uses hsmmc1 as its only hsmmc device and for S3C2416/S3C2450
it's the second hsmmc channel with the same PCLKCON bit.
The hsmmc-if clocks on both systems already got a devname, as did
the hsmmc pclk for hsmmc0 on the S3C2416. So to make it possible to
identify the hsmmc1 pclk on S3C2416 add the correct devname for it.
The sclk name on S3C2443 also is s3c-sdhci.1.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-10-14 15:35:08 +09:00
Heiko Stuebner
33ccedfd1b ARM: S3C24XX: use clk_get_rate to init fclk in common_setup_clocks
Previously the fclk rate was calculated by dividing the pll through
the divider value of the armdiv. With a real armdiv clk in place it's
possible to simply read its value, which does essentially the same.

This change makes the whole fdiv_fn function pointers supplied to
s3c2443_common_init_clocks and s3c2443_common_setup_clocks
obsolete, so remove it too.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-10-14 15:15:53 +09:00
Heiko Stuebner
866a1c8c35 ARM: S3C2443: Accommodate cpufreq frequency scheme in armdiv
Cpufreq uses frequencies in kHz and not Hz, so set_rate and round_rate
would be called with a frequency of 266666000 instead of 266666666 but
the clock functions check for rates smaller or equal to the targetrate.

As the armdiv does not support steps this small we can accommodate
this by simply also setting the last 3 digits of the calculated rate
to zero.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-10-14 15:15:52 +09:00
Heiko Stuebner
f9f7c7503f ARM: S3C2443: handle unset armdiv values gracefully
The armdiv array may contain unset divider values.
Check the relevant value to prevent division by zero
errors. Also check for set nr_armdiv and armdivmask
before meddling with clkdiv0.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-10-14 15:15:52 +09:00
Heiko Stuebner
5f33bd76f5 ARM: S3C2443: Add get_rate operation for clk_armdiv
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-10-14 15:15:51 +09:00
Heiko St?bner
aab08eebdf ARM: S3C2443: Move clk_arm and clk_armdiv to common code
The system-layout of the armdiv and armclk is common to
S3C2443/S3C2416/S3C2450 and only differs in the array of
possible dividers. Therefore it is possible to reuse the
clock definitions for all of these SoCs.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-10-14 15:15:49 +09:00
Heiko Stuebner
d9a3bfbd7e ARM: S3C24XX: Add infrastructure to transmit armdiv to common code
This is needed for making the armdiv clock common to S3C2443
and S3C2416/2450.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-10-14 15:15:49 +09:00
Heiko Stuebner
8b069b7709 ARM: S3C2443: Add hsspi-clock from pclk and rename S3C2443 hsspi sclk
This clock is common to S3C2443/2416/2450.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-10-04 19:01:29 +09:00
Heiko Stuebner
e3b454f731 ARM: S3C2443: Move i2s clock definitions to common code
S3C2416/S3C2450 use the same clocks for their i2s blocks
and can therefore reuse the existing ones.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-10-04 19:01:10 +09:00
Thomas Abraham
e83626f2fd ARM: S3C24XX: Add clkdev support
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-20 19:11:29 +09:00
Yauhen Kharuzhy
95d6791b4f ARM: S3C24XX: Add address map and clock definitions for HSMMC0
Define maps for HSMMC devices.

S3C2443 has one HSMMC device with base address 0x4A800000.
S3C2416 has HSMMC0 at 0x4AC00000 and HSMMC1 at 0x4A800000.

So suppose that S3C2443 has only HSMMC1.

Define clock for hsmmc0 device and register it.

Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-01-06 14:09:18 +09:00
Ben Dooks
af337f3e63 ARM: S3C2443: Move parts of the clock code to common clock file
To share code with some of the newer parts such as the S3C2416, move
parts of arch/arm/mach-s3c2443/clock.c to a common file called
arch/arm/plat-s3c24xx/s3c2443-clock.c.

Update the build configuration to deal with this new file.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-10 11:44:42 +09:00