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Commit Graph

25 Commits

Author SHA1 Message Date
Wolfram Sang
c2735391fb arm: mx28: fix bit operation in clock setting
reg | (1 << clk->enable_shift) always evaluates to true. Switch it
to & which makes much more sense. Same fix as 13be9f00 (ARM i.MX28: fix
bit operation) at a different location.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: stable@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-11-23 19:59:12 +00:00
Linus Torvalds
16ee792e45 Merge branch 'next/devel' of git://git.linaro.org/people/arnd/arm-soc
* 'next/devel' of git://git.linaro.org/people/arnd/arm-soc: (50 commits)
  ARM: tegra: update defconfig
  arm/tegra: Harmony: Configure PMC for low-level interrupts
  arm/tegra: device tree support for ventana board
  arm/tegra: add support for ventana pinmuxing
  arm/tegra: prepare Seaboard pinmux code for derived boards
  arm/tegra: pinmux: ioremap registers
  gpio/tegra: Convert to a platform device
  arm/tegra: Convert pinmux driver to a platform device
  arm/dt: Tegra: Add pinmux node to tegra20.dtsi
  arm/tegra: Prep boards for gpio/pinmux conversion to pdevs
  ARM: mx5: fix clock usage for suspend
  ARM i.MX entry-macro.S: remove now unused code
  ARM i.MX boards: use CONFIG_MULTI_IRQ_HANDLER
  ARM i.MX tzic: add handle_irq function
  ARM i.MX avic: add handle_irq function
  ARM: mx25: Add the missing IIM base definition
  ARM i.MX avic: convert to use generic irq chip
  mx31moboard: Add poweroff support
  ARM: mach-qong: Add watchdog support
  ARM: davinci: AM18x: Add wl1271/wlan support
  ...

Fix up conflicts in:
	arch/arm/mach-at91/at91sam9g45.c
	arch/arm/mach-mx5/devices-imx53.h
	arch/arm/plat-mxc/include/mach/memory.h
2011-11-01 20:31:25 -07:00
Linus Torvalds
f906fb1d70 Merge branch 'next/board' of git://git.linaro.org/people/arnd/arm-soc
* 'next/board' of git://git.linaro.org/people/arnd/arm-soc: (34 commits)
  ep93xx: add support Vision EP9307 SoM
  ARM: mxs: Add initial support for DENX MX28
  ARM: EXYNOS4: Add support SMDK4412 Board
  ARM: EXYNOS4: Add MCT support for EXYNOS4412
  ARM: EXYNOS4: Add functions for gic interrupt handling
  ARM: EXYNOS4: Add support clock for EXYNOS4412
  ARM: EXYNOS4: Add support new EXYNOS4412 SoC
  ARM: EXYNOS4: Add support MCT PPI for EXYNOS4212
  ARM: EXYNOS4: Add support PPI in external GIC
  ARM: EXYNOS4: convert boot_params to atag_offset
  ixp4xx: support omicron ixp425 based boards
  ARM: EXYNOS4: Add support SMDK4212 Board
  ARM: EXYNOS4: Add support PM for EXYNOS4212
  ARM: EXYNOS4: Add support clock for EXYNOS4212
  ARM: EXYNOS4: Add support new EXYNOS4212 SoC
  at91: USB-A9G20 C01 & C11 board support
  at91: merge board USB-A9260 and USB-A9263 together
  at91: add support for RSIs EWS board
  ARM: SAMSUNG: Fix mask value for S5P64X0 CPU IDs
  ARM: SAMSUNG: Fix mask for S3C64xx CPU IDs
  ...
2011-11-01 20:25:36 -07:00
Matt Burtch
590842f909 ARM: i.MX28: shift frac value in _CLK_SET_RATE
Noticed when setting SSP0 in clk_set_rate, _CLK_SET_RATE attempts to
reset the clock divider for the SSP0 parent clock, in this case
IO0FRAC. Bits 24-29 of HW_CLKCTRL_FRAC0 are cleared correctly, but
when the new frac value is written the value isn't shifted up to write
the correct bit-field.  This results in IO0FRAC being set to 0 and
CPUFRAC being corrupted.

This should occur when writing IO1FRAC, EMIFRAC in HW_CLKCTRL_FRAC0
and GPMIFRAC, HSADCFRAC in HW_CLKCTRL_FRAC1.

Tested on custom i.MX28 board with SSP0 SPI driver.

Signed-off-by: Matt Burtch <matt@grid-net.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-10-25 11:17:44 +02:00
Arnd Bergmann
b4cbb8a4e6 Merge branch 'imx-features-for-arnd' of git://git.pengutronix.de/git/imx/linux-2.6 into imx/devel
Conflicts:
	arch/arm/mach-mx5/clock-mx51-mx53.c
	arch/arm/mach-mx5/devices-imx53.h
2011-10-20 15:14:25 +02:00
Stefano Babic
ea42a0d058 ARM: mxs: Add initial support for DENX MX28
Added initial support for DENX M28 module and M28EVK
board. Ethernet(FEC), SDHC, Display are supported.

Signed-off-by: Stefano Babic <sbabic@denx.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-10-13 09:06:58 +02:00
Dong Aisheng
b00d533ebc ARM: mxs: correct the using of frac div for saif
According to spec, set to 1 is the enable of fractional devide
or the clock can not be generated properly.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
2011-08-23 08:56:14 +02:00
Dong Aisheng
cf66ea8e14 ARM: mxs: add saif clock
Set pll0 as parent.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
2011-08-23 08:56:13 +02:00
Uwe Kleine-König
f61b9fc27e ARM: mxs/clock-mx28: fix up name##_set_rate
For the lcdif clock get_rate looks as follows:

	read div from HW_CLKCTRL_DIS_LCDIF.DIV
	return clk_get_rate(clk->parent) / div

with clk->parent being ref_pix_clk on my system.

ref_pix_clk's rate depends on HW_CLKCTRL_FRAC1.PIXFRAC.

The set_rate function for lcdif does:

	parent_rate = clk_get_rate(clk->parent);
	based on that calculate frac and div such that
	  parent_rate * 18 / frac / div is near the requested rate.
	HW_CLKCTRL_FRAC1.PIXFRAC is updated with frac
	HW_CLKCTRL_DIS_LCDIF.DIV is updated with div

For this calculation to be correct parent_rate needs to be
initialized not with the clock rate of lcdif's parent (i.e. ref_pix) but
that of its grandparent (i.e. ref_pix' parent == pll0_clk).

The obvious downside of this patch is that now set_rate(lcdif) changes
its parent's rate, too.  Still this is better than a wrong rate.

Acked-by: Shawn Guo <shawn.guo@freescale.com>
LAKML-Reference: 20110225084950.GA13684@S2101-09.ap.freescale.net
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-04-12 09:48:02 +02:00
Shawn Guo
47babe692e ARM: mxs: dynamically allocate mmc device
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
[ukleinek: fix naming to include complete device name in functions]
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-03-25 08:36:55 +01:00
Shawn Guo
12b90f8a2c ARM: mx28: set proper parent for lcdif clock
Most likely, the LCD panel on mx28 platform will require a pixel
clock higher than ref_xtal_clk (24 MHz), so the patch initializes
the parent of lcdif clock as ref_pix_clk.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-03-10 11:17:29 +01:00
Shawn Guo
3baa4feead ARM: mxs: add dma device
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-03-07 19:29:53 +01:00
Sascha Hauer
2e8fd69614 ARM i.MX23/28: Add framebuffer device support
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawn.guo@freescale.com>
2011-03-07 19:29:31 +01:00
Sascha Hauer
2301dfa7be ARM: mxs: Add pwm clocks and device registration
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2011-03-01 14:19:59 +01:00
Sascha Hauer
f19693a17c Merge commit 'v2.6.38-rc4' into imx-for-2.6.39
Conflicts:
	arch/arm/mach-mxs/clock-mx28.c

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-02-11 08:33:14 +01:00
Marc Kleine-Budde
6ea038a777 ARM: mxs: adjust flexcan clock definition
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-02-03 15:11:18 +01:00
Uwe Kleine-König
014aaf6b15 ARM: mxs/imx28: remove now unused clock lookup "fec.0"
Commit b2878fa (ARM: mx28: update clock and device name for dual fec
support) added only the new lookups without removing the old one.

Cc: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-02-01 10:44:25 +01:00
Shawn Guo
303783aac8 ARM: mxs: fix clock base address missing
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-02-01 10:35:38 +01:00
Sascha Hauer
cf3567aaad ARM MXS: Add auart platform support for i.MX28
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-25 08:39:58 +01:00
Sascha Hauer
34d80730c3 ARM i.MX28: use correct register for setting the rate
_CLK_SET_RATE does not only handle the cpu clock but also other
clocks, so do not hardcode the HW_CLKCTRL_CPU register.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
2011-01-24 09:01:39 +01:00
Sascha Hauer
13be9f00c3 ARM i.MX28: fix bit operation
reg | (1 << clk->enable_shift) always evaluates to true. Switch it
to & which makes much more sense

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
2011-01-24 09:01:04 +01:00
Sascha Hauer
b9214b9780 ARM mxs: clkdev related compile fixes
Since commit

	6d803ba (ARM: 6483/1: arm & sh: factorised duplicated clkdev.c)

platforms need to select CLKDEV_LOOKUP instead of COMMON_CLKDEV and need
to include <linux/clkdev.h>.

Cc: Shawn Guo <shawn.guo@freescale.com>
Cc: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-14 10:19:27 +01:00
Shawn Guo
dbc4245bb5 ARM: mxs: Change duart device to use amba-pl011
The mxs duart is actually an amba-pl011 device. This commit changes
the duart device code to dynamically allocate amba-pl011 device,
so that drivers/serial/amba-pl011.c can be used on mxs.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-12 14:47:15 +01:00
Shawn Guo
b2878fa41b ARM: mx28: update clock and device name for dual fec support
Change device name from "fec" to "imx28-fec", so that fec driver
can distinguish mx28.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-11 13:59:39 +01:00
Shawn Guo
30a7585ff7 ARM: mxs: Add clock support
Add clock for MXS-based SoCs, MX23 and MX28.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-12-20 17:30:22 +01:00