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* ARM: mxs/clock-mx28: fix up name##_set_rateUwe Kleine-König2011-04-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* ARM: mxs: dynamically allocate mmc deviceShawn Guo2011-03-25
| | | | | | | 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>
* ARM: mx28: set proper parent for lcdif clockShawn Guo2011-03-10
| | | | | | | | | 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>
* ARM: mxs: add dma deviceShawn Guo2011-03-07
| | | | | | 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>
* ARM i.MX23/28: Add framebuffer device supportSascha Hauer2011-03-07
| | | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: Shawn Guo <shawn.guo@freescale.com>
* ARM: mxs: Add pwm clocks and device registrationSascha Hauer2011-03-01
| | | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
* Merge commit 'v2.6.38-rc4' into imx-for-2.6.39Sascha Hauer2011-02-11
|\ | | | | | | | | | | | | Conflicts: arch/arm/mach-mxs/clock-mx28.c Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * ARM: mxs/imx28: remove now unused clock lookup "fec.0"Uwe Kleine-König2011-02-01
| | | | | | | | | | | | | | | | | | | | 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>
| * ARM: mxs: fix clock base address missingShawn Guo2011-02-01
| | | | | | | | | | Signed-off-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * ARM i.MX28: use correct register for setting the rateSascha Hauer2011-01-24
| | | | | | | | | | | | | | | | _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>
| * ARM i.MX28: fix bit operationSascha Hauer2011-01-24
| | | | | | | | | | | | | | | | 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>
* | ARM: mxs: adjust flexcan clock definitionMarc Kleine-Budde2011-02-03
| | | | | | | | | | Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | ARM MXS: Add auart platform support for i.MX28Sascha Hauer2011-01-25
|/ | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM mxs: clkdev related compile fixesSascha Hauer2011-01-14
| | | | | | | | | | | | | | | 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>
* ARM: mxs: Change duart device to use amba-pl011Shawn Guo2011-01-12
| | | | | | | | | 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>
* ARM: mx28: update clock and device name for dual fec supportShawn Guo2011-01-11
| | | | | | | | 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>
* ARM: mxs: Add clock supportShawn Guo2010-12-20
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>
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