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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-14 13:42:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-14 13:42:43 -0700
commit2cf4d4514d5b43c1f3b64bd0ec8b9853bde8f1dc (patch)
treee35a625496acc6ac852846d40b8851186b9d1ac4 /arch/arm/mach-u300/padmux.c
parent44b7532b8b464f606053562400719c9c21276037 (diff)
parentce53895a5d24e0ee19fb92f56c17323fb4c9ab27 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (417 commits) MAINTAINERS: EB110ATX is not ebsa110 MAINTAINERS: update Eric Miao's email address and status fb: add support of LCD display controller on pxa168/910 (base layer) [ARM] 5552/1: ep93xx get_uart_rate(): use EP93XX_SYSCON_PWRCNT and EP93XX_SYSCON_PWRCN [ARM] pxa/sharpsl_pm: zaurus needs generic pxa suspend/resume routines [ARM] 5544/1: Trust PrimeCell resource sizes [ARM] pxa/sharpsl_pm: cleanup of gpio-related code. [ARM] pxa/sharpsl_pm: drop set_irq_type calls [ARM] pxa/sharpsl_pm: merge pxa-specific code into generic one [ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specific [ARM] sa1100: remove unused collie_pm.c [ARM] pxa: fix the conflicting non-static declarations of global_gpios[] [ARM] 5550/1: Add default configure file for w90p910 platform [ARM] 5549/1: Add clock api for w90p910 platform. [ARM] 5548/1: Add gpio api for w90p910 platform [ARM] 5551/1: Add multi-function pin api for w90p910 platform. [ARM] Make ARM_VIC_NR depend on ARM_VIC [ARM] 5546/1: ARM PL022 SSP/SPI driver v3 ARM: OMAP4: SMP: Update defconfig for OMAP4430 ARM: OMAP4: SMP: Enable SMP support for OMAP4430 ...
Diffstat (limited to 'arch/arm/mach-u300/padmux.c')
-rw-r--r--arch/arm/mach-u300/padmux.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/mach-u300/padmux.c b/arch/arm/mach-u300/padmux.c
new file mode 100644
index 00000000000..f3664564f08
--- /dev/null
+++ b/arch/arm/mach-u300/padmux.c
@@ -0,0 +1,58 @@
+/*
+ *
+ * arch/arm/mach-u300/padmux.c
+ *
+ *
+ * Copyright (C) 2009 ST-Ericsson AB
+ * License terms: GNU General Public License (GPL) version 2
+ * U300 PADMUX functions
+ * Author: Linus Walleij <linus.walleij@stericsson.com>
+ *
+ */
+#include <linux/io.h>
+#include <linux/err.h>
+#include <mach/u300-regs.h>
+#include <mach/syscon.h>
+
+#include "padmux.h"
+
+/* Set the PAD MUX to route the MMC reader correctly to GPIO0. */
+void pmx_set_mission_mode_mmc(void)
+{
+ u16 val;
+
+ val = readw(U300_SYSCON_VBASE + U300_SYSCON_PMC1LR);
+ val &= ~U300_SYSCON_PMC1LR_MMCSD_MASK;
+ writew(val, U300_SYSCON_VBASE + U300_SYSCON_PMC1LR);
+ val = readw(U300_SYSCON_VBASE + U300_SYSCON_PMC1HR);
+ val &= ~U300_SYSCON_PMC1HR_APP_GPIO_1_MASK;
+ val |= U300_SYSCON_PMC1HR_APP_GPIO_1_MMC;
+ writew(val, U300_SYSCON_VBASE + U300_SYSCON_PMC1HR);
+}
+
+void pmx_set_mission_mode_spi(void)
+{
+ u16 val;
+
+ /* Set up padmuxing so the SPI port and its chipselects are active */
+ val = readw(U300_SYSCON_VBASE + U300_SYSCON_PMC1HR);
+ /*
+ * Activate the SPI port (disable the use of these pins for generic
+ * GPIO, DSP, AAIF
+ */
+ val &= ~U300_SYSCON_PMC1HR_APP_SPI_2_MASK;
+ val |= U300_SYSCON_PMC1HR_APP_SPI_2_SPI;
+ /*
+ * Use GPIO pin SPI CS1 for CS1 actually (it can be used for other
+ * things also)
+ */
+ val &= ~U300_SYSCON_PMC1HR_APP_SPI_CS_1_MASK;
+ val |= U300_SYSCON_PMC1HR_APP_SPI_CS_1_SPI;
+ /*
+ * Use GPIO pin SPI CS2 for CS2 actually (it can be used for other
+ * things also)
+ */
+ val &= ~U300_SYSCON_PMC1HR_APP_SPI_CS_2_MASK;
+ val |= U300_SYSCON_PMC1HR_APP_SPI_CS_2_SPI;
+ writew(val, U300_SYSCON_VBASE + U300_SYSCON_PMC1HR);
+}