diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-14 13:42:43 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-14 13:42:43 -0700 |
commit | 2cf4d4514d5b43c1f3b64bd0ec8b9853bde8f1dc (patch) | |
tree | e35a625496acc6ac852846d40b8851186b9d1ac4 /arch/arm/mach-u300/padmux.c | |
parent | 44b7532b8b464f606053562400719c9c21276037 (diff) | |
parent | ce53895a5d24e0ee19fb92f56c17323fb4c9ab27 (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.c | 58 |
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); +} |