projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| bd41b99d LW |
1 | /* |
| 2 | * | |
| 3 | * arch/arm/mach-u300/padmux.c | |
| 4 | * | |
| 5 | * | |
| 6 | * Copyright (C) 2009 ST-Ericsson AB | |
| 7 | * License terms: GNU General Public License (GPL) version 2 | |
| 8 | * U300 PADMUX functions | |
| 9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | |
| 10 | * | |
| 11 | */ | |
| 12 | #include <linux/io.h> | |
| 13 | #include <linux/err.h> | |
| 14 | #include <mach/u300-regs.h> | |
| 15 | #include <mach/syscon.h> | |
| 16 | ||
| 17 | #include "padmux.h" | |
| 18 | ||
| 19 | /* Set the PAD MUX to route the MMC reader correctly to GPIO0. */ | |
| 20 | void pmx_set_mission_mode_mmc(void) | |
| 21 | { | |
| 22 | u16 val; | |
| 23 | ||
| 24 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_PMC1LR); | |
| 25 | val &= ~U300_SYSCON_PMC1LR_MMCSD_MASK; | |
| 26 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_PMC1LR); | |
| 27 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_PMC1HR); | |
| 28 | val &= ~U300_SYSCON_PMC1HR_APP_GPIO_1_MASK; | |
| 29 | val |= U300_SYSCON_PMC1HR_APP_GPIO_1_MMC; | |
| 30 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_PMC1HR); | |
| 31 | } | |
| 32 | ||
| 33 | void pmx_set_mission_mode_spi(void) | |
| 34 | { | |
| 35 | u16 val; | |
| 36 | ||
| 37 | /* Set up padmuxing so the SPI port and its chipselects are active */ | |
| 38 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_PMC1HR); | |
| 39 | /* | |
| 40 | * Activate the SPI port (disable the use of these pins for generic | |
| 41 | * GPIO, DSP, AAIF | |
| 42 | */ | |
| 43 | val &= ~U300_SYSCON_PMC1HR_APP_SPI_2_MASK; | |
| 44 | val |= U300_SYSCON_PMC1HR_APP_SPI_2_SPI; | |
| 45 | /* | |
| 46 | * Use GPIO pin SPI CS1 for CS1 actually (it can be used for other | |
| 47 | * things also) | |
| 48 | */ | |
| 49 | val &= ~U300_SYSCON_PMC1HR_APP_SPI_CS_1_MASK; | |
| 50 | val |= U300_SYSCON_PMC1HR_APP_SPI_CS_1_SPI; | |
| 51 | /* | |
| 52 | * Use GPIO pin SPI CS2 for CS2 actually (it can be used for other | |
| 53 | * things also) | |
| 54 | */ | |
| 55 | val &= ~U300_SYSCON_PMC1HR_APP_SPI_CS_2_MASK; | |
| 56 | val |= U300_SYSCON_PMC1HR_APP_SPI_CS_2_SPI; | |
| 57 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_PMC1HR); | |
| 58 | } |