diff options
Diffstat (limited to 'arch/arm/plat-s3c24xx')
| -rw-r--r-- | arch/arm/plat-s3c24xx/Kconfig | 7 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/simtec-audio.c | 77 |
3 files changed, 85 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c24xx/Kconfig b/arch/arm/plat-s3c24xx/Kconfig index 9c7aca48964..20fbf936bb9 100644 --- a/arch/arm/plat-s3c24xx/Kconfig +++ b/arch/arm/plat-s3c24xx/Kconfig @@ -178,4 +178,11 @@ config MACH_SMDK help Common machine code for SMDK2410 and SMDK2440 +config S3C24XX_SIMTEC_AUDIO + bool + depends on (ARCH_BAST || MACH_VR1000 || MACH_OSIRIS || MACH_ANUBIS) + default y + help + Add audio devices for common Simtec S3C24XX boards + endif diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile index 7780d2dd833..5dee8c12e8b 100644 --- a/arch/arm/plat-s3c24xx/Makefile +++ b/arch/arm/plat-s3c24xx/Makefile @@ -55,3 +55,4 @@ obj-$(CONFIG_S3C24XX_SPI_BUS1_GPD8_GPD9_GPD10) += spi-bus1-gpd8_9_10.o # machine common support obj-$(CONFIG_MACH_SMDK) += common-smdk.o +obj-$(CONFIG_S3C24XX_SIMTEC_AUDIO) += simtec-audio.o diff --git a/arch/arm/plat-s3c24xx/simtec-audio.c b/arch/arm/plat-s3c24xx/simtec-audio.c new file mode 100644 index 00000000000..6bc832e0d8e --- /dev/null +++ b/arch/arm/plat-s3c24xx/simtec-audio.c @@ -0,0 +1,77 @@ +/* linux/arch/arm/plat-s3c24xx/simtec-audio.c + * + * Copyright (c) 2009 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * Audio setup for various Simtec S3C24XX implementations + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/io.h> + +#include <mach/bast-map.h> +#include <mach/bast-irq.h> +#include <mach/bast-cpld.h> + +#include <mach/hardware.h> +#include <mach/regs-gpio.h> + +#include <plat/audio-simtec.h> +#include <plat/devs.h> + +/* platform ops for audio */ + +static void simtec_audio_startup_lrroute(void) +{ + unsigned int tmp; + unsigned long flags; + + local_irq_save(flags); + + tmp = __raw_readb(BAST_VA_CTRL1); + tmp &= ~BAST_CPLD_CTRL1_LRMASK; + tmp |= BAST_CPLD_CTRL1_LRCDAC; + __raw_writeb(tmp, BAST_VA_CTRL1); + + local_irq_restore(flags); +} + +static struct s3c24xx_audio_simtec_pdata simtec_audio_platdata; +static char our_name[32]; + +static struct platform_device simtec_audio_dev = { + .name = our_name, + .id = -1, + .dev = { + .parent = &s3c_device_iis.dev, + .platform_data = &simtec_audio_platdata, + }, +}; + +int __init simtec_audio_add(const char *name, bool has_lr_routing, + struct s3c24xx_audio_simtec_pdata *spd) +{ + if (!name) + name = "tlv320aic23"; + + snprintf(our_name, sizeof(our_name)-1, "s3c24xx-simtec-%s", name); + + /* copy platform data so the source can be __initdata */ + if (spd) + simtec_audio_platdata = *spd; + + if (has_lr_routing) + simtec_audio_platdata.startup = simtec_audio_startup_lrroute; + + platform_device_register(&s3c_device_iis); + platform_device_register(&simtec_audio_dev); + return 0; +} |