summaryrefslogtreecommitdiff
path: root/arch/arm/mach-ep93xx/core.c
diff options
context:
space:
mode:
authorArnd Bergmann <arnd@arndb.de>2012-03-15 15:19:05 +0000
committerArnd Bergmann <arnd@arndb.de>2012-03-15 15:20:07 +0000
commitf4e2467bad53023589cbff18dd1ab6e0aa3f004c (patch)
tree8d7abbf418eabd25bbcdc9b6de2f8216d2eaa616 /arch/arm/mach-ep93xx/core.c
parente3643b77de143c5548ec93abd8aa68f4123295ea (diff)
parenta6de3df4f172e124280d88e617ee7d29f7af970b (diff)
Merge branch 'ep93xx-for-arm-soc' of git://github.com/RyanMallon/linux-2.6 into next/cleanup
* 'ep93xx-for-arm-soc' of git://github.com/RyanMallon/linux-2.6: ep93xx: Remove unnecessary includes of ep93xx-regs.h ep93xx: Move EP93XX_SYSCON defines to SoC private header ep93xx: Move crunch code to mach-ep93xx directory ep93xx: Make syscon access functions private to SoC ep93xx: Configure GPIO ports in core code ep93xx: Move peripheral defines to local SoC header ep93xx: Convert the watchdog driver into a platform device. ep93xx: Use ioremap for backlight driver ep93xx: Move GPIO defines to gpio-ep93xx.h ep93xx: Don't use system controller defines in audio drivers ep93xx: Move PHYS_BASE defines to local SoC header file (update to v3.3-rc7) Conflicts: arch/arm/mach-s3c2440/common.h
Diffstat (limited to 'arch/arm/mach-ep93xx/core.c')
-rw-r--r--arch/arm/mach-ep93xx/core.c54
1 files changed, 37 insertions, 17 deletions
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 903edb02fe4f..8d2589588713 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -46,6 +46,7 @@
#include <asm/hardware/vic.h>
+#include "soc.h"
/*************************************************************************
* Static I/O mappings that are needed for all EP93xx platforms
@@ -204,7 +205,6 @@ void ep93xx_syscon_swlocked_write(unsigned int val, void __iomem *reg)
spin_unlock_irqrestore(&syscon_swlock, flags);
}
-EXPORT_SYMBOL(ep93xx_syscon_swlocked_write);
void ep93xx_devcfg_set_clear(unsigned int set_bits, unsigned int clear_bits)
{
@@ -221,7 +221,6 @@ void ep93xx_devcfg_set_clear(unsigned int set_bits, unsigned int clear_bits)
spin_unlock_irqrestore(&syscon_swlock, flags);
}
-EXPORT_SYMBOL(ep93xx_devcfg_set_clear);
/**
* ep93xx_chip_revision() - returns the EP93xx chip revision
@@ -648,9 +647,19 @@ static struct platform_device ep93xx_fb_device = {
.resource = ep93xx_fb_resource,
};
+/* The backlight use a single register in the framebuffer's register space */
+#define EP93XX_RASTER_REG_BRIGHTNESS 0x20
+
+static struct resource ep93xx_bl_resources[] = {
+ DEFINE_RES_MEM(EP93XX_RASTER_PHYS_BASE +
+ EP93XX_RASTER_REG_BRIGHTNESS, 0x04),
+};
+
static struct platform_device ep93xx_bl_device = {
.name = "ep93xx-bl",
.id = -1,
+ .num_resources = ARRAY_SIZE(ep93xx_bl_resources),
+ .resource = ep93xx_bl_resources,
};
/**
@@ -783,23 +792,12 @@ void __init ep93xx_register_i2s(void)
#define EP93XX_I2SCLKDIV_MASK (EP93XX_SYSCON_I2SCLKDIV_ORIDE | \
EP93XX_SYSCON_I2SCLKDIV_SPOL)
-int ep93xx_i2s_acquire(unsigned i2s_pins, unsigned i2s_config)
+int ep93xx_i2s_acquire(void)
{
unsigned val;
- /* Sanity check */
- if (i2s_pins & ~EP93XX_SYSCON_DEVCFG_I2S_MASK)
- return -EINVAL;
- if (i2s_config & ~EP93XX_I2SCLKDIV_MASK)
- return -EINVAL;
-
- /* Must have only one of I2SONSSP/I2SONAC97 set */
- if ((i2s_pins & EP93XX_SYSCON_DEVCFG_I2SONSSP) ==
- (i2s_pins & EP93XX_SYSCON_DEVCFG_I2SONAC97))
- return -EINVAL;
-
- ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2S_MASK);
- ep93xx_devcfg_set_bits(i2s_pins);
+ ep93xx_devcfg_set_clear(EP93XX_SYSCON_DEVCFG_I2SONAC97,
+ EP93XX_SYSCON_DEVCFG_I2S_MASK);
/*
* This is potentially racy with the clock api for i2s_mclk, sclk and
@@ -809,7 +807,7 @@ int ep93xx_i2s_acquire(unsigned i2s_pins, unsigned i2s_config)
*/
val = __raw_readl(EP93XX_SYSCON_I2SCLKDIV);
val &= ~EP93XX_I2SCLKDIV_MASK;
- val |= i2s_config;
+ val |= EP93XX_SYSCON_I2SCLKDIV_ORIDE | EP93XX_SYSCON_I2SCLKDIV_SPOL;
ep93xx_syscon_swlocked_write(val, EP93XX_SYSCON_I2SCLKDIV);
return 0;
@@ -856,11 +854,32 @@ void __init ep93xx_register_ac97(void)
platform_device_register(&ep93xx_pcm_device);
}
+/*************************************************************************
+ * EP93xx Watchdog
+ *************************************************************************/
+static struct resource ep93xx_wdt_resources[] = {
+ DEFINE_RES_MEM(EP93XX_WATCHDOG_PHYS_BASE, 0x08),
+};
+
+static struct platform_device ep93xx_wdt_device = {
+ .name = "ep93xx-wdt",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(ep93xx_wdt_resources),
+ .resource = ep93xx_wdt_resources,
+};
+
void __init ep93xx_init_devices(void)
{
/* Disallow access to MaverickCrunch initially */
ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_CPENA);
+ /* Default all ports to GPIO */
+ ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_KEYS |
+ EP93XX_SYSCON_DEVCFG_GONK |
+ EP93XX_SYSCON_DEVCFG_EONIDE |
+ EP93XX_SYSCON_DEVCFG_GONIDE |
+ EP93XX_SYSCON_DEVCFG_HONIDE);
+
/* Get the GPIO working early, other devices need it */
platform_device_register(&ep93xx_gpio_device);
@@ -871,6 +890,7 @@ void __init ep93xx_init_devices(void)
platform_device_register(&ep93xx_rtc_device);
platform_device_register(&ep93xx_ohci_device);
platform_device_register(&ep93xx_leds);
+ platform_device_register(&ep93xx_wdt_device);
}
void ep93xx_restart(char mode, const char *cmd)