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Diffstat (limited to 'arch/arm/mach-lpc32xx/common.c')
-rw-r--r--arch/arm/mach-lpc32xx/common.c112
1 files changed, 43 insertions, 69 deletions
diff --git a/arch/arm/mach-lpc32xx/common.c b/arch/arm/mach-lpc32xx/common.c
index ee24dc28e93..de03620d7fa 100644
--- a/arch/arm/mach-lpc32xx/common.c
+++ b/arch/arm/mach-lpc32xx/common.c
@@ -26,76 +26,13 @@
#include <linux/io.h>
#include <asm/mach/map.h>
+#include <asm/system_info.h>
-#include <mach/i2c.h>
#include <mach/hardware.h>
#include <mach/platform.h>
#include "common.h"
/*
- * Watchdog timer
- */
-static struct resource watchdog_resources[] = {
- [0] = {
- .start = LPC32XX_WDTIM_BASE,
- .end = LPC32XX_WDTIM_BASE + SZ_4K - 1,
- .flags = IORESOURCE_MEM,
- },
-};
-
-struct platform_device lpc32xx_watchdog_device = {
- .name = "pnx4008-watchdog",
- .id = -1,
- .num_resources = ARRAY_SIZE(watchdog_resources),
- .resource = watchdog_resources,
-};
-
-/*
- * I2C busses
- */
-static struct i2c_pnx_data i2c0_data = {
- .name = I2C_CHIP_NAME "1",
- .base = LPC32XX_I2C1_BASE,
- .irq = IRQ_LPC32XX_I2C_1,
-};
-
-static struct i2c_pnx_data i2c1_data = {
- .name = I2C_CHIP_NAME "2",
- .base = LPC32XX_I2C2_BASE,
- .irq = IRQ_LPC32XX_I2C_2,
-};
-
-static struct i2c_pnx_data i2c2_data = {
- .name = "USB-I2C",
- .base = LPC32XX_OTG_I2C_BASE,
- .irq = IRQ_LPC32XX_USB_I2C,
-};
-
-struct platform_device lpc32xx_i2c0_device = {
- .name = "pnx-i2c",
- .id = 0,
- .dev = {
- .platform_data = &i2c0_data,
- },
-};
-
-struct platform_device lpc32xx_i2c1_device = {
- .name = "pnx-i2c",
- .id = 1,
- .dev = {
- .platform_data = &i2c1_data,
- },
-};
-
-struct platform_device lpc32xx_i2c2_device = {
- .name = "pnx-i2c",
- .id = 2,
- .dev = {
- .platform_data = &i2c2_data,
- },
-};
-
-/*
* Returns the unique ID for the device
*/
void lpc32xx_get_uid(u32 devid[4])
@@ -122,7 +59,7 @@ int clk_is_sysclk_mainosc(void)
/*
* System reset via the watchdog timer
*/
-void lpc32xx_watchdog_reset(void)
+static void lpc32xx_watchdog_reset(void)
{
/* Make sure WDT clocks are enabled */
__raw_writel(LPC32XX_CLKPWR_PWMCLK_WDOG_EN,
@@ -162,6 +99,7 @@ u32 lpc32xx_return_iram_size(void)
return iram_size;
}
+EXPORT_SYMBOL_GPL(lpc32xx_return_iram_size);
/*
* Computes PLL rate from PLL register and input clock
@@ -240,25 +178,25 @@ u32 clk_get_pclk_div(void)
static struct map_desc lpc32xx_io_desc[] __initdata = {
{
- .virtual = IO_ADDRESS(LPC32XX_AHB0_START),
+ .virtual = (unsigned long)IO_ADDRESS(LPC32XX_AHB0_START),
.pfn = __phys_to_pfn(LPC32XX_AHB0_START),
.length = LPC32XX_AHB0_SIZE,
.type = MT_DEVICE
},
{
- .virtual = IO_ADDRESS(LPC32XX_AHB1_START),
+ .virtual = (unsigned long)IO_ADDRESS(LPC32XX_AHB1_START),
.pfn = __phys_to_pfn(LPC32XX_AHB1_START),
.length = LPC32XX_AHB1_SIZE,
.type = MT_DEVICE
},
{
- .virtual = IO_ADDRESS(LPC32XX_FABAPB_START),
+ .virtual = (unsigned long)IO_ADDRESS(LPC32XX_FABAPB_START),
.pfn = __phys_to_pfn(LPC32XX_FABAPB_START),
.length = LPC32XX_FABAPB_SIZE,
.type = MT_DEVICE
},
{
- .virtual = IO_ADDRESS(LPC32XX_IRAM_BASE),
+ .virtual = (unsigned long)IO_ADDRESS(LPC32XX_IRAM_BASE),
.pfn = __phys_to_pfn(LPC32XX_IRAM_BASE),
.length = (LPC32XX_IRAM_BANK_SIZE * 2),
.type = MT_DEVICE
@@ -269,3 +207,39 @@ void __init lpc32xx_map_io(void)
{
iotable_init(lpc32xx_io_desc, ARRAY_SIZE(lpc32xx_io_desc));
}
+
+void lpc23xx_restart(enum reboot_mode mode, const char *cmd)
+{
+ switch (mode) {
+ case REBOOT_SOFT:
+ case REBOOT_HARD:
+ lpc32xx_watchdog_reset();
+ break;
+
+ default:
+ /* Do nothing */
+ break;
+ }
+
+ /* Wait for watchdog to reset system */
+ while (1)
+ ;
+}
+
+static int __init lpc32xx_check_uid(void)
+{
+ u32 uid[4];
+
+ lpc32xx_get_uid(uid);
+
+ printk(KERN_INFO "LPC32XX unique ID: %08x%08x%08x%08x\n",
+ uid[3], uid[2], uid[1], uid[0]);
+
+ if (!system_serial_low && !system_serial_high) {
+ system_serial_low = uid[0];
+ system_serial_high = uid[1];
+ }
+
+ return 1;
+}
+arch_initcall(lpc32xx_check_uid);