yopy.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:2k
- /*
- * linux/arch/arm/mach-sa1100/yopy.c
- */
- #include <linux/module.h>
- #include <linux/init.h>
- #include <linux/kernel.h>
- #include <linux/tty.h>
- #include <asm/hardware.h>
- #include <asm/setup.h>
- #include <asm/mach/arch.h>
- #include <asm/mach/map.h>
- #include <asm/mach/serial_sa1100.h>
- #include "generic.h"
- static spinlock_t egpio_lock = SPIN_LOCK_UNLOCKED;
- static unsigned long yopy_egpio =
- GPIO_MASK(GPIO_CF_RESET) |
- GPIO_MASK(GPIO_CLKDIV_CLR1) | GPIO_MASK(GPIO_CLKDIV_CLR2) |
- GPIO_MASK(GPIO_SPEAKER_MUTE) | GPIO_MASK(GPIO_AUDIO_OPAMP_POWER);
- int yopy_gpio_test(unsigned int gpio)
- {
- return ((yopy_egpio & (1 << gpio)) != 0);
- }
- void yopy_gpio_set(unsigned int gpio, int level)
- {
- unsigned long flags, mask;
- mask = 1 << gpio;
- spin_lock_irqsave(&egpio_lock, flags);
- if (level)
- yopy_egpio |= mask;
- else
- yopy_egpio &= ~mask;
- YOPY_EGPIO = yopy_egpio;
- spin_unlock_irqrestore(&egpio_lock, flags);
- }
- EXPORT_SYMBOL(yopy_gpio_test);
- EXPORT_SYMBOL(yopy_gpio_set);
- static int __init yopy_hw_init(void)
- {
- if (machine_is_yopy()) {
- YOPY_EGPIO = yopy_egpio;
- /* Enable Output */
- PPDR |= PPC_L_BIAS;
- PSDR &= ~PPC_L_BIAS;
- PPSR |= PPC_L_BIAS;
- YOPY_EGPIO = yopy_egpio;
- }
- return 0;
- }
- __initcall(yopy_hw_init);
- static struct map_desc yopy_io_desc[] __initdata = {
- /* virtual physical length domain r w c b */
- { 0xe8000000, 0x00000000, 0x04000000, DOMAIN_IO, 0, 1, 0, 0 }, /* Flash 0 */
- { 0xec000000, 0x08000000, 0x04000000, DOMAIN_IO, 0, 1, 0, 0 }, /* Flash 1 */
- { 0xf0000000, 0x48000000, 0x00300000, DOMAIN_IO, 0, 1, 0, 0 }, /* LCD */
- { 0xf1000000, 0x10000000, 0x00100000, DOMAIN_IO, 0, 1, 0, 0 }, /* EGPIO */
- LAST_DESC
- };
- static void __init yopy_map_io(void)
- {
- sa1100_map_io();
- iotable_init(yopy_io_desc);
- sa1100_register_uart(0, 3);
- set_GPIO_IRQ_edge(GPIO_UCB1200_IRQ, GPIO_RISING_EDGE);
- }
- MACHINE_START(YOPY, "Yopy")
- MAINTAINER("G.Mate, Inc.")
- BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
- BOOT_PARAMS(0xc0000100)
- MAPIO(yopy_map_io)
- INITIRQ(sa1100_init_irq)
- MACHINE_END