jornada720.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/jornada720.c
- */
- #include <linux/init.h>
- #include <linux/kernel.h>
- #include <linux/tty.h>
- #include <linux/delay.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"
- #include "sa1111.h"
- #define JORTUCR_VAL 0x20000400
- #define JORSKCR_INIT 0x00002081 /* Turn off VCO to enable PLL, set Ready En and enable nOE assertion from DC */
- #define JORSKCR_RCLK 0x00002083 /* Add turning on RCLK to above */
- #define JORSKCR_VAL 0x0000001B /* sets the 1101 control register to on */
- static int __init jornada720_init(void)
- {
- GPDR |= GPIO_GPIO20;
- TUCR = JORTUCR_VAL; /* set the oscillator out to the SA-1101 */
- GPSR = GPIO_GPIO20;
- udelay(1);
- GPCR = GPIO_GPIO20;
- udelay(1);
- GPSR = GPIO_GPIO20;
- udelay(20);
- SKCR = JORSKCR_INIT; /* Turn on the PLL, enable Ready and enable nOE assertion from DC */
- mdelay(100);
- SBI_SKCR = JORSKCR_RCLK;/* turn on the RCLOCK */
- SBI_SMCR = 0x35; /* initialize the SMC (debug SA-1111 reset */
- PCCR = 0; /* initialize the S2MC (debug SA-1111 reset) */
- /* LDD4 is speaker, LDD3 is microphone */
- PPSR &= ~(PPC_LDD3 | PPC_LDD4);
- PPDR |= PPC_LDD3 | PPC_LDD4;
- /* initialize extra IRQs */
- set_GPIO_IRQ_edge(GPIO_GPIO1, GPIO_RISING_EDGE);
- sa1111_init_irq(IRQ_GPIO1); /* chained on GPIO 1 */
- return 0;
- }
- __initcall(jornada720_init);
- static void __init
- fixup_jornada720(struct machine_desc *desc, struct param_struct *params,
- char **cmdline, struct meminfo *mi)
- {
- SET_BANK( 0, 0xc0000000, 32*1024*1024 );
- mi->nr_banks = 1;
- }
- static struct map_desc jornada720_io_desc[] __initdata = {
- /* virtual physical length domain r w c b */
- { 0xe8000000, 0x00000000, 0x02000000, DOMAIN_IO, 0, 1, 0, 0 }, /* Flash bank 0 */
- { 0xf0000000, 0x48000000, 0x00100000, DOMAIN_IO, 0, 1, 0, 0 }, /* Epson registers */
- { 0xf1000000, 0x48200000, 0x00100000, DOMAIN_IO, 0, 1, 0, 0 }, /* Epson frame buffer */
- { 0xf4000000, 0x40000000, 0x00100000, DOMAIN_IO, 0, 1, 0, 0 }, /* SA-1111 */
- LAST_DESC
- };
- static void __init jornada720_map_io(void)
- {
- sa1100_map_io();
- iotable_init(jornada720_io_desc);
-
- sa1100_register_uart(0, 3);
- sa1100_register_uart(1, 1);
- }
- MACHINE_START(JORNADA720, "HP Jornada 720")
- BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
- BOOT_PARAMS(0xc0000100)
- FIXUP(fixup_jornada720)
- MAPIO(jornada720_map_io)
- INITIRQ(sa1100_init_irq)
- MACHINE_END