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https://github.com/torvalds/linux.git
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106 lines
2.3 KiB
C
106 lines
2.3 KiB
C
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/*
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* linux/arch/arm/mach-sa1100/jornada720.c
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/tty.h>
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#include <linux/delay.h>
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#include <linux/device.h>
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#include <linux/ioport.h>
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#include <asm/hardware.h>
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#include <asm/hardware/sa1111.h>
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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#include <asm/setup.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/serial_sa1100.h>
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#include "generic.h"
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#define JORTUCR_VAL 0x20000400
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static struct resource sa1111_resources[] = {
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[0] = {
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.start = 0x40000000,
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.end = 0x40001fff,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_GPIO1,
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.end = IRQ_GPIO1,
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.flags = IORESOURCE_IRQ,
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},
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};
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static u64 sa1111_dmamask = 0xffffffffUL;
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static struct platform_device sa1111_device = {
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.name = "sa1111",
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.id = 0,
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.dev = {
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.dma_mask = &sa1111_dmamask,
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.coherent_dma_mask = 0xffffffff,
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},
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.num_resources = ARRAY_SIZE(sa1111_resources),
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.resource = sa1111_resources,
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};
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static struct platform_device *devices[] __initdata = {
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&sa1111_device,
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};
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static int __init jornada720_init(void)
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{
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int ret = -ENODEV;
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if (machine_is_jornada720()) {
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GPDR |= GPIO_GPIO20;
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TUCR = JORTUCR_VAL; /* set the oscillator out to the SA-1101 */
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GPSR = GPIO_GPIO20;
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udelay(1);
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GPCR = GPIO_GPIO20;
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udelay(1);
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GPSR = GPIO_GPIO20;
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udelay(20);
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/* LDD4 is speaker, LDD3 is microphone */
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PPSR &= ~(PPC_LDD3 | PPC_LDD4);
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PPDR |= PPC_LDD3 | PPC_LDD4;
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ret = platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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return ret;
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}
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arch_initcall(jornada720_init);
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static struct map_desc jornada720_io_desc[] __initdata = {
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/* virtual physical length type */
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{ 0xf0000000, 0x48000000, 0x00100000, MT_DEVICE }, /* Epson registers */
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{ 0xf1000000, 0x48200000, 0x00100000, MT_DEVICE }, /* Epson frame buffer */
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{ 0xf4000000, 0x40000000, 0x00100000, MT_DEVICE } /* SA-1111 */
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};
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static void __init jornada720_map_io(void)
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{
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sa1100_map_io();
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iotable_init(jornada720_io_desc, ARRAY_SIZE(jornada720_io_desc));
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sa1100_register_uart(0, 3);
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sa1100_register_uart(1, 1);
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}
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MACHINE_START(JORNADA720, "HP Jornada 720")
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BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
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BOOT_PARAMS(0xc0000100)
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MAPIO(jornada720_map_io)
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INITIRQ(sa1100_init_irq)
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.timer = &sa1100_timer,
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MACHINE_END
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