523 lines
12 KiB
C
523 lines
12 KiB
C
/*
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* linux/arch/arm/mach-pxa/lpd270.c
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*
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* Support for the LogicPD PXA270 Card Engine.
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* Derived from the mainstone code, which carries these notices:
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*
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* Author: Nicolas Pitre
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* Created: Nov 05, 2002
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* Copyright: MontaVista Software Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/gpio.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/syscore_ops.h>
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#include <linux/interrupt.h>
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#include <linux/sched.h>
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#include <linux/bitops.h>
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#include <linux/fb.h>
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#include <linux/ioport.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/pwm.h>
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#include <linux/pwm_backlight.h>
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#include <linux/smc91x.h>
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#include <asm/types.h>
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#include <asm/setup.h>
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#include <asm/memory.h>
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#include <asm/mach-types.h>
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#include <mach/hardware.h>
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#include <asm/irq.h>
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#include <asm/sizes.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/irq.h>
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#include <asm/mach/flash.h>
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#include "pxa27x.h"
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#include "lpd270.h"
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#include <mach/audio.h>
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#include <linux/platform_data/video-pxafb.h>
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#include <linux/platform_data/mmc-pxamci.h>
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#include <linux/platform_data/irda-pxaficp.h>
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#include <linux/platform_data/usb-ohci-pxa27x.h>
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#include <mach/smemc.h>
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#include "generic.h"
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#include "devices.h"
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static unsigned long lpd270_pin_config[] __initdata = {
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/* Chip Selects */
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GPIO15_nCS_1, /* Mainboard Flash */
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GPIO78_nCS_2, /* CPLD + Ethernet */
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/* LCD - 16bpp Active TFT */
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GPIO58_LCD_LDD_0,
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GPIO59_LCD_LDD_1,
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GPIO60_LCD_LDD_2,
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GPIO61_LCD_LDD_3,
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GPIO62_LCD_LDD_4,
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GPIO63_LCD_LDD_5,
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GPIO64_LCD_LDD_6,
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GPIO65_LCD_LDD_7,
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GPIO66_LCD_LDD_8,
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GPIO67_LCD_LDD_9,
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GPIO68_LCD_LDD_10,
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GPIO69_LCD_LDD_11,
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GPIO70_LCD_LDD_12,
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GPIO71_LCD_LDD_13,
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GPIO72_LCD_LDD_14,
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GPIO73_LCD_LDD_15,
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GPIO74_LCD_FCLK,
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GPIO75_LCD_LCLK,
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GPIO76_LCD_PCLK,
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GPIO77_LCD_BIAS,
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GPIO16_PWM0_OUT, /* Backlight */
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/* USB Host */
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GPIO88_USBH1_PWR,
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GPIO89_USBH1_PEN,
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/* AC97 */
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GPIO28_AC97_BITCLK,
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GPIO29_AC97_SDATA_IN_0,
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GPIO30_AC97_SDATA_OUT,
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GPIO31_AC97_SYNC,
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GPIO45_AC97_SYSCLK,
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GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
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};
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static unsigned int lpd270_irq_enabled;
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static void lpd270_mask_irq(struct irq_data *d)
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{
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int lpd270_irq = d->irq - LPD270_IRQ(0);
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__raw_writew(~(1 << lpd270_irq), LPD270_INT_STATUS);
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lpd270_irq_enabled &= ~(1 << lpd270_irq);
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__raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
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}
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static void lpd270_unmask_irq(struct irq_data *d)
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{
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int lpd270_irq = d->irq - LPD270_IRQ(0);
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lpd270_irq_enabled |= 1 << lpd270_irq;
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__raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
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}
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static struct irq_chip lpd270_irq_chip = {
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.name = "CPLD",
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.irq_ack = lpd270_mask_irq,
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.irq_mask = lpd270_mask_irq,
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.irq_unmask = lpd270_unmask_irq,
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};
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static void lpd270_irq_handler(struct irq_desc *desc)
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{
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unsigned int irq;
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unsigned long pending;
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pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled;
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do {
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/* clear useless edge notification */
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desc->irq_data.chip->irq_ack(&desc->irq_data);
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if (likely(pending)) {
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irq = LPD270_IRQ(0) + __ffs(pending);
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generic_handle_irq(irq);
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pending = __raw_readw(LPD270_INT_STATUS) &
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lpd270_irq_enabled;
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}
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} while (pending);
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}
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static void __init lpd270_init_irq(void)
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{
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int irq;
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pxa27x_init_irq();
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__raw_writew(0, LPD270_INT_MASK);
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__raw_writew(0, LPD270_INT_STATUS);
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/* setup extra LogicPD PXA270 irqs */
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for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) {
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irq_set_chip_and_handler(irq, &lpd270_irq_chip,
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handle_level_irq);
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irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
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}
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irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lpd270_irq_handler);
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irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
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}
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#ifdef CONFIG_PM
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static void lpd270_irq_resume(void)
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{
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__raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
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}
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static struct syscore_ops lpd270_irq_syscore_ops = {
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.resume = lpd270_irq_resume,
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};
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static int __init lpd270_irq_device_init(void)
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{
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if (machine_is_logicpd_pxa270()) {
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register_syscore_ops(&lpd270_irq_syscore_ops);
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return 0;
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}
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return -ENODEV;
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}
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device_initcall(lpd270_irq_device_init);
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#endif
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static struct resource smc91x_resources[] = {
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[0] = {
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.start = LPD270_ETH_PHYS,
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.end = (LPD270_ETH_PHYS + 0xfffff),
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = LPD270_ETHERNET_IRQ,
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.end = LPD270_ETHERNET_IRQ,
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
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},
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};
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struct smc91x_platdata smc91x_platdata = {
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.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
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};
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static struct platform_device smc91x_device = {
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.name = "smc91x",
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.id = 0,
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.num_resources = ARRAY_SIZE(smc91x_resources),
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.resource = smc91x_resources,
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.dev.platform_data = &smc91x_platdata,
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};
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static struct resource lpd270_flash_resources[] = {
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[0] = {
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.start = PXA_CS0_PHYS,
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.end = PXA_CS0_PHYS + SZ_64M - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = PXA_CS1_PHYS,
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.end = PXA_CS1_PHYS + SZ_64M - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct mtd_partition lpd270_flash0_partitions[] = {
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{
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.name = "Bootloader",
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.size = 0x00040000,
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.offset = 0,
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.mask_flags = MTD_WRITEABLE /* force read-only */
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}, {
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.name = "Kernel",
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.size = 0x00400000,
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.offset = 0x00040000,
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}, {
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.name = "Filesystem",
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.size = MTDPART_SIZ_FULL,
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.offset = 0x00440000
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},
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};
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static struct flash_platform_data lpd270_flash_data[2] = {
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{
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.name = "processor-flash",
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.map_name = "cfi_probe",
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.parts = lpd270_flash0_partitions,
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.nr_parts = ARRAY_SIZE(lpd270_flash0_partitions),
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}, {
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.name = "mainboard-flash",
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.map_name = "cfi_probe",
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.parts = NULL,
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.nr_parts = 0,
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}
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};
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static struct platform_device lpd270_flash_device[2] = {
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{
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.name = "pxa2xx-flash",
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.id = 0,
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.dev = {
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.platform_data = &lpd270_flash_data[0],
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},
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.resource = &lpd270_flash_resources[0],
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.num_resources = 1,
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}, {
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.name = "pxa2xx-flash",
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.id = 1,
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.dev = {
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.platform_data = &lpd270_flash_data[1],
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},
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.resource = &lpd270_flash_resources[1],
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.num_resources = 1,
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},
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};
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static struct pwm_lookup lpd270_pwm_lookup[] = {
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PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 78770,
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PWM_POLARITY_NORMAL),
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};
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static struct platform_pwm_backlight_data lpd270_backlight_data = {
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.max_brightness = 1,
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.dft_brightness = 1,
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.enable_gpio = -1,
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};
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static struct platform_device lpd270_backlight_device = {
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.name = "pwm-backlight",
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.dev = {
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.parent = &pxa27x_device_pwm0.dev,
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.platform_data = &lpd270_backlight_data,
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},
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};
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/* 5.7" TFT QVGA (LoLo display number 1) */
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static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
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.pixclock = 150000,
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.xres = 320,
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.yres = 240,
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.bpp = 16,
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.hsync_len = 0x14,
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.left_margin = 0x28,
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.right_margin = 0x0a,
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.vsync_len = 0x02,
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.upper_margin = 0x08,
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.lower_margin = 0x14,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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};
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static struct pxafb_mach_info sharp_lq057q3dc02 = {
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.modes = &sharp_lq057q3dc02_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
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LCD_ALTERNATE_MAPPING,
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};
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/* 12.1" TFT SVGA (LoLo display number 2) */
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static struct pxafb_mode_info sharp_lq121s1dg31_mode = {
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.pixclock = 50000,
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.xres = 800,
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.yres = 600,
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.bpp = 16,
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.hsync_len = 0x05,
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.left_margin = 0x52,
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.right_margin = 0x05,
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.vsync_len = 0x04,
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.upper_margin = 0x14,
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.lower_margin = 0x0a,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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};
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static struct pxafb_mach_info sharp_lq121s1dg31 = {
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.modes = &sharp_lq121s1dg31_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
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LCD_ALTERNATE_MAPPING,
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};
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/* 3.6" TFT QVGA (LoLo display number 3) */
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static struct pxafb_mode_info sharp_lq036q1da01_mode = {
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.pixclock = 150000,
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.xres = 320,
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.yres = 240,
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.bpp = 16,
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.hsync_len = 0x0e,
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.left_margin = 0x04,
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.right_margin = 0x0a,
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.vsync_len = 0x03,
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.upper_margin = 0x03,
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.lower_margin = 0x03,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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};
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static struct pxafb_mach_info sharp_lq036q1da01 = {
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.modes = &sharp_lq036q1da01_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
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LCD_ALTERNATE_MAPPING,
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};
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/* 6.4" TFT VGA (LoLo display number 5) */
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static struct pxafb_mode_info sharp_lq64d343_mode = {
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.pixclock = 25000,
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.xres = 640,
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.yres = 480,
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.bpp = 16,
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.hsync_len = 0x31,
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.left_margin = 0x89,
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.right_margin = 0x19,
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.vsync_len = 0x12,
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.upper_margin = 0x22,
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.lower_margin = 0x00,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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};
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static struct pxafb_mach_info sharp_lq64d343 = {
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.modes = &sharp_lq64d343_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
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LCD_ALTERNATE_MAPPING,
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};
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/* 10.4" TFT VGA (LoLo display number 7) */
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static struct pxafb_mode_info sharp_lq10d368_mode = {
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.pixclock = 25000,
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.xres = 640,
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.yres = 480,
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.bpp = 16,
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.hsync_len = 0x31,
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.left_margin = 0x89,
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.right_margin = 0x19,
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.vsync_len = 0x12,
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.upper_margin = 0x22,
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.lower_margin = 0x00,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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};
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static struct pxafb_mach_info sharp_lq10d368 = {
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.modes = &sharp_lq10d368_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
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LCD_ALTERNATE_MAPPING,
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};
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/* 3.5" TFT QVGA (LoLo display number 8) */
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static struct pxafb_mode_info sharp_lq035q7db02_20_mode = {
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.pixclock = 150000,
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.xres = 240,
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.yres = 320,
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.bpp = 16,
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.hsync_len = 0x0e,
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.left_margin = 0x0a,
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.right_margin = 0x0a,
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.vsync_len = 0x03,
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.upper_margin = 0x05,
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.lower_margin = 0x14,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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};
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static struct pxafb_mach_info sharp_lq035q7db02_20 = {
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.modes = &sharp_lq035q7db02_20_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
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LCD_ALTERNATE_MAPPING,
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};
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static struct pxafb_mach_info *lpd270_lcd_to_use;
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static int __init lpd270_set_lcd(char *str)
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{
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if (!strncasecmp(str, "lq057q3dc02", 11)) {
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lpd270_lcd_to_use = &sharp_lq057q3dc02;
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} else if (!strncasecmp(str, "lq121s1dg31", 11)) {
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lpd270_lcd_to_use = &sharp_lq121s1dg31;
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} else if (!strncasecmp(str, "lq036q1da01", 11)) {
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lpd270_lcd_to_use = &sharp_lq036q1da01;
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} else if (!strncasecmp(str, "lq64d343", 8)) {
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lpd270_lcd_to_use = &sharp_lq64d343;
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} else if (!strncasecmp(str, "lq10d368", 8)) {
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lpd270_lcd_to_use = &sharp_lq10d368;
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} else if (!strncasecmp(str, "lq035q7db02-20", 14)) {
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lpd270_lcd_to_use = &sharp_lq035q7db02_20;
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} else {
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printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);
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}
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return 1;
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}
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__setup("lcd=", lpd270_set_lcd);
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static struct platform_device *platform_devices[] __initdata = {
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&smc91x_device,
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&lpd270_backlight_device,
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&lpd270_flash_device[0],
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&lpd270_flash_device[1],
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};
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static struct pxaohci_platform_data lpd270_ohci_platform_data = {
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.port_mode = PMM_PERPORT_MODE,
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.flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
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};
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static void __init lpd270_init(void)
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{
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pxa2xx_mfp_config(ARRAY_AND_SIZE(lpd270_pin_config));
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pxa_set_ffuart_info(NULL);
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pxa_set_btuart_info(NULL);
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pxa_set_stuart_info(NULL);
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lpd270_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
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lpd270_flash_data[1].width = 4;
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/*
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* System bus arbiter setting:
|
|
* - Core_Park
|
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* - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
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|
*/
|
|
ARB_CNTRL = ARB_CORE_PARK | 0x234;
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|
|
|
pwm_add_table(lpd270_pwm_lookup, ARRAY_SIZE(lpd270_pwm_lookup));
|
|
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
|
|
|
|
pxa_set_ac97_info(NULL);
|
|
|
|
if (lpd270_lcd_to_use != NULL)
|
|
pxa_set_fb_info(NULL, lpd270_lcd_to_use);
|
|
|
|
pxa_set_ohci_info(&lpd270_ohci_platform_data);
|
|
}
|
|
|
|
|
|
static struct map_desc lpd270_io_desc[] __initdata = {
|
|
{
|
|
.virtual = (unsigned long)LPD270_CPLD_VIRT,
|
|
.pfn = __phys_to_pfn(LPD270_CPLD_PHYS),
|
|
.length = LPD270_CPLD_SIZE,
|
|
.type = MT_DEVICE,
|
|
},
|
|
};
|
|
|
|
static void __init lpd270_map_io(void)
|
|
{
|
|
pxa27x_map_io();
|
|
iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc));
|
|
|
|
/* for use I SRAM as framebuffer. */
|
|
PSLR |= 0x00000F04;
|
|
PCFR = 0x00000066;
|
|
}
|
|
|
|
MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
|
|
/* Maintainer: Peter Barada */
|
|
.atag_offset = 0x100,
|
|
.map_io = lpd270_map_io,
|
|
.nr_irqs = LPD270_NR_IRQS,
|
|
.init_irq = lpd270_init_irq,
|
|
.handle_irq = pxa27x_handle_irq,
|
|
.init_time = pxa_timer_init,
|
|
.init_machine = lpd270_init,
|
|
.restart = pxa_restart,
|
|
MACHINE_END
|