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kernel_optimize_test/arch/arm/mach-pxa/lubbock.c
Sebastian Andrzej Siewior 8348c259dd arm/pxa2xx: reorgazine SSP and SPI header files 
The PXA-SPI driver relies on some files / defines which are arm specific
and are within the ARM tree. The CE4100 SoC which is x86 has also the
SPI core.
This patch moves the ssp and spi files from arm/mach-pxa and plat-pxa to
include/linux where the CE4100 can access them.

This move got verified by building the following defconfigs:
   cm_x2xx_defconfig corgi_defconfig em_x270_defconfig ezx_defconfig
   imote2_defconfig pxa3xx_defconfig spitz_defconfig zeus_defconfig
   raumfeld_defconfig magician_defconfig

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
2010-12-01 12:18:33 +01:00

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/*
* linux/arch/arm/mach-pxa/lubbock.c
*
* Support for the Intel DBPXA250 Development Platform.
*
* Author: Nicolas Pitre
* Created: Jun 15, 2001
* Copyright: MontaVista Software Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <linux/major.h>
#include <linux/fb.h>
#include <linux/interrupt.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/smc91x.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/spi/pxa2xx_spi.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/sizes.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/mach/flash.h>
#include <asm/hardware/sa1111.h>
#include <mach/pxa25x.h>
#include <mach/gpio.h>
#include <mach/audio.h>
#include <mach/lubbock.h>
#include <mach/udc.h>
#include <mach/irda.h>
#include <mach/pxafb.h>
#include <mach/mmc.h>
#include <mach/pm.h>
#include "generic.h"
#include "clock.h"
#include "devices.h"
static unsigned long lubbock_pin_config[] __initdata = {
GPIO15_nCS_1, /* CS1 - Flash */
GPIO78_nCS_2, /* CS2 - Baseboard FGPA */
GPIO79_nCS_3, /* CS3 - SMC ethernet */
GPIO80_nCS_4, /* CS4 - SA1111 */
/* SSP data pins */
GPIO23_SSP1_SCLK,
GPIO25_SSP1_TXD,
GPIO26_SSP1_RXD,
/* AC97 */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
/* LCD - 16bpp DSTN */
GPIOxx_LCD_DSTN_16BPP,
/* BTUART */
GPIO42_BTUART_RXD,
GPIO43_BTUART_TXD,
GPIO44_BTUART_CTS,
GPIO45_BTUART_RTS,
/* PC Card */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO52_nPCE_1,
GPIO53_nPCE_2,
GPIO54_nPSKTSEL,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
/* MMC */
GPIO6_MMC_CLK,
GPIO8_MMC_CS0,
/* wakeup */
GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
};
#define LUB_HEXLED __LUB_REG(LUBBOCK_FPGA_PHYS + 0x010)
#define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
void lubbock_set_hexled(uint32_t value)
{
LUB_HEXLED = value;
}
void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
{
unsigned long flags;
local_irq_save(flags);
LUB_MISC_WR = (LUB_MISC_WR & ~mask) | (set & mask);
local_irq_restore(flags);
}
EXPORT_SYMBOL(lubbock_set_misc_wr);
static unsigned long lubbock_irq_enabled;
static void lubbock_mask_irq(unsigned int irq)
{
int lubbock_irq = (irq - LUBBOCK_IRQ(0));
LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
}
static void lubbock_unmask_irq(unsigned int irq)
{
int lubbock_irq = (irq - LUBBOCK_IRQ(0));
/* the irq can be acknowledged only if deasserted, so it's done here */
LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq));
}
static struct irq_chip lubbock_irq_chip = {
.name = "FPGA",
.ack = lubbock_mask_irq,
.mask = lubbock_mask_irq,
.unmask = lubbock_unmask_irq,
};
static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
{
unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
do {
desc->chip->ack(irq); /* clear our parent irq */
if (likely(pending)) {
irq = LUBBOCK_IRQ(0) + __ffs(pending);
generic_handle_irq(irq);
}
pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
} while (pending);
}
static void __init lubbock_init_irq(void)
{
int irq;
pxa25x_init_irq();
/* setup extra lubbock irqs */
for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
set_irq_chip(irq, &lubbock_irq_chip);
set_irq_handler(irq, handle_level_irq);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
}
set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
}
#ifdef CONFIG_PM
static int lubbock_irq_resume(struct sys_device *dev)
{
LUB_IRQ_MASK_EN = lubbock_irq_enabled;
return 0;
}
static struct sysdev_class lubbock_irq_sysclass = {
.name = "cpld_irq",
.resume = lubbock_irq_resume,
};
static struct sys_device lubbock_irq_device = {
.cls = &lubbock_irq_sysclass,
};
static int __init lubbock_irq_device_init(void)
{
int ret = -ENODEV;
if (machine_is_lubbock()) {
ret = sysdev_class_register(&lubbock_irq_sysclass);
if (ret == 0)
ret = sysdev_register(&lubbock_irq_device);
}
return ret;
}
device_initcall(lubbock_irq_device_init);
#endif
static int lubbock_udc_is_connected(void)
{
return (LUB_MISC_RD & (1 << 9)) == 0;
}
static struct pxa2xx_udc_mach_info udc_info __initdata = {
.udc_is_connected = lubbock_udc_is_connected,
// no D+ pullup; lubbock can't connect/disconnect in software
};
static struct resource sa1111_resources[] = {
[0] = {
.start = 0x10000000,
.end = 0x10001fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = LUBBOCK_SA1111_IRQ,
.end = LUBBOCK_SA1111_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static struct sa1111_platform_data sa1111_info = {
.irq_base = LUBBOCK_SA1111_IRQ_BASE,
};
static struct platform_device sa1111_device = {
.name = "sa1111",
.id = -1,
.num_resources = ARRAY_SIZE(sa1111_resources),
.resource = sa1111_resources,
.dev = {
.platform_data = &sa1111_info,
},
};
/* ADS7846 is connected through SSP ... and if your board has J5 populated,
* you can select it to replace the ucb1400 by switching the touchscreen cable
* (to J5) and poking board registers (as done below). Else it's only useful
* for the temperature sensors.
*/
static struct pxa2xx_spi_master pxa_ssp_master_info = {
.num_chipselect = 1,
};
static int lubbock_ads7846_pendown_state(void)
{
/* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
return 0;
}
static struct ads7846_platform_data ads_info = {
.model = 7846,
.vref_delay_usecs = 100, /* internal, no cap */
.get_pendown_state = lubbock_ads7846_pendown_state,
// .x_plate_ohms = 500, /* GUESS! */
// .y_plate_ohms = 500, /* GUESS! */
};
static void ads7846_cs(u32 command)
{
static const unsigned TS_nCS = 1 << 11;
lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
}
static struct pxa2xx_spi_chip ads_hw = {
.tx_threshold = 1,
.rx_threshold = 2,
.cs_control = ads7846_cs,
};
static struct spi_board_info spi_board_info[] __initdata = { {
.modalias = "ads7846",
.platform_data = &ads_info,
.controller_data = &ads_hw,
.irq = LUBBOCK_BB_IRQ,
.max_speed_hz = 120000 /* max sample rate at 3V */
* 26 /* command + data + overhead */,
.bus_num = 1,
.chip_select = 0,
},
};
static struct resource smc91x_resources[] = {
[0] = {
.name = "smc91x-regs",
.start = 0x0c000c00,
.end = 0x0c0fffff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = LUBBOCK_ETH_IRQ,
.end = LUBBOCK_ETH_IRQ,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
},
[2] = {
.name = "smc91x-attrib",
.start = 0x0e000000,
.end = 0x0e0fffff,
.flags = IORESOURCE_MEM,
},
};
static struct smc91x_platdata lubbock_smc91x_info = {
.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_2,
};
static struct platform_device smc91x_device = {
.name = "smc91x",
.id = -1,
.num_resources = ARRAY_SIZE(smc91x_resources),
.resource = smc91x_resources,
.dev = {
.platform_data = &lubbock_smc91x_info,
},
};
static struct resource flash_resources[] = {
[0] = {
.start = 0x00000000,
.end = SZ_64M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 0x04000000,
.end = 0x04000000 + SZ_64M - 1,
.flags = IORESOURCE_MEM,
},
};
static struct mtd_partition lubbock_partitions[] = {
{
.name = "Bootloader",
.size = 0x00040000,
.offset = 0,
.mask_flags = MTD_WRITEABLE /* force read-only */
},{
.name = "Kernel",
.size = 0x00100000,
.offset = 0x00040000,
},{
.name = "Filesystem",
.size = MTDPART_SIZ_FULL,
.offset = 0x00140000
}
};
static struct flash_platform_data lubbock_flash_data[2] = {
{
.map_name = "cfi_probe",
.parts = lubbock_partitions,
.nr_parts = ARRAY_SIZE(lubbock_partitions),
}, {
.map_name = "cfi_probe",
.parts = NULL,
.nr_parts = 0,
}
};
static struct platform_device lubbock_flash_device[2] = {
{
.name = "pxa2xx-flash",
.id = 0,
.dev = {
.platform_data = &lubbock_flash_data[0],
},
.resource = &flash_resources[0],
.num_resources = 1,
},
{
.name = "pxa2xx-flash",
.id = 1,
.dev = {
.platform_data = &lubbock_flash_data[1],
},
.resource = &flash_resources[1],
.num_resources = 1,
},
};
static struct platform_device *devices[] __initdata = {
&sa1111_device,
&smc91x_device,
&lubbock_flash_device[0],
&lubbock_flash_device[1],
};
static struct pxafb_mode_info sharp_lm8v31_mode = {
.pixclock = 270000,
.xres = 640,
.yres = 480,
.bpp = 16,
.hsync_len = 1,
.left_margin = 3,
.right_margin = 3,
.vsync_len = 1,
.upper_margin = 0,
.lower_margin = 0,
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
.cmap_greyscale = 0,
};
static struct pxafb_mach_info sharp_lm8v31 = {
.modes = &sharp_lm8v31_mode,
.num_modes = 1,
.cmap_inverse = 0,
.cmap_static = 0,
.lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
LCD_AC_BIAS_FREQ(255),
};
#define MMC_POLL_RATE msecs_to_jiffies(1000)
static void lubbock_mmc_poll(unsigned long);
static irq_handler_t mmc_detect_int;
static struct timer_list mmc_timer = {
.function = lubbock_mmc_poll,
};
static void lubbock_mmc_poll(unsigned long data)
{
unsigned long flags;
/* clear any previous irq state, then ... */
local_irq_save(flags);
LUB_IRQ_SET_CLR &= ~(1 << 0);
local_irq_restore(flags);
/* poll until mmc/sd card is removed */
if (LUB_IRQ_SET_CLR & (1 << 0))
mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
else {
(void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data);
enable_irq(LUBBOCK_SD_IRQ);
}
}
static irqreturn_t lubbock_detect_int(int irq, void *data)
{
/* IRQ is level triggered; disable, and poll for removal */
disable_irq(irq);
mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
return mmc_detect_int(irq, data);
}
static int lubbock_mci_init(struct device *dev,
irq_handler_t detect_int,
void *data)
{
/* detect card insert/eject */
mmc_detect_int = detect_int;
init_timer(&mmc_timer);
mmc_timer.data = (unsigned long) data;
return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
}
static int lubbock_mci_get_ro(struct device *dev)
{
return (LUB_MISC_RD & (1 << 2)) != 0;
}
static void lubbock_mci_exit(struct device *dev, void *data)
{
free_irq(LUBBOCK_SD_IRQ, data);
del_timer_sync(&mmc_timer);
}
static struct pxamci_platform_data lubbock_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.detect_delay_ms = 10,
.init = lubbock_mci_init,
.get_ro = lubbock_mci_get_ro,
.exit = lubbock_mci_exit,
.gpio_card_detect = -1,
.gpio_card_ro = -1,
.gpio_power = -1,
};
static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
{
unsigned long flags;
local_irq_save(flags);
if (mode & IR_SIRMODE) {
LUB_MISC_WR &= ~(1 << 4);
} else if (mode & IR_FIRMODE) {
LUB_MISC_WR |= 1 << 4;
}
pxa2xx_transceiver_mode(dev, mode);
local_irq_restore(flags);
}
static struct pxaficp_platform_data lubbock_ficp_platform_data = {
.gpio_pwdown = -1,
.transceiver_cap = IR_SIRMODE | IR_FIRMODE,
.transceiver_mode = lubbock_irda_transceiver_mode,
};
static void __init lubbock_init(void)
{
int flashboot = (LUB_CONF_SWITCHES & 1);
pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
pxa_set_udc_info(&udc_info);
set_pxa_fb_info(&sharp_lm8v31);
pxa_set_mci_info(&lubbock_mci_platform_data);
pxa_set_ficp_info(&lubbock_ficp_platform_data);
pxa_set_ac97_info(NULL);
lubbock_flash_data[0].width = lubbock_flash_data[1].width =
(BOOT_DEF & 1) ? 2 : 4;
/* Compensate for the nROMBT switch which swaps the flash banks */
printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
flashboot?"Flash":"ROM", flashboot);
lubbock_flash_data[flashboot^1].name = "application-flash";
lubbock_flash_data[flashboot].name = "boot-rom";
(void) platform_add_devices(devices, ARRAY_SIZE(devices));
pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
}
static struct map_desc lubbock_io_desc[] __initdata = {
{ /* CPLD */
.virtual = LUBBOCK_FPGA_VIRT,
.pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
.length = 0x00100000,
.type = MT_DEVICE
}
};
static void __init lubbock_map_io(void)
{
pxa_map_io();
iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
PCFR |= PCFR_OPDE;
}
MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
/* Maintainer: MontaVista Software Inc. */
.map_io = lubbock_map_io,
.nr_irqs = LUBBOCK_NR_IRQS,
.init_irq = lubbock_init_irq,
.timer = &pxa_timer,
.init_machine = lubbock_init,
MACHINE_END
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