intel_mid: Moved SFI related code to sfi.c (aeedb370) · Commits · e / devices / android_kernel_teracube_2e

arch/x86/include/asm/intel-mid.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -15,6 +15,7 @@

		extern int intel_mid_pci_init(void);
		extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
		extern int __init sfi_parse_mtmr(struct sfi_table_header *table);
		extern int sfi_mrtc_num;
		extern struct sfi_rtc_table_entry sfi_mrtc_array[];

arch/x86/platform/intel-mid/Makefile

+2 −0

Original line number	Diff line number	Diff line
		obj-$(CONFIG_X86_INTEL_MID) += intel-mid.o
		obj-$(CONFIG_X86_INTEL_MID) += intel_mid_vrtc.o
		obj-$(CONFIG_EARLY_PRINTK_INTEL_MID) += early_printk_intel_mid.o
		# SFI specific code
		obj-$(CONFIG_SFI) += sfi.o

arch/x86/platform/intel-mid/intel-mid.c

+1 −450

Original line number	Diff line number	Diff line
		@@ -18,19 +18,9 @@
		#include <linux/interrupt.h>
		#include <linux/scatterlist.h>
		#include <linux/sfi.h>
		#include <linux/intel_pmic_gpio.h>
		#include <linux/spi/spi.h>
		#include <linux/i2c.h>
		#include <linux/platform_data/pca953x.h>
		#include <linux/gpio_keys.h>
		#include <linux/input.h>
		#include <linux/platform_device.h>
		#include <linux/irq.h>
		#include <linux/module.h>
		#include <linux/notifier.h>
		#include <linux/mfd/intel_msic.h>
		#include <linux/gpio.h>
		#include <linux/i2c/tc35876x.h>

		#include <asm/setup.h>
		#include <asm/mpspec_def.h>
		@@ -68,19 +58,11 @@

		enum intel_mid_timer_options intel_mid_timer_options;

		static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM];
		static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM];
		enum intel_mid_cpu_type __intel_mid_cpu_chip;
		EXPORT_SYMBOL_GPL(__intel_mid_cpu_chip);

		int sfi_mtimer_num;

		struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
		EXPORT_SYMBOL_GPL(sfi_mrtc_array);
		int sfi_mrtc_num;
		static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
		struct devs_id *dev);

		static void intel_mid_power_off(void)
		{
		}
		@@ -90,114 +72,6 @@ static void intel_mid_reboot(void)
		intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
		}

		/* parse all the mtimer info to a static mtimer array */
		static int __init sfi_parse_mtmr(struct sfi_table_header *table)
		{
		struct sfi_table_simple *sb;
		struct sfi_timer_table_entry *pentry;
		struct mpc_intsrc mp_irq;
		int totallen;

		sb = (struct sfi_table_simple *)table;
		if (!sfi_mtimer_num) {
		sfi_mtimer_num = SFI_GET_NUM_ENTRIES(sb,
		struct sfi_timer_table_entry);
		pentry = (struct sfi_timer_table_entry *) sb->pentry;
		totallen = sfi_mtimer_num * sizeof(*pentry);
		memcpy(sfi_mtimer_array, pentry, totallen);
		}

		pr_debug("SFI MTIMER info (num = %d):\n", sfi_mtimer_num);
		pentry = sfi_mtimer_array;
		for (totallen = 0; totallen < sfi_mtimer_num; totallen++, pentry++) {
		pr_debug("timer[%d]: paddr = 0x%08x, freq = %dHz,"
		" irq = %d\n", totallen, (u32)pentry->phys_addr,
		pentry->freq_hz, pentry->irq);
		if (!pentry->irq)
		continue;
		mp_irq.type = MP_INTSRC;
		mp_irq.irqtype = mp_INT;
		/* triggering mode edge bit 2-3, active high polarity bit 0-1 */
		mp_irq.irqflag = 5;
		mp_irq.srcbus = MP_BUS_ISA;
		mp_irq.srcbusirq = pentry->irq; /* IRQ */
		mp_irq.dstapic = MP_APIC_ALL;
		mp_irq.dstirq = pentry->irq;
		mp_save_irq(&mp_irq);
		}

		return 0;
		}

		struct sfi_timer_table_entry *sfi_get_mtmr(int hint)
		{
		int i;
		if (hint < sfi_mtimer_num) {
		if (!sfi_mtimer_usage[hint]) {
		pr_debug("hint taken for timer %d irq %d\n",
		hint, sfi_mtimer_array[hint].irq);
		sfi_mtimer_usage[hint] = 1;
		return &sfi_mtimer_array[hint];
		}
		}
		/* take the first timer available */
		for (i = 0; i < sfi_mtimer_num;) {
		if (!sfi_mtimer_usage[i]) {
		sfi_mtimer_usage[i] = 1;
		return &sfi_mtimer_array[i];
		}
		i++;
		}
		return NULL;
		}

		void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr)
		{
		int i;
		for (i = 0; i < sfi_mtimer_num;) {
		if (mtmr->irq == sfi_mtimer_array[i].irq) {
		sfi_mtimer_usage[i] = 0;
		return;
		}
		i++;
		}
		}

		/* parse all the mrtc info to a global mrtc array */
		int __init sfi_parse_mrtc(struct sfi_table_header *table)
		{
		struct sfi_table_simple *sb;
		struct sfi_rtc_table_entry *pentry;
		struct mpc_intsrc mp_irq;

		int totallen;

		sb = (struct sfi_table_simple *)table;
		if (!sfi_mrtc_num) {
		sfi_mrtc_num = SFI_GET_NUM_ENTRIES(sb,
		struct sfi_rtc_table_entry);
		pentry = (struct sfi_rtc_table_entry *)sb->pentry;
		totallen = sfi_mrtc_num * sizeof(*pentry);
		memcpy(sfi_mrtc_array, pentry, totallen);
		}

		pr_debug("SFI RTC info (num = %d):\n", sfi_mrtc_num);
		pentry = sfi_mrtc_array;
		for (totallen = 0; totallen < sfi_mrtc_num; totallen++, pentry++) {
		pr_debug("RTC[%d]: paddr = 0x%08x, irq = %d\n",
		totallen, (u32)pentry->phys_addr, pentry->irq);
		mp_irq.type = MP_INTSRC;
		mp_irq.irqtype = mp_INT;
		mp_irq.irqflag = 0xf; /* level trigger and active low */
		mp_irq.srcbus = MP_BUS_ISA;
		mp_irq.srcbusirq = pentry->irq; /* IRQ */
		mp_irq.dstapic = MP_APIC_ALL;
		mp_irq.dstirq = pentry->irq;
		mp_save_irq(&mp_irq);
		}
		return 0;
		}

		static unsigned long __init intel_mid_calibrate_tsc(void)
		{
		unsigned long fast_calibrate;
		@@ -339,55 +213,6 @@ static inline int __init setup_x86_intel_mid_timer(char *arg)
		}
		__setup("x86_intel_mid_timer=", setup_x86_intel_mid_timer);

		/*
		* Parsing GPIO table first, since the DEVS table will need this table
		* to map the pin name to the actual pin.
		*/
		static struct sfi_gpio_table_entry *gpio_table;
		static int gpio_num_entry;

		static int __init sfi_parse_gpio(struct sfi_table_header *table)
		{
		struct sfi_table_simple *sb;
		struct sfi_gpio_table_entry *pentry;
		int num, i;

		if (gpio_table)
		return 0;
		sb = (struct sfi_table_simple *)table;
		num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
		pentry = (struct sfi_gpio_table_entry *)sb->pentry;

		gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
		if (!gpio_table)
		return -1;
		memcpy(gpio_table, pentry, num * sizeof(*pentry));
		gpio_num_entry = num;

		pr_debug("GPIO pin info:\n");
		for (i = 0; i < num; i++, pentry++)
		pr_debug("info[%2d]: controller = %16.16s, pin_name = %16.16s,"
		" pin = %d\n", i,
		pentry->controller_name,
		pentry->pin_name,
		pentry->pin_no);
		return 0;
		}

		static int get_gpio_by_name(const char *name)
		{
		struct sfi_gpio_table_entry *pentry = gpio_table;
		int i;

		if (!pentry)
		return -1;
		for (i = 0; i < gpio_num_entry; i++, pentry++) {
		if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
		return pentry->pin_no;
		}
		return -1;
		}

		/* the offset for the mapping of global gpio pin to irq */
		#define INTEL_MID_IRQ_OFFSET 0x100

		@@ -703,197 +528,6 @@ static const struct devs_id __initconst device_ids[] = {
		{ 0 }
		};

		#define MAX_IPCDEVS 24
		static struct platform_device *ipc_devs[MAX_IPCDEVS];
		static int ipc_next_dev;

		#define MAX_SCU_SPI 24
		static struct spi_board_info *spi_devs[MAX_SCU_SPI];
		static int spi_next_dev;

		#define MAX_SCU_I2C 24
		static struct i2c_board_info *i2c_devs[MAX_SCU_I2C];
		static int i2c_bus[MAX_SCU_I2C];
		static int i2c_next_dev;

		static void __init intel_scu_device_register(struct platform_device *pdev)
		{
		if (ipc_next_dev == MAX_IPCDEVS)
		pr_err("too many SCU IPC devices");
		else
		ipc_devs[ipc_next_dev++] = pdev;
		}

		static void __init intel_scu_spi_device_register(struct spi_board_info *sdev)
		{
		struct spi_board_info *new_dev;

		if (spi_next_dev == MAX_SCU_SPI) {
		pr_err("too many SCU SPI devices");
		return;
		}

		new_dev = kzalloc(sizeof(*sdev), GFP_KERNEL);
		if (!new_dev) {
		pr_err("failed to alloc mem for delayed spi dev %s\n",
		sdev->modalias);
		return;
		}
		memcpy(new_dev, sdev, sizeof(*sdev));

		spi_devs[spi_next_dev++] = new_dev;
		}

		static void __init intel_scu_i2c_device_register(int bus,
		struct i2c_board_info *idev)
		{
		struct i2c_board_info *new_dev;

		if (i2c_next_dev == MAX_SCU_I2C) {
		pr_err("too many SCU I2C devices");
		return;
		}

		new_dev = kzalloc(sizeof(*idev), GFP_KERNEL);
		if (!new_dev) {
		pr_err("failed to alloc mem for delayed i2c dev %s\n",
		idev->type);
		return;
		}
		memcpy(new_dev, idev, sizeof(*idev));

		i2c_bus[i2c_next_dev] = bus;
		i2c_devs[i2c_next_dev++] = new_dev;
		}

		BLOCKING_NOTIFIER_HEAD(intel_scu_notifier);
		EXPORT_SYMBOL_GPL(intel_scu_notifier);

		/* Called by IPC driver */
		void intel_scu_devices_create(void)
		{
		int i;

		for (i = 0; i < ipc_next_dev; i++)
		platform_device_add(ipc_devs[i]);

		for (i = 0; i < spi_next_dev; i++)
		spi_register_board_info(spi_devs[i], 1);

		for (i = 0; i < i2c_next_dev; i++) {
		struct i2c_adapter *adapter;
		struct i2c_client *client;

		adapter = i2c_get_adapter(i2c_bus[i]);
		if (adapter) {
		client = i2c_new_device(adapter, i2c_devs[i]);
		if (!client)
		pr_err("can't create i2c device %s\n",
		i2c_devs[i]->type);
		} else
		i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1);
		}
		intel_scu_notifier_post(SCU_AVAILABLE, NULL);
		}
		EXPORT_SYMBOL_GPL(intel_scu_devices_create);

		/* Called by IPC driver */
		void intel_scu_devices_destroy(void)
		{
		int i;

		intel_scu_notifier_post(SCU_DOWN, NULL);

		for (i = 0; i < ipc_next_dev; i++)
		platform_device_del(ipc_devs[i]);
		}
		EXPORT_SYMBOL_GPL(intel_scu_devices_destroy);

		static void __init install_irq_resource(struct platform_device *pdev, int irq)
		{
		/* Single threaded */
		static struct resource __initdata res = {
		.name = "IRQ",
		.flags = IORESOURCE_IRQ,
		};
		res.start = irq;
		platform_device_add_resources(pdev, &res, 1);
		}

		static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
		struct devs_id *dev)
		{
		struct platform_device *pdev;
		void *pdata = NULL;

		pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
		pentry->name, pentry->irq);
		pdata = dev->get_platform_data(pentry);

		pdev = platform_device_alloc(pentry->name, 0);
		if (pdev == NULL) {
		pr_err("out of memory for SFI platform device '%s'.\n",
		pentry->name);
		return;
		}
		install_irq_resource(pdev, pentry->irq);

		pdev->dev.platform_data = pdata;
		platform_device_add(pdev);
		}

		static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry,
		struct devs_id *dev)
		{
		struct spi_board_info spi_info;
		void *pdata = NULL;

		memset(&spi_info, 0, sizeof(spi_info));
		strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
		spi_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
		spi_info.bus_num = pentry->host_num;
		spi_info.chip_select = pentry->addr;
		spi_info.max_speed_hz = pentry->max_freq;
		pr_debug("SPI bus=%d, name=%16.16s, irq=0x%2x, max_freq=%d, cs=%d\n",
		spi_info.bus_num,
		spi_info.modalias,
		spi_info.irq,
		spi_info.max_speed_hz,
		spi_info.chip_select);

		pdata = dev->get_platform_data(&spi_info);

		spi_info.platform_data = pdata;
		if (dev->delay)
		intel_scu_spi_device_register(&spi_info);
		else
		spi_register_board_info(&spi_info, 1);
		}

		static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
		struct devs_id *dev)
		{
		struct i2c_board_info i2c_info;
		void *pdata = NULL;

		memset(&i2c_info, 0, sizeof(i2c_info));
		strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
		i2c_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
		i2c_info.addr = pentry->addr;
		pr_debug("I2C bus = %d, name = %16.16s, irq = 0x%2x, addr = 0x%x\n",
		pentry->host_num,
		i2c_info.type,
		i2c_info.irq,
		i2c_info.addr);
		pdata = dev->get_platform_data(&i2c_info);
		i2c_info.platform_data = pdata;

		if (dev->delay)
		intel_scu_i2c_device_register(pentry->host_num, &i2c_info);
		else
		i2c_register_board_info(pentry->host_num, &i2c_info, 1);
		}

		static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
		struct devs_id *dev)
		{
		@@ -934,89 +568,6 @@ static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
		intel_scu_device_register(pdev);
		}

		static struct devs_id __init get_device_id(u8 type, char name)
		{
		struct devs_id *dev = device_ids;

		if (device_ids == NULL)
		return NULL;

		while (dev->name[0]) {
		if (dev->type == type &&
		!strncmp(dev->name, name, SFI_NAME_LEN)) {
		return dev;
		}
		dev++;
		}

		return NULL;
		}

		static int __init sfi_parse_devs(struct sfi_table_header *table)
		{
		struct sfi_table_simple *sb;
		struct sfi_device_table_entry *pentry;
		struct devs_id *dev = NULL;
		int num, i;
		int ioapic;
		struct io_apic_irq_attr irq_attr;

		sb = (struct sfi_table_simple *)table;
		num = SFI_GET_NUM_ENTRIES(sb, struct sfi_device_table_entry);
		pentry = (struct sfi_device_table_entry *)sb->pentry;

		for (i = 0; i < num; i++, pentry++) {
		int irq = pentry->irq;

		if (irq != (u8)0xff) { /* native RTE case */
		/* these SPI2 devices are not exposed to system as PCI
		* devices, but they have separate RTE entry in IOAPIC
		* so we have to enable them one by one here
		*/
		ioapic = mp_find_ioapic(irq);
		irq_attr.ioapic = ioapic;
		irq_attr.ioapic_pin = irq;
		irq_attr.trigger = 1;
		irq_attr.polarity = 1;
		io_apic_set_pci_routing(NULL, irq, &irq_attr);
		} else
		irq = 0; /* No irq */

		dev = get_device_id(pentry->type, pentry->name);

		if ((dev == NULL) \|\| (dev->get_platform_data == NULL))
		continue;

		if (dev->device_handler) {
		dev->device_handler(pentry, dev);
		} else {
		switch (pentry->type) {
		case SFI_DEV_TYPE_IPC:
		sfi_handle_ipc_dev(pentry, dev);
		break;
		case SFI_DEV_TYPE_SPI:
		sfi_handle_spi_dev(pentry, dev);
		break;
		case SFI_DEV_TYPE_I2C:
		sfi_handle_i2c_dev(pentry, dev);
		break;
		case SFI_DEV_TYPE_UART:
		case SFI_DEV_TYPE_HSI:
		default:
		break;
		}
		}
		}
		return 0;
		}

		static int __init intel_mid_platform_init(void)
		{
		sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio);
		sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs);
		return 0;
		}
		arch_initcall(intel_mid_platform_init);

		/*
		* we will search these buttons in SFI GPIO table (by name)

arch/x86/platform/intel-mid/sfi.c

0 → 100644

+485 −0

File added.

Preview size limit exceeded, changes collapsed.