intel_mid: Moved SFI related code to sfi.c
authorKuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Thu, 17 Oct 2013 22:35:33 +0000 (15:35 -0700)
committerH. Peter Anvin <hpa@linux.intel.com>
Thu, 17 Oct 2013 23:40:51 +0000 (16:40 -0700)
Moved SFI specific parsing/handling code to sfi.c. This will enable us
to reuse our intel-mid code for platforms that supports firmware
interfaces other than SFI (like ACPI).

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-10-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
arch/x86/include/asm/intel-mid.h
arch/x86/platform/intel-mid/Makefile
arch/x86/platform/intel-mid/intel-mid.c
arch/x86/platform/intel-mid/sfi.c [new file with mode: 0644]

index ad236ae..3b0e7a7 100644 (file)
@@ -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[];
 
index de29635..b11e5b2 100644 (file)
@@ -1,3 +1,5 @@
 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
index 40a3ff8..4091569 100644 (file)
 #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>
 
 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)
@@ -1078,4 +629,4 @@ static int __init pb_keys_init(void)
        }
        return 0;
 }
-late_initcall(pb_keys_init);
+late_initcall(pb_keys_init);
\ No newline at end of file
diff --git a/arch/x86/platform/intel-mid/sfi.c b/arch/x86/platform/intel-mid/sfi.c
new file mode 100644 (file)
index 0000000..2f8196d
--- /dev/null
@@ -0,0 +1,485 @@
+/*
+ * intel_mid_sfi.c: Intel MID SFI initialization code
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#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/skbuff.h>
+#include <linux/gpio.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/mmc/core.h>
+#include <linux/mmc/card.h>
+#include <linux/blkdev.h>
+
+#include <asm/setup.h>
+#include <asm/mpspec_def.h>
+#include <asm/hw_irq.h>
+#include <asm/apic.h>
+#include <asm/io_apic.h>
+#include <asm/intel-mid.h>
+#include <asm/intel_mid_vrtc.h>
+#include <asm/io.h>
+#include <asm/i8259.h>
+#include <asm/intel_scu_ipc.h>
+#include <asm/apb_timer.h>
+#include <asm/reboot.h>
+#include "intel_mid_weak_decls.h"
+
+#define        SFI_SIG_OEM0    "OEM0"
+#define MAX_IPCDEVS    24
+#define MAX_SCU_SPI    24
+#define MAX_SCU_I2C    24
+
+static struct platform_device *ipc_devs[MAX_IPCDEVS];
+static struct spi_board_info *spi_devs[MAX_SCU_SPI];
+static struct i2c_board_info *i2c_devs[MAX_SCU_I2C];
+static struct sfi_gpio_table_entry *gpio_table;
+static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM];
+static int ipc_next_dev;
+static int spi_next_dev;
+static int i2c_next_dev;
+static int i2c_bus[MAX_SCU_I2C];
+static int gpio_num_entry;
+static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM];
+int sfi_mrtc_num;
+int sfi_mtimer_num;
+
+struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
+EXPORT_SYMBOL_GPL(sfi_mrtc_array);
+
+struct blocking_notifier_head intel_scu_notifier =
+                       BLOCKING_NOTIFIER_INIT(intel_scu_notifier);
+EXPORT_SYMBOL_GPL(intel_scu_notifier);
+
+/* parse all the mtimer info to a static mtimer array */
+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;
+}
+
+
+/*
+ * Parsing GPIO table first, since the DEVS table will need this table
+ * to map the pin name to the actual pin.
+ */
+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;
+}
+
+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;
+}
+
+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;
+}
+
+/* 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 res __initdata = {
+               .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 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);