intel_mid: Moved SFI related code to sfi.c
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>
This commit is contained in:
Kuppuswamy Sathyanarayanan
H. Peter Anvin
parent
49c72a0a8a
commit
aeedb370e7
4 changed files with 489 additions and 450 deletions
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@ -15,6 +15,7 @@
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extern int intel_mid_pci_init(void);
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extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
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extern int __init sfi_parse_mtmr(struct sfi_table_header *table);
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extern int sfi_mrtc_num;
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extern struct sfi_rtc_table_entry sfi_mrtc_array[];
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@ -1,3 +1,5 @@
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obj-$(CONFIG_X86_INTEL_MID) += intel-mid.o
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obj-$(CONFIG_X86_INTEL_MID) += intel_mid_vrtc.o
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obj-$(CONFIG_EARLY_PRINTK_INTEL_MID) += early_printk_intel_mid.o
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# SFI specific code
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obj-$(CONFIG_SFI) += sfi.o
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@ -18,19 +18,9 @@
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#include <linux/interrupt.h>
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#include <linux/scatterlist.h>
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#include <linux/sfi.h>
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#include <linux/intel_pmic_gpio.h>
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#include <linux/spi/spi.h>
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#include <linux/i2c.h>
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#include <linux/platform_data/pca953x.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/platform_device.h>
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#include <linux/irq.h>
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#include <linux/module.h>
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#include <linux/notifier.h>
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#include <linux/mfd/intel_msic.h>
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#include <linux/gpio.h>
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#include <linux/i2c/tc35876x.h>
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#include <asm/setup.h>
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#include <asm/mpspec_def.h>
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@ -68,19 +58,11 @@
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enum intel_mid_timer_options intel_mid_timer_options;
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static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM];
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static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM];
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enum intel_mid_cpu_type __intel_mid_cpu_chip;
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EXPORT_SYMBOL_GPL(__intel_mid_cpu_chip);
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int sfi_mtimer_num;
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struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
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EXPORT_SYMBOL_GPL(sfi_mrtc_array);
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int sfi_mrtc_num;
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static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
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struct devs_id *dev);
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static void intel_mid_power_off(void)
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{
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}
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@ -90,114 +72,6 @@ static void intel_mid_reboot(void)
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intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
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}
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/* parse all the mtimer info to a static mtimer array */
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static int __init sfi_parse_mtmr(struct sfi_table_header *table)
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{
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struct sfi_table_simple *sb;
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struct sfi_timer_table_entry *pentry;
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struct mpc_intsrc mp_irq;
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int totallen;
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sb = (struct sfi_table_simple *)table;
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if (!sfi_mtimer_num) {
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sfi_mtimer_num = SFI_GET_NUM_ENTRIES(sb,
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struct sfi_timer_table_entry);
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pentry = (struct sfi_timer_table_entry *) sb->pentry;
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totallen = sfi_mtimer_num * sizeof(*pentry);
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memcpy(sfi_mtimer_array, pentry, totallen);
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}
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pr_debug("SFI MTIMER info (num = %d):\n", sfi_mtimer_num);
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pentry = sfi_mtimer_array;
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for (totallen = 0; totallen < sfi_mtimer_num; totallen++, pentry++) {
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pr_debug("timer[%d]: paddr = 0x%08x, freq = %dHz,"
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" irq = %d\n", totallen, (u32)pentry->phys_addr,
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pentry->freq_hz, pentry->irq);
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if (!pentry->irq)
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continue;
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mp_irq.type = MP_INTSRC;
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mp_irq.irqtype = mp_INT;
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/* triggering mode edge bit 2-3, active high polarity bit 0-1 */
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mp_irq.irqflag = 5;
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mp_irq.srcbus = MP_BUS_ISA;
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mp_irq.srcbusirq = pentry->irq; /* IRQ */
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mp_irq.dstapic = MP_APIC_ALL;
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mp_irq.dstirq = pentry->irq;
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mp_save_irq(&mp_irq);
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}
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return 0;
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}
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struct sfi_timer_table_entry *sfi_get_mtmr(int hint)
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{
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int i;
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if (hint < sfi_mtimer_num) {
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if (!sfi_mtimer_usage[hint]) {
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pr_debug("hint taken for timer %d irq %d\n",
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hint, sfi_mtimer_array[hint].irq);
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sfi_mtimer_usage[hint] = 1;
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return &sfi_mtimer_array[hint];
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}
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}
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/* take the first timer available */
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for (i = 0; i < sfi_mtimer_num;) {
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if (!sfi_mtimer_usage[i]) {
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sfi_mtimer_usage[i] = 1;
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return &sfi_mtimer_array[i];
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}
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i++;
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}
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return NULL;
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}
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void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr)
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{
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int i;
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for (i = 0; i < sfi_mtimer_num;) {
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if (mtmr->irq == sfi_mtimer_array[i].irq) {
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sfi_mtimer_usage[i] = 0;
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return;
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}
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i++;
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}
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}
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/* parse all the mrtc info to a global mrtc array */
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int __init sfi_parse_mrtc(struct sfi_table_header *table)
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{
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struct sfi_table_simple *sb;
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struct sfi_rtc_table_entry *pentry;
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struct mpc_intsrc mp_irq;
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int totallen;
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sb = (struct sfi_table_simple *)table;
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if (!sfi_mrtc_num) {
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sfi_mrtc_num = SFI_GET_NUM_ENTRIES(sb,
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struct sfi_rtc_table_entry);
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pentry = (struct sfi_rtc_table_entry *)sb->pentry;
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totallen = sfi_mrtc_num * sizeof(*pentry);
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memcpy(sfi_mrtc_array, pentry, totallen);
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}
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pr_debug("SFI RTC info (num = %d):\n", sfi_mrtc_num);
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pentry = sfi_mrtc_array;
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for (totallen = 0; totallen < sfi_mrtc_num; totallen++, pentry++) {
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pr_debug("RTC[%d]: paddr = 0x%08x, irq = %d\n",
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totallen, (u32)pentry->phys_addr, pentry->irq);
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mp_irq.type = MP_INTSRC;
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mp_irq.irqtype = mp_INT;
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mp_irq.irqflag = 0xf; /* level trigger and active low */
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mp_irq.srcbus = MP_BUS_ISA;
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mp_irq.srcbusirq = pentry->irq; /* IRQ */
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mp_irq.dstapic = MP_APIC_ALL;
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mp_irq.dstirq = pentry->irq;
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mp_save_irq(&mp_irq);
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}
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return 0;
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}
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static unsigned long __init intel_mid_calibrate_tsc(void)
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{
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unsigned long fast_calibrate;
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@ -339,55 +213,6 @@ static inline int __init setup_x86_intel_mid_timer(char *arg)
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}
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__setup("x86_intel_mid_timer=", setup_x86_intel_mid_timer);
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/*
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* Parsing GPIO table first, since the DEVS table will need this table
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* to map the pin name to the actual pin.
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*/
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static struct sfi_gpio_table_entry *gpio_table;
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static int gpio_num_entry;
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static int __init sfi_parse_gpio(struct sfi_table_header *table)
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{
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struct sfi_table_simple *sb;
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struct sfi_gpio_table_entry *pentry;
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int num, i;
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if (gpio_table)
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return 0;
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sb = (struct sfi_table_simple *)table;
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num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
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pentry = (struct sfi_gpio_table_entry *)sb->pentry;
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gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
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if (!gpio_table)
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return -1;
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memcpy(gpio_table, pentry, num * sizeof(*pentry));
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gpio_num_entry = num;
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pr_debug("GPIO pin info:\n");
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for (i = 0; i < num; i++, pentry++)
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pr_debug("info[%2d]: controller = %16.16s, pin_name = %16.16s,"
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" pin = %d\n", i,
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pentry->controller_name,
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pentry->pin_name,
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pentry->pin_no);
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return 0;
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}
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static int get_gpio_by_name(const char *name)
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{
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struct sfi_gpio_table_entry *pentry = gpio_table;
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int i;
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if (!pentry)
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return -1;
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for (i = 0; i < gpio_num_entry; i++, pentry++) {
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if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
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return pentry->pin_no;
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}
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return -1;
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}
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/* the offset for the mapping of global gpio pin to irq */
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#define INTEL_MID_IRQ_OFFSET 0x100
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@ -703,197 +528,6 @@ static const struct devs_id __initconst device_ids[] = {
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{ 0 }
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};
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#define MAX_IPCDEVS 24
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static struct platform_device *ipc_devs[MAX_IPCDEVS];
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static int ipc_next_dev;
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#define MAX_SCU_SPI 24
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static struct spi_board_info *spi_devs[MAX_SCU_SPI];
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static int spi_next_dev;
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#define MAX_SCU_I2C 24
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static struct i2c_board_info *i2c_devs[MAX_SCU_I2C];
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static int i2c_bus[MAX_SCU_I2C];
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static int i2c_next_dev;
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static void __init intel_scu_device_register(struct platform_device *pdev)
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{
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if (ipc_next_dev == MAX_IPCDEVS)
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pr_err("too many SCU IPC devices");
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else
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ipc_devs[ipc_next_dev++] = pdev;
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}
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static void __init intel_scu_spi_device_register(struct spi_board_info *sdev)
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{
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struct spi_board_info *new_dev;
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if (spi_next_dev == MAX_SCU_SPI) {
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pr_err("too many SCU SPI devices");
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return;
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}
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new_dev = kzalloc(sizeof(*sdev), GFP_KERNEL);
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if (!new_dev) {
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pr_err("failed to alloc mem for delayed spi dev %s\n",
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sdev->modalias);
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return;
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}
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memcpy(new_dev, sdev, sizeof(*sdev));
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spi_devs[spi_next_dev++] = new_dev;
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}
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static void __init intel_scu_i2c_device_register(int bus,
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struct i2c_board_info *idev)
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{
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struct i2c_board_info *new_dev;
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if (i2c_next_dev == MAX_SCU_I2C) {
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pr_err("too many SCU I2C devices");
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return;
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}
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new_dev = kzalloc(sizeof(*idev), GFP_KERNEL);
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if (!new_dev) {
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pr_err("failed to alloc mem for delayed i2c dev %s\n",
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idev->type);
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return;
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}
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memcpy(new_dev, idev, sizeof(*idev));
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i2c_bus[i2c_next_dev] = bus;
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i2c_devs[i2c_next_dev++] = new_dev;
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}
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BLOCKING_NOTIFIER_HEAD(intel_scu_notifier);
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EXPORT_SYMBOL_GPL(intel_scu_notifier);
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/* Called by IPC driver */
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void intel_scu_devices_create(void)
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{
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int i;
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for (i = 0; i < ipc_next_dev; i++)
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platform_device_add(ipc_devs[i]);
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for (i = 0; i < spi_next_dev; i++)
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spi_register_board_info(spi_devs[i], 1);
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for (i = 0; i < i2c_next_dev; i++) {
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struct i2c_adapter *adapter;
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struct i2c_client *client;
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adapter = i2c_get_adapter(i2c_bus[i]);
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if (adapter) {
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client = i2c_new_device(adapter, i2c_devs[i]);
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if (!client)
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pr_err("can't create i2c device %s\n",
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i2c_devs[i]->type);
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} else
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i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1);
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}
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intel_scu_notifier_post(SCU_AVAILABLE, NULL);
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}
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EXPORT_SYMBOL_GPL(intel_scu_devices_create);
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/* Called by IPC driver */
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void intel_scu_devices_destroy(void)
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{
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int i;
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intel_scu_notifier_post(SCU_DOWN, NULL);
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for (i = 0; i < ipc_next_dev; i++)
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platform_device_del(ipc_devs[i]);
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}
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EXPORT_SYMBOL_GPL(intel_scu_devices_destroy);
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static void __init install_irq_resource(struct platform_device *pdev, int irq)
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{
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/* Single threaded */
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static struct resource __initdata res = {
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.name = "IRQ",
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.flags = IORESOURCE_IRQ,
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};
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res.start = irq;
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platform_device_add_resources(pdev, &res, 1);
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}
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static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
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struct devs_id *dev)
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{
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struct platform_device *pdev;
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void *pdata = NULL;
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pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
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pentry->name, pentry->irq);
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pdata = dev->get_platform_data(pentry);
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pdev = platform_device_alloc(pentry->name, 0);
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if (pdev == NULL) {
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pr_err("out of memory for SFI platform device '%s'.\n",
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pentry->name);
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return;
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}
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install_irq_resource(pdev, pentry->irq);
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pdev->dev.platform_data = pdata;
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platform_device_add(pdev);
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}
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static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry,
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struct devs_id *dev)
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{
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struct spi_board_info spi_info;
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void *pdata = NULL;
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memset(&spi_info, 0, sizeof(spi_info));
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strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
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spi_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
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spi_info.bus_num = pentry->host_num;
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spi_info.chip_select = pentry->addr;
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spi_info.max_speed_hz = pentry->max_freq;
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pr_debug("SPI bus=%d, name=%16.16s, irq=0x%2x, max_freq=%d, cs=%d\n",
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spi_info.bus_num,
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spi_info.modalias,
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spi_info.irq,
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spi_info.max_speed_hz,
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spi_info.chip_select);
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pdata = dev->get_platform_data(&spi_info);
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spi_info.platform_data = pdata;
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if (dev->delay)
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intel_scu_spi_device_register(&spi_info);
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else
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spi_register_board_info(&spi_info, 1);
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}
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static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
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struct devs_id *dev)
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{
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struct i2c_board_info i2c_info;
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void *pdata = NULL;
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memset(&i2c_info, 0, sizeof(i2c_info));
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strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
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i2c_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
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i2c_info.addr = pentry->addr;
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pr_debug("I2C bus = %d, name = %16.16s, irq = 0x%2x, addr = 0x%x\n",
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pentry->host_num,
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i2c_info.type,
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i2c_info.irq,
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i2c_info.addr);
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pdata = dev->get_platform_data(&i2c_info);
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i2c_info.platform_data = pdata;
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if (dev->delay)
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intel_scu_i2c_device_register(pentry->host_num, &i2c_info);
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else
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i2c_register_board_info(pentry->host_num, &i2c_info, 1);
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}
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static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
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struct devs_id *dev)
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{
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|
|
@ -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);
|
||||
485
arch/x86/platform/intel-mid/sfi.c
Normal file
485
arch/x86/platform/intel-mid/sfi.c
Normal file
|
|
@ -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);
|
||||
Loading…
Reference in a new issue