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@@ -33,18 +33,23 @@
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#include "omap4-sar-layout.h"
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#include "common.h"
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-#define NR_REG_BANKS 4
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-#define MAX_IRQS 128
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+#define MAX_NR_REG_BANKS 5
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+#define MAX_IRQS 160
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#define WKG_MASK_ALL 0x00000000
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#define WKG_UNMASK_ALL 0xffffffff
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#define CPU_ENA_OFFSET 0x400
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#define CPU0_ID 0x0
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#define CPU1_ID 0x1
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+#define OMAP4_NR_BANKS 4
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+#define OMAP4_NR_IRQS 128
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static void __iomem *wakeupgen_base;
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static void __iomem *sar_base;
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static DEFINE_SPINLOCK(wakeupgen_lock);
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static unsigned int irq_target_cpu[NR_IRQS];
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+static unsigned int irq_banks = MAX_NR_REG_BANKS;
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+static unsigned int max_irqs = MAX_IRQS;
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+static unsigned int omap_secure_apis;
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/*
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* Static helper functions.
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@@ -146,13 +151,13 @@ static void wakeupgen_unmask(struct irq_data *d)
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}
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#ifdef CONFIG_HOTPLUG_CPU
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-static DEFINE_PER_CPU(u32 [NR_REG_BANKS], irqmasks);
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+static DEFINE_PER_CPU(u32 [MAX_NR_REG_BANKS], irqmasks);
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static void _wakeupgen_save_masks(unsigned int cpu)
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{
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u8 i;
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- for (i = 0; i < NR_REG_BANKS; i++)
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+ for (i = 0; i < irq_banks; i++)
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per_cpu(irqmasks, cpu)[i] = wakeupgen_readl(i, cpu);
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}
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@@ -160,7 +165,7 @@ static void _wakeupgen_restore_masks(unsigned int cpu)
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{
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u8 i;
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- for (i = 0; i < NR_REG_BANKS; i++)
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+ for (i = 0; i < irq_banks; i++)
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wakeupgen_writel(per_cpu(irqmasks, cpu)[i], i, cpu);
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}
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@@ -168,7 +173,7 @@ static void _wakeupgen_set_all(unsigned int cpu, unsigned int reg)
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{
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u8 i;
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- for (i = 0; i < NR_REG_BANKS; i++)
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+ for (i = 0; i < irq_banks; i++)
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wakeupgen_writel(reg, i, cpu);
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}
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@@ -196,25 +201,14 @@ static void wakeupgen_irqmask_all(unsigned int cpu, unsigned int set)
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#endif
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#ifdef CONFIG_CPU_PM
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-/*
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- * Save WakeupGen interrupt context in SAR BANK3. Restore is done by
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- * ROM code. WakeupGen IP is integrated along with GIC to manage the
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- * interrupt wakeups from CPU low power states. It manages
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- * masking/unmasking of Shared peripheral interrupts(SPI). So the
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- * interrupt enable/disable control should be in sync and consistent
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- * at WakeupGen and GIC so that interrupts are not lost.
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- */
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-static void irq_save_context(void)
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+static inline void omap4_irq_save_context(void)
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{
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u32 i, val;
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if (omap_rev() == OMAP4430_REV_ES1_0)
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return;
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- if (!sar_base)
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- sar_base = omap4_get_sar_ram_base();
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-
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- for (i = 0; i < NR_REG_BANKS; i++) {
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+ for (i = 0; i < irq_banks; i++) {
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/* Save the CPUx interrupt mask for IRQ 0 to 127 */
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val = wakeupgen_readl(i, 0);
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sar_writel(val, WAKEUPGENENB_OFFSET_CPU0, i);
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@@ -254,6 +248,53 @@ static void irq_save_context(void)
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val = __raw_readl(sar_base + SAR_BACKUP_STATUS_OFFSET);
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val |= SAR_BACKUP_STATUS_WAKEUPGEN;
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__raw_writel(val, sar_base + SAR_BACKUP_STATUS_OFFSET);
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+
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+}
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+
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+static inline void omap5_irq_save_context(void)
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+{
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+ u32 i, val;
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+
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+ for (i = 0; i < irq_banks; i++) {
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+ /* Save the CPUx interrupt mask for IRQ 0 to 159 */
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+ val = wakeupgen_readl(i, 0);
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+ sar_writel(val, OMAP5_WAKEUPGENENB_OFFSET_CPU0, i);
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+ val = wakeupgen_readl(i, 1);
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+ sar_writel(val, OMAP5_WAKEUPGENENB_OFFSET_CPU1, i);
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+ sar_writel(0x0, OMAP5_WAKEUPGENENB_SECURE_OFFSET_CPU0, i);
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+ sar_writel(0x0, OMAP5_WAKEUPGENENB_SECURE_OFFSET_CPU1, i);
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+ }
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+
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+ /* Save AuxBoot* registers */
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+ val = __raw_readl(wakeupgen_base + OMAP_AUX_CORE_BOOT_0);
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+ __raw_writel(val, sar_base + OMAP5_AUXCOREBOOT0_OFFSET);
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+ val = __raw_readl(wakeupgen_base + OMAP_AUX_CORE_BOOT_0);
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+ __raw_writel(val, sar_base + OMAP5_AUXCOREBOOT1_OFFSET);
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+
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+ /* Set the Backup Bit Mask status */
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+ val = __raw_readl(sar_base + OMAP5_SAR_BACKUP_STATUS_OFFSET);
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+ val |= SAR_BACKUP_STATUS_WAKEUPGEN;
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+ __raw_writel(val, sar_base + OMAP5_SAR_BACKUP_STATUS_OFFSET);
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+
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+}
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+
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+/*
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+ * Save WakeupGen interrupt context in SAR BANK3. Restore is done by
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+ * ROM code. WakeupGen IP is integrated along with GIC to manage the
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+ * interrupt wakeups from CPU low power states. It manages
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+ * masking/unmasking of Shared peripheral interrupts(SPI). So the
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+ * interrupt enable/disable control should be in sync and consistent
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+ * at WakeupGen and GIC so that interrupts are not lost.
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+ */
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+static void irq_save_context(void)
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+{
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+ if (!sar_base)
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+ sar_base = omap4_get_sar_ram_base();
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+
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+ if (soc_is_omap54xx())
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+ omap5_irq_save_context();
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+ else
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+ omap4_irq_save_context();
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}
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/*
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@@ -262,9 +303,14 @@ static void irq_save_context(void)
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static void irq_sar_clear(void)
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{
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u32 val;
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- val = __raw_readl(sar_base + SAR_BACKUP_STATUS_OFFSET);
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+ u32 offset = SAR_BACKUP_STATUS_OFFSET;
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+
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+ if (soc_is_omap54xx())
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+ offset = OMAP5_SAR_BACKUP_STATUS_OFFSET;
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+
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+ val = __raw_readl(sar_base + offset);
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val &= ~SAR_BACKUP_STATUS_WAKEUPGEN;
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- __raw_writel(val, sar_base + SAR_BACKUP_STATUS_OFFSET);
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+ __raw_writel(val, sar_base + offset);
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}
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/*
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@@ -336,13 +382,25 @@ static struct notifier_block irq_notifier_block = {
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static void __init irq_pm_init(void)
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{
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- cpu_pm_register_notifier(&irq_notifier_block);
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+ /* FIXME: Remove this when MPU OSWR support is added */
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+ if (!soc_is_omap54xx())
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+ cpu_pm_register_notifier(&irq_notifier_block);
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}
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#else
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static void __init irq_pm_init(void)
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{}
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#endif
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+void __iomem *omap_get_wakeupgen_base(void)
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+{
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+ return wakeupgen_base;
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+}
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+
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+int omap_secure_apis_support(void)
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+{
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+ return omap_secure_apis;
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+}
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+
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/*
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* Initialise the wakeupgen module.
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*/
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@@ -358,12 +416,18 @@ int __init omap_wakeupgen_init(void)
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}
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/* Static mapping, never released */
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- wakeupgen_base = ioremap(OMAP44XX_WKUPGEN_BASE, SZ_4K);
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+ wakeupgen_base = ioremap(OMAP_WKUPGEN_BASE, SZ_4K);
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if (WARN_ON(!wakeupgen_base))
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return -ENOMEM;
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+ if (cpu_is_omap44xx()) {
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+ irq_banks = OMAP4_NR_BANKS;
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+ max_irqs = OMAP4_NR_IRQS;
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+ omap_secure_apis = 1;
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+ }
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+
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/* Clear all IRQ bitmasks at wakeupGen level */
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- for (i = 0; i < NR_REG_BANKS; i++) {
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+ for (i = 0; i < irq_banks; i++) {
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wakeupgen_writel(0, i, CPU0_ID);
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wakeupgen_writel(0, i, CPU1_ID);
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}
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@@ -382,7 +446,7 @@ int __init omap_wakeupgen_init(void)
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*/
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/* Associate all the IRQs to boot CPU like GIC init does. */
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- for (i = 0; i < NR_IRQS; i++)
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+ for (i = 0; i < max_irqs; i++)
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irq_target_cpu[i] = boot_cpu;
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irq_hotplug_init();
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