diff options
Diffstat (limited to 'target/linux/ramips/patches-4.3/0053-gic.patch')
| -rw-r--r-- | target/linux/ramips/patches-4.3/0053-gic.patch | 305 |
1 files changed, 0 insertions, 305 deletions
diff --git a/target/linux/ramips/patches-4.3/0053-gic.patch b/target/linux/ramips/patches-4.3/0053-gic.patch deleted file mode 100644 index c20cedf48e..0000000000 --- a/target/linux/ramips/patches-4.3/0053-gic.patch +++ /dev/null @@ -1,305 +0,0 @@ -From 7b042645c1bd6407b1f7d9aa5785868e7e14b860 Mon Sep 17 00:00:00 2001 -From: John Crispin <blogic@openwrt.org> -Date: Mon, 7 Dec 2015 18:40:16 +0100 -Subject: [PATCH 53/53] gic - ---- - arch/mips/ralink/Kconfig | 1 + - arch/mips/ralink/Makefile | 2 +- - arch/mips/ralink/irq-gic.c | 212 ++------------------------------------------ - 3 files changed, 11 insertions(+), 204 deletions(-) - ---- a/arch/mips/ralink/Kconfig -+++ b/arch/mips/ralink/Kconfig -@@ -51,9 +51,9 @@ - select SYS_SUPPORTS_MULTITHREADING - select SYS_SUPPORTS_SMP - select SYS_SUPPORTS_MIPS_CMP -+ select MIPS_GIC - select IRQ_GIC - select HW_HAS_PCI -- - endchoice - - choice ---- a/arch/mips/ralink/Makefile -+++ b/arch/mips/ralink/Makefile -@@ -13,7 +13,7 @@ - obj-$(CONFIG_RALINK_ILL_ACC) += ill_acc.o - - obj-$(CONFIG_IRQ_INTC) += irq.o --obj-$(CONFIG_IRQ_GIC) += irq-gic.o -+obj-$(CONFIG_MIPS_GIC_IPI) += irq-gic.o - obj-$(CONFIG_MIPS_MT_SMP) += malta-amon.o - - obj-$(CONFIG_SOC_RT288X) += rt288x.o ---- a/arch/mips/ralink/irq-gic.c -+++ b/arch/mips/ralink/irq-gic.c -@@ -16,248 +16,22 @@ - #include <asm/irq.h> - #include <asm/setup.h> - --#include <asm/gic.h> -+#include <asm/mips-cm.h> -+#include <linux/irqchip/mips-gic.h> - - #include <asm/mach-ralink/mt7621.h> --#define GIC_BASE_ADDR 0x1fbc0000 - --unsigned long _gcmp_base; --static int gic_resched_int_base = 56; --static int gic_call_int_base = 60; --static struct irq_chip *irq_gic; --static struct gic_intr_map gic_intr_map[GIC_NUM_INTRS]; -- --#if defined(CONFIG_MIPS_MT_SMP) --static int gic_resched_int_base; --static int gic_call_int_base; -+extern int __init gic_of_init(struct device_node *node, -+ struct device_node *parent); - --#define GIC_RESCHED_INT(cpu) (gic_resched_int_base+(cpu)) --#define GIC_CALL_INT(cpu) (gic_call_int_base+(cpu)) -- --static irqreturn_t ipi_resched_interrupt(int irq, void *dev_id) --{ -- scheduler_ipi(); -- -- return IRQ_HANDLED; --} -- --static irqreturn_t --ipi_call_interrupt(int irq, void *dev_id) --{ -- smp_call_function_interrupt(); -- -- return IRQ_HANDLED; --} -- --static struct irqaction irq_resched = { -- .handler = ipi_resched_interrupt, -- .flags = IRQF_DISABLED|IRQF_PERCPU, -- .name = "ipi resched" --}; -- --static struct irqaction irq_call = { -- .handler = ipi_call_interrupt, -- .flags = IRQF_DISABLED|IRQF_PERCPU, -- .name = "ipi call" --}; -- --#endif -- --static void __init --gic_fill_map(void) --{ -- int i; -- -- for (i = 0; i < ARRAY_SIZE(gic_intr_map); i++) { -- gic_intr_map[i].cpunum = 0; -- gic_intr_map[i].pin = GIC_CPU_INT0; -- gic_intr_map[i].polarity = GIC_POL_POS; -- gic_intr_map[i].trigtype = GIC_TRIG_LEVEL; -- gic_intr_map[i].flags = 0; -- } -- --#if defined(CONFIG_MIPS_MT_SMP) -- { -- int cpu; -- -- gic_call_int_base = ARRAY_SIZE(gic_intr_map) - nr_cpu_ids; -- gic_resched_int_base = gic_call_int_base - nr_cpu_ids; -- -- i = gic_resched_int_base; -- -- for (cpu = 0; cpu < nr_cpu_ids; cpu++) { -- gic_intr_map[i + cpu].cpunum = cpu; -- gic_intr_map[i + cpu].pin = GIC_CPU_INT1; -- gic_intr_map[i + cpu].trigtype = GIC_TRIG_EDGE; -- -- gic_intr_map[i + cpu + nr_cpu_ids].cpunum = cpu; -- gic_intr_map[i + cpu + nr_cpu_ids].pin = GIC_CPU_INT2; -- gic_intr_map[i + cpu + nr_cpu_ids].trigtype = GIC_TRIG_EDGE; -- } -- } --#endif --} -- --void --gic_irq_ack(struct irq_data *d) --{ -- int irq = (d->irq - gic_irq_base); -- -- GIC_CLR_INTR_MASK(irq); -- -- if (gic_irq_flags[irq] & GIC_TRIG_EDGE) -- GICWRITE(GIC_REG(SHARED, GIC_SH_WEDGE), irq); --} -- --void --gic_finish_irq(struct irq_data *d) --{ -- GIC_SET_INTR_MASK(d->irq - gic_irq_base); --} -- --void __init --gic_platform_init(int irqs, struct irq_chip *irq_controller) --{ -- irq_gic = irq_controller; --} -- --static void --gic_irqdispatch(void) --{ -- unsigned int irq = gic_get_int(); -- -- if (likely(irq < GIC_NUM_INTRS)) -- do_IRQ(MIPS_GIC_IRQ_BASE + irq); -- else { -- pr_debug("Spurious GIC Interrupt!\n"); -- spurious_interrupt(); -- } -- --} -- --static void --vi_timer_irqdispatch(void) --{ -- do_IRQ(cp0_compare_irq); --} -- --#if defined(CONFIG_MIPS_MT_SMP) --unsigned int --plat_ipi_call_int_xlate(unsigned int cpu) --{ -- return GIC_CALL_INT(cpu); --} -- --unsigned int --plat_ipi_resched_int_xlate(unsigned int cpu) --{ -- return GIC_RESCHED_INT(cpu); --} --#endif -- --asmlinkage void --plat_irq_dispatch(void) --{ -- unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM; -- -- if (unlikely(!pending)) { -- pr_err("Spurious CP0 Interrupt!\n"); -- spurious_interrupt(); -- } else { -- if (pending & CAUSEF_IP7) -- do_IRQ(cp0_compare_irq); -- -- if (pending & (CAUSEF_IP4 | CAUSEF_IP3 | CAUSEF_IP2)) -- gic_irqdispatch(); -- } --} -- --unsigned int __cpuinit --get_c0_compare_int(void) --{ -- return CP0_LEGACY_COMPARE_IRQ; --} -- --static int --gic_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw) --{ -- irq_set_chip_and_handler(irq, irq_gic, --#if defined(CONFIG_MIPS_MT_SMP) -- (hw >= gic_resched_int_base) ? -- handle_percpu_irq : --#endif -- handle_level_irq); -- -- return 0; --} -- --static const struct irq_domain_ops irq_domain_ops = { -- .xlate = irq_domain_xlate_onecell, -- .map = gic_map, --}; -- --static int __init --of_gic_init(struct device_node *node, -- struct device_node *parent) -+unsigned int get_c0_compare_int(void) - { -- struct irq_domain *domain; -- struct resource gcmp = { 0 }, gic = { 0 }; -- unsigned int gic_rev; -- int i; -- -- if (of_address_to_resource(node, 0, &gic)) -- panic("Failed to get gic memory range"); -- if (request_mem_region(gic.start, resource_size(&gic), -- gic.name) < 0) -- panic("Failed to request gic memory"); -- if (of_address_to_resource(node, 2, &gcmp)) -- panic("Failed to get gic memory range"); -- if (request_mem_region(gcmp.start, resource_size(&gcmp), -- gcmp.name) < 0) -- panic("Failed to request gcmp memory"); -- -- _gcmp_base = (unsigned long) ioremap_nocache(gcmp.start, resource_size(&gcmp)); -- if (!_gcmp_base) -- panic("Failed to remap gcmp memory\n"); -- -- /* tell the gcmp where to find the gic */ -- write_gcr_gic_base(GIC_BASE_ADDR | CM_GCR_GIC_BASE_GICEN_MSK); -- gic_present = 1; -- if (cpu_has_vint) { -- set_vi_handler(2, gic_irqdispatch); -- set_vi_handler(3, gic_irqdispatch); -- set_vi_handler(4, gic_irqdispatch); -- set_vi_handler(7, vi_timer_irqdispatch); -- } -- -- gic_fill_map(); -- -- gic_init(gic.start, resource_size(&gic), gic_intr_map, -- ARRAY_SIZE(gic_intr_map), MIPS_GIC_IRQ_BASE); -- -- GICREAD(GIC_REG(SHARED, GIC_SH_REVISIONID), gic_rev); -- pr_info("gic: revision %d.%d\n", (gic_rev >> 8) & 0xff, gic_rev & 0xff); -- -- domain = irq_domain_add_legacy(node, GIC_NUM_INTRS, MIPS_GIC_IRQ_BASE, -- 0, &irq_domain_ops, NULL); -- if (!domain) -- panic("Failed to add irqdomain"); -- --#if defined(CONFIG_MIPS_MT_SMP) -- for (i = 0; i < nr_cpu_ids; i++) { -- setup_irq(MIPS_GIC_IRQ_BASE + GIC_RESCHED_INT(i), &irq_resched); -- setup_irq(MIPS_GIC_IRQ_BASE + GIC_CALL_INT(i), &irq_call); -- } --#endif -- -- change_c0_status(ST0_IM, STATUSF_IP7 | STATUSF_IP4 | STATUSF_IP3 | -- STATUSF_IP2); -- return 0; -+ return gic_get_c0_compare_int(); - } - - static struct of_device_id __initdata of_irq_ids[] = { -- { .compatible = "mti,cpu-interrupt-controller", .data = mips_cpu_intc_init }, -- { .compatible = "ralink,mt7621-gic", .data = of_gic_init }, -+ { .compatible = "mti,cpu-interrupt-controller", .data = mips_cpu_irq_of_init }, -+ { .compatible = "mti,gic", .data = gic_of_init }, - {}, - }; - ---- a/drivers/irqchip/irq-mips-gic.c -+++ b/drivers/irqchip/irq-mips-gic.c -@@ -864,7 +864,7 @@ - __gic_init(gic_base_addr, gic_addrspace_size, cpu_vec, irqbase, NULL); - } - --static int __init gic_of_init(struct device_node *node, -+int __init gic_of_init(struct device_node *node, - struct device_node *parent) - { - struct resource res; |