diff options
Diffstat (limited to 'arch/mips/mti-sead3')
| -rw-r--r-- | arch/mips/mti-sead3/sead3-ehci.c | 8 | ||||
| -rw-r--r-- | arch/mips/mti-sead3/sead3-int.c | 131 | ||||
| -rw-r--r-- | arch/mips/mti-sead3/sead3-net.c | 14 | ||||
| -rw-r--r-- | arch/mips/mti-sead3/sead3-platform.c | 18 | ||||
| -rw-r--r-- | arch/mips/mti-sead3/sead3-serial.c | 45 | ||||
| -rw-r--r-- | arch/mips/mti-sead3/sead3-time.c | 35 |
6 files changed, 49 insertions, 202 deletions
diff --git a/arch/mips/mti-sead3/sead3-ehci.c b/arch/mips/mti-sead3/sead3-ehci.c index 772fc056a92d..014dd7ba4d68 100644 --- a/arch/mips/mti-sead3/sead3-ehci.c +++ b/arch/mips/mti-sead3/sead3-ehci.c @@ -9,6 +9,9 @@ #include <linux/irq.h> #include <linux/dma-mapping.h> #include <linux/platform_device.h> +#include <linux/irqchip/mips-gic.h> + +#include <asm/mips-boards/sead3int.h> struct resource ehci_resources[] = { { @@ -17,7 +20,6 @@ struct resource ehci_resources[] = { .flags = IORESOURCE_MEM }, { - .start = MIPS_CPU_IRQ_BASE + 2, .flags = IORESOURCE_IRQ } }; @@ -37,6 +39,10 @@ static struct platform_device ehci_device = { static int __init ehci_init(void) { + if (gic_present) + ehci_resources[1].start = MIPS_GIC_IRQ_BASE + GIC_INT_EHCI; + else + ehci_resources[1].start = MIPS_CPU_IRQ_BASE + CPU_INT_EHCI; return platform_device_register(&ehci_device); } diff --git a/arch/mips/mti-sead3/sead3-int.c b/arch/mips/mti-sead3/sead3-int.c index 6a560ac03def..e31e17f81eef 100644 --- a/arch/mips/mti-sead3/sead3-int.c +++ b/arch/mips/mti-sead3/sead3-int.c @@ -7,9 +7,9 @@ */ #include <linux/init.h> #include <linux/irq.h> +#include <linux/irqchip/mips-gic.h> #include <linux/io.h> -#include <asm/gic.h> #include <asm/irq_cpu.h> #include <asm/setup.h> @@ -20,138 +20,23 @@ #define SEAD_CONFIG_BASE 0x1b100110 #define SEAD_CONFIG_SIZE 4 -static unsigned long sead3_config_reg; - -/* - * This table defines the setup for each external GIC interrupt. It is - * indexed by interrupt number. - */ -#define GIC_CPU_NMI GIC_MAP_TO_NMI_MSK -static struct gic_intr_map gic_intr_map[GIC_NUM_INTRS] = { - { 0, GIC_CPU_INT4, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT }, - { 0, GIC_CPU_INT3, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT }, - { 0, GIC_CPU_INT2, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT }, - { 0, GIC_CPU_INT2, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT }, - { 0, GIC_CPU_INT1, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT }, - { 0, GIC_CPU_INT0, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT }, - { 0, GIC_CPU_INT0, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT }, - { 0, GIC_CPU_INT0, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT }, - { 0, GIC_CPU_INT0, GIC_POL_POS, GIC_TRIG_LEVEL, GIC_FLAG_TRANSPARENT }, - { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED }, - { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED }, - { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED }, - { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED }, - { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED }, - { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED }, - { GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED, GIC_UNUSED }, -}; - -asmlinkage void plat_irq_dispatch(void) -{ - unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM; - int irq; - - irq = (fls(pending) - CAUSEB_IP - 1); - if (irq >= 0) - do_IRQ(MIPS_CPU_IRQ_BASE + irq); - else - spurious_interrupt(); -} +static void __iomem *sead3_config_reg; void __init arch_init_irq(void) { - int i; - - if (!cpu_has_veic) { + if (!cpu_has_veic) mips_cpu_irq_init(); - if (cpu_has_vint) { - /* install generic handler */ - for (i = 0; i < 8; i++) - set_vi_handler(i, plat_irq_dispatch); - } - } - - sead3_config_reg = (unsigned long)ioremap_nocache(SEAD_CONFIG_BASE, - SEAD_CONFIG_SIZE); - gic_present = (REG32(sead3_config_reg) & SEAD_CONFIG_GIC_PRESENT_MSK) >> + sead3_config_reg = ioremap_nocache(SEAD_CONFIG_BASE, SEAD_CONFIG_SIZE); + gic_present = (__raw_readl(sead3_config_reg) & + SEAD_CONFIG_GIC_PRESENT_MSK) >> SEAD_CONFIG_GIC_PRESENT_SHF; pr_info("GIC: %spresent\n", (gic_present) ? "" : "not "); pr_info("EIC: %s\n", (current_cpu_data.options & MIPS_CPU_VEIC) ? "on" : "off"); if (gic_present) - gic_init(GIC_BASE_ADDR, GIC_ADDRSPACE_SZ, gic_intr_map, - ARRAY_SIZE(gic_intr_map), MIPS_GIC_IRQ_BASE); -} - -void gic_enable_interrupt(int irq_vec) -{ - unsigned int i, irq_source; - - /* enable all the interrupts associated with this vector */ - for (i = 0; i < gic_shared_intr_map[irq_vec].num_shared_intr; i++) { - irq_source = gic_shared_intr_map[irq_vec].intr_list[i]; - GIC_SET_INTR_MASK(irq_source); - } - /* enable all local interrupts associated with this vector */ - if (gic_shared_intr_map[irq_vec].local_intr_mask) { - GICWRITE(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR), 0); - GICWRITE(GIC_REG(VPE_OTHER, GIC_VPE_SMASK), - gic_shared_intr_map[irq_vec].local_intr_mask); - } + gic_init(GIC_BASE_ADDR, GIC_ADDRSPACE_SZ, CPU_INT_GIC, + MIPS_GIC_IRQ_BASE); } -void gic_disable_interrupt(int irq_vec) -{ - unsigned int i, irq_source; - - /* disable all the interrupts associated with this vector */ - for (i = 0; i < gic_shared_intr_map[irq_vec].num_shared_intr; i++) { - irq_source = gic_shared_intr_map[irq_vec].intr_list[i]; - GIC_CLR_INTR_MASK(irq_source); - } - /* disable all local interrupts associated with this vector */ - if (gic_shared_intr_map[irq_vec].local_intr_mask) { - GICWRITE(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR), 0); - GICWRITE(GIC_REG(VPE_OTHER, GIC_VPE_RMASK), - gic_shared_intr_map[irq_vec].local_intr_mask); - } -} - -void gic_irq_ack(struct irq_data *d) -{ - GIC_CLR_INTR_MASK(d->irq - gic_irq_base); -} - -void gic_finish_irq(struct irq_data *d) -{ - unsigned int irq = (d->irq - gic_irq_base); - unsigned int i, irq_source; - - /* Clear edge detectors. */ - for (i = 0; i < gic_shared_intr_map[irq].num_shared_intr; i++) { - irq_source = gic_shared_intr_map[irq].intr_list[i]; - if (gic_irq_flags[irq_source] & GIC_TRIG_EDGE) - GICWRITE(GIC_REG(SHARED, GIC_SH_WEDGE), irq_source); - } - - /* Enable interrupts. */ - GIC_SET_INTR_MASK(irq); -} - -void __init gic_platform_init(int irqs, struct irq_chip *irq_controller) -{ - int i; - - /* - * For non-EIC mode, we want to setup the GIC in pass-through - * mode, as if the GIC didn't exist. Do not map any interrupts - * for an external interrupt controller. - */ - if (!cpu_has_veic) - return; - - for (i = gic_irq_base; i < (gic_irq_base + irqs); i++) - irq_set_chip_and_handler(i, irq_controller, handle_percpu_irq); -} diff --git a/arch/mips/mti-sead3/sead3-net.c b/arch/mips/mti-sead3/sead3-net.c index dd11e7eb771c..46176b804576 100644 --- a/arch/mips/mti-sead3/sead3-net.c +++ b/arch/mips/mti-sead3/sead3-net.c @@ -7,9 +7,12 @@ */ #include <linux/module.h> #include <linux/irq.h> +#include <linux/irqchip/mips-gic.h> #include <linux/platform_device.h> #include <linux/smsc911x.h> +#include <asm/mips-boards/sead3int.h> + static struct smsc911x_platform_config sead3_smsc911x_data = { .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, @@ -17,14 +20,13 @@ static struct smsc911x_platform_config sead3_smsc911x_data = { .phy_interface = PHY_INTERFACE_MODE_MII, }; -struct resource sead3_net_resourcess[] = { +struct resource sead3_net_resources[] = { { .start = 0x1f010000, .end = 0x1f01ffff, .flags = IORESOURCE_MEM }, { - .start = MIPS_CPU_IRQ_BASE + 6, .flags = IORESOURCE_IRQ } }; @@ -35,12 +37,16 @@ static struct platform_device sead3_net_device = { .dev = { .platform_data = &sead3_smsc911x_data, }, - .num_resources = ARRAY_SIZE(sead3_net_resourcess), - .resource = sead3_net_resourcess + .num_resources = ARRAY_SIZE(sead3_net_resources), + .resource = sead3_net_resources }; static int __init sead3_net_init(void) { + if (gic_present) + sead3_net_resources[1].start = MIPS_GIC_IRQ_BASE + GIC_INT_NET; + else + sead3_net_resources[1].start = MIPS_CPU_IRQ_BASE + CPU_INT_NET; return platform_device_register(&sead3_net_device); } diff --git a/arch/mips/mti-sead3/sead3-platform.c b/arch/mips/mti-sead3/sead3-platform.c index 6c3b33dbed18..53ee6f1f018d 100644 --- a/arch/mips/mti-sead3/sead3-platform.c +++ b/arch/mips/mti-sead3/sead3-platform.c @@ -7,12 +7,15 @@ */ #include <linux/module.h> #include <linux/init.h> +#include <linux/irqchip/mips-gic.h> #include <linux/serial_8250.h> -#define UART(base, int) \ +#include <asm/mips-boards/sead3int.h> + +#define UART(base) \ { \ .mapbase = base, \ - .irq = int, \ + .irq = -1, \ .uartclk = 14745600, \ .iotype = UPIO_MEM32, \ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP, \ @@ -20,8 +23,8 @@ } static struct plat_serial8250_port uart8250_data[] = { - UART(0x1f000900, MIPS_CPU_IRQ_BASE + 4), /* ttyS0 = USB */ - UART(0x1f000800, MIPS_CPU_IRQ_BASE + 4), /* ttyS1 = RS232 */ + UART(0x1f000900), /* ttyS0 = USB */ + UART(0x1f000800), /* ttyS1 = RS232 */ { }, }; @@ -35,6 +38,13 @@ static struct platform_device uart8250_device = { static int __init uart8250_init(void) { + if (gic_present) { + uart8250_data[0].irq = MIPS_GIC_IRQ_BASE + GIC_INT_UART0; + uart8250_data[1].irq = MIPS_GIC_IRQ_BASE + GIC_INT_UART1; + } else { + uart8250_data[0].irq = MIPS_CPU_IRQ_BASE + CPU_INT_UART0; + uart8250_data[1].irq = MIPS_CPU_IRQ_BASE + CPU_INT_UART1; + } return platform_device_register(&uart8250_device); } diff --git a/arch/mips/mti-sead3/sead3-serial.c b/arch/mips/mti-sead3/sead3-serial.c deleted file mode 100644 index bc52705bbee4..000000000000 --- a/arch/mips/mti-sead3/sead3-serial.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. - */ -#include <linux/module.h> -#include <linux/init.h> -#include <linux/serial_8250.h> - -#define UART(base, int) \ -{ \ - .mapbase = base, \ - .irq = int, \ - .uartclk = 14745600, \ - .iotype = UPIO_MEM32, \ - .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP, \ - .regshift = 2, \ -} - -static struct plat_serial8250_port uart8250_data[] = { - UART(0x1f000900, MIPS_CPU_IRQ_BASE + 4), /* ttyS0 = USB */ - UART(0x1f000800, MIPS_CPU_IRQ_BASE + 4), /* ttyS1 = RS232 */ - { }, -}; - -static struct platform_device uart8250_device = { - .name = "serial8250", - .id = PLAT8250_DEV_PLATFORM, - .dev = { - .platform_data = uart8250_data, - }, -}; - -static int __init uart8250_init(void) -{ - return platform_device_register(&uart8250_device); -} - -module_init(uart8250_init); - -MODULE_AUTHOR("Chris Dearman <chris@mips.com>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("8250 UART probe driver for the SEAD-3 platform"); diff --git a/arch/mips/mti-sead3/sead3-time.c b/arch/mips/mti-sead3/sead3-time.c index 678d03d53c60..ec1dd2491f96 100644 --- a/arch/mips/mti-sead3/sead3-time.c +++ b/arch/mips/mti-sead3/sead3-time.c @@ -6,6 +6,7 @@ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. */ #include <linux/init.h> +#include <linux/irqchip/mips-gic.h> #include <asm/cpu.h> #include <asm/setup.h> @@ -13,19 +14,6 @@ #include <asm/irq.h> #include <asm/mips-boards/generic.h> -static int mips_cpu_timer_irq; -static int mips_cpu_perf_irq; - -static void mips_timer_dispatch(void) -{ - do_IRQ(mips_cpu_timer_irq); -} - -static void mips_perf_dispatch(void) -{ - do_IRQ(mips_cpu_perf_irq); -} - static void __iomem *status_reg = (void __iomem *)0xbf000410; /* @@ -81,21 +69,20 @@ void read_persistent_clock(struct timespec *ts) ts->tv_nsec = 0; } -static void __init plat_perf_setup(void) +int get_c0_perfcount_int(void) { - if (cp0_perfcount_irq >= 0) { - if (cpu_has_vint) - set_vi_handler(cp0_perfcount_irq, mips_perf_dispatch); - mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq; - } + if (gic_present) + return gic_get_c0_compare_int(); + if (cp0_perfcount_irq >= 0) + return MIPS_CPU_IRQ_BASE + cp0_perfcount_irq; + return -1; } unsigned int get_c0_compare_int(void) { - if (cpu_has_vint) - set_vi_handler(cp0_compare_irq, mips_timer_dispatch); - mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq; - return mips_cpu_timer_irq; + if (gic_present) + return gic_get_c0_compare_int(); + return MIPS_CPU_IRQ_BASE + cp0_compare_irq; } void __init plat_time_init(void) @@ -108,6 +95,4 @@ void __init plat_time_init(void) (est_freq % 1000000) * 100 / 1000000); mips_scroll_message(); - - plat_perf_setup(); } |