diff options
19 files changed, 698 insertions, 441 deletions
diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h new file mode 100644 index 000000000000..e5bdf8c529ff --- /dev/null +++ b/arch/mips/include/asm/netlogic/common.h @@ -0,0 +1,56 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _NETLOGIC_COMMON_H_ +#define _NETLOGIC_COMMON_H_ + +/* + * Common SMP definitions + */ +struct irq_desc; +extern struct plat_smp_ops nlm_smp_ops; +extern char nlm_reset_entry[], nlm_reset_entry_end[]; +void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc); +void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc); +void nlm_smp_irq_init(void); +void prom_pre_boot_secondary_cpus(void); +int nlm_wakeup_secondary_cpus(u32 wakeup_mask); +void nlm_boot_smp_nmi(void); + +/* + * Misc. + */ +extern unsigned long nlm_common_ebase; +unsigned int nlm_get_cpu_frequency(void); +#endif /* _NETLOGIC_COMMON_H_ */ diff --git a/arch/mips/include/asm/netlogic/haldefs.h b/arch/mips/include/asm/netlogic/haldefs.h new file mode 100644 index 000000000000..e3264c19aabe --- /dev/null +++ b/arch/mips/include/asm/netlogic/haldefs.h @@ -0,0 +1,142 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __NLM_HAL_HALDEFS_H__ +#define __NLM_HAL_HALDEFS_H__ + +/* + * This file contains platform specific memory mapped IO implementation + * and will provide a way to read 32/64 bit memory mapped registers in + * all ABIs + */ +/* + * For o32 compilation, we have to disable interrupts and enable KX bit to + * access 64 bit addresses or data. + * + * We need to disable interrupts because we save just the lower 32 bits of + * registers in interrupt handling. So if we get hit by an interrupt while + * using the upper 32 bits of a register, we lose. + */ +static inline uint32_t nlm_save_flags_kx(void) +{ + return change_c0_status(ST0_KX | ST0_IE, ST0_KX); +} + +static inline uint32_t nlm_save_flags_cop2(void) +{ + return change_c0_status(ST0_CU2 | ST0_IE, ST0_CU2); +} + +static inline void nlm_restore_flags(uint32_t sr) +{ + write_c0_status(sr); +} + +/* + * The n64 implementations are simple, the o32 implementations when they + * are added, will have to disable interrupts and enable KX before doing + * 64 bit ops. + */ +static inline uint32_t +nlm_read_reg(uint64_t base, uint32_t reg) +{ + volatile uint32_t *addr = (volatile uint32_t *)(long)base + reg; + + return *addr; +} + +static inline void +nlm_write_reg(uint64_t base, uint32_t reg, uint32_t val) +{ + volatile uint32_t *addr = (volatile uint32_t *)(long)base + reg; + + *addr = val; +} + +static inline uint64_t +nlm_read_reg64(uint64_t base, uint32_t reg) +{ + uint64_t addr = base + (reg >> 1) * sizeof(uint64_t); + volatile uint64_t *ptr = (volatile uint64_t *)(long)addr; + + return *ptr; +} + +static inline void +nlm_write_reg64(uint64_t base, uint32_t reg, uint64_t val) +{ + uint64_t addr = base + (reg >> 1) * sizeof(uint64_t); + volatile uint64_t *ptr = (volatile uint64_t *)(long)addr; + + *ptr = val; +} + +/* + * Routines to store 32/64 bit values to 64 bit addresses, + * used when going thru XKPHYS to access registers + */ +static inline uint32_t +nlm_read_reg_xkphys(uint64_t base, uint32_t reg) +{ + return nlm_read_reg(base, reg); +} + +static inline void +nlm_write_reg_xkphys(uint64_t base, uint32_t reg, uint32_t val) +{ + nlm_write_reg(base, reg, val); +} + +static inline uint64_t +nlm_read_reg64_xkphys(uint64_t base, uint32_t reg) +{ + return nlm_read_reg64(base, reg); +} + +static inline void +nlm_write_reg64_xkphys(uint64_t base, uint32_t reg, uint64_t val) +{ + nlm_write_reg64(base, reg, val); +} + +/* Location where IO base is mapped */ +extern uint64_t nlm_io_base; + +static inline uint64_t +nlm_mmio_base(uint32_t devoffset) +{ + return nlm_io_base + devoffset; +} + +#endif diff --git a/arch/mips/include/asm/netlogic/xlr/iomap.h b/arch/mips/include/asm/netlogic/xlr/iomap.h index 2e3a4dd53045..2e768f032e83 100644 --- a/arch/mips/include/asm/netlogic/xlr/iomap.h +++ b/arch/mips/include/asm/netlogic/xlr/iomap.h @@ -106,26 +106,4 @@ #define DEFAULT_HT_TYPE0_CFG_BASE 0x16000000 #define DEFAULT_HT_TYPE1_CFG_BASE 0x17000000 -#ifndef __ASSEMBLY__ -#include <linux/types.h> -#include <asm/byteorder.h> - -typedef volatile __u32 nlm_reg_t; -extern unsigned long netlogic_io_base; - -/* FIXME read once in write_reg */ -#ifdef CONFIG_CPU_LITTLE_ENDIAN -#define netlogic_read_reg(base, offset) ((base)[(offset)]) -#define netlogic_write_reg(base, offset, value) ((base)[(offset)] = (value)) -#else -#define netlogic_read_reg(base, offset) (be32_to_cpu((base)[(offset)])) -#define netlogic_write_reg(base, offset, value) \ - ((base)[(offset)] = cpu_to_be32((value))) -#endif - -#define netlogic_read_reg_le32(base, offset) (le32_to_cpu((base)[(offset)])) -#define netlogic_write_reg_le32(base, offset, value) \ - ((base)[(offset)] = cpu_to_le32((value))) -#define netlogic_io_mmio(offset) ((nlm_reg_t *)(netlogic_io_base+(offset))) -#endif /* __ASSEMBLY__ */ #endif diff --git a/arch/mips/include/asm/netlogic/xlr/pic.h b/arch/mips/include/asm/netlogic/xlr/pic.h index 5cceb746f080..868013e62f32 100644 --- a/arch/mips/include/asm/netlogic/xlr/pic.h +++ b/arch/mips/include/asm/netlogic/xlr/pic.h @@ -193,39 +193,72 @@ /* end XLS */ #ifndef __ASSEMBLY__ -static inline void pic_send_ipi(u32 ipi) + +#define PIC_IRQ_IS_EDGE_TRIGGERED(irq) (((irq) >= PIC_TIMER_0_IRQ) && \ + ((irq) <= PIC_TIMER_7_IRQ)) +#define PIC_IRQ_IS_IRT(irq) (((irq) >= PIC_IRT_FIRST_IRQ) && \ + ((irq) <= PIC_IRT_LAST_IRQ)) + +static inline int +nlm_irq_to_irt(int irq) { - nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + if (PIC_IRQ_IS_IRT(irq) == 0) + return -1; - netlogic_write_reg(mmio, PIC_IPI, ipi); + return PIC_IRQ_TO_INTR(irq); } -static inline u32 pic_read_control(void) +static inline int +nlm_irt_to_irq(int irt) { - nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); - return netlogic_read_reg(mmio, PIC_CTRL); + return PIC_INTR_TO_IRQ(irt); } -static inline void pic_write_control(u32 control) +static inline void +nlm_pic_enable_irt(uint64_t base, int irt) { - nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + uint32_t reg; - netlogic_write_reg(mmio, PIC_CTRL, control); + reg = nlm_read_reg(base, PIC_IRT_1(irt)); + nlm_write_reg(base, PIC_IRT_1(irt), reg | (1u << 31)); } -static inline void pic_update_control(u32 control) +static inline void +nlm_pic_disable_irt(uint64_t base, int irt) { - nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + uint32_t reg; - netlogic_write_reg(mmio, PIC_CTRL, - (control | netlogic_read_reg(mmio, PIC_CTRL))); + reg = nlm_read_reg(base, PIC_IRT_1(irt)); + nlm_write_reg(base, PIC_IRT_1(irt), reg & ~(1u << 31)); } -#define PIC_IRQ_IS_EDGE_TRIGGERED(irq) (((irq) >= PIC_TIMER_0_IRQ) && \ - ((irq) <= PIC_TIMER_7_IRQ)) -#define PIC_IRQ_IS_IRT(irq) (((irq) >= PIC_IRT_FIRST_IRQ) && \ - ((irq) <= PIC_IRT_LAST_IRQ)) -#endif +static inline void +nlm_pic_send_ipi(uint64_t base, int hwt, int irq, int nmi) +{ + unsigned int tid, pid; + + tid = hwt & 0x3; + pid = (hwt >> 2) & 0x07; + nlm_write_reg(base, PIC_IPI, + (pid << 20) | (tid << 16) | (nmi << 8) | irq); +} + +static inline void +nlm_pic_ack(uint64_t base, int irt) +{ + nlm_write_reg(base, PIC_INT_ACK, 1u << irt); +} +static inline void +nlm_pic_init_irt(uint64_t base, int irt, int irq, int hwt) +{ + nlm_write_reg(base, PIC_IRT_0(irt), (1u << hwt)); + /* local scheduling, invalid, level by default */ + nlm_write_reg(base, PIC_IRT_1(irt), + (1 << 30) | (1 << 6) | irq); +} + +extern uint64_t nlm_pic_base; +#endif #endif /* _ASM_NLM_XLR_PIC_H */ diff --git a/arch/mips/include/asm/netlogic/xlr/xlr.h b/arch/mips/include/asm/netlogic/xlr/xlr.h index 3e6372692a04..f4d3f7cb6d65 100644 --- a/arch/mips/include/asm/netlogic/xlr/xlr.h +++ b/arch/mips/include/asm/netlogic/xlr/xlr.h @@ -40,17 +40,6 @@ struct uart_port; unsigned int nlm_xlr_uart_in(struct uart_port *, int); void nlm_xlr_uart_out(struct uart_port *, int, int); -/* SMP support functions */ -struct irq_desc; -void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc); -void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc); -int nlm_wakeup_secondary_cpus(u32 wakeup_mask); -void nlm_smp_irq_init(void); -void nlm_boot_smp_nmi(void); -void prom_pre_boot_secondary_cpus(void); - -extern struct plat_smp_ops nlm_smp_ops; -extern unsigned long nlm_common_ebase; /* XLS B silicon "Rook" */ static inline unsigned int nlm_chip_is_xls_b(void) diff --git a/arch/mips/netlogic/Makefile b/arch/mips/netlogic/Makefile new file mode 100644 index 000000000000..797326da3718 --- /dev/null +++ b/arch/mips/netlogic/Makefile @@ -0,0 +1,2 @@ +obj-$(CONFIG_NLM_COMMON) += common/ +obj-$(CONFIG_CPU_XLR) += xlr/ diff --git a/arch/mips/netlogic/Platform b/arch/mips/netlogic/Platform index 18aaf438ee42..7811b107689d 100644 --- a/arch/mips/netlogic/Platform +++ b/arch/mips/netlogic/Platform @@ -12,5 +12,5 @@ cflags-$(CONFIG_CPU_XLR) += $(call cc-option,-march=xlr,-march=mips64) # # NETLOGIC processor support # -platform-$(CONFIG_CPU_XLR) += netlogic/xlr +platform-$(CONFIG_NLM_COMMON) += netlogic/ load-$(CONFIG_NLM_COMMON) += 0xffffffff80100000 diff --git a/arch/mips/netlogic/common/Makefile b/arch/mips/netlogic/common/Makefile new file mode 100644 index 000000000000..d4215783c3e5 --- /dev/null +++ b/arch/mips/netlogic/common/Makefile @@ -0,0 +1,3 @@ +obj-y += irq.o time.o +obj-$(CONFIG_SMP) += smp.o +obj-$(CONFIG_EARLY_PRINTK) += earlycons.o diff --git a/arch/mips/netlogic/xlr/xlr_console.c b/arch/mips/netlogic/common/earlycons.c index 759df0692201..28c8fa7a8503 100644 --- a/arch/mips/netlogic/xlr/xlr_console.c +++ b/arch/mips/netlogic/common/earlycons.c @@ -33,14 +33,19 @@ */ #include <linux/types.h> +#include <linux/serial_reg.h> + +#include <asm/mipsregs.h> +#include <asm/netlogic/haldefs.h> + #include <asm/netlogic/xlr/iomap.h> void prom_putchar(char c) { - nlm_reg_t *mmio; + uint64_t uartbase; - mmio = netlogic_io_mmio(NETLOGIC_IO_UART_0_OFFSET); - while (netlogic_read_reg(mmio, 0x5) == 0) + uartbase = nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET); + while (nlm_read_reg(uartbase, UART_LSR) == 0) ; - netlogic_write_reg(mmio, 0x0, c); + nlm_write_reg(uartbase, UART_TX, c); } diff --git a/arch/mips/netlogic/common/irq.c b/arch/mips/netlogic/common/irq.c new file mode 100644 index 000000000000..dd0dd626cc8f --- /dev/null +++ b/arch/mips/netlogic/common/irq.c @@ -0,0 +1,230 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/linkage.h> +#include <linux/interrupt.h> +#include <linux/spinlock.h> +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/irq.h> + +#include <asm/errno.h> +#include <asm/signal.h> +#include <asm/system.h> +#include <asm/ptrace.h> +#include <asm/mipsregs.h> +#include <asm/thread_info.h> + +#include <asm/netlogic/mips-extns.h> +#include <asm/netlogic/interrupt.h> +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/common.h> + +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> +/* + * These are the routines that handle all the low level interrupt stuff. + * Actions handled here are: initialization of the interrupt map, requesting of + * interrupt lines by handlers, dispatching if interrupts to handlers, probing + * for interrupt lines + */ + +/* Globals */ +static uint64_t nlm_irq_mask; +static DEFINE_SPINLOCK(nlm_pic_lock); + +static void xlp_pic_enable(struct irq_data *d) +{ + unsigned long flags; + int irt; + + irt = nlm_irq_to_irt(d->irq); + if (irt == -1) + return; + spin_lock_irqsave(&nlm_pic_lock, flags); + nlm_pic_enable_irt(nlm_pic_base, irt); + spin_unlock_irqrestore(&nlm_pic_lock, flags); +} + +static void xlp_pic_disable(struct irq_data *d) +{ + unsigned long flags; + int irt; + + irt = nlm_irq_to_irt(d->irq); + if (irt == -1) + return; + spin_lock_irqsave(&nlm_pic_lock, flags); + nlm_pic_disable_irt(nlm_pic_base, irt); + spin_unlock_irqrestore(&nlm_pic_lock, flags); +} + +static void xlp_pic_mask_ack(struct irq_data *d) +{ + uint64_t mask = 1ull << d->irq; + + write_c0_eirr(mask); /* ack by writing EIRR */ +} + +static void xlp_pic_unmask(struct irq_data *d) +{ + void *hd = irq_data_get_irq_handler_data(d); + int irt; + + irt = nlm_irq_to_irt(d->irq); + if (irt == -1) + return; + + if (hd) { + void (*extra_ack)(void *) = hd; + extra_ack(d); + } + /* Ack is a single write, no need to lock */ + nlm_pic_ack(nlm_pic_base, irt); +} + +static struct irq_chip xlp_pic = { + .name = "XLP-PIC", + .irq_enable = xlp_pic_enable, + .irq_disable = xlp_pic_disable, + .irq_mask_ack = xlp_pic_mask_ack, + .irq_unmask = xlp_pic_unmask, +}; + +static void cpuintr_disable(struct irq_data *d) +{ + uint64_t eimr; + uint64_t mask = 1ull << d->irq; + + eimr = read_c0_eimr(); + write_c0_eimr(eimr & ~mask); +} + +static void cpuintr_enable(struct irq_data *d) +{ + uint64_t eimr; + uint64_t mask = 1ull << d->irq; + + eimr = read_c0_eimr(); + write_c0_eimr(eimr | mask); +} + +static void cpuintr_ack(struct irq_data *d) +{ + uint64_t mask = 1ull << d->irq; + + write_c0_eirr(mask); +} + +static void cpuintr_nop(struct irq_data *d) +{ + WARN(d->irq >= PIC_IRQ_BASE, "Bad irq %d", d->irq); +} + +/* + * Chip definition for CPU originated interrupts(timer, msg) and + * IPIs + */ +struct irq_chip nlm_cpu_intr = { + .name = "XLP-CPU-INTR", + .irq_enable = cpuintr_enable, + .irq_disable = cpuintr_disable, + .irq_mask = cpuintr_nop, + .irq_ack = cpuintr_nop, + .irq_eoi = cpuintr_ack, +}; + +void __init init_nlm_common_irqs(void) +{ + int i, irq, irt; + + for (i = 0; i < PIC_IRT_FIRST_IRQ; i++) + irq_set_chip_and_handler(i, &nlm_cpu_intr, handle_percpu_irq); + + for (i = PIC_IRT_FIRST_IRQ; i <= PIC_IRT_LAST_IRQ ; i++) + irq_set_chip_and_handler(i, &xlp_pic, handle_level_irq); + +#ifdef CONFIG_SMP + irq_set_chip_and_handler(IRQ_IPI_SMP_FUNCTION, &nlm_cpu_intr, + nlm_smp_function_ipi_handler); + irq_set_chip_and_handler(IRQ_IPI_SMP_RESCHEDULE, &nlm_cpu_intr, + nlm_smp_resched_ipi_handler); + nlm_irq_mask |= + ((1ULL << IRQ_IPI_SMP_FUNCTION) | (1ULL << IRQ_IPI_SMP_RESCHEDULE)); +#endif + + for (irq = PIC_IRT_FIRST_IRQ; irq <= PIC_IRT_LAST_IRQ; irq++) { + irt = nlm_irq_to_irt(irq); + if (irt == -1) + continue; + nlm_irq_mask |= (1ULL << irq); + nlm_pic_init_irt(nlm_pic_base, irt, irq, 0); + } + + nlm_irq_mask |= (1ULL << IRQ_TIMER); +} + +void __init arch_init_irq(void) +{ + /* Initialize the irq descriptors */ + init_nlm_common_irqs(); + + write_c0_eimr(nlm_irq_mask); +} + +void __cpuinit nlm_smp_irq_init(void) +{ + /* set interrupt mask for non-zero cpus */ + write_c0_eimr(nlm_irq_mask); +} + +asmlinkage void plat_irq_dispatch(void) +{ + uint64_t eirr; + int i; + + eirr = read_c0_eirr() & read_c0_eimr(); + if (eirr & (1 << IRQ_TIMER)) { + do_IRQ(IRQ_TIMER); + return; + } + + i = __ilog2_u64(eirr); + if (i == -1) + return; + + do_IRQ(i); +} diff --git a/arch/mips/netlogic/xlr/smp.c b/arch/mips/netlogic/common/smp.c index 080284ded508..3b32c834d14c 100644 --- a/arch/mips/netlogic/xlr/smp.c +++ b/arch/mips/netlogic/common/smp.c @@ -42,31 +42,20 @@ #include <asm/netlogic/interrupt.h> #include <asm/netlogic/mips-extns.h> +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/common.h> #include <asm/netlogic/xlr/iomap.h> #include <asm/netlogic/xlr/pic.h> -#include <asm/netlogic/xlr/xlr.h> -void core_send_ipi(int logical_cpu, unsigned int action) +void nlm_send_ipi_single(int logical_cpu, unsigned int action) { int cpu = cpu_logical_map(logical_cpu); - u32 tid = cpu & 0x3; - u32 pid = (cpu >> 2) & 0x07; - u32 ipi = (tid << 16) | (pid << 20); if (action & SMP_CALL_FUNCTION) - ipi |= IRQ_IPI_SMP_FUNCTION; - else if (action & SMP_RESCHEDULE_YOURSELF) - ipi |= IRQ_IPI_SMP_RESCHEDULE; - else - return; - - pic_send_ipi(ipi); -} - -void nlm_send_ipi_single(int cpu, unsigned int action) -{ - core_send_ipi(cpu, action); + nlm_pic_send_ipi(nlm_pic_base, cpu, IRQ_IPI_SMP_FUNCTION, 0); + if (action & SMP_RESCHEDULE_YOURSELF) + nlm_pic_send_ipi(nlm_pic_base, cpu, IRQ_IPI_SMP_RESCHEDULE, 0); } void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action) @@ -74,7 +63,7 @@ void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action) int cpu; for_each_cpu(cpu, mask) { - core_send_ipi(cpu, action); + nlm_send_ipi_single(cpu, action); } } @@ -82,21 +71,26 @@ void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action) void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc) { smp_call_function_interrupt(); + write_c0_eirr(1ull << irq); } /* IRQ_IPI_SMP_RESCHEDULE handler */ void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc) { scheduler_ipi(); + write_c0_eirr(1ull << irq); } /* * Called before going into mips code, early cpu init */ -void nlm_early_init_secondary(void) +void nlm_early_init_secondary(int cpu) { write_c0_ebase((uint32_t)nlm_common_ebase); - /* TLB partition here later */ +#ifdef NLM_XLP + if (cpu % 4 == 0) + xlp_mmu_init(); +#endif } /* @@ -159,8 +153,8 @@ void __init nlm_smp_setup(void) num_cpus = 1; for (i = 0; i < NR_CPUS; i++) { /* - * BSP is not set in nlm_cpu_ready array, it is only for - * ASPs (goto see smpboot.S) + * nlm_cpu_ready array is not set for the boot_cpu, + * it is only set for ASPs (see smpboot.S) */ if (nlm_cpu_ready[i]) { cpu_set(i, phys_cpu_present_map); @@ -192,29 +186,3 @@ struct plat_smp_ops nlm_smp_ops = { .smp_setup = nlm_smp_setup, .prepare_cpus = nlm_prepare_cpus, }; - -unsigned long secondary_entry_point; - -int __cpuinit nlm_wakeup_secondary_cpus(u32 wakeup_mask) -{ - unsigned int tid, pid, ipi, i, boot_cpu; - void *reset_vec; - - secondary_entry_point = (unsigned long)prom_pre_boot_secondary_cpus; - reset_vec = (void *)CKSEG1ADDR(0x1fc00000); - memcpy(reset_vec, nlm_boot_smp_nmi, 0x80); - boot_cpu = hard_smp_processor_id(); - - for (i = 0; i < NR_CPUS; i++) { - if (i == boot_cpu) - continue; - if (wakeup_mask & (1u << i)) { - tid = i & 0x3; - pid = (i >> 2) & 0x7; - ipi = (tid << 16) | (pid << 20) | (1 << 8); - pic_send_ipi(ipi); - } - } - - return 0; -} diff --git a/arch/mips/netlogic/xlr/time.c b/arch/mips/netlogic/common/time.c index 0d81b262593c..bd3e498157ff 100644 --- a/arch/mips/netlogic/xlr/time.c +++ b/arch/mips/netlogic/common/time.c @@ -36,7 +36,7 @@ #include <asm/time.h> #include <asm/netlogic/interrupt.h> -#include <asm/netlogic/psb-bootinfo.h> +#include <asm/netlogic/common.h> unsigned int __cpuinit get_c0_compare_int(void) { @@ -45,7 +45,7 @@ unsigned int __cpuinit get_c0_compare_int(void) void __init plat_time_init(void) { - mips_hpt_frequency = nlm_prom_info.cpu_frequency; + mips_hpt_frequency = nlm_get_cpu_frequency(); pr_info("MIPS counter frequency [%ld]\n", - (unsigned long)mips_hpt_frequency); + (unsigned long)mips_hpt_frequency); } diff --git a/arch/mips/netlogic/xlr/Makefile b/arch/mips/netlogic/xlr/Makefile index 29f1fd5ba806..df245c604547 100644 --- a/arch/mips/netlogic/xlr/Makefile +++ b/arch/mips/netlogic/xlr/Makefile @@ -1,3 +1,2 @@ -obj-y += setup.o platform.o irq.o setup.o time.o -obj-$(CONFIG_SMP) += smp.o smpboot.o -obj-$(CONFIG_EARLY_PRINTK) += xlr_console.o +obj-y += setup.o platform.o +obj-$(CONFIG_SMP) += smpboot.o wakeup.o diff --git a/arch/mips/netlogic/xlr/irq.c b/arch/mips/netlogic/xlr/irq.c deleted file mode 100644 index fc822c8f0817..000000000000 --- a/arch/mips/netlogic/xlr/irq.c +++ /dev/null @@ -1,305 +0,0 @@ -/* - * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights - * reserved. - * - * This software is available to you under a choice of one of two - * licenses. You may choose to be licensed under the terms of the GNU - * General Public License (GPL) Version 2, available from the file - * COPYING in the main directory of this source tree, or the NetLogic - * license below: - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN - * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/linkage.h> -#include <linux/interrupt.h> -#include <linux/spinlock.h> -#include <linux/mm.h> -#include <linux/msi.h> -#include <linux/irq.h> -#include <linux/irqdesc.h> -#include <linux/pci.h> - -#include <asm/mipsregs.h> - -#include <asm/netlogic/xlr/msidef.h> -#include <asm/netlogic/xlr/iomap.h> -#include <asm/netlogic/xlr/pic.h> -#include <asm/netlogic/xlr/xlr.h> - -#include <asm/netlogic/interrupt.h> -#include <asm/netlogic/mips-extns.h> - -static u64 nlm_irq_mask; -static DEFINE_SPINLOCK(nlm_pic_lock); - -static void xlr_pic_enable(struct irq_data *d) -{ - nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); - unsigned long flags; - nlm_reg_t reg; - int irq = d->irq; - - WARN(!PIC_IRQ_IS_IRT(irq), "Bad irq %d", irq); - - spin_lock_irqsave(&nlm_pic_lock, flags); - reg = netlogic_read_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE); - netlogic_write_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE, - reg | (1 << 6) | (1 << 30) | (1 << 31)); - spin_unlock_irqrestore(&nlm_pic_lock, flags); -} - -static void xlr_pic_mask(struct irq_data *d) -{ - nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); - unsigned long flags; - nlm_reg_t reg; - int irq = d->irq; - - WARN(!PIC_IRQ_IS_IRT(irq), "Bad irq %d", irq); - - spin_lock_irqsave(&nlm_pic_lock, flags); - reg = netlogic_read_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE); - netlogic_write_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE, - reg | (1 << 6) | (1 << 30) | (0 << 31)); - spin_unlock_irqrestore(&nlm_pic_lock, flags); -} - -#ifdef CONFIG_PCI -/* Extra ACK needed for XLR on chip PCI controller */ -static void xlr_pci_ack(struct irq_data *d) -{ - nlm_reg_t *pci_mmio = netlogic_io_mmio(NETLOGIC_IO_PCIX_OFFSET); - - netlogic_read_reg(pci_mmio, (0x140 >> 2)); -} - -/* Extra ACK needed for XLS on chip PCIe controller */ -static void xls_pcie_ack(struct irq_data *d) -{ - nlm_reg_t *pcie_mmio_le = netlogic_io_mmio(NETLOGIC_IO_PCIE_1_OFFSET); - - switch (d->irq) { - case PIC_PCIE_LINK0_IRQ: - netlogic_write_reg(pcie_mmio_le, (0x90 >> 2), 0xffffffff); - break; - case PIC_PCIE_LINK1_IRQ: - netlogic_write_reg(pcie_mmio_le, (0x94 >> 2), 0xffffffff); - break; - case PIC_PCIE_LINK2_IRQ: - netlogic_write_reg(pcie_mmio_le, (0x190 >> 2), 0xffffffff); - break; - case PIC_PCIE_LINK3_IRQ: - netlogic_write_reg(pcie_mmio_le, (0x194 >> 2), 0xffffffff); - break; - } -} - -/* For XLS B silicon, the 3,4 PCI interrupts are different */ -static void xls_pcie_ack_b(struct irq_data *d) -{ - nlm_reg_t *pcie_mmio_le = netlogic_io_mmio(NETLOGIC_IO_PCIE_1_OFFSET); - - switch (d->irq) { - case PIC_PCIE_LINK0_IRQ: - netlogic_write_reg(pcie_mmio_le, (0x90 >> 2), 0xffffffff); - break; - case PIC_PCIE_LINK1_IRQ: - netlogic_write_reg(pcie_mmio_le, (0x94 >> 2), 0xffffffff); - break; - case PIC_PCIE_XLSB0_LINK2_IRQ: - netlogic_write_reg(pcie_mmio_le, (0x190 >> 2), 0xffffffff); - break; - case PIC_PCIE_XLSB0_LINK3_IRQ: - netlogic_write_reg(pcie_mmio_le, (0x194 >> 2), 0xffffffff); - break; - } -} -#endif - -static void xlr_pic_ack(struct irq_data *d) -{ - unsigned long flags; - nlm_reg_t *mmio; - int irq = d->irq; - void *hd = irq_data_get_irq_handler_data(d); - - WARN(!PIC_IRQ_IS_IRT(irq), "Bad irq %d", irq); - - if (hd) { - void (*extra_ack)(void *) = hd; - extra_ack(d); - } - mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); - spin_lock_irqsave(&nlm_pic_lock, flags); - netlogic_write_reg(mmio, PIC_INT_ACK, (1 << (irq - PIC_IRQ_BASE))); - spin_unlock_irqrestore(&nlm_pic_lock, flags); -} - -/* - * This chip definition handles interrupts routed thru the XLR - * hardware PIC, currently IRQs 8-39 are mapped to hardware intr - * 0-31 wired the XLR PIC - */ -static struct irq_chip xlr_pic = { - .name = "XLR-PIC", - .irq_enable = xlr_pic_enable, - .irq_mask = xlr_pic_mask, - .irq_ack = xlr_pic_ack, -}; - -static void rsvd_irq_handler(struct irq_data *d) -{ - WARN(d->irq >= PIC_IRQ_BASE, "Bad irq %d", d->irq); -} - -/* - * Chip definition for CPU originated interrupts(timer, msg) and - * IPIs - */ -struct irq_chip nlm_cpu_intr = { - .name = "XLR-CPU-INTR", - .irq_enable = rsvd_irq_handler, - .irq_mask = rsvd_irq_handler, - .irq_ack = rsvd_irq_handler, -}; - -void __init init_xlr_irqs(void) -{ - nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); - uint32_t thread_mask = 1; - int level, i; - - pr_info("Interrupt thread mask [%x]\n", thread_mask); - for (i = 0; i < PIC_NUM_IRTS; i++) { - level = PIC_IRQ_IS_EDGE_TRIGGERED(i); - - /* Bind all PIC irqs to boot cpu */ - netlogic_write_reg(mmio, PIC_IRT_0_BASE + i, thread_mask); - - /* - * Use local scheduling and high polarity for all IRTs - * Invalidate all IRTs, by default - */ - netlogic_write_reg(mmio, PIC_IRT_1_BASE + i, - (level << 30) | (1 << 6) | (PIC_IRQ_BASE + i)); - } - - /* Make all IRQs as level triggered by default */ - for (i = 0; i < NR_IRQS; i++) { - if (PIC_IRQ_IS_IRT(i)) - irq_set_chip_and_handler(i, &xlr_pic, handle_level_irq); - else - irq_set_chip_and_handler(i, &nlm_cpu_intr, - handle_percpu_irq); - } -#ifdef CONFIG_SMP - irq_set_chip_and_handler(IRQ_IPI_SMP_FUNCTION, &nlm_cpu_intr, - nlm_smp_function_ipi_handler); - irq_set_chip_and_handler(IRQ_IPI_SMP_RESCHEDULE, &nlm_cpu_intr, - nlm_smp_resched_ipi_handler); - nlm_irq_mask |= - ((1ULL << IRQ_IPI_SMP_FUNCTION) | (1ULL << IRQ_IPI_SMP_RESCHEDULE)); -#endif - -#ifdef CONFIG_PCI - /* - * For PCI interrupts, we need to ack the PIC controller too, overload - * irq handler data to do this - */ - if (nlm_chip_is_xls()) { - if (nlm_chip_is_xls_b()) { - irq_set_handler_data(PIC_PCIE_LINK0_IRQ, - xls_pcie_ack_b); - irq_set_handler_data(PIC_PCIE_LINK1_IRQ, - xls_pcie_ack_b); - irq_set_handler_data(PIC_PCIE_XLSB0_LINK2_IRQ, - xls_pcie_ack_b); - irq_set_handler_data(PIC_PCIE_XLSB0_LINK3_IRQ, - xls_pcie_ack_b); - } else { - irq_set_handler_data(PIC_PCIE_LINK0_IRQ, xls_pcie_ack); - irq_set_handler_data(PIC_PCIE_LINK1_IRQ, xls_pcie_ack); - irq_set_handler_data(PIC_PCIE_LINK2_IRQ, xls_pcie_ack); - irq_set_handler_data(PIC_PCIE_LINK3_IRQ, xls_pcie_ack); - } - } else { - /* XLR PCI controller ACK */ - irq_set_handler_data(PIC_PCIE_XLSB0_LINK3_IRQ, xlr_pci_ack); - } -#endif - /* unmask all PIC related interrupts. If no handler is installed by the - * drivers, it'll just ack the interrupt and return - */ - for (i = PIC_IRT_FIRST_IRQ; i <= PIC_IRT_LAST_IRQ; i++) - nlm_irq_mask |= (1ULL << i); - - nlm_irq_mask |= (1ULL << IRQ_TIMER); -} - -void __init arch_init_irq(void) -{ - /* Initialize the irq descriptors */ - init_xlr_irqs(); - write_c0_eimr(nlm_irq_mask); -} - -void __cpuinit nlm_smp_irq_init(void) -{ - /* set interrupt mask for non-zero cpus */ - write_c0_eimr(nlm_irq_mask); -} - -asmlinkage void plat_irq_dispatch(void) -{ - uint64_t eirr; - int i; - - eirr = read_c0_eirr() & read_c0_eimr(); - if (!eirr) - return; - - /* no need of EIRR here, writing compare clears interrupt */ - if (eirr & (1 << IRQ_TIMER)) { - do_IRQ(IRQ_TIMER); - return; - } - - /* use dcltz: optimize below code */ - for (i = 63; i != -1; i--) { - if (eirr & (1ULL << i)) - break; - } - if (i == -1) { - pr_err("no interrupt !!\n"); - return; - } - - /* Ack eirr */ - write_c0_eirr(1ULL << i); - - do_IRQ(i); -} diff --git a/arch/mips/netlogic/xlr/platform.c b/arch/mips/netlogic/xlr/platform.c index 609ec2534642..eab64b45dffd 100644 --- a/arch/mips/netlogic/xlr/platform.c +++ b/arch/mips/netlogic/xlr/platform.c @@ -15,18 +15,19 @@ #include <linux/serial_8250.h> #include <linux/serial_reg.h> +#include <asm/netlogic/haldefs.h> #include <asm/netlogic/xlr/iomap.h> #include <asm/netlogic/xlr/pic.h> #include <asm/netlogic/xlr/xlr.h> unsigned int nlm_xlr_uart_in(struct uart_port *p, int offset) { - nlm_reg_t *mmio; + uint64_t uartbase; unsigned int value; - /* XLR uart does not need any mapping of regs */ - mmio = (nlm_reg_t *)(p->membase + (offset << p->regshift)); - value = netlogic_read_reg(mmio, 0); + /* sign extend to 64 bits, if needed */ + uartbase = (uint64_t)(long)p->membase; + value = nlm_read_reg(uartbase, offset); /* See XLR/XLS errata */ if (offset == UART_MSR) @@ -39,10 +40,10 @@ unsigned int nlm_xlr_uart_in(struct uart_port *p, int offset) void nlm_xlr_uart_out(struct uart_port *p, int offset, int value) { - nlm_reg_t *mmio; + uint64_t uartbase; - /* XLR uart does not need any mapping of regs */ - mmio = (nlm_reg_t *)(p->membase + (offset << p->regshift)); + /* sign extend to 64 bits, if needed */ + uartbase = (uint64_t)(long)p->membase; /* See XLR/XLS errata */ if (offset == UART_MSR) @@ -50,7 +51,7 @@ void nlm_xlr_uart_out(struct uart_port *p, int offset, int value) else if (offset == UART_MCR) value ^= 0x3; - netlogic_write_reg(mmio, 0, value); + nlm_write_reg(uartbase, offset, value); } #define PORT(_irq) \ @@ -82,15 +83,15 @@ static struct platform_device uart_device = { static int __init nlm_uart_init(void) { - nlm_reg_t *mmio; + unsigned long uartbase; - mmio = netlogic_io_mmio(NETLOGIC_IO_UART_0_OFFSET); - xlr_uart_data[0].membase = (void __iomem *)mmio; - xlr_uart_data[0].mapbase = CPHYSADDR((unsigned long)mmio); + uartbase = (unsigned long)nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET); + xlr_uart_data[0].membase = (void __iomem *)uartbase; + xlr_uart_data[0].mapbase = CPHYSADDR(uartbase); - mmio = netlogic_io_mmio(NETLOGIC_IO_UART_1_OFFSET); - xlr_uart_data[1].membase = (void __iomem *)mmio; - xlr_uart_data[1].mapbase = CPHYSADDR((unsigned long)mmio); + uartbase = (unsigned long)nlm_mmio_base(NETLOGIC_IO_UART_1_OFFSET); + xlr_uart_data[1].membase = (void __iomem *)uartbase; + xlr_uart_data[1].mapbase = CPHYSADDR(uartbase); return platform_device_register(&uart_device); } diff --git a/arch/mips/netlogic/xlr/setup.c b/arch/mips/netlogic/xlr/setup.c index cee25ddd0887..20c280ae7e99 100644 --- a/arch/mips/netlogic/xlr/setup.c +++ b/arch/mips/netlogic/xlr/setup.c @@ -39,26 +39,28 @@ #include <asm/reboot.h> #include <asm/time.h> #include <asm/bootinfo.h> -#include <asm/smp-ops.h> #include <asm/netlogic/interrupt.h> #include <asm/netlogic/psb-bootinfo.h> +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/common.h> #include <asm/netlogic/xlr/xlr.h> #include <asm/netlogic/xlr/iomap.h> #include <asm/netlogic/xlr/pic.h> #include <asm/netlogic/xlr/gpio.h> -unsigned long netlogic_io_base = (unsigned long)(DEFAULT_NETLOGIC_IO_BASE); +uint64_t nlm_io_base = DEFAULT_NETLOGIC_IO_BASE; +uint64_t nlm_pic_base; unsigned long nlm_common_ebase = 0x0; struct psb_info nlm_prom_info; static void __init nlm_early_serial_setup(void) { struct uart_port s; - nlm_reg_t *uart_base; + unsigned long uart_base; - uart_base = netlogic_io_mmio(NETLOGIC_IO_UART_0_OFFSET); + uart_base = (unsigned long)nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET); memset(&s, 0, sizeof(s)); s.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST; s.iotype = UPIO_MEM32; @@ -67,18 +69,18 @@ static void __init nlm_early_serial_setup(void) s.uartclk = PIC_CLKS_PER_SEC; s.serial_in = nlm_xlr_uart_in; s.serial_out = nlm_xlr_uart_out; - s.mapbase = (unsigned long)uart_base; + s.mapbase = uart_base; s.membase = (unsigned char __iomem *)uart_base; early_serial_setup(&s); } static void nlm_linux_exit(void) { - nlm_reg_t *mmio; + uint64_t gpiobase; - mmio = netlogic_io_mmio(NETLOGIC_IO_GPIO_OFFSET); + gpiobase = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET); /* trigger a chip reset by writing 1 to GPIO_SWRESET_REG */ - netlogic_write_reg(mmio, NETLOGIC_GPIO_SWRESET_REG, 1); + nlm_write_reg(gpiobase, NETLOGIC_GPIO_SWRESET_REG, 1); for ( ; ; ) cpu_wait(); } @@ -96,6 +98,11 @@ const char *get_system_type(void) return "Netlogic XLR/XLS Series"; } +unsigned int nlm_get_cpu_frequency(void) +{ + return (unsigned int)nlm_prom_info.cpu_frequency; +} + void __init prom_free_prom_memory(void) { /* Nothing yet */ @@ -175,6 +182,7 @@ void __init prom_init(void) prom_infop = (struct psb_info *)(long)(int)fw_arg3; nlm_prom_info = *prom_infop; + nlm_pic_base = nlm_mmio_base(NETLOGIC_IO_PIC_OFFSET); nlm_early_serial_setup(); build_arcs_cmdline(argv); diff --git a/arch/mips/netlogic/xlr/smpboot.S b/arch/mips/netlogic/xlr/smpboot.S index 8cb7889ce0cc..7f1f6e6e295f 100644 --- a/arch/mips/netlogic/xlr/smpboot.S +++ b/arch/mips/netlogic/xlr/smpboot.S @@ -75,12 +75,11 @@ NESTED(prom_pre_boot_secondary_cpus, 16, sp) jr t0 nop END(prom_pre_boot_secondary_cpus) - __FINIT /* * NMI code, used for CPU wakeup, copied to reset entry */ -NESTED(nlm_boot_smp_nmi, 0, sp) +EXPORT(nlm_reset_entry) .set push .set noat .set mips64 @@ -97,4 +96,5 @@ NESTED(nlm_boot_smp_nmi, 0, sp) jr k0 nop .set pop -END(nlm_boot_smp_nmi) +EXPORT(nlm_reset_entry_end) + __FINIT diff --git a/arch/mips/netlogic/xlr/wakeup.c b/arch/mips/netlogic/xlr/wakeup.c new file mode 100644 index 000000000000..69143bb7f688 --- /dev/null +++ b/arch/mips/netlogic/xlr/wakeup.c @@ -0,0 +1,71 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/init.h> +#include <linux/threads.h> + +#include <asm/asm.h> +#include <asm/asm-offsets.h> +#include <asm/mipsregs.h> +#include <asm/addrspace.h> +#include <asm/string.h> + +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/common.h> +#include <asm/netlogic/mips-extns.h> + +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> + +unsigned long secondary_entry_point; + +int __cpuinit nlm_wakeup_secondary_cpus(u32 wakeup_mask) +{ + unsigned int i, boot_cpu; + void *reset_vec; + + secondary_entry_point = (unsigned long)prom_pre_boot_secondary_cpus; + reset_vec = (void *)CKSEG1ADDR(0x1fc00000); + memcpy(reset_vec, (void *)nlm_reset_entry, + (nlm_reset_entry_end - nlm_reset_entry)); + boot_cpu = hard_smp_processor_id(); + + for (i = 0; i < NR_CPUS; i++) { + if (i == boot_cpu || (wakeup_mask & (1u << i)) == 0) + continue; + nlm_pic_send_ipi(nlm_pic_base, i, 1, 1); /* send NMI */ + } + + return 0; +} diff --git a/arch/mips/pci/pci-xlr.c b/arch/mips/pci/pci-xlr.c index 87404d0034d2..3d701a962ef4 100644 --- a/arch/mips/pci/pci-xlr.c +++ b/arch/mips/pci/pci-xlr.c @@ -45,6 +45,8 @@ #include <asm/io.h> #include <asm/netlogic/interrupt.h> +#include <asm/netlogic/haldefs.h> + #include <asm/netlogic/xlr/msidef.h> #include <asm/netlogic/xlr/iomap.h> #include <asm/netlogic/xlr/pic.h> @@ -226,6 +228,56 @@ int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc) } #endif +/* Extra ACK needed for XLR on chip PCI controller */ +static void xlr_pci_ack(struct irq_data *d) +{ + uint64_t pcibase = nlm_mmio_base(NETLOGIC_IO_PCIX_OFFSET); + + nlm_read_reg(pcibase, (0x140 >> 2)); +} + +/* Extra ACK needed for XLS on chip PCIe controller */ +static void xls_pcie_ack(struct irq_data *d) +{ + uint64_t pciebase_le = nlm_mmio_base(NETLOGIC_IO_PCIE_1_OFFSET); + + switch (d->irq) { + case PIC_PCIE_LINK0_IRQ: + nlm_write_reg(pciebase_le, (0x90 >> 2), 0xffffffff); + break; + case PIC_PCIE_LINK1_IRQ: + nlm_write_reg(pciebase_le, (0x94 >> 2), 0xffffffff); + break; + case PIC_PCIE_LINK2_IRQ: + nlm_write_reg(pciebase_le, (0x190 >> 2), 0xffffffff); + break; + case PIC_PCIE_LINK3_IRQ: + nlm_write_reg(pciebase_le, (0x194 >> 2), 0xffffffff); + break; + } +} + +/* For XLS B silicon, the 3,4 PCI interrupts are different */ +static void xls_pcie_ack_b(struct irq_data *d) +{ + uint64_t pciebase_le = nlm_mmio_base(NETLOGIC_IO_PCIE_1_OFFSET); + + switch (d->irq) { + case PIC_PCIE_LINK0_IRQ: + nlm_write_reg(pciebase_le, (0x90 >> 2), 0xffffffff); + break; + case PIC_PCIE_LINK1_IRQ: + nlm_write_reg(pciebase_le, (0x94 >> 2), 0xffffffff); + break; + case PIC_PCIE_XLSB0_LINK2_IRQ: + nlm_write_reg(pciebase_le, (0x190 >> 2), 0xffffffff); + break; + case PIC_PCIE_XLSB0_LINK3_IRQ: + nlm_write_reg(pciebase_le, (0x194 >> 2), 0xffffffff); + break; + } +} + int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { return get_irq_vector(dev); @@ -253,6 +305,31 @@ static int __init pcibios_init(void) pr_info("Registering XLR/XLS PCIX/PCIE Controller.\n"); register_pci_controller(&nlm_pci_controller); + /* + * For PCI interrupts, we need to ack the PCI controller too, overload + * irq handler data to do this + */ + if (nlm_chip_is_xls()) { + if (nlm_chip_is_xls_b()) { + irq_set_handler_data(PIC_PCIE_LINK0_IRQ, + xls_pcie_ack_b); + irq_set_handler_data(PIC_PCIE_LINK1_IRQ, + xls_pcie_ack_b); + irq_set_handler_data(PIC_PCIE_XLSB0_LINK2_IRQ, + xls_pcie_ack_b); + irq_set_handler_data(PIC_PCIE_XLSB0_LINK3_IRQ, + xls_pcie_ack_b); + } else { + irq_set_handler_data(PIC_PCIE_LINK0_IRQ, xls_pcie_ack); + irq_set_handler_data(PIC_PCIE_LINK1_IRQ, xls_pcie_ack); + irq_set_handler_data(PIC_PCIE_LINK2_IRQ, xls_pcie_ack); + irq_set_handler_data(PIC_PCIE_LINK3_IRQ, xls_pcie_ack); + } + } else { + /* XLR PCI controller ACK */ + irq_set_handler_data(PIC_PCIE_XLSB0_LINK3_IRQ, xlr_pci_ack); + } + return 0; } |