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-rw-r--r--target/linux/ramips/patches-3.14/0012-MIPS-ralink-add-MT7621-support.patch751
1 files changed, 751 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-3.14/0012-MIPS-ralink-add-MT7621-support.patch b/target/linux/ramips/patches-3.14/0012-MIPS-ralink-add-MT7621-support.patch
new file mode 100644
index 0000000000..ef077e1ed0
--- /dev/null
+++ b/target/linux/ramips/patches-3.14/0012-MIPS-ralink-add-MT7621-support.patch
@@ -0,0 +1,751 @@
+From c8c69923236f2f3f184ddcc7eb41c113b5cc3223 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sun, 27 Jul 2014 10:57:40 +0100
+Subject: [PATCH 12/57] MIPS: ralink: add MT7621 support
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/include/asm/gic.h | 4 +
+ arch/mips/include/asm/mach-ralink/irq.h | 9 +
+ arch/mips/include/asm/mach-ralink/mt7621.h | 39 ++++
+ arch/mips/kernel/vmlinux.lds.S | 1 +
+ arch/mips/ralink/Kconfig | 18 ++
+ arch/mips/ralink/Makefile | 7 +-
+ arch/mips/ralink/Platform | 5 +
+ arch/mips/ralink/irq-gic.c | 271 ++++++++++++++++++++++++++++
+ arch/mips/ralink/malta-amon.c | 81 +++++++++
+ arch/mips/ralink/mt7621.c | 183 +++++++++++++++++++
+ 10 files changed, 617 insertions(+), 1 deletion(-)
+ create mode 100644 arch/mips/include/asm/mach-ralink/irq.h
+ create mode 100644 arch/mips/include/asm/mach-ralink/mt7621.h
+ create mode 100644 arch/mips/ralink/irq-gic.c
+ create mode 100644 arch/mips/ralink/malta-amon.c
+ create mode 100644 arch/mips/ralink/mt7621.c
+
+diff --git a/arch/mips/include/asm/gic.h b/arch/mips/include/asm/gic.h
+index b2e3e93..29fba50 100644
+--- a/arch/mips/include/asm/gic.h
++++ b/arch/mips/include/asm/gic.h
+@@ -19,7 +19,11 @@
+ #define GIC_TRIG_EDGE 1
+ #define GIC_TRIG_LEVEL 0
+
++#define GIC_NUM_INTRS 64
++
++#ifndef GIC_NUM_INTRS
+ #define GIC_NUM_INTRS (24 + NR_CPUS * 2)
++#endif
+
+ #define MSK(n) ((1 << (n)) - 1)
+ #define REG32(addr) (*(volatile unsigned int *) (addr))
+diff --git a/arch/mips/include/asm/mach-ralink/irq.h b/arch/mips/include/asm/mach-ralink/irq.h
+new file mode 100644
+index 0000000..4321865
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ralink/irq.h
+@@ -0,0 +1,9 @@
++#ifndef __ASM_MACH_RALINK_IRQ_H
++#define __ASM_MACH_RALINK_IRQ_H
++
++#define GIC_NUM_INTRS 64
++#define NR_IRQS 256
++
++#include_next <irq.h>
++
++#endif
+diff --git a/arch/mips/include/asm/mach-ralink/mt7621.h b/arch/mips/include/asm/mach-ralink/mt7621.h
+new file mode 100644
+index 0000000..21c8dc2
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ralink/mt7621.h
+@@ -0,0 +1,39 @@
++/*
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published
++ * by the Free Software Foundation.
++ *
++ * Parts of this file are based on Ralink's 2.6.21 BSP
++ *
++ * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
++ */
++
++#ifndef _MT7621_REGS_H_
++#define _MT7621_REGS_H_
++
++#define MT7621_SYSC_BASE 0x1E000000
++
++#define SYSC_REG_CHIP_NAME0 0x00
++#define SYSC_REG_CHIP_NAME1 0x04
++#define SYSC_REG_CHIP_REV 0x0c
++#define SYSC_REG_SYSTEM_CONFIG0 0x10
++#define SYSC_REG_SYSTEM_CONFIG1 0x14
++
++#define CHIP_REV_PKG_MASK 0x1
++#define CHIP_REV_PKG_SHIFT 16
++#define CHIP_REV_VER_MASK 0xf
++#define CHIP_REV_VER_SHIFT 8
++#define CHIP_REV_ECO_MASK 0xf
++
++#define MT7621_DRAM_BASE 0x0
++#define MT7621_DDR2_SIZE_MIN 32
++#define MT7621_DDR2_SIZE_MAX 256
++
++#define MT7621_CHIP_NAME0 0x3637544D
++#define MT7621_CHIP_NAME1 0x20203132
++
++#define MIPS_GIC_IRQ_BASE (MIPS_CPU_IRQ_BASE + 8)
++
++#endif
+diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
+index 3b46f7c..fa925b7 100644
+--- a/arch/mips/kernel/vmlinux.lds.S
++++ b/arch/mips/kernel/vmlinux.lds.S
+@@ -51,6 +51,7 @@ SECTIONS
+ /* read-only */
+ _text = .; /* Text and read-only data */
+ .text : {
++ /*. = . + 0x8000; */
+ TEXT_TEXT
+ SCHED_TEXT
+ LOCK_TEXT
+diff --git a/arch/mips/ralink/Kconfig b/arch/mips/ralink/Kconfig
+index 1bfd1c1..6a04360 100644
+--- a/arch/mips/ralink/Kconfig
++++ b/arch/mips/ralink/Kconfig
+@@ -7,6 +7,11 @@ config CLKEVT_RT3352
+ select CLKSRC_OF
+ select CLKSRC_MMIO
+
++config IRQ_INTC
++ bool
++ default y
++ depends on !SOC_MT7621
++
+ choice
+ prompt "Ralink SoC selection"
+ default SOC_RT305X
+@@ -34,6 +39,15 @@ choice
+ select USB_ARCH_HAS_OHCI
+ select USB_ARCH_HAS_EHCI
+
++ config SOC_MT7621
++ bool "MT7621"
++ select MIPS_CPU_SCACHE
++ select SYS_SUPPORTS_MULTITHREADING
++ select SYS_SUPPORTS_SMP
++ select SYS_SUPPORTS_MIPS_CMP
++ select IRQ_GIC
++ select HW_HAS_PCI
++
+ endchoice
+
+ choice
+@@ -61,6 +75,10 @@ choice
+ bool "MT7620A eval kit"
+ depends on SOC_MT7620
+
++ config DTB_MT7621_EVAL
++ bool "MT7621 eval kit"
++ depends on SOC_MT7621
++
+ endchoice
+
+ endif
+diff --git a/arch/mips/ralink/Makefile b/arch/mips/ralink/Makefile
+index fc57c16..ad18cdf 100644
+--- a/arch/mips/ralink/Makefile
++++ b/arch/mips/ralink/Makefile
+@@ -6,16 +6,21 @@
+ # Copyright (C) 2009-2011 Gabor Juhos <juhosg@openwrt.org>
+ # Copyright (C) 2013 John Crispin <blogic@openwrt.org>
+
+-obj-y := prom.o of.o reset.o clk.o irq.o timer.o
++obj-y := prom.o of.o reset.o clk.o timer.o
+
+ obj-$(CONFIG_CLKEVT_RT3352) += cevt-rt3352.o
+
+ obj-$(CONFIG_RALINK_ILL_ACC) += ill_acc.o
+
++obj-$(CONFIG_IRQ_INTC) += irq.o
++obj-$(CONFIG_IRQ_GIC) += irq-gic.o
++obj-$(CONFIG_MIPS_MT_SMP) += malta-amon.o
++
+ obj-$(CONFIG_SOC_RT288X) += rt288x.o
+ obj-$(CONFIG_SOC_RT305X) += rt305x.o
+ obj-$(CONFIG_SOC_RT3883) += rt3883.o
+ obj-$(CONFIG_SOC_MT7620) += mt7620.o
++obj-$(CONFIG_SOC_MT7621) += mt7621.o
+
+ obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+
+diff --git a/arch/mips/ralink/Platform b/arch/mips/ralink/Platform
+index 6d9c8c4..6095fcc 100644
+--- a/arch/mips/ralink/Platform
++++ b/arch/mips/ralink/Platform
+@@ -27,3 +27,8 @@ cflags-$(CONFIG_SOC_RT3883) += -I$(srctree)/arch/mips/include/asm/mach-ralink/rt
+ #
+ load-$(CONFIG_SOC_MT7620) += 0xffffffff80000000
+ cflags-$(CONFIG_SOC_MT7620) += -I$(srctree)/arch/mips/include/asm/mach-ralink/mt7620
++
++# Ralink MT7621
++#
++load-$(CONFIG_SOC_MT7621) += 0xffffffff80001000
++cflags-$(CONFIG_SOC_MT7621) += -I$(srctree)/arch/mips/include/asm/mach-ralink/mt7621
+diff --git a/arch/mips/ralink/irq-gic.c b/arch/mips/ralink/irq-gic.c
+new file mode 100644
+index 0000000..0122d42
+--- /dev/null
++++ b/arch/mips/ralink/irq-gic.c
+@@ -0,0 +1,271 @@
++#include <linux/init.h>
++#include <linux/sched.h>
++#include <linux/slab.h>
++#include <linux/interrupt.h>
++#include <linux/kernel_stat.h>
++#include <linux/hardirq.h>
++#include <linux/preempt.h>
++#include <linux/irqdomain.h>
++#include <linux/of_platform.h>
++#include <linux/of_address.h>
++#include <linux/of_irq.h>
++
++#include <asm/irq_cpu.h>
++#include <asm/mipsregs.h>
++
++#include <asm/irq.h>
++#include <asm/setup.h>
++
++#include <asm/gic.h>
++#include <asm/gcmpregs.h>
++
++#include <asm/mach-ralink/mt7621.h>
++
++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;
++
++#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 = GIC_FLAG_IPI;
++ }
++
++#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_err("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)
++{
++ 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");
++
++ if ((GCMPGCB(GCMPB) & GCMP_GCB_GCMPB_GCMPBASE_MSK) != gcmp.start)
++ panic("Failed to find gcmp core\n");
++
++ /* tell the gcmp where to find the gic */
++ GCMPGCB(GICBA) = gic.start | GCMP_GCB_GICBA_EN_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;
++}
++
++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 },
++ {},
++};
++
++void __init
++arch_init_irq(void)
++{
++ of_irq_init(of_irq_ids);
++}
+diff --git a/arch/mips/ralink/malta-amon.c b/arch/mips/ralink/malta-amon.c
+new file mode 100644
+index 0000000..1e47844
+--- /dev/null
++++ b/arch/mips/ralink/malta-amon.c
+@@ -0,0 +1,81 @@
++/*
++ * Copyright (C) 2007 MIPS Technologies, Inc.
++ * All rights reserved.
++
++ * This program is free software; you can distribute it and/or modify it
++ * under the terms of the GNU General Public License (Version 2) as
++ * published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
++ * for more details.
++ *
++ * You should have received a copy of the GNU General Public License along
++ * with this program; if not, write to the Free Software Foundation, Inc.,
++ * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
++ *
++ * Arbitrary Monitor interface
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/smp.h>
++
++#include <asm/addrspace.h>
++#include <asm/mips-boards/launch.h>
++#include <asm/mipsmtregs.h>
++
++int amon_cpu_avail(int cpu)
++{
++ struct cpulaunch *launch = (struct cpulaunch *)CKSEG0ADDR(CPULAUNCH);
++
++ if (cpu < 0 || cpu >= NCPULAUNCH) {
++ pr_debug("avail: cpu%d is out of range\n", cpu);
++ return 0;
++ }
++
++ launch += cpu;
++ if (!(launch->flags & LAUNCH_FREADY)) {
++ pr_debug("avail: cpu%d is not ready\n", cpu);
++ return 0;
++ }
++ if (launch->flags & (LAUNCH_FGO|LAUNCH_FGONE)) {
++ pr_debug("avail: too late.. cpu%d is already gone\n", cpu);
++ return 0;
++ }
++
++ return 1;
++}
++
++void amon_cpu_start(int cpu,
++ unsigned long pc, unsigned long sp,
++ unsigned long gp, unsigned long a0)
++{
++ volatile struct cpulaunch *launch =
++ (struct cpulaunch *)CKSEG0ADDR(CPULAUNCH);
++
++ if (!amon_cpu_avail(cpu))
++ return;
++ if (cpu == smp_processor_id()) {
++ pr_debug("launch: I am cpu%d!\n", cpu);
++ return;
++ }
++ launch += cpu;
++
++ pr_debug("launch: starting cpu%d\n", cpu);
++
++ launch->pc = pc;
++ launch->gp = gp;
++ launch->sp = sp;
++ launch->a0 = a0;
++
++ smp_wmb(); /* Target must see parameters before go */
++ launch->flags |= LAUNCH_FGO;
++ smp_wmb(); /* Target must see go before we poll */
++
++ while ((launch->flags & LAUNCH_FGONE) == 0)
++ ;
++ smp_rmb(); /* Target will be updating flags soon */
++ pr_debug("launch: cpu%d gone!\n", cpu);
++}
+diff --git a/arch/mips/ralink/mt7621.c b/arch/mips/ralink/mt7621.c
+new file mode 100644
+index 0000000..2aac87c
+--- /dev/null
++++ b/arch/mips/ralink/mt7621.c
+@@ -0,0 +1,183 @@
++/*
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published
++ * by the Free Software Foundation.
++ *
++ * Parts of this file are based on Ralink's 2.6.21 BSP
++ *
++ * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <asm/gcmpregs.h>
++
++#include <asm/mipsregs.h>
++#include <asm/smp-ops.h>
++#include <asm/mach-ralink/ralink_regs.h>
++#include <asm/mach-ralink/mt7621.h>
++
++#include <pinmux.h>
++
++#include "common.h"
++
++#define SYSC_REG_SYSCFG 0x10
++#define SYSC_REG_CPLL_CLKCFG0 0x2c
++#define SYSC_REG_CUR_CLK_STS 0x44
++#define CPU_CLK_SEL (BIT(30) | BIT(31))
++
++#define MT7621_GPIO_MODE_UART1 1
++#define MT7621_GPIO_MODE_I2C 2
++#define MT7621_GPIO_MODE_UART2 3
++#define MT7621_GPIO_MODE_UART3 5
++#define MT7621_GPIO_MODE_JTAG 7
++#define MT7621_GPIO_MODE_WDT_MASK 0x3
++#define MT7621_GPIO_MODE_WDT_SHIFT 8
++#define MT7621_GPIO_MODE_WDT_GPIO 1
++#define MT7621_GPIO_MODE_PCIE_RST 0
++#define MT7621_GPIO_MODE_PCIE_REF 2
++#define MT7621_GPIO_MODE_PCIE_MASK 0x3
++#define MT7621_GPIO_MODE_PCIE_SHIFT 10
++#define MT7621_GPIO_MODE_PCIE_GPIO 1
++#define MT7621_GPIO_MODE_MDIO 12
++#define MT7621_GPIO_MODE_RGMII1 14
++#define MT7621_GPIO_MODE_RGMII2 15
++#define MT7621_GPIO_MODE_SPI_MASK 0x3
++#define MT7621_GPIO_MODE_SPI_SHIFT 16
++#define MT7621_GPIO_MODE_SPI_GPIO 1
++#define MT7621_GPIO_MODE_SDHCI_MASK 0x3
++#define MT7621_GPIO_MODE_SDHCI_SHIFT 18
++#define MT7621_GPIO_MODE_SDHCI_GPIO 1
++
++static struct rt2880_pmx_func uart1_grp[] = { FUNC("uart1", 0, 1, 2) };
++static struct rt2880_pmx_func i2c_grp[] = { FUNC("i2c", 0, 3, 2) };
++static struct rt2880_pmx_func uart3_grp[] = { FUNC("uart3", 0, 5, 4) };
++static struct rt2880_pmx_func uart2_grp[] = { FUNC("uart2", 0, 9, 4) };
++static struct rt2880_pmx_func jtag_grp[] = { FUNC("jtag", 0, 13, 5) };
++static struct rt2880_pmx_func wdt_grp[] = {
++ FUNC("wdt rst", 0, 18, 1),
++ FUNC("wdt refclk", 2, 18, 1),
++};
++static struct rt2880_pmx_func pcie_rst_grp[] = {
++ FUNC("pcie rst", MT7621_GPIO_MODE_PCIE_RST, 19, 1),
++ FUNC("pcie refclk", MT7621_GPIO_MODE_PCIE_REF, 19, 1)
++};
++static struct rt2880_pmx_func mdio_grp[] = { FUNC("mdio", 0, 20, 2) };
++static struct rt2880_pmx_func rgmii2_grp[] = { FUNC("rgmii2", 0, 22, 12) };
++static struct rt2880_pmx_func spi_grp[] = {
++ FUNC("spi", 0, 34, 7),
++ FUNC("nand", 2, 34, 8),
++};
++static struct rt2880_pmx_func sdhci_grp[] = {
++ FUNC("sdhci", 0, 41, 8),
++ FUNC("nand", 2, 41, 8),
++};
++static struct rt2880_pmx_func rgmii1_grp[] = { FUNC("rgmii1", 0, 49, 12) };
++
++static struct rt2880_pmx_group mt7621_pinmux_data[] = {
++ GRP("uart1", uart1_grp, 1, MT7621_GPIO_MODE_UART1),
++ GRP("i2c", i2c_grp, 1, MT7621_GPIO_MODE_I2C),
++ GRP("uart3", uart2_grp, 1, MT7621_GPIO_MODE_UART2),
++ GRP("uart2", uart3_grp, 1, MT7621_GPIO_MODE_UART3),
++ GRP("jtag", jtag_grp, 1, MT7621_GPIO_MODE_JTAG),
++ GRP_G("wdt", wdt_grp, MT7621_GPIO_MODE_WDT_MASK,
++ MT7621_GPIO_MODE_WDT_GPIO, MT7621_GPIO_MODE_WDT_SHIFT),
++ GRP_G("pcie", pcie_rst_grp, MT7621_GPIO_MODE_PCIE_MASK,
++ MT7621_GPIO_MODE_PCIE_GPIO, MT7621_GPIO_MODE_PCIE_SHIFT),
++ GRP("mdio", mdio_grp, 1, MT7621_GPIO_MODE_MDIO),
++ GRP("rgmii2", rgmii2_grp, 1, MT7621_GPIO_MODE_RGMII2),
++ GRP_G("spi", spi_grp, MT7621_GPIO_MODE_SPI_MASK,
++ MT7621_GPIO_MODE_SPI_GPIO, MT7621_GPIO_MODE_SPI_SHIFT),
++ GRP_G("sdhci", sdhci_grp, MT7621_GPIO_MODE_SDHCI_MASK,
++ MT7621_GPIO_MODE_SDHCI_GPIO, MT7621_GPIO_MODE_SDHCI_SHIFT),
++ GRP("rgmii1", rgmii1_grp, 1, MT7621_GPIO_MODE_RGMII1),
++ { 0 }
++};
++
++void __init ralink_clk_init(void)
++{
++ int cpu_fdiv = 0;
++ int cpu_ffrac = 0;
++ int fbdiv = 0;
++ u32 clk_sts, syscfg;
++ u8 clk_sel = 0, xtal_mode;
++ u32 cpu_clk;
++
++ if ((rt_sysc_r32(SYSC_REG_CPLL_CLKCFG0) & CPU_CLK_SEL) != 0)
++ clk_sel = 1;
++
++ switch (clk_sel) {
++ case 0:
++ clk_sts = rt_sysc_r32(SYSC_REG_CUR_CLK_STS);
++ cpu_fdiv = ((clk_sts >> 8) & 0x1F);
++ cpu_ffrac = (clk_sts & 0x1F);
++ cpu_clk = (500 * cpu_ffrac / cpu_fdiv) * 1000 * 1000;
++ break;
++
++ case 1:
++ fbdiv = ((rt_sysc_r32(0x648) >> 4) & 0x7F) + 1;
++ syscfg = rt_sysc_r32(SYSC_REG_SYSCFG);
++ xtal_mode = (syscfg >> 6) & 0x7;
++ if(xtal_mode >= 6) { //25Mhz Xtal
++ cpu_clk = 25 * fbdiv * 1000 * 1000;
++ } else if(xtal_mode >=3) { //40Mhz Xtal
++ cpu_clk = 40 * fbdiv * 1000 * 1000;
++ } else { // 20Mhz Xtal
++ cpu_clk = 20 * fbdiv * 1000 * 1000;
++ }
++ break;
++ }
++ cpu_clk = 880000000;
++ ralink_clk_add("cpu", cpu_clk);
++ ralink_clk_add("1e000b00.spi", 50000000);
++ ralink_clk_add("1e000c00.uartlite", 50000000);
++ ralink_clk_add("1e000d00.uart", 50000000);
++}
++
++void __init ralink_of_remap(void)
++{
++ rt_sysc_membase = plat_of_remap_node("mtk,mt7621-sysc");
++ rt_memc_membase = plat_of_remap_node("mtk,mt7621-memc");
++
++ if (!rt_sysc_membase || !rt_memc_membase)
++ panic("Failed to remap core resources");
++}
++
++void prom_soc_init(struct ralink_soc_info *soc_info)
++{
++ void __iomem *sysc = (void __iomem *) KSEG1ADDR(MT7621_SYSC_BASE);
++ unsigned char *name = NULL;
++ u32 n0;
++ u32 n1;
++ u32 rev;
++
++ n0 = __raw_readl(sysc + SYSC_REG_CHIP_NAME0);
++ n1 = __raw_readl(sysc + SYSC_REG_CHIP_NAME1);
++
++ if (n0 == MT7621_CHIP_NAME0 && n1 == MT7621_CHIP_NAME1) {
++ name = "MT7621";
++ soc_info->compatible = "mtk,mt7621-soc";
++ } else {
++ panic("mt7621: unknown SoC, n0:%08x n1:%08x\n", n0, n1);
++ }
++
++ rev = __raw_readl(sysc + SYSC_REG_CHIP_REV);
++
++ snprintf(soc_info->sys_type, RAMIPS_SYS_TYPE_LEN,
++ "Mediatek %s ver:%u eco:%u",
++ name,
++ (rev >> CHIP_REV_VER_SHIFT) & CHIP_REV_VER_MASK,
++ (rev & CHIP_REV_ECO_MASK));
++
++ soc_info->mem_size_min = MT7621_DDR2_SIZE_MIN;
++ soc_info->mem_size_max = MT7621_DDR2_SIZE_MAX;
++ soc_info->mem_base = MT7621_DRAM_BASE;
++
++ rt2880_pinmux_data = mt7621_pinmux_data;
++
++ if (register_cmp_smp_ops())
++ panic("failed to register_vsmp_smp_ops()");
++}
+--
+1.7.10.4
+
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