+++ /dev/null
-From 450b6e8257e22708173d0c1c86d34394fba0c5eb Mon Sep 17 00:00:00 2001
-From: John Crispin <blogic@openwrt.org>
-Date: Mon, 7 Dec 2015 17:08:31 +0100
-Subject: [PATCH 01/53] arch: mips: ralink: add mt7621 support
-
-Signed-off-by: John Crispin <blogic@openwrt.org>
----
- arch/mips/include/asm/mach-ralink/irq.h | 9 +
- arch/mips/include/asm/mach-ralink/mt7621.h | 39 ++++
- arch/mips/kernel/mips-cm.c | 4 +-
- 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 | 268 ++++++++++++++++++++++++++++
- arch/mips/ralink/malta-amon.c | 81 +++++++++
- arch/mips/ralink/mt7621.c | 209 ++++++++++++++++++++++
- 10 files changed, 638 insertions(+), 3 deletions(-)
- 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
-
---- /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
---- /dev/null
-+++ b/arch/mips/include/asm/mach-ralink/mt7621.h
-@@ -0,0 +1,42 @@
-+/*
-+ * 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_PALMBUS_BASE 0x1C000000
-+#define MT7621_PALMBUS_SIZE 0x03FFFFFF
-+
-+#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
---- 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
---- a/arch/mips/ralink/Kconfig
-+++ b/arch/mips/ralink/Kconfig
-@@ -12,6 +12,11 @@ config RALINK_ILL_ACC
- depends on SOC_RT305X
- default y
-
-+config IRQ_INTC
-+ bool
-+ default y
-+ depends on !SOC_MT7621
-+
- choice
- prompt "Ralink SoC selection"
- default SOC_RT305X
-@@ -34,6 +39,16 @@ choice
- config SOC_MT7620
- bool "MT7620/8"
-
-+ config SOC_MT7621
-+ bool "MT7621"
-+ select MIPS_CPU_SCACHE
-+ select SYS_SUPPORTS_MULTITHREADING
-+ select SYS_SUPPORTS_SMP
-+ select SYS_SUPPORTS_MIPS_CPS
-+ select MIPS_GIC
-+ select COMMON_CLK
-+ select CLKSRC_MIPS_GIC
-+ select HW_HAS_PCI
- endchoice
-
- choice
-@@ -65,6 +80,10 @@ choice
- depends on SOC_MT7620
- select BUILTIN_DTB
-
-+ config DTB_MT7621_EVAL
-+ bool "MT7621 eval kit"
-+ depends on SOC_MT7621
-+
- endchoice
-
- endif
---- a/arch/mips/ralink/Makefile
-+++ b/arch/mips/ralink/Makefile
-@@ -6,16 +6,24 @@
- # 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
-+
-+ifndef CONFIG_MIPS_GIC
-+ obj-y += clk.o timer.o
-+endif
-
- obj-$(CONFIG_CLKEVT_RT3352) += cevt-rt3352.o
-
- obj-$(CONFIG_RALINK_ILL_ACC) += ill_acc.o
-
-+obj-$(CONFIG_IRQ_INTC) += irq.o
-+obj-$(CONFIG_MIPS_GIC) += irq-gic.o timer-gic.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
-
---- a/arch/mips/ralink/Platform
-+++ b/arch/mips/ralink/Platform
-@@ -27,3 +27,8 @@ cflags-$(CONFIG_SOC_RT3883) += -I$(srctr
- #
- 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
---- /dev/null
-+++ b/arch/mips/ralink/irq-gic.c
-@@ -0,0 +1,18 @@
-+#include <linux/init.h>
-+
-+#include <linux/of.h>
-+#include <linux/irqchip.h>
-+#include <linux/irqchip/mips-gic.h>
-+
-+int get_c0_perfcount_int(void)
-+{
-+ return gic_get_c0_perfcount_int();
-+}
-+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
-+
-+void __init
-+arch_init_irq(void)
-+{
-+ irqchip_init();
-+}
-+
---- /dev/null
-+++ b/arch/mips/ralink/mt7621.c
-@@ -0,0 +1,223 @@
-+/*
-+ * 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/mipsregs.h>
-+#include <asm/smp-ops.h>
-+#include <asm/mips-cm.h>
-+#include <asm/mips-cpc.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_UART3_MASK 0x3
-+#define MT7621_GPIO_MODE_UART3_SHIFT 3
-+#define MT7621_GPIO_MODE_UART3_GPIO 1
-+#define MT7621_GPIO_MODE_UART2_MASK 0x3
-+#define MT7621_GPIO_MODE_UART2_SHIFT 5
-+#define MT7621_GPIO_MODE_UART2_GPIO 1
-+#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_MASK 0x3
-+#define MT7621_GPIO_MODE_MDIO_SHIFT 12
-+#define MT7621_GPIO_MODE_MDIO_GPIO 1
-+#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),
-+ FUNC("i2s", 2, 5, 4),
-+ FUNC("spdif3", 3, 5, 4),
-+};
-+static struct rt2880_pmx_func uart2_grp[] = {
-+ FUNC("uart2", 0, 9, 4),
-+ FUNC("pcm", 2, 9, 4),
-+ FUNC("spdif2", 3, 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("nand1", 2, 34, 7),
-+};
-+static struct rt2880_pmx_func sdhci_grp[] = {
-+ FUNC("sdhci", 0, 41, 8),
-+ FUNC("nand2", 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_G("uart3", uart3_grp, MT7621_GPIO_MODE_UART3_MASK,
-+ MT7621_GPIO_MODE_UART3_GPIO, MT7621_GPIO_MODE_UART3_SHIFT),
-+ GRP_G("uart2", uart2_grp, MT7621_GPIO_MODE_UART2_MASK,
-+ MT7621_GPIO_MODE_UART2_GPIO, MT7621_GPIO_MODE_UART2_SHIFT),
-+ 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_G("mdio", mdio_grp, MT7621_GPIO_MODE_MDIO_MASK,
-+ MT7621_GPIO_MODE_MDIO_GPIO, MT7621_GPIO_MODE_MDIO_SHIFT),
-+ 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 }
-+};
-+
-+phys_addr_t mips_cpc_default_phys_base() {
-+ panic("Cannot detect cpc address");
-+}
-+
-+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;
-+ }
-+}
-+
-+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;
-+
-+ /* Early detection of CMP support */
-+ mips_cm_probe();
-+ mips_cpc_probe();
-+
-+ if (mips_cm_numiocu()) {
-+ /* mips_cm_probe() wipes out bootloader
-+ config for CM regions and we have to configure them
-+ again. This SoC cannot talk to pamlbus devices
-+ witout proper iocu region set up.
-+
-+ FIXME: it would be better to do this with values
-+ from DT, but we need this very early because
-+ without this we cannot talk to pretty much anything
-+ including serial.
-+ */
-+ write_gcr_reg0_base(MT7621_PALMBUS_BASE);
-+ write_gcr_reg0_mask(~MT7621_PALMBUS_SIZE | CM_GCR_REGn_MASK_CMTGT_IOCU0);
-+ }
-+
-+ if (!register_cps_smp_ops())
-+ return;
-+ if (!register_cmp_smp_ops())
-+ return;
-+ if (!register_vsmp_smp_ops())
-+ return;
-+}
---- /dev/null
-+++ b/arch/mips/ralink/timer-gic.c
-@@ -0,0 +1,15 @@
-+#include <linux/init.h>
-+
-+#include <linux/of.h>
-+#include <linux/clk-provider.h>
-+#include <linux/clocksource.h>
-+
-+#include "common.h"
-+
-+void __init plat_time_init(void)
-+{
-+ ralink_of_remap();
-+
-+ of_clk_init(NULL);
-+ clocksource_of_init();
-+}
projects / openwrt.git / blobdiff