ramips: sync kernel patches with the mips-next tree

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36431 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 264 insertions, 0 deletions

diff --git a/target/linux/ramips/patches-3.8/0111-MIPS-ralink-adds-support-for-RT2880-SoC-family.patch b/target/linux/ramips/patches-3.8/0111-MIPS-ralink-adds-support-for-RT2880-SoC-family.patch
new file mode 100644
index 0000000000..9cfa509e54
--- /dev/null
+++ b/target/linux/ramips/patches-3.8/0111-MIPS-ralink-adds-support-for-RT2880-SoC-family.patch
@@ -0,0 +1,264 @@
+From cccb9a7b42227a442ca42d590c838c8b6fa0eba1 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sun, 27 Jan 2013 09:17:20 +0100
+Subject: [PATCH 111/137] MIPS: ralink: adds support for RT2880 SoC family
+
+Add support code for rt2880 SOC.
+
+The code detects the SoC and registers the clk / pinmux settings.
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+Patchwork: http://patchwork.linux-mips.org/patch/5176/
+---
+ arch/mips/Kconfig                          |    2 +-
+ arch/mips/include/asm/mach-ralink/rt288x.h |   49 ++++++++++
+ arch/mips/ralink/Kconfig                   |    3 +
+ arch/mips/ralink/Makefile                  |    1 +
+ arch/mips/ralink/Platform                  |    5 +
+ arch/mips/ralink/rt288x.c                  |  139 ++++++++++++++++++++++++++++
+ 6 files changed, 198 insertions(+), 1 deletion(-)
+ create mode 100644 arch/mips/include/asm/mach-ralink/rt288x.h
+ create mode 100644 arch/mips/ralink/rt288x.c
+
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -1189,7 +1189,7 @@ config BOOT_ELF32
+ 
+ config MIPS_L1_CACHE_SHIFT
+ 	int
+-	default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
++	default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
+ 	default "6" if MIPS_CPU_SCACHE
+ 	default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
+ 	default "5"
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ralink/rt288x.h
+@@ -0,0 +1,49 @@
++/*
++ * 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 _RT288X_REGS_H_
++#define _RT288X_REGS_H_
++
++#define RT2880_SYSC_BASE		0x00300000
++
++#define SYSC_REG_CHIP_NAME0		0x00
++#define SYSC_REG_CHIP_NAME1		0x04
++#define SYSC_REG_CHIP_ID		0x0c
++#define SYSC_REG_SYSTEM_CONFIG		0x10
++#define SYSC_REG_CLKCFG			0x30
++
++#define RT2880_CHIP_NAME0		0x38325452
++#define RT2880_CHIP_NAME1		0x20203038
++
++#define CHIP_ID_ID_MASK			0xff
++#define CHIP_ID_ID_SHIFT		8
++#define CHIP_ID_REV_MASK		0xff
++
++#define SYSTEM_CONFIG_CPUCLK_SHIFT	20
++#define SYSTEM_CONFIG_CPUCLK_MASK	0x3
++#define SYSTEM_CONFIG_CPUCLK_250	0x0
++#define SYSTEM_CONFIG_CPUCLK_266	0x1
++#define SYSTEM_CONFIG_CPUCLK_280	0x2
++#define SYSTEM_CONFIG_CPUCLK_300	0x3
++
++#define RT2880_GPIO_MODE_I2C		BIT(0)
++#define RT2880_GPIO_MODE_UART0		BIT(1)
++#define RT2880_GPIO_MODE_SPI		BIT(2)
++#define RT2880_GPIO_MODE_UART1		BIT(3)
++#define RT2880_GPIO_MODE_JTAG		BIT(4)
++#define RT2880_GPIO_MODE_MDIO		BIT(5)
++#define RT2880_GPIO_MODE_SDRAM		BIT(6)
++#define RT2880_GPIO_MODE_PCI		BIT(7)
++
++#define CLKCFG_SRAM_CS_N_WDT		BIT(9)
++
++#endif
+--- a/arch/mips/ralink/Kconfig
++++ b/arch/mips/ralink/Kconfig
+@@ -6,6 +6,9 @@ choice
+ 	help
+ 	  Select Ralink MIPS SoC type.
+ 
++	config SOC_RT288X
++		bool "RT288x"
++
+ 	config SOC_RT305X
+ 		bool "RT305x"
+ 		select USB_ARCH_HAS_HCD
+--- a/arch/mips/ralink/Makefile
++++ b/arch/mips/ralink/Makefile
+@@ -8,6 +8,7 @@
+ 
+ obj-y := prom.o of.o reset.o clk.o irq.o
+ 
++obj-$(CONFIG_SOC_RT288X) += rt288x.o
+ obj-$(CONFIG_SOC_RT305X) += rt305x.o
+ 
+ obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+--- a/arch/mips/ralink/Platform
++++ b/arch/mips/ralink/Platform
+@@ -5,6 +5,11 @@ core-$(CONFIG_RALINK)		+= arch/mips/rali
+ cflags-$(CONFIG_RALINK)		+= -I$(srctree)/arch/mips/include/asm/mach-ralink
+ 
+ #
++# Ralink RT288x
++#
++load-$(CONFIG_SOC_RT288X)	+= 0xffffffff88000000
++
++#
+ # Ralink RT305x
+ #
+ load-$(CONFIG_SOC_RT305X)	+= 0xffffffff80000000
+--- /dev/null
++++ b/arch/mips/ralink/rt288x.c
+@@ -0,0 +1,139 @@
++/*
++ * 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/mach-ralink/ralink_regs.h>
++#include <asm/mach-ralink/rt288x.h>
++
++#include "common.h"
++
++static struct ralink_pinmux_grp mode_mux[] = {
++	{
++		.name = "i2c",
++		.mask = RT2880_GPIO_MODE_I2C,
++		.gpio_first = 1,
++		.gpio_last = 2,
++	}, {
++		.name = "spi",
++		.mask = RT2880_GPIO_MODE_SPI,
++		.gpio_first = 3,
++		.gpio_last = 6,
++	}, {
++		.name = "uartlite",
++		.mask = RT2880_GPIO_MODE_UART0,
++		.gpio_first = 7,
++		.gpio_last = 14,
++	}, {
++		.name = "jtag",
++		.mask = RT2880_GPIO_MODE_JTAG,
++		.gpio_first = 17,
++		.gpio_last = 21,
++	}, {
++		.name = "mdio",
++		.mask = RT2880_GPIO_MODE_MDIO,
++		.gpio_first = 22,
++		.gpio_last = 23,
++	}, {
++		.name = "sdram",
++		.mask = RT2880_GPIO_MODE_SDRAM,
++		.gpio_first = 24,
++		.gpio_last = 39,
++	}, {
++		.name = "pci",
++		.mask = RT2880_GPIO_MODE_PCI,
++		.gpio_first = 40,
++		.gpio_last = 71,
++	}, {0}
++};
++
++static void rt288x_wdt_reset(void)
++{
++	u32 t;
++
++	/* enable WDT reset output on pin SRAM_CS_N */
++	t = rt_sysc_r32(SYSC_REG_CLKCFG);
++	t |= CLKCFG_SRAM_CS_N_WDT;
++	rt_sysc_w32(t, SYSC_REG_CLKCFG);
++}
++
++struct ralink_pinmux rt_gpio_pinmux = {
++	.mode = mode_mux,
++	.wdt_reset = rt288x_wdt_reset,
++};
++
++void __init ralink_clk_init(void)
++{
++	unsigned long cpu_rate;
++	u32 t = rt_sysc_r32(SYSC_REG_SYSTEM_CONFIG);
++	t = ((t >> SYSTEM_CONFIG_CPUCLK_SHIFT) & SYSTEM_CONFIG_CPUCLK_MASK);
++
++	switch (t) {
++	case SYSTEM_CONFIG_CPUCLK_250:
++		cpu_rate = 250000000;
++		break;
++	case SYSTEM_CONFIG_CPUCLK_266:
++		cpu_rate = 266666667;
++		break;
++	case SYSTEM_CONFIG_CPUCLK_280:
++		cpu_rate = 280000000;
++		break;
++	case SYSTEM_CONFIG_CPUCLK_300:
++		cpu_rate = 300000000;
++		break;
++	}
++
++	ralink_clk_add("cpu", cpu_rate);
++	ralink_clk_add("300100.timer", cpu_rate / 2);
++	ralink_clk_add("300120.watchdog", cpu_rate / 2);
++	ralink_clk_add("300500.uart", cpu_rate / 2);
++	ralink_clk_add("300c00.uartlite", cpu_rate / 2);
++	ralink_clk_add("400000.ethernet", cpu_rate / 2);
++}
++
++void __init ralink_of_remap(void)
++{
++	rt_sysc_membase = plat_of_remap_node("ralink,rt2880-sysc");
++	rt_memc_membase = plat_of_remap_node("ralink,rt2880-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(RT2880_SYSC_BASE);
++	const char *name;
++	u32 n0;
++	u32 n1;
++	u32 id;
++
++	n0 = __raw_readl(sysc + SYSC_REG_CHIP_NAME0);
++	n1 = __raw_readl(sysc + SYSC_REG_CHIP_NAME1);
++	id = __raw_readl(sysc + SYSC_REG_CHIP_ID);
++
++	if (n0 == RT2880_CHIP_NAME0 && n1 == RT2880_CHIP_NAME1) {
++		soc_info->compatible = "ralink,r2880-soc";
++		name = "RT2880";
++	} else {
++		panic("rt288x: unknown SoC, n0:%08x n1:%08x", n0, n1);
++	}
++
++	snprintf(soc_info->sys_type, RAMIPS_SYS_TYPE_LEN,
++		"Ralink %s id:%u rev:%u",
++		name,
++		(id >> CHIP_ID_ID_SHIFT) & CHIP_ID_ID_MASK,
++		(id & CHIP_ID_REV_MASK));
++}