lantiq: add 3.18 support

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

SVN-Revision: 44348

1 files changed, 86 insertions, 0 deletions

diff --git a/target/linux/lantiq/patches-3.18/0003-MIPS-lantiq-handle-vmmc-memory-reservation.patch b/target/linux/lantiq/patches-3.18/0003-MIPS-lantiq-handle-vmmc-memory-reservation.patch
new file mode 100644
index 0000000000..cc281b6f8f
--- /dev/null
+++ b/target/linux/lantiq/patches-3.18/0003-MIPS-lantiq-handle-vmmc-memory-reservation.patch
@@ -0,0 +1,86 @@
+From 16e315864132b59749faff739230daf4cee9abbb Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Wed, 13 Mar 2013 10:04:01 +0100
+Subject: [PATCH 03/36] MIPS: lantiq: handle vmmc memory reservation
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/lantiq/xway/Makefile |    2 ++
+ arch/mips/lantiq/xway/vmmc.c   |   63 ++++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 65 insertions(+)
+ create mode 100644 arch/mips/lantiq/xway/vmmc.c
+
+--- a/arch/mips/lantiq/xway/Makefile
++++ b/arch/mips/lantiq/xway/Makefile
+@@ -1,3 +1,5 @@
+ obj-y := prom.o sysctrl.o clk.o reset.o dma.o gptu.o dcdc.o
+ 
++obj-y += vmmc.o
++
+ obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
+--- /dev/null
++++ b/arch/mips/lantiq/xway/vmmc.c
+@@ -0,0 +1,63 @@
++/*
++ *  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.
++ *
++ *  Copyright (C) 2012 John Crispin <blogic@openwrt.org>
++ */
++
++#include <linux/module.h>
++#include <linux/of_platform.h>
++#include <linux/of_gpio.h>
++#include <linux/dma-mapping.h>
++
++#include <lantiq_soc.h>
++
++static unsigned int *cp1_base = 0;
++unsigned int* ltq_get_cp1_base(void)
++{
++	if (!cp1_base)
++		panic("no cp1 base was set\n");
++	return cp1_base;
++}
++EXPORT_SYMBOL(ltq_get_cp1_base);
++
++static int vmmc_probe(struct platform_device *pdev)
++{
++#define CP1_SIZE       (1 << 20)
++	int gpio_count;
++	dma_addr_t dma;
++	cp1_base =
++		(void*)CPHYSADDR(dma_alloc_coherent(NULL, CP1_SIZE, &dma, GFP_ATOMIC));
++
++	gpio_count = of_gpio_count(pdev->dev.of_node);
++	while (gpio_count > 0) {
++		enum of_gpio_flags flags;
++		int gpio = of_get_gpio_flags(pdev->dev.of_node, --gpio_count, &flags);
++		if (gpio_request(gpio, "vmmc-relay"))
++			continue;
++		dev_info(&pdev->dev, "requested GPIO %d\n", gpio);
++		gpio_direction_output(gpio, (flags & OF_GPIO_ACTIVE_LOW) ? (0) : (1));
++	}
++
++	dev_info(&pdev->dev, "reserved %dMB at 0x%p", CP1_SIZE >> 20, cp1_base);
++
++	return 0;
++}
++
++static const struct of_device_id vmmc_match[] = {
++	{ .compatible = "lantiq,vmmc" },
++	{},
++};
++MODULE_DEVICE_TABLE(of, vmmc_match);
++
++static struct platform_driver vmmc_driver = {
++	.probe = vmmc_probe,
++	.driver = {
++		.name = "lantiq,vmmc",
++		.owner = THIS_MODULE,
++		.of_match_table = vmmc_match,
++	},
++};
++
++module_platform_driver(vmmc_driver);