Commit f671e022 authored by Hideki EIRAKU's avatar Hideki EIRAKU Committed by Joerg Roedel
Browse files

ARM: mach-shmobile: r8a7740: Add IPMMU device 



This patch adds an IPMMU device and notifies the IPMMU driver which
devices are connected via the IPMMU module.  All devices connected to the main
memory bus via the IPMMU module MUST be registered when SHMOBILE_IPMMU and
SHMOBILE_IOMMU are enabled because physical address cannot be used
while the IPMMU module's MMU function is enabled.

Signed-off-by: default avatarHideki EIRAKU <hdk@igel.co.jp>
Acked-by: default avatarPaul Mundt <lethal@linux-sh.org>
Acked-by: default avatarSimon Horman <horms+renesas@verge.net.au>
Signed-off-by: default avatarJoerg Roedel <joro@8bytes.org>
parent 9a27dee7

arch/arm/mach-shmobile/setup-r8a7740.c

+33 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ 
#include <linux/sh_dma.h>

#include <linux/sh_timer.h>

#include <linux/dma-mapping.h>

#include <linux/platform_data/sh_ipmmu.h>

#include <mach/dma-register.h>

#include <mach/r8a7740.h>

#include <mach/pm-rmobile.h>
@@ -262,6 +263,37 @@ static struct platform_device cmt10_device = { 
	.num_resources	= ARRAY_SIZE(cmt10_resources),

};



/* IPMMUI (an IPMMU module for ICB/LMB) */

static struct resource ipmmu_resources[] = {

	[0] = {

		.name	= "IPMMUI",

		.start	= 0xfe951000,

		.end	= 0xfe9510ff,

		.flags	= IORESOURCE_MEM,

	},

};



static const char * const ipmmu_dev_names[] = {

	"sh_mobile_lcdc_fb.0",

	"sh_mobile_lcdc_fb.1",

	"sh_mobile_ceu.0",

};



static struct shmobile_ipmmu_platform_data ipmmu_platform_data = {

	.dev_names = ipmmu_dev_names,

	.num_dev_names = ARRAY_SIZE(ipmmu_dev_names),

};



static struct platform_device ipmmu_device = {

	.name           = "ipmmu",

	.id             = -1,

	.dev = {

		.platform_data = &ipmmu_platform_data,

	},

	.resource       = ipmmu_resources,

	.num_resources  = ARRAY_SIZE(ipmmu_resources),

};



static struct platform_device *r8a7740_early_devices[] __initdata = {

	&scif0_device,

	&scif1_device,
@@ -273,6 +305,7 @@ static struct platform_device *r8a7740_early_devices[] __initdata = { 
	&scif7_device,

	&scifb_device,

	&cmt10_device,

	&ipmmu_device,

};



/* DMA */

CRA Git | Maintained and supported by SUSTech CRA and CCSE