[PATCH v5 3/4] ARM: mach-shmobile: sh73a0: Add IPMMU device
From: Hideki EIRAKU <hidden>
Date: 2012-12-25 11:19:59
Also in:
linux-arm-kernel, linux-iommu, lkml
Subsystem:
arm port, arm/risc-v/renesas architecture, the rest · Maintainers:
Russell King, Geert Uytterhoeven, Magnus Damm, Linus Torvalds
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: Hideki EIRAKU <redacted> --- arch/arm/mach-shmobile/setup-sh73a0.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+)
diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c
index db99a4a..36c2b2e 100644
--- a/arch/arm/mach-shmobile/setup-sh73a0.c
+++ b/arch/arm/mach-shmobile/setup-sh73a0.c@@ -30,6 +30,7 @@ #include <linux/sh_dma.h> #include <linux/sh_intc.h> #include <linux/sh_timer.h> +#include <linux/platform_data/sh_ipmmu.h> #include <mach/dma-register.h> #include <mach/hardware.h> #include <mach/irqs.h>
@@ -754,6 +755,35 @@ static struct platform_device pmu_device = { .resource = pmu_resources, }; +/* an IPMMU module for ICB */ +static struct resource ipmmu_resources[] = { + [0] = { + .name = "IPMMU", + .start = 0xfe951000, + .end = 0xfe9510ff, + .flags = IORESOURCE_MEM, + }, +}; + +static const char * const ipmmu_dev_names[] = { + "sh_mobile_lcdc_fb.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 *sh73a0_early_devices[] __initdata = { &scif0_device, &scif1_device,
@@ -767,6 +797,7 @@ static struct platform_device *sh73a0_early_devices[] __initdata = { &cmt10_device, &tmu00_device, &tmu01_device, + &ipmmu_device, }; static struct platform_device *sh73a0_late_devices[] __initdata = {
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1.8.0