iommu/shmobile: Remove unused Renesas IPMMU/IPMMUI driver

As of commit 44d88c7 ("ARM: shmobile: Remove legacy SoC code
for R-Mobile A1"), the Renesas IPMMU/IPMMUI driver is no longer used.
In theory it could still be used on SH-Mobile AG5 and R-Mobile A1 SoCs,
but that requires adding DT support to the driver, which is not
planned.

Remove the driver, it can be resurrected from git history when needed.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

drivers/iommu/Kconfig

@@ -263,81 +263,6 @@ config EXYNOS_IOMMU_DEBUG
 
 	  Say N unless you need kernel log message for IOMMU debugging.
 
-config SHMOBILE_IPMMU
-	bool
-
-config SHMOBILE_IPMMU_TLB
-	bool
-
-config SHMOBILE_IOMMU
-	bool "IOMMU for Renesas IPMMU/IPMMUI"
-	default n
-	depends on ARM && MMU
-	depends on ARCH_SHMOBILE || COMPILE_TEST
-	select IOMMU_API
-	select ARM_DMA_USE_IOMMU
-	select SHMOBILE_IPMMU
-	select SHMOBILE_IPMMU_TLB
-	help
-	  Support for Renesas IPMMU/IPMMUI. This option enables
-	  remapping of DMA memory accesses from all of the IP blocks
-	  on the ICB.
-
-	  Warning: Drivers (including userspace drivers of UIO
-	  devices) of the IP blocks on the ICB *must* use addresses
-	  allocated from the IPMMU (iova) for DMA with this option
-	  enabled.
-
-	  If unsure, say N.
-
-choice
-	prompt "IPMMU/IPMMUI address space size"
-	default SHMOBILE_IOMMU_ADDRSIZE_2048MB
-	depends on SHMOBILE_IOMMU
-	help
-	  This option sets IPMMU/IPMMUI address space size by
-	  adjusting the 1st level page table size. The page table size
-	  is calculated as follows:
-
-	      page table size = number of page table entries * 4 bytes
-	      number of page table entries = address space size / 1 MiB
-
-	  For example, when the address space size is 2048 MiB, the
-	  1st level page table size is 8192 bytes.
-
-	config SHMOBILE_IOMMU_ADDRSIZE_2048MB
-		bool "2 GiB"
-
-	config SHMOBILE_IOMMU_ADDRSIZE_1024MB
-		bool "1 GiB"
-
-	config SHMOBILE_IOMMU_ADDRSIZE_512MB
-		bool "512 MiB"
-
-	config SHMOBILE_IOMMU_ADDRSIZE_256MB
-		bool "256 MiB"
-
-	config SHMOBILE_IOMMU_ADDRSIZE_128MB
-		bool "128 MiB"
-
-	config SHMOBILE_IOMMU_ADDRSIZE_64MB
-		bool "64 MiB"
-
-	config SHMOBILE_IOMMU_ADDRSIZE_32MB
-		bool "32 MiB"
-
-endchoice
-
-config SHMOBILE_IOMMU_L1SIZE
-	int
-	default 8192 if SHMOBILE_IOMMU_ADDRSIZE_2048MB
-	default 4096 if SHMOBILE_IOMMU_ADDRSIZE_1024MB
-	default 2048 if SHMOBILE_IOMMU_ADDRSIZE_512MB
-	default 1024 if SHMOBILE_IOMMU_ADDRSIZE_256MB
-	default 512 if SHMOBILE_IOMMU_ADDRSIZE_128MB
-	default 256 if SHMOBILE_IOMMU_ADDRSIZE_64MB
-	default 128 if SHMOBILE_IOMMU_ADDRSIZE_32MB
-
 config IPMMU_VMSA
 	bool "Renesas VMSA-compatible IPMMU"
 	depends on ARM_LPAE

drivers/iommu/Makefile

@@ -22,7 +22,5 @@ obj-$(CONFIG_ROCKCHIP_IOMMU) += rockchip-iommu.o
 obj-$(CONFIG_TEGRA_IOMMU_GART) += tegra-gart.o
 obj-$(CONFIG_TEGRA_IOMMU_SMMU) += tegra-smmu.o
 obj-$(CONFIG_EXYNOS_IOMMU) += exynos-iommu.o
-obj-$(CONFIG_SHMOBILE_IOMMU) += shmobile-iommu.o
-obj-$(CONFIG_SHMOBILE_IPMMU) += shmobile-ipmmu.o
 obj-$(CONFIG_FSL_PAMU) += fsl_pamu.o fsl_pamu_domain.o
 obj-$(CONFIG_S390_IOMMU) += s390-iommu.o