diff options
Diffstat (limited to 'arch/sh/drivers/superhyway/ops-sh4-202.c')
-rw-r--r-- | arch/sh/drivers/superhyway/ops-sh4-202.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/arch/sh/drivers/superhyway/ops-sh4-202.c b/arch/sh/drivers/superhyway/ops-sh4-202.c deleted file mode 100644 index 490142274e3b..000000000000 --- a/arch/sh/drivers/superhyway/ops-sh4-202.c +++ /dev/null @@ -1,168 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * arch/sh/drivers/superhyway/ops-sh4-202.c - * - * SuperHyway bus support for SH4-202 - * - * Copyright (C) 2005 Paul Mundt - */ -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/superhyway.h> -#include <linux/string.h> -#include <asm/addrspace.h> -#include <asm/io.h> - -#define PHYS_EMI_CBLOCK P4SEGADDR(0x1ec00000) -#define PHYS_EMI_DBLOCK P4SEGADDR(0x08000000) -#define PHYS_FEMI_CBLOCK P4SEGADDR(0x1f800000) -#define PHYS_FEMI_DBLOCK P4SEGADDR(0x00000000) - -#define PHYS_EPBR_BLOCK P4SEGADDR(0x1de00000) -#define PHYS_DMAC_BLOCK P4SEGADDR(0x1fa00000) -#define PHYS_PBR_BLOCK P4SEGADDR(0x1fc00000) - -static struct resource emi_resources[] = { - [0] = { - .start = PHYS_EMI_CBLOCK, - .end = PHYS_EMI_CBLOCK + 0x00300000 - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = PHYS_EMI_DBLOCK, - .end = PHYS_EMI_DBLOCK + 0x08000000 - 1, - .flags = IORESOURCE_MEM, - }, -}; - -static struct superhyway_device emi_device = { - .name = "emi", - .num_resources = ARRAY_SIZE(emi_resources), - .resource = emi_resources, -}; - -static struct resource femi_resources[] = { - [0] = { - .start = PHYS_FEMI_CBLOCK, - .end = PHYS_FEMI_CBLOCK + 0x00100000 - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = PHYS_FEMI_DBLOCK, - .end = PHYS_FEMI_DBLOCK + 0x08000000 - 1, - .flags = IORESOURCE_MEM, - }, -}; - -static struct superhyway_device femi_device = { - .name = "femi", - .num_resources = ARRAY_SIZE(femi_resources), - .resource = femi_resources, -}; - -static struct resource epbr_resources[] = { - [0] = { - .start = P4SEGADDR(0x1e7ffff8), - .end = P4SEGADDR(0x1e7ffff8 + (sizeof(u32) * 2) - 1), - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = PHYS_EPBR_BLOCK, - .end = PHYS_EPBR_BLOCK + 0x00a00000 - 1, - .flags = IORESOURCE_MEM, - }, -}; - -static struct superhyway_device epbr_device = { - .name = "epbr", - .num_resources = ARRAY_SIZE(epbr_resources), - .resource = epbr_resources, -}; - -static struct resource dmac_resource = { - .start = PHYS_DMAC_BLOCK, - .end = PHYS_DMAC_BLOCK + 0x00100000 - 1, - .flags = IORESOURCE_MEM, -}; - -static struct superhyway_device dmac_device = { - .name = "dmac", - .num_resources = 1, - .resource = &dmac_resource, -}; - -static struct resource pbr_resources[] = { - [0] = { - .start = P4SEGADDR(0x1ffffff8), - .end = P4SEGADDR(0x1ffffff8 + (sizeof(u32) * 2) - 1), - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = PHYS_PBR_BLOCK, - .end = PHYS_PBR_BLOCK + 0x00400000 - (sizeof(u32) * 2) - 1, - .flags = IORESOURCE_MEM, - }, -}; - -static struct superhyway_device pbr_device = { - .name = "pbr", - .num_resources = ARRAY_SIZE(pbr_resources), - .resource = pbr_resources, -}; - -static struct superhyway_device *sh4202_devices[] __initdata = { - &emi_device, &femi_device, &epbr_device, &dmac_device, &pbr_device, -}; - -static int sh4202_read_vcr(unsigned long base, struct superhyway_vcr_info *vcr) -{ - u32 vcrh, vcrl; - u64 tmp; - - /* - * XXX: Even though the SH4-202 Evaluation Device documentation - * indicates that VCRL is mapped first with VCRH at a + 0x04 - * offset, the opposite seems to be true. - * - * Some modules (PBR and ePBR for instance) also appear to have - * VCRL/VCRH flipped in the documentation, but on the SH4-202 - * itself it appears that these are all consistently mapped with - * VCRH preceding VCRL. - * - * Do not trust the documentation, for it is evil. - */ - vcrh = __raw_readl(base); - vcrl = __raw_readl(base + sizeof(u32)); - - tmp = ((u64)vcrh << 32) | vcrl; - memcpy(vcr, &tmp, sizeof(u64)); - - return 0; -} - -static int sh4202_write_vcr(unsigned long base, struct superhyway_vcr_info vcr) -{ - u64 tmp = *(u64 *)&vcr; - - __raw_writel((tmp >> 32) & 0xffffffff, base); - __raw_writel(tmp & 0xffffffff, base + sizeof(u32)); - - return 0; -} - -static struct superhyway_ops sh4202_superhyway_ops = { - .read_vcr = sh4202_read_vcr, - .write_vcr = sh4202_write_vcr, -}; - -struct superhyway_bus superhyway_channels[] = { - { &sh4202_superhyway_ops, }, - { 0, }, -}; - -int __init superhyway_scan_bus(struct superhyway_bus *bus) -{ - return superhyway_add_devices(bus, sh4202_devices, - ARRAY_SIZE(sh4202_devices)); -} - |