diff options
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/boards/mach-cayman/irq.c | 2 | ||||
| -rw-r--r-- | arch/sh/boards/mach-cayman/setup.c | 2 | ||||
| -rw-r--r-- | arch/sh/drivers/pci/pci-sh5.c | 4 | ||||
| -rw-r--r-- | arch/sh/include/asm/io.h | 7 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/irq/intc-sh5.c | 2 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh5/Makefile | 3 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh5/clock-sh5.c | 2 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh5/entry.S | 8 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh5/setup-sh5.c | 46 | ||||
| -rw-r--r-- | arch/sh/kernel/time_64.c | 4 | ||||
| -rw-r--r-- | arch/sh/mm/ioremap_64.c | 265 |
11 files changed, 155 insertions, 190 deletions
diff --git a/arch/sh/boards/mach-cayman/irq.c b/arch/sh/boards/mach-cayman/irq.c index da62ad516994..dbb00c991324 100644 --- a/arch/sh/boards/mach-cayman/irq.c +++ b/arch/sh/boards/mach-cayman/irq.c @@ -161,7 +161,7 @@ void init_cayman_irq(void) { int i; - epld_virt = onchip_remap(EPLD_BASE, 1024, "EPLD"); + epld_virt = (unsigned long)ioremap_nocache(EPLD_BASE, 1024); if (!epld_virt) { printk(KERN_ERR "Cayman IRQ: Unable to remap EPLD\n"); return; diff --git a/arch/sh/boards/mach-cayman/setup.c b/arch/sh/boards/mach-cayman/setup.c index e7f9cc5f2ff1..7e8216ac31bd 100644 --- a/arch/sh/boards/mach-cayman/setup.c +++ b/arch/sh/boards/mach-cayman/setup.c @@ -102,7 +102,7 @@ static int __init smsc_superio_setup(void) { unsigned char devid, devrev; - smsc_superio_virt = onchip_remap(SMSC_SUPERIO_BASE, 1024, "SMSC SuperIO"); + smsc_superio_virt = (unsigned long)ioremap_nocache(SMSC_SUPERIO_BASE, 1024); if (!smsc_superio_virt) { panic("Unable to remap SMSC SuperIO\n"); } diff --git a/arch/sh/drivers/pci/pci-sh5.c b/arch/sh/drivers/pci/pci-sh5.c index cf431852213c..873ed2b44055 100644 --- a/arch/sh/drivers/pci/pci-sh5.c +++ b/arch/sh/drivers/pci/pci-sh5.c @@ -119,12 +119,12 @@ static int __init sh5pci_init(void) return -EINVAL; } - pcicr_virt = onchip_remap(SH5PCI_ICR_BASE, 1024, "PCICR"); + pcicr_virt = (unsigned long)ioremap_nocache(SH5PCI_ICR_BASE, 1024); if (!pcicr_virt) { panic("Unable to remap PCICR\n"); } - PCI_IO_AREA = onchip_remap(SH5PCI_IO_BASE, 0x10000, "PCIIO"); + PCI_IO_AREA = (unsigned long)ioremap_nocache(SH5PCI_IO_BASE, 0x10000); if (!PCI_IO_AREA) { panic("Unable to remap PCIIO\n"); } diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h index ef217344afcb..c7c360b58667 100644 --- a/arch/sh/include/asm/io.h +++ b/arch/sh/include/asm/io.h @@ -224,11 +224,6 @@ void __iomem *__ioremap(unsigned long offset, unsigned long size, unsigned long flags); void __iounmap(void __iomem *addr); -/* arch/sh/mm/ioremap_64.c */ -unsigned long onchip_remap(unsigned long addr, unsigned long size, - const char *name); -extern void onchip_unmap(unsigned long vaddr); - static inline void __iomem * __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags) { @@ -263,8 +258,6 @@ __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags) return __ioremap(offset, size, flags); } #else -#define onchip_remap(addr, size, name) (addr) -#define onchip_unmap(addr) do { } while (0) #define __ioremap_mode(offset, size, flags) ((void __iomem *)(offset)) #define __iounmap(addr) do { } while (0) #endif /* CONFIG_MMU */ diff --git a/arch/sh/kernel/cpu/irq/intc-sh5.c b/arch/sh/kernel/cpu/irq/intc-sh5.c index d8679a4d93a4..02d8137547e8 100644 --- a/arch/sh/kernel/cpu/irq/intc-sh5.c +++ b/arch/sh/kernel/cpu/irq/intc-sh5.c @@ -188,7 +188,7 @@ void __init plat_irq_setup(void) unsigned long reg; int i; - intc_virt = onchip_remap(INTC_BASE, 1024, "INTC"); + intc_virt = (unsigned long)ioremap_nocache(INTC_BASE, 1024); if (!intc_virt) { panic("Unable to remap INTC\n"); } diff --git a/arch/sh/kernel/cpu/sh5/Makefile b/arch/sh/kernel/cpu/sh5/Makefile index ce4602ea23a8..a184a31e686e 100644 --- a/arch/sh/kernel/cpu/sh5/Makefile +++ b/arch/sh/kernel/cpu/sh5/Makefile @@ -6,6 +6,9 @@ obj-y := entry.o probe.o switchto.o obj-$(CONFIG_SH_FPU) += fpu.o obj-$(CONFIG_KALLSYMS) += unwind.o +# CPU subtype setup +obj-$(CONFIG_CPU_SH5) += setup-sh5.o + # Primary on-chip clocks (common) clock-$(CONFIG_CPU_SH5) := clock-sh5.o diff --git a/arch/sh/kernel/cpu/sh5/clock-sh5.c b/arch/sh/kernel/cpu/sh5/clock-sh5.c index 52c49248833a..5486324880e1 100644 --- a/arch/sh/kernel/cpu/sh5/clock-sh5.c +++ b/arch/sh/kernel/cpu/sh5/clock-sh5.c @@ -71,7 +71,7 @@ static struct clk_ops *sh5_clk_ops[] = { void __init arch_init_clk_ops(struct clk_ops **ops, int idx) { - cprc_base = onchip_remap(CPRC_BASE, 1024, "CPRC"); + cprc_base = (unsigned long)ioremap_nocache(CPRC_BASE, 1024); BUG_ON(!cprc_base); if (idx < ARRAY_SIZE(sh5_clk_ops)) diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S index 7e49cb812f8b..516297515b25 100644 --- a/arch/sh/kernel/cpu/sh5/entry.S +++ b/arch/sh/kernel/cpu/sh5/entry.S @@ -1410,8 +1410,8 @@ peek_real_address_q: r2(out) : result quadword This is provided as a cheapskate way of manipulating device - registers for debugging (to avoid the need to onchip_remap the debug - module, and to avoid the need to onchip_remap the watchpoint + registers for debugging (to avoid the need to ioremap the debug + module, and to avoid the need to ioremap the watchpoint controller in a way that identity maps sufficient bits to avoid the SH5-101 cut2 silicon defect). @@ -1459,8 +1459,8 @@ poke_real_address_q: r3 : quadword value to write. This is provided as a cheapskate way of manipulating device - registers for debugging (to avoid the need to onchip_remap the debug - module, and to avoid the need to onchip_remap the watchpoint + registers for debugging (to avoid the need to ioremap the debug + module, and to avoid the need to ioremap the watchpoint controller in a way that identity maps sufficient bits to avoid the SH5-101 cut2 silicon defect). diff --git a/arch/sh/kernel/cpu/sh5/setup-sh5.c b/arch/sh/kernel/cpu/sh5/setup-sh5.c new file mode 100644 index 000000000000..d8d59fea1082 --- /dev/null +++ b/arch/sh/kernel/cpu/sh5/setup-sh5.c @@ -0,0 +1,46 @@ +/* + * SH5-101/SH5-103 CPU Setup + * + * Copyright (C) 2009 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <linux/serial_sci.h> +#include <linux/io.h> +#include <linux/mm.h> +#include <asm/addrspace.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = PHYS_PERIPHERAL_BLOCK + 0x01030000, + .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, + .type = PORT_SCIF, + .irqs = { 39, 40, 42, 0 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh5_devices[] __initdata = { + &sci_device, +}; + +static int __init sh5_devices_setup(void) +{ + return platform_add_devices(sh5_devices, + ARRAY_SIZE(sh5_devices)); +} +__initcall(sh5_devices_setup); diff --git a/arch/sh/kernel/time_64.c b/arch/sh/kernel/time_64.c index f4f5e8ad5bec..7bfeaa09b947 100644 --- a/arch/sh/kernel/time_64.c +++ b/arch/sh/kernel/time_64.c @@ -243,12 +243,12 @@ void __init time_init(void) unsigned long interval; struct clk *clk; - tmu_base = onchip_remap(TMU_BASE, 1024, "TMU"); + tmu_base = (unsigned long)ioremap_nocache(TMU_BASE, 1024); if (!tmu_base) { panic("Unable to remap TMU\n"); } - rtc_base = onchip_remap(RTC_BASE, 1024, "RTC"); + rtc_base = (unsigned long)ioremap_nocache(RTC_BASE, 1024); if (!rtc_base) { panic("Unable to remap RTC\n"); } diff --git a/arch/sh/mm/ioremap_64.c b/arch/sh/mm/ioremap_64.c index 31e1bb5effbe..2331229f8126 100644 --- a/arch/sh/mm/ioremap_64.c +++ b/arch/sh/mm/ioremap_64.c @@ -27,88 +27,17 @@ #include <asm/tlbflush.h> #include <asm/mmu.h> -static void shmedia_mapioaddr(unsigned long, unsigned long); -static unsigned long shmedia_ioremap(struct resource *, u32, int); - -/* - * Generic mapping function (not visible outside): - */ - -/* - * Remap an arbitrary physical address space into the kernel virtual - * address space. Needed when the kernel wants to access high addresses - * directly. - * - * NOTE! We need to allow non-page-aligned mappings too: we will obviously - * have to convert them into an offset in a page-aligned mapping, but the - * caller shouldn't need to know that small detail. - */ -void *__ioremap(unsigned long phys_addr, unsigned long size, - unsigned long flags) -{ - void * addr; - struct vm_struct * area; - unsigned long offset, last_addr; - pgprot_t pgprot; - - /* Don't allow wraparound or zero size */ - last_addr = phys_addr + size - 1; - if (!size || last_addr < phys_addr) - return NULL; - - pgprot = __pgprot(_PAGE_PRESENT | _PAGE_READ | - _PAGE_WRITE | _PAGE_DIRTY | - _PAGE_ACCESSED | _PAGE_SHARED | flags); - - /* - * Mappings have to be page-aligned - */ - offset = phys_addr & ~PAGE_MASK; - phys_addr &= PAGE_MASK; - size = PAGE_ALIGN(last_addr + 1) - phys_addr; - - /* - * Ok, go for it.. - */ - area = get_vm_area(size, VM_IOREMAP); - if (!area) - return NULL; - pr_debug("Get vm_area returns %p addr %p\n", area, area->addr); - area->phys_addr = phys_addr; - addr = area->addr; - if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size, - phys_addr, pgprot)) { - vunmap(addr); - return NULL; - } - return (void *) (offset + (char *)addr); -} -EXPORT_SYMBOL(__ioremap); - -void __iounmap(void *addr) -{ - struct vm_struct *area; - - vfree((void *) (PAGE_MASK & (unsigned long) addr)); - area = remove_vm_area((void *) (PAGE_MASK & (unsigned long) addr)); - if (!area) { - printk(KERN_ERR "iounmap: bad address %p\n", addr); - return; - } - - kfree(area); -} -EXPORT_SYMBOL(__iounmap); - static struct resource shmedia_iomap = { .name = "shmedia_iomap", .start = IOBASE_VADDR + PAGE_SIZE, .end = IOBASE_END - 1, }; -static void shmedia_mapioaddr(unsigned long pa, unsigned long va); +static void shmedia_mapioaddr(unsigned long pa, unsigned long va, + unsigned long flags); static void shmedia_unmapioaddr(unsigned long vaddr); -static unsigned long shmedia_ioremap(struct resource *res, u32 pa, int sz); +static void __iomem *shmedia_ioremap(struct resource *res, u32 pa, + int sz, unsigned long flags); /* * We have the same problem as the SPARC, so lets have the same comment: @@ -130,18 +59,18 @@ static struct xresource xresv[XNRES]; static struct xresource *xres_alloc(void) { - struct xresource *xrp; - int n; - - xrp = xresv; - for (n = 0; n < XNRES; n++) { - if (xrp->xflag == 0) { - xrp->xflag = 1; - return xrp; - } - xrp++; - } - return NULL; + struct xresource *xrp; + int n; + + xrp = xresv; + for (n = 0; n < XNRES; n++) { + if (xrp->xflag == 0) { + xrp->xflag = 1; + return xrp; + } + xrp++; + } + return NULL; } static void xres_free(struct xresource *xrp) @@ -161,76 +90,71 @@ static struct resource *shmedia_find_resource(struct resource *root, return NULL; } -static unsigned long shmedia_alloc_io(unsigned long phys, unsigned long size, - const char *name) +static void __iomem *shmedia_alloc_io(unsigned long phys, unsigned long size, + const char *name, unsigned long flags) { - static int printed_full = 0; - struct xresource *xres; - struct resource *res; - char *tack; - int tlen; - - if (name == NULL) name = "???"; - - if ((xres = xres_alloc()) != 0) { - tack = xres->xname; - res = &xres->xres; - } else { - if (!printed_full) { - printk("%s: done with statics, switching to kmalloc\n", - __func__); - printed_full = 1; - } - tlen = strlen(name); - tack = kmalloc(sizeof (struct resource) + tlen + 1, GFP_KERNEL); - if (!tack) - return -ENOMEM; - memset(tack, 0, sizeof(struct resource)); - res = (struct resource *) tack; - tack += sizeof (struct resource); - } - - strncpy(tack, name, XNMLN); - tack[XNMLN] = 0; - res->name = tack; - - return shmedia_ioremap(res, phys, size); + static int printed_full; + struct xresource *xres; + struct resource *res; + char *tack; + int tlen; + + if (name == NULL) + name = "???"; + + xres = xres_alloc(); + if (xres != 0) { + tack = xres->xname; + res = &xres->xres; + } else { + if (!printed_full) { + printk(KERN_NOTICE "%s: done with statics, " + "switching to kmalloc\n", __func__); + printed_full = 1; + } + tlen = strlen(name); + tack = kmalloc(sizeof(struct resource) + tlen + 1, GFP_KERNEL); + if (!tack) + return NULL; + memset(tack, 0, sizeof(struct resource)); + res = (struct resource *) tack; + tack += sizeof(struct resource); + } + + strncpy(tack, name, XNMLN); + tack[XNMLN] = 0; + res->name = tack; + + return shmedia_ioremap(res, phys, size, flags); } -static unsigned long shmedia_ioremap(struct resource *res, u32 pa, int sz) +static void __iomem *shmedia_ioremap(struct resource *res, u32 pa, int sz, + unsigned long flags) { - unsigned long offset = ((unsigned long) pa) & (~PAGE_MASK); + unsigned long offset = ((unsigned long) pa) & (~PAGE_MASK); unsigned long round_sz = (offset + sz + PAGE_SIZE-1) & PAGE_MASK; - unsigned long va; - unsigned int psz; + unsigned long va; + unsigned int psz; - if (allocate_resource(&shmedia_iomap, res, round_sz, + if (allocate_resource(&shmedia_iomap, res, round_sz, shmedia_iomap.start, shmedia_iomap.end, PAGE_SIZE, NULL, NULL) != 0) { - panic("alloc_io_res(%s): cannot occupy\n", - (res->name != NULL)? res->name: "???"); - } + panic("alloc_io_res(%s): cannot occupy\n", + (res->name != NULL) ? res->name : "???"); + } - va = res->start; - pa &= PAGE_MASK; + va = res->start; + pa &= PAGE_MASK; psz = (res->end - res->start + (PAGE_SIZE - 1)) / PAGE_SIZE; - /* log at boot time ... */ - printk("mapioaddr: %6s [%2d page%s] va 0x%08lx pa 0x%08x\n", - ((res->name != NULL) ? res->name : "???"), - psz, psz == 1 ? " " : "s", va, pa); - - for (psz = res->end - res->start + 1; psz != 0; psz -= PAGE_SIZE) { - shmedia_mapioaddr(pa, va); - va += PAGE_SIZE; - pa += PAGE_SIZE; - } - - res->start += offset; - res->end = res->start + sz - 1; /* not strictly necessary.. */ + for (psz = res->end - res->start + 1; psz != 0; psz -= PAGE_SIZE) { + shmedia_mapioaddr(pa, va, flags); + va += PAGE_SIZE; + pa += PAGE_SIZE; + } - return res->start; + return (void __iomem *)(unsigned long)(res->start + offset); } static void shmedia_free_io(struct resource *res) @@ -249,14 +173,12 @@ static void shmedia_free_io(struct resource *res) static __init_refok void *sh64_get_page(void) { - extern int after_bootmem; void *page; - if (after_bootmem) { - page = (void *)get_zeroed_page(GFP_ATOMIC); - } else { + if (after_bootmem) + page = (void *)get_zeroed_page(GFP_KERNEL); + else page = alloc_bootmem_pages(PAGE_SIZE); - } if (!page || ((unsigned long)page & ~PAGE_MASK)) panic("sh64_get_page: Out of memory already?\n"); @@ -264,17 +186,20 @@ static __init_refok void *sh64_get_page(void) return page; } -static void shmedia_mapioaddr(unsigned long pa, unsigned long va) +static void shmedia_mapioaddr(unsigned long pa, unsigned long va, + unsigned long flags) { pgd_t *pgdp; pud_t *pudp; pmd_t *pmdp; pte_t *ptep, pte; pgprot_t prot; - unsigned long flags = 1; /* 1 = CB0-1 device */ pr_debug("shmedia_mapiopage pa %08lx va %08lx\n", pa, va); + if (!flags) + flags = 1; /* 1 = CB0-1 device */ + pgdp = pgd_offset_k(va); if (pgd_none(*pgdp) || !pgd_present(*pgdp)) { pudp = (pud_t *)sh64_get_page(); @@ -288,7 +213,7 @@ static void shmedia_mapioaddr(unsigned long pa, unsigned long va) } pmdp = pmd_offset(pudp, va); - if (pmd_none(*pmdp) || !pmd_present(*pmdp) ) { + if (pmd_none(*pmdp) || !pmd_present(*pmdp)) { ptep = (pte_t *)sh64_get_page(); set_pmd(pmdp, __pmd((unsigned long)ptep + _PAGE_TABLE)); } @@ -336,17 +261,19 @@ static void shmedia_unmapioaddr(unsigned long vaddr) pte_clear(&init_mm, vaddr, ptep); } -unsigned long onchip_remap(unsigned long phys, unsigned long size, const char *name) +void __iomem *__ioremap(unsigned long offset, unsigned long size, + unsigned long flags) { - if (size < PAGE_SIZE) - size = PAGE_SIZE; + char name[14]; - return shmedia_alloc_io(phys, size, name); + sprintf(name, "phys_%08x", (u32)offset); + return shmedia_alloc_io(offset, size, name, flags); } -EXPORT_SYMBOL(onchip_remap); +EXPORT_SYMBOL(__ioremap); -void onchip_unmap(unsigned long vaddr) +void __iounmap(void __iomem *virtual) { + unsigned long vaddr = (unsigned long)virtual & PAGE_MASK; struct resource *res; unsigned int psz; @@ -357,10 +284,7 @@ void onchip_unmap(unsigned long vaddr) return; } - psz = (res->end - res->start + (PAGE_SIZE - 1)) / PAGE_SIZE; - - printk(KERN_DEBUG "unmapioaddr: %6s [%2d page%s] freed\n", - res->name, psz, psz == 1 ? " " : "s"); + psz = (res->end - res->start + (PAGE_SIZE - 1)) / PAGE_SIZE; shmedia_free_io(res); @@ -371,9 +295,8 @@ void onchip_unmap(unsigned long vaddr) kfree(res); } } -EXPORT_SYMBOL(onchip_unmap); +EXPORT_SYMBOL(__iounmap); -#ifdef CONFIG_PROC_FS static int ioremap_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, void *data) @@ -385,7 +308,10 @@ ioremap_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, for (r = ((struct resource *)data)->child; r != NULL; r = r->sibling) { if (p + 32 >= e) /* Better than nothing */ break; - if ((nm = r->name) == 0) nm = "???"; + nm = r->name; + if (nm == NULL) + nm = "???"; + p += sprintf(p, "%08lx-%08lx: %s\n", (unsigned long)r->start, (unsigned long)r->end, nm); @@ -393,14 +319,11 @@ ioremap_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, return p-buf; } -#endif /* CONFIG_PROC_FS */ static int __init register_proc_onchip(void) { -#ifdef CONFIG_PROC_FS - create_proc_read_entry("io_map",0,0, ioremap_proc_info, &shmedia_iomap); -#endif + create_proc_read_entry("io_map", 0, 0, ioremap_proc_info, + &shmedia_iomap); return 0; } - -__initcall(register_proc_onchip); +late_initcall(register_proc_onchip); |
