Esempio n. 1
0
void __init plat_mem_setup(void)
{
	unsigned long fdt_start;

	set_io_port_base(KSEG1);

	/* Get the position of the FDT passed by the bootloader */
	fdt_start = fw_getenvl("fdt_start");
	if (fdt_start)
		__dt_setup_arch((void *)KSEG0ADDR(fdt_start));
	else if (fw_passed_dtb)
		__dt_setup_arch((void *)KSEG0ADDR(fw_passed_dtb));

	if (mips_machtype != ATH79_MACH_GENERIC_OF) {
		ath79_reset_base = ioremap_nocache(AR71XX_RESET_BASE,
						   AR71XX_RESET_SIZE);
		ath79_pll_base = ioremap_nocache(AR71XX_PLL_BASE,
						 AR71XX_PLL_SIZE);
		ath79_detect_sys_type();
		ath79_ddr_ctrl_init();

		detect_memory_region(0, ATH79_MEM_SIZE_MIN, ATH79_MEM_SIZE_MAX);

		/* OF machines should use the reset driver */
		_machine_restart = ath79_restart;
	}

	_machine_halt = ath79_halt;
	pm_power_off = ath79_halt;
}
Esempio n. 2
0
File: prom.c Progetto: 7LK/McWRT
void __init prom_setup_cmdline(void)
{
	char *cp;
	int prom_argc;
	char **prom_argv;
	int i;

	prom_argc = fw_arg0;
	prom_argv = (char **)KSEG0ADDR(fw_arg1);

	cp = &(arcs_cmdline[0]);
	for (i = 1; i < prom_argc; i++) {
		prom_argv[i] = (char *)KSEG0ADDR(prom_argv[i]);

		/* default bootargs has "console=/dev/ttyS0" yet console won't
		 * show up at all if you include the '/dev/' nowadays ... */
		if (match_tag(prom_argv[i], "console=/dev/")) {
			char *ptr = prom_argv[i] + strlen("console=/dev/");

			strcpy(cp, "console=");
			cp += strlen("console=");
			strcpy(cp, ptr);
			cp += strlen(ptr);
			*cp++ = ' ';
			continue;
		}
		strcpy(cp, prom_argv[i]);
		cp += strlen(prom_argv[i]);
		*cp++ = ' ';
	}
	if (prom_argc > 1)
		--cp; /* trailing space */

	*cp = '\0';
}
Esempio n. 3
0
/**
 * frees the "xhci_container_ctx" pointer passed
 *
 * @param ptr	pointer to "xhci_container_ctx" to be freed
 * @return none
 */
static void xhci_free_container_ctx(struct xhci_container_ctx *ctx)
{
	if (ctx) {
		if (ctx->bytes) {
			free(KSEG0ADDR(ctx->bytes));
		}
		free(KSEG0ADDR(ctx));
	}
}
Esempio n. 4
0
/**
 * frees the "segment" pointer passed
 *
 * @param ptr	pointer to "segement" to be freed
 * @return none
 */
static void xhci_segment_free(struct xhci_segment *seg)
{
	if (seg) {
		if (seg->trbs) {
			free(KSEG0ADDR(seg->trbs));
			seg->trbs = NULL;
		}
		free(KSEG0ADDR(seg));
	}
}
Esempio n. 5
0
int sgiwd93_release(struct Scsi_Host *instance)
{
	free_irq(SGI_WD93_0_IRQ, sgiwd93_intr);
	free_page(KSEG0ADDR(hdata->dma_bounce_buffer));
	wd33c93_release();
	if(!sgi_guiness) {
		free_irq(SGI_WD93_1_IRQ, sgiwd93_intr);
		free_page(KSEG0ADDR(hdata1->dma_bounce_buffer));
		wd33c93_release();
	}
	return 1;
}
Esempio n. 6
0
/**
 * frees all the memory allocated
 *
 * @param ptr	pointer to "xhci_ctrl" to be cleaned up
 * @return none
 */
void xhci_cleanup(struct xhci_ctrl *ctrl)
{
	if (ctrl->event_ring)
		xhci_ring_free(ctrl->event_ring);
	if (ctrl->cmd_ring)
		xhci_ring_free(ctrl->cmd_ring);
	if (ctrl)
		xhci_free_virt_devices(ctrl);
	if (ctrl->erst.entries)
		free(KSEG0ADDR(ctrl->erst.entries));
	if (ctrl->dcbaa)
		free(KSEG0ADDR(ctrl->dcbaa));
	memset(ctrl, '\0', sizeof(struct xhci_ctrl));
}
Esempio n. 7
0
static int rc32434_remove(struct platform_device *pdev)
{
	struct korina_device *bif = (struct korina_device *) pdev->dev.platform_data;
	
	if (bif->dev != NULL) {
		struct rc32434_local *lp = (struct rc32434_local *)bif->dev->priv;
		if (lp != NULL) {
			if (lp->eth_regs)
				iounmap((void*)lp->eth_regs);
			if (lp->rx_dma_regs)
				iounmap((void*)lp->rx_dma_regs);
			if (lp->tx_dma_regs)
				iounmap((void*)lp->tx_dma_regs);
			if (lp->td_ring)
				kfree((void*)KSEG0ADDR(lp->td_ring));
			
#ifdef RC32434_PROC_DEBUG
			if (lp->ps) {
				remove_proc_entry(bif->name, proc_net);
			}
#endif
			kfree(lp);
		}
		
		platform_set_drvdata(pdev, NULL);
		unregister_netdev(bif->dev);
		free_netdev(bif->dev);
		kfree(bif->dev);
	}
	return 0;
}
Esempio n. 8
0
/**
 * frees the virtual devices for "xhci_ctrl" pointer passed
 *
 * @param ptr	pointer to "xhci_ctrl" whose virtual devices are to be freed
 * @return none
 */
static void xhci_free_virt_devices(struct xhci_ctrl *ctrl)
{
	int i;
	int slot_id;
	struct xhci_virt_device *virt_dev;

	/*
	 * refactored here to loop through all virt_dev
	 * Slot ID 0 is reserved
	 */
	for (slot_id = 0; slot_id < MAX_HC_SLOTS; slot_id++) {
		virt_dev = ctrl->devs[slot_id];
		if (!virt_dev)
			continue;

		ctrl->dcbaa->dev_context_ptrs[slot_id] = 0;

		for (i = 0; i < 31; ++i) {
			if (virt_dev->eps[i].ring)
				xhci_ring_free(virt_dev->eps[i].ring);
		}

		if (virt_dev->in_ctx)
			xhci_free_container_ctx(virt_dev->in_ctx);
		if (virt_dev->out_ctx)
			xhci_free_container_ctx(virt_dev->out_ctx);

		free(KSEG0ADDR(virt_dev));
		/* make sure we are pointing to NULL */
		ctrl->devs[slot_id] = NULL;
	}
}
Esempio n. 9
0
/*
 * Use the REX prom calls to get hold of the memory bitmap, and thence
 * determine memory size.
 */
static inline void rex_setup_memory_region(void)
{
	int i, bitmap_size;
	unsigned long mem_start = 0, mem_size = 0;
	memmap *bm;

	/* some free 64k */
	bm = (memmap *)KSEG0ADDR(0x28000);

	bitmap_size = rex_getbitmap(bm);

	for (i = 0; i < bitmap_size; i++) {
		/* FIXME: very simplistically only add full sets of pages */
		if (bm->bitmap[i] == 0xff)
			mem_size += (8 * bm->pagesize);
		else if (!mem_size)
			mem_start += (8 * bm->pagesize);
		else {
			add_memory_region(mem_start, mem_size, BOOT_MEM_RAM);
			mem_start += mem_size + (8 * bm->pagesize);
			mem_size = 0;
		}
	}
	if (mem_size)
		add_memory_region(mem_start, mem_size, BOOT_MEM_RAM);
}
Esempio n. 10
0
File: setup.c Progetto: 020gzh/linux
void __init plat_mem_setup(void)
{
	unsigned long fdt_start;

	set_io_port_base(KSEG1);

	/* Get the position of the FDT passed by the bootloader */
	fdt_start = fw_getenvl("fdt_start");
	if (fdt_start)
		__dt_setup_arch((void *)KSEG0ADDR(fdt_start));
#ifdef CONFIG_BUILTIN_DTB
	else
		__dt_setup_arch(__dtb_start);
#endif

	ath79_reset_base = ioremap_nocache(AR71XX_RESET_BASE,
					   AR71XX_RESET_SIZE);
	ath79_pll_base = ioremap_nocache(AR71XX_PLL_BASE,
					 AR71XX_PLL_SIZE);
	ath79_detect_sys_type();
	ath79_ddr_ctrl_init();

	if (mips_machtype != ATH79_MACH_GENERIC_OF)
		detect_memory_region(0, ATH79_MEM_SIZE_MIN, ATH79_MEM_SIZE_MAX);

	_machine_restart = ath79_restart;
	_machine_halt = ath79_halt;
	pm_power_off = ath79_halt;
}
Esempio n. 11
0
static void acacia_cleanup_module(void)
{
    int i;

    for (i = 0; acacia_iflist[i].iobase; i++) {
        struct acacia_if_t * bif = &acacia_iflist[i];
        if (bif->dev != NULL) {
            struct acacia_local *lp =
                (struct acacia_local *)bif->dev->priv;
            if (lp != NULL) {
                if (lp->eth_regs)
                    iounmap(lp->eth_regs);
                if (lp->rx_dma_regs)
                    iounmap(lp->rx_dma_regs);
                if (lp->tx_dma_regs)
                    iounmap(lp->tx_dma_regs);
                if (lp->td_ring)
                    kfree((void*)KSEG0ADDR(lp->td_ring));
                if (lp->rba)
                    kfree(lp->rba);
#ifdef ACACIA_PROC_DEBUG
                if (lp->ps)
                    remove_proc_entry("net/rc32355",
                                      NULL);
#endif
                kfree(lp);
            }

            unregister_netdev(bif->dev);
            kfree(bif->dev);
            release_region(bif->iobase, 0x24C);
        }
    }
}
Esempio n. 12
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static void ar2313_free_descriptors(struct net_device *dev)
{
    struct ar2313_private *sp = dev->priv;
    if (sp->rx_ring != NULL) {
        kfree((void *) KSEG0ADDR(sp->rx_ring));
        sp->rx_ring = NULL;
        sp->tx_ring = NULL;
    }
}
Esempio n. 13
0
void *
osl_cached(void *va)
{
#ifdef mips
	return ((void*)KSEG0ADDR(va));
#else
	return ((void*)va);
#endif /* mips */
}
Esempio n. 14
0
void pci_free_consistent(struct pci_dev *hwdev, size_t size,
			 void *vaddr, dma_addr_t dma_handle)
{
	unsigned long addr = (unsigned long) vaddr;

#ifdef CONFIG_NONCOHERENT_IO
	addr = KSEG0ADDR(addr);
#endif
	free_pages(addr, get_order(size));
}
Esempio n. 15
0
static inline void *to_ram_addr(void *addr)
{
	u32 base;

	base = KSEG0ADDR(RALINK_SOC_SDRAM_BASE);
	if (((u32) addr > base) &&
	    ((u32) addr < (base + RALINK_SOC_MEM_SIZE_MAX)))
		return addr;

	base = KSEG1ADDR(RALINK_SOC_SDRAM_BASE);
	if (((u32) addr > base) &&
	    ((u32) addr < (base + RALINK_SOC_MEM_SIZE_MAX)))
		return addr;

	/* some U-Boot variants uses physical addresses */
	base = RALINK_SOC_SDRAM_BASE;
	if (((u32) addr > base) &&
	    ((u32) addr < (base + RALINK_SOC_MEM_SIZE_MAX)))
		return (void *)KSEG0ADDR(addr);

	return NULL;
}
Esempio n. 16
0
static int bcm47xxsflash_read(struct mtd_info *mtd, loff_t from, size_t len,
			      size_t *retlen, u_char *buf)
{
	struct bcma_sflash *sflash = mtd->priv;

	/* Check address range */
	if ((from + len) > mtd->size)
		return -EINVAL;

	memcpy_fromio(buf, (void __iomem *)KSEG0ADDR(sflash->window + from),
		      len);

	return len;
}
Esempio n. 17
0
/*
  DMA memory allocation, derived from pci_alloc_consistent.
  However, the Au1000 data cache is coherent (when programmed
  so), therefore we return KSEG0 address, not KSEG1.
*/
static void *dma_alloc(size_t size, dma_addr_t * dma_handle)
{
	void *ret;
	int gfp = GFP_ATOMIC | GFP_DMA;

	ret = (void *) __get_free_pages(gfp, get_order(size));

	if (ret != NULL) {
		memset(ret, 0, size);
		*dma_handle = virt_to_bus(ret);
		ret = (void *)KSEG0ADDR(ret);
	}
	return ret;
}
Esempio n. 18
0
/**
 * frees the "ring" pointer passed
 *
 * @param ptr	pointer to "ring" to be freed
 * @return none
 */
static void xhci_ring_free(struct xhci_ring *ring)
{
	struct xhci_segment *seg;
	struct xhci_segment *first_seg;

	BUG_ON(!ring);

	first_seg = ring->first_seg;
	seg = first_seg->next;
	while (seg != first_seg) {
		struct xhci_segment *next = seg->next;
		xhci_segment_free(seg);
		seg = next;
	}
	xhci_segment_free(first_seg);

	free(KSEG0ADDR(ring));
}
Esempio n. 19
0
/*!
 \brief This function is called to free allocated buffer.
 \param vaddr the uncached pointer of the buffer
 */
void ifxusb_free_buf(void *vaddr)
{
	uint32_t totalsize,page;
	uint32_t *cached,*uncached;

	if(vaddr != NULL)
	{
		uncached=vaddr;
		uncached-=3;
		totalsize=*(uncached+0);
		page=*(uncached+1);
		cached=(uint32_t *)(*(uncached+2));
		if(totalsize && page==get_order(totalsize) && cached==(uint32_t *)(KSEG0ADDR(uncached)))
		{
			free_pages((unsigned long)cached, page);
			return;
		}
		// the memory is not allocated by ifxusb_alloc_buf. Allowed but must be careful.
		return;
	}
}
Esempio n. 20
0
struct prom_pmemblock * __init prom_getmdesc(void)
{
	char *memsize_str;
	unsigned int memsize;

	memsize_str = prom_getenv("memsize");
	if (!memsize_str) {
#ifdef CONFIG_MIPS_AVALANCHE_SOC
		prom_printf("memsize not set in boot prom, set to default (64Mb)\n");
		memsize = 0x04000000;
#else
		prom_printf("memsize not set in boot prom, set to default (32Mb)\n");
		memsize = 0x02000000;
#endif
	} else {
#ifdef DEBUG
		prom_printf("prom_memsize = %s\n", memsize_str);
#endif
		memsize = simple_strtol(memsize_str, NULL, 0);
	}

	memset(mdesc, 0, sizeof(mdesc));

#if defined(CONFIG_MIPS_AVALANCHE_SOC)

#define PREV_MDESC(x)  ((x) - 1)
    {
        struct prom_pmemblock *p_mdesc = &mdesc[0];
	p_mdesc->type = yamon_dontuse;	
	p_mdesc->base = 0x00000000;
	p_mdesc->size = AVALANCHE_SDRAM_BASE;

	p_mdesc++;
	p_mdesc->type = yamon_prom;
	p_mdesc->base = PREV_MDESC(p_mdesc)->base + PREV_MDESC(p_mdesc)->size;
	p_mdesc->size = PAGE_SIZE;

	p_mdesc++;
	p_mdesc->type = yamon_prom;    
	p_mdesc->base = PREV_MDESC(p_mdesc)->base + PREV_MDESC(p_mdesc)->size;
	p_mdesc->size = (CONFIG_MIPS_AVALANCHE_LOAD_ADDRESS - KSEG0ADDR(AVALANCHE_SDRAM_BASE)) - PAGE_SIZE;

	p_mdesc++;
	p_mdesc->type = yamon_dontuse;
	p_mdesc->base = PREV_MDESC(p_mdesc)->base + PREV_MDESC(p_mdesc)->size;
	p_mdesc->size = CPHYSADDR(PFN_ALIGN(&_end)) - p_mdesc->base;
	p_mdesc++;
	p_mdesc->type = yamon_free;
	p_mdesc->base = PREV_MDESC(p_mdesc)->base + PREV_MDESC(p_mdesc)->size;
	p_mdesc->size = memsize - (CPHYSADDR(PFN_ALIGN(&_end)) - AVALANCHE_SDRAM_BASE);
    }
#else 
	mdesc[0].type = yamon_dontuse;
	mdesc[0].base = 0x00000000;
	mdesc[0].size = 0x00001000;

	mdesc[1].type = yamon_prom;
	mdesc[1].base = 0x00001000;
	mdesc[1].size = 0x000ef000;

#ifdef CONFIG_MIPS_MALTA
	/*
	 * The area 0x000f0000-0x000fffff is allocated for BIOS memory by the
	 * south bridge and PCI access always forwarded to the ISA Bus and
	 * BIOSCS# is always generated.
	 * This mean that this area can't be used as DMA memory for PCI
	 * devices.
	 */
	mdesc[2].type = yamon_dontuse;
	mdesc[2].base = 0x000f0000;
	mdesc[2].size = 0x00010000;
#else
	mdesc[2].type = yamon_prom;
	mdesc[2].base = 0x000f0000;
	mdesc[2].size = 0x00010000;
#endif

	mdesc[3].type = yamon_dontuse;
	mdesc[3].base = 0x00100000;
	mdesc[3].size = CPHYSADDR(PFN_ALIGN(&_end)) - mdesc[3].base;

	mdesc[4].type = yamon_free;
	mdesc[4].base = CPHYSADDR(PFN_ALIGN(&_end));
	mdesc[4].size = memsize - mdesc[4].base;
#endif /* CONFIG_MIPS_AVALANCHE_SOC */	

	return &mdesc[0];
}
Esempio n. 21
0
static void dma_free(void *vaddr, size_t size)
{
	vaddr = (void *)KSEG0ADDR(vaddr);
	free_pages((unsigned long) vaddr, get_order(size));
}
Esempio n. 22
0
ulong* get_reserved_buffer(void) {return KSEG0ADDR(buffer_ptr);}
Esempio n. 23
0
File: prom.c Progetto: janfj/dd-wrt
void __init
prom_init(void)
{
    unsigned long extmem = 0, off, data;
    static unsigned long mem;
    unsigned long off1, data1;
    struct nvram_header *header;

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)
    /* These are not really being used anywhere - LR */
    mips_machgroup = MACH_GROUP_BRCM;
    mips_machtype = MACH_BCM947XX;
#endif

    off = (unsigned long)prom_init;
    data = *(unsigned long *)prom_init;
    off1 = off + 4;
    data1 = *(unsigned long *)off1;

    /* Figure out memory size by finding aliases */
    for (mem = (1 MB); mem < (128 MB); mem <<= 1) {
        if ((*(unsigned long *)(off + mem) == data) &&
                (*(unsigned long *)(off1 + mem) == data1))
            break;
    }
    detectmem = mem;
#if 0// defined(CONFIG_HIGHMEM) && !defined(CONFIG_BCM80211AC)
    if (mem == 128 MB) {

        early_tlb_init();
        /* Add one temporary TLB entries to map SDRAM Region 2.
        *      Physical        Virtual
        *      0x80000000      0xc0000000      (1st: 256MB)
        *      0x90000000      0xd0000000      (2nd: 256MB)
        */
        add_tmptlb_entry(ENTRYLO(SI_SDRAM_R2),
                         ENTRYLO(SI_SDRAM_R2 + (256 MB)),
                         EXTVBASE, PM_256M);

        off = EXTVBASE + __pa(off);
        for (extmem = (128 MB); extmem < (512 MB); extmem <<= 1) {
            if (*(unsigned long *)(off + extmem) == data)
                break;
        }

        extmem -= mem;
        /* Keep tlb entries back in consistent state */
        early_tlb_init();
    }
#endif  /* CONFIG_HIGHMEM */
    /* Ignoring the last page when ddr size is 128M. Cached
     * accesses to last page is causing the processor to prefetch
     * using address above 128M stepping out of the ddr address
     * space.
     */
    if (MIPS74K(current_cpu_data.processor_id) && (mem == (128 MB)))
        mem -= 0x1000;

    /* CFE could have loaded nvram during netboot
     * to top 32KB of RAM, Just check for nvram signature
     * and copy it to nvram space embedded in linux
     * image for later use by nvram driver.
     */
    header = (struct nvram_header *)(KSEG0ADDR(mem - NVRAM_SPACE));
    if (ltoh32(header->magic) == NVRAM_MAGIC) {
        uint32 *src = (uint32 *)header;
        uint32 *dst = (uint32 *)ram_nvram_buf;
        uint32 i;

        printk("Copying NVRAM bytes: %d from: 0x%p To: 0x%p\n", ltoh32(header->len),
               src, dst);
        for (i = 0; i < ltoh32(header->len) && i < NVRAM_SPACE; i += 4)
            *dst++ = ltoh32(*src++);
    }

    add_memory_region(SI_SDRAM_BASE, mem, BOOT_MEM_RAM);

#if 0// defined(CONFIG_HIGHMEM) && !defined(CONFIG_BCM80211AC)
    if (extmem) {
        /* We should deduct 0x1000 from the second memory
         * region, because of the fact that processor does prefetch.
         * Now that we are deducting a page from second memory
         * region, we could add the earlier deducted 4KB (from first bank)
         * to the second region (the fact that 0x80000000 -> 0x88000000
         * shadows 0x0 -> 0x8000000)
         */
        if (MIPS74K(current_cpu_data.processor_id) && (mem == (128 MB)))
            extmem -= 0x1000;
        add_memory_region(SI_SDRAM_R2 + (128 MB) - 0x1000, extmem, BOOT_MEM_RAM);
    }
#endif  /* CONFIG_HIGHMEM */
}
Esempio n. 24
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static inline unsigned long kseg1_to_phys(volatile void * kseg1_addr)
{
    return virt_to_phys((void*)KSEG0ADDR(kseg1_addr));
}