Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (51 commits)
  MIPS: BCM63xx: Add integrated ethernet mac support.
  MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs.
  MIPS: BCM63xx: Add Broadcom 63xx CPU definitions.
  MIPS: Octeon:  Move some platform device registration to its own file.
  MIPS: Don't corrupt page tables on vmalloc fault.
  MIPS: Shrink the size of tlb handler
  MIPS: Alchemy: override loops_per_jiffy detection
  MIPS: hw_random: Add hardware RNG for Octeon SOCs.
  MIPS: Octeon:  Add hardware RNG platform device.
  MIPS: Remove useless zero initializations.
  MIPS: Alchemy: get rid of allow_au1k_wait
  MIPS: Octeon: Set kernel_uses_llsc to false on non-SMP builds.
  MIPS: Allow kernel use of LL/SC to be separate from the presence of LL/SC.
  MIPS: Get rid of CONFIG_CPU_HAS_LLSC
  MIPS: Malta: Remove pointless use use of CONFIG_CPU_HAS_LLSC
  MIPS: Rewrite clearing of ll_bit on context switch in C
  MIPS: Rewrite sysmips(MIPS_ATOMIC_SET, ...) in C with inline assembler
  MIPS: Consolidate all CONFIG_CPU_HAS_LLSC use in a single C file.
  MIPS: Clean up linker script using new linker script macros.
  MIPS: Use PAGE_SIZE in assembly instead of _PAGE_SIZE.
  ...

1 files changed, 164 insertions, 0 deletions

diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
new file mode 100644
index 00000000000..be711dd2d91
--- /dev/null
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -0,0 +1,164 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2004-2009 Cavium Networks
+ * Copyright (C) 2008 Wind River Systems
+ */
+
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/octeon/octeon.h>
+#include <asm/octeon/cvmx-rnm-defs.h>
+
+static struct octeon_cf_data octeon_cf_data;
+
+static int __init octeon_cf_device_init(void)
+{
+	union cvmx_mio_boot_reg_cfgx mio_boot_reg_cfg;
+	unsigned long base_ptr, region_base, region_size;
+	struct platform_device *pd;
+	struct resource cf_resources[3];
+	unsigned int num_resources;
+	int i;
+	int ret = 0;
+
+	/* Setup octeon-cf platform device if present. */
+	base_ptr = 0;
+	if (octeon_bootinfo->major_version == 1
+		&& octeon_bootinfo->minor_version >= 1) {
+		if (octeon_bootinfo->compact_flash_common_base_addr)
+			base_ptr =
+				octeon_bootinfo->compact_flash_common_base_addr;
+	} else {
+		base_ptr = 0x1d000800;
+	}
+
+	if (!base_ptr)
+		return ret;
+
+	/* Find CS0 region. */
+	for (i = 0; i < 8; i++) {
+		mio_boot_reg_cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(i));
+		region_base = mio_boot_reg_cfg.s.base << 16;
+		region_size = (mio_boot_reg_cfg.s.size + 1) << 16;
+		if (mio_boot_reg_cfg.s.en && base_ptr >= region_base
+		    && base_ptr < region_base + region_size)
+			break;
+	}
+	if (i >= 7) {
+		/* i and i + 1 are CS0 and CS1, both must be less than 8. */
+		goto out;
+	}
+	octeon_cf_data.base_region = i;
+	octeon_cf_data.is16bit = mio_boot_reg_cfg.s.width;
+	octeon_cf_data.base_region_bias = base_ptr - region_base;
+	memset(cf_resources, 0, sizeof(cf_resources));
+	num_resources = 0;
+	cf_resources[num_resources].flags	= IORESOURCE_MEM;
+	cf_resources[num_resources].start	= region_base;
+	cf_resources[num_resources].end	= region_base + region_size - 1;
+	num_resources++;
+
+
+	if (!(base_ptr & 0xfffful)) {
+		/*
+		 * Boot loader signals availability of DMA (true_ide
+		 * mode) by setting low order bits of base_ptr to
+		 * zero.
+		 */
+
+		/* Asume that CS1 immediately follows. */
+		mio_boot_reg_cfg.u64 =
+			cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(i + 1));
+		region_base = mio_boot_reg_cfg.s.base << 16;
+		region_size = (mio_boot_reg_cfg.s.size + 1) << 16;
+		if (!mio_boot_reg_cfg.s.en)
+			goto out;
+
+		cf_resources[num_resources].flags	= IORESOURCE_MEM;
+		cf_resources[num_resources].start	= region_base;
+		cf_resources[num_resources].end	= region_base + region_size - 1;
+		num_resources++;
+
+		octeon_cf_data.dma_engine = 0;
+		cf_resources[num_resources].flags	= IORESOURCE_IRQ;
+		cf_resources[num_resources].start	= OCTEON_IRQ_BOOTDMA;
+		cf_resources[num_resources].end	= OCTEON_IRQ_BOOTDMA;
+		num_resources++;
+	} else {
+		octeon_cf_data.dma_engine = -1;
+	}
+
+	pd = platform_device_alloc("pata_octeon_cf", -1);
+	if (!pd) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	pd->dev.platform_data = &octeon_cf_data;
+
+	ret = platform_device_add_resources(pd, cf_resources, num_resources);
+	if (ret)
+		goto fail;
+
+	ret = platform_device_add(pd);
+	if (ret)
+		goto fail;
+
+	return ret;
+fail:
+	platform_device_put(pd);
+out:
+	return ret;
+}
+device_initcall(octeon_cf_device_init);
+
+/* Octeon Random Number Generator.  */
+static int __init octeon_rng_device_init(void)
+{
+	struct platform_device *pd;
+	int ret = 0;
+
+	struct resource rng_resources[] = {
+		{
+			.flags	= IORESOURCE_MEM,
+			.start	= XKPHYS_TO_PHYS(CVMX_RNM_CTL_STATUS),
+			.end	= XKPHYS_TO_PHYS(CVMX_RNM_CTL_STATUS) + 0xf
+		}, {
+			.flags	= IORESOURCE_MEM,
+			.start	= cvmx_build_io_address(8, 0),
+			.end	= cvmx_build_io_address(8, 0) + 0x7
+		}
+	};
+
+	pd = platform_device_alloc("octeon_rng", -1);
+	if (!pd) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	ret = platform_device_add_resources(pd, rng_resources,
+					    ARRAY_SIZE(rng_resources));
+	if (ret)
+		goto fail;
+
+	ret = platform_device_add(pd);
+	if (ret)
+		goto fail;
+
+	return ret;
+fail:
+	platform_device_put(pd);
+
+out:
+	return ret;
+}
+device_initcall(octeon_rng_device_init);
+
+MODULE_AUTHOR("David Daney <ddaney@caviumnetworks.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Platform driver for Octeon SOC");