platforms += ar7
platforms += ath25
platforms += ath79
-platforms += bcm3384
platforms += bcm47xx
platforms += bcm63xx
+platforms += bmips
platforms += cavium-octeon
platforms += cobalt
platforms += dec
help
Support for the Atheros AR71XX/AR724X/AR913X SoCs.
-config BCM3384
- bool "Broadcom BCM3384 based boards"
+config BMIPS_GENERIC
+ bool "Broadcom Generic BMIPS kernel"
select BOOT_RAW
select NO_EXCEPT_FILL
select USE_OF
select USB_OHCI_BIG_ENDIAN_DESC
select USB_OHCI_BIG_ENDIAN_MMIO
help
- Support for BCM3384 based boards. BCM3384/BCM33843 is a cable modem
- chipset with a Linux application processor that is often used to
- provide Samba services, a CUPS print server, and/or advanced routing
- features.
+ Build a generic DT-based kernel image that boots on select
+ BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
+ box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
+ must be set appropriately for your board.
config BCM47XX
bool "Broadcom BCM47XX based boards"
+++ /dev/null
-obj-y += setup.o irq.o dma.o
+++ /dev/null
-#
-# Broadcom BCM3384 boards
-#
-platform-$(CONFIG_BCM3384) += bcm3384/
-cflags-$(CONFIG_BCM3384) += \
- -I$(srctree)/arch/mips/include/asm/mach-bcm3384/
-load-$(CONFIG_BCM3384) := 0xffffffff80010000
+++ /dev/null
-/*
- * 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) 2014 Kevin Cernekee <cernekee@gmail.com>
- */
-
-#include <linux/device.h>
-#include <linux/dma-direction.h>
-#include <linux/dma-mapping.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/of.h>
-#include <linux/pci.h>
-#include <linux/types.h>
-#include <dma-coherence.h>
-
-/*
- * BCM3384 has configurable address translation windows which allow the
- * peripherals' DMA addresses to be different from the Zephyr-visible
- * physical addresses. e.g. usb_dma_addr = zephyr_pa ^ 0x08000000
- *
- * If our DT "memory" node has a "dma-xor-mask" property we will enable this
- * translation using the provided offset.
- */
-static u32 bcm3384_dma_xor_mask;
-static u32 bcm3384_dma_xor_limit = 0xffffffff;
-
-/*
- * PCI collapses the memory hole at 0x10000000 - 0x1fffffff.
- * On systems with a dma-xor-mask, this range is guaranteed to live above
- * the dma-xor-limit.
- */
-#define BCM3384_MEM_HOLE_PA 0x10000000
-#define BCM3384_MEM_HOLE_SIZE 0x10000000
-
-static dma_addr_t bcm3384_phys_to_dma(struct device *dev, phys_addr_t pa)
-{
- if (dev && dev_is_pci(dev) &&
- pa >= (BCM3384_MEM_HOLE_PA + BCM3384_MEM_HOLE_SIZE))
- return pa - BCM3384_MEM_HOLE_SIZE;
- if (pa <= bcm3384_dma_xor_limit)
- return pa ^ bcm3384_dma_xor_mask;
- return pa;
-}
-
-dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
-{
- return bcm3384_phys_to_dma(dev, virt_to_phys(addr));
-}
-
-dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
-{
- return bcm3384_phys_to_dma(dev, page_to_phys(page));
-}
-
-unsigned long plat_dma_addr_to_phys(struct device *dev, dma_addr_t dma_addr)
-{
- if (dev && dev_is_pci(dev) &&
- dma_addr >= BCM3384_MEM_HOLE_PA)
- return dma_addr + BCM3384_MEM_HOLE_SIZE;
- if ((dma_addr ^ bcm3384_dma_xor_mask) <= bcm3384_dma_xor_limit)
- return dma_addr ^ bcm3384_dma_xor_mask;
- return dma_addr;
-}
-
-static int __init bcm3384_init_dma_xor(void)
-{
- struct device_node *np = of_find_node_by_type(NULL, "memory");
-
- if (!np)
- return 0;
-
- of_property_read_u32(np, "dma-xor-mask", &bcm3384_dma_xor_mask);
- of_property_read_u32(np, "dma-xor-limit", &bcm3384_dma_xor_limit);
-
- of_node_put(np);
- return 0;
-}
-arch_initcall(bcm3384_init_dma_xor);
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Partially based on arch/mips/ralink/irq.c
- *
- * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
- * Copyright (C) 2014 Kevin Cernekee <cernekee@gmail.com>
- */
-
-#include <linux/io.h>
-#include <linux/bitops.h>
-#include <linux/of_platform.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/irqdomain.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-
-#include <asm/bmips.h>
-#include <asm/irq_cpu.h>
-#include <asm/mipsregs.h>
-
-/* INTC register offsets */
-#define INTC_REG_ENABLE 0x00
-#define INTC_REG_STATUS 0x04
-
-#define MAX_WORDS 2
-#define IRQS_PER_WORD 32
-
-struct bcm3384_intc {
- int n_words;
- void __iomem *reg[MAX_WORDS];
- u32 enable[MAX_WORDS];
- spinlock_t lock;
-};
-
-static void bcm3384_intc_irq_unmask(struct irq_data *d)
-{
- struct bcm3384_intc *priv = d->domain->host_data;
- unsigned long flags;
- int idx = d->hwirq / IRQS_PER_WORD;
- int bit = d->hwirq % IRQS_PER_WORD;
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->enable[idx] |= BIT(bit);
- __raw_writel(priv->enable[idx], priv->reg[idx] + INTC_REG_ENABLE);
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-static void bcm3384_intc_irq_mask(struct irq_data *d)
-{
- struct bcm3384_intc *priv = d->domain->host_data;
- unsigned long flags;
- int idx = d->hwirq / IRQS_PER_WORD;
- int bit = d->hwirq % IRQS_PER_WORD;
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->enable[idx] &= ~BIT(bit);
- __raw_writel(priv->enable[idx], priv->reg[idx] + INTC_REG_ENABLE);
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-static struct irq_chip bcm3384_intc_irq_chip = {
- .name = "INTC",
- .irq_unmask = bcm3384_intc_irq_unmask,
- .irq_mask = bcm3384_intc_irq_mask,
- .irq_mask_ack = bcm3384_intc_irq_mask,
-};
-
-unsigned int get_c0_compare_int(void)
-{
- return CP0_LEGACY_COMPARE_IRQ;
-}
-
-static void bcm3384_intc_irq_handler(unsigned int irq, struct irq_desc *desc)
-{
- struct irq_domain *domain = irq_get_handler_data(irq);
- struct bcm3384_intc *priv = domain->host_data;
- unsigned long flags;
- unsigned int idx;
-
- for (idx = 0; idx < priv->n_words; idx++) {
- unsigned long pending;
- int hwirq;
-
- spin_lock_irqsave(&priv->lock, flags);
- pending = __raw_readl(priv->reg[idx] + INTC_REG_STATUS) &
- priv->enable[idx];
- spin_unlock_irqrestore(&priv->lock, flags);
-
- for_each_set_bit(hwirq, &pending, IRQS_PER_WORD) {
- generic_handle_irq(irq_find_mapping(domain,
- hwirq + idx * IRQS_PER_WORD));
- }
- }
-}
-
-asmlinkage void plat_irq_dispatch(void)
-{
- unsigned long pending =
- (read_c0_status() & read_c0_cause() & ST0_IM) >> STATUSB_IP0;
- int bit;
-
- for_each_set_bit(bit, &pending, 8)
- do_IRQ(MIPS_CPU_IRQ_BASE + bit);
-}
-
-static int intc_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw)
-{
- irq_set_chip_and_handler(irq, &bcm3384_intc_irq_chip, handle_level_irq);
- return 0;
-}
-
-static const struct irq_domain_ops irq_domain_ops = {
- .xlate = irq_domain_xlate_onecell,
- .map = intc_map,
-};
-
-static int __init ioremap_one_pair(struct bcm3384_intc *priv,
- struct device_node *node,
- int idx)
-{
- struct resource res;
-
- if (of_address_to_resource(node, idx, &res))
- return 0;
-
- if (request_mem_region(res.start, resource_size(&res),
- res.name) < 0)
- pr_err("Failed to request INTC register region\n");
-
- priv->reg[idx] = ioremap_nocache(res.start, resource_size(&res));
- if (!priv->reg[idx])
- panic("Failed to ioremap INTC register range");
-
- /* start up with everything masked before we hook the parent IRQ */
- __raw_writel(0, priv->reg[idx] + INTC_REG_ENABLE);
- priv->enable[idx] = 0;
-
- return IRQS_PER_WORD;
-}
-
-static int __init intc_of_init(struct device_node *node,
- struct device_node *parent)
-{
- struct irq_domain *domain;
- unsigned int parent_irq, n_irqs = 0;
- struct bcm3384_intc *priv;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- panic("Failed to allocate bcm3384_intc struct");
-
- spin_lock_init(&priv->lock);
-
- parent_irq = irq_of_parse_and_map(node, 0);
- if (!parent_irq)
- panic("Failed to get INTC IRQ");
-
- n_irqs += ioremap_one_pair(priv, node, 0);
- n_irqs += ioremap_one_pair(priv, node, 1);
-
- if (!n_irqs)
- panic("Failed to map INTC registers");
-
- priv->n_words = n_irqs / IRQS_PER_WORD;
- domain = irq_domain_add_linear(node, n_irqs, &irq_domain_ops, priv);
- if (!domain)
- panic("Failed to add irqdomain");
-
- irq_set_chained_handler(parent_irq, bcm3384_intc_irq_handler);
- irq_set_handler_data(parent_irq, domain);
-
- return 0;
-}
-
-static struct of_device_id of_irq_ids[] __initdata = {
- { .compatible = "mti,cpu-interrupt-controller",
- .data = mips_cpu_irq_of_init },
- { .compatible = "brcm,bcm3384-intc",
- .data = intc_of_init },
- {},
-};
-
-void __init arch_init_irq(void)
-{
- bmips_tp1_irqs = 0;
- of_irq_init(of_irq_ids);
-}
+++ /dev/null
-/*
- * 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) 2008 Maxime Bizon <mbizon@freebox.fr>
- * Copyright (C) 2014 Kevin Cernekee <cernekee@gmail.com>
- */
-
-#include <linux/init.h>
-#include <linux/bootmem.h>
-#include <linux/clk-provider.h>
-#include <linux/ioport.h>
-#include <linux/of.h>
-#include <linux/of_fdt.h>
-#include <linux/of_platform.h>
-#include <linux/smp.h>
-#include <asm/addrspace.h>
-#include <asm/bmips.h>
-#include <asm/bootinfo.h>
-#include <asm/prom.h>
-#include <asm/smp-ops.h>
-#include <asm/time.h>
-
-void __init prom_init(void)
-{
- register_bmips_smp_ops();
-}
-
-void __init prom_free_prom_memory(void)
-{
-}
-
-const char *get_system_type(void)
-{
- return "BCM3384";
-}
-
-void __init plat_time_init(void)
-{
- struct device_node *np;
- u32 freq;
-
- np = of_find_node_by_name(NULL, "cpus");
- if (!np)
- panic("missing 'cpus' DT node");
- if (of_property_read_u32(np, "mips-hpt-frequency", &freq) < 0)
- panic("missing 'mips-hpt-frequency' property");
- of_node_put(np);
-
- mips_hpt_frequency = freq;
-}
-
-void __init plat_mem_setup(void)
-{
- void *dtb = __dtb_start;
-
- set_io_port_base(0);
- ioport_resource.start = 0;
- ioport_resource.end = ~0;
-
- /* intended to somewhat resemble ARM; see Documentation/arm/Booting */
- if (fw_arg0 == 0 && fw_arg1 == 0xffffffff)
- dtb = phys_to_virt(fw_arg2);
-
- __dt_setup_arch(dtb);
-
- strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
-}
-
-void __init device_tree_init(void)
-{
- struct device_node *np;
-
- unflatten_and_copy_device_tree();
-
- /* Disable SMP boot unless both CPUs are listed in DT and !disabled */
- np = of_find_node_by_name(NULL, "cpus");
- if (np && of_get_available_child_count(np) <= 1)
- bmips_smp_enabled = 0;
- of_node_put(np);
-}
-
-int __init plat_of_setup(void)
-{
- return __dt_register_buses("brcm,bcm3384", "simple-bus");
-}
-
-arch_initcall(plat_of_setup);
-
-static int __init plat_dev_init(void)
-{
- of_clk_init(NULL);
- return 0;
-}
-
-device_initcall(plat_dev_init);
--- /dev/null
+obj-y += setup.o irq.o dma.o
--- /dev/null
+#
+# Broadcom Generic BMIPS kernel
+#
+platform-$(CONFIG_BMIPS_GENERIC) += bmips/
+cflags-$(CONFIG_BMIPS_GENERIC) += \
+ -I$(srctree)/arch/mips/include/asm/mach-bmips/
+load-$(CONFIG_BMIPS_GENERIC) := 0xffffffff80010000
--- /dev/null
+/*
+ * 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) 2014 Kevin Cernekee <cernekee@gmail.com>
+ */
+
+#include <linux/device.h>
+#include <linux/dma-direction.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/of.h>
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <dma-coherence.h>
+
+/*
+ * BCM3384 has configurable address translation windows which allow the
+ * peripherals' DMA addresses to be different from the Zephyr-visible
+ * physical addresses. e.g. usb_dma_addr = zephyr_pa ^ 0x08000000
+ *
+ * If our DT "memory" node has a "dma-xor-mask" property we will enable this
+ * translation using the provided offset.
+ */
+static u32 bcm3384_dma_xor_mask;
+static u32 bcm3384_dma_xor_limit = 0xffffffff;
+
+/*
+ * PCI collapses the memory hole at 0x10000000 - 0x1fffffff.
+ * On systems with a dma-xor-mask, this range is guaranteed to live above
+ * the dma-xor-limit.
+ */
+#define BCM3384_MEM_HOLE_PA 0x10000000
+#define BCM3384_MEM_HOLE_SIZE 0x10000000
+
+static dma_addr_t bcm3384_phys_to_dma(struct device *dev, phys_addr_t pa)
+{
+ if (dev && dev_is_pci(dev) &&
+ pa >= (BCM3384_MEM_HOLE_PA + BCM3384_MEM_HOLE_SIZE))
+ return pa - BCM3384_MEM_HOLE_SIZE;
+ if (pa <= bcm3384_dma_xor_limit)
+ return pa ^ bcm3384_dma_xor_mask;
+ return pa;
+}
+
+dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
+{
+ return bcm3384_phys_to_dma(dev, virt_to_phys(addr));
+}
+
+dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
+{
+ return bcm3384_phys_to_dma(dev, page_to_phys(page));
+}
+
+unsigned long plat_dma_addr_to_phys(struct device *dev, dma_addr_t dma_addr)
+{
+ if (dev && dev_is_pci(dev) &&
+ dma_addr >= BCM3384_MEM_HOLE_PA)
+ return dma_addr + BCM3384_MEM_HOLE_SIZE;
+ if ((dma_addr ^ bcm3384_dma_xor_mask) <= bcm3384_dma_xor_limit)
+ return dma_addr ^ bcm3384_dma_xor_mask;
+ return dma_addr;
+}
+
+static int __init bcm3384_init_dma_xor(void)
+{
+ struct device_node *np = of_find_node_by_type(NULL, "memory");
+
+ if (!np)
+ return 0;
+
+ of_property_read_u32(np, "dma-xor-mask", &bcm3384_dma_xor_mask);
+ of_property_read_u32(np, "dma-xor-limit", &bcm3384_dma_xor_limit);
+
+ of_node_put(np);
+ return 0;
+}
+arch_initcall(bcm3384_init_dma_xor);
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Partially based on arch/mips/ralink/irq.c
+ *
+ * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
+ * Copyright (C) 2014 Kevin Cernekee <cernekee@gmail.com>
+ */
+
+#include <linux/io.h>
+#include <linux/bitops.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/irqdomain.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+
+#include <asm/bmips.h>
+#include <asm/irq_cpu.h>
+#include <asm/mipsregs.h>
+
+/* INTC register offsets */
+#define INTC_REG_ENABLE 0x00
+#define INTC_REG_STATUS 0x04
+
+#define MAX_WORDS 2
+#define IRQS_PER_WORD 32
+
+struct bcm3384_intc {
+ int n_words;
+ void __iomem *reg[MAX_WORDS];
+ u32 enable[MAX_WORDS];
+ spinlock_t lock;
+};
+
+static void bcm3384_intc_irq_unmask(struct irq_data *d)
+{
+ struct bcm3384_intc *priv = d->domain->host_data;
+ unsigned long flags;
+ int idx = d->hwirq / IRQS_PER_WORD;
+ int bit = d->hwirq % IRQS_PER_WORD;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->enable[idx] |= BIT(bit);
+ __raw_writel(priv->enable[idx], priv->reg[idx] + INTC_REG_ENABLE);
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static void bcm3384_intc_irq_mask(struct irq_data *d)
+{
+ struct bcm3384_intc *priv = d->domain->host_data;
+ unsigned long flags;
+ int idx = d->hwirq / IRQS_PER_WORD;
+ int bit = d->hwirq % IRQS_PER_WORD;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->enable[idx] &= ~BIT(bit);
+ __raw_writel(priv->enable[idx], priv->reg[idx] + INTC_REG_ENABLE);
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static struct irq_chip bcm3384_intc_irq_chip = {
+ .name = "INTC",
+ .irq_unmask = bcm3384_intc_irq_unmask,
+ .irq_mask = bcm3384_intc_irq_mask,
+ .irq_mask_ack = bcm3384_intc_irq_mask,
+};
+
+unsigned int get_c0_compare_int(void)
+{
+ return CP0_LEGACY_COMPARE_IRQ;
+}
+
+static void bcm3384_intc_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+ struct irq_domain *domain = irq_get_handler_data(irq);
+ struct bcm3384_intc *priv = domain->host_data;
+ unsigned long flags;
+ unsigned int idx;
+
+ for (idx = 0; idx < priv->n_words; idx++) {
+ unsigned long pending;
+ int hwirq;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ pending = __raw_readl(priv->reg[idx] + INTC_REG_STATUS) &
+ priv->enable[idx];
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ for_each_set_bit(hwirq, &pending, IRQS_PER_WORD) {
+ generic_handle_irq(irq_find_mapping(domain,
+ hwirq + idx * IRQS_PER_WORD));
+ }
+ }
+}
+
+asmlinkage void plat_irq_dispatch(void)
+{
+ unsigned long pending =
+ (read_c0_status() & read_c0_cause() & ST0_IM) >> STATUSB_IP0;
+ int bit;
+
+ for_each_set_bit(bit, &pending, 8)
+ do_IRQ(MIPS_CPU_IRQ_BASE + bit);
+}
+
+static int intc_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw)
+{
+ irq_set_chip_and_handler(irq, &bcm3384_intc_irq_chip, handle_level_irq);
+ return 0;
+}
+
+static const struct irq_domain_ops irq_domain_ops = {
+ .xlate = irq_domain_xlate_onecell,
+ .map = intc_map,
+};
+
+static int __init ioremap_one_pair(struct bcm3384_intc *priv,
+ struct device_node *node,
+ int idx)
+{
+ struct resource res;
+
+ if (of_address_to_resource(node, idx, &res))
+ return 0;
+
+ if (request_mem_region(res.start, resource_size(&res),
+ res.name) < 0)
+ pr_err("Failed to request INTC register region\n");
+
+ priv->reg[idx] = ioremap_nocache(res.start, resource_size(&res));
+ if (!priv->reg[idx])
+ panic("Failed to ioremap INTC register range");
+
+ /* start up with everything masked before we hook the parent IRQ */
+ __raw_writel(0, priv->reg[idx] + INTC_REG_ENABLE);
+ priv->enable[idx] = 0;
+
+ return IRQS_PER_WORD;
+}
+
+static int __init intc_of_init(struct device_node *node,
+ struct device_node *parent)
+{
+ struct irq_domain *domain;
+ unsigned int parent_irq, n_irqs = 0;
+ struct bcm3384_intc *priv;
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ panic("Failed to allocate bcm3384_intc struct");
+
+ spin_lock_init(&priv->lock);
+
+ parent_irq = irq_of_parse_and_map(node, 0);
+ if (!parent_irq)
+ panic("Failed to get INTC IRQ");
+
+ n_irqs += ioremap_one_pair(priv, node, 0);
+ n_irqs += ioremap_one_pair(priv, node, 1);
+
+ if (!n_irqs)
+ panic("Failed to map INTC registers");
+
+ priv->n_words = n_irqs / IRQS_PER_WORD;
+ domain = irq_domain_add_linear(node, n_irqs, &irq_domain_ops, priv);
+ if (!domain)
+ panic("Failed to add irqdomain");
+
+ irq_set_chained_handler(parent_irq, bcm3384_intc_irq_handler);
+ irq_set_handler_data(parent_irq, domain);
+
+ return 0;
+}
+
+static struct of_device_id of_irq_ids[] __initdata = {
+ { .compatible = "mti,cpu-interrupt-controller",
+ .data = mips_cpu_irq_of_init },
+ { .compatible = "brcm,bcm3384-intc",
+ .data = intc_of_init },
+ {},
+};
+
+void __init arch_init_irq(void)
+{
+ bmips_tp1_irqs = 0;
+ of_irq_init(of_irq_ids);
+}
--- /dev/null
+/*
+ * 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) 2008 Maxime Bizon <mbizon@freebox.fr>
+ * Copyright (C) 2014 Kevin Cernekee <cernekee@gmail.com>
+ */
+
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <linux/clk-provider.h>
+#include <linux/ioport.h>
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/of_platform.h>
+#include <linux/smp.h>
+#include <asm/addrspace.h>
+#include <asm/bmips.h>
+#include <asm/bootinfo.h>
+#include <asm/prom.h>
+#include <asm/smp-ops.h>
+#include <asm/time.h>
+
+void __init prom_init(void)
+{
+ register_bmips_smp_ops();
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+const char *get_system_type(void)
+{
+ return "Generic BMIPS kernel";
+}
+
+void __init plat_time_init(void)
+{
+ struct device_node *np;
+ u32 freq;
+
+ np = of_find_node_by_name(NULL, "cpus");
+ if (!np)
+ panic("missing 'cpus' DT node");
+ if (of_property_read_u32(np, "mips-hpt-frequency", &freq) < 0)
+ panic("missing 'mips-hpt-frequency' property");
+ of_node_put(np);
+
+ mips_hpt_frequency = freq;
+}
+
+void __init plat_mem_setup(void)
+{
+ void *dtb = __dtb_start;
+
+ set_io_port_base(0);
+ ioport_resource.start = 0;
+ ioport_resource.end = ~0;
+
+ /* intended to somewhat resemble ARM; see Documentation/arm/Booting */
+ if (fw_arg0 == 0 && fw_arg1 == 0xffffffff)
+ dtb = phys_to_virt(fw_arg2);
+
+ __dt_setup_arch(dtb);
+
+ strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
+}
+
+void __init device_tree_init(void)
+{
+ struct device_node *np;
+
+ unflatten_and_copy_device_tree();
+
+ /* Disable SMP boot unless both CPUs are listed in DT and !disabled */
+ np = of_find_node_by_name(NULL, "cpus");
+ if (np && of_get_available_child_count(np) <= 1)
+ bmips_smp_enabled = 0;
+ of_node_put(np);
+}
+
+int __init plat_of_setup(void)
+{
+ return __dt_register_buses("brcm,bcm3384", "simple-bus");
+}
+
+arch_initcall(plat_of_setup);
+
+static int __init plat_dev_init(void)
+{
+ of_clk_init(NULL);
+ return 0;
+}
+
+device_initcall(plat_dev_init);
-dtb-$(CONFIG_BCM3384) += bcm93384wvg.dtb
+dtb-$(CONFIG_BMIPS_GENERIC) += bcm93384wvg.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
+++ /dev/null
-CONFIG_BCM3384=y
-CONFIG_HIGHMEM=y
-CONFIG_SMP=y
-CONFIG_NR_CPUS=4
-# CONFIG_SECCOMP is not set
-CONFIG_MIPS_O32_FP64_SUPPORT=y
-# CONFIG_LOCALVERSION_AUTO is not set
-# CONFIG_SWAP is not set
-CONFIG_NO_HZ=y
-CONFIG_BLK_DEV_INITRD=y
-# CONFIG_RD_GZIP is not set
-CONFIG_EXPERT=y
-# CONFIG_VM_EVENT_COUNTERS is not set
-# CONFIG_SLUB_DEBUG is not set
-# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_PACKET_DIAG=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
-# CONFIG_INET_DIAG is not set
-CONFIG_CFG80211=y
-CONFIG_NL80211_TESTMODE=y
-CONFIG_MAC80211=y
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_DEVTMPFS=y
-CONFIG_DEVTMPFS_MOUNT=y
-# CONFIG_STANDALONE is not set
-# CONFIG_PREVENT_FIRMWARE_BUILD is not set
-CONFIG_MTD=y
-CONFIG_MTD_CFI=y
-CONFIG_MTD_CFI_INTELEXT=y
-CONFIG_MTD_CFI_AMDSTD=y
-CONFIG_MTD_PHYSMAP=y
-# CONFIG_BLK_DEV is not set
-CONFIG_SCSI=y
-CONFIG_BLK_DEV_SD=y
-# CONFIG_SCSI_LOWLEVEL is not set
-CONFIG_NETDEVICES=y
-CONFIG_USB_USBNET=y
-# CONFIG_INPUT is not set
-# CONFIG_SERIO is not set
-# CONFIG_VT is not set
-# CONFIG_DEVKMEM is not set
-CONFIG_SERIAL_EARLYCON_FORCE=y
-CONFIG_SERIAL_BCM63XX=y
-CONFIG_SERIAL_BCM63XX_CONSOLE=y
-# CONFIG_HW_RANDOM is not set
-# CONFIG_HWMON is not set
-CONFIG_USB=y
-CONFIG_USB_EHCI_HCD=y
-# CONFIG_USB_EHCI_TT_NEWSCHED is not set
-CONFIG_USB_EHCI_HCD_PLATFORM=y
-CONFIG_USB_OHCI_HCD=y
-CONFIG_USB_OHCI_HCD_PLATFORM=y
-CONFIG_USB_STORAGE=y
-CONFIG_EXT4_FS=y
-CONFIG_EXT4_FS_POSIX_ACL=y
-CONFIG_EXT4_FS_SECURITY=y
-# CONFIG_DNOTIFY is not set
-CONFIG_FUSE_FS=y
-CONFIG_VFAT_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_TMPFS=y
-CONFIG_NFS_FS=y
-CONFIG_CIFS=y
-CONFIG_NLS_CODEPAGE_437=y
-CONFIG_NLS_ASCII=y
-CONFIG_NLS_ISO8859_1=y
-CONFIG_DEBUG_FS=y
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_CRYPTO_HW is not set
--- /dev/null
+CONFIG_BMIPS_GENERIC=y
+CONFIG_HIGHMEM=y
+CONFIG_SMP=y
+CONFIG_NR_CPUS=4
+# CONFIG_SECCOMP is not set
+CONFIG_MIPS_O32_FP64_SUPPORT=y
+# CONFIG_LOCALVERSION_AUTO is not set
+# CONFIG_SWAP is not set
+CONFIG_NO_HZ=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_GZIP is not set
+CONFIG_EXPERT=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_PACKET_DIAG=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+CONFIG_CFG80211=y
+CONFIG_NL80211_TESTMODE=y
+CONFIG_MAC80211=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+CONFIG_MTD=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_PHYSMAP=y
+# CONFIG_BLK_DEV is not set
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_NETDEVICES=y
+CONFIG_USB_USBNET=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_DEVKMEM is not set
+CONFIG_SERIAL_EARLYCON_FORCE=y
+CONFIG_SERIAL_BCM63XX=y
+CONFIG_SERIAL_BCM63XX_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+# CONFIG_USB_EHCI_TT_NEWSCHED is not set
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
+CONFIG_USB_STORAGE=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+# CONFIG_DNOTIFY is not set
+CONFIG_FUSE_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_NFS_FS=y
+CONFIG_CIFS=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_CRYPTO_HW is not set
+++ /dev/null
-/*
- * Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org>
- * Copyright (C) 2009 Broadcom Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __ASM_MACH_BCM3384_DMA_COHERENCE_H
-#define __ASM_MACH_BCM3384_DMA_COHERENCE_H
-
-struct device;
-
-extern dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size);
-extern dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page);
-extern unsigned long plat_dma_addr_to_phys(struct device *dev,
- dma_addr_t dma_addr);
-
-static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr,
- size_t size, enum dma_data_direction direction)
-{
-}
-
-static inline int plat_dma_supported(struct device *dev, u64 mask)
-{
- /*
- * we fall back to GFP_DMA when the mask isn't all 1s,
- * so we can't guarantee allocations that must be
- * within a tighter range than GFP_DMA..
- */
- if (mask < DMA_BIT_MASK(24))
- return 0;
-
- return 1;
-}
-
-static inline int plat_device_is_coherent(struct device *dev)
-{
- return 0;
-}
-
-#endif /* __ASM_MACH_BCM3384_DMA_COHERENCE_H */
--- /dev/null
+/*
+ * Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org>
+ * Copyright (C) 2009 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ASM_MACH_BMIPS_DMA_COHERENCE_H
+#define __ASM_MACH_BMIPS_DMA_COHERENCE_H
+
+struct device;
+
+extern dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size);
+extern dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page);
+extern unsigned long plat_dma_addr_to_phys(struct device *dev,
+ dma_addr_t dma_addr);
+
+static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction direction)
+{
+}
+
+static inline int plat_dma_supported(struct device *dev, u64 mask)
+{
+ /*
+ * we fall back to GFP_DMA when the mask isn't all 1s,
+ * so we can't guarantee allocations that must be
+ * within a tighter range than GFP_DMA..
+ */
+ if (mask < DMA_BIT_MASK(24))
+ return 0;
+
+ return 1;
+}
+
+static inline int plat_device_is_coherent(struct device *dev)
+{
+ return 0;
+}
+
+#endif /* __ASM_MACH_BMIPS_DMA_COHERENCE_H */
projects / linux-drm-fsl-dcu.git / commitdiff