#include <asm/mach/arch.h>
#include <asm/mach-types.h>
- void __init early_init_dt_add_memory_arch(u64 base, u64 size)
-void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
--{
- arm_add_memory(base, size);
- return memblock_virt_alloc(size, align);
--}
-
-void __init arm_dt_memblock_reserve(void)
-{
- u64 *reserve_map, base, size;
- if (!initial_boot_params)
- return;
+#ifdef CONFIG_SMP
+extern struct of_cpu_method __cpu_method_of_table[];
- /* Reserve the dtb region */
- memblock_reserve(virt_to_phys(initial_boot_params),
- be32_to_cpu(initial_boot_params->totalsize));
+static const struct of_cpu_method __cpu_method_of_table_sentinel
+ __used __section(__cpu_method_of_table_end);
- /*
- * Process the reserve map. This will probably overlap the initrd
- * and dtb locations which are already reserved, but overlaping
- * doesn't hurt anything
- */
- reserve_map = ((void*)initial_boot_params) +
- be32_to_cpu(initial_boot_params->off_mem_rsvmap);
- while (1) {
- base = be64_to_cpup(reserve_map++);
- size = be64_to_cpup(reserve_map++);
- if (!size)
- break;
- memblock_reserve(base, size);
- }
-}
-
-#ifdef CONFIG_SMP
-extern struct of_cpu_method __cpu_method_of_table_begin[];
-extern struct of_cpu_method __cpu_method_of_table_end[];
static int __init set_smp_ops_by_method(struct device_node *node)
{
exynos_map_io();
}
- static int __init exynos4_l2x0_cache_init(void)
- {
- int ret;
-
- if (!soc_is_exynos4())
- return 0;
-
- ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK);
- if (ret)
- return ret;
-struct bus_type exynos_subsys = {
- .name = "exynos-core",
- .dev_name = "exynos-core",
-};
--
- if (IS_ENABLED(CONFIG_S5P_SLEEP)) {
- l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs);
- clean_dcache_area(&l2x0_regs_phys, sizeof(unsigned long));
- }
- return 0;
-static int __init exynos_core_init(void)
-{
- return subsys_system_register(&exynos_subsys, NULL);
--}
- early_initcall(exynos4_l2x0_cache_init);
-core_initcall(exynos_core_init);
--
static void __init exynos_dt_machine_init(void)
{
struct device_node *i2c_np;
};
DT_MACHINE_START(ARMADA_375_DT, "Marvell Armada 375 (Device Tree)")
+ .l2c_aux_val = 0,
+ .l2c_aux_mask = ~0,
.init_time = mvebu_timer_and_clk_init,
+ .init_machine = mvebu_dt_init,
.restart = mvebu_restart,
.dt_compat = armada_375_dt_compat,
MACHINE_END
* in every restore MPUSS OFF path.
*/
#ifdef CONFIG_CACHE_L2X0
- static void save_l2x0_context(void)
+ static void __init save_l2x0_context(void)
{
- u32 val;
- void __iomem *l2x0_base = omap4_get_l2cache_base();
- if (l2x0_base) {
- val = readl_relaxed(l2x0_base + L2X0_AUX_CTRL);
- writel_relaxed(val, sar_base + L2X0_AUXCTRL_OFFSET);
- val = readl_relaxed(l2x0_base + L2X0_PREFETCH_CTRL);
- writel_relaxed(val, sar_base + L2X0_PREFETCH_CTRL_OFFSET);
- }
- __raw_writel(l2x0_saved_regs.aux_ctrl,
++ writel_relaxed(l2x0_saved_regs.aux_ctrl,
+ sar_base + L2X0_AUXCTRL_OFFSET);
- __raw_writel(l2x0_saved_regs.prefetch_ctrl,
++ writel_relaxed(l2x0_saved_regs.prefetch_ctrl,
+ sar_base + L2X0_PREFETCH_CTRL_OFFSET);
}
#else
- static void save_l2x0_context(void)
+ static void __init save_l2x0_context(void)
{}
#endif
struct pci_bus *orion5x_pci_sys_scan_bus(int nr, struct pci_sys_data *sys);
int orion5x_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
- struct meminfo;
-/* board init functions for boards not fully converted to fdt */
-#ifdef CONFIG_MACH_EDMINI_V2_DT
-void edmini_v2_init(void);
-#else
-static inline void edmini_v2_init(void) {};
-#endif
-
struct tag;
- extern void __init tag_fixup_mem32(struct tag *, char **, struct meminfo *);
+ extern void __init tag_fixup_mem32(struct tag *, char **);
+#ifdef CONFIG_MACH_MSS2_DT
+extern void mss2_init(void);
+#else
+static inline void mss2_init(void) {}
+#endif
+
/*****************************************************************************
* Helpers to access Orion registers
****************************************************************************/
};
DT_MACHINE_START(ROCKCHIP_DT, "Rockchip Cortex-A9 (Device Tree)")
- .init_machine = rockchip_dt_init,
+ .l2c_aux_val = 0,
+ .l2c_aux_mask = ~0,
- .smp = smp_ops(rockchip_smp_ops),
.dt_compat = rockchip_board_dt_compat,
MACHINE_END
.init_machine = v2m_init,
MACHINE_END
-static struct map_desc v2m_rs1_io_desc __initdata = {
- .virtual = V2M_PERIPH,
- .pfn = __phys_to_pfn(0x1c000000),
- .length = SZ_2M,
- .type = MT_DEVICE,
-};
-
-static int __init v2m_dt_scan_memory_map(unsigned long node, const char *uname,
- int depth, void *data)
-{
- const char **map = data;
-
- if (strcmp(uname, "motherboard") != 0)
- return 0;
-
- *map = of_get_flat_dt_prop(node, "arm,v2m-memory-map", NULL);
-
- return 1;
-}
-
-void __init v2m_dt_map_io(void)
-{
- const char *map = NULL;
-
- of_scan_flat_dt(v2m_dt_scan_memory_map, &map);
-
- if (map && strcmp(map, "rs1") == 0)
- iotable_init(&v2m_rs1_io_desc, 1);
- else
- iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc));
-
-#if defined(CONFIG_SMP)
- vexpress_dt_smp_map_io();
-#endif
-}
-
-void __init v2m_dt_init_early(void)
-{
- u32 dt_hbi;
-
- vexpress_sysreg_of_early_init();
-
- /* Confirm board type against DT property, if available */
- if (of_property_read_u32(of_allnodes, "arm,hbi", &dt_hbi) == 0) {
- u32 hbi = vexpress_get_hbi(VEXPRESS_SITE_MASTER);
-
- if (WARN_ON(dt_hbi != hbi))
- pr_warning("vexpress: DT HBI (%x) is not matching "
- "hardware (%x)!\n", dt_hbi, hbi);
- }
-
- versatile_sched_clock_init(vexpress_get_24mhz_clock_base(), 24000000);
-}
-
-static const struct of_device_id v2m_dt_bus_match[] __initconst = {
- { .compatible = "simple-bus", },
- { .compatible = "arm,amba-bus", },
- { .compatible = "arm,vexpress,config-bus", },
- {}
-};
-
static void __init v2m_dt_init(void)
{
- l2x0_of_init(0x00400000, 0xfe0fffff);
- of_platform_populate(NULL, v2m_dt_bus_match, NULL, NULL);
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static const char * const v2m_dt_match[] __initconst = {
DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express")
.dt_compat = v2m_dt_match,
- .smp = smp_ops(vexpress_smp_ops),
+ .l2c_aux_val = 0x00400000,
+ .l2c_aux_mask = 0xfe0fffff,
+ .smp = smp_ops(vexpress_smp_dt_ops),
.smp_init = smp_init_ops(vexpress_smp_init_ops),
- .map_io = v2m_dt_map_io,
- .init_early = v2m_dt_init_early,
.init_machine = v2m_dt_init,
MACHINE_END
static void __init zynq_init_machine(void)
{
struct platform_device_info devinfo = { .name = "cpufreq-cpu0", };
- /*
- * 64KB way size, 8-way associativity, parity disabled
- */
- l2x0_of_init(0x02060000, 0xF0F0FFFF);
-
+ struct soc_device_attribute *soc_dev_attr;
+ struct soc_device *soc_dev;
+ struct device *parent = NULL;
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ goto out;
+
+ system_rev = zynq_get_revision();
+
+ soc_dev_attr->family = kasprintf(GFP_KERNEL, "Xilinx Zynq");
+ soc_dev_attr->revision = kasprintf(GFP_KERNEL, "0x%x", system_rev);
+ soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "0x%x",
+ zynq_slcr_get_device_id());
+
+ soc_dev = soc_device_register(soc_dev_attr);
+ if (IS_ERR(soc_dev)) {
+ kfree(soc_dev_attr->family);
+ kfree(soc_dev_attr->revision);
+ kfree(soc_dev_attr->soc_id);
+ kfree(soc_dev_attr);
+ goto out;
+ }
+
+ parent = soc_device_to_device(soc_dev);
- of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+out:
+ /*
+ * Finished with the static registrations now; fill in the missing
+ * devices
+ */
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, parent);
platform_device_register(&zynq_cpuidle_device);
platform_device_register_full(&devinfo);
return ioremap(res.start, resource_size(&res));
}
EXPORT_SYMBOL(of_iomap);
-EXPORT_SYMBOL_GPL(of_dma_is_coherent);
+
+ /**
+ * of_dma_get_range - Get DMA range info
+ * @np: device node to get DMA range info
+ * @dma_addr: pointer to store initial DMA address of DMA range
+ * @paddr: pointer to store initial CPU address of DMA range
+ * @size: pointer to store size of DMA range
+ *
+ * Look in bottom up direction for the first "dma-ranges" property
+ * and parse it.
+ * dma-ranges format:
+ * DMA addr (dma_addr) : naddr cells
+ * CPU addr (phys_addr_t) : pna cells
+ * size : nsize cells
+ *
+ * It returns -ENODEV if "dma-ranges" property was not found
+ * for this device in DT.
+ */
+ int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr, u64 *size)
+ {
+ struct device_node *node = of_node_get(np);
+ const __be32 *ranges = NULL;
+ int len, naddr, nsize, pna;
+ int ret = 0;
+ u64 dmaaddr;
+
+ if (!node)
+ return -EINVAL;
+
+ while (1) {
+ naddr = of_n_addr_cells(node);
+ nsize = of_n_size_cells(node);
+ node = of_get_next_parent(node);
+ if (!node)
+ break;
+
+ ranges = of_get_property(node, "dma-ranges", &len);
+
+ /* Ignore empty ranges, they imply no translation required */
+ if (ranges && len > 0)
+ break;
+
+ /*
+ * At least empty ranges has to be defined for parent node if
+ * DMA is supported
+ */
+ if (!ranges)
+ break;
+ }
+
+ if (!ranges) {
+ pr_debug("%s: no dma-ranges found for node(%s)\n",
+ __func__, np->full_name);
+ ret = -ENODEV;
+ goto out;
+ }
+
+ len /= sizeof(u32);
+
+ pna = of_n_addr_cells(node);
+
+ /* dma-ranges format:
+ * DMA addr : naddr cells
+ * CPU addr : pna cells
+ * size : nsize cells
+ */
+ dmaaddr = of_read_number(ranges, naddr);
+ *paddr = of_translate_dma_address(np, ranges);
+ if (*paddr == OF_BAD_ADDR) {
+ pr_err("%s: translation of DMA address(%pad) to CPU address failed node(%s)\n",
+ __func__, dma_addr, np->full_name);
+ ret = -EINVAL;
+ goto out;
+ }
+ *dma_addr = dmaaddr;
+
+ *size = of_read_number(ranges + naddr + pna, nsize);
+
+ pr_debug("dma_addr(%llx) cpu_addr(%llx) size(%llx)\n",
+ *dma_addr, *paddr, *size);
+
+ out:
+ of_node_put(node);
+
+ return ret;
+ }
+ EXPORT_SYMBOL_GPL(of_dma_get_range);
+
+ /**
+ * of_dma_is_coherent - Check if device is coherent
+ * @np: device node
+ *
+ * It returns true if "dma-coherent" property was found
+ * for this device in DT.
+ */
+ bool of_dma_is_coherent(struct device_node *np)
+ {
+ struct device_node *node = of_node_get(np);
+
+ while (node) {
+ if (of_property_read_bool(node, "dma-coherent")) {
+ of_node_put(node);
+ return true;
+ }
+ node = of_get_next_parent(node);
+ }
+ of_node_put(node);
+ return false;
+ }
++EXPORT_SYMBOL_GPL(of_dma_is_coherent);
dev = of_device_alloc(np, bus_id, parent);
if (!dev)
- return NULL;
+ goto err_clear_flag;
- #if defined(CONFIG_MICROBLAZE)
- dev->archdata.dma_mask = 0xffffffffUL;
- #endif
- dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
- if (!dev->dev.dma_mask)
- dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
+ of_dma_configure(dev);
dev->dev.bus = &platform_bus_type;
dev->dev.platform_data = platform_data;
projects / mirror_ubuntu-bionic-kernel.git / commitdiff