2 * Copyright (C) ST-Ericsson SA 2010
4 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
5 * Author: Lee Jones <lee.jones@linaro.org> for ST-Ericsson
6 * License terms: GNU General Public License (GPL) version 2
9 #include <linux/platform_device.h>
11 #include <linux/clk.h>
12 #include <linux/mfd/db8500-prcmu.h>
13 #include <linux/clksrc-dbx500-prcmu.h>
14 #include <linux/sys_soc.h>
15 #include <linux/err.h>
16 #include <linux/slab.h>
17 #include <linux/stat.h>
19 #include <linux/of_irq.h>
21 #include <asm/hardware/gic.h>
22 #include <asm/mach/map.h>
24 #include <mach/hardware.h>
25 #include <mach/setup.h>
26 #include <mach/devices.h>
30 void __iomem *_PRCMU_BASE;
32 static const struct of_device_id ux500_dt_irq_match[] = {
33 { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
37 void __init ux500_init_irq(void)
39 void __iomem *dist_base;
40 void __iomem *cpu_base;
42 if (cpu_is_u8500_family()) {
43 dist_base = __io_address(U8500_GIC_DIST_BASE);
44 cpu_base = __io_address(U8500_GIC_CPU_BASE);
49 if (of_have_populated_dt())
50 of_irq_init(ux500_dt_irq_match);
53 gic_init(0, 29, dist_base, cpu_base);
56 * Init clocks here so that they are available for system timer
59 if (cpu_is_u8500_family())
60 db8500_prcmu_early_init();
64 static const char * __init ux500_get_machine(void)
66 return kasprintf(GFP_KERNEL, "DB%4x", dbx500_partnumber());
69 static const char * __init ux500_get_family(void)
71 return kasprintf(GFP_KERNEL, "ux500");
74 static const char * __init ux500_get_revision(void)
76 unsigned int rev = dbx500_revision();
79 return kasprintf(GFP_KERNEL, "%s", "ED");
81 return kasprintf(GFP_KERNEL, "%d.%d",
82 (rev >> 4) - 0xA + 1, rev & 0xf);
84 return kasprintf(GFP_KERNEL, "%s", "Unknown");
87 static ssize_t ux500_get_process(struct device *dev,
88 struct device_attribute *attr,
91 if (dbx500_id.process == 0x00)
92 return sprintf(buf, "Standard\n");
94 return sprintf(buf, "%02xnm\n", dbx500_id.process);
97 static void __init soc_info_populate(struct soc_device_attribute *soc_dev_attr,
100 soc_dev_attr->soc_id = soc_id;
101 soc_dev_attr->machine = ux500_get_machine();
102 soc_dev_attr->family = ux500_get_family();
103 soc_dev_attr->revision = ux500_get_revision();
106 struct device_attribute ux500_soc_attr =
107 __ATTR(process, S_IRUGO, ux500_get_process, NULL);
109 struct device * __init ux500_soc_device_init(const char *soc_id)
111 struct device *parent;
112 struct soc_device *soc_dev;
113 struct soc_device_attribute *soc_dev_attr;
115 soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
117 return ERR_PTR(-ENOMEM);
119 soc_info_populate(soc_dev_attr, soc_id);
121 soc_dev = soc_device_register(soc_dev_attr);
122 if (IS_ERR_OR_NULL(soc_dev)) {
127 parent = soc_device_to_device(soc_dev);
128 if (!IS_ERR_OR_NULL(parent))
129 device_create_file(parent, &ux500_soc_attr);