select POWER_RESET
select POWER_RESET_VERSATILE
select POWER_SUPPLY
+ select SOC_INTEGRATOR_CM
select SPARSE_IRQ
select USE_OF
select VERSATILE_FPGA_IRQ
void integrator_init_early(void);
int integrator_init(bool is_cp);
void integrator_reserve(void);
-void integrator_init_sysfs(struct device *parent, u32 id);
raw_spin_unlock_irqrestore(&cm_lock, flags);
}
-static const char *integrator_arch_str(u32 id)
-{
- switch ((id >> 16) & 0xff) {
- case 0x00:
- return "ASB little-endian";
- case 0x01:
- return "AHB little-endian";
- case 0x03:
- return "AHB-Lite system bus, bi-endian";
- case 0x04:
- return "AHB";
- case 0x08:
- return "AHB system bus, ASB processor bus";
- default:
- return "Unknown";
- }
-}
-
-static const char *integrator_fpga_str(u32 id)
-{
- switch ((id >> 12) & 0xf) {
- case 0x01:
- return "XC4062";
- case 0x02:
- return "XC4085";
- case 0x03:
- return "XVC600";
- case 0x04:
- return "EPM7256AE (Altera PLD)";
- default:
- return "Unknown";
- }
-}
-
void cm_clear_irqs(void)
{
/* disable core module IRQs */
void cm_init(void)
{
struct device_node *cm = of_find_matching_node(NULL, cm_match);
- u32 val;
if (!cm) {
pr_crit("no core module node found in device tree\n");
return;
}
cm_clear_irqs();
- val = readl(cm_base + INTEGRATOR_HDR_ID_OFFSET);
- pr_info("Detected ARM core module:\n");
- pr_info(" Manufacturer: %02x\n", (val >> 24));
- pr_info(" Architecture: %s\n", integrator_arch_str(val));
- pr_info(" FPGA: %s\n", integrator_fpga_str(val));
- pr_info(" Build: %02x\n", (val >> 4) & 0xFF);
- pr_info(" Rev: %c\n", ('A' + (val & 0x03)));
}
/*
{
memblock_reserve(PHYS_OFFSET, __pa(swapper_pg_dir) - PHYS_OFFSET);
}
-
-static u32 integrator_id;
-
-static ssize_t intcp_get_manf(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "%02x\n", integrator_id >> 24);
-}
-
-static struct device_attribute intcp_manf_attr =
- __ATTR(manufacturer, S_IRUGO, intcp_get_manf, NULL);
-
-static ssize_t intcp_get_arch(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "%s\n", integrator_arch_str(integrator_id));
-}
-
-static struct device_attribute intcp_arch_attr =
- __ATTR(architecture, S_IRUGO, intcp_get_arch, NULL);
-
-static ssize_t intcp_get_fpga(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "%s\n", integrator_fpga_str(integrator_id));
-}
-
-static struct device_attribute intcp_fpga_attr =
- __ATTR(fpga, S_IRUGO, intcp_get_fpga, NULL);
-
-static ssize_t intcp_get_build(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "%02x\n", (integrator_id >> 4) & 0xFF);
-}
-
-static struct device_attribute intcp_build_attr =
- __ATTR(build, S_IRUGO, intcp_get_build, NULL);
-
-
-
-void integrator_init_sysfs(struct device *parent, u32 id)
-{
- integrator_id = id;
- device_create_file(parent, &intcp_manf_attr);
- device_create_file(parent, &intcp_arch_attr);
- device_create_file(parent, &intcp_fpga_attr);
- device_create_file(parent, &intcp_build_attr);
-}
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/stat.h>
-#include <linux/sys_soc.h>
#include <linux/termios.h>
#include <asm/hardware/arm_timer.h>
unsigned long sc_dec;
struct device_node *syscon;
struct device_node *ebi;
- struct device *parent;
- struct soc_device *soc_dev;
- struct soc_device_attribute *soc_dev_attr;
- u32 ap_sc_id;
int i;
syscon = of_find_matching_node(NULL, ap_syscon_match);
of_platform_populate(NULL, of_default_bus_match_table,
ap_auxdata_lookup, NULL);
- ap_sc_id = readl(ap_syscon_base);
-
- soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
- if (!soc_dev_attr)
- return;
-
- soc_dev_attr->soc_id = "XVC";
- soc_dev_attr->machine = "Integrator/AP";
- soc_dev_attr->family = "Integrator";
- soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%c",
- 'A' + (ap_sc_id & 0x0f));
-
- soc_dev = soc_device_register(soc_dev_attr);
- if (IS_ERR(soc_dev)) {
- kfree(soc_dev_attr->revision);
- kfree(soc_dev_attr);
- return;
- }
-
- parent = soc_device_to_device(soc_dev);
- integrator_init_sysfs(parent, ap_sc_id);
-
sc_dec = readl(ap_syscon_base + INTEGRATOR_SC_DEC_OFFSET);
for (i = 0; i < 4; i++) {
struct lm_device *lmdev;
#include <linux/of_irq.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
-#include <linux/sys_soc.h>
#include <linux/sched_clock.h>
#include <asm/setup.h>
static void __init intcp_init_of(void)
{
struct device_node *cpcon;
- struct device *parent;
- struct soc_device *soc_dev;
- struct soc_device_attribute *soc_dev_attr;
- u32 intcp_sc_id;
cpcon = of_find_matching_node(NULL, intcp_syscon_match);
if (!cpcon)
of_platform_populate(NULL, of_default_bus_match_table,
intcp_auxdata_lookup, NULL);
-
- intcp_sc_id = readl(intcp_con_base);
-
- soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
- if (!soc_dev_attr)
- return;
-
- soc_dev_attr->soc_id = "XCV";
- soc_dev_attr->machine = "Integrator/CP";
- soc_dev_attr->family = "Integrator";
- soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%c",
- 'A' + (intcp_sc_id & 0x0f));
-
- soc_dev = soc_device_register(soc_dev_attr);
- if (IS_ERR(soc_dev)) {
- kfree(soc_dev_attr->revision);
- kfree(soc_dev_attr);
- return;
- }
-
- parent = soc_device_to_device(soc_dev);
- integrator_init_sysfs(parent, intcp_sc_id);
}
static const char * intcp_dt_board_compat[] = {
#
# ARM Versatile SoC drivers
#
+config SOC_INTEGRATOR_CM
+ bool "SoC bus device for the ARM Integrator platform core modules"
+ depends on ARCH_INTEGRATOR
+ select SOC_BUS
+ help
+ Include support for the SoC bus on the ARM Integrator platform
+ core modules providing some sysfs information about the ASIC
+ variant.
+
config SOC_REALVIEW
bool "SoC bus device for the ARM RealView platforms"
depends on ARCH_REALVIEW
+obj-$(CONFIG_SOC_INTEGRATOR_CM) += soc-integrator.o
obj-$(CONFIG_SOC_REALVIEW) += soc-realview.o
--- /dev/null
+/*
+ * Copyright (C) 2014 Linaro Ltd.
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * 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.
+ *
+ */
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/sys_soc.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/of.h>
+
+#define INTEGRATOR_HDR_ID_OFFSET 0x00
+
+static u32 integrator_coreid;
+
+static const struct of_device_id integrator_cm_match[] = {
+ { .compatible = "arm,core-module-integrator", },
+};
+
+static const char *integrator_arch_str(u32 id)
+{
+ switch ((id >> 16) & 0xff) {
+ case 0x00:
+ return "ASB little-endian";
+ case 0x01:
+ return "AHB little-endian";
+ case 0x03:
+ return "AHB-Lite system bus, bi-endian";
+ case 0x04:
+ return "AHB";
+ case 0x08:
+ return "AHB system bus, ASB processor bus";
+ default:
+ return "Unknown";
+ }
+}
+
+static const char *integrator_fpga_str(u32 id)
+{
+ switch ((id >> 12) & 0xf) {
+ case 0x01:
+ return "XC4062";
+ case 0x02:
+ return "XC4085";
+ case 0x03:
+ return "XVC600";
+ case 0x04:
+ return "EPM7256AE (Altera PLD)";
+ default:
+ return "Unknown";
+ }
+}
+
+static ssize_t integrator_get_manf(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%02x\n", integrator_coreid >> 24);
+}
+
+static struct device_attribute integrator_manf_attr =
+ __ATTR(manufacturer, S_IRUGO, integrator_get_manf, NULL);
+
+static ssize_t integrator_get_arch(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%s\n", integrator_arch_str(integrator_coreid));
+}
+
+static struct device_attribute integrator_arch_attr =
+ __ATTR(arch, S_IRUGO, integrator_get_arch, NULL);
+
+static ssize_t integrator_get_fpga(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%s\n", integrator_fpga_str(integrator_coreid));
+}
+
+static struct device_attribute integrator_fpga_attr =
+ __ATTR(fpga, S_IRUGO, integrator_get_fpga, NULL);
+
+static ssize_t integrator_get_build(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%02x\n", (integrator_coreid >> 4) & 0xFF);
+}
+
+static struct device_attribute integrator_build_attr =
+ __ATTR(build, S_IRUGO, integrator_get_build, NULL);
+
+static int __init integrator_soc_init(void)
+{
+ static struct regmap *syscon_regmap;
+ struct soc_device *soc_dev;
+ struct soc_device_attribute *soc_dev_attr;
+ struct device_node *np;
+ struct device *dev;
+ u32 val;
+ int ret;
+
+ np = of_find_matching_node(NULL, integrator_cm_match);
+ if (!np)
+ return -ENODEV;
+
+ syscon_regmap = syscon_node_to_regmap(np);
+ if (IS_ERR(syscon_regmap))
+ return PTR_ERR(syscon_regmap);
+
+ ret = regmap_read(syscon_regmap, INTEGRATOR_HDR_ID_OFFSET,
+ &val);
+ if (ret)
+ return -ENODEV;
+ integrator_coreid = val;
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ return -ENOMEM;
+
+ soc_dev_attr->soc_id = "Integrator";
+ soc_dev_attr->machine = "Integrator";
+ soc_dev_attr->family = "Versatile";
+ soc_dev = soc_device_register(soc_dev_attr);
+ if (IS_ERR(soc_dev)) {
+ kfree(soc_dev_attr);
+ return -ENODEV;
+ }
+ dev = soc_device_to_device(soc_dev);
+
+ device_create_file(dev, &integrator_manf_attr);
+ device_create_file(dev, &integrator_arch_attr);
+ device_create_file(dev, &integrator_fpga_attr);
+ device_create_file(dev, &integrator_build_attr);
+
+ dev_info(dev, "Detected ARM core module:\n");
+ dev_info(dev, " Manufacturer: %02x\n", (val >> 24));
+ dev_info(dev, " Architecture: %s\n", integrator_arch_str(val));
+ dev_info(dev, " FPGA: %s\n", integrator_fpga_str(val));
+ dev_info(dev, " Build: %02x\n", (val >> 4) & 0xFF);
+ dev_info(dev, " Rev: %c\n", ('A' + (val & 0x03)));
+
+ return 0;
+}
+device_initcall(integrator_soc_init);
projects / cascardo / linux.git / commitdiff