#
# Makefile for the linux kernel.
#
-obj-y := soc.o
# CPU-specific support
obj-$(CONFIG_SOC_AT91RM9200) += at91rm9200.o
#include <asm/mach/arch.h>
#include "generic.h"
-#include "soc.h"
-
-static const struct at91_soc rm9200_socs[] = {
- AT91_SOC(AT91RM9200_CIDR_MATCH, 0, "at91rm9200 BGA", "at91rm9200"),
- { /* sentinel */ },
-};
static void __init at91rm9200_dt_device_init(void)
{
- struct soc_device *soc;
- struct device *soc_dev = NULL;
-
- soc = at91_soc_init(rm9200_socs);
- if (soc != NULL)
- soc_dev = soc_device_to_device(soc);
-
- of_platform_default_populate(NULL, NULL, soc_dev);
+ of_platform_default_populate(NULL, NULL, NULL);
at91rm9200_pm_init();
}
#include <asm/system_misc.h>
#include "generic.h"
-#include "soc.h"
-
-static const struct at91_soc at91sam9_socs[] = {
- AT91_SOC(AT91SAM9260_CIDR_MATCH, 0, "at91sam9260", NULL),
- AT91_SOC(AT91SAM9261_CIDR_MATCH, 0, "at91sam9261", NULL),
- AT91_SOC(AT91SAM9263_CIDR_MATCH, 0, "at91sam9263", NULL),
- AT91_SOC(AT91SAM9G20_CIDR_MATCH, 0, "at91sam9g20", NULL),
- AT91_SOC(AT91SAM9RL64_CIDR_MATCH, 0, "at91sam9rl64", NULL),
- AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91SAM9M11_EXID_MATCH,
- "at91sam9m11", "at91sam9g45"),
- AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91SAM9M10_EXID_MATCH,
- "at91sam9m10", "at91sam9g45"),
- AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91SAM9G46_EXID_MATCH,
- "at91sam9g46", "at91sam9g45"),
- AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91SAM9G45_EXID_MATCH,
- "at91sam9g45", "at91sam9g45"),
- AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9G15_EXID_MATCH,
- "at91sam9g15", "at91sam9x5"),
- AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9G35_EXID_MATCH,
- "at91sam9g35", "at91sam9x5"),
- AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9X35_EXID_MATCH,
- "at91sam9x35", "at91sam9x5"),
- AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9G25_EXID_MATCH,
- "at91sam9g25", "at91sam9x5"),
- AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9X25_EXID_MATCH,
- "at91sam9x25", "at91sam9x5"),
- AT91_SOC(AT91SAM9N12_CIDR_MATCH, AT91SAM9CN12_EXID_MATCH,
- "at91sam9cn12", "at91sam9n12"),
- AT91_SOC(AT91SAM9N12_CIDR_MATCH, AT91SAM9N12_EXID_MATCH,
- "at91sam9n12", "at91sam9n12"),
- AT91_SOC(AT91SAM9N12_CIDR_MATCH, AT91SAM9CN11_EXID_MATCH,
- "at91sam9cn11", "at91sam9n12"),
- AT91_SOC(AT91SAM9XE128_CIDR_MATCH, 0, "at91sam9xe128", "at91sam9xe128"),
- AT91_SOC(AT91SAM9XE256_CIDR_MATCH, 0, "at91sam9xe256", "at91sam9xe256"),
- AT91_SOC(AT91SAM9XE512_CIDR_MATCH, 0, "at91sam9xe512", "at91sam9xe512"),
- { /* sentinel */ },
-};
static void __init at91sam9_init(void)
{
- struct soc_device *soc;
- struct device *soc_dev = NULL;
-
- soc = at91_soc_init(at91sam9_socs);
- if (soc != NULL)
- soc_dev = soc_device_to_device(soc);
-
- of_platform_default_populate(NULL, NULL, soc_dev);
+ of_platform_default_populate(NULL, NULL, NULL);
at91sam9_pm_init();
}
#include <asm/system_misc.h>
#include "generic.h"
-#include "soc.h"
-
-static const struct at91_soc sama5_socs[] = {
- AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D21CU_EXID_MATCH,
- "sama5d21", "sama5d2"),
- AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D22CU_EXID_MATCH,
- "sama5d22", "sama5d2"),
- AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D23CU_EXID_MATCH,
- "sama5d23", "sama5d2"),
- AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D24CX_EXID_MATCH,
- "sama5d24", "sama5d2"),
- AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D24CU_EXID_MATCH,
- "sama5d24", "sama5d2"),
- AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D26CU_EXID_MATCH,
- "sama5d26", "sama5d2"),
- AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27CU_EXID_MATCH,
- "sama5d27", "sama5d2"),
- AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27CN_EXID_MATCH,
- "sama5d27", "sama5d2"),
- AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28CU_EXID_MATCH,
- "sama5d28", "sama5d2"),
- AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28CN_EXID_MATCH,
- "sama5d28", "sama5d2"),
- AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D31_EXID_MATCH,
- "sama5d31", "sama5d3"),
- AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D33_EXID_MATCH,
- "sama5d33", "sama5d3"),
- AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D34_EXID_MATCH,
- "sama5d34", "sama5d3"),
- AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D35_EXID_MATCH,
- "sama5d35", "sama5d3"),
- AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D36_EXID_MATCH,
- "sama5d36", "sama5d3"),
- AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D41_EXID_MATCH,
- "sama5d41", "sama5d4"),
- AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D42_EXID_MATCH,
- "sama5d42", "sama5d4"),
- AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D43_EXID_MATCH,
- "sama5d43", "sama5d4"),
- AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D44_EXID_MATCH,
- "sama5d44", "sama5d4"),
- { /* sentinel */ },
-};
static void __init sama5_dt_device_init(void)
{
- struct soc_device *soc;
- struct device *soc_dev = NULL;
-
- soc = at91_soc_init(sama5_socs);
- if (soc != NULL)
- soc_dev = soc_device_to_device(soc);
-
- of_platform_default_populate(NULL, NULL, soc_dev);
+ of_platform_default_populate(NULL, NULL, NULL);
sama5_pm_init();
}
+++ /dev/null
-/*
- * Copyright (C) 2015 Atmel
- *
- * Alexandre Belloni <alexandre.belloni@free-electrons.com
- * Boris Brezillon <boris.brezillon@free-electrons.com
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- *
- */
-
-#define pr_fmt(fmt) "AT91: " fmt
-
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_platform.h>
-#include <linux/slab.h>
-#include <linux/sys_soc.h>
-
-#include "soc.h"
-
-#define AT91_DBGU_CIDR 0x40
-#define AT91_DBGU_EXID 0x44
-#define AT91_CHIPID_CIDR 0x00
-#define AT91_CHIPID_EXID 0x04
-#define AT91_CIDR_VERSION(x) ((x) & 0x1f)
-#define AT91_CIDR_EXT BIT(31)
-#define AT91_CIDR_MATCH_MASK 0x7fffffe0
-
-static int __init at91_get_cidr_exid_from_dbgu(u32 *cidr, u32 *exid)
-{
- struct device_node *np;
- void __iomem *regs;
-
- np = of_find_compatible_node(NULL, NULL, "atmel,at91rm9200-dbgu");
- if (!np)
- np = of_find_compatible_node(NULL, NULL,
- "atmel,at91sam9260-dbgu");
- if (!np)
- return -ENODEV;
-
- regs = of_iomap(np, 0);
- of_node_put(np);
-
- if (!regs) {
- pr_warn("Could not map DBGU iomem range");
- return -ENXIO;
- }
-
- *cidr = readl(regs + AT91_DBGU_CIDR);
- *exid = readl(regs + AT91_DBGU_EXID);
-
- iounmap(regs);
-
- return 0;
-}
-
-static int __init at91_get_cidr_exid_from_chipid(u32 *cidr, u32 *exid)
-{
- struct device_node *np;
- void __iomem *regs;
-
- np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-chipid");
- if (!np)
- return -ENODEV;
-
- regs = of_iomap(np, 0);
- of_node_put(np);
-
- if (!regs) {
- pr_warn("Could not map DBGU iomem range");
- return -ENXIO;
- }
-
- *cidr = readl(regs + AT91_CHIPID_CIDR);
- *exid = readl(regs + AT91_CHIPID_EXID);
-
- iounmap(regs);
-
- return 0;
-}
-
-struct soc_device * __init at91_soc_init(const struct at91_soc *socs)
-{
- struct soc_device_attribute *soc_dev_attr;
- const struct at91_soc *soc;
- struct soc_device *soc_dev;
- u32 cidr, exid;
- int ret;
-
- /*
- * With SAMA5D2 and later SoCs, CIDR and EXID registers are no more
- * in the dbgu device but in the chipid device whose purpose is only
- * to expose these two registers.
- */
- ret = at91_get_cidr_exid_from_dbgu(&cidr, &exid);
- if (ret)
- ret = at91_get_cidr_exid_from_chipid(&cidr, &exid);
- if (ret) {
- if (ret == -ENODEV)
- pr_warn("Could not find identification node");
- return NULL;
- }
-
- for (soc = socs; soc->name; soc++) {
- if (soc->cidr_match != (cidr & AT91_CIDR_MATCH_MASK))
- continue;
-
- if (!(cidr & AT91_CIDR_EXT) || soc->exid_match == exid)
- break;
- }
-
- if (!soc->name) {
- pr_warn("Could not find matching SoC description\n");
- return NULL;
- }
-
- soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
- if (!soc_dev_attr)
- return NULL;
-
- soc_dev_attr->family = soc->family;
- soc_dev_attr->soc_id = soc->name;
- soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%X",
- AT91_CIDR_VERSION(cidr));
- soc_dev = soc_device_register(soc_dev_attr);
- if (IS_ERR(soc_dev)) {
- kfree(soc_dev_attr->revision);
- kfree(soc_dev_attr);
- pr_warn("Could not register SoC device\n");
- return NULL;
- }
-
- if (soc->family)
- pr_info("Detected SoC family: %s\n", soc->family);
- pr_info("Detected SoC: %s, revision %X\n", soc->name,
- AT91_CIDR_VERSION(cidr));
-
- return soc_dev;
-}
+++ /dev/null
-/*
- * Copyright (C) 2015 Atmel
- *
- * Boris Brezillon <boris.brezillon@free-electrons.com
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- *
- */
-
-#ifndef __AT91_SOC_H
-#define __AT91_SOC_H
-
-#include <linux/sys_soc.h>
-
-struct at91_soc {
- u32 cidr_match;
- u32 exid_match;
- const char *name;
- const char *family;
-};
-
-#define AT91_SOC(__cidr, __exid, __name, __family) \
- { \
- .cidr_match = (__cidr), \
- .exid_match = (__exid), \
- .name = (__name), \
- .family = (__family), \
- }
-
-struct soc_device * __init
-at91_soc_init(const struct at91_soc *socs);
-
-#define AT91RM9200_CIDR_MATCH 0x09290780
-
-#define AT91SAM9260_CIDR_MATCH 0x019803a0
-#define AT91SAM9261_CIDR_MATCH 0x019703a0
-#define AT91SAM9263_CIDR_MATCH 0x019607a0
-#define AT91SAM9G20_CIDR_MATCH 0x019905a0
-#define AT91SAM9RL64_CIDR_MATCH 0x019b03a0
-#define AT91SAM9G45_CIDR_MATCH 0x019b05a0
-#define AT91SAM9X5_CIDR_MATCH 0x019a05a0
-#define AT91SAM9N12_CIDR_MATCH 0x019a07a0
-
-#define AT91SAM9M11_EXID_MATCH 0x00000001
-#define AT91SAM9M10_EXID_MATCH 0x00000002
-#define AT91SAM9G46_EXID_MATCH 0x00000003
-#define AT91SAM9G45_EXID_MATCH 0x00000004
-
-#define AT91SAM9G15_EXID_MATCH 0x00000000
-#define AT91SAM9G35_EXID_MATCH 0x00000001
-#define AT91SAM9X35_EXID_MATCH 0x00000002
-#define AT91SAM9G25_EXID_MATCH 0x00000003
-#define AT91SAM9X25_EXID_MATCH 0x00000004
-
-#define AT91SAM9CN12_EXID_MATCH 0x00000005
-#define AT91SAM9N12_EXID_MATCH 0x00000006
-#define AT91SAM9CN11_EXID_MATCH 0x00000009
-
-#define AT91SAM9XE128_CIDR_MATCH 0x329973a0
-#define AT91SAM9XE256_CIDR_MATCH 0x329a93a0
-#define AT91SAM9XE512_CIDR_MATCH 0x329aa3a0
-
-#define SAMA5D2_CIDR_MATCH 0x0a5c08c0
-#define SAMA5D21CU_EXID_MATCH 0x0000005a
-#define SAMA5D22CU_EXID_MATCH 0x00000059
-#define SAMA5D22CN_EXID_MATCH 0x00000069
-#define SAMA5D23CU_EXID_MATCH 0x00000058
-#define SAMA5D24CX_EXID_MATCH 0x00000004
-#define SAMA5D24CU_EXID_MATCH 0x00000014
-#define SAMA5D26CU_EXID_MATCH 0x00000012
-#define SAMA5D27CU_EXID_MATCH 0x00000011
-#define SAMA5D27CN_EXID_MATCH 0x00000021
-#define SAMA5D28CU_EXID_MATCH 0x00000010
-#define SAMA5D28CN_EXID_MATCH 0x00000020
-
-#define SAMA5D3_CIDR_MATCH 0x0a5c07c0
-#define SAMA5D31_EXID_MATCH 0x00444300
-#define SAMA5D33_EXID_MATCH 0x00414300
-#define SAMA5D34_EXID_MATCH 0x00414301
-#define SAMA5D35_EXID_MATCH 0x00584300
-#define SAMA5D36_EXID_MATCH 0x00004301
-
-#define SAMA5D4_CIDR_MATCH 0x0a5c07c0
-#define SAMA5D41_EXID_MATCH 0x00000001
-#define SAMA5D42_EXID_MATCH 0x00000002
-#define SAMA5D43_EXID_MATCH 0x00000003
-#define SAMA5D44_EXID_MATCH 0x00000004
-
-#endif /* __AT91_SOC_H */
menu "SOC (System On Chip) specific Drivers"
+source "drivers/soc/atmel/Kconfig"
source "drivers/soc/bcm/Kconfig"
source "drivers/soc/fsl/Kconfig"
source "drivers/soc/mediatek/Kconfig"
# Makefile for the Linux Kernel SOC specific device drivers.
#
+obj-$(CONFIG_ARCH_AT91) += atmel/
obj-y += bcm/
obj-$(CONFIG_ARCH_DOVE) += dove/
obj-$(CONFIG_MACH_DOVE) += dove/
--- /dev/null
+config AT91_SOC_ID
+ bool "SoC bus for Atmel ARM SoCs"
+ depends on ARCH_AT91 || COMPILE_TEST
+ default ARCH_AT91
+ help
+ Include support for the SoC bus on the Atmel ARM SoCs.
--- /dev/null
+obj-$(CONFIG_AT91_SOC_ID) += soc.o
--- /dev/null
+/*
+ * Copyright (C) 2015 Atmel
+ *
+ * Alexandre Belloni <alexandre.belloni@free-electrons.com
+ * Boris Brezillon <boris.brezillon@free-electrons.com
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ *
+ */
+
+#define pr_fmt(fmt) "AT91: " fmt
+
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/slab.h>
+#include <linux/sys_soc.h>
+
+#include "soc.h"
+
+#define AT91_DBGU_CIDR 0x40
+#define AT91_DBGU_EXID 0x44
+#define AT91_CHIPID_CIDR 0x00
+#define AT91_CHIPID_EXID 0x04
+#define AT91_CIDR_VERSION(x) ((x) & 0x1f)
+#define AT91_CIDR_EXT BIT(31)
+#define AT91_CIDR_MATCH_MASK 0x7fffffe0
+
+static const struct at91_soc __initconst socs[] = {
+#ifdef CONFIG_SOC_AT91RM9200
+ AT91_SOC(AT91RM9200_CIDR_MATCH, 0, "at91rm9200 BGA", "at91rm9200"),
+#endif
+#ifdef CONFIG_SOC_AT91SAM9
+ AT91_SOC(AT91SAM9260_CIDR_MATCH, 0, "at91sam9260", NULL),
+ AT91_SOC(AT91SAM9261_CIDR_MATCH, 0, "at91sam9261", NULL),
+ AT91_SOC(AT91SAM9263_CIDR_MATCH, 0, "at91sam9263", NULL),
+ AT91_SOC(AT91SAM9G20_CIDR_MATCH, 0, "at91sam9g20", NULL),
+ AT91_SOC(AT91SAM9RL64_CIDR_MATCH, 0, "at91sam9rl64", NULL),
+ AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91SAM9M11_EXID_MATCH,
+ "at91sam9m11", "at91sam9g45"),
+ AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91SAM9M10_EXID_MATCH,
+ "at91sam9m10", "at91sam9g45"),
+ AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91SAM9G46_EXID_MATCH,
+ "at91sam9g46", "at91sam9g45"),
+ AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91SAM9G45_EXID_MATCH,
+ "at91sam9g45", "at91sam9g45"),
+ AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9G15_EXID_MATCH,
+ "at91sam9g15", "at91sam9x5"),
+ AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9G35_EXID_MATCH,
+ "at91sam9g35", "at91sam9x5"),
+ AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9X35_EXID_MATCH,
+ "at91sam9x35", "at91sam9x5"),
+ AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9G25_EXID_MATCH,
+ "at91sam9g25", "at91sam9x5"),
+ AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9X25_EXID_MATCH,
+ "at91sam9x25", "at91sam9x5"),
+ AT91_SOC(AT91SAM9N12_CIDR_MATCH, AT91SAM9CN12_EXID_MATCH,
+ "at91sam9cn12", "at91sam9n12"),
+ AT91_SOC(AT91SAM9N12_CIDR_MATCH, AT91SAM9N12_EXID_MATCH,
+ "at91sam9n12", "at91sam9n12"),
+ AT91_SOC(AT91SAM9N12_CIDR_MATCH, AT91SAM9CN11_EXID_MATCH,
+ "at91sam9cn11", "at91sam9n12"),
+ AT91_SOC(AT91SAM9XE128_CIDR_MATCH, 0, "at91sam9xe128", "at91sam9xe128"),
+ AT91_SOC(AT91SAM9XE256_CIDR_MATCH, 0, "at91sam9xe256", "at91sam9xe256"),
+ AT91_SOC(AT91SAM9XE512_CIDR_MATCH, 0, "at91sam9xe512", "at91sam9xe512"),
+#endif
+#ifdef CONFIG_SOC_SAMA5
+ AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D21CU_EXID_MATCH,
+ "sama5d21", "sama5d2"),
+ AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D22CU_EXID_MATCH,
+ "sama5d22", "sama5d2"),
+ AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D23CU_EXID_MATCH,
+ "sama5d23", "sama5d2"),
+ AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D24CX_EXID_MATCH,
+ "sama5d24", "sama5d2"),
+ AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D24CU_EXID_MATCH,
+ "sama5d24", "sama5d2"),
+ AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D26CU_EXID_MATCH,
+ "sama5d26", "sama5d2"),
+ AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27CU_EXID_MATCH,
+ "sama5d27", "sama5d2"),
+ AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27CN_EXID_MATCH,
+ "sama5d27", "sama5d2"),
+ AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28CU_EXID_MATCH,
+ "sama5d28", "sama5d2"),
+ AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28CN_EXID_MATCH,
+ "sama5d28", "sama5d2"),
+ AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D31_EXID_MATCH,
+ "sama5d31", "sama5d3"),
+ AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D33_EXID_MATCH,
+ "sama5d33", "sama5d3"),
+ AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D34_EXID_MATCH,
+ "sama5d34", "sama5d3"),
+ AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D35_EXID_MATCH,
+ "sama5d35", "sama5d3"),
+ AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D36_EXID_MATCH,
+ "sama5d36", "sama5d3"),
+ AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D41_EXID_MATCH,
+ "sama5d41", "sama5d4"),
+ AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D42_EXID_MATCH,
+ "sama5d42", "sama5d4"),
+ AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D43_EXID_MATCH,
+ "sama5d43", "sama5d4"),
+ AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D44_EXID_MATCH,
+ "sama5d44", "sama5d4"),
+#endif
+ { /* sentinel */ },
+};
+
+static int __init at91_get_cidr_exid_from_dbgu(u32 *cidr, u32 *exid)
+{
+ struct device_node *np;
+ void __iomem *regs;
+
+ np = of_find_compatible_node(NULL, NULL, "atmel,at91rm9200-dbgu");
+ if (!np)
+ np = of_find_compatible_node(NULL, NULL,
+ "atmel,at91sam9260-dbgu");
+ if (!np)
+ return -ENODEV;
+
+ regs = of_iomap(np, 0);
+ of_node_put(np);
+
+ if (!regs) {
+ pr_warn("Could not map DBGU iomem range");
+ return -ENXIO;
+ }
+
+ *cidr = readl(regs + AT91_DBGU_CIDR);
+ *exid = readl(regs + AT91_DBGU_EXID);
+
+ iounmap(regs);
+
+ return 0;
+}
+
+static int __init at91_get_cidr_exid_from_chipid(u32 *cidr, u32 *exid)
+{
+ struct device_node *np;
+ void __iomem *regs;
+
+ np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-chipid");
+ if (!np)
+ return -ENODEV;
+
+ regs = of_iomap(np, 0);
+ of_node_put(np);
+
+ if (!regs) {
+ pr_warn("Could not map DBGU iomem range");
+ return -ENXIO;
+ }
+
+ *cidr = readl(regs + AT91_CHIPID_CIDR);
+ *exid = readl(regs + AT91_CHIPID_EXID);
+
+ iounmap(regs);
+
+ return 0;
+}
+
+struct soc_device * __init at91_soc_init(const struct at91_soc *socs)
+{
+ struct soc_device_attribute *soc_dev_attr;
+ const struct at91_soc *soc;
+ struct soc_device *soc_dev;
+ u32 cidr, exid;
+ int ret;
+
+ /*
+ * With SAMA5D2 and later SoCs, CIDR and EXID registers are no more
+ * in the dbgu device but in the chipid device whose purpose is only
+ * to expose these two registers.
+ */
+ ret = at91_get_cidr_exid_from_dbgu(&cidr, &exid);
+ if (ret)
+ ret = at91_get_cidr_exid_from_chipid(&cidr, &exid);
+ if (ret) {
+ if (ret == -ENODEV)
+ pr_warn("Could not find identification node");
+ return NULL;
+ }
+
+ for (soc = socs; soc->name; soc++) {
+ if (soc->cidr_match != (cidr & AT91_CIDR_MATCH_MASK))
+ continue;
+
+ if (!(cidr & AT91_CIDR_EXT) || soc->exid_match == exid)
+ break;
+ }
+
+ if (!soc->name) {
+ pr_warn("Could not find matching SoC description\n");
+ return NULL;
+ }
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ return NULL;
+
+ soc_dev_attr->family = soc->family;
+ soc_dev_attr->soc_id = soc->name;
+ soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%X",
+ AT91_CIDR_VERSION(cidr));
+ soc_dev = soc_device_register(soc_dev_attr);
+ if (IS_ERR(soc_dev)) {
+ kfree(soc_dev_attr->revision);
+ kfree(soc_dev_attr);
+ pr_warn("Could not register SoC device\n");
+ return NULL;
+ }
+
+ if (soc->family)
+ pr_info("Detected SoC family: %s\n", soc->family);
+ pr_info("Detected SoC: %s, revision %X\n", soc->name,
+ AT91_CIDR_VERSION(cidr));
+
+ return soc_dev;
+}
+
+static int __init atmel_soc_device_init(void)
+{
+ at91_soc_init(socs);
+
+ return 0;
+}
+subsys_initcall(atmel_soc_device_init);
--- /dev/null
+/*
+ * Copyright (C) 2015 Atmel
+ *
+ * Boris Brezillon <boris.brezillon@free-electrons.com
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ *
+ */
+
+#ifndef __AT91_SOC_H
+#define __AT91_SOC_H
+
+#include <linux/sys_soc.h>
+
+struct at91_soc {
+ u32 cidr_match;
+ u32 exid_match;
+ const char *name;
+ const char *family;
+};
+
+#define AT91_SOC(__cidr, __exid, __name, __family) \
+ { \
+ .cidr_match = (__cidr), \
+ .exid_match = (__exid), \
+ .name = (__name), \
+ .family = (__family), \
+ }
+
+struct soc_device * __init
+at91_soc_init(const struct at91_soc *socs);
+
+#define AT91RM9200_CIDR_MATCH 0x09290780
+
+#define AT91SAM9260_CIDR_MATCH 0x019803a0
+#define AT91SAM9261_CIDR_MATCH 0x019703a0
+#define AT91SAM9263_CIDR_MATCH 0x019607a0
+#define AT91SAM9G20_CIDR_MATCH 0x019905a0
+#define AT91SAM9RL64_CIDR_MATCH 0x019b03a0
+#define AT91SAM9G45_CIDR_MATCH 0x019b05a0
+#define AT91SAM9X5_CIDR_MATCH 0x019a05a0
+#define AT91SAM9N12_CIDR_MATCH 0x019a07a0
+
+#define AT91SAM9M11_EXID_MATCH 0x00000001
+#define AT91SAM9M10_EXID_MATCH 0x00000002
+#define AT91SAM9G46_EXID_MATCH 0x00000003
+#define AT91SAM9G45_EXID_MATCH 0x00000004
+
+#define AT91SAM9G15_EXID_MATCH 0x00000000
+#define AT91SAM9G35_EXID_MATCH 0x00000001
+#define AT91SAM9X35_EXID_MATCH 0x00000002
+#define AT91SAM9G25_EXID_MATCH 0x00000003
+#define AT91SAM9X25_EXID_MATCH 0x00000004
+
+#define AT91SAM9CN12_EXID_MATCH 0x00000005
+#define AT91SAM9N12_EXID_MATCH 0x00000006
+#define AT91SAM9CN11_EXID_MATCH 0x00000009
+
+#define AT91SAM9XE128_CIDR_MATCH 0x329973a0
+#define AT91SAM9XE256_CIDR_MATCH 0x329a93a0
+#define AT91SAM9XE512_CIDR_MATCH 0x329aa3a0
+
+#define SAMA5D2_CIDR_MATCH 0x0a5c08c0
+#define SAMA5D21CU_EXID_MATCH 0x0000005a
+#define SAMA5D22CU_EXID_MATCH 0x00000059
+#define SAMA5D22CN_EXID_MATCH 0x00000069
+#define SAMA5D23CU_EXID_MATCH 0x00000058
+#define SAMA5D24CX_EXID_MATCH 0x00000004
+#define SAMA5D24CU_EXID_MATCH 0x00000014
+#define SAMA5D26CU_EXID_MATCH 0x00000012
+#define SAMA5D27CU_EXID_MATCH 0x00000011
+#define SAMA5D27CN_EXID_MATCH 0x00000021
+#define SAMA5D28CU_EXID_MATCH 0x00000010
+#define SAMA5D28CN_EXID_MATCH 0x00000020
+
+#define SAMA5D3_CIDR_MATCH 0x0a5c07c0
+#define SAMA5D31_EXID_MATCH 0x00444300
+#define SAMA5D33_EXID_MATCH 0x00414300
+#define SAMA5D34_EXID_MATCH 0x00414301
+#define SAMA5D35_EXID_MATCH 0x00584300
+#define SAMA5D36_EXID_MATCH 0x00004301
+
+#define SAMA5D4_CIDR_MATCH 0x0a5c07c0
+#define SAMA5D41_EXID_MATCH 0x00000001
+#define SAMA5D42_EXID_MATCH 0x00000002
+#define SAMA5D43_EXID_MATCH 0x00000003
+#define SAMA5D44_EXID_MATCH 0x00000004
+
+#endif /* __AT91_SOC_H */
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff