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-rw-r--r--arch/arm/mach-picoxcell/Kconfig7
-rw-r--r--arch/arm/mach-picoxcell/Makefile2
-rw-r--r--arch/arm/mach-picoxcell/Makefile.boot1
-rw-r--r--arch/arm/mach-picoxcell/common.c69
-rw-r--r--arch/arm/mach-picoxcell/common.h18
-rw-r--r--arch/arm/mach-picoxcell/include/mach/debug-macro.S35
-rw-r--r--arch/arm/mach-picoxcell/include/mach/entry-macro.S19
-rw-r--r--arch/arm/mach-picoxcell/include/mach/gpio.h1
-rw-r--r--arch/arm/mach-picoxcell/include/mach/hardware.h21
-rw-r--r--arch/arm/mach-picoxcell/include/mach/io.h22
-rw-r--r--arch/arm/mach-picoxcell/include/mach/irqs.h25
-rw-r--r--arch/arm/mach-picoxcell/include/mach/map.h25
-rw-r--r--arch/arm/mach-picoxcell/include/mach/memory.h1
-rw-r--r--arch/arm/mach-picoxcell/include/mach/picoxcell_soc.h25
-rw-r--r--arch/arm/mach-picoxcell/include/mach/system.h31
-rw-r--r--arch/arm/mach-picoxcell/include/mach/timex.h25
-rw-r--r--arch/arm/mach-picoxcell/include/mach/uncompress.h21
-rw-r--r--arch/arm/mach-picoxcell/include/mach/vmalloc.h14
-rw-r--r--arch/arm/mach-picoxcell/io.c32
-rw-r--r--arch/arm/mach-picoxcell/time.c132
20 files changed, 57 insertions, 469 deletions
diff --git a/arch/arm/mach-picoxcell/Kconfig b/arch/arm/mach-picoxcell/Kconfig
new file mode 100644
index 00000000000..62240f69b4e
--- /dev/null
+++ b/arch/arm/mach-picoxcell/Kconfig
@@ -0,0 +1,7 @@
+config ARCH_PICOXCELL
+ bool "Picochip PicoXcell" if ARCH_MULTI_V6
+ select ARCH_REQUIRE_GPIOLIB
+ select ARM_VIC
+ select DW_APB_TIMER_OF
+ select HAVE_TCM
+ select NO_IOPORT_MAP
diff --git a/arch/arm/mach-picoxcell/Makefile b/arch/arm/mach-picoxcell/Makefile
index c550b636348..8e39f80fce1 100644
--- a/arch/arm/mach-picoxcell/Makefile
+++ b/arch/arm/mach-picoxcell/Makefile
@@ -1,3 +1 @@
obj-y := common.o
-obj-y += time.o
-obj-y += io.o
diff --git a/arch/arm/mach-picoxcell/Makefile.boot b/arch/arm/mach-picoxcell/Makefile.boot
deleted file mode 100644
index b3271754e9f..00000000000
--- a/arch/arm/mach-picoxcell/Makefile.boot
+++ /dev/null
@@ -1 +0,0 @@
-zreladdr-y := 0x00008000
diff --git a/arch/arm/mach-picoxcell/common.c b/arch/arm/mach-picoxcell/common.c
index 34d08347be5..ec79fea8270 100644
--- a/arch/arm/mach-picoxcell/common.c
+++ b/arch/arm/mach-picoxcell/common.c
@@ -7,23 +7,55 @@
*
* All enquiries to support@picochip.com
*/
-#include <linux/irq.h>
-#include <linux/irqdomain.h>
+#include <linux/delay.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
+#include <linux/reboot.h>
#include <asm/mach/arch.h>
-#include <asm/hardware/vic.h>
+#include <asm/mach/map.h>
-#include <mach/map.h>
-#include <mach/picoxcell_soc.h>
+#define PHYS_TO_IO(x) (((x) & 0x00ffffff) | 0xfe000000)
+#define PICOXCELL_PERIPH_BASE 0x80000000
+#define PICOXCELL_PERIPH_LENGTH SZ_4M
-#include "common.h"
+#define WDT_CTRL_REG_EN_MASK (1 << 0)
+#define WDT_CTRL_REG_OFFS (0x00)
+#define WDT_TIMEOUT_REG_OFFS (0x04)
+static void __iomem *wdt_regs;
+
+/*
+ * The machine restart method can be called from an atomic context so we won't
+ * be able to ioremap the regs then.
+ */
+static void picoxcell_setup_restart(void)
+{
+ struct device_node *np = of_find_compatible_node(NULL, NULL,
+ "snps,dw-apb-wdg");
+ if (WARN(!np, "unable to setup watchdog restart"))
+ return;
+
+ wdt_regs = of_iomap(np, 0);
+ WARN(!wdt_regs, "failed to remap watchdog regs");
+}
+
+static struct map_desc io_map __initdata = {
+ .virtual = PHYS_TO_IO(PICOXCELL_PERIPH_BASE),
+ .pfn = __phys_to_pfn(PICOXCELL_PERIPH_BASE),
+ .length = PICOXCELL_PERIPH_LENGTH,
+ .type = MT_DEVICE,
+};
+
+static void __init picoxcell_map_io(void)
+{
+ iotable_init(&io_map, 1);
+}
static void __init picoxcell_init_machine(void)
{
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+ picoxcell_setup_restart();
}
static const char *picoxcell_dt_match[] = {
@@ -32,24 +64,23 @@ static const char *picoxcell_dt_match[] = {
NULL
};
-static const struct of_device_id vic_of_match[] __initconst = {
- { .compatible = "arm,pl192-vic" },
- { /* Sentinel */ }
-};
-
-static void __init picoxcell_init_irq(void)
+static void picoxcell_wdt_restart(enum reboot_mode mode, const char *cmd)
{
- vic_init(IO_ADDRESS(PICOXCELL_VIC0_BASE), 0, ~0, 0);
- vic_init(IO_ADDRESS(PICOXCELL_VIC1_BASE), 32, ~0, 0);
- irq_domain_generate_simple(vic_of_match, PICOXCELL_VIC0_BASE, 0);
- irq_domain_generate_simple(vic_of_match, PICOXCELL_VIC1_BASE, 32);
+ /*
+ * Configure the watchdog to reset with the shortest possible timeout
+ * and give it chance to do the reset.
+ */
+ if (wdt_regs) {
+ writel_relaxed(WDT_CTRL_REG_EN_MASK, wdt_regs + WDT_CTRL_REG_OFFS);
+ writel_relaxed(0, wdt_regs + WDT_TIMEOUT_REG_OFFS);
+ /* No sleeping, possibly atomic. */
+ mdelay(500);
+ }
}
DT_MACHINE_START(PICOXCELL, "Picochip picoXcell")
.map_io = picoxcell_map_io,
- .nr_irqs = ARCH_NR_IRQS,
- .init_irq = picoxcell_init_irq,
- .timer = &picoxcell_timer,
.init_machine = picoxcell_init_machine,
.dt_compat = picoxcell_dt_match,
+ .restart = picoxcell_wdt_restart,
MACHINE_END
diff --git a/arch/arm/mach-picoxcell/common.h b/arch/arm/mach-picoxcell/common.h
deleted file mode 100644
index 5263f0fa095..00000000000
--- a/arch/arm/mach-picoxcell/common.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * 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.
- *
- * All enquiries to support@picochip.com
- */
-#ifndef __PICOXCELL_COMMON_H__
-#define __PICOXCELL_COMMON_H__
-
-#include <asm/mach/time.h>
-
-extern struct sys_timer picoxcell_timer;
-extern void picoxcell_map_io(void);
-
-#endif /* __PICOXCELL_COMMON_H__ */
diff --git a/arch/arm/mach-picoxcell/include/mach/debug-macro.S b/arch/arm/mach-picoxcell/include/mach/debug-macro.S
deleted file mode 100644
index 8f2c234ed9d..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/debug-macro.S
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * 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.
- *
- * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit
- * accesses to the 8250.
- */
-#include <linux/serial_reg.h>
-#include <mach/hardware.h>
-#include <mach/map.h>
-
-#define UART_SHIFT 2
-
- .macro addruart, rp, rv
- ldr \rv, =PHYS_TO_IO(PICOXCELL_UART1_BASE)
- ldr \rp, =PICOXCELL_UART1_BASE
- .endm
-
- .macro senduart,rd,rx
- str \rd, [\rx, #UART_TX << UART_SHIFT]
- .endm
-
- .macro busyuart,rd,rx
-1002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT]
- and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
- teq \rd, #UART_LSR_TEMT | UART_LSR_THRE
- bne 1002b
- .endm
-
- /* The UART's don't have any flow control IO's wired up. */
- .macro waituart,rd,rx
- .endm
diff --git a/arch/arm/mach-picoxcell/include/mach/entry-macro.S b/arch/arm/mach-picoxcell/include/mach/entry-macro.S
deleted file mode 100644
index a6b09f75d9d..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/entry-macro.S
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * entry-macro.S
- *
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * Low-level IRQ helper macros for picoXcell platforms
- *
- * 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.
- */
-#include <mach/hardware.h>
-#include <mach/irqs.h>
-#include <mach/map.h>
-
-#define VA_VIC0 IO_ADDRESS(PICOXCELL_VIC0_BASE)
-#define VA_VIC1 IO_ADDRESS(PICOXCELL_VIC1_BASE)
-
-#include <asm/entry-macro-vic2.S>
diff --git a/arch/arm/mach-picoxcell/include/mach/gpio.h b/arch/arm/mach-picoxcell/include/mach/gpio.h
deleted file mode 100644
index 40a8c178f10..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/gpio.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-picoxcell/include/mach/hardware.h b/arch/arm/mach-picoxcell/include/mach/hardware.h
deleted file mode 100644
index 70ff58192ec..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/hardware.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * This file contains the hardware definitions of the picoXcell SoC devices.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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_ARCH_HARDWARE_H
-#define __ASM_ARCH_HARDWARE_H
-
-#include <mach/picoxcell_soc.h>
-
-#endif
diff --git a/arch/arm/mach-picoxcell/include/mach/io.h b/arch/arm/mach-picoxcell/include/mach/io.h
deleted file mode 100644
index 7573ec7d10a..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/io.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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_ARM_ARCH_IO_H
-#define __ASM_ARM_ARCH_IO_H
-
-/* No ioports, but needed for driver compatibility. */
-#define __io(a) __typesafe_io(a)
-/* No PCI possible on picoxcell. */
-#define __mem_pci(a) (a)
-
-#endif /* __ASM_ARM_ARCH_IO_H */
diff --git a/arch/arm/mach-picoxcell/include/mach/irqs.h b/arch/arm/mach-picoxcell/include/mach/irqs.h
deleted file mode 100644
index 4d13ed97091..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/irqs.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * This file contains the hardware definitions of the picoXcell SoC devices.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 __MACH_IRQS_H
-#define __MACH_IRQS_H
-
-#define ARCH_NR_IRQS 64
-#define NR_IRQS (128 + ARCH_NR_IRQS)
-
-#define IRQ_VIC0_BASE 0
-#define IRQ_VIC1_BASE 32
-
-#endif /* __MACH_IRQS_H */
diff --git a/arch/arm/mach-picoxcell/include/mach/map.h b/arch/arm/mach-picoxcell/include/mach/map.h
deleted file mode 100644
index c06afad218b..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/map.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 __PICOXCELL_MAP_H__
-#define __PICOXCELL_MAP_H__
-
-#define PHYS_TO_IO(x) (((x) & 0x00ffffff) | 0xfe000000)
-
-#ifdef __ASSEMBLY__
-#define IO_ADDRESS(x) PHYS_TO_IO((x))
-#else
-#define IO_ADDRESS(x) (void __iomem __force *)(PHYS_TO_IO((x)))
-#endif
-
-#endif /* __PICOXCELL_MAP_H__ */
diff --git a/arch/arm/mach-picoxcell/include/mach/memory.h b/arch/arm/mach-picoxcell/include/mach/memory.h
deleted file mode 100644
index 40a8c178f10..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/memory.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-picoxcell/include/mach/picoxcell_soc.h b/arch/arm/mach-picoxcell/include/mach/picoxcell_soc.h
deleted file mode 100644
index 5566fc88ddb..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/picoxcell_soc.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * This file contains the hardware definitions of the picoXcell SoC devices.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 __PICOXCELL_SOC_H__
-#define __PICOXCELL_SOC_H__
-
-#define PICOXCELL_UART1_BASE 0x80230000
-#define PICOXCELL_PERIPH_BASE 0x80000000
-#define PICOXCELL_PERIPH_LENGTH SZ_4M
-#define PICOXCELL_VIC0_BASE 0x80060000
-#define PICOXCELL_VIC1_BASE 0x80064000
-
-#endif /* __PICOXCELL_SOC_H__ */
diff --git a/arch/arm/mach-picoxcell/include/mach/system.h b/arch/arm/mach-picoxcell/include/mach/system.h
deleted file mode 100644
index 67c589b0c1b..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/system.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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_ARCH_SYSTEM_H
-#define __ASM_ARCH_SYSTEM_H
-
-static inline void arch_idle(void)
-{
- /*
- * This should do all the clock switching and wait for interrupt
- * tricks.
- */
- cpu_do_idle();
-}
-
-static inline void arch_reset(int mode, const char *cmd)
-{
- /* Watchdog reset to go here. */
-}
-
-#endif /* __ASM_ARCH_SYSTEM_H */
diff --git a/arch/arm/mach-picoxcell/include/mach/timex.h b/arch/arm/mach-picoxcell/include/mach/timex.h
deleted file mode 100644
index 6c540a69f40..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/timex.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#ifndef __TIMEX_H__
-#define __TIMEX_H__
-
-/* Bogus value to allow the kernel to compile. */
-#define CLOCK_TICK_RATE 1000000
-
-#endif /* __TIMEX_H__ */
-
diff --git a/arch/arm/mach-picoxcell/include/mach/uncompress.h b/arch/arm/mach-picoxcell/include/mach/uncompress.h
deleted file mode 100644
index b60b19d1d73..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/uncompress.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#define putc(c)
-#define flush()
-#define arch_decomp_setup()
-#define arch_decomp_wdog()
diff --git a/arch/arm/mach-picoxcell/include/mach/vmalloc.h b/arch/arm/mach-picoxcell/include/mach/vmalloc.h
deleted file mode 100644
index 0216cc4b1f0..00000000000
--- a/arch/arm/mach-picoxcell/include/mach/vmalloc.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- */
-#define VMALLOC_END 0xfe000000UL
diff --git a/arch/arm/mach-picoxcell/io.c b/arch/arm/mach-picoxcell/io.c
deleted file mode 100644
index 39e9b9e8cc3..00000000000
--- a/arch/arm/mach-picoxcell/io.c
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * 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.
- *
- * All enquiries to support@picochip.com
- */
-#include <linux/io.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/of.h>
-
-#include <asm/mach/map.h>
-
-#include <mach/map.h>
-#include <mach/picoxcell_soc.h>
-
-#include "common.h"
-
-void __init picoxcell_map_io(void)
-{
- struct map_desc io_map = {
- .virtual = PHYS_TO_IO(PICOXCELL_PERIPH_BASE),
- .pfn = __phys_to_pfn(PICOXCELL_PERIPH_BASE),
- .length = PICOXCELL_PERIPH_LENGTH,
- .type = MT_DEVICE,
- };
-
- iotable_init(&io_map, 1);
-}
diff --git a/arch/arm/mach-picoxcell/time.c b/arch/arm/mach-picoxcell/time.c
deleted file mode 100644
index 90a554ff449..00000000000
--- a/arch/arm/mach-picoxcell/time.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * 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.
- *
- * All enquiries to support@picochip.com
- */
-#include <linux/dw_apb_timer.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/sched.h>
-
-#include <asm/mach/time.h>
-#include <asm/sched_clock.h>
-
-#include "common.h"
-
-static void timer_get_base_and_rate(struct device_node *np,
- void __iomem **base, u32 *rate)
-{
- *base = of_iomap(np, 0);
-
- if (!*base)
- panic("Unable to map regs for %s", np->name);
-
- if (of_property_read_u32(np, "clock-freq", rate))
- panic("No clock-freq property for %s", np->name);
-}
-
-static void picoxcell_add_clockevent(struct device_node *event_timer)
-{
- void __iomem *iobase;
- struct dw_apb_clock_event_device *ced;
- u32 irq, rate;
-
- irq = irq_of_parse_and_map(event_timer, 0);
- if (irq == NO_IRQ)
- panic("No IRQ for clock event timer");
-
- timer_get_base_and_rate(event_timer, &iobase, &rate);
-
- ced = dw_apb_clockevent_init(0, event_timer->name, 300, iobase, irq,
- rate);
- if (!ced)
- panic("Unable to initialise clockevent device");
-
- dw_apb_clockevent_register(ced);
-}
-
-static void picoxcell_add_clocksource(struct device_node *source_timer)
-{
- void __iomem *iobase;
- struct dw_apb_clocksource *cs;
- u32 rate;
-
- timer_get_base_and_rate(source_timer, &iobase, &rate);
-
- cs = dw_apb_clocksource_init(300, source_timer->name, iobase, rate);
- if (!cs)
- panic("Unable to initialise clocksource device");
-
- dw_apb_clocksource_start(cs);
- dw_apb_clocksource_register(cs);
-}
-
-static DEFINE_CLOCK_DATA(cd);
-static void __iomem *sched_io_base;
-
-unsigned long long notrace sched_clock(void)
-{
- cycle_t cyc = sched_io_base ? __raw_readl(sched_io_base) : 0;
-
- return cyc_to_sched_clock(&cd, cyc, (u32)~0);
-}
-
-static void notrace picoxcell_update_sched_clock(void)
-{
- cycle_t cyc = sched_io_base ? __raw_readl(sched_io_base) : 0;
-
- update_sched_clock(&cd, cyc, (u32)~0);
-}
-
-static const struct of_device_id picoxcell_rtc_ids[] __initconst = {
- { .compatible = "picochip,pc3x2-rtc" },
- { /* Sentinel */ },
-};
-
-static void picoxcell_init_sched_clock(void)
-{
- struct device_node *sched_timer;
- u32 rate;
-
- sched_timer = of_find_matching_node(NULL, picoxcell_rtc_ids);
- if (!sched_timer)
- panic("No RTC for sched clock to use");
-
- timer_get_base_and_rate(sched_timer, &sched_io_base, &rate);
- of_node_put(sched_timer);
-
- init_sched_clock(&cd, picoxcell_update_sched_clock, 32, rate);
-}
-
-static const struct of_device_id picoxcell_timer_ids[] __initconst = {
- { .compatible = "picochip,pc3x2-timer" },
- {},
-};
-
-static void __init picoxcell_timer_init(void)
-{
- struct device_node *event_timer, *source_timer;
-
- event_timer = of_find_matching_node(NULL, picoxcell_timer_ids);
- if (!event_timer)
- panic("No timer for clockevent");
- picoxcell_add_clockevent(event_timer);
-
- source_timer = of_find_matching_node(event_timer, picoxcell_timer_ids);
- if (!source_timer)
- panic("No timer for clocksource");
- picoxcell_add_clocksource(source_timer);
-
- of_node_put(source_timer);
-
- picoxcell_init_sched_clock();
-}
-
-struct sys_timer picoxcell_timer = {
- .init = picoxcell_timer_init,
-};