help
This enables support for systems based on the Hynix HMS720x
+config ARCH_NOMADIK
+ bool "STMicroelectronics Nomadik"
+ select ARM_AMBA
+ select ARM_VIC
+ select CPU_ARM926T
+ select HAVE_CLK
+ select COMMON_CLKDEV
+ select GENERIC_TIME
+ select GENERIC_CLOCKEVENTS
+
+ help
+ Support for the Nomadik platform by ST-Ericsson
+
config ARCH_IOP13XX
bool "IOP13xx-based"
depends on MMU
source "arch/arm/plat-mxc/Kconfig"
+source "arch/arm/mach-nomadik/Kconfig"
+
source "arch/arm/mach-netx/Kconfig"
source "arch/arm/mach-ns9xxx/Kconfig"
machine-$(CONFIG_ARCH_MX2) := mx2
machine-$(CONFIG_ARCH_MX3) := mx3
machine-$(CONFIG_ARCH_NETX) := netx
+machine-$(CONFIG_ARCH_NOMADIK) := nomadik
machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx
machine-$(CONFIG_ARCH_OMAP1) := omap1
machine-$(CONFIG_ARCH_OMAP2) := omap2
--- /dev/null
+if ARCH_NOMADIK
+
+menu "Nomadik boards"
+
+config MACH_NOMADIK_8815NHK
+ bool "ST 8815 Nomadik Hardware Kit (evaluation board)"
+ select NOMADIK_8815
+
+endmenu
+
+config NOMADIK_8815
+ bool
+
+endif
--- /dev/null
+#
+# Makefile for the linux kernel.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+
+# Object file lists.
+
+obj-y += clock.o timer.o
+
+# Cpu revision
+obj-$(CONFIG_NOMADIK_8815) += cpu-8815.o
+
+# Specific board support
+obj-$(CONFIG_MACH_NOMADIK_8815NHK) += board-nhk8815.o
--- /dev/null
+ zreladdr-y := 0x00008000
+params_phys-y := 0x00000100
+initrd_phys-y := 0x00800000
+
--- /dev/null
+/*
+ * linux/arch/arm/mach-nomadik/board-8815nhk.c
+ *
+ * Copyright (C) STMicroelectronics
+ *
+ * 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.
+ *
+ * NHK15 board specifc driver definition
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/amba/bus.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/irq.h>
+#include <mach/setup.h>
+#include "clock.h"
+
+#define __MEM_4K_RESOURCE(x) \
+ .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM}
+
+static struct amba_device uart0_device = {
+ .dev = { .init_name = "uart0" },
+ __MEM_4K_RESOURCE(NOMADIK_UART0_BASE),
+ .irq = {IRQ_UART0, NO_IRQ},
+};
+
+static struct amba_device uart1_device = {
+ .dev = { .init_name = "uart1" },
+ __MEM_4K_RESOURCE(NOMADIK_UART1_BASE),
+ .irq = {IRQ_UART1, NO_IRQ},
+};
+
+static struct amba_device *amba_devs[] __initdata = {
+ &uart0_device,
+ &uart1_device,
+};
+
+/* We have a fixed clock alone, by now */
+static struct clk nhk8815_clk_48 = {
+ .rate = 48*1000*1000,
+};
+
+static struct platform_device *nhk8815_platform_devices[] __initdata = {
+ /* currently empty, will add keypad, touchscreen etc */
+};
+
+static void __init nhk8815_platform_init(void)
+{
+ int i;
+
+ cpu8815_platform_init();
+ platform_add_devices(nhk8815_platform_devices,
+ ARRAY_SIZE(nhk8815_platform_devices));
+
+ for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
+ nmdk_clk_create(&nhk8815_clk_48, amba_devs[i]->dev.init_name);
+ amba_device_register(amba_devs[i], &iomem_resource);
+ }
+}
+
+MACHINE_START(NOMADIK, "NHK8815")
+ /* Maintainer: ST MicroElectronics */
+ .phys_io = NOMADIK_UART0_BASE,
+ .io_pg_offst = (IO_ADDRESS(NOMADIK_UART0_BASE) >> 18) & 0xfffc,
+ .boot_params = 0x100,
+ .map_io = cpu8815_map_io,
+ .init_irq = cpu8815_init_irq,
+ .timer = &nomadik_timer,
+ .init_machine = nhk8815_platform_init,
+MACHINE_END
--- /dev/null
+/*
+ * linux/arch/arm/mach-nomadik/clock.c
+ *
+ * Copyright (C) 2009 Alessandro Rubini
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <asm/clkdev.h>
+#include "clock.h"
+
+/*
+ * The nomadik board uses generic clocks, but the serial pl011 file
+ * calls clk_enable(), clk_disable(), clk_get_rate(), so we provide them
+ */
+unsigned long clk_get_rate(struct clk *clk)
+{
+ return clk->rate;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+/* enable and disable do nothing */
+int clk_enable(struct clk *clk)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+/* Create a clock structure with the given name */
+int nmdk_clk_create(struct clk *clk, const char *dev_id)
+{
+ struct clk_lookup *clkdev;
+
+ clkdev = clkdev_alloc(clk, NULL, dev_id);
+ if (!clkdev)
+ return -ENOMEM;
+ clkdev_add(clkdev);
+ return 0;
+}
--- /dev/null
+
+/*
+ * linux/arch/arm/mach-nomadik/clock.h
+ *
+ * Copyright (C) 2009 Alessandro Rubini
+ *
+ * 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.
+ */
+struct clk {
+ unsigned long rate;
+};
+extern int nmdk_clk_create(struct clk *clk, const char *dev_id);
--- /dev/null
+/*
+ * Copyright STMicroelectronics, 2007.
+ *
+ * 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
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/device.h>
+
+#include <mach/hardware.h>
+#include <mach/irqs.h>
+#include <asm/mach/map.h>
+#include <asm/hardware/vic.h>
+
+/* All SoC devices live in the same area (see hardware.h) */
+static struct map_desc nomadik_io_desc[] __initdata = {
+ {
+ .virtual = NOMADIK_IO_VIRTUAL,
+ .pfn = __phys_to_pfn(NOMADIK_IO_PHYSICAL),
+ .length = NOMADIK_IO_SIZE,
+ .type = MT_DEVICE,
+ }
+ /* static ram and secured ram may be added later */
+};
+
+void __init cpu8815_map_io(void)
+{
+ iotable_init(nomadik_io_desc, ARRAY_SIZE(nomadik_io_desc));
+}
+
+void __init cpu8815_init_irq(void)
+{
+ /* This modified VIC cell has two register blocks, at 0 and 0x20 */
+ vic_init(io_p2v(NOMADIK_IC_BASE + 0x00), IRQ_VIC_START + 0, ~0, 0);
+ vic_init(io_p2v(NOMADIK_IC_BASE + 0x20), IRQ_VIC_START + 32, ~0, 0);
+}
+
+/*
+ * This function is called from the board init ("init_machine").
+ * Currently nothing is done as we can't register amba devs so early.
+ */
+ void __init cpu8815_platform_init(void)
+{
+ return;
+}
--- /dev/null
+#ifndef __ASM_MACH_CLKDEV_H
+#define __ASM_MACH_CLKDEV_H
+
+#define __clk_get(clk) ({ 1; })
+#define __clk_put(clk) do { } while (0)
+
+#endif
--- /dev/null
+/*
+ * Debugging macro include header
+ *
+ * Copyright (C) 1994-1999 Russell King
+ * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
+ *
+ * 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.
+ *
+*/
+
+ .macro addruart,rx
+ mrc p15, 0, \rx, c1, c0
+ tst \rx, #1 @ MMU enabled?
+ moveq \rx, #0x10000000 @ physical base address
+ movne \rx, #0xf0000000 @ virtual base
+ add \rx, \rx, #0x00100000
+ add \rx, \rx, #0x000fb000
+ .endm
+
+#include <asm/hardware/debug-pl01x.S>
--- /dev/null
+/*
+ * Low-level IRQ helper macros for Nomadik 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>
+
+ .macro disable_fiq
+ .endm
+
+ .macro get_irqnr_preamble, base, tmp
+ ldr \base, =IO_ADDRESS(NOMADIK_IC_BASE)
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+
+ /* This stanza gets the irq mask from one of two status registers */
+ mov \irqnr, #0
+ ldr \irqstat, [\base, #VIC_REG_IRQSR0] @ get masked status
+ cmp \irqstat, #0
+ bne 1001f
+ add \irqnr, \irqnr, #32
+ ldr \irqstat, [\base, #VIC_REG_IRQSR1] @ get masked status
+
+1001: tst \irqstat, #15
+ bne 1002f
+ add \irqnr, \irqnr, #4
+ movs \irqstat, \irqstat, lsr #4
+ bne 1001b
+1002: tst \irqstat, #1
+ bne 1003f
+ add \irqnr, \irqnr, #1
+ movs \irqstat, \irqstat, lsr #1
+ bne 1002b
+1003: /* EQ will be set if no irqs pending */
+ .endm
--- /dev/null
+/*
+ * This file contains the hardware definitions of the Nomadik.
+ *
+ * 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 __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+/* Nomadik registers live from 0x1000.0000 to 0x1023.0000 -- currently */
+#define NOMADIK_IO_VIRTUAL 0xF0000000 /* VA of IO */
+#define NOMADIK_IO_PHYSICAL 0x10000000 /* PA of IO */
+#define NOMADIK_IO_SIZE 0x00300000 /* 3MB for all regs */
+
+/* used in C code, so cast to proper type */
+#define io_p2v(x) ((void __iomem *)(x) \
+ - NOMADIK_IO_PHYSICAL + NOMADIK_IO_VIRTUAL)
+#define io_v2p(x) ((unsigned long)(x) \
+ - NOMADIK_IO_VIRTUAL + NOMADIK_IO_PHYSICAL)
+
+/* used in asm code, so no casts */
+#define IO_ADDRESS(x) ((x) - NOMADIK_IO_PHYSICAL + NOMADIK_IO_VIRTUAL)
+
+/*
+ * Base address defination for Nomadik Onchip Logic Block
+ */
+#define NOMADIK_FSMC_BASE 0x10100000 /* FSMC registers */
+#define NOMADIK_SDRAMC_BASE 0x10110000 /* SDRAM Controller */
+#define NOMADIK_CLCDC_BASE 0x10120000 /* CLCD Controller */
+#define NOMADIK_MDIF_BASE 0x10120000 /* MDIF */
+#define NOMADIK_DMA0_BASE 0x10130000 /* DMA0 Controller */
+#define NOMADIK_IC_BASE 0x10140000 /* Vectored Irq Controller */
+#define NOMADIK_DMA1_BASE 0x10150000 /* DMA1 Controller */
+#define NOMADIK_USB_BASE 0x10170000 /* USB-OTG conf reg base */
+#define NOMADIK_CRYP_BASE 0x10180000 /* Crypto processor */
+#define NOMADIK_SHA1_BASE 0x10190000 /* SHA-1 Processor */
+#define NOMADIK_XTI_BASE 0x101A0000 /* XTI */
+#define NOMADIK_RNG_BASE 0x101B0000 /* Random number generator */
+#define NOMADIK_SRC_BASE 0x101E0000 /* SRC base */
+#define NOMADIK_WDOG_BASE 0x101E1000 /* Watchdog */
+#define NOMADIK_MTU0_BASE 0x101E2000 /* Multiple Timer 0 */
+#define NOMADIK_MTU1_BASE 0x101E3000 /* Multiple Timer 1 */
+#define NOMADIK_GPIO0_BASE 0x101E4000 /* GPIO0 */
+#define NOMADIK_GPIO1_BASE 0x101E5000 /* GPIO1 */
+#define NOMADIK_GPIO2_BASE 0x101E6000 /* GPIO2 */
+#define NOMADIK_GPIO3_BASE 0x101E7000 /* GPIO3 */
+#define NOMADIK_RTC_BASE 0x101E8000 /* Real Time Clock base */
+#define NOMADIK_PMU_BASE 0x101E9000 /* Power Management Unit */
+#define NOMADIK_OWM_BASE 0x101EA000 /* One wire master */
+#define NOMADIK_SCR_BASE 0x101EF000 /* Secure Control registers */
+#define NOMADIK_MSP2_BASE 0x101F0000 /* MSP 2 interface */
+#define NOMADIK_MSP1_BASE 0x101F1000 /* MSP 1 interface */
+#define NOMADIK_UART2_BASE 0x101F2000 /* UART 2 interface */
+#define NOMADIK_SSIRx_BASE 0x101F3000 /* SSI 8-ch rx interface */
+#define NOMADIK_SSITx_BASE 0x101F4000 /* SSI 8-ch tx interface */
+#define NOMADIK_MSHC_BASE 0x101F5000 /* Memory Stick(Pro) Host */
+#define NOMADIK_SDI_BASE 0x101F6000 /* SD-card/MM-Card */
+#define NOMADIK_I2C1_BASE 0x101F7000 /* I2C1 interface */
+#define NOMADIK_I2C0_BASE 0x101F8000 /* I2C0 interface */
+#define NOMADIK_MSP0_BASE 0x101F9000 /* MSP 0 interface */
+#define NOMADIK_FIRDA_BASE 0x101FA000 /* FIrDA interface */
+#define NOMADIK_UART1_BASE 0x101FB000 /* UART 1 interface */
+#define NOMADIK_SSP_BASE 0x101FC000 /* SSP interface */
+#define NOMADIK_UART0_BASE 0x101FD000 /* UART 0 interface */
+#define NOMADIK_SGA_BASE 0x101FE000 /* SGA interface */
+#define NOMADIK_L2CC_BASE 0x10210000 /* L2 Cache controller */
+
+/* Other ranges, not for p2v/v2p */
+#define NOMADIK_BACKUP_RAM 0x80010000
+#define NOMADIK_EBROM 0x80000000 /* Embedded boot ROM */
+#define NOMADIK_HAMACV_DMEM_BASE 0xA0100000 /* HAMACV Data Memory Start */
+#define NOMADIK_HAMACV_DMEM_END 0xA01FFFFF /* HAMACV Data Memory End */
+#define NOMADIK_HAMACA_DMEM 0xA0200000 /* HAMACA Data Memory Space */
+
+#define NOMADIK_FSMC_VA IO_ADDRESS(NOMADIK_FSMC_BASE)
+#define NOMADIK_MTU0_VA IO_ADDRESS(NOMADIK_MTU0_BASE)
+#define NOMADIK_MTU1_VA IO_ADDRESS(NOMADIK_MTU1_BASE)
+
+#endif /* __ASM_ARCH_HARDWARE_H */
--- /dev/null
+/*
+ * arch/arm/mach-nomadik/include/mach/io.h (copied from mach-sa1100)
+ *
+ * Copyright (C) 1997-1999 Russell King
+ *
+ * Modifications:
+ * 06-12-1997 RMK Created.
+ * 07-04-1999 RMK Major cleanup
+ */
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/*
+ * We don't actually have real ISA nor PCI buses, but there is so many
+ * drivers out there that might just work if we fake them...
+ */
+#define __io(a) __typesafe_io(a)
+#define __mem_pci(a) (a)
+
+#endif
--- /dev/null
+/*
+ * mach-nomadik/include/mach/irqs.h
+ *
+ * Copyright (C) ST Microelectronics
+ *
+ * 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 __ASM_ARCH_IRQS_H
+#define __ASM_ARCH_IRQS_H
+
+#include <mach/hardware.h>
+
+#define IRQ_VIC_START 0 /* first VIC interrupt is 0 */
+
+/*
+ * Interrupt numbers generic for all Nomadik Chip cuts
+ */
+#define IRQ_WATCHDOG 0
+#define IRQ_SOFTINT 1
+#define IRQ_CRYPTO 2
+#define IRQ_OWM 3
+#define IRQ_MTU0 4
+#define IRQ_MTU1 5
+#define IRQ_GPIO0 6
+#define IRQ_GPIO1 7
+#define IRQ_GPIO2 8
+#define IRQ_GPIO3 9
+#define IRQ_RTC_RTT 10
+#define IRQ_SSP 11
+#define IRQ_UART0 12
+#define IRQ_DMA1 13
+#define IRQ_CLCD_MDIF 14
+#define IRQ_DMA0 15
+#define IRQ_PWRFAIL 16
+#define IRQ_UART1 17
+#define IRQ_FIRDA 18
+#define IRQ_MSP0 19
+#define IRQ_I2C0 20
+#define IRQ_I2C1 21
+#define IRQ_SDMMC 22
+#define IRQ_USBOTG 23
+#define IRQ_SVA_IT0 24
+#define IRQ_SVA_IT1 25
+#define IRQ_SAA_IT0 26
+#define IRQ_SAA_IT1 27
+#define IRQ_UART2 28
+#define IRQ_MSP2 31
+#define IRQ_L2CC 48
+#define IRQ_HPI 49
+#define IRQ_SKE 50
+#define IRQ_KP 51
+#define IRQ_MEMST 54
+#define IRQ_SGA_IT 58
+#define IRQ_USBM 60
+#define IRQ_MSP1 62
+
+#define NOMADIK_SOC_NR_IRQS 64
+
+/* After chip-specific IRQ numbers we have the GPIO ones */
+#define NOMADIK_NR_GPIO 128 /* last 4 not wired to pins */
+#define NOMADIK_GPIO_TO_IRQ(gpio) ((gpio) + NOMADIK_SOC_NR_IRQS)
+#define NOMADIK_IRQ_TO_GPIO(irq) ((irq) - NOMADIK_SOC_NR_IRQS)
+#define NR_IRQS NOMADIK_GPIO_TO_IRQ(NOMADIK_NR_GPIO)
+
+/* Following two are used by entry_macro.S, to access our dual-vic */
+#define VIC_REG_IRQSR0 0
+#define VIC_REG_IRQSR1 0x20
+
+#endif /* __ASM_ARCH_IRQS_H */
+
--- /dev/null
+/*
+ * mach-nomadik/include/mach/memory.h
+ *
+ * Copyright (C) 1999 ARM Limited
+ *
+ * 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 __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+/*
+ * Physical DRAM offset.
+ */
+#define PHYS_OFFSET UL(0x00000000)
+
+#endif
--- /dev/null
+#ifndef __ASM_ARCH_MTU_H
+#define __ASM_ARCH_MTU_H
+
+/*
+ * The MTU device hosts four different counters, with 4 set of
+ * registers. These are register names.
+ */
+
+#define MTU_IMSC 0x00 /* Interrupt mask set/clear */
+#define MTU_RIS 0x04 /* Raw interrupt status */
+#define MTU_MIS 0x08 /* Masked interrupt status */
+#define MTU_ICR 0x0C /* Interrupt clear register */
+
+/* per-timer registers take 0..3 as argument */
+#define MTU_LR(x) (0x10 + 0x10 * (x) + 0x00) /* Load value */
+#define MTU_VAL(x) (0x10 + 0x10 * (x) + 0x04) /* Current value */
+#define MTU_CR(x) (0x10 + 0x10 * (x) + 0x08) /* Control reg */
+#define MTU_BGLR(x) (0x10 + 0x10 * (x) + 0x0c) /* At next overflow */
+
+/* bits for the control register */
+#define MTU_CRn_ENA 0x80
+#define MTU_CRn_PERIODIC 0x40 /* if 0 = free-running */
+#define MTU_CRn_PRESCALE_MASK 0x0c
+#define MTU_CRn_PRESCALE_1 0x00
+#define MTU_CRn_PRESCALE_16 0x04
+#define MTU_CRn_PRESCALE_256 0x08
+#define MTU_CRn_32BITS 0x02
+#define MTU_CRn_ONESHOT 0x01 /* if 0 = wraps reloading from BGLR*/
+
+/* Other registers are usual amba/primecell registers, currently not used */
+#define MTU_ITCR 0xff0
+#define MTU_ITOP 0xff4
+
+#define MTU_PERIPH_ID0 0xfe0
+#define MTU_PERIPH_ID1 0xfe4
+#define MTU_PERIPH_ID2 0xfe8
+#define MTU_PERIPH_ID3 0xfeC
+
+#define MTU_PCELL0 0xff0
+#define MTU_PCELL1 0xff4
+#define MTU_PCELL2 0xff8
+#define MTU_PCELL3 0xffC
+
+#endif /* __ASM_ARCH_MTU_H */
+
--- /dev/null
+
+/*
+ * These symbols are needed for board-specific files to call their
+ * own cpu-specific files
+ */
+
+#ifndef __ASM_ARCH_SETUP_H
+#define __ASM_ARCH_SETUP_H
+
+#include <asm/mach/time.h>
+#include <linux/init.h>
+
+#ifdef CONFIG_NOMADIK_8815
+
+extern void cpu8815_map_io(void);
+extern void cpu8815_platform_init(void);
+extern void cpu8815_init_irq(void);
+extern struct sys_timer nomadik_timer;
+
+#endif /* NOMADIK_8815 */
+
+#endif /* __ASM_ARCH_SETUP_H */
--- /dev/null
+/*
+ * mach-nomadik/include/mach/system.h
+ *
+ * Copyright (C) 2008 STMicroelectronics
+ *
+ * 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 __ASM_ARCH_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H
+
+#include <linux/io.h>
+#include <mach/hardware.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(char mode, const char *cmd)
+{
+ void __iomem *src_rstsr = io_p2v(NOMADIK_SRC_BASE + 0x18);
+
+ /* FIXME: use egpio when implemented */
+
+ /* Write anything to Reset status register */
+ writel(1, src_rstsr);
+}
+
+#endif
--- /dev/null
+#ifndef __ASM_ARCH_TIMEX_H
+#define __ASM_ARCH_TIMEX_H
+
+#define CLOCK_TICK_RATE 2400000
+
+#endif
--- /dev/null
+/*
+ * Copyright (C) 2008 STMicroelectronics
+ *
+ * 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 __ASM_ARCH_UNCOMPRESS_H
+#define __ASM_ARCH_UNCOMPRESS_H
+
+#include <asm/setup.h>
+#include <asm/io.h>
+#include <mach/hardware.h>
+
+/* we need the constants in amba/serial.h, but it refers to amba_device */
+struct amba_device;
+#include <linux/amba/serial.h>
+
+#define NOMADIK_UART_DR 0x101FB000
+#define NOMADIK_UART_LCRH 0x101FB02c
+#define NOMADIK_UART_CR 0x101FB030
+#define NOMADIK_UART_FR 0x101FB018
+
+static void putc(const char c)
+{
+ /* Do nothing if the UART is not enabled. */
+ if (!(readb(NOMADIK_UART_CR) & UART01x_CR_UARTEN))
+ return;
+
+ if (c == '\n')
+ putc('\r');
+
+ while (readb(NOMADIK_UART_FR) & UART01x_FR_TXFF)
+ barrier();
+ writeb(c, NOMADIK_UART_DR);
+}
+
+static void flush(void)
+{
+ if (!(readb(NOMADIK_UART_CR) & UART01x_CR_UARTEN))
+ return;
+ while (readb(NOMADIK_UART_FR) & UART01x_FR_BUSY)
+ barrier();
+}
+
+static inline void arch_decomp_setup(void)
+{
+}
+
+#define arch_decomp_wdog() /* nothing to do here */
+
+#endif /* __ASM_ARCH_UNCOMPRESS_H */
--- /dev/null
+
+#define VMALLOC_END 0xe8000000
--- /dev/null
+/*
+ * linux/arch/arm/mach-nomadik/timer.c
+ *
+ * Copyright (C) 2008 STMicroelectronics
+ * Copyright (C) 2009 Alessandro Rubini, somewhat based on at91sam926x
+ *
+ * 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/interrupt.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/clockchips.h>
+#include <linux/jiffies.h>
+#include <asm/mach/time.h>
+#include <mach/mtu.h>
+
+#define TIMER_CTRL 0x80 /* No divisor */
+#define TIMER_PERIODIC 0x40
+#define TIMER_SZ32BIT 0x02
+
+/* Initial value for SRC control register: all timers use MXTAL/8 source */
+#define SRC_CR_INIT_MASK 0x00007fff
+#define SRC_CR_INIT_VAL 0x2aaa8000
+
+static u32 nmdk_count; /* accumulated count */
+static u32 nmdk_cycle; /* write-once */
+static __iomem void *mtu_base;
+
+/*
+ * clocksource: the MTU device is a decrementing counters, so we negate
+ * the value being read.
+ */
+static cycle_t nmdk_read_timer(struct clocksource *cs)
+{
+ u32 count = readl(mtu_base + MTU_VAL(0));
+ return nmdk_count + nmdk_cycle - count;
+
+}
+
+static struct clocksource nmdk_clksrc = {
+ .name = "mtu_0",
+ .rating = 120,
+ .read = nmdk_read_timer,
+ .shift = 20,
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+/*
+ * Clockevent device: currently only periodic mode is supported
+ */
+static void nmdk_clkevt_mode(enum clock_event_mode mode,
+ struct clock_event_device *dev)
+{
+ unsigned long flags;
+
+ switch (mode) {
+ case CLOCK_EVT_MODE_PERIODIC:
+ /* enable interrupts -- and count current value? */
+ raw_local_irq_save(flags);
+ writel(readl(mtu_base + MTU_IMSC) | 1, mtu_base + MTU_IMSC);
+ raw_local_irq_restore(flags);
+ break;
+ case CLOCK_EVT_MODE_ONESHOT:
+ BUG(); /* Not supported, yet */
+ /* FALLTHROUGH */
+ case CLOCK_EVT_MODE_SHUTDOWN:
+ case CLOCK_EVT_MODE_UNUSED:
+ /* disable irq */
+ raw_local_irq_save(flags);
+ writel(readl(mtu_base + MTU_IMSC) & ~1, mtu_base + MTU_IMSC);
+ raw_local_irq_restore(flags);
+ break;
+ case CLOCK_EVT_MODE_RESUME:
+ break;
+ }
+}
+
+static struct clock_event_device nmdk_clkevt = {
+ .name = "mtu_0",
+ .features = CLOCK_EVT_FEAT_PERIODIC,
+ .shift = 32,
+ .rating = 100,
+ .set_mode = nmdk_clkevt_mode,
+};
+
+/*
+ * IRQ Handler for the timer 0 of the MTU block. The irq is not shared
+ * as we are the only users of mtu0 by now.
+ */
+static irqreturn_t nmdk_timer_interrupt(int irq, void *dev_id)
+{
+ /* ack: "interrupt clear register" */
+ writel( 1 << 0, mtu_base + MTU_ICR);
+
+ /* we can't count lost ticks, unfortunately */
+ nmdk_count += nmdk_cycle;
+ nmdk_clkevt.event_handler(&nmdk_clkevt);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * Set up timer interrupt, and return the current time in seconds.
+ */
+static struct irqaction nmdk_timer_irq = {
+ .name = "Nomadik Timer Tick",
+ .flags = IRQF_DISABLED | IRQF_TIMER,
+ .handler = nmdk_timer_interrupt,
+};
+
+static void nmdk_timer_reset(void)
+{
+ u32 cr;
+
+ writel(0, mtu_base + MTU_CR(0)); /* off */
+
+ /* configure load and background-load, and fire it up */
+ writel(nmdk_cycle, mtu_base + MTU_LR(0));
+ writel(nmdk_cycle, mtu_base + MTU_BGLR(0));
+ cr = MTU_CRn_PERIODIC | MTU_CRn_PRESCALE_1 | MTU_CRn_32BITS;
+ writel(cr, mtu_base + MTU_CR(0));
+ writel(cr | MTU_CRn_ENA, mtu_base + MTU_CR(0));
+}
+
+static void __init nmdk_timer_init(void)
+{
+ u32 src_cr;
+ unsigned long rate;
+ int bits;
+
+ rate = CLOCK_TICK_RATE; /* 2.4MHz */
+ nmdk_cycle = (rate + HZ/2) / HZ;
+
+ /* Configure timer sources in "system reset controller" ctrl reg */
+ src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
+ src_cr &= SRC_CR_INIT_MASK;
+ src_cr |= SRC_CR_INIT_VAL;
+ writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
+
+ /* Save global pointer to mtu, used by functions above */
+ mtu_base = io_p2v(NOMADIK_MTU0_BASE);
+
+ /* Init the timer and register clocksource */
+ nmdk_timer_reset();
+
+ nmdk_clksrc.mult = clocksource_hz2mult(rate, nmdk_clksrc.shift);
+ bits = 8*sizeof(nmdk_count);
+ nmdk_clksrc.mask = CLOCKSOURCE_MASK(bits);
+
+ clocksource_register(&nmdk_clksrc);
+
+ /* Register irq and clockevents */
+ setup_irq(IRQ_MTU0, &nmdk_timer_irq);
+ nmdk_clkevt.mult = div_sc(rate, NSEC_PER_SEC, nmdk_clkevt.shift);
+ nmdk_clkevt.cpumask = cpumask_of(0);
+ clockevents_register_device(&nmdk_clkevt);
+}
+
+struct sys_timer nomadik_timer = {
+ .init = nmdk_timer_init,
+};
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff