Optional properties:
- atmel,use-dma-rx: use of PDC or DMA for receiving data
- atmel,use-dma-tx: use of PDC or DMA for transmitting data
+- rts-gpios: specify a GPIO for RTS line. It will use specified PIO instead of the peripheral
+ function pin for the USART RTS feature. If unsure, don't specify this property.
- add dma bindings for dma transfer:
- dmas: DMA specifier, consisting of a phandle to DMA controller node,
memory peripheral interface and USART DMA channel ID, FIFO configuration.
clock-names = "usart";
atmel,use-dma-rx;
atmel,use-dma-tx;
+ rts-gpios = <&pioD 15 0>;
};
- use DMA:
#ifndef _ASMARM_TIMEX_H
#define _ASMARM_TIMEX_H
-#ifdef CONFIG_ARCH_MULTIPLATFORM
-#define CLOCK_TICK_RATE 1000000
-#else
-#include <mach/timex.h>
-#endif
-
typedef unsigned long cycles_t;
#define get_cycles() ({ cycles_t c; read_current_timer(&c) ? 0 : c; })
#include <mach/at91rm9200.h>
#include <mach/at91_st.h>
#include <mach/cpu.h>
+#include <mach/hardware.h>
#include "at91_aic.h"
#include "soc.h"
#include <mach/at91rm9200.h>
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
+#include <mach/hardware.h>
#include "board.h"
#include "generic.h"
static struct atmel_uart_data dbgu_data = {
.use_dma_tx = 0,
.use_dma_rx = 0, /* DBGU not capable of receive DMA */
+ .rts_gpio = -EINVAL,
};
static u64 dbgu_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart0_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart0_dmamask = DMA_BIT_MASK(32);
if (pins & ATMEL_UART_RTS) {
/*
* AT91RM9200 Errata #39 - RTS0 is not internally connected to PA21.
- * We need to drive the pin manually. Default is off (RTS is active low).
+ * We need to drive the pin manually. The serial driver will driver
+ * this to high when initializing.
*/
- at91_set_gpio_output(AT91_PIN_PA21, 1);
+ uart0_data.rts_gpio = AT91_PIN_PA21;
}
}
static struct atmel_uart_data uart1_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart1_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart2_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart2_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart3_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart3_dmamask = DMA_BIT_MASK(32);
#include <asm/mach/time.h>
#include <mach/at91_st.h>
+#include <mach/hardware.h>
static unsigned long last_crtr;
static u32 irqmask;
#include <mach/cpu.h>
#include <mach/at91_dbgu.h>
#include <mach/at91sam9260.h>
+#include <mach/hardware.h>
#include "at91_aic.h"
#include "at91_rstc.h"
#include <mach/at91_matrix.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91_adc.h>
+#include <mach/hardware.h>
#include "board.h"
#include "generic.h"
static struct atmel_uart_data dbgu_data = {
.use_dma_tx = 0,
.use_dma_rx = 0, /* DBGU not capable of receive DMA */
+ .rts_gpio = -EINVAL,
};
static u64 dbgu_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart0_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart0_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart1_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart1_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart2_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart2_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart3_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart3_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart4_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart4_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart5_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart5_dmamask = DMA_BIT_MASK(32);
#include <asm/system_misc.h>
#include <mach/cpu.h>
#include <mach/at91sam9261.h>
+#include <mach/hardware.h>
#include "at91_aic.h"
#include "at91_rstc.h"
#include <mach/at91sam9261_matrix.h>
#include <mach/at91_matrix.h>
#include <mach/at91sam9_smc.h>
+#include <mach/hardware.h>
#include "board.h"
#include "generic.h"
static struct atmel_uart_data dbgu_data = {
.use_dma_tx = 0,
.use_dma_rx = 0, /* DBGU not capable of receive DMA */
+ .rts_gpio = -EINVAL,
};
static u64 dbgu_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart0_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart0_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart1_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart1_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart2_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart2_dmamask = DMA_BIT_MASK(32);
#include <asm/mach/map.h>
#include <asm/system_misc.h>
#include <mach/at91sam9263.h>
+#include <mach/hardware.h>
#include "at91_aic.h"
#include "at91_rstc.h"
#include <mach/at91sam9263_matrix.h>
#include <mach/at91_matrix.h>
#include <mach/at91sam9_smc.h>
+#include <mach/hardware.h>
#include "board.h"
#include "generic.h"
static struct atmel_uart_data dbgu_data = {
.use_dma_tx = 0,
.use_dma_rx = 0, /* DBGU not capable of receive DMA */
+ .rts_gpio = -EINVAL,
};
static u64 dbgu_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart0_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart0_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart1_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart1_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart2_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart2_dmamask = DMA_BIT_MASK(32);
#include <linux/of_irq.h>
#include <asm/mach/time.h>
+#include <mach/hardware.h>
#define AT91_PIT_MR 0x00 /* Mode Register */
#define AT91_PIT_PITIEN (1 << 25) /* Timer Interrupt Enable */
#include <asm/system_misc.h>
#include <mach/at91sam9g45.h>
#include <mach/cpu.h>
+#include <mach/hardware.h>
#include "at91_aic.h"
#include "soc.h"
#include <mach/at91sam9_smc.h>
#include <linux/platform_data/dma-atmel.h>
#include <mach/atmel-mci.h>
+#include <mach/hardware.h>
#include <media/atmel-isi.h>
static struct atmel_uart_data dbgu_data = {
.use_dma_tx = 0,
.use_dma_rx = 0,
+ .rts_gpio = -EINVAL,
};
static u64 dbgu_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart0_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart0_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart1_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart1_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart2_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart2_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart3_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart3_dmamask = DMA_BIT_MASK(32);
#include <mach/cpu.h>
#include <mach/at91_dbgu.h>
#include <mach/at91sam9rl.h>
+#include <mach/hardware.h>
#include "at91_aic.h"
#include "at91_rstc.h"
#include <mach/at91sam9rl_matrix.h>
#include <mach/at91_matrix.h>
#include <mach/at91sam9_smc.h>
+#include <mach/hardware.h>
#include <linux/platform_data/dma-atmel.h>
#include "board.h"
static struct atmel_uart_data dbgu_data = {
.use_dma_tx = 0,
.use_dma_rx = 0, /* DBGU not capable of receive DMA */
+ .rts_gpio = -EINVAL,
};
static u64 dbgu_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart0_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart0_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart1_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart1_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart2_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart2_dmamask = DMA_BIT_MASK(32);
static struct atmel_uart_data uart3_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
+ .rts_gpio = -EINVAL,
};
static u64 uart3_dmamask = DMA_BIT_MASK(32);
#include <asm/mach/arch.h>
#include <mach/at91x40.h>
#include <mach/at91_st.h>
-#include <mach/timex.h>
+#include <mach/hardware.h>
#include "at91_aic.h"
#include "generic.h"
#include <linux/time.h>
#include <linux/io.h>
#include <mach/hardware.h>
+#include <mach/at91x40.h>
#include <asm/mach/time.h>
#include "at91_tc.h"
#include <asm/mach/arch.h>
#include <mach/at91sam9_smc.h>
+#include <mach/hardware.h>
#include "at91_aic.h"
#include "board.h"
#include <asm/mach/arch.h>
#include <mach/at91sam9_smc.h>
+#include <mach/hardware.h>
#include "at91_aic.h"
#include "board.h"
#include <asm/mach/arch.h>
#include <mach/at91sam9_smc.h>
+#include <mach/hardware.h>
#include "at91_aic.h"
#include "board.h"
#define AT91_PS_CR (AT91_PS + 0) /* PS Control register */
#define AT91_PS_CR_CPU (1 << 0) /* CPU clock disable bit */
+#define AT91X40_MASTER_CLOCK 40000000
+
#endif /* AT91X40_H */
+++ /dev/null
-/*
- * arch/arm/mach-at91/include/mach/timex.h
- *
- * Copyright (C) 2003 SAN People
- *
- * 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_TIMEX_H
-#define __ASM_ARCH_TIMEX_H
-
-#include <mach/hardware.h>
-
-#ifdef CONFIG_ARCH_AT91X40
-
-#define AT91X40_MASTER_CLOCK 40000000
-#define CLOCK_TICK_RATE (AT91X40_MASTER_CLOCK)
-
-#else
-
-#define CLOCK_TICK_RATE 12345678
-
-#endif
-
-#endif /* __ASM_ARCH_TIMEX_H */
#include <asm/mach/irq.h>
#include <mach/cpu.h>
+#include <mach/hardware.h>
#include "at91_aic.h"
#include "generic.h"
+++ /dev/null
-/* Bogus value */
-#define CLOCK_TICK_RATE 512000
+++ /dev/null
-/*
- * DaVinci timer defines
- *
- * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
- *
- * 2007 (c) MontaVista Software, Inc. 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 __ASM_ARCH_TIMEX_H
-#define __ASM_ARCH_TIMEX_H
-
-/*
- * Alert: Not all timers of the DaVinci family run at a frequency of 27MHz,
- * but we should be fine as long as CLOCK_TICK_RATE or LATCH (see include/
- * linux/jiffies.h) are not used directly in code. Currently none of the
- * code relevant to DaVinci platform depends on these values directly.
- */
-#define CLOCK_TICK_RATE 27000000
-
-#endif /* __ASM_ARCH_TIMEX_H__ */
+++ /dev/null
-/*
- * arch/arm/mach-dove/include/mach/timex.h
- *
- * 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 CLOCK_TICK_RATE (100 * HZ)
+++ /dev/null
-/*
- * arch/arm/mach-ebsa110/include/mach/timex.h
- *
- * Copyright (C) 1997, 1998 Russell King
- *
- * 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.
- *
- * EBSA110 architecture timex specifications
- */
-
-/*
- * On the EBSA, the clock ticks at weird rates.
- * This is therefore not used to calculate the
- * divisor.
- */
-#define CLOCK_TICK_RATE 47894000
-
#define EP93XX_TIMER4_CLOCK 983040
#define TIMER1_RELOAD ((EP93XX_TIMER123_CLOCK / HZ) - 1)
-#define TIMER4_TICKS_PER_JIFFY DIV_ROUND_CLOSEST(CLOCK_TICK_RATE, HZ)
+#define TIMER4_TICKS_PER_JIFFY DIV_ROUND_CLOSEST(EP93XX_TIMER4_CLOCK, HZ)
static unsigned int last_jiffy_time;
+++ /dev/null
-/*
- * arch/arm/mach-ep93xx/include/mach/timex.h
- */
-
-#define CLOCK_TICK_RATE 983040
+++ /dev/null
-/* linux/arch/arm/mach-exynos4/include/mach/timex.h
- *
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
- * http://www.samsung.com
- *
- * Copyright (c) 2003-2010 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * Based on arch/arm/mach-s5p6442/include/mach/timex.h
- *
- * EXYNOS4 - time parameters
- *
- * 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.
-*/
-
-#ifndef __ASM_ARCH_TIMEX_H
-#define __ASM_ARCH_TIMEX_H __FILE__
-
-/* CLOCK_TICK_RATE needs to be evaluatable by the cpp, so making it
- * a variable is useless. It seems as long as we make our timers an
- * exact multiple of HZ, any value that makes a 1->1 correspondence
- * for the time conversion functions to/from jiffies is acceptable.
-*/
-
-#define CLOCK_TICK_RATE 12000000
-
-#endif /* __ASM_ARCH_TIMEX_H */
+++ /dev/null
-/*
- * arch/arm/mach-footbridge/include/mach/timex.h
- *
- * Copyright (C) 1998 Russell King
- *
- * 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.
- *
- * EBSA285 architecture timex specifications
- */
-
-/*
- * We assume a constant here; this satisfies the maths in linux/timex.h
- * and linux/time.h. CLOCK_TICK_RATE is actually system dependent, but
- * this must be a constant.
- */
-#define CLOCK_TICK_RATE (50000000/16)
+++ /dev/null
-/*
- * Gemini timex specifications
- *
- * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
- *
- * 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.
- */
-
-/* When AHB bus frequency is 150MHz */
-#define CLOCK_TICK_RATE 38000000
+++ /dev/null
-/*
- * arch/arm/mach-integrator/include/mach/timex.h
- *
- * Integrator architecture timex specifications
- *
- * 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
- */
-
-/*
- * ??
- */
-#define CLOCK_TICK_RATE (50000000 / 16)
+++ /dev/null
-#define CLOCK_TICK_RATE (100 * HZ)
+++ /dev/null
-/*
- * arch/arm/mach-iop32x/include/mach/timex.h
- *
- * IOP32x architecture timex specifications
- */
-#define CLOCK_TICK_RATE (100 * HZ)
+++ /dev/null
-/*
- * arch/arm/mach-iop33x/include/mach/timex.h
- *
- * IOP3xx architecture timex specifications
- */
-#define CLOCK_TICK_RATE (100 * HZ)
#include <linux/interrupt.h>
#include <linux/bitops.h>
#include <linux/time.h>
-#include <linux/timex.h>
#include <linux/clocksource.h>
#include <linux/clockchips.h>
#include <linux/io.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
+#define IXP4XX_TIMER_FREQ 66666000
+
+/*
+ * The timer register doesn't allow to specify the two least significant bits of
+ * the timeout value and assumes them being zero. So make sure IXP4XX_LATCH is
+ * the best value with the two least significant bits unset.
+ */
+#define IXP4XX_LATCH DIV_ROUND_CLOSEST(IXP4XX_TIMER_FREQ, \
+ (IXP4XX_OST_RELOAD_MASK + 1) * HZ) * \
+ (IXP4XX_OST_RELOAD_MASK + 1)
+
static void __init ixp4xx_clocksource_init(void);
static void __init ixp4xx_clockevent_init(void);
static struct clock_event_device clockevent_ixp4xx;
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
- osrt = LATCH & ~IXP4XX_OST_RELOAD_MASK;
+ osrt = IXP4XX_LATCH & ~IXP4XX_OST_RELOAD_MASK;
opts = IXP4XX_OST_ENABLE;
break;
case CLOCK_EVT_MODE_ONESHOT:
+++ /dev/null
-/*
- * arch/arm/mach-ixp4xx/include/mach/timex.h
- *
- */
-
-#include <mach/ixp4xx-regs.h>
-
-/*
- * We use IXP425 General purpose timer for our timer needs, it runs at
- * 66.66... MHz. We do a convulted calculation of CLOCK_TICK_RATE b/c the
- * timer register ignores the bottom 2 bits of the LATCH value.
- */
-#define IXP4XX_TIMER_FREQ 66666000
-#define CLOCK_TICK_RATE \
- (((IXP4XX_TIMER_FREQ / HZ & ~IXP4XX_OST_RELOAD_MASK) + 1) * HZ)
-
+++ /dev/null
-/*
- * arch/arm/mach-kirkwood/include/mach/timex.h
- *
- * 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 CLOCK_TICK_RATE (100 * HZ)
-
+++ /dev/null
-/*
- * arch/arm/mach-ks8695/include/mach/timex.h
- *
- * Copyright (C) 2006 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * KS8695 - Time Parameters
- *
- * 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.
- */
-
-#ifndef __ASM_ARCH_TIMEX_H
-#define __ASM_ARCH_TIMEX_H
-
-#include <mach/hardware.h>
-
-#define CLOCK_TICK_RATE KS8695_CLOCK_RATE
-
-#endif
+++ /dev/null
-/*
- * arch/arm/mach-lpc32xx/include/mach/timex.h
- *
- * Author: Kevin Wells <kevin.wells@nxp.com>
- *
- * Copyright (C) 2010 NXP Semiconductors
- *
- * 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_TIMEX_H
-#define __ASM_ARCH_TIMEX_H
-
-/*
- * Rate in Hz of the main system oscillator. This value should match
- * the value 'MAIN_OSC_FREQ' in platform.h
- */
-#define CLOCK_TICK_RATE 13000000
-
-#endif
+++ /dev/null
-/*
- * linux/arch/arm/mach-mmp/include/mach/timex.h
- *
- * 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.
- */
-
-#ifdef CONFIG_CPU_MMP2
-#define CLOCK_TICK_RATE 6500000
-#else
-#define CLOCK_TICK_RATE 3250000
-#endif
#include "clock.h"
+#ifdef CONFIG_CPU_MMP2
+#define MMP_CLOCK_FREQ 6500000
+#else
+#define MMP_CLOCK_FREQ 3250000
+#endif
+
#define TIMERS_VIRT_BASE TIMERS1_VIRT_BASE
#define MAX_DELTA (0xfffffffe)
{
timer_config();
- sched_clock_register(mmp_read_sched_clock, 32, CLOCK_TICK_RATE);
+ sched_clock_register(mmp_read_sched_clock, 32, MMP_CLOCK_FREQ);
ckevt.cpumask = cpumask_of(0);
setup_irq(irq, &timer_irq);
- clocksource_register_hz(&cksrc, CLOCK_TICK_RATE);
- clockevents_config_and_register(&ckevt, CLOCK_TICK_RATE,
+ clocksource_register_hz(&cksrc, MMP_CLOCK_FREQ);
+ clockevents_config_and_register(&ckevt, MMP_CLOCK_FREQ,
MIN_DELTA, MAX_DELTA);
}
+++ /dev/null
-/* arch/arm/mach-msm/include/mach/timex.h
- *
- * Copyright (C) 2007 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * 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_MSM_TIMEX_H
-#define __ASM_ARCH_MSM_TIMEX_H
-
-#define CLOCK_TICK_RATE 1000000
-
-#endif
+++ /dev/null
-/*
- * arch/arm/mach-mv78xx0/include/mach/timex.h
- *
- * 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 CLOCK_TICK_RATE (100 * HZ)
+++ /dev/null
-/*
- * arch/arm/mach-netx/include/mach/timex.h
- *
- * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
- *
- * 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.
- *
- * 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 CLOCK_TICK_RATE 100000000
#include <asm/mach/time.h>
#include <mach/netx-regs.h>
+#define NETX_CLOCK_FREQ 100000000
+#define NETX_LATCH DIV_ROUND_CLOSEST(NETX_CLOCK_FREQ, HZ)
+
#define TIMER_CLOCKEVENT 0
#define TIMER_CLOCKSOURCE 1
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
- writel(LATCH, NETX_GPIO_COUNTER_MAX(TIMER_CLOCKEVENT));
+ writel(NETX_LATCH, NETX_GPIO_COUNTER_MAX(TIMER_CLOCKEVENT));
tmode = NETX_GPIO_COUNTER_CTRL_RST_EN |
NETX_GPIO_COUNTER_CTRL_IRQ_EN |
NETX_GPIO_COUNTER_CTRL_RUN;
/* Reset the timer value to zero */
writel(0, NETX_GPIO_COUNTER_CURRENT(0));
- writel(LATCH, NETX_GPIO_COUNTER_MAX(0));
+ writel(NETX_LATCH, NETX_GPIO_COUNTER_MAX(0));
/* acknowledge interrupt */
writel(COUNTER_BIT(0), NETX_GPIO_IRQ);
NETX_GPIO_COUNTER_CTRL(TIMER_CLOCKSOURCE));
clocksource_mmio_init(NETX_GPIO_COUNTER_CURRENT(TIMER_CLOCKSOURCE),
- "netx_timer", CLOCK_TICK_RATE, 200, 32, clocksource_mmio_readl_up);
+ "netx_timer", NETX_CLOCK_FREQ, 200, 32, clocksource_mmio_readl_up);
/* with max_delta_ns >= delta2ns(0x800) the system currently runs fine.
* Adding some safety ... */
netx_clockevent.cpumask = cpumask_of(0);
- clockevents_config_and_register(&netx_clockevent, CLOCK_TICK_RATE,
+ clockevents_config_and_register(&netx_clockevent, NETX_CLOCK_FREQ,
0xa00, 0xfffffffe);
}
+++ /dev/null
-/*
- * arch/arm/mach-omap1/include/mach/timex.h
- */
-
-#include <plat/timex.h>
+++ /dev/null
-/*
- * arch/arm/mach-omap2/include/mach/timex.h
- */
-
-#include <plat/timex.h>
+++ /dev/null
-/*
- * arch/arm/mach-orion5x/include/mach/timex.h
- *
- * Tzachi Perelstein <tzachi@marvell.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 CLOCK_TICK_RATE (100 * HZ)
+++ /dev/null
-/*
- * arch/arm/mach-pxa/include/mach/timex.h
- *
- * Author: Nicolas Pitre
- * Created: Jun 15, 2001
- * Copyright: MontaVista Software Inc.
- *
- * 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.
- */
-
-/* Various drivers are still using the constant of CLOCK_TICK_RATE, for
- * those drivers to at least work, the definition is provided here.
- *
- * NOTE: this is no longer accurate when multiple processors and boards
- * are selected, newer drivers should not depend on this any more. Use
- * either the clocksource/clockevent or get this at run-time by calling
- * get_clock_tick_rate() (as defined in generic.c).
- */
-
-#if defined(CONFIG_PXA25x)
-/* PXA250/210 timer base */
-#define CLOCK_TICK_RATE 3686400
-#elif defined(CONFIG_PXA27x)
-/* PXA27x timer base */
-#ifdef CONFIG_MACH_MAINSTONE
-#define CLOCK_TICK_RATE 3249600
-#else
-#define CLOCK_TICK_RATE 3250000
-#endif
-#else
-#define CLOCK_TICK_RATE 3250000
-#endif
+++ /dev/null
-/*
- * arch/arm/mach-realview/include/mach/timex.h
- *
- * RealView architecture timex specifications
- *
- * Copyright (C) 2003 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
- */
-
-#define CLOCK_TICK_RATE (50000000 / 16)
+++ /dev/null
-/*
- * arch/arm/mach-rpc/include/mach/timex.h
- *
- * Copyright (C) 1997, 1998 Russell King
- *
- * 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.
- *
- * RiscPC architecture timex specifications
- */
-
-/*
- * On the RiscPC, the clock ticks at 2MHz.
- */
-#define CLOCK_TICK_RATE 2000000
-
#include <asm/mach/time.h>
+#define RPC_CLOCK_FREQ 2000000
+#define RPC_LATCH DIV_ROUND_CLOSEST(RPC_CLOCK_FREQ, HZ)
+
static u32 ioc_timer_gettimeoffset(void)
{
unsigned int count1, count2, status;
* and count2.
*/
if (status & (1 << 5))
- offset -= LATCH;
+ offset -= RPC_LATCH;
} else if (count2 > count1) {
/*
* We have just had another interrupt between reading
* count1 and count2.
*/
- offset -= LATCH;
+ offset -= RPC_LATCH;
}
- offset = (LATCH - offset) * (tick_nsec / 1000);
- return ((offset + LATCH/2) / LATCH) * 1000;
+ offset = (RPC_LATCH - offset) * (tick_nsec / 1000);
+ return DIV_ROUND_CLOSEST(offset, RPC_LATCH) * 1000;
}
void __init ioctime_init(void)
{
- ioc_writeb(LATCH & 255, IOC_T0LTCHL);
- ioc_writeb(LATCH >> 8, IOC_T0LTCHH);
+ ioc_writeb(RPC_LATCH & 255, IOC_T0LTCHL);
+ ioc_writeb(RPC_LATCH >> 8, IOC_T0LTCHH);
ioc_writeb(0, IOC_T0GO);
}
+++ /dev/null
-/* arch/arm/mach-s3c2410/include/mach/timex.h
- *
- * Copyright (c) 2003-2005 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * S3C2410 - time parameters
- *
- * 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.
-*/
-
-#ifndef __ASM_ARCH_TIMEX_H
-#define __ASM_ARCH_TIMEX_H
-
-/* CLOCK_TICK_RATE needs to be evaluatable by the cpp, so making it
- * a variable is useless. It seems as long as we make our timers an
- * exact multiple of HZ, any value that makes a 1->1 correspondence
- * for the time conversion functions to/from jiffies is acceptable.
-*/
-
-#define CLOCK_TICK_RATE 12000000
-
-#endif /* __ASM_ARCH_TIMEX_H */
+++ /dev/null
-/* arch/arm/mach-s3c64xx/include/mach/timex.h
- *
- * Copyright (c) 2003-2005 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * S3C6400 - time parameters
- *
- * 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.
-*/
-
-#ifndef __ASM_ARCH_TIMEX_H
-#define __ASM_ARCH_TIMEX_H
-
-/* CLOCK_TICK_RATE needs to be evaluatable by the cpp, so making it
- * a variable is useless. It seems as long as we make our timers an
- * exact multiple of HZ, any value that makes a 1->1 correspondence
- * for the time conversion functions to/from jiffies is acceptable.
-*/
-
-#define CLOCK_TICK_RATE 12000000
-
-#endif /* __ASM_ARCH_TIMEX_H */
+++ /dev/null
-/* linux/arch/arm/mach-s5p64x0/include/mach/timex.h
- *
- * Copyright (c) 2010 Samsung Electronics Co., Ltd.
- * http://www.samsung.com
- *
- * Copyright (c) 2003-2005 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * S5P64X0 - time parameters
- *
- * 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.
-*/
-
-#ifndef __ASM_ARCH_TIMEX_H
-#define __ASM_ARCH_TIMEX_H
-
-/* CLOCK_TICK_RATE needs to be evaluatable by the cpp, so making it
- * a variable is useless. It seems as long as we make our timers an
- * exact multiple of HZ, any value that makes a 1->1 correspondence
- * for the time conversion functions to/from jiffies is acceptable.
-*/
-
-#define CLOCK_TICK_RATE 12000000
-
-#endif /* __ASM_ARCH_TIMEX_H */
+++ /dev/null
-/* arch/arm/mach-s5pc100/include/mach/timex.h
- *
- * Copyright (c) 2003-2005 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * S3C6400 - time parameters
- *
- * 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.
-*/
-
-#ifndef __ASM_ARCH_TIMEX_H
-#define __ASM_ARCH_TIMEX_H
-
-/* CLOCK_TICK_RATE needs to be evaluatable by the cpp, so making it
- * a variable is useless. It seems as long as we make our timers an
- * exact multiple of HZ, any value that makes a 1->1 correspondence
- * for the time conversion functions to/from jiffies is acceptable.
-*/
-
-#define CLOCK_TICK_RATE 12000000
-
-#endif /* __ASM_ARCH_TIMEX_H */
+++ /dev/null
-/* linux/arch/arm/mach-s5pv210/include/mach/timex.h
- *
- * Copyright (c) 2003-2010 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * Copyright (c) 2010 Samsung Electronics Co., Ltd.
- * http://www.samsung.com/
- *
- * Based on arch/arm/mach-s5p6442/include/mach/timex.h
- *
- * S5PV210 - time parameters
- *
- * 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.
-*/
-
-#ifndef __ASM_ARCH_TIMEX_H
-#define __ASM_ARCH_TIMEX_H __FILE__
-
-/* CLOCK_TICK_RATE needs to be evaluatable by the cpp, so making it
- * a variable is useless. It seems as long as we make our timers an
- * exact multiple of HZ, any value that makes a 1->1 correspondence
- * for the time conversion functions to/from jiffies is acceptable.
-*/
-
-#define CLOCK_TICK_RATE 12000000
-
-#endif /* __ASM_ARCH_TIMEX_H */
+++ /dev/null
-/*
- * arch/arm/mach-sa1100/include/mach/timex.h
- *
- * SA1100 architecture timex specifications
- *
- * Copyright (C) 1998
- */
-
-/*
- * SA1100 timer
- */
-#define CLOCK_TICK_RATE 3686400
*
*/
#include <linux/init.h>
+#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
+#define SA1100_CLOCK_FREQ 3686400
+#define SA1100_LATCH DIV_ROUND_CLOSEST(SA1100_CLOCK_FREQ, HZ)
+
static u64 notrace sa1100_read_sched_clock(void)
{
return readl_relaxed(OSCR);
/*
* OSMR0 is the system timer: make sure OSCR is sufficiently behind
*/
- writel_relaxed(OSMR0 - LATCH, OSCR);
+ writel_relaxed(OSMR0 - SA1100_LATCH, OSCR);
}
#else
#define sa1100_timer_suspend NULL
setup_irq(IRQ_OST0, &sa1100_timer_irq);
- clocksource_mmio_init(OSCR, "oscr", CLOCK_TICK_RATE, 200, 32,
+ clocksource_mmio_init(OSCR, "oscr", SA1100_CLOCK_FREQ, 200, 32,
clocksource_mmio_readl_up);
clockevents_config_and_register(&ckevt_sa1100_osmr0, 3686400,
MIN_OSCR_DELTA * 2, 0x7fffffff);
+++ /dev/null
-#ifndef __ASM_MACH_TIMEX_H
-#define __ASM_MACH_TIMEX_H
-
-#define CLOCK_TICK_RATE 1193180 /* unused i8253 PIT value */
-
-#endif /* __ASM_MACH_TIMEX_H */
+++ /dev/null
-/*
- * arch/arm/plat-spear/include/plat/timex.h
- *
- * SPEAr platform specific timex definitions
- *
- * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar <viresh.linux@gmail.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 __PLAT_TIMEX_H
-#define __PLAT_TIMEX_H
-
-#define CLOCK_TICK_RATE 48000000
-
-#endif /* __PLAT_TIMEX_H */
+++ /dev/null
-/*
- * arch/arm/mach-versatile/include/mach/timex.h
- *
- * Versatile architecture timex specifications
- *
- * Copyright (C) 2003 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
- */
-
-#define CLOCK_TICK_RATE (50000000 / 16)
+++ /dev/null
-/*
- * arch/arm/mach-w90x900/include/mach/timex.h
- *
- * Copyright (c) 2008 Nuvoton technology corporation
- * All rights reserved.
- *
- * Wan ZongShun <mcuos.com@gmail.com>
- *
- * Based on arch/arm/mach-s3c2410/include/mach/timex.h
- *
- * 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.
- *
- */
-
-#ifndef __ASM_ARCH_TIMEX_H
-#define __ASM_ARCH_TIMEX_H
-
-/* CLOCK_TICK_RATE Now, I don't use it. */
-
-#define CLOCK_TICK_RATE 15000000
-
-#endif /* __ASM_ARCH_TIMEX_H */
+++ /dev/null
-/*
- * arch/arm/plat-omap/include/mach/timex.h
- *
- * Copyright (C) 2000 RidgeRun, Inc.
- * Author: Greg Lonnon <glonnon@ridgerun.com>
- *
- * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * 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.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#if !defined(__ASM_ARCH_OMAP_TIMEX_H)
-#define __ASM_ARCH_OMAP_TIMEX_H
-
-#define CLOCK_TICK_RATE (HZ * 100000UL)
-
-#endif /* __ASM_ARCH_OMAP_TIMEX_H */
#include <linux/of_irq.h>
#include <linux/of_address.h>
#include <linux/sched_clock.h>
-#include <asm/mach/time.h>
+
+#define MARCO_CLOCK_FREQ 1000000
#define SIRFSOC_TIMER_32COUNTER_0_CTRL 0x0000
#define SIRFSOC_TIMER_32COUNTER_1_CTRL 0x0004
ce->rating = 200;
ce->set_mode = sirfsoc_timer_set_mode;
ce->set_next_event = sirfsoc_timer_set_next_event;
- clockevents_calc_mult_shift(ce, CLOCK_TICK_RATE, 60);
+ clockevents_calc_mult_shift(ce, MARCO_CLOCK_FREQ, 60);
ce->max_delta_ns = clockevent_delta2ns(-2, ce);
ce->min_delta_ns = clockevent_delta2ns(2, ce);
ce->cpumask = cpumask_of(cpu);
BUG_ON(IS_ERR(clk));
rate = clk_get_rate(clk);
- BUG_ON(rate < CLOCK_TICK_RATE);
- BUG_ON(rate % CLOCK_TICK_RATE);
+ BUG_ON(rate < MARCO_CLOCK_FREQ);
+ BUG_ON(rate % MARCO_CLOCK_FREQ);
/* Initialize the timer dividers */
- timer_div = rate / CLOCK_TICK_RATE - 1;
+ timer_div = rate / MARCO_CLOCK_FREQ - 1;
writel_relaxed(timer_div << 16, sirfsoc_timer_base + SIRFSOC_TIMER_64COUNTER_CTRL);
writel_relaxed(timer_div << 16, sirfsoc_timer_base + SIRFSOC_TIMER_32COUNTER_0_CTRL);
writel_relaxed(timer_div << 16, sirfsoc_timer_base + SIRFSOC_TIMER_32COUNTER_1_CTRL);
/* Clear all interrupts */
writel_relaxed(0xFFFF, sirfsoc_timer_base + SIRFSOC_TIMER_INTR_STATUS);
- BUG_ON(clocksource_register_hz(&sirfsoc_clocksource, CLOCK_TICK_RATE));
+ BUG_ON(clocksource_register_hz(&sirfsoc_clocksource, MARCO_CLOCK_FREQ));
sirfsoc_clockevent_init();
}
#include <linux/sched_clock.h>
#include <asm/mach/time.h>
+#define PRIMA2_CLOCK_FREQ 1000000
+
#define SIRFSOC_TIMER_COUNTER_LO 0x0000
#define SIRFSOC_TIMER_COUNTER_HI 0x0004
#define SIRFSOC_TIMER_MATCH_0 0x0008
static void __init sirfsoc_clockevent_init(void)
{
sirfsoc_clockevent.cpumask = cpumask_of(0);
- clockevents_config_and_register(&sirfsoc_clockevent, CLOCK_TICK_RATE,
+ clockevents_config_and_register(&sirfsoc_clockevent, PRIMA2_CLOCK_FREQ,
2, -2);
}
rate = clk_get_rate(clk);
- BUG_ON(rate < CLOCK_TICK_RATE);
- BUG_ON(rate % CLOCK_TICK_RATE);
+ BUG_ON(rate < PRIMA2_CLOCK_FREQ);
+ BUG_ON(rate % PRIMA2_CLOCK_FREQ);
sirfsoc_timer_base = of_iomap(np, 0);
if (!sirfsoc_timer_base)
sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
- writel_relaxed(rate / CLOCK_TICK_RATE / 2 - 1, sirfsoc_timer_base + SIRFSOC_TIMER_DIV);
+ writel_relaxed(rate / PRIMA2_CLOCK_FREQ / 2 - 1,
+ sirfsoc_timer_base + SIRFSOC_TIMER_DIV);
writel_relaxed(0, sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_LO);
writel_relaxed(0, sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_HI);
writel_relaxed(BIT(0), sirfsoc_timer_base + SIRFSOC_TIMER_STATUS);
- BUG_ON(clocksource_register_hz(&sirfsoc_clocksource, CLOCK_TICK_RATE));
+ BUG_ON(clocksource_register_hz(&sirfsoc_clocksource,
+ PRIMA2_CLOCK_FREQ));
- sched_clock_register(sirfsoc_read_sched_clock, 64, CLOCK_TICK_RATE);
+ sched_clock_register(sirfsoc_read_sched_clock, 64, PRIMA2_CLOCK_FREQ);
BUG_ON(setup_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq));
}
if (value > 20 && value < 32767)
- count = (IXP4XX_TIMER_FREQ / (value * 4)) - 1;
+ count = (ixp4xx_timer_freq / (value * 4)) - 1;
ixp4xx_spkr_control(pin, count);
#include <mach/at91_rtt.h>
#include <mach/cpu.h>
-
+#include <mach/hardware.h>
/*
* This driver uses two configurable hardware resources that live in the
#include <mach/hardware.h>
-#define TIMER_FREQ CLOCK_TICK_RATE
#define RTC_DEF_DIVIDER (32768 - 1)
#define RTC_DEF_TRIM 0
#define MAXFREQ_PERIODIC 1000
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_device.h>
+#include <linux/of_gpio.h>
#include <linux/dma-mapping.h>
#include <linux/atmel_pdc.h>
#include <linux/atmel_serial.h>
#include <linux/uaccess.h>
#include <linux/platform_data/atmel.h>
#include <linux/timer.h>
+#include <linux/gpio.h>
#include <asm/io.h>
#include <asm/ioctls.h>
-#ifdef CONFIG_ARM
-#include <mach/cpu.h>
-#include <asm/gpio.h>
-#endif
-
#define PDC_BUFFER_SIZE 512
/* Revisit: We should calculate this based on the actual port settings */
#define PDC_RX_TIMEOUT (3 * 10) /* 3 bytes */
struct circ_buf rx_ring;
struct serial_rs485 rs485; /* rs485 settings */
+ int rts_gpio; /* optional RTS GPIO */
unsigned int tx_done_mask;
bool is_usart; /* usart or uart */
struct timer_list uart_timer; /* uart timer */
unsigned int mode;
struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
-#ifdef CONFIG_ARCH_AT91RM9200
- if (cpu_is_at91rm9200()) {
- /*
- * AT91RM9200 Errata #39: RTS0 is not internally connected
- * to PA21. We need to drive the pin manually.
- */
- if (port->mapbase == AT91RM9200_BASE_US0) {
- if (mctrl & TIOCM_RTS)
- at91_set_gpio_value(AT91_PIN_PA21, 0);
- else
- at91_set_gpio_value(AT91_PIN_PA21, 1);
- }
+ /*
+ * AT91RM9200 Errata #39: RTS0 is not internally connected
+ * to PA21. We need to drive the pin as a GPIO.
+ */
+ if (gpio_is_valid(atmel_port->rts_gpio)) {
+ if (mctrl & TIOCM_RTS)
+ gpio_set_value(atmel_port->rts_gpio, 0);
+ else
+ gpio_set_value(atmel_port->rts_gpio, 1);
}
-#endif
if (mctrl & TIOCM_RTS)
control |= ATMEL_US_RTSEN;
port = &atmel_ports[ret];
port->backup_imr = 0;
port->uart.line = ret;
+ port->rts_gpio = -EINVAL; /* Invalid, zero could be valid */
+ if (pdata)
+ port->rts_gpio = pdata->rts_gpio;
+ else if (np)
+ port->rts_gpio = of_get_named_gpio(np, "rts-gpios", 0);
+
+ if (gpio_is_valid(port->rts_gpio)) {
+ ret = devm_gpio_request(&pdev->dev, port->rts_gpio, "RTS");
+ if (ret) {
+ dev_err(&pdev->dev, "error requesting RTS GPIO\n");
+ goto err;
+ }
+ /* Default to 1 as RTS is active low */
+ ret = gpio_direction_output(port->rts_gpio, 1);
+ if (ret) {
+ dev_err(&pdev->dev, "error setting up RTS GPIO\n");
+ goto err;
+ }
+ }
ret = atmel_init_port(port, pdev);
if (ret)
short use_dma_rx; /* use receive DMA? */
void __iomem *regs; /* virt. base address, if any */
struct serial_rs485 rs485; /* rs485 settings */
+ int rts_gpio; /* optional RTS GPIO */
};
/* Touchscreen Controller */
projects / firefly-linux-kernel-4.4.55.git / commitdiff