Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

5 files changed, 546 insertions, 0 deletions

diff --git a/include/soc/at91/at91sam9_ddrsdr.h b/include/soc/at91/at91sam9_ddrsdr.h
new file mode 100644
index 000000000..ffdec6f82
--- /dev/null
+++ b/include/soc/at91/at91sam9_ddrsdr.h
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Header file for the Atmel DDR/SDR SDRAM Controller
+ *
+ * Copyright (C) 2010 Atmel Corporation
+ *	Nicolas Ferre <nicolas.ferre@atmel.com>
+ */
+#ifndef AT91SAM9_DDRSDR_H
+#define AT91SAM9_DDRSDR_H
+
+#define AT91_DDRSDRC_MR		0x00	/* Mode Register */
+#define		AT91_DDRSDRC_MODE	(0x7 << 0)		/* Command Mode */
+#define			AT91_DDRSDRC_MODE_NORMAL	0
+#define			AT91_DDRSDRC_MODE_NOP		1
+#define			AT91_DDRSDRC_MODE_PRECHARGE	2
+#define			AT91_DDRSDRC_MODE_LMR		3
+#define			AT91_DDRSDRC_MODE_REFRESH	4
+#define			AT91_DDRSDRC_MODE_EXT_LMR	5
+#define			AT91_DDRSDRC_MODE_DEEP		6
+
+#define AT91_DDRSDRC_RTR	0x04	/* Refresh Timer Register */
+#define		AT91_DDRSDRC_COUNT	(0xfff << 0)		/* Refresh Timer Counter */
+
+#define AT91_DDRSDRC_CR		0x08	/* Configuration Register */
+#define		AT91_DDRSDRC_NC		(3 << 0)		/* Number of Column Bits */
+#define			AT91_DDRSDRC_NC_SDR8	(0 << 0)
+#define			AT91_DDRSDRC_NC_SDR9	(1 << 0)
+#define			AT91_DDRSDRC_NC_SDR10	(2 << 0)
+#define			AT91_DDRSDRC_NC_SDR11	(3 << 0)
+#define			AT91_DDRSDRC_NC_DDR9	(0 << 0)
+#define			AT91_DDRSDRC_NC_DDR10	(1 << 0)
+#define			AT91_DDRSDRC_NC_DDR11	(2 << 0)
+#define			AT91_DDRSDRC_NC_DDR12	(3 << 0)
+#define		AT91_DDRSDRC_NR		(3 << 2)		/* Number of Row Bits */
+#define			AT91_DDRSDRC_NR_11	(0 << 2)
+#define			AT91_DDRSDRC_NR_12	(1 << 2)
+#define			AT91_DDRSDRC_NR_13	(2 << 2)
+#define			AT91_DDRSDRC_NR_14	(3 << 2)
+#define		AT91_DDRSDRC_CAS	(7 << 4)		/* CAS Latency */
+#define			AT91_DDRSDRC_CAS_2	(2 << 4)
+#define			AT91_DDRSDRC_CAS_3	(3 << 4)
+#define			AT91_DDRSDRC_CAS_25	(6 << 4)
+#define		AT91_DDRSDRC_RST_DLL	(1 << 7)		/* Reset DLL */
+#define		AT91_DDRSDRC_DICDS	(1 << 8)		/* Output impedance control */
+#define		AT91_DDRSDRC_DIS_DLL	(1 << 9)		/* Disable DLL [SAM9 Only] */
+#define		AT91_DDRSDRC_OCD	(1 << 12)		/* Off-Chip Driver [SAM9 Only] */
+#define		AT91_DDRSDRC_DQMS	(1 << 16)		/* Mask Data is Shared [SAM9 Only] */
+#define		AT91_DDRSDRC_ACTBST	(1 << 18)		/* Active Bank X to Burst Stop Read Access Bank Y [SAM9 Only] */
+
+#define AT91_DDRSDRC_T0PR	0x0C	/* Timing 0 Register */
+#define		AT91_DDRSDRC_TRAS	(0xf <<  0)		/* Active to Precharge delay */
+#define		AT91_DDRSDRC_TRCD	(0xf <<  4)		/* Row to Column delay */
+#define		AT91_DDRSDRC_TWR	(0xf <<  8)		/* Write recovery delay */
+#define		AT91_DDRSDRC_TRC	(0xf << 12)		/* Row cycle delay */
+#define		AT91_DDRSDRC_TRP	(0xf << 16)		/* Row precharge delay */
+#define		AT91_DDRSDRC_TRRD	(0xf << 20)		/* Active BankA to BankB */
+#define		AT91_DDRSDRC_TWTR	(0x7 << 24)		/* Internal Write to Read delay */
+#define		AT91_DDRSDRC_RED_WRRD	(0x1 << 27)		/* Reduce Write to Read Delay [SAM9 Only] */
+#define		AT91_DDRSDRC_TMRD	(0xf << 28)		/* Load mode to active/refresh delay */
+
+#define AT91_DDRSDRC_T1PR	0x10	/* Timing 1 Register */
+#define		AT91_DDRSDRC_TRFC	(0x1f << 0)		/* Row Cycle Delay */
+#define		AT91_DDRSDRC_TXSNR	(0xff << 8)		/* Exit self-refresh to non-read */
+#define		AT91_DDRSDRC_TXSRD	(0xff << 16)		/* Exit self-refresh to read */
+#define		AT91_DDRSDRC_TXP	(0xf  << 24)		/* Exit power-down delay */
+
+#define AT91_DDRSDRC_T2PR	0x14	/* Timing 2 Register [SAM9 Only] */
+#define		AT91_DDRSDRC_TXARD	(0xf  << 0)		/* Exit active power down delay to read command in mode "Fast Exit" */
+#define		AT91_DDRSDRC_TXARDS	(0xf  << 4)		/* Exit active power down delay to read command in mode "Slow Exit" */
+#define		AT91_DDRSDRC_TRPA	(0xf  << 8)		/* Row Precharge All delay */
+#define		AT91_DDRSDRC_TRTP	(0x7  << 12)		/* Read to Precharge delay */
+
+#define AT91_DDRSDRC_LPR	0x1C	/* Low Power Register */
+#define		AT91_DDRSDRC_LPCB	(3 << 0)		/* Low-power Configurations */
+#define			AT91_DDRSDRC_LPCB_DISABLE		0
+#define			AT91_DDRSDRC_LPCB_SELF_REFRESH		1
+#define			AT91_DDRSDRC_LPCB_POWER_DOWN		2
+#define			AT91_DDRSDRC_LPCB_DEEP_POWER_DOWN	3
+#define		AT91_DDRSDRC_CLKFR	(1 << 2)	/* Clock Frozen */
+#define		AT91_DDRSDRC_LPDDR2_PWOFF	(1 << 3)	/* LPDDR Power Off */
+#define		AT91_DDRSDRC_PASR	(7 << 4)	/* Partial Array Self Refresh */
+#define		AT91_DDRSDRC_TCSR	(3 << 8)	/* Temperature Compensated Self Refresh */
+#define		AT91_DDRSDRC_DS		(3 << 10)	/* Drive Strength */
+#define		AT91_DDRSDRC_TIMEOUT	(3 << 12)	/* Time to define when Low Power Mode is enabled */
+#define			AT91_DDRSDRC_TIMEOUT_0_CLK_CYCLES	(0 << 12)
+#define			AT91_DDRSDRC_TIMEOUT_64_CLK_CYCLES	(1 << 12)
+#define			AT91_DDRSDRC_TIMEOUT_128_CLK_CYCLES	(2 << 12)
+#define		AT91_DDRSDRC_APDE	(1 << 16)	 /* Active power down exit time */
+#define		AT91_DDRSDRC_UPD_MR	(3 << 20)	 /* Update load mode register and extended mode register */
+
+#define AT91_DDRSDRC_MDR	0x20	/* Memory Device Register */
+#define		AT91_DDRSDRC_MD		(7 << 0)	/* Memory Device Type */
+#define			AT91_DDRSDRC_MD_SDR		0
+#define			AT91_DDRSDRC_MD_LOW_POWER_SDR	1
+#define			AT91_DDRSDRC_MD_LOW_POWER_DDR	3
+#define			AT91_DDRSDRC_MD_LPDDR3		5
+#define			AT91_DDRSDRC_MD_DDR2		6	/* [SAM9 Only] */
+#define			AT91_DDRSDRC_MD_LPDDR2		7
+#define		AT91_DDRSDRC_DBW	(1 << 4)		/* Data Bus Width */
+#define			AT91_DDRSDRC_DBW_32BITS		(0 <<  4)
+#define			AT91_DDRSDRC_DBW_16BITS		(1 <<  4)
+
+#define AT91_DDRSDRC_DLL	0x24	/* DLL Information Register */
+#define		AT91_DDRSDRC_MDINC	(1 << 0)		/* Master Delay increment */
+#define		AT91_DDRSDRC_MDDEC	(1 << 1)		/* Master Delay decrement */
+#define		AT91_DDRSDRC_MDOVF	(1 << 2)		/* Master Delay Overflow */
+#define		AT91_DDRSDRC_MDVAL	(0xff <<  8)		/* Master Delay value */
+
+#define AT91_DDRSDRC_HS		0x2C	/* High Speed Register [SAM9 Only] */
+#define		AT91_DDRSDRC_DIS_ATCP_RD	(1 << 2)	/* Anticip read access is disabled */
+
+#define AT91_DDRSDRC_DELAY(n)	(0x30 + (0x4 * (n)))	/* Delay I/O Register n */
+
+#define AT91_DDRSDRC_WPMR	0xE4	/* Write Protect Mode Register [SAM9 Only] */
+#define		AT91_DDRSDRC_WP		(1 << 0)		/* Write protect enable */
+#define		AT91_DDRSDRC_WPKEY	(0xffffff << 8)		/* Write protect key */
+#define		AT91_DDRSDRC_KEY	(0x444452 << 8)		/* Write protect key = "DDR" */
+
+#define AT91_DDRSDRC_WPSR	0xE8	/* Write Protect Status Register [SAM9 Only] */
+#define		AT91_DDRSDRC_WPVS	(1 << 0)		/* Write protect violation status */
+#define		AT91_DDRSDRC_WPVSRC	(0xffff << 8)		/* Write protect violation source */
+
+#endif
diff --git a/include/soc/at91/at91sam9_sdramc.h b/include/soc/at91/at91sam9_sdramc.h
new file mode 100644
index 000000000..e816f9979
--- /dev/null
+++ b/include/soc/at91/at91sam9_sdramc.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * arch/arm/mach-at91/include/mach/at91sam9_sdramc.h
+ *
+ * Copyright (C) 2007 Andrew Victor
+ * Copyright (C) 2007 Atmel Corporation.
+ *
+ * SDRAM Controllers (SDRAMC) - System peripherals registers.
+ * Based on AT91SAM9261 datasheet revision D.
+ */
+
+#ifndef AT91SAM9_SDRAMC_H
+#define AT91SAM9_SDRAMC_H
+
+/* SDRAM Controller (SDRAMC) registers */
+#define AT91_SDRAMC_MR		0x00	/* SDRAM Controller Mode Register */
+#define		AT91_SDRAMC_MODE	(0xf << 0)		/* Command Mode */
+#define			AT91_SDRAMC_MODE_NORMAL		0
+#define			AT91_SDRAMC_MODE_NOP		1
+#define			AT91_SDRAMC_MODE_PRECHARGE	2
+#define			AT91_SDRAMC_MODE_LMR		3
+#define			AT91_SDRAMC_MODE_REFRESH	4
+#define			AT91_SDRAMC_MODE_EXT_LMR	5
+#define			AT91_SDRAMC_MODE_DEEP		6
+
+#define AT91_SDRAMC_TR		0x04	/* SDRAM Controller Refresh Timer Register */
+#define		AT91_SDRAMC_COUNT	(0xfff << 0)		/* Refresh Timer Counter */
+
+#define AT91_SDRAMC_CR		0x08	/* SDRAM Controller Configuration Register */
+#define		AT91_SDRAMC_NC		(3 << 0)		/* Number of Column Bits */
+#define			AT91_SDRAMC_NC_8	(0 << 0)
+#define			AT91_SDRAMC_NC_9	(1 << 0)
+#define			AT91_SDRAMC_NC_10	(2 << 0)
+#define			AT91_SDRAMC_NC_11	(3 << 0)
+#define		AT91_SDRAMC_NR		(3 << 2)		/* Number of Row Bits */
+#define			AT91_SDRAMC_NR_11	(0 << 2)
+#define			AT91_SDRAMC_NR_12	(1 << 2)
+#define			AT91_SDRAMC_NR_13	(2 << 2)
+#define		AT91_SDRAMC_NB		(1 << 4)		/* Number of Banks */
+#define			AT91_SDRAMC_NB_2	(0 << 4)
+#define			AT91_SDRAMC_NB_4	(1 << 4)
+#define		AT91_SDRAMC_CAS		(3 << 5)		/* CAS Latency */
+#define			AT91_SDRAMC_CAS_1	(1 << 5)
+#define			AT91_SDRAMC_CAS_2	(2 << 5)
+#define			AT91_SDRAMC_CAS_3	(3 << 5)
+#define		AT91_SDRAMC_DBW		(1 << 7)		/* Data Bus Width */
+#define			AT91_SDRAMC_DBW_32	(0 << 7)
+#define			AT91_SDRAMC_DBW_16	(1 << 7)
+#define		AT91_SDRAMC_TWR		(0xf <<  8)		/* Write Recovery Delay */
+#define		AT91_SDRAMC_TRC		(0xf << 12)		/* Row Cycle Delay */
+#define		AT91_SDRAMC_TRP		(0xf << 16)		/* Row Precharge Delay */
+#define		AT91_SDRAMC_TRCD	(0xf << 20)		/* Row to Column Delay */
+#define		AT91_SDRAMC_TRAS	(0xf << 24)		/* Active to Precharge Delay */
+#define		AT91_SDRAMC_TXSR	(0xf << 28)		/* Exit Self Refresh to Active Delay */
+
+#define AT91_SDRAMC_LPR		0x10	/* SDRAM Controller Low Power Register */
+#define		AT91_SDRAMC_LPCB		(3 << 0)	/* Low-power Configurations */
+#define			AT91_SDRAMC_LPCB_DISABLE		0
+#define			AT91_SDRAMC_LPCB_SELF_REFRESH		1
+#define			AT91_SDRAMC_LPCB_POWER_DOWN		2
+#define			AT91_SDRAMC_LPCB_DEEP_POWER_DOWN	3
+#define		AT91_SDRAMC_PASR		(7 << 4)	/* Partial Array Self Refresh */
+#define		AT91_SDRAMC_TCSR		(3 << 8)	/* Temperature Compensated Self Refresh */
+#define		AT91_SDRAMC_DS			(3 << 10)	/* Drive Strength */
+#define		AT91_SDRAMC_TIMEOUT		(3 << 12)	/* Time to define when Low Power Mode is enabled */
+#define			AT91_SDRAMC_TIMEOUT_0_CLK_CYCLES	(0 << 12)
+#define			AT91_SDRAMC_TIMEOUT_64_CLK_CYCLES	(1 << 12)
+#define			AT91_SDRAMC_TIMEOUT_128_CLK_CYCLES	(2 << 12)
+
+#define AT91_SDRAMC_IER		0x14	/* SDRAM Controller Interrupt Enable Register */
+#define AT91_SDRAMC_IDR		0x18	/* SDRAM Controller Interrupt Disable Register */
+#define AT91_SDRAMC_IMR		0x1C	/* SDRAM Controller Interrupt Mask Register */
+#define AT91_SDRAMC_ISR		0x20	/* SDRAM Controller Interrupt Status Register */
+#define		AT91_SDRAMC_RES		(1 << 0)		/* Refresh Error Status */
+
+#define AT91_SDRAMC_MDR		0x24	/* SDRAM Memory Device Register */
+#define		AT91_SDRAMC_MD		(3 << 0)		/* Memory Device Type */
+#define			AT91_SDRAMC_MD_SDRAM		0
+#define			AT91_SDRAMC_MD_LOW_POWER_SDRAM	1
+
+#endif
diff --git a/include/soc/at91/atmel-secumod.h b/include/soc/at91/atmel-secumod.h
new file mode 100644
index 000000000..8dbdafe0a
--- /dev/null
+++ b/include/soc/at91/atmel-secumod.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Atmel Security Module register offsets and bit definitions.
+ *
+ * Copyright (C) 2016 Atmel
+ *
+ * Author: Alexandre Belloni <alexandre.belloni@free-electrons.com>
+ */
+
+#ifndef _LINUX_SOC_AT91_ATMEL_SECUMOD_H
+#define _LINUX_SOC_AT91_ATMEL_SECUMOD_H
+
+#define AT91_SECUMOD_RAMRDY	0x14
+#define AT91_SECUMOD_RAMRDY_READY	BIT(0)
+
+#endif /* _LINUX_SOC_AT91_ATMEL_SECUMOD_H */
diff --git a/include/soc/at91/atmel-sfr.h b/include/soc/at91/atmel-sfr.h
new file mode 100644
index 000000000..c71c0318b
--- /dev/null
+++ b/include/soc/at91/atmel-sfr.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Atmel SFR (Special Function Registers) register offsets and bit definitions.
+ *
+ * Copyright (C) 2016 Atmel
+ *
+ * Author: Ludovic Desroches <ludovic.desroches@atmel.com>
+ */
+
+#ifndef _LINUX_MFD_SYSCON_ATMEL_SFR_H
+#define _LINUX_MFD_SYSCON_ATMEL_SFR_H
+
+#define AT91_SFR_DDRCFG		0x04	/* DDR Configuration Register */
+#define AT91_SFR_CCFG_EBICSA	0x04	/* EBI Chip Select Register */
+/* 0x08 ~ 0x0c: Reserved */
+#define AT91_SFR_OHCIICR	0x10	/* OHCI INT Configuration Register */
+#define AT91_SFR_OHCIISR	0x14	/* OHCI INT Status Register */
+#define AT91_SFR_UTMICKTRIM	0x30	/* UTMI Clock Trimming Register */
+#define AT91_SFR_UTMISWAP	0x3c	/* UTMI DP/DM Pin Swapping Register */
+#define AT91_SFR_LS		0x7c	/* Light Sleep Register */
+#define AT91_SFR_I2SCLKSEL	0x90	/* I2SC Register */
+#define AT91_SFR_WPMR		0xe4	/* Write Protection Mode Register */
+
+/* Field definitions */
+#define AT91_SFR_CCFG_EBI_CSA(cs, val)		((val) << (cs))
+#define AT91_SFR_CCFG_EBI_DBPUC			BIT(8)
+#define AT91_SFR_CCFG_EBI_DBPDC			BIT(9)
+#define AT91_SFR_CCFG_EBI_DRIVE			BIT(17)
+#define AT91_SFR_CCFG_NFD0_ON_D16		BIT(24)
+#define AT91_SFR_CCFG_DDR_MP_EN			BIT(25)
+
+#define AT91_SFR_OHCIICR_RES(x)			BIT(x)
+#define AT91_SFR_OHCIICR_ARIE			BIT(4)
+#define AT91_SFR_OHCIICR_APPSTART		BIT(5)
+#define AT91_SFR_OHCIICR_USB_SUSP(x)		BIT(8 + (x))
+#define AT91_SFR_OHCIICR_UDPPUDIS		BIT(23)
+#define AT91_OHCIICR_USB_SUSPEND		GENMASK(10, 8)
+
+#define AT91_SFR_OHCIISR_RIS(x)			BIT(x)
+
+#define AT91_UTMICKTRIM_FREQ			GENMASK(1, 0)
+
+#define AT91_SFR_UTMISWAP_PORT(x)		BIT(x)
+
+#define AT91_SFR_LS_VALUE(x)			BIT(x)
+#define AT91_SFR_LS_MEM_POWER_GATING_ULP1_EN	BIT(16)
+
+#define AT91_SFR_WPMR_WPEN			BIT(0)
+#define AT91_SFR_WPMR_WPKEY_MASK		GENMASK(31, 8)
+
+#endif /* _LINUX_MFD_SYSCON_ATMEL_SFR_H */
diff --git a/include/soc/at91/atmel_tcb.h b/include/soc/at91/atmel_tcb.h
new file mode 100644
index 000000000..1d7071dc0
--- /dev/null
+++ b/include/soc/at91/atmel_tcb.h
@@ -0,0 +1,275 @@
+/*
+ * Timer/Counter Unit (TC) registers.
+ *
+ * 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 __SOC_ATMEL_TCB_H
+#define __SOC_ATMEL_TCB_H
+
+#include <linux/compiler.h>
+#include <linux/list.h>
+
+/*
+ * Many 32-bit Atmel SOCs include one or more TC blocks, each of which holds
+ * three general-purpose 16-bit timers.  These timers share one register bank.
+ * Depending on the SOC, each timer may have its own clock and IRQ, or those
+ * may be shared by the whole TC block.
+ *
+ * These TC blocks may have up to nine external pins:  TCLK0..2 signals for
+ * clocks or clock gates, and per-timer TIOA and TIOB signals used for PWM
+ * or triggering.  Those pins need to be set up for use with the TC block,
+ * else they will be used as GPIOs or for a different controller.
+ *
+ * Although we expect each TC block to have a platform_device node, those
+ * nodes are not what drivers bind to.  Instead, they ask for a specific
+ * TC block, by number ... which is a common approach on systems with many
+ * timers.  Then they use clk_get() and platform_get_irq() to get clock and
+ * IRQ resources.
+ */
+
+struct clk;
+
+/**
+ * struct atmel_tcb_config - SoC data for a Timer/Counter Block
+ * @counter_width: size in bits of a timer counter register
+ * @has_gclk: boolean indicating if a timer counter has a generic clock
+ * @has_qdec: boolean indicating if a timer counter has a quadrature
+ * decoder.
+ */
+struct atmel_tcb_config {
+	size_t	counter_width;
+	bool    has_gclk;
+	bool    has_qdec;
+};
+
+/**
+ * struct atmel_tc - information about a Timer/Counter Block
+ * @pdev: physical device
+ * @regs: mapping through which the I/O registers can be accessed
+ * @id: block id
+ * @tcb_config: configuration data from SoC
+ * @irq: irq for each of the three channels
+ * @clk: internal clock source for each of the three channels
+ * @node: list node, for tclib internal use
+ * @allocated: if already used, for tclib internal use
+ *
+ * On some platforms, each TC channel has its own clocks and IRQs,
+ * while on others, all TC channels share the same clock and IRQ.
+ * Drivers should clk_enable() all the clocks they need even though
+ * all the entries in @clk may point to the same physical clock.
+ * Likewise, drivers should request irqs independently for each
+ * channel, but they must use IRQF_SHARED in case some of the entries
+ * in @irq are actually the same IRQ.
+ */
+struct atmel_tc {
+	struct platform_device	*pdev;
+	void __iomem		*regs;
+	int                     id;
+	const struct atmel_tcb_config *tcb_config;
+	int			irq[3];
+	struct clk		*clk[3];
+	struct clk		*slow_clk;
+	struct list_head	node;
+	bool			allocated;
+};
+
+extern struct atmel_tc *atmel_tc_alloc(unsigned block);
+extern void atmel_tc_free(struct atmel_tc *tc);
+
+/* platform-specific ATMEL_TC_TIMER_CLOCKx divisors (0 means 32KiHz) */
+extern const u8 atmel_tc_divisors[5];
+
+
+/*
+ * Two registers have block-wide controls.  These are: configuring the three
+ * "external" clocks (or event sources) used by the timer channels; and
+ * synchronizing the timers by resetting them all at once.
+ *
+ * "External" can mean "external to chip" using the TCLK0, TCLK1, or TCLK2
+ * signals.  Or, it can mean "external to timer", using the TIOA output from
+ * one of the other two timers that's being run in waveform mode.
+ */
+
+#define ATMEL_TC_BCR	0xc0		/* TC Block Control Register */
+#define     ATMEL_TC_SYNC	(1 << 0)	/* synchronize timers */
+
+#define ATMEL_TC_BMR	0xc4		/* TC Block Mode Register */
+#define     ATMEL_TC_TC0XC0S	(3 << 0)	/* external clock 0 source */
+#define        ATMEL_TC_TC0XC0S_TCLK0	(0 << 0)
+#define        ATMEL_TC_TC0XC0S_NONE	(1 << 0)
+#define        ATMEL_TC_TC0XC0S_TIOA1	(2 << 0)
+#define        ATMEL_TC_TC0XC0S_TIOA2	(3 << 0)
+#define     ATMEL_TC_TC1XC1S	(3 << 2)	/* external clock 1 source */
+#define        ATMEL_TC_TC1XC1S_TCLK1	(0 << 2)
+#define        ATMEL_TC_TC1XC1S_NONE	(1 << 2)
+#define        ATMEL_TC_TC1XC1S_TIOA0	(2 << 2)
+#define        ATMEL_TC_TC1XC1S_TIOA2	(3 << 2)
+#define     ATMEL_TC_TC2XC2S	(3 << 4)	/* external clock 2 source */
+#define        ATMEL_TC_TC2XC2S_TCLK2	(0 << 4)
+#define        ATMEL_TC_TC2XC2S_NONE	(1 << 4)
+#define        ATMEL_TC_TC2XC2S_TIOA0	(2 << 4)
+#define        ATMEL_TC_TC2XC2S_TIOA1	(3 << 4)
+
+
+/*
+ * Each TC block has three "channels", each with one counter and controls.
+ *
+ * Note that the semantics of ATMEL_TC_TIMER_CLOCKx (input clock selection
+ * when it's not "external") is silicon-specific.  AT91 platforms use one
+ * set of definitions; AVR32 platforms use a different set.  Don't hard-wire
+ * such knowledge into your code, use the global "atmel_tc_divisors" ...
+ * where index N is the divisor for clock N+1, else zero to indicate it uses
+ * the 32 KiHz clock.
+ *
+ * The timers can be chained in various ways, and operated in "waveform"
+ * generation mode (including PWM) or "capture" mode (to time events).  In
+ * both modes, behavior can be configured in many ways.
+ *
+ * Each timer has two I/O pins, TIOA and TIOB.  Waveform mode uses TIOA as a
+ * PWM output, and TIOB as either another PWM or as a trigger.  Capture mode
+ * uses them only as inputs.
+ */
+#define ATMEL_TC_CHAN(idx)	((idx)*0x40)
+#define ATMEL_TC_REG(idx, reg)	(ATMEL_TC_CHAN(idx) + ATMEL_TC_ ## reg)
+
+#define ATMEL_TC_CCR	0x00		/* Channel Control Register */
+#define     ATMEL_TC_CLKEN	(1 << 0)	/* clock enable */
+#define     ATMEL_TC_CLKDIS	(1 << 1)	/* clock disable */
+#define     ATMEL_TC_SWTRG	(1 << 2)	/* software trigger */
+
+#define ATMEL_TC_CMR	0x04		/* Channel Mode Register */
+
+/* Both modes share some CMR bits */
+#define     ATMEL_TC_TCCLKS	(7 << 0)	/* clock source */
+#define        ATMEL_TC_TIMER_CLOCK1	(0 << 0)
+#define        ATMEL_TC_TIMER_CLOCK2	(1 << 0)
+#define        ATMEL_TC_TIMER_CLOCK3	(2 << 0)
+#define        ATMEL_TC_TIMER_CLOCK4	(3 << 0)
+#define        ATMEL_TC_TIMER_CLOCK5	(4 << 0)
+#define        ATMEL_TC_XC0		(5 << 0)
+#define        ATMEL_TC_XC1		(6 << 0)
+#define        ATMEL_TC_XC2		(7 << 0)
+#define     ATMEL_TC_CLKI	(1 << 3)	/* clock invert */
+#define     ATMEL_TC_BURST	(3 << 4)	/* clock gating */
+#define        ATMEL_TC_GATE_NONE	(0 << 4)
+#define        ATMEL_TC_GATE_XC0	(1 << 4)
+#define        ATMEL_TC_GATE_XC1	(2 << 4)
+#define        ATMEL_TC_GATE_XC2	(3 << 4)
+#define     ATMEL_TC_WAVE	(1 << 15)	/* true = Waveform mode */
+
+/* CAPTURE mode CMR bits */
+#define     ATMEL_TC_LDBSTOP	(1 << 6)	/* counter stops on RB load */
+#define     ATMEL_TC_LDBDIS	(1 << 7)	/* counter disable on RB load */
+#define     ATMEL_TC_ETRGEDG	(3 << 8)	/* external trigger edge */
+#define        ATMEL_TC_ETRGEDG_NONE	(0 << 8)
+#define        ATMEL_TC_ETRGEDG_RISING	(1 << 8)
+#define        ATMEL_TC_ETRGEDG_FALLING	(2 << 8)
+#define        ATMEL_TC_ETRGEDG_BOTH	(3 << 8)
+#define     ATMEL_TC_ABETRG	(1 << 10)	/* external trigger is TIOA? */
+#define     ATMEL_TC_CPCTRG	(1 << 14)	/* RC compare trigger enable */
+#define     ATMEL_TC_LDRA	(3 << 16)	/* RA loading edge (of TIOA) */
+#define        ATMEL_TC_LDRA_NONE	(0 << 16)
+#define        ATMEL_TC_LDRA_RISING	(1 << 16)
+#define        ATMEL_TC_LDRA_FALLING	(2 << 16)
+#define        ATMEL_TC_LDRA_BOTH	(3 << 16)
+#define     ATMEL_TC_LDRB	(3 << 18)	/* RB loading edge (of TIOA) */
+#define        ATMEL_TC_LDRB_NONE	(0 << 18)
+#define        ATMEL_TC_LDRB_RISING	(1 << 18)
+#define        ATMEL_TC_LDRB_FALLING	(2 << 18)
+#define        ATMEL_TC_LDRB_BOTH	(3 << 18)
+
+/* WAVEFORM mode CMR bits */
+#define     ATMEL_TC_CPCSTOP	(1 <<  6)	/* RC compare stops counter */
+#define     ATMEL_TC_CPCDIS	(1 <<  7)	/* RC compare disables counter */
+#define     ATMEL_TC_EEVTEDG	(3 <<  8)	/* external event edge */
+#define        ATMEL_TC_EEVTEDG_NONE	(0 << 8)
+#define        ATMEL_TC_EEVTEDG_RISING	(1 << 8)
+#define        ATMEL_TC_EEVTEDG_FALLING	(2 << 8)
+#define        ATMEL_TC_EEVTEDG_BOTH	(3 << 8)
+#define     ATMEL_TC_EEVT	(3 << 10)	/* external event source */
+#define        ATMEL_TC_EEVT_TIOB	(0 << 10)
+#define        ATMEL_TC_EEVT_XC0	(1 << 10)
+#define        ATMEL_TC_EEVT_XC1	(2 << 10)
+#define        ATMEL_TC_EEVT_XC2	(3 << 10)
+#define     ATMEL_TC_ENETRG	(1 << 12)	/* external event is trigger */
+#define     ATMEL_TC_WAVESEL	(3 << 13)	/* waveform type */
+#define        ATMEL_TC_WAVESEL_UP	(0 << 13)
+#define        ATMEL_TC_WAVESEL_UPDOWN	(1 << 13)
+#define        ATMEL_TC_WAVESEL_UP_AUTO	(2 << 13)
+#define        ATMEL_TC_WAVESEL_UPDOWN_AUTO (3 << 13)
+#define     ATMEL_TC_ACPA	(3 << 16)	/* RA compare changes TIOA */
+#define        ATMEL_TC_ACPA_NONE	(0 << 16)
+#define        ATMEL_TC_ACPA_SET	(1 << 16)
+#define        ATMEL_TC_ACPA_CLEAR	(2 << 16)
+#define        ATMEL_TC_ACPA_TOGGLE	(3 << 16)
+#define     ATMEL_TC_ACPC	(3 << 18)	/* RC compare changes TIOA */
+#define        ATMEL_TC_ACPC_NONE	(0 << 18)
+#define        ATMEL_TC_ACPC_SET	(1 << 18)
+#define        ATMEL_TC_ACPC_CLEAR	(2 << 18)
+#define        ATMEL_TC_ACPC_TOGGLE	(3 << 18)
+#define     ATMEL_TC_AEEVT	(3 << 20)	/* external event changes TIOA */
+#define        ATMEL_TC_AEEVT_NONE	(0 << 20)
+#define        ATMEL_TC_AEEVT_SET	(1 << 20)
+#define        ATMEL_TC_AEEVT_CLEAR	(2 << 20)
+#define        ATMEL_TC_AEEVT_TOGGLE	(3 << 20)
+#define     ATMEL_TC_ASWTRG	(3 << 22)	/* software trigger changes TIOA */
+#define        ATMEL_TC_ASWTRG_NONE	(0 << 22)
+#define        ATMEL_TC_ASWTRG_SET	(1 << 22)
+#define        ATMEL_TC_ASWTRG_CLEAR	(2 << 22)
+#define        ATMEL_TC_ASWTRG_TOGGLE	(3 << 22)
+#define     ATMEL_TC_BCPB	(3 << 24)	/* RB compare changes TIOB */
+#define        ATMEL_TC_BCPB_NONE	(0 << 24)
+#define        ATMEL_TC_BCPB_SET	(1 << 24)
+#define        ATMEL_TC_BCPB_CLEAR	(2 << 24)
+#define        ATMEL_TC_BCPB_TOGGLE	(3 << 24)
+#define     ATMEL_TC_BCPC	(3 << 26)	/* RC compare changes TIOB */
+#define        ATMEL_TC_BCPC_NONE	(0 << 26)
+#define        ATMEL_TC_BCPC_SET	(1 << 26)
+#define        ATMEL_TC_BCPC_CLEAR	(2 << 26)
+#define        ATMEL_TC_BCPC_TOGGLE	(3 << 26)
+#define     ATMEL_TC_BEEVT	(3 << 28)	/* external event changes TIOB */
+#define        ATMEL_TC_BEEVT_NONE	(0 << 28)
+#define        ATMEL_TC_BEEVT_SET	(1 << 28)
+#define        ATMEL_TC_BEEVT_CLEAR	(2 << 28)
+#define        ATMEL_TC_BEEVT_TOGGLE	(3 << 28)
+#define     ATMEL_TC_BSWTRG	(3 << 30)	/* software trigger changes TIOB */
+#define        ATMEL_TC_BSWTRG_NONE	(0 << 30)
+#define        ATMEL_TC_BSWTRG_SET	(1 << 30)
+#define        ATMEL_TC_BSWTRG_CLEAR	(2 << 30)
+#define        ATMEL_TC_BSWTRG_TOGGLE	(3 << 30)
+
+#define ATMEL_TC_CV	0x10		/* counter Value */
+#define ATMEL_TC_RA	0x14		/* register A */
+#define ATMEL_TC_RB	0x18		/* register B */
+#define ATMEL_TC_RC	0x1c		/* register C */
+
+#define ATMEL_TC_SR	0x20		/* status (read-only) */
+/* Status-only flags */
+#define     ATMEL_TC_CLKSTA	(1 << 16)	/* clock enabled */
+#define     ATMEL_TC_MTIOA	(1 << 17)	/* TIOA mirror */
+#define     ATMEL_TC_MTIOB	(1 << 18)	/* TIOB mirror */
+
+#define ATMEL_TC_IER	0x24		/* interrupt enable (write-only) */
+#define ATMEL_TC_IDR	0x28		/* interrupt disable (write-only) */
+#define ATMEL_TC_IMR	0x2c		/* interrupt mask (read-only) */
+
+/* Status and IRQ flags */
+#define     ATMEL_TC_COVFS	(1 <<  0)	/* counter overflow */
+#define     ATMEL_TC_LOVRS	(1 <<  1)	/* load overrun */
+#define     ATMEL_TC_CPAS	(1 <<  2)	/* RA compare */
+#define     ATMEL_TC_CPBS	(1 <<  3)	/* RB compare */
+#define     ATMEL_TC_CPCS	(1 <<  4)	/* RC compare */
+#define     ATMEL_TC_LDRAS	(1 <<  5)	/* RA loading */
+#define     ATMEL_TC_LDRBS	(1 <<  6)	/* RB loading */
+#define     ATMEL_TC_ETRGS	(1 <<  7)	/* external trigger */
+#define     ATMEL_TC_ALL_IRQ	(ATMEL_TC_COVFS	| ATMEL_TC_LOVRS | \
+				 ATMEL_TC_CPAS | ATMEL_TC_CPBS | \
+				 ATMEL_TC_CPCS | ATMEL_TC_LDRAS | \
+				 ATMEL_TC_LDRBS | ATMEL_TC_ETRGS) \
+				 /* all IRQs */
+
+#endif