arch/arm/mach-davinci/da850.c

Source file repositories/reference/linux-study-clean/arch/arm/mach-davinci/da850.c

File Facts

System
Linux kernel
Corpus path
arch/arm/mach-davinci/da850.c
Extension
.c
Size
13507 bytes
Lines
369
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * TI DA850/OMAP-L138 chip specific setup
 *
 * Copyright (C) 2009 Texas Instruments Incorporated - https://www.ti.com/
 *
 * Original Copyrights follow:
 *
 * 2009 (c) MontaVista Software, Inc.
 */

#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/mfd/da8xx-cfgchip.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <clocksource/timer-davinci.h>

#include <asm/mach/map.h>

#include "common.h"
#include "cputype.h"
#include "da8xx.h"
#include "hardware.h"
#include "pm.h"
#include "irqs.h"
#include "mux.h"

#define DA850_PLL1_BASE		0x01e1a000
#define DA850_TIMER64P2_BASE	0x01f0c000
#define DA850_TIMER64P3_BASE	0x01f0d000

#define DA850_REF_FREQ		24000000

/*
 * Device specific mux setup
 *
 *		soc	description	mux	mode	mode	mux	dbg
 *					reg	offset	mask	mode
 */
static const struct mux_config da850_pins[] = {
#ifdef CONFIG_DAVINCI_MUX
	/* UART0 function */
	MUX_CFG(DA850, NUART0_CTS,	3,	24,	15,	2,	false)
	MUX_CFG(DA850, NUART0_RTS,	3,	28,	15,	2,	false)
	MUX_CFG(DA850, UART0_RXD,	3,	16,	15,	2,	false)
	MUX_CFG(DA850, UART0_TXD,	3,	20,	15,	2,	false)
	/* UART1 function */
	MUX_CFG(DA850, UART1_RXD,	4,	24,	15,	2,	false)
	MUX_CFG(DA850, UART1_TXD,	4,	28,	15,	2,	false)
	/* UART2 function */
	MUX_CFG(DA850, UART2_RXD,	4,	16,	15,	2,	false)
	MUX_CFG(DA850, UART2_TXD,	4,	20,	15,	2,	false)
	/* I2C1 function */
	MUX_CFG(DA850, I2C1_SCL,	4,	16,	15,	4,	false)
	MUX_CFG(DA850, I2C1_SDA,	4,	20,	15,	4,	false)
	/* I2C0 function */
	MUX_CFG(DA850, I2C0_SDA,	4,	12,	15,	2,	false)
	MUX_CFG(DA850, I2C0_SCL,	4,	8,	15,	2,	false)
	/* EMAC function */
	MUX_CFG(DA850, MII_TXEN,	2,	4,	15,	8,	false)
	MUX_CFG(DA850, MII_TXCLK,	2,	8,	15,	8,	false)
	MUX_CFG(DA850, MII_COL,		2,	12,	15,	8,	false)
	MUX_CFG(DA850, MII_TXD_3,	2,	16,	15,	8,	false)
	MUX_CFG(DA850, MII_TXD_2,	2,	20,	15,	8,	false)
	MUX_CFG(DA850, MII_TXD_1,	2,	24,	15,	8,	false)
	MUX_CFG(DA850, MII_TXD_0,	2,	28,	15,	8,	false)
	MUX_CFG(DA850, MII_RXCLK,	3,	0,	15,	8,	false)
	MUX_CFG(DA850, MII_RXDV,	3,	4,	15,	8,	false)
	MUX_CFG(DA850, MII_RXER,	3,	8,	15,	8,	false)
	MUX_CFG(DA850, MII_CRS,		3,	12,	15,	8,	false)
	MUX_CFG(DA850, MII_RXD_3,	3,	16,	15,	8,	false)
	MUX_CFG(DA850, MII_RXD_2,	3,	20,	15,	8,	false)
	MUX_CFG(DA850, MII_RXD_1,	3,	24,	15,	8,	false)
	MUX_CFG(DA850, MII_RXD_0,	3,	28,	15,	8,	false)
	MUX_CFG(DA850, MDIO_CLK,	4,	0,	15,	8,	false)
	MUX_CFG(DA850, MDIO_D,		4,	4,	15,	8,	false)
	MUX_CFG(DA850, RMII_TXD_0,	14,	12,	15,	8,	false)
	MUX_CFG(DA850, RMII_TXD_1,	14,	8,	15,	8,	false)
	MUX_CFG(DA850, RMII_TXEN,	14,	16,	15,	8,	false)
	MUX_CFG(DA850, RMII_CRS_DV,	15,	4,	15,	8,	false)
	MUX_CFG(DA850, RMII_RXD_0,	14,	24,	15,	8,	false)
	MUX_CFG(DA850, RMII_RXD_1,	14,	20,	15,	8,	false)
	MUX_CFG(DA850, RMII_RXER,	14,	28,	15,	8,	false)
	MUX_CFG(DA850, RMII_MHZ_50_CLK,	15,	0,	15,	0,	false)
	/* McASP function */
	MUX_CFG(DA850,	ACLKR,		0,	0,	15,	1,	false)
	MUX_CFG(DA850,	ACLKX,		0,	4,	15,	1,	false)

Annotation

Implementation Notes