cregit-Linux how code gets into the kernel

Release 4.14 arch/powerpc/include/asm/tsi108.h

/*
 * common routine and memory layout for Tundra TSI108(Grendel) host bridge
 * memory controller.
 *
 * Author: Jacob Pan (jacob.pan@freescale.com)
 *         Alex Bounine (alexandreb@tundra.com)
 *
 * Copyright 2004-2006 Freescale Semiconductor, Inc.
 *
 * 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 __PPC_KERNEL_TSI108_H

#define __PPC_KERNEL_TSI108_H

#include <asm/pci-bridge.h>

/* Size of entire register space */

#define TSI108_REG_SIZE		(0x10000)

/* Sizes of register spaces for individual blocks */

#define TSI108_HLP_SIZE		0x1000

#define TSI108_PCI_SIZE		0x1000

#define TSI108_CLK_SIZE		0x1000

#define TSI108_PB_SIZE		0x1000

#define TSI108_SD_SIZE		0x1000

#define TSI108_DMA_SIZE		0x1000

#define TSI108_ETH_SIZE		0x1000

#define TSI108_I2C_SIZE		0x400

#define TSI108_MPIC_SIZE	0x400

#define TSI108_UART0_SIZE	0x200

#define TSI108_GPIO_SIZE	0x200

#define TSI108_UART1_SIZE	0x200

/* Offsets within Tsi108(A) CSR space for individual blocks */

#define TSI108_HLP_OFFSET	0x0000

#define TSI108_PCI_OFFSET	0x1000

#define TSI108_CLK_OFFSET	0x2000

#define TSI108_PB_OFFSET	0x3000

#define TSI108_SD_OFFSET	0x4000

#define TSI108_DMA_OFFSET	0x5000

#define TSI108_ETH_OFFSET	0x6000

#define TSI108_I2C_OFFSET	0x7000

#define TSI108_MPIC_OFFSET	0x7400

#define TSI108_UART0_OFFSET	0x7800

#define TSI108_GPIO_OFFSET	0x7A00

#define TSI108_UART1_OFFSET	0x7C00

/* Tsi108 registers used by common code components */

#define TSI108_PCI_CSR		(0x004)

#define TSI108_PCI_IRP_CFG_CTL	(0x180)

#define TSI108_PCI_IRP_STAT	(0x184)

#define TSI108_PCI_IRP_ENABLE	(0x188)

#define TSI108_PCI_IRP_INTAD	(0x18C)


#define TSI108_PCI_IRP_STAT_P_INT	(0x00400000)

#define TSI108_PCI_IRP_ENABLE_P_INT	(0x00400000)


#define TSI108_CG_PWRUP_STATUS	(0x234)


#define TSI108_PB_ISR		(0x00C)

#define TSI108_PB_ERRCS		(0x404)

#define TSI108_PB_AERR		(0x408)


#define TSI108_PB_ERRCS_ES		(1 << 1)

#define TSI108_PB_ISR_PBS_RD_ERR	(1 << 8)


#define TSI108_PCI_CFG_SIZE		(0x01000000)

/*
 * PHY Configuration Options
 *
 * Specify "bcm54xx" in the compatible property of your device tree phy
 * nodes if your board uses the Broadcom PHYs
 */

#define TSI108_PHY_MV88E	0	
/* Marvel 88Exxxx PHY */

#define TSI108_PHY_BCM54XX	1	
/* Broadcom BCM54xx PHY */

/* Global variables */

extern u32 tsi108_pci_cfg_base;
/* Exported functions */

extern int tsi108_direct_write_config(struct pci_bus *bus, unsigned int devfn,
				      int offset, int len, u32 val);
extern int tsi108_direct_read_config(struct pci_bus *bus, unsigned int devfn,
				     int offset, int len, u32 * val);
extern void tsi108_clear_pci_error(u32 pci_cfg_base);

extern phys_addr_t get_csrbase(void);

typedef struct {
	
u32 regs;		/* hw registers base address */
	
u32 phyregs;		/* phy registers base address */
	
u16 phy;		/* phy address */
	
u16 irq_num;		/* irq number */
	
u8 mac_addr[6];		/* phy mac address */
	
u16 phy_type;	/* type of phy on board */

} hw_info;

extern u32 get_vir_csrbase(void);
extern u32 tsi108_csr_vir_base;


static inline u32 tsi108_read_reg(u32 reg_offset) { return in_be32((volatile u32 *)(tsi108_csr_vir_base + reg_offset)); }

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static inline void tsi108_write_reg(u32 reg_offset, u32 val) { out_be32((volatile u32 *)(tsi108_csr_vir_base + reg_offset), val); }

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#endif /* __PPC_KERNEL_TSI108_H */

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