arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h

Source file repositories/reference/linux-study-clean/arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h

File Facts

System
Linux kernel
Corpus path
arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h
Extension
.h
Size
4315 bytes
Lines
105
Domain
Architecture Layer
Bucket
arch/mips
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

#ifndef BCM63XX_IO_H_
#define BCM63XX_IO_H_

#include <asm/mach-bcm63xx/bcm63xx_cpu.h>

/*
 * Physical memory map, RAM is mapped at 0x0.
 *
 * Note that size MUST be a power of two.
 */
#define BCM_PCMCIA_COMMON_BASE_PA	(0x20000000)
#define BCM_PCMCIA_COMMON_SIZE		(16 * 1024 * 1024)
#define BCM_PCMCIA_COMMON_END_PA	(BCM_PCMCIA_COMMON_BASE_PA +	\
					 BCM_PCMCIA_COMMON_SIZE - 1)

#define BCM_PCMCIA_ATTR_BASE_PA		(0x21000000)
#define BCM_PCMCIA_ATTR_SIZE		(16 * 1024 * 1024)
#define BCM_PCMCIA_ATTR_END_PA		(BCM_PCMCIA_ATTR_BASE_PA +	\
					 BCM_PCMCIA_ATTR_SIZE - 1)

#define BCM_PCMCIA_IO_BASE_PA		(0x22000000)
#define BCM_PCMCIA_IO_SIZE		(64 * 1024)
#define BCM_PCMCIA_IO_END_PA		(BCM_PCMCIA_IO_BASE_PA +	\
					BCM_PCMCIA_IO_SIZE - 1)

#define BCM_PCI_MEM_BASE_PA		(0x30000000)
#define BCM_PCI_MEM_SIZE		(128 * 1024 * 1024)
#define BCM_PCI_MEM_END_PA		(BCM_PCI_MEM_BASE_PA +		\
					BCM_PCI_MEM_SIZE - 1)

#define BCM_PCI_IO_BASE_PA		(0x08000000)
#define BCM_PCI_IO_SIZE			(64 * 1024)
#define BCM_PCI_IO_END_PA		(BCM_PCI_IO_BASE_PA +		\
					BCM_PCI_IO_SIZE - 1)
#define BCM_PCI_IO_HALF_PA		(BCM_PCI_IO_BASE_PA +		\
					(BCM_PCI_IO_SIZE / 2) - 1)

#define BCM_CB_MEM_BASE_PA		(0x38000000)
#define BCM_CB_MEM_SIZE			(128 * 1024 * 1024)
#define BCM_CB_MEM_END_PA		(BCM_CB_MEM_BASE_PA +		\
					BCM_CB_MEM_SIZE - 1)

#define BCM_PCIE_MEM_BASE_PA		0x10f00000
#define BCM_PCIE_MEM_SIZE		(16 * 1024 * 1024)
#define BCM_PCIE_MEM_END_PA		(BCM_PCIE_MEM_BASE_PA +		\
					BCM_PCIE_MEM_SIZE - 1)

/*
 * Internal registers are accessed through KSEG3
 */
#define BCM_REGS_VA(x)	((void __iomem *)(x))

#define bcm_readb(a)	(*(volatile unsigned char *)	BCM_REGS_VA(a))
#define bcm_readw(a)	(*(volatile unsigned short *)	BCM_REGS_VA(a))
#define bcm_readl(a)	(*(volatile unsigned int *)	BCM_REGS_VA(a))
#define bcm_readq(a)	(*(volatile u64 *)		BCM_REGS_VA(a))
#define bcm_writeb(v, a) (*(volatile unsigned char *) BCM_REGS_VA((a)) = (v))
#define bcm_writew(v, a) (*(volatile unsigned short *) BCM_REGS_VA((a)) = (v))
#define bcm_writel(v, a) (*(volatile unsigned int *) BCM_REGS_VA((a)) = (v))
#define bcm_writeq(v, a) (*(volatile u64 *) BCM_REGS_VA((a)) = (v))

/*
 * IO helpers to access register set for current CPU
 */
#define bcm_rset_readb(s, o)	bcm_readb(bcm63xx_regset_address(s) + (o))
#define bcm_rset_readw(s, o)	bcm_readw(bcm63xx_regset_address(s) + (o))
#define bcm_rset_readl(s, o)	bcm_readl(bcm63xx_regset_address(s) + (o))
#define bcm_rset_writeb(s, v, o)	bcm_writeb((v), \
					bcm63xx_regset_address(s) + (o))
#define bcm_rset_writew(s, v, o)	bcm_writew((v), \
					bcm63xx_regset_address(s) + (o))
#define bcm_rset_writel(s, v, o)	bcm_writel((v), \
					bcm63xx_regset_address(s) + (o))

/*
 * helpers for frequently used register sets
 */
#define bcm_perf_readl(o)	bcm_rset_readl(RSET_PERF, (o))
#define bcm_perf_writel(v, o)	bcm_rset_writel(RSET_PERF, (v), (o))
#define bcm_timer_readl(o)	bcm_rset_readl(RSET_TIMER, (o))
#define bcm_timer_writel(v, o)	bcm_rset_writel(RSET_TIMER, (v), (o))
#define bcm_wdt_readl(o)	bcm_rset_readl(RSET_WDT, (o))
#define bcm_wdt_writel(v, o)	bcm_rset_writel(RSET_WDT, (v), (o))
#define bcm_gpio_readl(o)	bcm_rset_readl(RSET_GPIO, (o))
#define bcm_gpio_writel(v, o)	bcm_rset_writel(RSET_GPIO, (v), (o))
#define bcm_uart0_readl(o)	bcm_rset_readl(RSET_UART0, (o))
#define bcm_uart0_writel(v, o)	bcm_rset_writel(RSET_UART0, (v), (o))
#define bcm_mpi_readl(o)	bcm_rset_readl(RSET_MPI, (o))
#define bcm_mpi_writel(v, o)	bcm_rset_writel(RSET_MPI, (v), (o))
#define bcm_pcmcia_readl(o)	bcm_rset_readl(RSET_PCMCIA, (o))

Annotation

Implementation Notes