ixp425.h

omap osk环境下的bootloader,包含完整的uboot源代码

#define MSR_DCD		(1 << 7)	/* Data Carrier Detect */
#define MSR_RI		(1 << 6)	/* Ring Indicator */
#define MSR_DSR		(1 << 5)	/* Data Set Ready */
#define MSR_CTS		(1 << 4)	/* Clear To Send */
#define MSR_DDCD	(1 << 3)	/* Delta Data Carrier Detect */
#define MSR_TERI	(1 << 2)	/* Trailing Edge Ring Indicator */
#define MSR_DDSR	(1 << 1)	/* Delta Data Set Ready */
#define MSR_DCTS	(1 << 0)	/* Delta Clear To Send */

#define IXP425_CONSOLE_UART_BASE_VIRT IXP425_UART1_BASE_VIRT
#define IXP425_CONSOLE_UART_BASE_PHYS IXP425_UART1_BASE_PHYS
/*
 * Peripheral Space Registers
 */
#define IXP425_UART1_BASE_PHYS	(IXP425_PERIPHERAL_BASE_PHYS + 0x0000)
#define IXP425_UART2_BASE_PHYS	(IXP425_PERIPHERAL_BASE_PHYS + 0x1000)
#define IXP425_PMU_BASE_PHYS	(IXP425_PERIPHERAL_BASE_PHYS + 0x2000)
#define IXP425_INTC_BASE_PHYS	(IXP425_PERIPHERAL_BASE_PHYS + 0x3000)
#define IXP425_GPIO_BASE_PHYS	(IXP425_PERIPHERAL_BASE_PHYS + 0x4000)
#define IXP425_TIMER_BASE_PHYS	(IXP425_PERIPHERAL_BASE_PHYS + 0x5000)
#define IXP425_NPEA_BASE_PHYS	(IXP425_PERIPHERAL_BASE_PHYS + 0x6000)
#define IXP425_NPEB_BASE_PHYS	(IXP425_PERIPHERAL_BASE_PHYS + 0x7000)
#define IXP425_NPEC_BASE_PHYS	(IXP425_PERIPHERAL_BASE_PHYS + 0x8000)
#define IXP425_EthA_BASE_PHYS	(IXP425_PERIPHERAL_BASE_PHYS + 0x9000)
#define IXP425_EthB_BASE_PHYS	(IXP425_PERIPHERAL_BASE_PHYS + 0xA000)
#define IXP425_USB_BASE_PHYS	(IXP425_PERIPHERAL_BASE_PHYS + 0xB000)

#define IXP425_UART1_BASE_VIRT	(IXP425_PERIPHERAL_BASE_VIRT + 0x0000)
#define IXP425_UART2_BASE_VIRT	(IXP425_PERIPHERAL_BASE_VIRT + 0x1000)
#define IXP425_PMU_BASE_VIRT	(IXP425_PERIPHERAL_BASE_VIRT + 0x2000)
#define IXP425_INTC_BASE_VIRT	(IXP425_PERIPHERAL_BASE_VIRT + 0x3000)
#define IXP425_GPIO_BASE_VIRT	(IXP425_PERIPHERAL_BASE_VIRT + 0x4000)
#define IXP425_TIMER_BASE_VIRT	(IXP425_PERIPHERAL_BASE_VIRT + 0x5000)
#define IXP425_NPEA_BASE_VIRT	(IXP425_PERIPHERAL_BASE_VIRT + 0x6000)
#define IXP425_NPEB_BASE_VIRT	(IXP425_PERIPHERAL_BASE_VIRT + 0x7000)
#define IXP425_NPEC_BASE_VIRT	(IXP425_PERIPHERAL_BASE_VIRT + 0x8000)
#define IXP425_EthA_BASE_VIRT	(IXP425_PERIPHERAL_BASE_VIRT + 0x9000)
#define IXP425_EthB_BASE_VIRT	(IXP425_PERIPHERAL_BASE_VIRT + 0xA000)
#define IXP425_USB_BASE_VIRT	(IXP425_PERIPHERAL_BASE_VIRT + 0xB000)


/*
 * UART Register Definitions , Offsets only as there are 2 UARTS.
 *   IXP425_UART1_BASE , IXP425_UART2_BASE.
 */

#undef  UART_NO_RX_INTERRUPT

#define IXP425_UART_XTAL        14745600

/*
 * Constants to make it easy to access  Interrupt Controller registers
 */
#define IXP425_ICPR_OFFSET	0x00 /* Interrupt Status */
#define IXP425_ICMR_OFFSET	0x04 /* Interrupt Enable */
#define IXP425_ICLR_OFFSET	0x08 /* Interrupt IRQ/FIQ Select */
#define IXP425_ICIP_OFFSET      0x0C /* IRQ Status */
#define IXP425_ICFP_OFFSET	0x10 /* FIQ Status */
#define IXP425_ICHR_OFFSET	0x14 /* Interrupt Priority */
#define IXP425_ICIH_OFFSET	0x18 /* IRQ Highest Pri Int */
#define IXP425_ICFH_OFFSET	0x1C /* FIQ Highest Pri Int */

/*
 * Interrupt Controller Register Definitions.
 */
#ifndef __ASSEMBLY__
#define IXP425_INTC_REG(x) ((volatile u32 *)(IXP425_INTC_BASE_VIRT+(x)))
#else
#define IXP425_INTC_REG(x) (IXP425_INTC_BASE_PHYS+(x))
#endif

#define IXP425_ICPR     IXP425_INTC_REG(IXP425_ICPR_OFFSET)
#define IXP425_ICMR     IXP425_INTC_REG(IXP425_ICMR_OFFSET)
#define IXP425_ICLR     IXP425_INTC_REG(IXP425_ICLR_OFFSET)
#define IXP425_ICIP     IXP425_INTC_REG(IXP425_ICIP_OFFSET)
#define IXP425_ICFP     IXP425_INTC_REG(IXP425_ICFP_OFFSET)
#define IXP425_ICHR     IXP425_INTC_REG(IXP425_ICHR_OFFSET)
#define IXP425_ICIH     IXP425_INTC_REG(IXP425_ICIH_OFFSET)
#define IXP425_ICFH     IXP425_INTC_REG(IXP425_ICFH_OFFSET)

/*
 * Constants to make it easy to access GPIO registers
 */
#define IXP425_GPIO_GPOUTR_OFFSET       0x00
#define IXP425_GPIO_GPOER_OFFSET        0x04
#define IXP425_GPIO_GPINR_OFFSET        0x08
#define IXP425_GPIO_GPISR_OFFSET        0x0C
#define IXP425_GPIO_GPIT1R_OFFSET	0x10
#define IXP425_GPIO_GPIT2R_OFFSET	0x14
#define IXP425_GPIO_GPCLKR_OFFSET	0x18
#define IXP425_GPIO_GPDBSELR_OFFSET	0x1C

/*
 * GPIO Register Definitions.
 * [Only perform 32bit reads/writes]
 */
#define IXP425_GPIO_REG(x) ((volatile u32 *)(IXP425_GPIO_BASE_VIRT+(x)))

#define IXP425_GPIO_GPOUTR	IXP425_GPIO_REG(IXP425_GPIO_GPOUTR_OFFSET)
#define IXP425_GPIO_GPOER       IXP425_GPIO_REG(IXP425_GPIO_GPOER_OFFSET)
#define IXP425_GPIO_GPINR       IXP425_GPIO_REG(IXP425_GPIO_GPINR_OFFSET)
#define IXP425_GPIO_GPISR       IXP425_GPIO_REG(IXP425_GPIO_GPISR_OFFSET)
#define IXP425_GPIO_GPIT1R      IXP425_GPIO_REG(IXP425_GPIO_GPIT1R_OFFSET)
#define IXP425_GPIO_GPIT2R      IXP425_GPIO_REG(IXP425_GPIO_GPIT2R_OFFSET)
#define IXP425_GPIO_GPCLKR      IXP425_GPIO_REG(IXP425_GPIO_GPCLKR_OFFSET)
#define IXP425_GPIO_GPDBSELR    IXP425_GPIO_REG(IXP425_GPIO_GPDBSELR_OFFSET)

/*
 * Constants to make it easy to access Timer Control/Status registers
 */
#define IXP425_OSTS_OFFSET	0x00  /* Continious TimeStamp */
#define IXP425_OST1_OFFSET	0x04  /* Timer 1 Timestamp */
#define IXP425_OSRT1_OFFSET	0x08  /* Timer 1 Reload */
#define IXP425_OST2_OFFSET	0x0C  /* Timer 2 Timestamp */
#define IXP425_OSRT2_OFFSET	0x10  /* Timer 2 Reload */
#define IXP425_OSWT_OFFSET	0x14  /* Watchdog Timer */
#define IXP425_OSWE_OFFSET	0x18  /* Watchdog Enable */
#define IXP425_OSWK_OFFSET	0x1C  /* Watchdog Key */
#define IXP425_OSST_OFFSET	0x20  /* Timer Status */

/*
 * Operating System Timer Register Definitions.
 */

#ifndef __ASSEMBLY__
#define IXP425_TIMER_REG(x) ((volatile u32 *)(IXP425_TIMER_BASE_PHYS+(x)))
#else
#define IXP425_TIMER_REG(x) (IXP425_TIMER_BASE_PHYS+(x))
#endif

#define IXP425_OSTS	IXP425_TIMER_REG(IXP425_OSTS_OFFSET)
#define IXP425_OST1	IXP425_TIMER_REG(IXP425_OST1_OFFSET)
#define IXP425_OSRT1	IXP425_TIMER_REG(IXP425_OSRT1_OFFSET)
#define IXP425_OST2	IXP425_TIMER_REG(IXP425_OST2_OFFSET)
#define IXP425_OSRT2	IXP425_TIMER_REG(IXP425_OSRT2_OFFSET)
#define IXP425_OSWT	IXP425_TIMER_REG(IXP425_OSWT_OFFSET)
#define IXP425_OSWE	IXP425_TIMER_REG(IXP425_OSWE_OFFSET)
#define IXP425_OSWK	IXP425_TIMER_REG(IXP425_OSWK_OFFSET)
#define IXP425_OSST	IXP425_TIMER_REG(IXP425_OSST_OFFSET)

/*
 * Timer register values and bit definitions
 */
#define IXP425_OST_ENABLE              BIT(0)
#define IXP425_OST_ONE_SHOT            BIT(1)
/* Low order bits of reload value ignored */
#define IXP425_OST_RELOAD_MASK         (0x3)
#define IXP425_OST_DISABLED            (0x0)
#define IXP425_OSST_TIMER_1_PEND       BIT(0)
#define IXP425_OSST_TIMER_2_PEND       BIT(1)
#define IXP425_OSST_TIMER_TS_PEND      BIT(2)
#define IXP425_OSST_TIMER_WDOG_PEND    BIT(3)
#define IXP425_OSST_TIMER_WARM_RESET   BIT(4)

/*
 * Constants to make it easy to access PCI Control/Status registers
 */
#define PCI_NP_AD_OFFSET            0x00
#define PCI_NP_CBE_OFFSET           0x04
#define PCI_NP_WDATA_OFFSET         0x08
#define PCI_NP_RDATA_OFFSET         0x0c
#define PCI_CRP_AD_CBE_OFFSET       0x10
#define PCI_CRP_WDATA_OFFSET        0x14
#define PCI_CRP_RDATA_OFFSET        0x18
#define PCI_CSR_OFFSET              0x1c
#define PCI_ISR_OFFSET              0x20
#define PCI_INTEN_OFFSET            0x24
#define PCI_DMACTRL_OFFSET          0x28
#define PCI_AHBMEMBASE_OFFSET       0x2c
#define PCI_AHBIOBASE_OFFSET        0x30
#define PCI_PCIMEMBASE_OFFSET       0x34
#define PCI_AHBDOORBELL_OFFSET      0x38
#define PCI_PCIDOORBELL_OFFSET      0x3C
#define PCI_ATPDMA0_AHBADDR_OFFSET  0x40
#define PCI_ATPDMA0_PCIADDR_OFFSET  0x44
#define PCI_ATPDMA0_LENADDR_OFFSET  0x48
#define PCI_ATPDMA1_AHBADDR_OFFSET  0x4C
#define PCI_ATPDMA1_PCIADDR_OFFSET  0x50
#define PCI_ATPDMA1_LENADDR_OFFSET	0x54

/*
 * PCI Control/Status Registers
 */
#define IXP425_PCI_CSR(x) ((volatile u32 *)(IXP425_PCI_CFG_BASE_VIRT+(x)))

#define PCI_NP_AD               IXP425_PCI_CSR(PCI_NP_AD_OFFSET)
#define PCI_NP_CBE              IXP425_PCI_CSR(PCI_NP_CBE_OFFSET)
#define PCI_NP_WDATA            IXP425_PCI_CSR(PCI_NP_WDATA_OFFSET)
#define PCI_NP_RDATA            IXP425_PCI_CSR(PCI_NP_RDATA_OFFSET)
#define PCI_CRP_AD_CBE          IXP425_PCI_CSR(PCI_CRP_AD_CBE_OFFSET)
#define PCI_CRP_WDATA           IXP425_PCI_CSR(PCI_CRP_WDATA_OFFSET)
#define PCI_CRP_RDATA           IXP425_PCI_CSR(PCI_CRP_RDATA_OFFSET)
#define PCI_CSR                 IXP425_PCI_CSR(PCI_CSR_OFFSET)
#define PCI_ISR                 IXP425_PCI_CSR(PCI_ISR_OFFSET)
#define PCI_INTEN               IXP425_PCI_CSR(PCI_INTEN_OFFSET)
#define PCI_DMACTRL             IXP425_PCI_CSR(PCI_DMACTRL_OFFSET)
#define PCI_AHBMEMBASE          IXP425_PCI_CSR(PCI_AHBMEMBASE_OFFSET)
#define PCI_AHBIOBASE           IXP425_PCI_CSR(PCI_AHBIOBASE_OFFSET)
#define PCI_PCIMEMBASE          IXP425_PCI_CSR(PCI_PCIMEMBASE_OFFSET)
#define PCI_AHBDOORBELL         IXP425_PCI_CSR(PCI_AHBDOORBELL_OFFSET)
#define PCI_PCIDOORBELL         IXP425_PCI_CSR(PCI_PCIDOORBELL_OFFSET)
#define PCI_ATPDMA0_AHBADDR     IXP425_PCI_CSR(PCI_ATPDMA0_AHBADDR_OFFSET)
#define PCI_ATPDMA0_PCIADDR     IXP425_PCI_CSR(PCI_ATPDMA0_PCIADDR_OFFSET)
#define PCI_ATPDMA0_LENADDR     IXP425_PCI_CSR(PCI_ATPDMA0_LENADDR_OFFSET)
#define PCI_ATPDMA1_AHBADDR     IXP425_PCI_CSR(PCI_ATPDMA1_AHBADDR_OFFSET)
#define PCI_ATPDMA1_PCIADDR     IXP425_PCI_CSR(PCI_ATPDMA1_PCIADDR_OFFSET)
#define PCI_ATPDMA1_LENADDR     IXP425_PCI_CSR(PCI_ATPDMA1_LENADDR_OFFSET)

/*
 * PCI register values and bit definitions
 */

/* CSR bit definitions */
#define PCI_CSR_HOST    	BIT(0)
#define PCI_CSR_ARBEN   	BIT(1)
#define PCI_CSR_ADS     	BIT(2)
#define PCI_CSR_PDS     	BIT(3)
#define PCI_CSR_ABE     	BIT(4)
#define PCI_CSR_DBT     	BIT(5)
#define PCI_CSR_ASE     	BIT(8)
#define PCI_CSR_IC      	BIT(15)

/* ISR (Interrupt status) Register bit definitions */
#define PCI_ISR_PSE     	BIT(0)
#define PCI_ISR_PFE     	BIT(1)
#define PCI_ISR_PPE     	BIT(2)
#define PCI_ISR_AHBE    	BIT(3)
#define PCI_ISR_APDC    	BIT(4)
#define PCI_ISR_PADC    	BIT(5)
#define PCI_ISR_ADB     	BIT(6)
#define PCI_ISR_PDB     	BIT(7)

/* INTEN (Interrupt Enable) Register bit definitions */
#define PCI_INTEN_PSE   	BIT(0)
#define PCI_INTEN_PFE   	BIT(1)
#define PCI_INTEN_PPE   	BIT(2)
#define PCI_INTEN_AHBE  	BIT(3)
#define PCI_INTEN_APDC  	BIT(4)
#define PCI_INTEN_PADC  	BIT(5)
#define PCI_INTEN_ADB   	BIT(6)
#define PCI_INTEN_PDB   	BIT(7)

/*
 * Shift value for byte enable on NP cmd/byte enable register
 */
#define IXP425_PCI_NP_CBE_BESL		4

/*
 * PCI commands supported by NP access unit
 */
#define NP_CMD_IOREAD			0x2
#define NP_CMD_IOWRITE			0x3
#define NP_CMD_CONFIGREAD		0xa
#define NP_CMD_CONFIGWRITE		0xb
#define NP_CMD_MEMREAD			0x6
#define	NP_CMD_MEMWRITE			0x7

#if 0
#ifndef __ASSEMBLY__
extern int ixp425_pci_read(u32 addr, u32 cmd, u32* data);
extern int ixp425_pci_write(u32 addr, u32 cmd, u32 data);
extern void ixp425_pci_init(void *);
#endif
#endif

/*
 * Constants for CRP access into local config space
 */
#define CRP_AD_CBE_BESL         20
#define CRP_AD_CBE_WRITE        BIT(16)

/*
 * Clock Speed Definitions.
 */
#define IXP425_PERIPHERAL_BUS_CLOCK (66) /* 66Mhzi APB BUS   */


#endif