diff options
Diffstat (limited to 'arch/arm/include/asm/arch-ixp')
| -rw-r--r-- | arch/arm/include/asm/arch-ixp/ixp425.h | 543 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-ixp/ixp425pci.h | 312 |
2 files changed, 855 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-ixp/ixp425.h b/arch/arm/include/asm/arch-ixp/ixp425.h new file mode 100644 index 0000000..2114437 --- /dev/null +++ b/arch/arm/include/asm/arch-ixp/ixp425.h @@ -0,0 +1,543 @@ +/* + * include/asm-arm/arch-ixp425/ixp425.h + * + * Register definitions for IXP425 + * + * Copyright (C) 2002 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef _ASM_ARM_IXP425_H_ +#define _ASM_ARM_IXP425_H_ + +#define BIT(x) (1<<(x)) + +/* FIXME: Only this does work for u-boot... find out why... [RS] */ +#define UBOOT_REG_FIX 1 +#ifdef UBOOT_REG_FIX +# undef io_p2v +# undef __REG +# ifndef __ASSEMBLY__ +# define io_p2v(PhAdd) (PhAdd) +# define __REG(x) (*((volatile u32 *)io_p2v(x))) +# define __REG2(x,y) (*(volatile u32 *)((u32)&__REG(x) + (y))) +# else +# define __REG(x) (x) +# endif +#endif /* UBOOT_REG_FIX */ + +/* + * + * IXP425 Memory map: + * + * Phy Phy Size Map Size Virt Description + * ========================================================================= + * + * 0x00000000 0x10000000 SDRAM 1 + * + * 0x10000000 0x10000000 SDRAM 2 + * + * 0x20000000 0x10000000 SDRAM 3 + * + * 0x30000000 0x10000000 SDRAM 4 + * + * The above four are aliases to the same memory location (0x00000000) + * + * 0x48000000 0x4000000 PCI Memory + * + * 0x50000000 0x10000000 Not Mapped EXP BUS + * + * 0x6000000 0x00004000 0x4000 0xFFFEB000 QMgr + * + * 0xC0000000 0x100 0x1000 0xFFFDD000 PCI CFG + * + * 0xC4000000 0x100 0x1000 0xFFFDE000 EXP CFG + * + * 0xC8000000 0xC000 0xC000 0xFFFDF000 PERIPHERAL + * + * 0xCC000000 0x100 0x1000 Not Mapped SDRAM CFG + */ + +/* + * SDRAM + */ +#define IXP425_SDRAM_BASE (0x00000000) +#define IXP425_SDRAM_BASE_ALT (0x10000000) + + +/* + * PCI Configuration space + */ +#define IXP425_PCI_CFG_BASE_PHYS (0xC0000000) +#define IXP425_PCI_CFG_REGION_SIZE (0x00001000) + +/* + * Expansion BUS Configuration registers + */ +#define IXP425_EXP_CFG_BASE_PHYS (0xC4000000) +#define IXP425_EXP_CFG_REGION_SIZE (0x00001000) + +/* + * Peripheral space + */ +#define IXP425_PERIPHERAL_BASE_PHYS (0xC8000000) +#define IXP425_PERIPHERAL_REGION_SIZE (0x0000C000) + +/* + * SDRAM configuration registers + */ +#define IXP425_SDRAM_CFG_BASE_PHYS (0xCC000000) + +/* + * Q Manager space .. not static mapped + */ +#define IXP425_QMGR_BASE_PHYS (0x60000000) +#define IXP425_QMGR_REGION_SIZE (0x00004000) + +/* + * Expansion BUS + * + * Expansion Bus 'lives' at either base1 or base 2 depending on the value of + * Exp Bus config registers: + * + * Setting bit 31 of IXP425_EXP_CFG0 puts SDRAM at zero, + * and The expansion bus to IXP425_EXP_BUS_BASE2 + */ +#define IXP425_EXP_BUS_BASE1_PHYS (0x00000000) +#define IXP425_EXP_BUS_BASE2_PHYS (0x50000000) + +#define IXP425_EXP_BUS_BASE_PHYS IXP425_EXP_BUS_BASE2_PHYS + +#define IXP425_EXP_BUS_REGION_SIZE (0x08000000) +#define IXP425_EXP_BUS_CSX_REGION_SIZE (0x01000000) + +#define IXP425_EXP_BUS_CS0_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x00000000) +#define IXP425_EXP_BUS_CS1_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x01000000) +#define IXP425_EXP_BUS_CS2_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x02000000) +#define IXP425_EXP_BUS_CS3_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x03000000) +#define IXP425_EXP_BUS_CS4_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x04000000) +#define IXP425_EXP_BUS_CS5_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x05000000) +#define IXP425_EXP_BUS_CS6_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x06000000) +#define IXP425_EXP_BUS_CS7_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x07000000) + +#define IXP425_FLASH_WRITABLE (0x2) +#define IXP425_FLASH_DEFAULT (0xbcd23c40) +#define IXP425_FLASH_WRITE (0xbcd23c42) + +#define IXP425_EXP_CS0_OFFSET 0x00 +#define IXP425_EXP_CS1_OFFSET 0x04 +#define IXP425_EXP_CS2_OFFSET 0x08 +#define IXP425_EXP_CS3_OFFSET 0x0C +#define IXP425_EXP_CS4_OFFSET 0x10 +#define IXP425_EXP_CS5_OFFSET 0x14 +#define IXP425_EXP_CS6_OFFSET 0x18 +#define IXP425_EXP_CS7_OFFSET 0x1C +#define IXP425_EXP_CFG0_OFFSET 0x20 +#define IXP425_EXP_CFG1_OFFSET 0x24 +#define IXP425_EXP_CFG2_OFFSET 0x28 +#define IXP425_EXP_CFG3_OFFSET 0x2C + +/* + * Expansion Bus Controller registers. + */ +#ifndef __ASSEMBLY__ +#define IXP425_EXP_REG(x) ((volatile u32 *)(IXP425_EXP_CFG_BASE_PHYS+(x))) +#else +#define IXP425_EXP_REG(x) (IXP425_EXP_CFG_BASE_PHYS+(x)) +#endif + +#define IXP425_EXP_CS0 IXP425_EXP_REG(IXP425_EXP_CS0_OFFSET) +#define IXP425_EXP_CS1 IXP425_EXP_REG(IXP425_EXP_CS1_OFFSET) +#define IXP425_EXP_CS2 IXP425_EXP_REG(IXP425_EXP_CS2_OFFSET) +#define IXP425_EXP_CS3 IXP425_EXP_REG(IXP425_EXP_CS3_OFFSET) +#define IXP425_EXP_CS4 IXP425_EXP_REG(IXP425_EXP_CS4_OFFSET) +#define IXP425_EXP_CS5 IXP425_EXP_REG(IXP425_EXP_CS5_OFFSET) +#define IXP425_EXP_CS6 IXP425_EXP_REG(IXP425_EXP_CS6_OFFSET) +#define IXP425_EXP_CS7 IXP425_EXP_REG(IXP425_EXP_CS7_OFFSET) + +#define IXP425_EXP_CFG0 IXP425_EXP_REG(IXP425_EXP_CFG0_OFFSET) +#define IXP425_EXP_CFG1 IXP425_EXP_REG(IXP425_EXP_CFG1_OFFSET) +#define IXP425_EXP_CFG2 IXP425_EXP_REG(IXP425_EXP_CFG2_OFFSET) +#define IXP425_EXP_CFG3 IXP425_EXP_REG(IXP425_EXP_CFG3_OFFSET) + +/* + * SDRAM Controller registers. + */ +#define IXP425_SDR_CONFIG_OFFSET 0x00 +#define IXP425_SDR_REFRESH_OFFSET 0x04 +#define IXP425_SDR_IR_OFFSET 0x08 + +#define IXP425_SDRAM_REG(x) (IXP425_SDRAM_CFG_BASE_PHYS+(x)) + +#define IXP425_SDR_CONFIG IXP425_SDRAM_REG(IXP425_SDR_CONFIG_OFFSET) +#define IXP425_SDR_REFRESH IXP425_SDRAM_REG(IXP425_SDR_REFRESH_OFFSET) +#define IXP425_SDR_IR IXP425_SDRAM_REG(IXP425_SDR_IR_OFFSET) + +/* + * UART registers + */ +#define IXP425_UART1 0 +#define IXP425_UART2 0x1000 + +#define IXP425_UART_RBR_OFFSET 0x00 +#define IXP425_UART_THR_OFFSET 0x00 +#define IXP425_UART_DLL_OFFSET 0x00 +#define IXP425_UART_IER_OFFSET 0x04 +#define IXP425_UART_DLH_OFFSET 0x04 +#define IXP425_UART_IIR_OFFSET 0x08 +#define IXP425_UART_FCR_OFFSET 0x00 +#define IXP425_UART_LCR_OFFSET 0x0c +#define IXP425_UART_MCR_OFFSET 0x10 +#define IXP425_UART_LSR_OFFSET 0x14 +#define IXP425_UART_MSR_OFFSET 0x18 +#define IXP425_UART_SPR_OFFSET 0x1c +#define IXP425_UART_ISR_OFFSET 0x20 + +#define IXP425_UART_CFG_BASE_PHYS (0xc8000000) + +#define RBR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_RBR_OFFSET) +#define THR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_THR_OFFSET) +#define DLL(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_DLL_OFFSET) +#define IER(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_IER_OFFSET) +#define DLH(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_DLH_OFFSET) +#define IIR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_IIR_OFFSET) +#define FCR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_FCR_OFFSET) +#define LCR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_LCR_OFFSET) +#define MCR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_MCR_OFFSET) +#define LSR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_LSR_OFFSET) +#define MSR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_MSR_OFFSET) +#define SPR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_SPR_OFFSET) +#define ISR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_ISR_OFFSET) + +#define IER_DMAE (1 << 7) /* DMA Requests Enable */ +#define IER_UUE (1 << 6) /* UART Unit Enable */ +#define IER_NRZE (1 << 5) /* NRZ coding Enable */ +#define IER_RTIOE (1 << 4) /* Receiver Time Out Interrupt Enable */ +#define IER_MIE (1 << 3) /* Modem Interrupt Enable */ +#define IER_RLSE (1 << 2) /* Receiver Line Status Interrupt Enable */ +#define IER_TIE (1 << 1) /* Transmit Data request Interrupt Enable */ +#define IER_RAVIE (1 << 0) /* Receiver Data Available Interrupt Enable */ + +#define IIR_FIFOES1 (1 << 7) /* FIFO Mode Enable Status */ +#define IIR_FIFOES0 (1 << 6) /* FIFO Mode Enable Status */ +#define IIR_TOD (1 << 3) /* Time Out Detected */ +#define IIR_IID2 (1 << 2) /* Interrupt Source Encoded */ +#define IIR_IID1 (1 << 1) /* Interrupt Source Encoded */ +#define IIR_IP (1 << 0) /* Interrupt Pending (active low) */ + +#define FCR_ITL2 (1 << 7) /* Interrupt Trigger Level */ +#define FCR_ITL1 (1 << 6) /* Interrupt Trigger Level */ +#define FCR_RESETTF (1 << 2) /* Reset Transmitter FIFO */ +#define FCR_RESETRF (1 << 1) /* Reset Receiver FIFO */ +#define FCR_TRFIFOE (1 << 0) /* Transmit and Receive FIFO Enable */ +#define FCR_ITL_1 (0) +#define FCR_ITL_8 (FCR_ITL1) +#define FCR_ITL_16 (FCR_ITL2) +#define FCR_ITL_32 (FCR_ITL2|FCR_ITL1) + +#define LCR_DLAB (1 << 7) /* Divisor Latch Access Bit */ +#define LCR_SB (1 << 6) /* Set Break */ +#define LCR_STKYP (1 << 5) /* Sticky Parity */ +#define LCR_EPS (1 << 4) /* Even Parity Select */ +#define LCR_PEN (1 << 3) /* Parity Enable */ +#define LCR_STB (1 << 2) /* Stop Bit */ +#define LCR_WLS1 (1 << 1) /* Word Length Select */ +#define LCR_WLS0 (1 << 0) /* Word Length Select */ + +#define LSR_FIFOE (1 << 7) /* FIFO Error Status */ +#define LSR_TEMT (1 << 6) /* Transmitter Empty */ +#define LSR_TDRQ (1 << 5) /* Transmit Data Request */ +#define LSR_BI (1 << 4) /* Break Interrupt */ +#define LSR_FE (1 << 3) /* Framing Error */ +#define LSR_PE (1 << 2) /* Parity Error */ +#define LSR_OE (1 << 1) /* Overrun Error */ +#define LSR_DR (1 << 0) /* Data Ready */ + +#define MCR_LOOP (1 << 4) */ +#define MCR_OUT2 (1 << 3) /* force MSR_DCD in loopback mode */ +#define MCR_OUT1 (1 << 2) /* force MSR_RI in loopback mode */ +#define MCR_RTS (1 << 1) /* Request to Send */ +#define MCR_DTR (1 << 0) /* Data Terminal Ready */ + +#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_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) + +/* + * 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 */ + +#define N_IRQS 32 +#define IXP425_TIMER_2_IRQ 11 + +/* + * Interrupt Controller Register Definitions. + */ +#ifndef __ASSEMBLY__ +#define IXP425_INTC_REG(x) ((volatile u32 *)(IXP425_INTC_BASE_PHYS+(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_PHYS+(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) + +/* + * Macros to make it easy to access the GPIO registers + */ +#define GPIO_OUTPUT_ENABLE(line) *IXP425_GPIO_GPOER &= ~(1 << (line)) +#define GPIO_OUTPUT_DISABLE(line) *IXP425_GPIO_GPOER |= (1 << (line)) +#define GPIO_OUTPUT_SET(line) *IXP425_GPIO_GPOUTR |= (1 << (line)) +#define GPIO_OUTPUT_CLEAR(line) *IXP425_GPIO_GPOUTR &= ~(1 << (line)) +#define GPIO_INT_ACT_LOW_SET(line) *IXP425_GPIO_GPIT1R = \ + (*IXP425_GPIO_GPIT1R & ~(0x7 << (line * 3))) | (0x1 << (line * 3)) + +/* + * 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 + +#if 0 /* test-only: also defined in npe/include/... */ +#define IXP425_OSTS IXP425_TIMER_REG(IXP425_OSTS_OFFSET) +#endif +#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_PHYS+(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 diff --git a/arch/arm/include/asm/arch-ixp/ixp425pci.h b/arch/arm/include/asm/arch-ixp/ixp425pci.h new file mode 100644 index 0000000..9ea3319 --- /dev/null +++ b/arch/arm/include/asm/arch-ixp/ixp425pci.h @@ -0,0 +1,312 @@ +/* + * IXP PCI Init + * (C) Copyright 2004 eslab.whut.edu.cn + * Yue Hu(huyue_whut@yahoo.com.cn), Ligong Xue(lgxue@hotmail.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _IXP425PCI_H_ +#define _IXP425PCI_H_ + +#define TRUE 1 +#define FALSE 0 +#define OK 0 +#define ERROR -1 +#define BOOL int + +#define IXP425_PCI_MAX_BAR_PER_FUNC 6 +#define IXP425_PCI_MAX_BAR (IXP425_PCI_MAX_BAR_PER_FUNC * \ + IXP425_PCI_MAX_FUNC_ON_BUS) + +enum PciBarId +{ + CSR_BAR=0, + IO_BAR, + SD_BAR, + NO_BAR +}; + +/*Base address register descriptor*/ +typedef struct +{ + unsigned int size; + unsigned int address; +} PciBar; + +typedef struct +{ + unsigned int bus; + unsigned int device; + unsigned int func; + unsigned int irq; + BOOL error; + unsigned short vendor_id; + unsigned short device_id; + /*We need an extra entry in this array for dummy placeholder*/ + PciBar bar[IXP425_PCI_MAX_BAR_PER_FUNC + 1]; +} PciDevice; + +/* Mask definitions*/ +#define IXP425_PCI_TOP_WORD_OF_LONG_MASK 0xffff0000 +#define IXP425_PCI_TOP_BYTE_OF_LONG_MASK 0xff000000 +#define IXP425_PCI_BOTTOM_WORD_OF_LONG_MASK 0x0000ffff +#define IXP425_PCI_BOTTOM_TRIBYTES_OF_LONG_MASK 0x00ffffff +#define IXP425_PCI_BOTTOM_NIBBLE_OF_LONG_MASK 0x0000000f +#define IXP425_PCI_MAX_UINT32 0xffffffff + + +#define IXP425_PCI_BAR_QUERY 0xffffffff + +#define IXP425_PCI_BAR_MEM_BASE 0x100000 +#define IXP425_PCI_BAR_IO_BASE 0x000000 + +/*define the maximum number of bus segments - we support a single segment*/ +#define IXP425_PCI_MAX_BUS 1 +/*define the maximum number of cards per bus segment*/ +#define IXP425_PCI_MAX_DEV 4 +/*define the maximum number of functions per device*/ +#define IXP425_PCI_MAX_FUNC 8 +/* define the maximum number of separate functions that we can + potentially have on the bus*/ +#define IXP425_PCI_MAX_FUNC_ON_BUS (1+ IXP425_PCI_MAX_FUNC * \ + IXP425_PCI_MAX_DEV * \ + IXP425_PCI_MAX_BUS) +/*define the maximum number of BARs per function*/ +#define IXP425_PCI_MAX_BAR_PER_FUNC 6 +#define IXP425_PCI_MAX_BAR (IXP425_PCI_MAX_BAR_PER_FUNC * \ + IXP425_PCI_MAX_FUNC_ON_BUS) + +#define PCI_NP_CBE_BESL (4) +#define PCI_NP_AD_FUNCSL (8) + +#define REG_WRITE(b,o,v) (*(volatile unsigned int*)((b+o))=(v)) +#define REG_READ(b,o,v) ((v)=(*(volatile unsigned int*)((b+o)))) + +#define PCI_DELAY 500 +#define USEC_LOOP_COUNT 533 +#define PCI_SETTLE_USEC 200 +#define PCI_MIN_RESET_ASSERT_USEC 2000 + +/*Register addressing definitions for PCI controller configuration + and status registers*/ + +#define PCI_CSR_BASE (0xC0000000) +/* +#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_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 (0x40) +#define PCI_ATPDMA0_PCIADDR (0x44) +#define PCI_ATPDMA0_LENADDR (0x48) +#define PCI_ATPDMA1_AHBADDR (0x4C) +#define PCI_ATPDMA1_PCIADDR (0x50) +#define PCI_ATPDMA1_LENADDR (0x54) +#define PCI_PTADMA0_AHBADDR (0x58) +#define PCI_PTADMA0_PCIADDR (0x5C) +#define PCI_PTADMA0_LENADDR (0x60) +#define PCI_PTADMA1_AHBADDR (0x64) +#define PCI_PTADMA1_PCIADDR (0x68) +#define PCI_PTADMA1_LENADDR (0x6C) +*/ +/*Non prefetch registers bit definitions*/ +/* +#define NP_CMD_INTACK (0x0) +#define NP_CMD_SPECIAL (0x1) +#define NP_CMD_IOREAD (0x2) +#define NP_CMD_IOWRITE (0x3) +#define NP_CMD_MEMREAD (0x6) +#define NP_CMD_MEMWRITE (0x7) +#define NP_CMD_CONFIGREAD (0xa) +#define NP_CMD_CONFIGWRITE (0xb) +*/ + +/*define the default setting of the AHB memory base reg*/ +#define IXP425_PCI_AHBMEMBASE_DEFAULT 0x00010203 +#define IXP425_PCI_AHBIOBASE_DEFAULT 0x0 +#define IXP425_PCI_PCIMEMBASE_DEFAULT 0x0 + +/*define the default settings for the controller's BARs*/ +#ifdef IXP425_PCI_SIMPLE_MAPPING +#define IXP425_PCI_BAR_0_DEFAULT 0x00000000 +#define IXP425_PCI_BAR_1_DEFAULT 0x01000000 +#define IXP425_PCI_BAR_2_DEFAULT 0x02000000 +#define IXP425_PCI_BAR_3_DEFAULT 0x03000000 +#define IXP425_PCI_BAR_4_DEFAULT 0x00000000 +#define IXP425_PCI_BAR_5_DEFAULT 0x00000000 +#else +#define IXP425_PCI_BAR_0_DEFAULT 0x40000000 +#define IXP425_PCI_BAR_1_DEFAULT 0x41000000 +#define IXP425_PCI_BAR_2_DEFAULT 0x42000000 +#define IXP425_PCI_BAR_3_DEFAULT 0x43000000 +#define IXP425_PCI_BAR_4_DEFAULT 0x00000000 +#define IXP425_PCI_BAR_5_DEFAULT 0x00000000 +#endif + +/*Configuration Port register bit definitions*/ +#define PCI_CRP_WRITE BIT(16) + +/*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) + +/*PCI configuration regs.*/ + +#define PCI_CFG_VENDOR_ID 0x00 +#define PCI_CFG_DEVICE_ID 0x02 +#define PCI_CFG_COMMAND 0x04 +#define PCI_CFG_STATUS 0x06 +#define PCI_CFG_REVISION 0x08 +#define PCI_CFG_PROGRAMMING_IF 0x09 +#define PCI_CFG_SUBCLASS 0x0a +#define PCI_CFG_CLASS 0x0b +#define PCI_CFG_CACHE_LINE_SIZE 0x0c +#define PCI_CFG_LATENCY_TIMER 0x0d +#define PCI_CFG_HEADER_TYPE 0x0e +#define PCI_CFG_BIST 0x0f +#define PCI_CFG_BASE_ADDRESS_0 0x10 +#define PCI_CFG_BASE_ADDRESS_1 0x14 +#define PCI_CFG_BASE_ADDRESS_2 0x18 +#define PCI_CFG_BASE_ADDRESS_3 0x1c +#define PCI_CFG_BASE_ADDRESS_4 0x20 +#define PCI_CFG_BASE_ADDRESS_5 0x24 +#define PCI_CFG_CIS 0x28 +#define PCI_CFG_SUB_VENDOR_ID 0x2c +#define PCI_CFG_SUB_SYSTEM_ID 0x2e +#define PCI_CFG_EXPANSION_ROM 0x30 +#define PCI_CFG_RESERVED_0 0x34 +#define PCI_CFG_RESERVED_1 0x38 +#define PCI_CFG_DEV_INT_LINE 0x3c +#define PCI_CFG_DEV_INT_PIN 0x3d +#define PCI_CFG_MIN_GRANT 0x3e +#define PCI_CFG_MAX_LATENCY 0x3f +#define PCI_CFG_SPECIAL_USE 0x41 +#define PCI_CFG_MODE 0x43 + +/*Specify the initial command we send to PCI devices*/ +#define INITIAL_PCI_CMD (PCI_CMD_IO_ENABLE \ + | PCI_CMD_MEM_ENABLE \ + | PCI_CMD_MASTER_ENABLE \ + | PCI_CMD_WI_ENABLE) + +/*define the sub vendor and subsystem to be used */ +#define IXP425_PCI_SUB_VENDOR_SYSTEM 0x00000000 + +#define PCI_IRQ_LINES 4 + +#define PCI_CMD_IO_ENABLE 0x0001 /* IO access enable */ +#define PCI_CMD_MEM_ENABLE 0x0002 /* memory access enable */ +#define PCI_CMD_MASTER_ENABLE 0x0004 /* bus master enable */ +#define PCI_CMD_MON_ENABLE 0x0008 /* monitor special cycles enable */ +#define PCI_CMD_WI_ENABLE 0x0010 /* write and invalidate enable */ +#define PCI_CMD_SNOOP_ENABLE 0x0020 /* palette snoop enable */ +#define PCI_CMD_PERR_ENABLE 0x0040 /* parity error enable */ +#define PCI_CMD_WC_ENABLE 0x0080 /* wait cycle enable */ +#define PCI_CMD_SERR_ENABLE 0x0100 /* system error enable */ +#define PCI_CMD_FBTB_ENABLE 0x0200 /* fast back to back enable */ + + +/*CSR Register 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) + +/*Configuration command bit definitions*/ +#define PCI_CFG_CMD_IOAE BIT(0) +#define PCI_CFG_CMD_MAE BIT(1) +#define PCI_CFG_CMD_BME BIT(2) +#define PCI_CFG_CMD_MWIE BIT(4) +#define PCI_CFG_CMD_SER BIT(8) +#define PCI_CFG_CMD_FBBE BIT(9) +#define PCI_CFG_CMD_MDPE BIT(24) +#define PCI_CFG_CMD_STA BIT(27) +#define PCI_CFG_CMD_RTA BIT(28) +#define PCI_CFG_CMD_RMA BIT(29) +#define PCI_CFG_CMD_SSE BIT(30) +#define PCI_CFG_CMD_DPE BIT(31) + +/*DMACTRL DMA Control and status Register*/ +#define PCI_DMACTRL_APDCEN BIT(0) +#define PCI_DMACTRL_APDC0 BIT(4) +#define PCI_DMACTRL_APDE0 BIT(5) +#define PCI_DMACTRL_APDC1 BIT(6) +#define PCI_DMACTRL_APDE1 BIT(7) +#define PCI_DMACTRL_PADCEN BIT(8) +#define PCI_DMACTRL_PADC0 BIT(12) +#define PCI_DMACTRL_PADE0 BIT(13) +#define PCI_DMACTRL_PADC1 BIT(14) +#define PCI_DMACTRL_PADE1 BIT(15) + +/* GPIO related register */ +#undef IXP425_GPIO_GPOUTR +#undef IXP425_GPIO_GPOER +#undef IXP425_GPIO_GPINR +#undef IXP425_GPIO_GPISR +#undef IXP425_GPIO_GPIT1R +#undef IXP425_GPIO_GPIT2R +#undef IXP425_GPIO_GPCLKR + +#define IXP425_GPIO_GPOUTR 0xC8004000 +#define IXP425_GPIO_GPOER 0xC8004004 +#define IXP425_GPIO_GPINR 0xC8004008 +#define IXP425_GPIO_GPISR 0xC800400C +#define IXP425_GPIO_GPIT1R 0xC8004010 +#define IXP425_GPIO_GPIT2R 0xC8004014 +#define IXP425_GPIO_GPCLKR 0xC8004018 + +#define READ_GPIO_REG(addr,val) \ + (val) = *((volatile int *)(addr)); +#define WRITE_GPIO_REG(addr,val) \ + *((volatile int *)(addr)) = (val); + +#endif |