diff options
Diffstat (limited to 'include/asm-arm')
| -rw-r--r-- | include/asm-arm/arch-ixp/ixp425pci.h | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ixp/ixp425pci.h b/include/asm-arm/arch-ixp/ixp425pci.h new file mode 100644 index 0000000..9ea3319 --- /dev/null +++ b/include/asm-arm/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 |