diff options
| -rw-r--r-- | board/armltd/integratorap/Makefile | 19 | ||||
| -rw-r--r-- | board/armltd/integratorap/integratorap.c | 366 | ||||
| -rw-r--r-- | board/armltd/integratorap/pci.c | 396 |
3 files changed, 407 insertions, 374 deletions
diff --git a/board/armltd/integratorap/Makefile b/board/armltd/integratorap/Makefile index 79f501a..a6193c7 100644 --- a/board/armltd/integratorap/Makefile +++ b/board/armltd/integratorap/Makefile @@ -29,18 +29,21 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(BOARD).a -COBJS := integratorap.o flash.o -SOBJS := lowlevel_init.o +SOBJS-y := lowlevel_init.o -SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) -OBJS := $(addprefix $(obj),$(COBJS)) -SOBJS := $(addprefix $(obj),$(SOBJS)) +COBJS-y := integratorap.o +COBJS-y += flash.o +COBJS-$(CONFIG_PCI) += pci.o -$(LIB): $(obj).depend $(OBJS) $(SOBJS) - $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) +SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +COBJS := $(addprefix $(obj),$(COBJS-y)) +SOBJS := $(addprefix $(obj),$(SOBJS-y)) + +$(LIB): $(obj).depend $(COBJS) $(SOBJS) + $(AR) $(ARFLAGS) $@ $(COBJS) $(SOBJS) clean: - rm -f $(SOBJS) $(OBJS) + rm -f $(SOBJS) $(COBJS) distclean: clean rm -f $(LIB) core *.bak $(obj).depend diff --git a/board/armltd/integratorap/integratorap.c b/board/armltd/integratorap/integratorap.c index 5ececd6..d458fe6 100644 --- a/board/armltd/integratorap/integratorap.c +++ b/board/armltd/integratorap/integratorap.c @@ -34,11 +34,6 @@ */ #include <common.h> - -#ifdef CONFIG_PCI -#include <pci.h> -#endif - #include <netdev.h> DECLARE_GLOBAL_DATA_PTR; @@ -98,367 +93,6 @@ int misc_init_r (void) return (0); } -/* - * Initialize PCI Devices, report devices found. - */ -#ifdef CONFIG_PCI - -#ifndef CONFIG_PCI_PNP - -static struct pci_config_table pci_integrator_config_table[] = { - { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0f, PCI_ANY_ID, - pci_cfgfunc_config_device, { PCI_ENET0_IOADDR, - PCI_ENET0_MEMADDR, - PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }}, - { } -}; -#endif - -/* V3 access routines */ -#define _V3Write16(o,v) (*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned short)(v)) -#define _V3Read16(o) (*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o))) - -#define _V3Write32(o,v) (*(volatile unsigned int *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned int)(v)) -#define _V3Read32(o) (*(volatile unsigned int *)(PCI_V3_BASE + (unsigned int)(o))) - -/* Compute address necessary to access PCI config space for the given */ -/* bus and device. */ -#define PCI_CONFIG_ADDRESS( __bus, __devfn, __offset ) ({ \ - unsigned int __address, __devicebit; \ - unsigned short __mapaddress; \ - unsigned int __dev = PCI_DEV (__devfn); /* FIXME to check!! (slot?) */ \ - \ - if (__bus == 0) { \ - /* local bus segment so need a type 0 config cycle */ \ - /* build the PCI configuration "address" with one-hot in A31-A11 */ \ - __address = PCI_CONFIG_BASE; \ - __address |= ((__devfn & 0x07) << 8); \ - __address |= __offset & 0xFF; \ - __mapaddress = 0x000A; /* 101=>config cycle, 0=>A1=A0=0 */ \ - __devicebit = (1 << (__dev + 11)); \ - \ - if ((__devicebit & 0xFF000000) != 0) { \ - /* high order bits are handled by the MAP register */ \ - __mapaddress |= (__devicebit >> 16); \ - } else { \ - /* low order bits handled directly in the address */ \ - __address |= __devicebit; \ - } \ - } else { /* bus !=0 */ \ - /* not the local bus segment so need a type 1 config cycle */ \ - /* A31-A24 are don't care (so clear to 0) */ \ - __mapaddress = 0x000B; /* 101=>config cycle, 1=>A1&A0 from PCI_CFG */ \ - __address = PCI_CONFIG_BASE; \ - __address |= ((__bus & 0xFF) << 16); /* bits 23..16 = bus number */ \ - __address |= ((__dev & 0x1F) << 11); /* bits 15..11 = device number */ \ - __address |= ((__devfn & 0x07) << 8); /* bits 10..8 = function number */ \ - __address |= __offset & 0xFF; /* bits 7..0 = register number */ \ - } \ - _V3Write16 (V3_LB_MAP1, __mapaddress); \ - __address; \ -}) - -/* _V3OpenConfigWindow - open V3 configuration window */ -#define _V3OpenConfigWindow() { \ - /* Set up base0 to see all 512Mbytes of memory space (not */ \ - /* prefetchable), this frees up base1 for re-use by configuration*/ \ - /* memory */ \ - \ - _V3Write32 (V3_LB_BASE0, ((INTEGRATOR_PCI_BASE & 0xFFF00000) | \ - 0x90 | V3_LB_BASE_M_ENABLE)); \ - /* Set up base1 to point into configuration space, note that MAP1 */ \ - /* register is set up by pciMakeConfigAddress(). */ \ - \ - _V3Write32 (V3_LB_BASE1, ((CPU_PCI_CNFG_ADRS & 0xFFF00000) | \ - 0x40 | V3_LB_BASE_M_ENABLE)); \ -} - -/* _V3CloseConfigWindow - close V3 configuration window */ -#define _V3CloseConfigWindow() { \ - /* Reassign base1 for use by prefetchable PCI memory */ \ - _V3Write32 (V3_LB_BASE1, (((INTEGRATOR_PCI_BASE + 0x10000000) & 0xFFF00000) \ - | 0x84 | V3_LB_BASE_M_ENABLE)); \ - _V3Write16 (V3_LB_MAP1, \ - (((INTEGRATOR_PCI_BASE + 0x10000000) & 0xFFF00000) >> 16) | 0x0006); \ - \ - /* And shrink base0 back to a 256M window (NOTE: MAP0 already correct) */ \ - \ - _V3Write32 (V3_LB_BASE0, ((INTEGRATOR_PCI_BASE & 0xFFF00000) | \ - 0x80 | V3_LB_BASE_M_ENABLE)); \ -} - -static int pci_integrator_read_byte (struct pci_controller *hose, pci_dev_t dev, - int offset, unsigned char *val) -{ - _V3OpenConfigWindow (); - *val = *(volatile unsigned char *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), - PCI_FUNC (dev), - offset); - _V3CloseConfigWindow (); - - return 0; -} - -static int pci_integrator_read__word (struct pci_controller *hose, - pci_dev_t dev, int offset, - unsigned short *val) -{ - _V3OpenConfigWindow (); - *val = *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), - PCI_FUNC (dev), - offset); - _V3CloseConfigWindow (); - - return 0; -} - -static int pci_integrator_read_dword (struct pci_controller *hose, - pci_dev_t dev, int offset, - unsigned int *val) -{ - _V3OpenConfigWindow (); - *val = *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), - PCI_FUNC (dev), - offset); - *val |= (*(volatile unsigned int *) - PCI_CONFIG_ADDRESS (PCI_BUS (dev), PCI_FUNC (dev), - (offset + 2))) << 16; - _V3CloseConfigWindow (); - - return 0; -} - -static int pci_integrator_write_byte (struct pci_controller *hose, - pci_dev_t dev, int offset, - unsigned char val) -{ - _V3OpenConfigWindow (); - *(volatile unsigned char *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), - PCI_FUNC (dev), - offset) = val; - _V3CloseConfigWindow (); - - return 0; -} - -static int pci_integrator_write_word (struct pci_controller *hose, - pci_dev_t dev, int offset, - unsigned short val) -{ - _V3OpenConfigWindow (); - *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), - PCI_FUNC (dev), - offset) = val; - _V3CloseConfigWindow (); - - return 0; -} - -static int pci_integrator_write_dword (struct pci_controller *hose, - pci_dev_t dev, int offset, - unsigned int val) -{ - _V3OpenConfigWindow (); - *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), - PCI_FUNC (dev), - offset) = (val & 0xFFFF); - *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), - PCI_FUNC (dev), - (offset + 2)) = ((val >> 16) & 0xFFFF); - _V3CloseConfigWindow (); - - return 0; -} -/****************************** - * PCI initialisation - ******************************/ - -struct pci_controller integrator_hose = { -#ifndef CONFIG_PCI_PNP - config_table: pci_integrator_config_table, -#endif -}; - -void pci_init_board (void) -{ - volatile int i, j; - struct pci_controller *hose = &integrator_hose; - - /* setting this register will take the V3 out of reset */ - - *(volatile unsigned int *) (INTEGRATOR_SC_PCIENABLE) = 1; - - /* wait a few usecs to settle the device and the PCI bus */ - - for (i = 0; i < 100; i++) - j = i + 1; - - /* Now write the Base I/O Address Word to V3_BASE + 0x6C */ - - *(volatile unsigned short *) (V3_BASE + V3_LB_IO_BASE) = - (unsigned short) (V3_BASE >> 16); - - do { - *(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA) = 0xAA; - *(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA + 4) = - 0x55; - } while (*(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA) != 0xAA - || *(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA + - 4) != 0x55); - - /* Make sure that V3 register access is not locked, if it is, unlock it */ - - if ((*(volatile unsigned short *) (V3_BASE + V3_SYSTEM) & - V3_SYSTEM_M_LOCK) - == V3_SYSTEM_M_LOCK) - *(volatile unsigned short *) (V3_BASE + V3_SYSTEM) = 0xA05F; - - /* Ensure that the slave accesses from PCI are disabled while we */ - /* setup windows */ - - *(volatile unsigned short *) (V3_BASE + V3_PCI_CMD) &= - ~(V3_COMMAND_M_MEM_EN | V3_COMMAND_M_IO_EN); - - /* Clear RST_OUT to 0; keep the PCI bus in reset until we've finished */ - - *(volatile unsigned short *) (V3_BASE + V3_SYSTEM) &= - ~V3_SYSTEM_M_RST_OUT; - - /* Make all accesses from PCI space retry until we're ready for them */ - - *(volatile unsigned short *) (V3_BASE + V3_PCI_CFG) |= - V3_PCI_CFG_M_RETRY_EN; - - /* Set up any V3 PCI Configuration Registers that we absolutely have to */ - /* LB_CFG controls Local Bus protocol. */ - /* Enable LocalBus byte strobes for READ accesses too. */ - /* set bit 7 BE_IMODE and bit 6 BE_OMODE */ - - *(volatile unsigned short *) (V3_BASE + V3_LB_CFG) |= 0x0C0; - - /* PCI_CMD controls overall PCI operation. */ - /* Enable PCI bus master. */ - - *(volatile unsigned short *) (V3_BASE + V3_PCI_CMD) |= 0x04; - - /* PCI_MAP0 controls where the PCI to CPU memory window is on Local Bus */ - - *(volatile unsigned int *) (V3_BASE + V3_PCI_MAP0) = - (INTEGRATOR_BOOT_ROM_BASE) | (V3_PCI_MAP_M_ADR_SIZE_512M | - V3_PCI_MAP_M_REG_EN | - V3_PCI_MAP_M_ENABLE); - - /* PCI_BASE0 is the PCI address of the start of the window */ - - *(volatile unsigned int *) (V3_BASE + V3_PCI_BASE0) = - INTEGRATOR_BOOT_ROM_BASE; - - /* PCI_MAP1 is LOCAL address of the start of the window */ - - *(volatile unsigned int *) (V3_BASE + V3_PCI_MAP1) = - (INTEGRATOR_HDR0_SDRAM_BASE) | (V3_PCI_MAP_M_ADR_SIZE_1024M | - V3_PCI_MAP_M_REG_EN | - V3_PCI_MAP_M_ENABLE); - - /* PCI_BASE1 is the PCI address of the start of the window */ - - *(volatile unsigned int *) (V3_BASE + V3_PCI_BASE1) = - INTEGRATOR_HDR0_SDRAM_BASE; - - /* Set up the windows from local bus memory into PCI configuration, */ - /* I/O and Memory. */ - /* PCI I/O, LB_BASE2 and LB_MAP2 are used exclusively for this. */ - - *(volatile unsigned short *) (V3_BASE + V3_LB_BASE2) = - ((CPU_PCI_IO_ADRS >> 24) << 8) | V3_LB_BASE_M_ENABLE; - *(volatile unsigned short *) (V3_BASE + V3_LB_MAP2) = 0; - - /* PCI Configuration, use LB_BASE1/LB_MAP1. */ - - /* PCI Memory use LB_BASE0/LB_MAP0 and LB_BASE1/LB_MAP1 */ - /* Map first 256Mbytes as non-prefetchable via BASE0/MAP0 */ - /* (INTEGRATOR_PCI_BASE == PCI_MEM_BASE) */ - - *(volatile unsigned int *) (V3_BASE + V3_LB_BASE0) = - INTEGRATOR_PCI_BASE | (0x80 | V3_LB_BASE_M_ENABLE); - - *(volatile unsigned short *) (V3_BASE + V3_LB_MAP0) = - ((INTEGRATOR_PCI_BASE >> 20) << 0x4) | 0x0006; - - /* Map second 256 Mbytes as prefetchable via BASE1/MAP1 */ - - *(volatile unsigned int *) (V3_BASE + V3_LB_BASE1) = - INTEGRATOR_PCI_BASE | (0x84 | V3_LB_BASE_M_ENABLE); - - *(volatile unsigned short *) (V3_BASE + V3_LB_MAP1) = - (((INTEGRATOR_PCI_BASE + 0x10000000) >> 20) << 4) | 0x0006; - - /* Allow accesses to PCI Configuration space */ - /* and set up A1, A0 for type 1 config cycles */ - - *(volatile unsigned short *) (V3_BASE + V3_PCI_CFG) = - ((*(volatile unsigned short *) (V3_BASE + V3_PCI_CFG)) & - ~(V3_PCI_CFG_M_RETRY_EN | V3_PCI_CFG_M_AD_LOW1)) | - V3_PCI_CFG_M_AD_LOW0; - - /* now we can allow in PCI MEMORY accesses */ - - *(volatile unsigned short *) (V3_BASE + V3_PCI_CMD) = - (*(volatile unsigned short *) (V3_BASE + V3_PCI_CMD)) | - V3_COMMAND_M_MEM_EN; - - /* Set RST_OUT to take the PCI bus is out of reset, PCI devices can */ - /* initialise and lock the V3 system register so that no one else */ - /* can play with it */ - - *(volatile unsigned short *) (V3_BASE + V3_SYSTEM) = - (*(volatile unsigned short *) (V3_BASE + V3_SYSTEM)) | - V3_SYSTEM_M_RST_OUT; - - *(volatile unsigned short *) (V3_BASE + V3_SYSTEM) = - (*(volatile unsigned short *) (V3_BASE + V3_SYSTEM)) | - V3_SYSTEM_M_LOCK; - - /* - * Register the hose - */ - hose->first_busno = 0; - hose->last_busno = 0xff; - - /* System memory space */ - pci_set_region (hose->regions + 0, - 0x00000000, 0x40000000, 0x01000000, - PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); - - /* PCI Memory - config space */ - pci_set_region (hose->regions + 1, - 0x00000000, 0x62000000, 0x01000000, PCI_REGION_MEM); - - /* PCI V3 regs */ - pci_set_region (hose->regions + 2, - 0x00000000, 0x61000000, 0x00080000, PCI_REGION_MEM); - - /* PCI I/O space */ - pci_set_region (hose->regions + 3, - 0x00000000, 0x60000000, 0x00010000, PCI_REGION_IO); - - pci_set_ops (hose, - pci_integrator_read_byte, - pci_integrator_read__word, - pci_integrator_read_dword, - pci_integrator_write_byte, - pci_integrator_write_word, pci_integrator_write_dword); - - hose->region_count = 4; - - pci_register_hose (hose); - - pciauto_config_init (hose); - pciauto_config_device (hose, 0); - - hose->last_busno = pci_hose_scan (hose); -} -#endif /****************************** Routine: diff --git a/board/armltd/integratorap/pci.c b/board/armltd/integratorap/pci.c new file mode 100644 index 0000000..6ee2a85 --- /dev/null +++ b/board/armltd/integratorap/pci.c @@ -0,0 +1,396 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * (C) Copyright 2002 + * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch> + * + * (C) Copyright 2003 + * Texas Instruments, <www.ti.com> + * Kshitij Gupta <Kshitij@ti.com> + * + * (C) Copyright 2004 + * ARM Ltd. + * Philippe Robin, <philippe.robin@arm.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 + */ + +#include <common.h> +#include <pci.h> + +/* + * Initialize PCI Devices, report devices found. + */ + +#ifndef CONFIG_PCI_PNP +static struct pci_config_table pci_integrator_config_table[] = { + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0f, PCI_ANY_ID, + pci_cfgfunc_config_device, { PCI_ENET0_IOADDR, + PCI_ENET0_MEMADDR, + PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }}, + { } +}; +#endif /* CONFIG_PCI_PNP */ + +/* V3 access routines */ +#define _V3Write16(o,v) (*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned short)(v)) +#define _V3Read16(o) (*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o))) + +#define _V3Write32(o,v) (*(volatile unsigned int *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned int)(v)) +#define _V3Read32(o) (*(volatile unsigned int *)(PCI_V3_BASE + (unsigned int)(o))) + +/* Compute address necessary to access PCI config space for the given */ +/* bus and device. */ +#define PCI_CONFIG_ADDRESS( __bus, __devfn, __offset ) ({ \ + unsigned int __address, __devicebit; \ + unsigned short __mapaddress; \ + unsigned int __dev = PCI_DEV (__devfn); /* FIXME to check!! (slot?) */ \ + \ + if (__bus == 0) { \ + /* local bus segment so need a type 0 config cycle */ \ + /* build the PCI configuration "address" with one-hot in A31-A11 */ \ + __address = PCI_CONFIG_BASE; \ + __address |= ((__devfn & 0x07) << 8); \ + __address |= __offset & 0xFF; \ + __mapaddress = 0x000A; /* 101=>config cycle, 0=>A1=A0=0 */ \ + __devicebit = (1 << (__dev + 11)); \ + \ + if ((__devicebit & 0xFF000000) != 0) { \ + /* high order bits are handled by the MAP register */ \ + __mapaddress |= (__devicebit >> 16); \ + } else { \ + /* low order bits handled directly in the address */ \ + __address |= __devicebit; \ + } \ + } else { /* bus !=0 */ \ + /* not the local bus segment so need a type 1 config cycle */ \ + /* A31-A24 are don't care (so clear to 0) */ \ + __mapaddress = 0x000B; /* 101=>config cycle, 1=>A1&A0 from PCI_CFG */ \ + __address = PCI_CONFIG_BASE; \ + __address |= ((__bus & 0xFF) << 16); /* bits 23..16 = bus number */ \ + __address |= ((__dev & 0x1F) << 11); /* bits 15..11 = device number */ \ + __address |= ((__devfn & 0x07) << 8); /* bits 10..8 = function number */ \ + __address |= __offset & 0xFF; /* bits 7..0 = register number */ \ + } \ + _V3Write16 (V3_LB_MAP1, __mapaddress); \ + __address; \ +}) + +/* _V3OpenConfigWindow - open V3 configuration window */ +#define _V3OpenConfigWindow() { \ + /* Set up base0 to see all 512Mbytes of memory space (not */ \ + /* prefetchable), this frees up base1 for re-use by configuration*/ \ + /* memory */ \ + \ + _V3Write32 (V3_LB_BASE0, ((INTEGRATOR_PCI_BASE & 0xFFF00000) | \ + 0x90 | V3_LB_BASE_M_ENABLE)); \ + /* Set up base1 to point into configuration space, note that MAP1 */ \ + /* register is set up by pciMakeConfigAddress(). */ \ + \ + _V3Write32 (V3_LB_BASE1, ((CPU_PCI_CNFG_ADRS & 0xFFF00000) | \ + 0x40 | V3_LB_BASE_M_ENABLE)); \ +} + +/* _V3CloseConfigWindow - close V3 configuration window */ +#define _V3CloseConfigWindow() { \ + /* Reassign base1 for use by prefetchable PCI memory */ \ + _V3Write32 (V3_LB_BASE1, (((INTEGRATOR_PCI_BASE + 0x10000000) & 0xFFF00000) \ + | 0x84 | V3_LB_BASE_M_ENABLE)); \ + _V3Write16 (V3_LB_MAP1, \ + (((INTEGRATOR_PCI_BASE + 0x10000000) & 0xFFF00000) >> 16) | 0x0006); \ + \ + /* And shrink base0 back to a 256M window (NOTE: MAP0 already correct) */ \ + \ + _V3Write32 (V3_LB_BASE0, ((INTEGRATOR_PCI_BASE & 0xFFF00000) | \ + 0x80 | V3_LB_BASE_M_ENABLE)); \ +} + +static int pci_integrator_read_byte (struct pci_controller *hose, pci_dev_t dev, + int offset, unsigned char *val) +{ + _V3OpenConfigWindow (); + *val = *(volatile unsigned char *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), + PCI_FUNC (dev), + offset); + _V3CloseConfigWindow (); + + return 0; +} + +static int pci_integrator_read__word (struct pci_controller *hose, + pci_dev_t dev, int offset, + unsigned short *val) +{ + _V3OpenConfigWindow (); + *val = *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), + PCI_FUNC (dev), + offset); + _V3CloseConfigWindow (); + + return 0; +} + +static int pci_integrator_read_dword (struct pci_controller *hose, + pci_dev_t dev, int offset, + unsigned int *val) +{ + _V3OpenConfigWindow (); + *val = *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), + PCI_FUNC (dev), + offset); + *val |= (*(volatile unsigned int *) + PCI_CONFIG_ADDRESS (PCI_BUS (dev), PCI_FUNC (dev), + (offset + 2))) << 16; + _V3CloseConfigWindow (); + + return 0; +} + +static int pci_integrator_write_byte (struct pci_controller *hose, + pci_dev_t dev, int offset, + unsigned char val) +{ + _V3OpenConfigWindow (); + *(volatile unsigned char *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), + PCI_FUNC (dev), + offset) = val; + _V3CloseConfigWindow (); + + return 0; +} + +static int pci_integrator_write_word (struct pci_controller *hose, + pci_dev_t dev, int offset, + unsigned short val) +{ + _V3OpenConfigWindow (); + *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), + PCI_FUNC (dev), + offset) = val; + _V3CloseConfigWindow (); + + return 0; +} + +static int pci_integrator_write_dword (struct pci_controller *hose, + pci_dev_t dev, int offset, + unsigned int val) +{ + _V3OpenConfigWindow (); + *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), + PCI_FUNC (dev), + offset) = (val & 0xFFFF); + *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev), + PCI_FUNC (dev), + (offset + 2)) = ((val >> 16) & 0xFFFF); + _V3CloseConfigWindow (); + + return 0; +} +/****************************** + * PCI initialisation + ******************************/ + +struct pci_controller integrator_hose = { +#ifndef CONFIG_PCI_PNP + config_table: pci_integrator_config_table, +#endif +}; + +void pci_init_board (void) +{ + volatile int i, j; + struct pci_controller *hose = &integrator_hose; + + /* setting this register will take the V3 out of reset */ + + *(volatile unsigned int *) (INTEGRATOR_SC_PCIENABLE) = 1; + + /* wait a few usecs to settle the device and the PCI bus */ + + for (i = 0; i < 100; i++) + j = i + 1; + + /* Now write the Base I/O Address Word to V3_BASE + 0x6C */ + + *(volatile unsigned short *) (V3_BASE + V3_LB_IO_BASE) = + (unsigned short) (V3_BASE >> 16); + + do { + *(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA) = 0xAA; + *(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA + 4) = + 0x55; + } while (*(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA) != 0xAA + || *(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA + + 4) != 0x55); + + /* Make sure that V3 register access is not locked, if it is, unlock it */ + + if ((*(volatile unsigned short *) (V3_BASE + V3_SYSTEM) & + V3_SYSTEM_M_LOCK) + == V3_SYSTEM_M_LOCK) + *(volatile unsigned short *) (V3_BASE + V3_SYSTEM) = 0xA05F; + + /* Ensure that the slave accesses from PCI are disabled while we */ + /* setup windows */ + + *(volatile unsigned short *) (V3_BASE + V3_PCI_CMD) &= + ~(V3_COMMAND_M_MEM_EN | V3_COMMAND_M_IO_EN); + + /* Clear RST_OUT to 0; keep the PCI bus in reset until we've finished */ + + *(volatile unsigned short *) (V3_BASE + V3_SYSTEM) &= + ~V3_SYSTEM_M_RST_OUT; + + /* Make all accesses from PCI space retry until we're ready for them */ + + *(volatile unsigned short *) (V3_BASE + V3_PCI_CFG) |= + V3_PCI_CFG_M_RETRY_EN; + + /* Set up any V3 PCI Configuration Registers that we absolutely have to */ + /* LB_CFG controls Local Bus protocol. */ + /* Enable LocalBus byte strobes for READ accesses too. */ + /* set bit 7 BE_IMODE and bit 6 BE_OMODE */ + + *(volatile unsigned short *) (V3_BASE + V3_LB_CFG) |= 0x0C0; + + /* PCI_CMD controls overall PCI operation. */ + /* Enable PCI bus master. */ + + *(volatile unsigned short *) (V3_BASE + V3_PCI_CMD) |= 0x04; + + /* PCI_MAP0 controls where the PCI to CPU memory window is on Local Bus */ + + *(volatile unsigned int *) (V3_BASE + V3_PCI_MAP0) = + (INTEGRATOR_BOOT_ROM_BASE) | (V3_PCI_MAP_M_ADR_SIZE_512M | + V3_PCI_MAP_M_REG_EN | + V3_PCI_MAP_M_ENABLE); + + /* PCI_BASE0 is the PCI address of the start of the window */ + + *(volatile unsigned int *) (V3_BASE + V3_PCI_BASE0) = + INTEGRATOR_BOOT_ROM_BASE; + + /* PCI_MAP1 is LOCAL address of the start of the window */ + + *(volatile unsigned int *) (V3_BASE + V3_PCI_MAP1) = + (INTEGRATOR_HDR0_SDRAM_BASE) | (V3_PCI_MAP_M_ADR_SIZE_1024M | + V3_PCI_MAP_M_REG_EN | + V3_PCI_MAP_M_ENABLE); + + /* PCI_BASE1 is the PCI address of the start of the window */ + + *(volatile unsigned int *) (V3_BASE + V3_PCI_BASE1) = + INTEGRATOR_HDR0_SDRAM_BASE; + + /* Set up the windows from local bus memory into PCI configuration, */ + /* I/O and Memory. */ + /* PCI I/O, LB_BASE2 and LB_MAP2 are used exclusively for this. */ + + *(volatile unsigned short *) (V3_BASE + V3_LB_BASE2) = + ((CPU_PCI_IO_ADRS >> 24) << 8) | V3_LB_BASE_M_ENABLE; + *(volatile unsigned short *) (V3_BASE + V3_LB_MAP2) = 0; + + /* PCI Configuration, use LB_BASE1/LB_MAP1. */ + + /* PCI Memory use LB_BASE0/LB_MAP0 and LB_BASE1/LB_MAP1 */ + /* Map first 256Mbytes as non-prefetchable via BASE0/MAP0 */ + /* (INTEGRATOR_PCI_BASE == PCI_MEM_BASE) */ + + *(volatile unsigned int *) (V3_BASE + V3_LB_BASE0) = + INTEGRATOR_PCI_BASE | (0x80 | V3_LB_BASE_M_ENABLE); + + *(volatile unsigned short *) (V3_BASE + V3_LB_MAP0) = + ((INTEGRATOR_PCI_BASE >> 20) << 0x4) | 0x0006; + + /* Map second 256 Mbytes as prefetchable via BASE1/MAP1 */ + + *(volatile unsigned int *) (V3_BASE + V3_LB_BASE1) = + INTEGRATOR_PCI_BASE | (0x84 | V3_LB_BASE_M_ENABLE); + + *(volatile unsigned short *) (V3_BASE + V3_LB_MAP1) = + (((INTEGRATOR_PCI_BASE + 0x10000000) >> 20) << 4) | 0x0006; + + /* Allow accesses to PCI Configuration space */ + /* and set up A1, A0 for type 1 config cycles */ + + *(volatile unsigned short *) (V3_BASE + V3_PCI_CFG) = + ((*(volatile unsigned short *) (V3_BASE + V3_PCI_CFG)) & + ~(V3_PCI_CFG_M_RETRY_EN | V3_PCI_CFG_M_AD_LOW1)) | + V3_PCI_CFG_M_AD_LOW0; + + /* now we can allow in PCI MEMORY accesses */ + + *(volatile unsigned short *) (V3_BASE + V3_PCI_CMD) = + (*(volatile unsigned short *) (V3_BASE + V3_PCI_CMD)) | + V3_COMMAND_M_MEM_EN; + + /* Set RST_OUT to take the PCI bus is out of reset, PCI devices can */ + /* initialise and lock the V3 system register so that no one else */ + /* can play with it */ + + *(volatile unsigned short *) (V3_BASE + V3_SYSTEM) = + (*(volatile unsigned short *) (V3_BASE + V3_SYSTEM)) | + V3_SYSTEM_M_RST_OUT; + + *(volatile unsigned short *) (V3_BASE + V3_SYSTEM) = + (*(volatile unsigned short *) (V3_BASE + V3_SYSTEM)) | + V3_SYSTEM_M_LOCK; + + /* + * Register the hose + */ + hose->first_busno = 0; + hose->last_busno = 0xff; + + /* System memory space */ + pci_set_region (hose->regions + 0, + 0x00000000, 0x40000000, 0x01000000, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + /* PCI Memory - config space */ + pci_set_region (hose->regions + 1, + 0x00000000, 0x62000000, 0x01000000, PCI_REGION_MEM); + + /* PCI V3 regs */ + pci_set_region (hose->regions + 2, + 0x00000000, 0x61000000, 0x00080000, PCI_REGION_MEM); + + /* PCI I/O space */ + pci_set_region (hose->regions + 3, + 0x00000000, 0x60000000, 0x00010000, PCI_REGION_IO); + + pci_set_ops (hose, + pci_integrator_read_byte, + pci_integrator_read__word, + pci_integrator_read_dword, + pci_integrator_write_byte, + pci_integrator_write_word, pci_integrator_write_dword); + + hose->region_count = 4; + + pci_register_hose (hose); + + pciauto_config_init (hose); + pciauto_config_device (hose, 0); + + hose->last_busno = pci_hose_scan (hose); +} |