ixp: move pci drivers to drivers/pci

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

2 files changed, 0 insertions, 572 deletions

diff --git a/cpu/ixp/Makefile b/cpu/ixp/Makefile
index afa972a..6deecd4 100644
--- a/cpu/ixp/Makefile
+++ b/cpu/ixp/Makefile
@@ -28,7 +28,6 @@ LIB	= $(obj)lib$(CPU).a
 START	= start.o
 COBJS-y	+= cpu.o
 COBJS-y	+= interrupts.o
-COBJS-$(CONFIG_PCI) += pci.o
 COBJS-y	+= serial.o
 ifndef CONFIG_USE_IRQ
 COBJS-y	+= timer.o
diff --git a/cpu/ixp/pci.c b/cpu/ixp/pci.c
deleted file mode 100644
index aae3d3d..0000000
--- a/cpu/ixp/pci.c
+++ /dev/null
@@ -1,571 +0,0 @@
-/*
- * 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
- */
-
-
-#include <common.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <pci.h>
-#include <asm/arch/ixp425.h>
-#include <asm/arch/ixp425pci.h>
-
-static void non_prefetch_read (unsigned int addr, unsigned int cmd,
-			       unsigned int *data);
-static void non_prefetch_write (unsigned int addr, unsigned int cmd,
-				unsigned int data);
-static void configure_pins (void);
-static void sys_pci_gpio_clock_config (void);
-static void pci_bus_scan (void);
-static int pci_device_exists (unsigned int deviceNo);
-static void sys_pci_bar_info_get (unsigned int devnum, unsigned int bus,
-				  unsigned int dev, unsigned int func);
-static void sys_pci_device_bars_write (void);
-static void calc_bars (PciBar * Bars[], unsigned int nBars,
-		       unsigned int startAddr);
-
-#define PCI_MEMORY_BUS		0x00000000
-#define PCI_MEMORY_PHY		0x48000000
-#define PCI_MEMORY_SIZE		0x04000000
-
-#define PCI_MEM_BUS		0x40000000
-#define PCI_MEM_PHY		0x00000000
-#define PCI_MEM_SIZE		0x04000000
-
-#define	PCI_IO_BUS		0x40000000
-#define PCI_IO_PHY		0x50000000
-#define PCI_IO_SIZE		0x10000000
-
-struct pci_controller hose;
-
-unsigned int nDevices;
-unsigned int nMBars;
-unsigned int nIOBars;
-PciBar *memBars[IXP425_PCI_MAX_BAR];
-PciBar *ioBars[IXP425_PCI_MAX_BAR];
-PciDevice devices[IXP425_PCI_MAX_FUNC_ON_BUS];
-
-int pci_read_config_dword (pci_dev_t dev, int where, unsigned int *val)
-{
-	unsigned int retval;
-	unsigned int addr;
-
-	/*address bits 31:28 specify the device 10:8 specify the function */
-	/*Set the address to be read */
-	addr = BIT ((31 - dev)) | (where & ~3);
-	non_prefetch_read (addr, NP_CMD_CONFIGREAD, &retval);
-
-	*val = retval;
-
-	return (OK);
-}
-
-int pci_read_config_word (pci_dev_t dev, int where, unsigned short *val)
-{
-	unsigned int n;
-	unsigned int retval;
-	unsigned int addr;
-	unsigned int byteEnables;
-
-	n = where % 4;
-	/*byte enables are 4 bits active low, the position of each
-	   bit maps to the byte that it enables */
-	byteEnables =
-		(~(BIT (n) | BIT ((n + 1)))) &
-		IXP425_PCI_BOTTOM_NIBBLE_OF_LONG_MASK;
-	byteEnables = byteEnables << PCI_NP_CBE_BESL;
-	/*address bits 31:28 specify the device 10:8 specify the function */
-	/*Set the address to be read */
-	addr = BIT ((31 - dev)) | (where & ~3);
-	non_prefetch_read (addr, byteEnables | NP_CMD_CONFIGREAD, &retval);
-
-	/*Pick out the word we are interested in */
-	*val = (retval >> (8 * n));
-
-	return (OK);
-}
-
-int pci_read_config_byte (pci_dev_t dev, int where, unsigned char *val)
-{
-	unsigned int retval;
-	unsigned int n;
-	unsigned int byteEnables;
-	unsigned int addr;
-
-	n = where % 4;
-	/*byte enables are 4 bits, active low, the position of each
-	   bit maps to the byte that it enables */
-	byteEnables = (~BIT (n)) & IXP425_PCI_BOTTOM_NIBBLE_OF_LONG_MASK;
-	byteEnables = byteEnables << PCI_NP_CBE_BESL;
-
-	/*address bits 31:28 specify the device, 10:8 specify the function */
-	/*Set the address to be read */
-	addr = BIT ((31 - dev)) | (where & ~3);
-	non_prefetch_read (addr, byteEnables | NP_CMD_CONFIGREAD, &retval);
-	/*Pick out the byte we are interested in */
-	*val = (retval >> (8 * n));
-
-	return (OK);
-}
-
-int pci_write_config_byte (pci_dev_t dev, int where, unsigned char val)
-{
-	unsigned int addr;
-	unsigned int byteEnables;
-	unsigned int n;
-	unsigned int ldata;
-
-	n = where % 4;
-	/*byte enables are 4 bits active low, the position of each
-	   bit maps to the byte that it enables */
-	byteEnables = (~BIT (n)) & IXP425_PCI_BOTTOM_NIBBLE_OF_LONG_MASK;
-	byteEnables = byteEnables << PCI_NP_CBE_BESL;
-	ldata = val << (8 * n);
-	/*address bits 31:28 specify the device 10:8 specify the function */
-	/*Set the address to be written */
-	addr = BIT ((31 - dev)) | (where & ~3);
-	non_prefetch_write (addr, byteEnables | NP_CMD_CONFIGWRITE, ldata);
-
-	return (OK);
-}
-
-int pci_write_config_word (pci_dev_t dev, int where, unsigned short val)
-{
-	unsigned int addr;
-	unsigned int byteEnables;
-	unsigned int n;
-	unsigned int ldata;
-
-	n = where % 4;
-	/*byte enables are 4 bits active low, the position of each
-	   bit maps to the byte that it enables */
-	byteEnables =
-		(~(BIT (n) | BIT ((n + 1)))) &
-		IXP425_PCI_BOTTOM_NIBBLE_OF_LONG_MASK;
-	byteEnables = byteEnables << PCI_NP_CBE_BESL;
-	ldata = val << (8 * n);
-	/*address bits 31:28 specify the device 10:8 specify the function */
-	/*Set the address to be written */
-	addr = BIT (31 - dev) | (where & ~3);
-	non_prefetch_write (addr, byteEnables | NP_CMD_CONFIGWRITE, ldata);
-
-	return (OK);
-}
-
-int pci_write_config_dword (pci_dev_t dev, int where, unsigned int val)
-{
-	unsigned int addr;
-
-	/*address bits 31:28 specify the device 10:8 specify the function */
-	/*Set the address to be written */
-	addr = BIT (31 - dev) | (where & ~3);
-	non_prefetch_write (addr, NP_CMD_CONFIGWRITE, val);
-
-	return (OK);
-}
-
-void non_prefetch_read (unsigned int addr,
-			unsigned int cmd, unsigned int *data)
-{
-	REG_WRITE (PCI_CSR_BASE, PCI_NP_AD_OFFSET, addr);
-
-	/*set up and execute the read */
-	REG_WRITE (PCI_CSR_BASE, PCI_NP_CBE_OFFSET, cmd);
-
-	/*The result of the read is now in np_rdata */
-	REG_READ (PCI_CSR_BASE, PCI_NP_RDATA_OFFSET, *data);
-
-	return;
-}
-
-void non_prefetch_write (unsigned int addr,
-			 unsigned int cmd, unsigned int data)
-{
-
-	REG_WRITE (PCI_CSR_BASE, PCI_NP_AD_OFFSET, addr);
-	/*set up the write */
-	REG_WRITE (PCI_CSR_BASE, PCI_NP_CBE_OFFSET, cmd);
-	/*Execute the write by writing to NP_WDATA */
-	REG_WRITE (PCI_CSR_BASE, PCI_NP_WDATA_OFFSET, data);
-
-	return;
-}
-
-/*
- * PCI controller config registers are accessed through these functions
- * i.e. these allow us to set up our own BARs etc.
- */
-void crp_read (unsigned int offset, unsigned int *data)
-{
-	REG_WRITE (PCI_CSR_BASE, PCI_CRP_AD_CBE_OFFSET, offset);
-	REG_READ (PCI_CSR_BASE, PCI_CRP_RDATA_OFFSET, *data);
-}
-
-void crp_write (unsigned int offset, unsigned int data)
-{
-	/*The CRP address register bit 16 indicates that we want to do a write */
-	REG_WRITE (PCI_CSR_BASE, PCI_CRP_AD_CBE_OFFSET,
-		   PCI_CRP_WRITE | offset);
-	REG_WRITE (PCI_CSR_BASE, PCI_CRP_WDATA_OFFSET, data);
-}
-
-/*struct pci_controller *hose*/
-void pci_ixp_init (struct pci_controller *hose)
-{
-	unsigned int regval;
-
-	hose->first_busno = 0;
-	hose->last_busno = 0x00;
-
-	/* System memory space */
-	pci_set_region (hose->regions + 0,
-			PCI_MEMORY_BUS,
-			PCI_MEMORY_PHY, PCI_MEMORY_SIZE, PCI_REGION_MEMORY);
-
-	/* PCI memory space */
-	pci_set_region (hose->regions + 1,
-			PCI_MEM_BUS,
-			PCI_MEM_PHY, PCI_MEM_SIZE, PCI_REGION_MEM);
-	/* PCI I/O space */
-	pci_set_region (hose->regions + 2,
-			PCI_IO_BUS, PCI_IO_PHY, PCI_IO_SIZE, PCI_REGION_IO);
-
-	hose->region_count = 3;
-
-	pci_register_hose (hose);
-
-/*
- ==========================================================
-		Init IXP PCI
- ==========================================================
-*/
-	REG_READ (PCI_CSR_BASE, PCI_CSR_OFFSET, regval);
-	regval |= 1 << 2;
-	REG_WRITE (PCI_CSR_BASE, PCI_CSR_OFFSET, regval);
-
-	configure_pins ();
-
-	READ_GPIO_REG (IXP425_GPIO_GPOUTR, regval);
-	WRITE_GPIO_REG (IXP425_GPIO_GPOUTR, regval & (~(1 << 13)));
-	udelay (533);
-	sys_pci_gpio_clock_config ();
-	REG_WRITE (PCI_CSR_BASE, PCI_INTEN_OFFSET, 0);
-	udelay (100);
-	READ_GPIO_REG (IXP425_GPIO_GPOUTR, regval);
-	WRITE_GPIO_REG (IXP425_GPIO_GPOUTR, regval | (1 << 13));
-	udelay (533);
-	crp_write (PCI_CFG_BASE_ADDRESS_0, IXP425_PCI_BAR_0_DEFAULT);
-	crp_write (PCI_CFG_BASE_ADDRESS_1, IXP425_PCI_BAR_1_DEFAULT);
-	crp_write (PCI_CFG_BASE_ADDRESS_2, IXP425_PCI_BAR_2_DEFAULT);
-	crp_write (PCI_CFG_BASE_ADDRESS_3, IXP425_PCI_BAR_3_DEFAULT);
-	crp_write (PCI_CFG_BASE_ADDRESS_4, IXP425_PCI_BAR_4_DEFAULT);
-	crp_write (PCI_CFG_BASE_ADDRESS_5, IXP425_PCI_BAR_5_DEFAULT);
-	/*Setup PCI-AHB and AHB-PCI address mappings */
-	REG_WRITE (PCI_CSR_BASE, PCI_AHBMEMBASE_OFFSET,
-		   IXP425_PCI_AHBMEMBASE_DEFAULT);
-
-	REG_WRITE (PCI_CSR_BASE, PCI_AHBIOBASE_OFFSET,
-		   IXP425_PCI_AHBIOBASE_DEFAULT);
-
-	REG_WRITE (PCI_CSR_BASE, PCI_PCIMEMBASE_OFFSET,
-		   IXP425_PCI_PCIMEMBASE_DEFAULT);
-
-	crp_write (PCI_CFG_SUB_VENDOR_ID, IXP425_PCI_SUB_VENDOR_SYSTEM);
-
-	REG_READ (PCI_CSR_BASE, PCI_CSR_OFFSET, regval);
-	regval |= PCI_CSR_IC | PCI_CSR_ABE | PCI_CSR_PDS;
-	REG_WRITE (PCI_CSR_BASE, PCI_CSR_OFFSET, regval);
-	crp_write (PCI_CFG_COMMAND, PCI_CFG_CMD_MAE | PCI_CFG_CMD_BME);
-	udelay (1000);
-
-	pci_write_config_word (0, PCI_CFG_COMMAND, INITIAL_PCI_CMD);
-	REG_WRITE (PCI_CSR_BASE, PCI_ISR_OFFSET, PCI_ISR_PSE
-		   | PCI_ISR_PFE | PCI_ISR_PPE | PCI_ISR_AHBE);
-#ifdef CONFIG_PCI_SCAN_SHOW
-	printf ("Device  bus  dev  func  deviceID  vendorID \n");
-#endif
-	pci_bus_scan ();
-}
-
-void configure_pins (void)
-{
-	unsigned int regval;
-
-	/* Disable clock on GPIO PIN 14 */
-	READ_GPIO_REG (IXP425_GPIO_GPCLKR, regval);
-	WRITE_GPIO_REG (IXP425_GPIO_GPCLKR, regval & (~(1 << 8)));
-	READ_GPIO_REG (IXP425_GPIO_GPCLKR, regval);
-
-	READ_GPIO_REG (IXP425_GPIO_GPOER, regval);
-	WRITE_GPIO_REG (IXP425_GPIO_GPOER,
-			(((~(3 << 13)) & regval) | (0xf << 8)));
-	READ_GPIO_REG (IXP425_GPIO_GPOER, regval);
-
-	READ_GPIO_REG (IXP425_GPIO_GPIT2R, regval);
-	WRITE_GPIO_REG (IXP425_GPIO_GPIT2R,
-			(regval &
-			 ((0x1 << 9) | (0x1 << 6) | (0x1 << 3) | 0x1)));
-	READ_GPIO_REG (IXP425_GPIO_GPIT2R, regval);
-
-	READ_GPIO_REG (IXP425_GPIO_GPISR, regval);
-	WRITE_GPIO_REG (IXP425_GPIO_GPISR, (regval | (0xf << 8)));
-	READ_GPIO_REG (IXP425_GPIO_GPISR, regval);
-}
-
-void sys_pci_gpio_clock_config (void)
-{
-	unsigned int regval;
-
-	READ_GPIO_REG (IXP425_GPIO_GPCLKR, regval);
-	regval |= 0x1 << 4;
-	WRITE_GPIO_REG (IXP425_GPIO_GPCLKR, regval);
-	READ_GPIO_REG (IXP425_GPIO_GPCLKR, regval);
-	regval |= 0x1 << 8;
-	WRITE_GPIO_REG (IXP425_GPIO_GPCLKR, regval);
-}
-
-void pci_bus_scan (void)
-{
-	unsigned int bus = 0, dev, func = 0;
-	unsigned short data16;
-	unsigned int data32;
-	unsigned char intPin;
-
-	/* Assign first device to ourselves */
-	devices[0].bus = 0;
-	devices[0].device = 0;
-	devices[0].func = 0;
-
-	crp_read (PCI_CFG_VENDOR_ID, &data32);
-
-	devices[0].vendor_id = data32 & IXP425_PCI_BOTTOM_WORD_OF_LONG_MASK;
-	devices[0].device_id = data32 >> 16;
-	devices[0].error = FALSE;
-	devices[0].bar[NO_BAR].size = 0;	/*dummy - required */
-
-	nDevices = 1;
-
-	nMBars = 0;
-	nIOBars = 0;
-
-	for (dev = 0; dev < IXP425_PCI_MAX_DEV; dev++) {
-
-		/*Check whether a device is present */
-		if (pci_device_exists (dev) != TRUE) {
-
-			/*Clear error bits in ISR, write 1 to clear */
-			REG_WRITE (PCI_CSR_BASE, PCI_ISR_OFFSET, PCI_ISR_PSE
-				   | PCI_ISR_PFE | PCI_ISR_PPE |
-				   PCI_ISR_AHBE);
-			continue;
-		}
-
-		/*A device is present, add an entry to the array */
-		devices[nDevices].bus = bus;
-		devices[nDevices].device = dev;
-		devices[nDevices].func = func;
-
-		pci_read_config_word (dev, PCI_CFG_VENDOR_ID, &data16);
-
-		devices[nDevices].vendor_id = data16;
-
-		pci_read_config_word (dev, PCI_CFG_DEVICE_ID, &data16);
-		devices[nDevices].device_id = data16;
-
-		/*The device is functioning correctly, set error to FALSE */
-		devices[nDevices].error = FALSE;
-
-		/*Figure out what BARs are on this device */
-		sys_pci_bar_info_get (nDevices, bus, dev, func);
-		/*Figure out what INTX# line the card uses */
-		pci_read_config_byte (dev, PCI_CFG_DEV_INT_PIN, &intPin);
-
-		/*assign the appropriate irq line */
-		if (intPin > PCI_IRQ_LINES) {
-			devices[nDevices].error = TRUE;
-		} else if (intPin != 0) {
-			/*This device uses an interrupt line */
-			/*devices[nDevices].irq = ixp425PciIntTranslate[dev][intPin-1]; */
-			devices[nDevices].irq = intPin;
-		}
-#ifdef CONFIG_PCI_SCAN_SHOW
-		printf ("%06d    %03d %03d %04d  %08d      %08x\n", nDevices,
-			devices[nDevices].vendor_id);
-#endif
-		nDevices++;
-
-	}
-
-	calc_bars (memBars, nMBars, IXP425_PCI_BAR_MEM_BASE);
-	sys_pci_device_bars_write ();
-
-	REG_WRITE (PCI_CSR_BASE, PCI_ISR_OFFSET, PCI_ISR_PSE
-		   | PCI_ISR_PFE | PCI_ISR_PPE | PCI_ISR_AHBE);
-}
-
-void sys_pci_bar_info_get (unsigned int devnum,
-			   unsigned int bus,
-			   unsigned int dev, unsigned int func)
-{
-	unsigned int data32;
-	unsigned int tmp;
-	unsigned int size;
-
-	pci_write_config_dword (devnum,
-				PCI_CFG_BASE_ADDRESS_0, IXP425_PCI_BAR_QUERY);
-	pci_read_config_dword (devnum, PCI_CFG_BASE_ADDRESS_0, &data32);
-
-	devices[devnum].bar[0].address = (data32 & 1);
-
-	if (data32 & 1) {
-		/* IO space */
-		tmp = data32 & ~0x3;
-		size = ~(tmp - 1);
-		devices[devnum].bar[0].size = size;
-
-		if (nIOBars < IXP425_PCI_MAX_BAR) {
-			ioBars[nIOBars++] = &devices[devnum].bar[0];
-		}
-	} else {
-		/* Mem space */
-		tmp = data32 & ~IXP425_PCI_BOTTOM_NIBBLE_OF_LONG_MASK;
-		size = ~(tmp - 1);
-		devices[devnum].bar[0].size = size;
-
-		if (nMBars < IXP425_PCI_MAX_BAR) {
-			memBars[nMBars++] = &devices[devnum].bar[0];
-		} else {
-			devices[devnum].error = TRUE;
-		}
-
-	}
-
-	devices[devnum].bar[1].size = 0;
-}
-
-void sortBars (PciBar * Bars[], unsigned int nBars)
-{
-	unsigned int i, j;
-	PciBar *tmp;
-
-	if (nBars == 0) {
-		return;
-	}
-
-	/* Sort biggest to smallest */
-	for (i = 0; i < nBars - 1; i++) {
-		for (j = i + 1; j < nBars; j++) {
-			if (Bars[j]->size > Bars[i]->size) {
-				/* swap them */
-				tmp = Bars[i];
-				Bars[i] = Bars[j];
-				Bars[j] = tmp;
-			}
-		}
-	}
-}
-
-void calc_bars (PciBar * Bars[], unsigned int nBars, unsigned int startAddr)
-{
-	unsigned int i;
-
-	if (nBars == 0) {
-		return;
-	}
-
-	for (i = 0; i < nBars; i++) {
-		Bars[i]->address |= startAddr;
-		startAddr += Bars[i]->size;
-	}
-}
-
-void sys_pci_device_bars_write (void)
-{
-	unsigned int i;
-	int addr;
-
-	for (i = 1; i < nDevices; i++) {
-		if (devices[i].error) {
-			continue;
-		}
-
-		pci_write_config_dword (devices[i].device,
-					PCI_CFG_BASE_ADDRESS_0,
-					devices[i].bar[0].address);
-		addr = BIT (31 - devices[i].device) |
-			(0 << PCI_NP_AD_FUNCSL) |
-			(PCI_CFG_BASE_ADDRESS_0 & ~3);
-		pci_write_config_dword (devices[i].device,
-					PCI_CFG_DEV_INT_LINE, devices[i].irq);
-
-		pci_write_config_word (devices[i].device,
-				       PCI_CFG_COMMAND, INITIAL_PCI_CMD);
-
-	}
-}
-
-
-int pci_device_exists (unsigned int deviceNo)
-{
-	unsigned int vendorId;
-	unsigned int regval;
-
-	pci_read_config_dword (deviceNo, PCI_CFG_VENDOR_ID, &vendorId);
-
-	/* There are two ways to find out an empty device.
-	 *   1. check Master Abort bit after the access.
-	 *   2. check whether the vendor id read back is 0x0.
-	 */
-	REG_READ (PCI_CSR_BASE, PCI_ISR_OFFSET, regval);
-	if ((vendorId != 0x0) && ((regval & PCI_ISR_PFE) == 0)) {
-		return TRUE;
-	}
-	/*no device present, make sure that the master abort bit is reset */
-
-	REG_WRITE (PCI_CSR_BASE, PCI_ISR_OFFSET, PCI_ISR_PFE);
-	return FALSE;
-}
-
-pci_dev_t pci_find_devices (struct pci_device_id * ids, int devNo)
-{
-	unsigned int i;
-	unsigned int devdidvid;
-	unsigned int didvid;
-	unsigned int vendorId, deviceId;
-
-	vendorId = ids->vendor;
-	deviceId = ids->device;
-	didvid = ((deviceId << 16) & IXP425_PCI_TOP_WORD_OF_LONG_MASK) |
-		(vendorId & IXP425_PCI_BOTTOM_WORD_OF_LONG_MASK);
-
-	for (i = devNo + 1; i < nDevices; i++) {
-
-		pci_read_config_dword (devices[i].device, PCI_CFG_VENDOR_ID,
-				       &devdidvid);
-
-		if (devdidvid == didvid) {
-			return devices[i].device;
-		}
-	}
-	return -1;
-}