#ifndef EHCI_H
#define EHCI_H
+#define EHCI_BAR_INDEX 0x10
+
/* EHCI register interface, corresponds to EHCI Revision 0.95 specification */
/* Section 2.2 Host Controller Capability Registers */
void set_ehci_debug(unsigned ehci_deug);
unsigned get_ehci_debug(void);
void set_debug_port(unsigned port);
+void early_usbdebug_init(void);
void usbdebug_ram_tx_byte(unsigned char data);
void usbdebug_tx_byte(unsigned char data);
#include "northbridge/amd/amdk8/reset_test.c"
#include "superio/ite/it8712f/it8712f_early_serial.c"
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb600/sb600_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include "cpu/x86/bist.h"
#include "cpu/x86/lapic/boot_cpu.c"
#include "northbridge/amd/amdk8/reset_test.c"
#include "superio/ite/it8718f/it8718f_early_serial.c"
-
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb700/sb700_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include "cpu/x86/bist.h"
static int smbus_read_byte(u32 device, u32 address);
#include "superio/ite/it8718f/it8718f_early_serial.c"
-
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb700/sb700_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include <cpu/amd/mtrr.h>
#include "cpu/x86/lapic/boot_cpu.c"
#include "northbridge/amd/amdk8/reset_test.c"
#include "superio/ite/it8712f/it8712f_early_serial.c"
-
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb600/sb600_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include "cpu/x86/bist.h"
static int smbus_read_byte(u32 device, u32 address);
#include "superio/ite/it8718f/it8718f_early_serial.c"
-
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb700/sb700_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include <cpu/amd/mtrr.h>
#include "cpu/x86/lapic/boot_cpu.c"
#include "northbridge/amd/amdk8/reset_test.c"
#include "superio/winbond/w83627dhg/w83627dhg_early_serial.c"
-
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb700/sb700_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include "cpu/x86/bist.h"
static int smbus_read_byte(u32 device, u32 address);
#include "superio/ite/it8712f/it8712f_early_serial.c"
-
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb700/sb700_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include <cpu/amd/mtrr.h>
#include <device/pnp_def.h>
#include <cpu/x86/lapic.h>
#include <lib.h>
+#include <usbdebug.h>
#include <pc80/mc146818rtc.h>
#include <pc80/mc146818rtc.h>
#include <console/console.h>
-#if CONFIG_USBDEBUG
-#include "southbridge/sis/sis966/sis966_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include <cpu/amd/model_fxx_rev.h>
+#include "southbridge/sis/sis966/sis966.h"
#include "southbridge/sis/sis966/sis966_early_smbus.c"
#include "southbridge/sis/sis966/sis966_enable_rom.c"
#include "northbridge/amd/amdk8/raminit.h"
#include <pc80/mc146818rtc.h>
#include <console/console.h>
-#if CONFIG_USBDEBUG
-#include "southbridge/nvidia/mcp55/mcp55_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include <cpu/amd/model_fxx_rev.h>
static int smbus_read_byte(u32 device, u32 address);
#include "superio/ite/it8718f/it8718f_early_serial.c"
-
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb700/sb700_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include <cpu/amd/mtrr.h>
static int smbus_read_byte(u32 device, u32 address);
#include "superio/ite/it8718f/it8718f_early_serial.c"
-
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb700/sb700_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include <cpu/amd/mtrr.h>
#include <pc80/mc146818rtc.h>
#include <console/console.h>
+#include <usbdebug.h>
#include <cpu/x86/bist.h>
#include "superio/winbond/w83627ehg/w83627ehg_early_serial.c"
static int smbus_read_byte(u32 device, u32 address);
#include "superio/fintek/f71859/f71859_early_serial.c"
-
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb700/sb700_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include <cpu/amd/mtrr.h>
#include <pc80/mc146818rtc.h>
#include <console/console.h>
+#include <usbdebug.h>
#include <cpu/x86/bist.h>
#include "superio/smsc/lpc47m15x/lpc47m15x_early_serial.c"
#define SERIAL_DEV PNP_DEV(0x2e, F71863FG_SP1)
#endif
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb700/sb700_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include <cpu/amd/mtrr.h>
#include <device/pci_def.h>
#include <device/pnp_def.h>
#include <cpu/x86/lapic.h>
+#include <usbdebug.h>
#include "superio/winbond/w83627thg/w83627thg.h"
#include "northbridge/amd/amdk8/debug.c"
#include "superio/winbond/w83627dhg/w83627dhg_early_serial.c"
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb600/sb600_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include "cpu/x86/bist.h"
#include <pc80/mc146818rtc.h>
#include <console/console.h>
-#if CONFIG_USBDEBUG
-#include "southbridge/nvidia/mcp55/mcp55_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include <cpu/amd/model_fxx_rev.h>
#include "southbridge/nvidia/mcp55/mcp55_early_smbus.c"
#include "northbridge/amd/amdk8/raminit.h"
#include <arch/romcc_io.h>
#include <cpu/x86/lapic.h>
#include <console/console.h>
-#if CONFIG_USBDEBUG
-#include "southbridge/nvidia/mcp55/mcp55_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include <lib.h>
#include <cpu/amd/model_10xxx_rev.h>
#include <pc80/mc146818rtc.h>
#include <console/console.h>
-#if CONFIG_USBDEBUG
-#include "southbridge/nvidia/mcp55/mcp55_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include <lib.h>
#include <cpu/amd/model_fxx_rev.h>
#include <pc80/mc146818rtc.h>
#include <console/console.h>
+#include <usbdebug.h>
#include <cpu/x86/bist.h>
#include "northbridge/intel/i945/i945.h"
#include "northbridge/amd/amdk8/reset_test.c"
#include "northbridge/amd/amdk8/debug.c"
#include "superio/ite/it8712f/it8712f_early_serial.c"
-
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb600/sb600_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include "cpu/x86/bist.h"
#include "northbridge/amd/amdk8/reset_test.c"
#include "northbridge/amd/amdk8/debug.c"
#include "superio/ite/it8712f/it8712f_early_serial.c"
-
-#if CONFIG_USBDEBUG
-#include "southbridge/amd/sb600/sb600_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include "cpu/x86/mtrr/earlymtrr.c"
#include "cpu/x86/bist.h"
#include <pc80/mc146818rtc.h>
#include <console/console.h>
-#if CONFIG_USBDEBUG
-#include "southbridge/nvidia/mcp55/mcp55_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
#include <lib.h>
+#include <usbdebug.h>
#include <cpu/amd/model_fxx_rev.h>
#include <arch/romcc_io.h>
#include <cpu/x86/lapic.h>
#include <console/console.h>
-#if CONFIG_USBDEBUG
-#include "southbridge/nvidia/mcp55/mcp55_enable_usbdebug.c"
-#include "pc80/usbdebug_serial.c"
-#endif
+#include <usbdebug.h>
#include <lib.h>
#include <cpu/amd/model_10xxx_rev.h>
*/
#include "../lib/usbdebug.c"
+#include <arch/io.h>
+#include <ehci.h>
-static void early_usbdebug_init(void)
+void early_usbdebug_init(void)
{
struct ehci_debug_info *dbg_info = (struct ehci_debug_info *)
(CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE - sizeof(struct ehci_debug_info));
- usbdebug_init(EHCI_BAR, EHCI_DEBUG_OFFSET, dbg_info);
+ usbdebug_init(CONFIG_EHCI_BAR, CONFIG_EHCI_DEBUG_OFFSET, dbg_info);
}
void usbdebug_tx_byte(unsigned char data)
select IOAPIC
select HAVE_USBDEBUG
+config EHCI_BAR
+ hex
+ default 0xfef00000 if SOUTHBRIDGE_AMD_SB600
+
+config EHCI_DEBUG_OFFSET
+ hex
+ default 0xe0 if SOUTHBRIDGE_AMD_SB600
+
driver-y += sb600_ac97.c
driver-y += sb600_pci.c
ramstage-y += sb600_reset.c
+romstage-y += sb600_enable_usbdebug.c
void sb600_lpc_port80(void);
void sb600_pci_port80(void);
+void sb600_enable_usbdebug(unsigned int port);
#endif /* SB600_H */
*/
#include <stdint.h>
+#include <arch/io.h>
+#include <arch/romcc_io.h>
#include <usbdebug.h>
#include <device/pci_def.h>
-
-#define EHCI_BAR 0xFEF00000 /* EHCI BAR address */
-#define EHCI_BAR_INDEX 0x10 /* TODO: DBUG_PRT[31:29] */
-#define EHCI_DEBUG_OFFSET 0xE0 /* Hardcoded to 0xE0 */
+#include "sb600.h"
/* Required for successful build, but currently empty. */
void set_debug_port(unsigned int port)
/* TODO: Allow changing the physical USB port used as Debug Port. */
}
-static void sb600_enable_usbdebug(unsigned int port)
+void sb600_enable_usbdebug(unsigned int port)
{
device_t dev = PCI_DEV(0, 0x13, 5); /* USB EHCI, D19:F5 */
set_debug_port(port);
/* Set the EHCI BAR address. */
- pci_write_config32(dev, EHCI_BAR_INDEX, EHCI_BAR);
+ pci_write_config32(dev, EHCI_BAR_INDEX, CONFIG_EHCI_BAR);
/* Enable access to the EHCI memory space registers. */
pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY);
default n
depends on SOUTHBRIDGE_AMD_SB700
+config EHCI_BAR
+ hex
+ default 0xfef00000 if SOUTHBRIDGE_AMD_SB700
+
+config EHCI_DEBUG_OFFSET
+ hex
+ default 0xe0 if SOUTHBRIDGE_AMD_SB700
+
driver-y += sb700_hda.c
driver-y += sb700_pci.c
ramstage-y += sb700_reset.c
+romstage-y += sb700_enable_usbdebug.c
#endif
+void sb700_enable_usbdebug(unsigned int port);
#endif /* SB700_H */
*/
#include <stdint.h>
+#include <arch/io.h>
+#include <arch/romcc_io.h>
#include <usbdebug.h>
#include <device/pci_def.h>
+#include "sb700.h"
-#define EHCI_BAR 0xFEF00000 /* EHCI BAR address */
-#define EHCI_BAR_INDEX 0x10 /* TODO: DBUG_PRT[31:29] */
-#define EHCI_DEBUG_OFFSET 0xE0 /* Hardcoded to 0xE0 */
-
-#define EHCI_EOR (EHCI_BAR + 0x20)
+#define EHCI_EOR (CONFIG_EHCI_BAR + 0x20)
#define DEBUGPORT_MISC_CONTROL (EHCI_EOR + 0x80)
void set_debug_port(unsigned int port)
* This code currently only supports the first one, i.e., USB Debug devices
* attached to physical USB ports belonging to the first EHCI device.
*/
-static void sb700_enable_usbdebug(unsigned int port)
+void sb700_enable_usbdebug(unsigned int port)
{
device_t dev = PCI_DEV(0, 0x12, 2); /* USB EHCI, D18:F2 */
/* Set the EHCI BAR address. */
- pci_write_config32(dev, EHCI_BAR_INDEX, EHCI_BAR);
+ pci_write_config32(dev, EHCI_BAR_INDEX, CONFIG_EHCI_BAR);
/* Enable access to the EHCI memory space registers. */
pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY);
select HAVE_USBDEBUG
select USE_WATCHDOG_ON_BOOT
+config EHCI_BAR
+ hex
+ default 0xfef00000 if SOUTHBRIDGE_INTEL_I82801GX
+
+config EHCI_DEBUG_OFFSET
+ hex
+ default 0xa0 if SOUTHBRIDGE_INTEL_I82801GX
+
#ifndef __ACPI__
#define DEBUG_PERIODIC_SMIS 0
+#if !defined(ASSEMBLY)
#if !defined(__PRE_RAM__)
#include "chip.h"
extern void i82801gx_enable(device_t dev);
#endif
+void i82801gx_enable_usbdebug(unsigned int port);
+#endif
#define MAINBOARD_POWER_OFF 0
#define MAINBOARD_POWER_ON 1
*/
#include <stdint.h>
+#include <arch/io.h>
+#include <arch/romcc_io.h>
+#include <console/console.h>
#include <usbdebug.h>
#include <device/pci_def.h>
-
-#define EHCI_BAR 0xFEF00000 /* EHCI BAR address */
-#define EHCI_BAR_INDEX 0x10 /* Hardwired 0x10 (>= ICH4). */
-#define EHCI_DEBUG_OFFSET 0xA0 /* Hardwired 0xa0 (>= ICH5). */
+#include "i82801gx.h"
/* Required for successful build, but currently empty. */
void set_debug_port(unsigned int port)
/* Not needed, the ICH* southbridges hardcode physical USB port 1. */
}
-static void i82801gx_enable_usbdebug(unsigned int port)
+void i82801gx_enable_usbdebug(unsigned int port)
{
u32 dbgctl;
device_t dev = PCI_DEV(0, 0x1d, 7); /* USB EHCI, D29:F7 */
/* Set the EHCI BAR address. */
- pci_write_config32(dev, EHCI_BAR_INDEX, EHCI_BAR);
+ pci_write_config32(dev, EHCI_BAR_INDEX, CONFIG_EHCI_BAR);
/* Enable access to the EHCI memory space registers. */
pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY);
/* Force ownership of the Debug Port to the EHCI controller. */
printk(BIOS_DEBUG, "Enabling OWNER_CNT\n");
- dbgctl = read32(EHCI_BAR + EHCI_DEBUG_OFFSET);
+ dbgctl = read32(CONFIG_EHCI_BAR + CONFIG_EHCI_DEBUG_OFFSET);
dbgctl |= (1 << 30);
- write32(EHCI_BAR + EHCI_DEBUG_OFFSET, dbgctl);
+ write32(CONFIG_EHCI_BAR + CONFIG_EHCI_DEBUG_OFFSET, dbgctl);
}
hex
default 0x80 if SOUTHBRIDGE_NVIDIA_CK804
+config EHCI_BAR
+ hex
+ default 0xfef00000 if SOUTHBRIDGE_NVIDIA_CK804
+
+config EHCI_DEBUG_OFFSET
+ hex
+ default 0x98 if SOUTHBRIDGE_NVIDIA_CK804
+
ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += ck804_fadt.c
+romstage-y += ck804_enable_usbdebug.c
+
chipset_bootblock_inc += $(src)/southbridge/nvidia/ck804/romstrap.inc
chipset_bootblock_lds += $(src)/southbridge/nvidia/ck804/romstrap.lds
+
#include "chip.h"
void ck804_enable(device_t dev);
+void ck804_enable_usbdebug(unsigned int port);
#endif
*/
#include <stdint.h>
+#include <arch/io.h>
+#include <arch/romcc_io.h>
#include <usbdebug.h>
#include <device/pci_def.h>
+#include "ck804.h"
#if CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20
#define CK804_DEVN_BASE CONFIG_HT_CHAIN_END_UNITID_BASE
#define CK804_DEVN_BASE CONFIG_HT_CHAIN_UNITID_BASE
#endif
-#define EHCI_BAR 0xFEF00000 /* EHCI BAR address */
-#define EHCI_BAR_INDEX 0x10
-#define EHCI_DEBUG_OFFSET 0x98
-
void set_debug_port(unsigned int port)
{
u32 dword;
pci_write_config32(dev, 0x74, dword);
}
-static void ck804_enable_usbdebug(unsigned int port)
+void ck804_enable_usbdebug(unsigned int port)
{
device_t dev = PCI_DEV(0, CK804_DEVN_BASE + 2, 1); /* USB EHCI */
set_debug_port(port);
/* Set the EHCI BAR address. */
- pci_write_config32(dev, EHCI_BAR_INDEX, EHCI_BAR);
+ pci_write_config32(dev, EHCI_BAR_INDEX, CONFIG_EHCI_BAR);
/* Enable access to the EHCI memory space registers. */
pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY);
config ID_SECTION_OFFSET
hex
default 0x80 if SOUTHBRIDGE_NVIDIA_MCP55
+
+config EHCI_BAR
+ hex
+ default 0xfef00000 if SOUTHBRIDGE_NVIDIA_MCP55
+
+config EHCI_DEBUG_OFFSET
+ hex
+ default 0x98 if SOUTHBRIDGE_NVIDIA_MCP55
+
ramstage-y += mcp55_reset.c
+romstage-y += mcp55_enable_usbdebug.c
+
chipset_bootblock_inc += $(src)/southbridge/nvidia/mcp55/romstrap.inc
chipset_bootblock_lds += $(src)/southbridge/nvidia/mcp55/romstrap.lds
#else
void enable_fid_change_on_sb(unsigned sbbusn, unsigned sbdn);
#endif
+void mcp55_enable_usbdebug(unsigned int port);
#endif /* MCP55_H */
*/
#include <stdint.h>
+#include <arch/io.h>
+#include <arch/romcc_io.h>
#include <usbdebug.h>
#include <device/pci_def.h>
+#include "mcp55.h"
#if CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20
#define MCP55_DEVN_BASE CONFIG_HT_CHAIN_END_UNITID_BASE
#define MCP55_DEVN_BASE CONFIG_HT_CHAIN_UNITID_BASE
#endif
-#define EHCI_BAR 0xFEF00000 /* EHCI BAR address */
-#define EHCI_BAR_INDEX 0x10
-#define EHCI_DEBUG_OFFSET 0x98
-
void set_debug_port(unsigned int port)
{
u32 dword;
pci_write_config32(dev, 0x74, dword);
}
-static void mcp55_enable_usbdebug(unsigned int port)
+void mcp55_enable_usbdebug(unsigned int port)
{
device_t dev = PCI_DEV(0, MCP55_DEVN_BASE + 2, 1); /* USB EHCI */
set_debug_port(port);
/* Set the EHCI BAR address. */
- pci_write_config32(dev, EHCI_BAR_INDEX, EHCI_BAR);
+ pci_write_config32(dev, EHCI_BAR_INDEX, CONFIG_EHCI_BAR);
/* Enable access to the EHCI memory space registers. */
pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY);
config ID_SECTION_OFFSET
hex
default 0x80 if SOUTHBRIDGE_SIS_SIS966
+
+config EHCI_BAR
+ hex
+ default 0xfef00000 if SOUTHBRIDGE_SIS_SIS966
+
+config EHCI_DEBUG_OFFSET
+ hex
+ default 0x98 if SOUTHBRIDGE_SIS_SIS966
driver-y += sis966_pcie.c
driver-y += sis966_aza.c
ramstage-y += sis966_reset.c
+romstage-y += sis966_enable_usbdebug.c
chipset_bootblock_inc += $(src)/southbridge/sis/sis966/romstrap.inc
chipset_bootblock_lds += $(src)/southbridge/sis/sis966/romstrap.lds
#include "chip.h"
void sis966_enable(device_t dev);
+void sis966_enable_usbdebug(unsigned int port);
#endif /* SIS966_H */
/* TODO: Check whether this actually works (might be copy-paste leftover). */
#include <stdint.h>
+#include <arch/io.h>
+#include <arch/romcc_io.h>
#include <usbdebug.h>
#include <device/pci_def.h>
+#include "sis966.h"
#if CONFIG_HT_CHAIN_END_UNITID_BASE < CONFIG_HT_CHAIN_UNITID_BASE
#define SIS966_DEVN_BASE CONFIG_HT_CHAIN_END_UNITID_BASE
#define SIS966_DEVN_BASE CONFIG_HT_CHAIN_UNITID_BASE
#endif
-#define EHCI_BAR 0xFEF00000 /* EHCI BAR address */
-#define EHCI_BAR_INDEX 0x10
-#define EHCI_DEBUG_OFFSET 0x98
-
void set_debug_port(unsigned int port)
{
u32 dword;
pci_write_config32(dev, 0x74, dword);
}
-static void sis966_enable_usbdebug(unsigned int port)
+void sis966_enable_usbdebug(unsigned int port)
{
device_t dev = PCI_DEV(0, SIS966_DEVN_BASE + 2, 1); /* USB EHCI */
set_debug_port(port);
/* Set the EHCI BAR address. */
- pci_write_config32(dev, EHCI_BAR_INDEX, EHCI_BAR);
+ pci_write_config32(dev, EHCI_BAR_INDEX, CONFIG_EHCI_BAR);
/* Enable access to the EHCI memory space registers. */
pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY);