diff options
Diffstat (limited to 'src/southbridge/amd/sb700')
| -rw-r--r-- | src/southbridge/amd/sb700/sb700_enable_usbdebug.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/src/southbridge/amd/sb700/sb700_enable_usbdebug.c b/src/southbridge/amd/sb700/sb700_enable_usbdebug.c index 06bcab77a3..0f40d862a7 100644 --- a/src/southbridge/amd/sb700/sb700_enable_usbdebug.c +++ b/src/southbridge/amd/sb700/sb700_enable_usbdebug.c @@ -17,25 +17,30 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#include <stdint.h> #include <usbdebug.h> +#include <device/pci_def.h> -#ifndef SB700_DEVN_BASE -#define SB700_DEVN_BASE 0 -#endif - -#define EHCI_BAR_INDEX 0x10 -#define EHCI_BAR 0xFEF00000 -#define EHCI_DEBUG_OFFSET 0xE0 +#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 */ /* 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 sb700_enable_usbdebug(u32 port) +static void sb700_enable_usbdebug(unsigned int port) { + device_t dev = PCI_DEV(0, 0x13, 5); /* USB EHCI, D19:F5 */ + + /* Select the requested physical USB port (1-15) as the Debug Port. */ set_debug_port(port); - pci_write_config32(PCI_DEV(0, SB700_DEVN_BASE + 0x13, 5), - EHCI_BAR_INDEX, EHCI_BAR); - pci_write_config8(PCI_DEV(0, SB700_DEVN_BASE + 0x13, 5), 0x04, 0x2); /* mem space enable */ + + /* Set the EHCI BAR address. */ + pci_write_config32(dev, EHCI_BAR_INDEX, EHCI_BAR); + + /* Enable access to the EHCI memory space registers. */ + pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY); } |