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usbdebug: Support choice of EHCI controller

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Nowadays, chipsets or boards do not only have one USB port with the
capabilities of a debug port but several ones. Some of these ports are
easier accessible than others, so making them configurable is also necessary.
This change adds infrastructure to switch between EHCI controllers,
but does not implement it for any chipset.

Change-Id: I079643870104fbc64091a54e1bfd56ad24422c9f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3438
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
This commit is contained in:
Kyösti Mälkki
2013-08-15 16:27:06 +03:00
parent 2410010018
commit 8101aa6bb0
11 changed files with 132 additions and 62 deletions
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10
src/include/usbdebug.h
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@@ -22,6 +22,13 @@
#define USBDEBUG_H
#define EHCI_BAR_INDEX 0x10
#define PCI_EHCI_CLASSCODE 0x0c0320 /* USB2.0 with EHCI controller */
typedef u32 pci_devfn_t;
pci_devfn_t pci_ehci_dbg_dev(unsigned hcd_idx);
unsigned long pci_ehci_base_regs(pci_devfn_t dev);
void pci_ehci_dbg_set_port(pci_devfn_t dev, unsigned int port);
void pci_ehci_dbg_enable(pci_devfn_t dev, unsigned long base);
#ifndef __PRE_RAM__
#if !CONFIG_USBDEBUG
@@ -42,9 +49,6 @@ void pci_ehci_read_resources(struct device *dev);
struct dbgp_pipe;
void enable_usbdebug(unsigned int port);
void set_debug_port(unsigned port);
int usbdebug_init(void);
struct dbgp_pipe *dbgp_console_output(void);