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libpayload: Add USB support for non-PCI controllers

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Restructure USB stack to not depend on PCI, and
make PCI stub available on x86, but provide fixed
BARs for ARM (Exynos 5)

Change-Id: Iee7c8b134c22b661a9a515e24943470c9dbadd1f
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/49970
Reviewed-on: http://review.coreboot.org/4175
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
This commit is contained in:
Stefan Reinauer
2013-05-02 16:16:41 -07:00
committed by Stefan Reinauer
parent 441a4baf87
commit 8992e53c23
16 changed files with 142 additions and 58 deletions
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33
payloads/libpayload/drivers/usb/usbinit.c
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@@ -27,6 +27,7 @@
* SUCH DAMAGE.
*/
//#define USB_DEBUG
#include <libpayload-config.h>
#include <usb/usb.h>
#include "uhci.h"
@@ -35,6 +36,7 @@
#include "xhci.h"
#include <usb/usbdisk.h>
#ifdef CONFIG_USB_PCI
/**
* Initializes USB controller attached to PCI
*
@@ -58,8 +60,6 @@ static int usb_controller_initialize(int bus, int dev, int func)
prog_if = (class >> 8) & 0xff;
/* enable busmaster */
#define PCI_COMMAND 4
#define PCI_COMMAND_MASTER 4
if (devclass == 0xc03) {
u32 pci_command;
@@ -73,7 +73,7 @@ static int usb_controller_initialize(int bus, int dev, int func)
case 0x00:
#ifdef CONFIG_USB_UHCI
usb_debug("UHCI controller\n");
uhci_init (pci_device);
uhci_pci_init (pci_device);
#else
usb_debug("UHCI controller (not supported)\n");
#endif
@@ -82,7 +82,7 @@ static int usb_controller_initialize(int bus, int dev, int func)
case 0x10:
#ifdef CONFIG_USB_OHCI
usb_debug("OHCI controller\n");
ohci_init(pci_device);
ohci_pci_init(pci_device);
#else
usb_debug("OHCI controller (not supported)\n");
#endif
@@ -91,7 +91,7 @@ static int usb_controller_initialize(int bus, int dev, int func)
case 0x20:
#ifdef CONFIG_USB_EHCI
usb_debug("EHCI controller\n");
ehci_init(pci_device);
ehci_pci_init(pci_device);
#else
usb_debug("EHCI controller (not supported)\n");
#endif
@@ -100,7 +100,7 @@ static int usb_controller_initialize(int bus, int dev, int func)
case 0x30:
#ifdef CONFIG_USB_XHCI
usb_debug("xHCI controller\n");
xhci_init(pci_device);
xhci_pci_init(pci_device);
#else
usb_debug("xHCI controller (not supported)\n");
#endif
@@ -154,12 +154,33 @@ static void usb_scan_pci_bus(int bus)
}
}
}
#endif
#ifdef CONFIG_USB_MEMORY
static void usb_scan_memory(void)
{
#ifdef CONFIG_USB_XHCI
xhci_init((void *)(unsigned long)CONFIG_USB_XHCI_BASE_ADDRESS);
#endif
#ifdef CONFIG_USB_EHCI
ehci_init((void *)(unsigned long)CONFIG_USB_EHCI_BASE_ADDRESS);
#endif
#ifdef CONFIG_USB_OHCI
ohci_init((void *)(unsigned long)CONFIG_USB_OHCI_BASE_ADDRESS);
#endif
}
#endif
/**
* Initialize all USB controllers attached to PCI.
*/
int usb_initialize(void)
{
#ifdef CONFIG_USB_PCI
usb_scan_pci_bus(0);
#endif
#ifdef CONFIG_USB_MEMORY
usb_scan_memory();
#endif
return 0;
}