diff options
author | Marc Jones <marcj303@gmail.com> | 2017-05-04 21:17:45 -0600 |
---|---|---|
committer | Martin Roth <martinroth@google.com> | 2017-06-26 00:45:41 +0000 |
commit | 244848462def7075e0c812a2f71c408668cacfe4 (patch) | |
tree | fde926f45d478b36eaebfd1261886c973b803857 /src/soc/amd/stoneyridge/enable_usbdebug.c | |
parent | a0199d8e1a96d94828b31f77e0a29a282871a76a (diff) |
soc: Add AMD Stoney Ridge southbridge code
Copy the Hudson/Kern code from southbridge/amd/pi/hudson. This
is the first of a series of patches to migrate Stoney Ridge
support from cpu, northbridge, and southbridge to soc/
Changes:
- add soc/amd/stoneyridge and soc/amd/common
- remove all other Husdon versions
- update include paths, etc
- clean up Kconfig and Makefile
- create chip.c to contain chip_ops
Change-Id: Ib88a868e654ad127be70ecc506f6b90b784f8d1b
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/19722
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/soc/amd/stoneyridge/enable_usbdebug.c')
-rw-r--r-- | src/soc/amd/stoneyridge/enable_usbdebug.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/soc/amd/stoneyridge/enable_usbdebug.c b/src/soc/amd/stoneyridge/enable_usbdebug.c new file mode 100644 index 0000000000..dc09b85503 --- /dev/null +++ b/src/soc/amd/stoneyridge/enable_usbdebug.c @@ -0,0 +1,59 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2010 Advanced Micro Devices, Inc. + * + * 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; version 2 of the License. + * + * 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. + */ + +// Use simple device model for this file even in ramstage +#define __SIMPLE_DEVICE__ + +#include <stdint.h> +#include <arch/io.h> +#include <device/pci_ehci.h> +#include <device/pci_def.h> +#include <soc/hudson.h> + +#define DEBUGPORT_MISC_CONTROL 0x80 + +pci_devfn_t pci_ehci_dbg_dev(unsigned int hcd_idx) +{ + if (hcd_idx == 3) + return PCI_DEV(0, 0x16, 0); + else if (hcd_idx == 2) + return PCI_DEV(0, 0x13, 0); + else + return PCI_DEV(0, 0x12, 0); +} + +void pci_ehci_dbg_set_port(pci_devfn_t dev, unsigned int port) +{ + u8 *base_regs = pci_ehci_base_regs(dev); + u32 reg32; + + /* Write the port number to DEBUGPORT_MISC_CONTROL[31:28]. */ + reg32 = read32(base_regs + DEBUGPORT_MISC_CONTROL); + reg32 &= ~(0xf << 28); + reg32 |= (port << 28); + reg32 |= (1 << 27); /* Enable Debug Port port number remapping. */ + write32(base_regs + DEBUGPORT_MISC_CONTROL, reg32); +} + + +void pci_ehci_dbg_enable(pci_devfn_t dev, unsigned long base) +{ + /* Enable all of the USB controllers */ + outb(0xEF, PM_INDEX); + outb(0x7F, PM_DATA); + + pci_write_config32(dev, EHCI_BAR_INDEX, base); + pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); +} |