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coreboot-kgpe-d16/src/soc/intel/apollolake/xdci.c

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soc/intel/apollolake: Move XDCI in its own file Split out dual-port switching functionality into dedicated xdci.c. Change-Id: Ia58fc3fb6d017dd0c19cc450d1caba307fc89a7b Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/18226 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-01-25 06:56:36 +01:00
/*
* This file is part of the coreboot project.
*
*
* 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.
*/
device/mmio.h: Add include file for MMIO ops MMIO operations are arch-agnostic so the include path should not be arch/. Change-Id: I0fd70f5aeca02e98e96b980c3aca0819f5c44b98 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/31691 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-03-03 07:01:05 +01:00
#include <device/mmio.h>
soc/intel/apollolake: Move XDCI in its own file Split out dual-port switching functionality into dedicated xdci.c. Change-Id: Ia58fc3fb6d017dd0c19cc450d1caba307fc89a7b Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/18226 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-01-25 06:56:36 +01:00
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
soc/intel/apollolake: Use XDCI common code This patch performs apollolake specific XDCI controller initialization. Change-Id: I4649bffe1bb90d7df6a72b5334793bf8f0fdbaeb Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/19429 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-04-24 08:24:34 +02:00
#include <intelblocks/xdci.h>
soc/intel/apollolake: Move XDCI in its own file Split out dual-port switching functionality into dedicated xdci.c. Change-Id: Ia58fc3fb6d017dd0c19cc450d1caba307fc89a7b Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/18226 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-01-25 06:56:36 +01:00
#include <soc/pci_devs.h>
#include <timer.h>
#define DUAL_ROLE_CFG0 0x80d8
# define DRD_CONFIG_MASK (0x3 << 0)
# define DRD_CONFIG_DYNAMIC (0x0 << 0)
# define DRD_CONFIG_HOST (0x1 << 0)
# define DRD_CONFIG_DEVICE (0x2 << 0)
# define SW_VBUS_VALID_MASK (1 << 24)
# define SW_VBUS_DEASSERT_VALID (0 << 24)
# define SW_VBUS_ASSERT_VALID (1 << 24)
# define SW_IDPIN_EN_MASK (1 << 21)
# define SW_IDPIN_DIS (0 << 21)
# define SW_IDPIN_EN (1 << 21)
# define SW_IDPIN_MASK (1 << 20)
# define SW_IDPIN_HOST (0 << 20)
# define SW_IDPIN_DEVICE (1 << 20)
#define DUAL_ROLE_CFG1 0x80dc
# define DRD_MODE_MASK (1 << 29)
# define DRD_MODE_DEVICE (0 << 29)
# define DRD_MODE_HOST (1 << 29)
static void configure_host_mode_port0(struct device *dev)
{
uint32_t *cfg0;
uint32_t *cfg1;
const struct resource *res;
uint32_t reg;
struct stopwatch sw;
soc/intel/apollolake: Use XDCI common code This patch performs apollolake specific XDCI controller initialization. Change-Id: I4649bffe1bb90d7df6a72b5334793bf8f0fdbaeb Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/19429 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-04-24 08:24:34 +02:00
struct device *xdci_dev = PCH_DEV_XDCI;
soc/intel/apollolake: Move XDCI in its own file Split out dual-port switching functionality into dedicated xdci.c. Change-Id: Ia58fc3fb6d017dd0c19cc450d1caba307fc89a7b Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/18226 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-01-25 06:56:36 +01:00
/*
* Only default to host mode if the xdci device is present and
* enabled. If it's disabled assume the switch was already done
* in FSP.
*/
soc/intel/apollolake: Limit xDCI feature when VBOOT is enabled Use the common xDCI function to check if the controller is allowed in the current mode before enabling it. Otherwise, disable the PCI device if it has been enabled in devicetree. Change-Id: I5aea15511c52d1191babf551feb237f4144683e4 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/25364 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-03-26 11:19:58 +02:00
if (!dev->enabled || !xdci_dev->enabled || !xdci_can_enable())
soc/intel/apollolake: Move XDCI in its own file Split out dual-port switching functionality into dedicated xdci.c. Change-Id: Ia58fc3fb6d017dd0c19cc450d1caba307fc89a7b Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/18226 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-01-25 06:56:36 +01:00
return;
printk(BIOS_INFO, "Putting port 0 into host mode.\n");
soc/intel/apollolake: Use XDCI common code This patch performs apollolake specific XDCI controller initialization. Change-Id: I4649bffe1bb90d7df6a72b5334793bf8f0fdbaeb Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/19429 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-04-24 08:24:34 +02:00
res = find_resource(xdci_dev, PCI_BASE_ADDRESS_0);
soc/intel/apollolake: Move XDCI in its own file Split out dual-port switching functionality into dedicated xdci.c. Change-Id: Ia58fc3fb6d017dd0c19cc450d1caba307fc89a7b Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/18226 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-01-25 06:56:36 +01:00
cfg0 = (void *)(uintptr_t)(res->base + DUAL_ROLE_CFG0);
cfg1 = (void *)(uintptr_t)(res->base + DUAL_ROLE_CFG1);
reg = read32(cfg0);
reg &= ~(DRD_CONFIG_MASK | SW_IDPIN_EN_MASK | SW_IDPIN_MASK);
reg &= ~(SW_VBUS_VALID_MASK);
reg |= DRD_CONFIG_DYNAMIC | SW_IDPIN_EN | SW_IDPIN_HOST;
reg |= SW_VBUS_DEASSERT_VALID;
write32(cfg0, reg);
stopwatch_init_msecs_expire(&sw, 10);
/* Wait for the host mode status bit. */
while ((read32(cfg1) & DRD_MODE_MASK) != DRD_MODE_HOST) {
if (stopwatch_expired(&sw)) {
printk(BIOS_INFO, "Timed out waiting for host mode.\n");
break;
}
}
soc/intel/apollolake: Use XDCI common code This patch performs apollolake specific XDCI controller initialization. Change-Id: I4649bffe1bb90d7df6a72b5334793bf8f0fdbaeb Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/19429 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-04-24 08:24:34 +02:00
printk(BIOS_INFO, "XDCI port 0 host switch over took %lu ms\n",
soc/intel/apollolake: Move XDCI in its own file Split out dual-port switching functionality into dedicated xdci.c. Change-Id: Ia58fc3fb6d017dd0c19cc450d1caba307fc89a7b Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/18226 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-01-25 06:56:36 +01:00
stopwatch_duration_msecs(&sw));
}
soc/intel/apollolake: Use XDCI common code This patch performs apollolake specific XDCI controller initialization. Change-Id: I4649bffe1bb90d7df6a72b5334793bf8f0fdbaeb Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/19429 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-04-24 08:24:34 +02:00
void soc_xdci_init(struct device *dev)
soc/intel/apollolake: Move XDCI in its own file Split out dual-port switching functionality into dedicated xdci.c. Change-Id: Ia58fc3fb6d017dd0c19cc450d1caba307fc89a7b Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/18226 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-01-25 06:56:36 +01:00
{
configure_host_mode_port0(dev);
}
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