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authorKane Chen <kane.chen@intel.com>2017-01-11 12:53:58 +0800
committerAaron Durbin <adurbin@chromium.org>2017-01-14 01:17:40 +0100
commit9d490daf8d8327f8f01123cf152edf75474f54ce (patch)
tree3dbb52467489008af011bf35586a81894a701a10 /src
parente7056a82e098f3d1eb368ef4be021264cb54f20a (diff)
downloadcoreboot-9d490daf8d8327f8f01123cf152edf75474f54ce.tar.xz
soc/intel/apollolake: Allow USB2 eye pattern configuration in devicetree
This code allows people to override the usb2 eye pattern UPD settings for boards. BUG=chrome-os-partner:61031 BRANCH=None TEST=Usb2 function ok and make sure fsp upd is overridden Change-Id: I5fab620a29aba196edf1f24ffe6a1695de1e523e Signed-off-by: Kane Chen <kane.chen@intel.com> Reviewed-on: https://review.coreboot.org/18060 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src')
-rw-r--r--src/soc/intel/apollolake/chip.c32
-rw-r--r--src/soc/intel/apollolake/chip.h5
-rw-r--r--src/soc/intel/apollolake/include/soc/usb.h33
3 files changed, 70 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c
index a24ca33530..1de41cf59c 100644
--- a/src/soc/intel/apollolake/chip.c
+++ b/src/soc/intel/apollolake/chip.c
@@ -436,6 +436,7 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *silupd)
{
FSP_S_CONFIG *silconfig = &silupd->FspsConfig;
static struct soc_intel_apollolake_config *cfg;
+ uint8_t port;
/* Load VBT before devicetree-specific config. */
silconfig->GraphicsConfigPtr = (uintptr_t)vbt;
@@ -491,6 +492,37 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *silupd)
/* Bios config lockdown Audio clk and power gate */
silconfig->BiosCfgLockDown = cfg->hdaudio_bios_config_lockdown;
+ /* USB2 eye diagram settings per port */
+ for (port = 0; port < APOLLOLAKE_USB2_PORT_MAX; port++) {
+ if (cfg->usb2eye[port].Usb20PerPortTxPeHalf != 0)
+ silconfig->PortUsb20PerPortTxPeHalf[port] =
+ cfg->usb2eye[port].Usb20PerPortTxPeHalf;
+
+ if (cfg->usb2eye[port].Usb20PerPortPeTxiSet != 0)
+ silconfig->PortUsb20PerPortPeTxiSet[port] =
+ cfg->usb2eye[port].Usb20PerPortPeTxiSet;
+
+ if (cfg->usb2eye[port].Usb20PerPortTxiSet != 0)
+ silconfig->PortUsb20PerPortTxiSet[port] =
+ cfg->usb2eye[port].Usb20PerPortTxiSet;
+
+ if (cfg->usb2eye[port].Usb20HsSkewSel != 0)
+ silconfig->PortUsb20HsSkewSel[port] =
+ cfg->usb2eye[port].Usb20HsSkewSel;
+
+ if (cfg->usb2eye[port].Usb20IUsbTxEmphasisEn != 0)
+ silconfig->PortUsb20IUsbTxEmphasisEn[port] =
+ cfg->usb2eye[port].Usb20IUsbTxEmphasisEn;
+
+ if (cfg->usb2eye[port].Usb20PerPortRXISet != 0)
+ silconfig->PortUsb20PerPortRXISet[port] =
+ cfg->usb2eye[port].Usb20PerPortRXISet;
+
+ if (cfg->usb2eye[port].Usb20HsNpreDrvSel != 0)
+ silconfig->PortUsb20HsNpreDrvSel[port] =
+ cfg->usb2eye[port].Usb20HsNpreDrvSel;
+ }
+
}
struct chip_operations soc_intel_apollolake_ops = {
diff --git a/src/soc/intel/apollolake/chip.h b/src/soc/intel/apollolake/chip.h
index 5f8fed9a56..d60ffbf9f6 100644
--- a/src/soc/intel/apollolake/chip.h
+++ b/src/soc/intel/apollolake/chip.h
@@ -24,6 +24,7 @@
#include <soc/intel/common/lpss_i2c.h>
#include <device/i2c.h>
#include <soc/pm.h>
+#include <soc/usb.h>
#define CLKREQ_DISABLED 0xf
#define APOLLOLAKE_I2C_DEV_MAX 8
@@ -115,6 +116,10 @@ struct soc_intel_apollolake_config {
/* GPIO pin for PERST_0 */
uint16_t prt0_gpio;
+
+ /* USB2 eye diagram settings per port */
+ struct usb2_eye_per_port usb2eye[APOLLOLAKE_USB2_PORT_MAX];
+
};
#endif /* _SOC_APOLLOLAKE_CHIP_H_ */
diff --git a/src/soc/intel/apollolake/include/soc/usb.h b/src/soc/intel/apollolake/include/soc/usb.h
new file mode 100644
index 0000000000..7220023199
--- /dev/null
+++ b/src/soc/intel/apollolake/include/soc/usb.h
@@ -0,0 +1,33 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 Intel Corp.
+ * (Written by Kane Chen <Kane.Chen@intel.com> for Intel Corp.)
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ */
+
+#ifndef _SOC_APOLLOLAKE_USB_H_
+#define _SOC_APOLLOLAKE_USB_H_
+
+#define APOLLOLAKE_USB2_PORT_MAX 8
+
+struct usb2_eye_per_port {
+ uint8_t Usb20PerPortTxPeHalf;
+ uint8_t Usb20PerPortPeTxiSet;
+ uint8_t Usb20PerPortTxiSet;
+ uint8_t Usb20HsSkewSel;
+ uint8_t Usb20IUsbTxEmphasisEn;
+ uint8_t Usb20PerPortRXISet;
+ uint8_t Usb20HsNpreDrvSel;
+};
+
+#endif /* _SOC_APOLLOLAKE_USB_H_ */