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authorKan Yan <kyan@google.com>2016-05-09 19:03:17 -0700
committerMartin Roth <martinroth@google.com>2016-06-02 00:19:11 +0200
commit1bfcc843ff18653fc42fff06c22869406ff52677 (patch)
treecf134c5ccb552f37d2763e1980630c2ad1f416ae /src/mainboard
parent830fdc77cb6ab5333a82833db2fc47725c1b508f (diff)
Gale board: Move TPM setup function to verstage.c
TPM should be only be reset once in verstage. BUG=chrome-os-partner:51096 TEST=Depthcharge no longer shows TPM error. BRANCH=None Original-Signed-off-by: Kan Yan <kyan@google.com> Original-Commit-Id: 911bdaa83a05fa5c8ea82656be0ddc74e19064c3 Original-Change-Id: I52ee6f2c2953e95d617d16f75c8831ecf4f014f9 Original-Reviewed-on: https://chromium-review.googlesource.com/343537 Original-Commit-Ready: Kan Yan <kyan@google.com> Original-Tested-by: Kan Yan <kyan@google.com> Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Change-Id: I8047b7ba44c604d97a662dbf400efc9eea2c7719 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/14845 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'src/mainboard')
-rw-r--r--src/mainboard/google/gale/Makefile.inc1
-rw-r--r--src/mainboard/google/gale/mainboard.c34
-rw-r--r--src/mainboard/google/gale/verstage.c60
3 files changed, 61 insertions, 34 deletions
diff --git a/src/mainboard/google/gale/Makefile.inc b/src/mainboard/google/gale/Makefile.inc
index 7ce1e0d38d..e6236756dd 100644
--- a/src/mainboard/google/gale/Makefile.inc
+++ b/src/mainboard/google/gale/Makefile.inc
@@ -24,6 +24,7 @@ verstage-y += chromeos.c
verstage-y += blsp.c
verstage-y += memlayout.ld
verstage-y += reset.c
+verstage-y += verstage.c
romstage-y += romstage.c
romstage-y += cdp.c
diff --git a/src/mainboard/google/gale/mainboard.c b/src/mainboard/google/gale/mainboard.c
index f0e704a4b4..f27421b87c 100644
--- a/src/mainboard/google/gale/mainboard.c
+++ b/src/mainboard/google/gale/mainboard.c
@@ -37,39 +37,6 @@ static void setup_usb(void)
setup_usb_host1();
}
-#define TPM_RESET_GPIO 19
-void ipq_setup_tpm(void)
-{
- if (!IS_ENABLED(CONFIG_I2C_TPM))
- return;
-
- gpio_tlmm_config_set(TPM_RESET_GPIO, FUNC_SEL_GPIO,
- GPIO_PULL_UP, GPIO_6MA, 1);
- gpio_set(TPM_RESET_GPIO, 0);
- udelay(100);
- gpio_set(TPM_RESET_GPIO, 1);
-
- /*
- * ----- Per the SLB 9615XQ1.2 spec -----
- *
- * 4.7.1 Reset Timing
- *
- * The TPM_ACCESS_x.tpmEstablishment bit has the correct value
- * and the TPM_ACCESS_x.tpmRegValidSts bit is typically set
- * within 8ms after RESET# is deasserted.
- *
- * The TPM is ready to receive a command after less than 30 ms.
- *
- * --------------------------------------
- *
- * I'm assuming this means "wait for 30ms"
- *
- * If we don't wait here, subsequent QUP I2C accesses
- * to the TPM either fail or timeout.
- */
- mdelay(30);
-}
-
static void mainboard_init(device_t dev)
{
/* disable mmu and d-cache before setting up secure world.*/
@@ -78,7 +45,6 @@ static void mainboard_init(device_t dev)
/* Setup mmu and d-cache again as non secure entries. */
setup_mmu(DRAM_INITIALIZED);
setup_usb();
- ipq_setup_tpm();
if (IS_ENABLED(CONFIG_CHROMEOS)) {
/* Copy WIFI calibration data into CBMEM. */
diff --git a/src/mainboard/google/gale/verstage.c b/src/mainboard/google/gale/verstage.c
new file mode 100644
index 0000000000..cdc4386988
--- /dev/null
+++ b/src/mainboard/google/gale/verstage.c
@@ -0,0 +1,60 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google 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.
+ *
+ */
+
+#include <delay.h>
+#include <gpio.h>
+#include <soc/verstage.h>
+
+
+#define TPM_RESET_GPIO 19
+
+static void ipq_setup_tpm(void)
+{
+
+#ifdef CONFIG_I2C_TPM
+ gpio_tlmm_config_set(TPM_RESET_GPIO, FUNC_SEL_GPIO,
+ GPIO_PULL_UP, GPIO_6MA, 1);
+ gpio_set(TPM_RESET_GPIO, 0);
+ udelay(100);
+ gpio_set(TPM_RESET_GPIO, 1);
+
+ /*
+ * ----- Per the SLB 9615XQ1.2 spec -----
+ *
+ * 4.7.1 Reset Timing
+ *
+ * The TPM_ACCESS_x.tpmEstablishment bit has the correct value
+ * and the TPM_ACCESS_x.tpmRegValidSts bit is typically set
+ * within 8ms after RESET# is deasserted.
+ *
+ * The TPM is ready to receive a command after less than 30 ms.
+ *
+ * --------------------------------------
+ *
+ * I'm assuming this means "wait for 30ms"
+ *
+ * If we don't wait here, subsequent QUP I2C accesses
+ * to the TPM either fail or timeout.
+ */
+ mdelay(30);
+
+#endif /* CONFIG_I2C_TPM */
+}
+
+void verstage_mainboard_init(void)
+{
+ ipq_setup_tpm();
+}