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Diffstat (limited to 'src/soc/qualcomm/qcs405/blsp.c')
-rw-r--r--src/soc/qualcomm/qcs405/blsp.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/src/soc/qualcomm/qcs405/blsp.c b/src/soc/qualcomm/qcs405/blsp.c
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index 0000000000..f185ea388a
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+++ b/src/soc/qualcomm/qcs405/blsp.c
@@ -0,0 +1,65 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 - 2016, 2019 The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ * * Neither the name of The Linux Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <device/mmio.h>
+#include <soc/blsp.h>
+#include <soc/gpio.h>
+#include <soc/iomap.h>
+#include <soc/clock.h>
+
+blsp_return_t blsp_i2c_init(blsp_qup_id_t id)
+{
+ void *base;
+
+ switch (id) {
+ case BLSP_QUP_ID_1:
+ gpio_configure
+ (GPIO(24), 2, GPIO_PULL_UP, GPIO_2MA, GPIO_OUTPUT);
+ gpio_configure
+ (GPIO(25), 2, GPIO_PULL_UP, GPIO_2MA, GPIO_OUTPUT);
+ break;
+ default:
+ return BLSP_ID_ERROR;
+ }
+
+ clock_configure_i2c(19200000);
+ clock_enable_i2c();
+
+ base = blsp_qup_base(id);
+
+ if (!base)
+ return BLSP_ID_ERROR;
+
+ /* Configure Mini core to I2C core */
+ clrsetbits_le32(base, BLSP_MINI_CORE_MASK, BLSP_MINI_CORE_I2C);
+
+ return BLSP_SUCCESS;
+}