platform/target: msmtitanium: Add Initial platform support for MSMTITANIUM
This patch adds support for the initial IOMAP registers
used in MSMTITANIUM and also basic functionality needed for the
target MSMTITANIUM to boot up
Change-Id: I79323c52c10dd47e71707846cf53ba1e9aed03c8
diff --git a/platform/msmtitanium/gpio.c b/platform/msmtitanium/gpio.c
new file mode 100644
index 0000000..05b4977
--- /dev/null
+++ b/platform/msmtitanium/gpio.c
@@ -0,0 +1,72 @@
+/* Copyright (c) 2015, 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 <debug.h>
+#include <reg.h>
+#include <platform/iomap.h>
+#include <platform/gpio.h>
+#include <blsp_qup.h>
+
+void gpio_tlmm_config(uint32_t gpio, uint8_t func,
+ uint8_t dir, uint8_t pull,
+ uint8_t drvstr, uint32_t enable)
+{
+ uint32_t val = 0;
+
+ val |= pull;
+ val |= func << 2;
+ val |= drvstr << 6;
+ val |= enable << 9;
+
+ writel(val, (uint32_t *)GPIO_CONFIG_ADDR(gpio));
+ return;
+}
+
+void gpio_set_dir(uint32_t gpio, uint32_t dir)
+{
+ writel(dir, (uint32_t *)GPIO_IN_OUT_ADDR(gpio));
+
+ return;
+}
+
+uint32_t gpio_status(uint32_t gpio)
+{
+ return readl(GPIO_IN_OUT_ADDR(gpio)) & GPIO_IN;
+}
+
+/* Configure gpio for blsp uart 2 */
+void gpio_config_uart_dm(uint8_t id)
+{
+ /* configure rx gpio */
+ gpio_tlmm_config(5, 2, GPIO_INPUT, GPIO_NO_PULL,
+ GPIO_8MA, GPIO_DISABLE);
+
+ /* configure tx gpio */
+ gpio_tlmm_config(4, 2, GPIO_OUTPUT, GPIO_NO_PULL,
+ GPIO_8MA, GPIO_DISABLE);
+}