msmzirc: platform: add initial support for msmzirc
Add platform files for msmzirc bring up.
Change-Id: Iad6098f2908721502d310f362088ee1dce791b8f
diff --git a/platform/msmzirc/gpio.c b/platform/msmzirc/gpio.c
new file mode 100644
index 0000000..98ff2e4
--- /dev/null
+++ b/platform/msmzirc/gpio.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2013-2014, 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 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 BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 <reg.h>
+#include <debug.h>
+#include <platform/iomap.h>
+#include <platform/gpio.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, GPIO_CONFIG_ADDR(gpio));
+
+ return;
+}
+
+void gpio_set(uint32_t gpio, uint32_t dir)
+{
+ writel(dir, GPIO_IN_OUT_ADDR(gpio));
+
+ return;
+}
+
+uint32_t gpio_get_state(uint32_t gpio)
+{
+ return readl(GPIO_IN_OUT_ADDR(gpio));
+}
+
+void gpio_config_uart_dm(uint8_t id)
+{
+ if (id == 2)
+ {
+ /* configure rx gpio. */
+ gpio_tlmm_config(9, 1, GPIO_INPUT, GPIO_NO_PULL, GPIO_8MA, GPIO_DISABLE);
+
+ /* configure tx gpio. */
+ gpio_tlmm_config(8, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA, GPIO_DISABLE);
+ }
+ else
+ {
+ dprintf(CRITICAL, "GPIO config for UART id = %d not supported.\n", id);
+ ASSERT(0);
+ }
+}