msmzirc: platform: add initial support for msmzirc
Add platform files for msmzirc bring up.
Change-Id: Iad6098f2908721502d310f362088ee1dce791b8f
diff --git a/platform/msmzirc/acpuclock.c b/platform/msmzirc/acpuclock.c
new file mode 100644
index 0000000..950049b
--- /dev/null
+++ b/platform/msmzirc/acpuclock.c
@@ -0,0 +1,181 @@
+/*
+ * 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 <err.h>
+#include <assert.h>
+#include <debug.h>
+#include <reg.h>
+#include <clock.h>
+#include <mmc.h>
+#include <platform/clock.h>
+#include <platform/iomap.h>
+#include <platform/timer.h>
+
+void clock_config_uart_dm(uint8_t id)
+{
+ int ret;
+ char clk_name[64];
+
+ snprintf(clk_name, sizeof(clk_name), "uart%u_iface_clk", id);
+ ret = clk_get_set_enable(clk_name, 0, 1);
+ if (ret)
+ {
+ dprintf(CRITICAL, "failed to set %s ret = %d\n", clk_name, ret);
+ ASSERT(0);
+ }
+
+ snprintf(clk_name, sizeof(clk_name), "uart%u_core_clk", id);
+ ret = clk_get_set_enable(clk_name, 7372800, 1);
+ if (ret)
+ {
+ dprintf(CRITICAL, "failed to set %s ret = %d\n", clk_name, ret);
+ ASSERT(0);
+ }
+}
+
+/*
+ * Disable power collapse using GDSCR:
+ * Globally Distributed Switch Controller Register
+ */
+void clock_usb30_gdsc_enable(void)
+{
+ uint32_t reg = readl(GCC_USB30_GDSCR);
+
+ reg &= ~(0x1);
+
+ writel(reg, GCC_USB30_GDSCR);
+}
+
+/* enables usb30 clocks */
+void clock_usb30_init(void)
+{
+ int ret;
+
+ ret = clk_get_set_enable("usb30_iface_clk", 0, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set usb30_iface_clk. ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ clock_usb30_gdsc_enable();
+
+ ret = clk_get_set_enable("usb30_master_clk", 125000000, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set usb30_master_clk. ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ ret = clk_get_set_enable("usb30_pipe_clk", 19200000, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set usb30_pipe_clk. ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ ret = clk_get_set_enable("usb30_aux_clk", 1000000, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set usb30_aux_clk. ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ ret = clk_get_set_enable("usb_phy_cfg_ahb_clk", 0, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set usb_phy_cfg_ahb_clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+}
+
+void clock_init_mmc(uint32_t interface)
+{
+ char clk_name[64];
+ int ret;
+
+ snprintf(clk_name, sizeof(clk_name), "sdc%u_iface_clk", interface);
+
+ /* enable interface clock */
+ ret = clk_get_set_enable(clk_name, 0, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set sdc1_iface_clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+}
+
+/* Configure MMC clock */
+void clock_config_mmc(uint32_t interface, uint32_t freq)
+{
+ int ret;
+ uint32_t reg;
+ char clk_name[64];
+
+ snprintf(clk_name, sizeof(clk_name), "sdc%u_core_clk", interface);
+
+ if(freq == MMC_CLK_400KHZ)
+ {
+ ret = clk_get_set_enable(clk_name, 400000, 1);
+ }
+ else if(freq == MMC_CLK_50MHZ)
+ {
+ ret = clk_get_set_enable(clk_name, 50000000, 1);
+ }
+ else if(freq == MMC_CLK_200MHZ)
+ {
+ ret = clk_get_set_enable(clk_name, 200000000, 1);
+ }
+ else if(freq == MMC_CLK_177MHZ)
+ {
+ ret = clk_get_set_enable(clk_name, 177770000, 1);
+ }
+ else
+ {
+ dprintf(CRITICAL, "sdc frequency (%u) is not supported\n", freq);
+ ASSERT(0);
+ }
+
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set %s ret = %d\n", clk_name, ret);
+ ASSERT(0);
+ }
+}
+
+void clock_bumpup_pipe3_clk()
+{
+ int ret = 0;
+
+ ret = clk_get_set_enable("usb30_pipe_clk", 125000000, 0);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set usb30_pipe_clk. ret = %d\n", ret);
+ ASSERT(0);
+ }
+}