platform/target: Initial commit for thulium bringup
Add support for target and platform implementation for
thulium.
Change-Id: I4ca7191697ac5a7518dcfadaf812d793e5ce1d48
diff --git a/platform/thulium/acpuclock.c b/platform/thulium/acpuclock.c
new file mode 100644
index 0000000..3b76b91
--- /dev/null
+++ b/platform/thulium/acpuclock.c
@@ -0,0 +1,271 @@
+/* Copyright (c) 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 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 <stdint.h>
+#include <debug.h>
+#include <reg.h>
+#include <mmc.h>
+#include <clock.h>
+#include <platform/timer.h>
+#include <platform/clock.h>
+#include <platform/iomap.h>
+#include <pm8x41.h>
+
+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, true);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set sdc%u_iface_clk ret = %d\n", interface, ret);
+ ASSERT(0);
+ }
+}
+
+/* Configure MMC clock */
+void clock_config_mmc(uint32_t interface, uint32_t freq)
+{
+ int ret = 0;
+ 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, true);
+ }
+ else if(freq == MMC_CLK_50MHZ)
+ {
+ ret = clk_get_set_enable(clk_name, 50000000, true);
+ }
+ else if(freq == MMC_CLK_96MHZ)
+ {
+ ret = clk_get_set_enable(clk_name, 100000000, true);
+ }
+ else if(freq == MMC_CLK_192MHZ)
+ {
+ ret = clk_get_set_enable(clk_name, 192000000, true);
+ }
+ else
+ {
+ dprintf(CRITICAL, "sdc frequency (%u) is not supported\n", freq);
+ ASSERT(0);
+ }
+
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set sdc%u_core_clk ret = %d\n", interface, ret);
+ ASSERT(0);
+ }
+}
+
+/* Configure UART clock based on the UART block id*/
+void clock_config_uart_dm(uint8_t id)
+{
+ int ret;
+ char iclk[64];
+ char cclk[64];
+
+ snprintf(iclk, sizeof(iclk), "uart%u_iface_clk", id);
+ snprintf(cclk, sizeof(cclk), "uart%u_core_clk", id);
+
+ ret = clk_get_set_enable(iclk, 0, true);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set uart%u_iface_clk ret = %d\n", id, ret);
+ ASSERT(0);
+ }
+
+ ret = clk_get_set_enable(cclk, 7372800, true);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set uart%u_core_clk ret = %d\n", id, ret);
+ ASSERT(0);
+ }
+}
+
+/* Function to asynchronously reset CE (Crypto Engine).
+ * Function assumes that all the CE clocks are off.
+ */
+static void ce_async_reset(uint8_t instance)
+{
+}
+
+void clock_ce_enable(uint8_t instance)
+{
+}
+
+void clock_ce_disable(uint8_t instance)
+{
+}
+
+void clock_config_ce(uint8_t instance)
+{
+ /* Need to enable the clock before disabling since the clk_disable()
+ * has a check to default to nop when the clk_enable() is not called
+ * on that particular clock.
+ */
+ clock_ce_enable(instance);
+
+ clock_ce_disable(instance);
+
+ ce_async_reset(instance);
+
+ clock_ce_enable(instance);
+
+}
+
+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, true);
+ 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, true);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set usb30_master_clk. ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ ret = clk_get_set_enable("usb30_phy_aux_clk", 1200000, true);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set usb30_phy_aux_clk. ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ ret = clk_get_set_enable("usb30_mock_utmi_clk", 60000000, true);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set usb30_mock_utmi_clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ ret = clk_get_set_enable("usb30_sleep_clk", 0, true);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set usb30_sleep_clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ ret = clk_get_set_enable("usb_phy_cfg_ahb2phy_clk", 0, true);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to enable usb_phy_cfg_ahb2phy_clk = %d\n", ret);
+ ASSERT(0);
+ }
+
+ pm8x41_lnbb_clock_ctrl(1);
+}
+
+void clock_bumpup_pipe3_clk()
+{
+ int ret = 0;
+
+ ret = clk_get_set_enable("usb30_pipe_clk", 0, true);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set usb30_pipe_clk. ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ return;
+}
+
+void clock_reset_usb_phy()
+{
+ int ret;
+
+ struct clk *phy_reset_clk = NULL;
+ struct clk *pipe_reset_clk = NULL;
+
+ /* Look if phy com clock is present */
+ phy_reset_clk = clk_get("usb30_phy_reset");
+ ASSERT(phy_reset_clk);
+
+ pipe_reset_clk = clk_get("usb30_pipe_clk");
+ ASSERT(pipe_reset_clk);
+
+ /* ASSERT */
+ ret = clk_reset(phy_reset_clk, CLK_RESET_ASSERT);
+
+ if (ret)
+ {
+ dprintf(CRITICAL, "Failed to assert usb30_phy_reset clk\n");
+ return;
+ }
+
+ ret = clk_reset(pipe_reset_clk, CLK_RESET_ASSERT);
+ if (ret)
+ {
+ dprintf(CRITICAL, "Failed to assert usb30_pipe_clk\n");
+ goto deassert_phy_clk;
+ }
+
+ udelay(100);
+
+ /* DEASSERT */
+ ret = clk_reset(pipe_reset_clk, CLK_RESET_DEASSERT);
+ if (ret)
+ {
+ dprintf(CRITICAL, "Failed to deassert usb_pipe_clk\n");
+ return;
+ }
+
+deassert_phy_clk:
+
+ ret = clk_reset(phy_reset_clk, CLK_RESET_DEASSERT);
+ if (ret)
+ {
+ dprintf(CRITICAL, "Failed to deassert usb30_phy_com_reset clk\n");
+ return;
+ }
+}