[Nyx] Introducing hekate GUI, named Nyx!

Version 0.8.0.

Expect dragons!

nyx/nyx_gui/soc/hw_init.c

@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2018-2019 CTCaer
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <string.h>
+
+#include "hw_init.h"
+#include "bpmp.h"
+#include "clock.h"
+#include "gpio.h"
+#include "pmc.h"
+#include "t210.h"
+#include "../mem/minerva.h"
+#include "../gfx/di.h"
+#include "../input/touch.h"
+#include "../storage/sdmmc.h"
+#include "../utils/util.h"
+
+extern sdmmc_t sd_sdmmc;
+
+
+void reconfig_hw_workaround(bool extra_reconfig, u32 magic)
+{
+	// Flush and disable MMU.
+	bpmp_mmu_disable();
+	bpmp_clk_rate_set(BPMP_CLK_NORMAL);
+	minerva_change_freq(FREQ_204);
+
+	touch_power_off();
+
+	// Re-enable clocks to Audio Processing Engine as a workaround to hanging.
+	CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_V) |= (1 << 10); // Enable AHUB clock.
+	CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_Y) |= (1 <<  6);  // Enable APE clock.
+
+	if (extra_reconfig)
+	{
+		msleep(10);
+		PMC(APBDEV_PMC_PWR_DET_VAL) |= PMC_PWR_DET_SDMMC1_IO_EN;
+
+		clock_disable_cl_dvfs();
+
+		// Disable Joy-con GPIOs.
+		gpio_config(GPIO_PORT_G, GPIO_PIN_0, GPIO_MODE_SPIO);
+		gpio_config(GPIO_PORT_D, GPIO_PIN_1, GPIO_MODE_SPIO);
+		gpio_config(GPIO_PORT_E, GPIO_PIN_6, GPIO_MODE_SPIO);
+		gpio_config(GPIO_PORT_H, GPIO_PIN_6, GPIO_MODE_SPIO);
+	}
+
+	// Power off display.
+	display_end();
+
+	// Enable clock to USBD and init SDMMC1 to avoid hangs with bad hw inits.
+	if (magic == 0xBAADF00D)
+	{
+		CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_L) |= (1 << 22);
+		sdmmc_init(&sd_sdmmc, SDMMC_1, SDMMC_POWER_3_3, SDMMC_BUS_WIDTH_1, 5, 0);
+		clock_disable_cl_dvfs();
+
+		msleep(200);
+	}
+}