Add BSP support for F1C100s

2021-12-04 18:02:07 +08:00
parent dff54d854d
commit 68ca62dfd7
33 changed files with 5043 additions and 2 deletions
@@ -0,0 +1,83 @@
+/*
+ * sys-uart.c
+ *
+ * Copyright(c) 2007-2018 Jianjun Jiang <8192542@qq.com>
+ * Official site: http://xboot.org
+ * Mobile phone: +86-18665388956
+ * QQ: 8192542
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <types.h>
+#include <stdint.h>
+#include <io.h>
+
+void sys_uart_init(void)
+{
+	virtual_addr_t addr;
+	uint32_t val;
+
+	/* Config GPIOE1 and GPIOE0 to txd0 and rxd0 */
+	addr = 0x01c20890 + 0x00;
+	val = read32(addr);
+	val &= ~(0xf << ((1 & 0x7) << 2));
+	val |= ((0x5 & 0x7) << ((1 & 0x7) << 2));
+	write32(addr, val);
+
+	val = read32(addr);
+	val &= ~(0xf << ((0 & 0x7) << 2));
+	val |= ((0x5 & 0x7) << ((0 & 0x7) << 2));
+	write32(addr, val);
+
+	/* Open the clock gate for uart0 */
+	addr = 0x01c20068;
+	val = read32(addr);
+	val |= 1 << 20;
+	write32(addr, val);
+
+	/* Deassert uart0 reset */
+	addr = 0x01c202d0;
+	val = read32(addr);
+	val |= 1 << 20;
+	write32(addr, val);
+
+	/* Config uart0 to 115200-8-1-0 */
+	addr = 0x01c25000;
+	write32(addr + 0x04, 0x0);
+	write32(addr + 0x08, 0xf7);
+	write32(addr + 0x10, 0x0);
+	val = read32(addr + 0x0c);
+	val |= (1 << 7);
+	write32(addr + 0x0c, val);
+	write32(addr + 0x00, 0x36 & 0xff);
+	write32(addr + 0x04, (0x36 >> 8) & 0xff);
+	val = read32(addr + 0x0c);
+	val &= ~(1 << 7);
+	write32(addr + 0x0c, val);
+	val = read32(addr + 0x0c);
+	val &= ~0x1f;
+	val |= (0x3 << 0) | (0 << 2) | (0x0 << 3);
+	write32(addr + 0x0c, val);
+}
+
+void sys_uart_putc(char c)
+{
+	virtual_addr_t addr = 0x01c25000;
+
+	while((read32(addr + 0x7c) & (0x1 << 1)) == 0);
+	write32(addr + 0x00, c);
+}