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 +1,57 @@
+/*
+ * sys-mmu.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 <stdint.h>
+#include <io.h>
+#include <sizes.h>
+#include <arm32.h>
+
+static void map_l1_section(uint32_t * ttb, virtual_addr_t virt, physical_addr_t phys, physical_size_t size, int type)
+{
+	physical_size_t i;
+
+	virt >>= 20;
+	phys >>= 20;
+	size >>= 20;
+	type &= 0x3;
+
+	for(i = size; i > 0; i--, virt++, phys++)
+		ttb[virt] = (phys << 20) | (0x3 << 10) | (0x0 << 5) | (type << 2) | (0x2 << 0);
+}
+
+void sys_mmu_init(void)
+{
+	uint32_t * ttb = (uint32_t *)(0x80000000 + SZ_1M * 31);
+
+	map_l1_section(ttb, 0x00000000, 0x00000000, SZ_2G, 0);
+	map_l1_section(ttb, 0x80000000, 0x80000000, SZ_2G, 0);
+	map_l1_section(ttb, 0x80000000, 0x80000000, SZ_1M * 32, 3);
+
+	arm32_ttb_set((uint32_t)(ttb));
+	arm32_tlb_invalidate();
+	arm32_domain_set(0x3);
+	arm32_mmu_enable();
+	arm32_icache_enable();
+	arm32_dcache_enable();
+}