zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/boot/common/src/uboot/arch/arm/lib/cache-pl310.c b/boot/common/src/uboot/arch/arm/lib/cache-pl310.c
new file mode 100644
index 0000000..8337cc3
--- /dev/null
+++ b/boot/common/src/uboot/arch/arm/lib/cache-pl310.c
@@ -0,0 +1,147 @@
+/*
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ * Aneesh V <aneesh@ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 <linux/types.h>
+#include <asm/io.h>
+#include <asm/armv7.h>
+#include <asm/pl310.h>
+#include <config.h>
+#include <common.h>
+
+struct pl310_regs *const pl310 = (struct pl310_regs *)CONFIG_SYS_PL310_BASE;
+
+#if 0
+static void pl310_cache_sync(void)
+{
+ writel(0, &pl310->pl310_cache_sync);
+}
+
+static void pl310_background_op_all_ways(u32 *op_reg)
+{
+ u32 assoc_16, associativity, way_mask;
+
+ assoc_16 = readl(&pl310->pl310_aux_ctrl) &
+ PL310_AUX_CTRL_ASSOCIATIVITY_MASK;
+ if (assoc_16)
+ associativity = 16;
+ else
+ associativity = 8;
+
+ way_mask = (1 << associativity) - 1;
+ /* Invalidate all ways */
+ writel(way_mask, op_reg);
+ /* Wait for all ways to be invalidated */
+ while (readl(op_reg) && way_mask)
+ ;
+ pl310_cache_sync();
+}
+
+void v7_outer_cache_inval_all(void)
+{
+ pl310_background_op_all_ways(&pl310->pl310_inv_way);
+}
+
+void v7_outer_cache_flush_all(void)
+{
+ pl310_background_op_all_ways(&pl310->pl310_clean_inv_way);
+}
+
+/* Flush(clean invalidate) memory from start to stop-1 */
+void v7_outer_cache_flush_range(u32 start, u32 stop)
+{
+ /* PL310 currently supports only 32 bytes cache line */
+ u32 pa, line_size = 32;
+
+ /*
+ * Align to the beginning of cache-line - this ensures that
+ * the first 5 bits are 0 as required by PL310 TRM
+ */
+ start &= ~(line_size - 1);
+
+ for (pa = start; pa < stop; pa = pa + line_size)
+ writel(pa, &pl310->pl310_clean_inv_line_pa);
+
+ pl310_cache_sync();
+}
+
+/* invalidate memory from start to stop-1 */
+void v7_outer_cache_inval_range(u32 start, u32 stop)
+{
+ /* PL310 currently supports only 32 bytes cache line */
+ u32 pa, line_size = 32;
+
+ /*
+ * If start address is not aligned to cache-line do not
+ * invalidate the first cache-line
+ */
+ if (start & (line_size - 1)) {
+ printf("ERROR: %s - start address is not aligned - 0x%08x\n",
+ __func__, start);
+ /* move to next cache line */
+ start = (start + line_size - 1) & ~(line_size - 1);
+ }
+
+ /*
+ * If stop address is not aligned to cache-line do not
+ * invalidate the last cache-line
+ */
+ if (stop & (line_size - 1)) {
+ printf("ERROR: %s - stop address is not aligned - 0x%08x\n",
+ __func__, stop);
+ /* align to the beginning of this cache line */
+ stop &= ~(line_size - 1);
+ }
+
+ for (pa = start; pa < stop; pa = pa + line_size)
+ writel(pa, &pl310->pl310_inv_line_pa);
+
+ pl310_cache_sync();
+}
+#else
+static void pl310_cache_sync(void)
+{
+}
+
+static void pl310_background_op_all_ways(u32 *op_reg)
+{
+}
+
+void v7_outer_cache_inval_all(void)
+{
+}
+
+void v7_outer_cache_flush_all(void)
+{
+}
+
+/* Flush(clean invalidate) memory from start to stop-1 */
+void v7_outer_cache_flush_range(u32 start, u32 stop)
+{
+}
+
+/* invalidate memory from start to stop-1 */
+void v7_outer_cache_inval_range(u32 start, u32 stop)
+{
+}
+#endif
+