MIPS: Netlogic: Add XLP platform files for XLP SoC
- Update common files to support XLP.
- Add arch/mips/include/asm/netlogic/xlp-hal for register definitions
and access macros
- Add arch/mips/netlogic/xlp/ for XLP specific files.
Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2967/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/netlogic/xlp/nlm_hal.c b/arch/mips/netlogic/xlp/nlm_hal.c
new file mode 100644
index 0000000..885f687
--- /dev/null
+++ b/arch/mips/netlogic/xlp/nlm_hal.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
+ * reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the NetLogic
+ * license below:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC 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 <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/delay.h>
+
+#include <asm/mipsregs.h>
+#include <asm/time.h>
+
+#include <asm/netlogic/haldefs.h>
+#include <asm/netlogic/xlp-hal/iomap.h>
+#include <asm/netlogic/xlp-hal/xlp.h>
+#include <asm/netlogic/xlp-hal/pic.h>
+#include <asm/netlogic/xlp-hal/sys.h>
+
+/* These addresses are computed by the nlm_hal_init() */
+uint64_t nlm_io_base;
+uint64_t nlm_sys_base;
+uint64_t nlm_pic_base;
+
+/* Main initialization */
+void nlm_hal_init(void)
+{
+ nlm_io_base = CKSEG1ADDR(XLP_DEFAULT_IO_BASE);
+ nlm_sys_base = nlm_get_sys_regbase(0); /* node 0 */
+ nlm_pic_base = nlm_get_pic_regbase(0); /* node 0 */
+}
+
+int nlm_irq_to_irt(int irq)
+{
+ if (!PIC_IRQ_IS_IRT(irq))
+ return -1;
+
+ switch (irq) {
+ case PIC_UART_0_IRQ:
+ return PIC_IRT_UART_0_INDEX;
+ case PIC_UART_1_IRQ:
+ return PIC_IRT_UART_1_INDEX;
+ default:
+ return -1;
+ }
+}
+
+int nlm_irt_to_irq(int irt)
+{
+ switch (irt) {
+ case PIC_IRT_UART_0_INDEX:
+ return PIC_UART_0_IRQ;
+ case PIC_IRT_UART_1_INDEX:
+ return PIC_UART_1_IRQ;
+ default:
+ return -1;
+ }
+}
+
+unsigned int nlm_get_cpu_frequency(void)
+{
+ unsigned int pll_divf, pll_divr, dfs_div, denom;
+ unsigned int val;
+ uint64_t num;
+
+ val = nlm_read_sys_reg(nlm_sys_base, SYS_POWER_ON_RESET_CFG);
+ pll_divf = (val >> 10) & 0x7f;
+ pll_divr = (val >> 8) & 0x3;
+ dfs_div = (val >> 17) & 0x3;
+
+ num = pll_divf + 1;
+ denom = 3 * (pll_divr + 1) * (1 << (dfs_div + 1));
+ num = num * 800000000ULL;
+ do_div(num, denom);
+ return (unsigned int)num;
+}