1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (C) 2016-2018 Intel Corporation <www.intel.com>
4  *
5  */
6 
7 #include <common.h>
8 #include <errno.h>
9 #include <asm/io.h>
10 #include <asm/arch/handoff_s10.h>
11 
sysmgr_pinmux_handoff_read(void * handoff_address,const u32 ** table,unsigned int * table_len)12 static void sysmgr_pinmux_handoff_read(void *handoff_address,
13 				       const u32 **table,
14 				       unsigned int *table_len)
15 {
16 	unsigned int handoff_entry = (swab32(readl(handoff_address +
17 					S10_HANDOFF_OFFSET_LENGTH)) -
18 					S10_HANDOFF_OFFSET_DATA) /
19 					sizeof(unsigned int);
20 	unsigned int handoff_chunk[handoff_entry], temp, i;
21 
22 	if (swab32(readl(S10_HANDOFF_MUX)) == S10_HANDOFF_MAGIC_MUX) {
23 		/* using handoff from Quartus tools if exists */
24 		for (i = 0; i < handoff_entry; i++) {
25 			temp = readl(handoff_address +
26 				     S10_HANDOFF_OFFSET_DATA + (i * 4));
27 			handoff_chunk[i] = swab32(temp);
28 		}
29 		*table = handoff_chunk;
30 		*table_len = ARRAY_SIZE(handoff_chunk);
31 	}
32 }
33 
sysmgr_pinmux_table_sel(const u32 ** table,unsigned int * table_len)34 void sysmgr_pinmux_table_sel(const u32 **table, unsigned int *table_len)
35 {
36 	sysmgr_pinmux_handoff_read((void *)S10_HANDOFF_MUX, table,
37 				   table_len);
38 }
39 
sysmgr_pinmux_table_ctrl(const u32 ** table,unsigned int * table_len)40 void sysmgr_pinmux_table_ctrl(const u32 **table, unsigned int *table_len)
41 {
42 	sysmgr_pinmux_handoff_read((void *)S10_HANDOFF_IOCTL, table,
43 				   table_len);
44 }
45 
sysmgr_pinmux_table_fpga(const u32 ** table,unsigned int * table_len)46 void sysmgr_pinmux_table_fpga(const u32 **table, unsigned int *table_len)
47 {
48 	sysmgr_pinmux_handoff_read((void *)S10_HANDOFF_FPGA, table,
49 				   table_len);
50 }
51 
sysmgr_pinmux_table_delay(const u32 ** table,unsigned int * table_len)52 void sysmgr_pinmux_table_delay(const u32 **table, unsigned int *table_len)
53 {
54 	sysmgr_pinmux_handoff_read((void *)S10_HANODFF_DELAY, table,
55 				   table_len);
56 }
57