arch/arm/mach-socfpga/wrap_pinmux_config_s10.c

   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
  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
  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
  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
  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
  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 }