src/soc/nvidia/tegra/apbmisc.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/mmio.h>
   4 #include <soc/addressmap.h>
   5
   6 #include "apbmisc.h"
   7
   8 static struct apbmisc *misc = (struct apbmisc *)TEGRA_APB_MISC_BASE;
   9
  10 void enable_jtag(void)
  11 {
  12         write32(&misc->pp_config_ctl, PP_CONFIG_CTL_JTAG);
  13 }
  14
  15 void clamp_tristate_inputs(void)
  16 {
  17         write32(&misc->pp_pinmux_global, PP_PINMUX_CLAMP_INPUTS);
  18 }
  19
  20 void tegra_revision_info(struct tegra_revision *id)
  21 {
  22         uintptr_t gp_hidrev= (uintptr_t)TEGRA_APB_MISC_BASE + MISC_GP_HIDREV;
  23         uint32_t reg;
  24
  25         reg = read32((void *)(gp_hidrev));
  26
  27         id->hid_fam = (reg >> 0) & 0x0f;
  28         id->chip_id = (reg >> 8) & 0xff;
  29         id->major = (reg >> 4) & 0x0f;
  30         id->minor = (reg >> 16) & 0x07;
  31 }