[src/trunk]: src/sys/arch/arm/nvidia Initialize PLLE

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/161d2ecfe63d
branches:  trunk
changeset: 826677:161d2ecfe63d
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Fri Sep 22 01:24:05 2017 +0000

description:
Initialize PLLE

diffstat:

 sys/arch/arm/nvidia/tegra210_car.c |  31 ++++++++++++++++++++++++++++---
 1 files changed, 28 insertions(+), 3 deletions(-)

diffs (59 lines):

diff -r 4b0e35c6ad78 -r 161d2ecfe63d sys/arch/arm/nvidia/tegra210_car.c
--- a/sys/arch/arm/nvidia/tegra210_car.c        Thu Sep 21 23:44:48 2017 +0000
+++ b/sys/arch/arm/nvidia/tegra210_car.c        Fri Sep 22 01:24:05 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: tegra210_car.c,v 1.4 2017/09/21 23:44:26 jmcneill Exp $ */
+/* $NetBSD: tegra210_car.c,v 1.5 2017/09/22 01:24:05 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2015-2017 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tegra210_car.c,v 1.4 2017/09/21 23:44:26 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tegra210_car.c,v 1.5 2017/09/22 01:24:05 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -769,7 +769,7 @@
        uint32_t val;
 
        /*
-        * Set up the PLLU (enable in software).
+        * Set up the PLLU.
         */
        tegra_reg_set_clear(bst, bsh, CAR_PLLU_BASE_REG, CAR_PLLU_BASE_OVERRIDE, 0);
        tegra_reg_set_clear(bst, bsh, CAR_PLLU_MISC_REG, CAR_PLLU_MISC_IDDQ, 0);
@@ -789,6 +789,31 @@
        tegra_reg_set_clear(bst, bsh, CAR_PLLU_OUTA_REG, CAR_PLLU_OUTA_OUT2_RSTN, 0);
        delay(2);
 
+       /*
+        * Set up the PLLE.
+        */
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_AUX_REG, 0, CAR_PLLE_AUX_REF_SEL_PLLREFE);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_AUX_REG, 0, CAR_PLLE_AUX_REF_SRC);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_MISC_REG, 0, CAR_PLLE_MISC_IDDQ_OVERRIDE);
+       delay(5);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_MISC_REG, CAR_PLLE_MISC_PTS, 0);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_BASE_REG, CAR_PLLE_BASE_ENABLE, 0);
+       do {
+               delay(2);
+               val = bus_space_read_4(bst, bsh, CAR_PLLE_MISC_REG);
+       } while ((val & CAR_PLLE_MISC_LOCK) == 0);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_SS_CNTL_REG, 0, CAR_PLLE_SS_CNTL_BYPASS_SS);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_SS_CNTL_REG, 0, CAR_PLLE_SS_CNTL_SSCBYP);
+       delay(1);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_SS_CNTL_REG, 0, CAR_PLLE_SS_CNTL_INTERP_RESET);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_MISC_REG, 0, CAR_PLLE_MISC_IDDQ_SWCTL);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_AUX_REG, 0, CAR_PLLE_AUX_SS_SWCTL);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_AUX_REG, 0, CAR_PLLE_AUX_ENABLE_SWCTL);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_AUX_REG, CAR_PLLE_AUX_SS_SEQ_INCLUDE, 0);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_AUX_REG, CAR_PLLE_AUX_USE_LOCKDET, 0);
+       delay(1);
+       tegra_reg_set_clear(bst, bsh, CAR_PLLE_AUX_REG, CAR_PLLE_AUX_SEQ_ENABLE, 0);
+
        bus_space_write_4(bst, bsh, CAR_CLK_ENB_W_SET_REG, CAR_DEV_W_XUSB);
 
        tegra_reg_set_clear(bst, bsh, CAR_PLLREFE_MISC_REG,