From 361aaf8629d9f374c972bee3385e789bad6a95f7 Mon Sep 17 00:00:00 2001
From: CTCaer <ctcaer@gmail.com>
Date: Sat, 11 Feb 2023 23:25:22 +0200
Subject: [PATCH] l4t: disable AHB aperture and pllc war
We don't need AHB aperture after that point and new deinit fixes the pllc init issue on L4T boot.
---
bootloader/l4t/l4t.c | 14 +++-----------
1 file changed, 3 insertions(+), 11 deletions(-)
diff --git a/bootloader/l4t/l4t.c b/bootloader/l4t/l4t.c
index d217a42..7b9b4d2 100644
--- a/bootloader/l4t/l4t.c
+++ b/bootloader/l4t/l4t.c
@@ -719,9 +719,6 @@ static void _l4t_mc_config_carveout(bool t210b01)
static void _l4t_late_hw_config(bool t210b01)
{
- // Turn on PLLC to default OUT0 frequency to mitigate kernel broken init.
- clock_enable_pllc(53); // VCO/OUT0: 508.8 MHz. (VCO is half.)
-
// Reset System Counters.
for (u32 i = 0; i < SYSCTR0_COUNTERS; i += sizeof(u32))
SYSCTR0(SYSCTR0_COUNTERS_BASE + i) = 0;
@@ -1045,6 +1042,9 @@ void launch_l4t(const ini_sec_t *ini_sec, int entry_idx, int is_list, bool t210b
// Done loading bootloaders/firmware.
sd_end();
+ // We don't need AHB aperture open.
+ mc_disable_ahb_redirect();
+
// Enable debug port.
if (ctxt.serial_port)
{
@@ -1205,11 +1205,3 @@ void launch_l4t(const ini_sec_t *ini_sec, int entry_idx, int is_list, bool t210b
while (true)
bpmp_halt();
}
-
-// t210 t210b01 hoag/aula
-// pp1 b0000001 b0000001 b0000001 pcie_port1_lane_map
-// pp0 b0010000 b0001000 b0000000 -- pcie_port0_lane_map
-// pci b0011111 b0001101 b0001101 - pcie_lane_map
-// usb b1100000 b0110010 b0110010 - usb_lane_map
-// rpd b0000011 b0000011 b0000011 root_port_mask_dev
-// rpp b0000010 b0000010 b0000010 root_port_mask_prod