lkml.org 
[lkml]   [2021]   [Dec]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] arm: mach-k3: am642_init: Unlock MCU PADCFG regs
Date
From: Michael Liebert <liebert@ibv-augsburg.de>

Currently only the PADCFG registers of the main domain are unlocked.
Also unlock PADCFG registers of MCU domain, so MCU pin muxing can be configured by u-boot or Linux.

Signed-off-by: Michael Liebert <liebert@ibv-augsburg.de>
Tested-by: Christian Gmeiner <christian.gmeiner@gmail.com>
---
arch/arm/mach-k3/am642_init.c | 3 +++
arch/arm/mach-k3/include/mach/am64_hardware.h | 2 ++
2 files changed, 5 insertions(+)

diff --git a/arch/arm/mach-k3/am642_init.c b/arch/arm/mach-k3/am642_init.c
index 533905daeb..958fa05af4 100644
--- a/arch/arm/mach-k3/am642_init.c
+++ b/arch/arm/mach-k3/am642_init.c
@@ -37,6 +37,9 @@ static void ctrl_mmr_unlock(void)
mmr_unlock(CTRL_MMR0_BASE, 3);
mmr_unlock(CTRL_MMR0_BASE, 5);
mmr_unlock(CTRL_MMR0_BASE, 6);
+
+ /* Unlock all MCU_PADCFG_MMR1 module registers */
+ mmr_unlock(MCU_PADCFG_MMR1_BASE, 1);
}

/*
diff --git a/arch/arm/mach-k3/include/mach/am64_hardware.h b/arch/arm/mach-k3/include/mach/am64_hardware.h
index 96383437d5..e06e1f9532 100644
--- a/arch/arm/mach-k3/include/mach/am64_hardware.h
+++ b/arch/arm/mach-k3/include/mach/am64_hardware.h
@@ -12,6 +12,8 @@

#define PADCFG_MMR1_BASE 0xf0000

+#define MCU_PADCFG_MMR1_BASE 0x04080000
+
#define MAIN_DEVSTAT_PRIMARY_BOOTMODE_MASK 0x00000078
#define MAIN_DEVSTAT_PRIMARY_BOOTMODE_SHIFT 3

--
2.33.1
\
 
 \ /
  Last update: 2021-12-15 16:11    [W:0.024 / U:0.044 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site