From 50a212ec906f7524620675f0c57357691c26c81f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 16 Oct 2024 01:20:19 +0000
Subject: [PATCH] 修改GPIO导出默认初始值
---
kernel/arch/arm/boot/dts/am3517.dtsi | 93 ++++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 89 insertions(+), 4 deletions(-)
diff --git a/kernel/arch/arm/boot/dts/am3517.dtsi b/kernel/arch/arm/boot/dts/am3517.dtsi
index 23ea381..de33c4f 100644
--- a/kernel/arch/arm/boot/dts/am3517.dtsi
+++ b/kernel/arch/arm/boot/dts/am3517.dtsi
@@ -1,7 +1,7 @@
/*
* Device Tree Source for am3517 SoC
*
- * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com/
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
@@ -10,10 +10,45 @@
#include "omap3.dtsi"
+/* AM3517 doesn't appear to have the crypto engines defined in omap3.dtsi */
+/delete-node/ &aes1_target;
+/delete-node/ &aes2_target;
+
/ {
aliases {
serial3 = &uart4;
can = &hecc;
+ };
+
+ cpus {
+ cpu: cpu@0 {
+ /* Based on OMAP3630 variants OPP50 and OPP100 */
+ operating-points-v2 = <&cpu0_opp_table>;
+
+ clock-latency = <300000>; /* From legacy driver */
+ };
+ };
+
+ cpu0_opp_table: opp-table {
+ compatible = "operating-points-v2-ti-cpu";
+ syscon = <&scm_conf>;
+ /*
+ * AM3517 TRM only lists 600MHz @ 1.2V, but omap36xx
+ * appear to operate at 300MHz as well. Since AM3517 only
+ * lists one operating voltage, it will remain fixed at 1.2V
+ */
+ opp50-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ opp-microvolt = <1200000>;
+ opp-supported-hw = <0xffffffff 0xffffffff>;
+ opp-suspend;
+ };
+
+ opp100-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <1200000>;
+ opp-supported-hw = <0xffffffff 0xffffffff>;
+ };
};
ocp@68000000 {
@@ -43,7 +78,7 @@
clock-names = "ick";
};
- davinci_mdio: ethernet@5c030000 {
+ davinci_mdio: mdio@5c030000 {
compatible = "ti,davinci_mdio";
ti,hwmods = "davinci_mdio";
status = "disabled";
@@ -88,7 +123,37 @@
interrupts = <24>;
clocks = <&hecc_ck>;
};
+
+ /*
+ * On am3517 the OCP registers do not seem to be accessible
+ * similar to the omap34xx. Maybe SGX is permanently set to
+ * "OCP bypass mode", or maybe there is OCP_SYSCONFIG that is
+ * write-only at 0x50000e10. We detect SGX based on the SGX
+ * revision register instead of the unreadable OCP revision
+ * register.
+ */
+ sgx_module: target-module@50000000 {
+ compatible = "ti,sysc-omap2", "ti,sysc";
+ reg = <0x50000014 0x4>;
+ reg-names = "rev";
+ clocks = <&sgx_fck>, <&sgx_ick>;
+ clock-names = "fck", "ick";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x50000000 0x4000>;
+
+ /*
+ * Closed source PowerVR driver, no child device
+ * binding or driver in mainline
+ */
+ };
};
+};
+
+/* Not currently working, probably needs at least different clocks */
+&rng_target {
+ status = "disabled";
+ /delete-property/ clocks;
};
/* Table Table 5-79 of the TRM shows 480ab000 is reserved */
@@ -108,5 +173,25 @@
status = "disabled";
};
-/include/ "am35xx-clocks.dtsi"
-/include/ "omap36xx-am35xx-omap3430es2plus-clocks.dtsi"
+#include "am35xx-clocks.dtsi"
+#include "omap36xx-am35xx-omap3430es2plus-clocks.dtsi"
+
+/* Preferred always-on timer for clocksource */
+&timer1_target {
+ ti,no-reset-on-init;
+ ti,no-idle;
+ timer@0 {
+ assigned-clocks = <&gpt1_fck>;
+ assigned-clock-parents = <&sys_ck>;
+ };
+};
+
+/* Preferred timer for clockevent */
+&timer2_target {
+ ti,no-reset-on-init;
+ ti,no-idle;
+ timer@0 {
+ assigned-clocks = <&gpt2_fck>;
+ assigned-clock-parents = <&sys_ck>;
+ };
+};
--
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