temp/u-boot-pinephone: expose ram_freq in device tree (MR 1998)

Query the ram clock:
cat /proc/device-tree/memory/ram_freq

device/main/device-pine64-pinephone/uboot-script.cmd

@@ -28,6 +28,11 @@ echo Resizing FDT
 fdt addr ${fdt_addr_r}
 fdt resize
 
+echo Adding FTD RAM clock
+fdt mknode / memory
+fdt set /memory ram_freq ${ram_freq}
+fdt list /memory
+
 echo Booting kernel
 gpio set 116
 gpio clear 98

temp/u-boot-pinephone/0001-expose-DRAM-clock-speed.patch

@@ -0,0 +1,52 @@
+From b94ee51a5d818e55b3288d2fa3cbc27837981307 Mon Sep 17 00:00:00 2001
+From: Bobby The Builder <bob@najdan.com>
+Date: Mon, 29 Mar 2021 16:42:07 -0400
+Subject: [PATCH] expose DRAM clock speed
+
+---
+ common/board_f.c | 6 ++++--
+ common/main.c    | 7 +++++++
+ 2 files changed, 11 insertions(+), 2 deletions(-)
+
+diff --git a/common/board_f.c b/common/board_f.c
+index 9f441c44f1..8e005337e6 100644
+--- a/common/board_f.c
++++ b/common/board_f.c
+@@ -226,12 +226,14 @@ static int show_dram_config(void)
+ 		print_size(gd->bd->bi_dram[i].size, "\n");
+ #endif
+ 	}
+-	debug("\nDRAM:  ");
++	debug("\nDRAM Size:  ");
+ 
+ 	print_size(size, "");
+ 	board_add_ram_info(0);
+ 	putc('\n');
+-
++#if defined(CONFIG_DRAM_CLK)
++	printf("DRAM Clock: %d MHz\n", CONFIG_DRAM_CLK);
++#endif
+ 	return 0;
+ }
+ 
+diff --git a/common/main.c b/common/main.c
+index 4b3cd302c3..1dbb44060d 100644
+--- a/common/main.c
++++ b/common/main.c
+@@ -45,6 +45,13 @@ void main_loop(void)
+ 	if (IS_ENABLED(CONFIG_VERSION_VARIABLE))
+ 		env_set("ver", version_string);  /* set version variable */
+ 
++#if defined(CONFIG_DRAM_CLK)
++	char ram_clk_string[11];
++	sprintf(ram_clk_string, "%d", CONFIG_DRAM_CLK);
++	int ret = env_set("ram_freq", ram_clk_string);
++	printf("Set ram_freq : %s\n", ram_clk_string);
++#endif
++
+ 	cli_init();
+ 
+ 	if (IS_ENABLED(CONFIG_USE_PREBOOT))
+-- 
+2.30.2
+

temp/u-boot-pinephone/APKBUILD

@@ -13,6 +13,7 @@ license="GPL-2.0-or-later OFL-1.1 BSD-2-Clause BSD-3-Clause eCos-2.0 IBM-pibs
 makedepends="$depends_dev bc dtc python3-dev py3-setuptools swig bison flex openssl-dev arm-trusted-firmware-sun50i crust"
 options="!check"
 source="https://gitlab.com/pine64-org/u-boot/-/archive/$_commit/u-boot-$_commit.tar.gz
+	0001-expose-DRAM-clock-speed.patch
 	update-u-boot
 	"
 builddir="$srcdir/u-boot-$_commit"
@@ -46,4 +47,5 @@ package() {
 }
 
 sha512sums="73b132cdc26113a83d060f0d243320ca989b4efa98fe95a2205526a42f615ced7046bb9d4878c67a9a550b04c2519d90be3c2272be97c878d759bf5d027cf536  u-boot-7492749fec31b1086bc8933bf113a766aea021aa.tar.gz
+3cba8a0e899be8cb0b9260b7a86d4115f74c279a1bac8c1403ee669adf91dca8215d8d2d6395ebb3cd67ce000f37a51d6e033b62a8d616b346a9072fa58a4b70  0001-expose-DRAM-clock-speed.patch
 f45b86839992472f2264d3651b28ef7ebe84c77c00fb557db1b381e48350f9687eac1555be8f0c6b1dc5a62299f06010208c73daa9422d58c344ba6bb8c7e22a  update-u-boot"