BananaPi BPI-F3: Update to linux-6.6.70 & overclock to 1.8GHz

Run at max freq:
echo "1" > /sys/devices/system/cpu/cpufreq/boost

Signed-off-by: Patrick Yavitz <[email protected]>

config/sources/families/spacemit.conf

@@ -31,7 +31,7 @@ declare -g BOOTCONFIG="k1_defconfig" # Boot with generic SpacemiT K1 config
 case "${BRANCH}" in
 	current)
 		declare -g KERNELSOURCE='https://github.com/jmontleon/linux-bianbu.git'
-		declare -g KERNELBRANCH='commit:46927cc73d6e7261fb89dadc2295f1054c9a1fa9'
+		declare -g KERNELBRANCH='commit:d68e874061433bb36c1d2ed2dafe717b96abc379'
 		declare -g EXTRAWIFI="no" # WiFi drivers are already included in the kernel
 		declare -g KERNEL_MAJOR_MINOR="6.6"
 		declare -g LINUXCONFIG="linux-${LINUXFAMILY}-current"

patch/kernel/archive/spacemit-6.6/004-Max-freq-limitation-1.8GHz.patch

@@ -0,0 +1,58 @@
+From 4698d0e59f66da7282bd8c9e46e353d1ca64a92e Mon Sep 17 00:00:00 2001
+From: Patrick Yavitz <[email protected]>
+Date: Thu, 9 Jan 2025 10:14:18 -0500
+Subject: [PATCH] Max freq limitation 1.8GHz
+
+Signed-off-by: Patrick Yavitz <[email protected]>
+---
+ drivers/cpufreq/spacemit-cpufreq.c | 20 ++++----------------
+ 1 file changed, 4 insertions(+), 16 deletions(-)
+
+diff --git a/drivers/cpufreq/spacemit-cpufreq.c b/drivers/cpufreq/spacemit-cpufreq.c
+index 745844e9d2b2..f784e8fe545b 100644
+--- a/drivers/cpufreq/spacemit-cpufreq.c
++++ b/drivers/cpufreq/spacemit-cpufreq.c
+@@ -49,7 +49,7 @@ of_hotplug_cooling_register(struct cpufreq_policy *policy);
+ #define FILTER_POINTS_0			(135)
+ #define FILTER_POINTS_1			(142)
+
+-#define K1_MAX_FREQ_LIMITATION		(1600000)
++#define K1_MAX_FREQ_LIMITATION		(1800000)
+ #define M1_MAX_FREQ_LIMITATION		(1800000)
+
+ #endif
+@@ -427,18 +427,8 @@ int spacmeit_cpufreq_veritfy(struct cpufreq_policy_data *policy)
+ 	if (!policy->freq_table)
+ 		return -ENODEV;
+
+-	if ((wafer_prop << 16 | product_prop) == PRODUCT_ID_M1) {
+-		/* M1 */
+-		/* can update to 1.8G */
+-		cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
+-					policy->cpuinfo.max_freq);
+-	} else {
+-		/* K1 */
+-		/* only 1.6G allowed max */
+-		policy->max = policy->max > K1_MAX_FREQ_LIMITATION ? K1_MAX_FREQ_LIMITATION : policy->max;
+-		cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
+-					K1_MAX_FREQ_LIMITATION);
+-	}
++	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
++				policy->cpuinfo.max_freq);
+
+ 	cpufreq_for_each_valid_entry(pos, policy->freq_table) {
+ 		freq = pos->frequency;
+@@ -470,9 +460,7 @@ void spacemit_cpufreq_ready(struct cpufreq_policy *policy)
+ 	if ((wafer_prop << 16 | product_prop) == PRODUCT_ID_M1) {
+ 		/* M1 */
+ 	} else {
+-		/* K1 or other */
+-		remove_policy_boost_sysfs_file(policy);
+-		remove_boost_sysfs_file();
++		/* K1 */
+ 	}
+ }
+
+-- 
+2.39.5
+