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authorMatti Laakso <matti.laakso@outlook.com>2018-03-18 17:23:08 +0200
committerHauke Mehrtens <hauke@hauke-m.de>2018-03-31 16:13:19 +0200
commitcae808946ae5f698d8c9e2c58b9b75e69c343c38 (patch)
treed5c642fcbc6705b4d53a0402f08ca6ff1038ce52 /target/linux/pistachio/patches-4.14/108-clk-pistachio-Fix-wrong-SDHost-card-speed.patch
parent2534141322b0541daa627a516280638c12a262fe (diff)
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pistachio: add kernel 4.14 support
Add patches and config for 4.14, refreshed from 4.9. Signed-off-by: Matti Laakso <matti.laakso@outlook.com>
Diffstat (limited to 'target/linux/pistachio/patches-4.14/108-clk-pistachio-Fix-wrong-SDHost-card-speed.patch')
-rw-r--r--target/linux/pistachio/patches-4.14/108-clk-pistachio-Fix-wrong-SDHost-card-speed.patch49
1 files changed, 49 insertions, 0 deletions
diff --git a/target/linux/pistachio/patches-4.14/108-clk-pistachio-Fix-wrong-SDHost-card-speed.patch b/target/linux/pistachio/patches-4.14/108-clk-pistachio-Fix-wrong-SDHost-card-speed.patch
new file mode 100644
index 0000000..5329ad6
--- /dev/null
+++ b/target/linux/pistachio/patches-4.14/108-clk-pistachio-Fix-wrong-SDHost-card-speed.patch
@@ -0,0 +1,49 @@
+From 3642843a06025ec333d7e92580cf52cb8db2a652 Mon Sep 17 00:00:00 2001
+From: Govindraj Raja <Govindraj.Raja@imgtec.com>
+Date: Fri, 8 Jan 2016 16:36:07 +0000
+Subject: clk: pistachio: Fix wrong SDHost card speed
+
+The SDHost currently clocks the card 4x slower than it
+should do, because there is fixed divide by 4 in the
+sdhost wrapper that is not present in the clock tree.
+To model this add a fixed divide by 4 clock node in
+the SDHost clock path.
+
+This will ensure the right clock frequency is selected when
+the mmc driver tries to configure frequency on card insert.
+
+Signed-off-by: Govindraj Raja <Govindraj.Raja@imgtec.com>
+---
+ drivers/clk/pistachio/clk-pistachio.c | 3 ++-
+ include/dt-bindings/clock/pistachio-clk.h | 1 +
+ 2 files changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/clk/pistachio/clk-pistachio.c
++++ b/drivers/clk/pistachio/clk-pistachio.c
+@@ -44,7 +44,7 @@ static struct pistachio_gate pistachio_g
+ GATE(CLK_AUX_ADC_INTERNAL, "aux_adc_internal", "sys_internal_div",
+ 0x104, 22),
+ GATE(CLK_AUX_ADC, "aux_adc", "aux_adc_div", 0x104, 23),
+- GATE(CLK_SD_HOST, "sd_host", "sd_host_div", 0x104, 24),
++ GATE(CLK_SD_HOST, "sd_host", "sd_host_div4", 0x104, 24),
+ GATE(CLK_BT, "bt", "bt_div", 0x104, 25),
+ GATE(CLK_BT_DIV4, "bt_div4", "bt_div4_div", 0x104, 26),
+ GATE(CLK_BT_DIV8, "bt_div8", "bt_div8_div", 0x104, 27),
+@@ -54,6 +54,7 @@ static struct pistachio_gate pistachio_g
+ static struct pistachio_fixed_factor pistachio_ffs[] __initdata = {
+ FIXED_FACTOR(CLK_WIFI_DIV4, "wifi_div4", "wifi_pll", 4),
+ FIXED_FACTOR(CLK_WIFI_DIV8, "wifi_div8", "wifi_pll", 8),
++ FIXED_FACTOR(CLK_SDHOST_DIV4, "sd_host_div4", "sd_host_div", 4),
+ };
+
+ static struct pistachio_div pistachio_divs[] __initdata = {
+--- a/include/dt-bindings/clock/pistachio-clk.h
++++ b/include/dt-bindings/clock/pistachio-clk.h
+@@ -21,6 +21,7 @@
+ /* Fixed-factor clocks */
+ #define CLK_WIFI_DIV4 16
+ #define CLK_WIFI_DIV8 17
++#define CLK_SDHOST_DIV4 18
+
+ /* Gate clocks */
+ #define CLK_MIPS 32