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authorMichael Turquette <mturquette@linaro.org>2014-11-24 18:08:53 -0800
committerMichael Turquette <mturquette@linaro.org>2014-11-24 18:08:53 -0800
commitb082915c9d4b15590558766979aed78424690057 (patch)
tree22ea44f38cefc5954b5bebf63c845b409eac13a6
parentda57b46010dd8d93aabc4c3e8d11751ac617d914 (diff)
parentc1ec51603053260b138fc98e2ed18a5a9bea4515 (diff)
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Merge tag 'sunxi-clocks-for-3.19' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-next
Allwinner Clocks additions for 3.19 A few patches that should go through the clock tree, mostly fixes, cleanups, and new clocks additions to start to support the A80.
-rw-r--r--Documentation/devicetree/bindings/clock/sunxi.txt31
-rw-r--r--arch/arm/boot/dts/sun4i-a10.dtsi12
-rw-r--r--arch/arm/boot/dts/sun5i-a10s.dtsi12
-rw-r--r--arch/arm/boot/dts/sun5i-a13.dtsi12
-rw-r--r--arch/arm/boot/dts/sun6i-a31.dtsi12
-rw-r--r--arch/arm/boot/dts/sun7i-a20.dtsi12
-rw-r--r--arch/arm/boot/dts/sun8i-a23.dtsi12
-rw-r--r--drivers/clk/sunxi/Makefile1
-rw-r--r--drivers/clk/sunxi/clk-a20-gmac.c7
-rw-r--r--drivers/clk/sunxi/clk-factors.c2
-rw-r--r--drivers/clk/sunxi/clk-factors.h3
-rw-r--r--drivers/clk/sunxi/clk-mod0.c1
-rw-r--r--drivers/clk/sunxi/clk-sun8i-mbus.c1
-rw-r--r--drivers/clk/sunxi/clk-sun9i-core.c271
-rw-r--r--drivers/clk/sunxi/clk-sunxi.c85
15 files changed, 380 insertions, 94 deletions
diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt
index ed116df9c3e7..67b2b99f2b33 100644
--- a/Documentation/devicetree/bindings/clock/sunxi.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi.txt
@@ -10,14 +10,17 @@ Required properties:
"allwinner,sun4i-a10-pll1-clk" - for the main PLL clock and PLL4
"allwinner,sun6i-a31-pll1-clk" - for the main PLL clock on A31
"allwinner,sun8i-a23-pll1-clk" - for the main PLL clock on A23
+ "allwinner,sun9i-a80-pll4-clk" - for the peripheral PLLs on A80
"allwinner,sun4i-a10-pll5-clk" - for the PLL5 clock
"allwinner,sun4i-a10-pll6-clk" - for the PLL6 clock
"allwinner,sun6i-a31-pll6-clk" - for the PLL6 clock on A31
+ "allwinner,sun9i-a80-gt-clk" - for the GT bus clock on A80
"allwinner,sun4i-a10-cpu-clk" - for the CPU multiplexer clock
"allwinner,sun4i-a10-axi-clk" - for the AXI clock
"allwinner,sun8i-a23-axi-clk" - for the AXI clock on A23
"allwinner,sun4i-a10-axi-gates-clk" - for the AXI gates
"allwinner,sun4i-a10-ahb-clk" - for the AHB clock
+ "allwinner,sun9i-a80-ahb-clk" - for the AHB bus clocks on A80
"allwinner,sun4i-a10-ahb-gates-clk" - for the AHB gates on A10
"allwinner,sun5i-a13-ahb-gates-clk" - for the AHB gates on A13
"allwinner,sun5i-a10s-ahb-gates-clk" - for the AHB gates on A10s
@@ -26,24 +29,29 @@ Required properties:
"allwinner,sun6i-a31-ahb1-mux-clk" - for the AHB1 multiplexer on A31
"allwinner,sun6i-a31-ahb1-gates-clk" - for the AHB1 gates on A31
"allwinner,sun8i-a23-ahb1-gates-clk" - for the AHB1 gates on A23
+ "allwinner,sun9i-a80-ahb0-gates-clk" - for the AHB0 gates on A80
+ "allwinner,sun9i-a80-ahb1-gates-clk" - for the AHB1 gates on A80
+ "allwinner,sun9i-a80-ahb2-gates-clk" - for the AHB2 gates on A80
"allwinner,sun4i-a10-apb0-clk" - for the APB0 clock
"allwinner,sun6i-a31-apb0-clk" - for the APB0 clock on A31
"allwinner,sun8i-a23-apb0-clk" - for the APB0 clock on A23
+ "allwinner,sun9i-a80-apb0-clk" - for the APB0 bus clock on A80
"allwinner,sun4i-a10-apb0-gates-clk" - for the APB0 gates on A10
"allwinner,sun5i-a13-apb0-gates-clk" - for the APB0 gates on A13
"allwinner,sun5i-a10s-apb0-gates-clk" - for the APB0 gates on A10s
"allwinner,sun6i-a31-apb0-gates-clk" - for the APB0 gates on A31
"allwinner,sun7i-a20-apb0-gates-clk" - for the APB0 gates on A20
"allwinner,sun8i-a23-apb0-gates-clk" - for the APB0 gates on A23
+ "allwinner,sun9i-a80-apb0-gates-clk" - for the APB0 gates on A80
"allwinner,sun4i-a10-apb1-clk" - for the APB1 clock
- "allwinner,sun4i-a10-apb1-mux-clk" - for the APB1 clock muxing
+ "allwinner,sun9i-a80-apb1-clk" - for the APB1 bus clock on A80
"allwinner,sun4i-a10-apb1-gates-clk" - for the APB1 gates on A10
"allwinner,sun5i-a13-apb1-gates-clk" - for the APB1 gates on A13
"allwinner,sun5i-a10s-apb1-gates-clk" - for the APB1 gates on A10s
"allwinner,sun6i-a31-apb1-gates-clk" - for the APB1 gates on A31
"allwinner,sun7i-a20-apb1-gates-clk" - for the APB1 gates on A20
"allwinner,sun8i-a23-apb1-gates-clk" - for the APB1 gates on A23
- "allwinner,sun6i-a31-apb2-div-clk" - for the APB2 gates on A31
+ "allwinner,sun9i-a80-apb1-gates-clk" - for the APB1 gates on A80
"allwinner,sun6i-a31-apb2-gates-clk" - for the APB2 gates on A31
"allwinner,sun8i-a23-apb2-gates-clk" - for the APB2 gates on A23
"allwinner,sun5i-a13-mbus-clk" - for the MBUS clock on A13
@@ -63,8 +71,9 @@ Required properties for all clocks:
multiplexed clocks, the list order must match the hardware
programming order.
- #clock-cells : from common clock binding; shall be set to 0 except for
- "allwinner,*-gates-clk", "allwinner,sun4i-pll5-clk" and
- "allwinner,sun4i-pll6-clk" where it shall be set to 1
+ the following compatibles where it shall be set to 1:
+ "allwinner,*-gates-clk", "allwinner,sun4i-pll5-clk",
+ "allwinner,sun4i-pll6-clk", "allwinner,sun6i-a31-pll6-clk"
- clock-output-names : shall be the corresponding names of the outputs.
If the clock module only has one output, the name shall be the
module name.
@@ -79,6 +88,12 @@ Clock consumers should specify the desired clocks they use with a
"clocks" phandle cell. Consumers that are using a gated clock should
provide an additional ID in their clock property. This ID is the
offset of the bit controlling this particular gate in the register.
+For the other clocks with "#clock-cells" = 1, the additional ID shall
+refer to the index of the output.
+
+For "allwinner,sun6i-a31-pll6-clk", there are 2 outputs. The first output
+is the normal PLL6 output, or "pll6". The second output is rate doubled
+PLL6, or "pll6x2".
For example:
@@ -106,6 +121,14 @@ pll5: clk@01c20020 {
clock-output-names = "pll5_ddr", "pll5_other";
};
+pll6: clk@01c20028 {
+ #clock-cells = <1>;
+ compatible = "allwinner,sun6i-a31-pll6-clk";
+ reg = <0x01c20028 0x4>;
+ clocks = <&osc24M>;
+ clock-output-names = "pll6", "pll6x2";
+};
+
cpu: cpu@01c20054 {
#clock-cells = <0>;
compatible = "allwinner,sun4i-a10-cpu-clk";
diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index 380f914b226d..5e2ec2dd8333 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -174,19 +174,11 @@
"apb0_ir1", "apb0_keypad";
};
- apb1_mux: apb1_mux@01c20058 {
- #clock-cells = <0>;
- compatible = "allwinner,sun4i-a10-apb1-mux-clk";
- reg = <0x01c20058 0x4>;
- clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
- clock-output-names = "apb1_mux";
- };
-
- apb1: apb1@01c20058 {
+ apb1: clk@01c20058 {
#clock-cells = <0>;
compatible = "allwinner,sun4i-a10-apb1-clk";
reg = <0x01c20058 0x4>;
- clocks = <&apb1_mux>;
+ clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
clock-output-names = "apb1";
};
diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi
index 531272c0e526..d2a85144d2d9 100644
--- a/arch/arm/boot/dts/sun5i-a10s.dtsi
+++ b/arch/arm/boot/dts/sun5i-a10s.dtsi
@@ -162,19 +162,11 @@
"apb0_ir", "apb0_keypad";
};
- apb1_mux: apb1_mux@01c20058 {
- #clock-cells = <0>;
- compatible = "allwinner,sun4i-a10-apb1-mux-clk";
- reg = <0x01c20058 0x4>;
- clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
- clock-output-names = "apb1_mux";
- };
-
- apb1: apb1@01c20058 {
+ apb1: clk@01c20058 {
#clock-cells = <0>;
compatible = "allwinner,sun4i-a10-apb1-clk";
reg = <0x01c20058 0x4>;
- clocks = <&apb1_mux>;
+ clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
clock-output-names = "apb1";
};
diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi
index b131068f4f35..c35217ea1f64 100644
--- a/arch/arm/boot/dts/sun5i-a13.dtsi
+++ b/arch/arm/boot/dts/sun5i-a13.dtsi
@@ -161,19 +161,11 @@
clock-output-names = "apb0_codec", "apb0_pio", "apb0_ir";
};
- apb1_mux: apb1_mux@01c20058 {
- #clock-cells = <0>;
- compatible = "allwinner,sun4i-a10-apb1-mux-clk";
- reg = <0x01c20058 0x4>;
- clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
- clock-output-names = "apb1_mux";
- };
-
- apb1: apb1@01c20058 {
+ apb1: clk@01c20058 {
#clock-cells = <0>;
compatible = "allwinner,sun4i-a10-apb1-clk";
reg = <0x01c20058 0x4>;
- clocks = <&apb1_mux>;
+ clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
clock-output-names = "apb1";
};
diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi
index 543f895d18d3..4083201e93c8 100644
--- a/arch/arm/boot/dts/sun6i-a31.dtsi
+++ b/arch/arm/boot/dts/sun6i-a31.dtsi
@@ -217,19 +217,11 @@
"apb1_daudio1";
};
- apb2_mux: apb2_mux@01c20058 {
+ apb2: clk@01c20058 {
#clock-cells = <0>;
- compatible = "allwinner,sun4i-a10-apb1-mux-clk";
+ compatible = "allwinner,sun4i-a10-apb1-clk";
reg = <0x01c20058 0x4>;
clocks = <&osc32k>, <&osc24M>, <&pll6>, <&pll6>;
- clock-output-names = "apb2_mux";
- };
-
- apb2: apb2@01c20058 {
- #clock-cells = <0>;
- compatible = "allwinner,sun6i-a31-apb2-div-clk";
- reg = <0x01c20058 0x4>;
- clocks = <&apb2_mux>;
clock-output-names = "apb2";
};
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 82097c905c48..6d996c9e282a 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -222,19 +222,11 @@
"apb0_iis2", "apb0_keypad";
};
- apb1_mux: apb1_mux@01c20058 {
- #clock-cells = <0>;
- compatible = "allwinner,sun4i-a10-apb1-mux-clk";
- reg = <0x01c20058 0x4>;
- clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
- clock-output-names = "apb1_mux";
- };
-
- apb1: apb1@01c20058 {
+ apb1: clk@01c20058 {
#clock-cells = <0>;
compatible = "allwinner,sun4i-a10-apb1-clk";
reg = <0x01c20058 0x4>;
- clocks = <&apb1_mux>;
+ clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
clock-output-names = "apb1";
};
diff --git a/arch/arm/boot/dts/sun8i-a23.dtsi b/arch/arm/boot/dts/sun8i-a23.dtsi
index 6146ef15efbe..701960e9d033 100644
--- a/arch/arm/boot/dts/sun8i-a23.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23.dtsi
@@ -189,19 +189,11 @@
"apb1_daudio0", "apb1_daudio1";
};
- apb2_mux: apb2_mux_clk@01c20058 {
+ apb2: clk@01c20058 {
#clock-cells = <0>;
- compatible = "allwinner,sun4i-a10-apb1-mux-clk";
+ compatible = "allwinner,sun4i-a10-apb1-clk";
reg = <0x01c20058 0x4>;
clocks = <&osc32k>, <&osc24M>, <&pll6>, <&pll6>;
- clock-output-names = "apb2_mux";
- };
-
- apb2: apb2_clk@01c20058 {
- #clock-cells = <0>;
- compatible = "allwinner,sun6i-a31-apb2-div-clk";
- reg = <0x01c20058 0x4>;
- clocks = <&apb2_mux>;
clock-output-names = "apb2";
};
diff --git a/drivers/clk/sunxi/Makefile b/drivers/clk/sunxi/Makefile
index 7ddc2b553846..a66953c0f430 100644
--- a/drivers/clk/sunxi/Makefile
+++ b/drivers/clk/sunxi/Makefile
@@ -7,6 +7,7 @@ obj-y += clk-a10-hosc.o
obj-y += clk-a20-gmac.o
obj-y += clk-mod0.o
obj-y += clk-sun8i-mbus.o
+obj-y += clk-sun9i-core.o
obj-$(CONFIG_MFD_SUN6I_PRCM) += \
clk-sun6i-ar100.o clk-sun6i-apb0.o clk-sun6i-apb0-gates.o \
diff --git a/drivers/clk/sunxi/clk-a20-gmac.c b/drivers/clk/sunxi/clk-a20-gmac.c
index 5296fd6dd7b3..0dcf4f205fb8 100644
--- a/drivers/clk/sunxi/clk-a20-gmac.c
+++ b/drivers/clk/sunxi/clk-a20-gmac.c
@@ -53,6 +53,11 @@ static DEFINE_SPINLOCK(gmac_lock);
#define SUN7I_A20_GMAC_MASK 0x3
#define SUN7I_A20_GMAC_PARENTS 2
+static u32 sun7i_a20_gmac_mux_table[SUN7I_A20_GMAC_PARENTS] = {
+ 0x00, /* Select mii_phy_tx_clk */
+ 0x02, /* Select gmac_int_tx_clk */
+};
+
static void __init sun7i_a20_gmac_clk_setup(struct device_node *node)
{
struct clk *clk;
@@ -90,7 +95,7 @@ static void __init sun7i_a20_gmac_clk_setup(struct device_node *node)
gate->lock = &gmac_lock;
mux->reg = reg;
mux->mask = SUN7I_A20_GMAC_MASK;
- mux->flags = CLK_MUX_INDEX_BIT;
+ mux->table = sun7i_a20_gmac_mux_table;
mux->lock = &gmac_lock;
clk = clk_register_composite(NULL, clk_name,
diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c
index f83ba097126c..5521e866fa5e 100644
--- a/drivers/clk/sunxi/clk-factors.c
+++ b/drivers/clk/sunxi/clk-factors.c
@@ -224,7 +224,7 @@ struct clk * __init sunxi_factors_register(struct device_node *node,
/* set up gate properties */
mux->reg = reg;
mux->shift = data->mux;
- mux->mask = SUNXI_FACTORS_MUX_MASK;
+ mux->mask = data->muxmask;
mux->lock = factors->lock;
mux_hw = &mux->hw;
}
diff --git a/drivers/clk/sunxi/clk-factors.h b/drivers/clk/sunxi/clk-factors.h
index 9913840018d3..912238fde132 100644
--- a/drivers/clk/sunxi/clk-factors.h
+++ b/drivers/clk/sunxi/clk-factors.h
@@ -7,8 +7,6 @@
#define SUNXI_FACTORS_NOT_APPLICABLE (0)
-#define SUNXI_FACTORS_MUX_MASK 0x3
-
struct clk_factors_config {
u8 nshift;
u8 nwidth;
@@ -24,6 +22,7 @@ struct clk_factors_config {
struct factors_data {
int enable;
int mux;
+ int muxmask;
struct clk_factors_config *table;
void (*getter) (u32 *rate, u32 parent_rate, u8 *n, u8 *k, u8 *m, u8 *p);
const char *name;
diff --git a/drivers/clk/sunxi/clk-mod0.c b/drivers/clk/sunxi/clk-mod0.c
index 4a563850ee6e..da0524eaee94 100644
--- a/drivers/clk/sunxi/clk-mod0.c
+++ b/drivers/clk/sunxi/clk-mod0.c
@@ -70,6 +70,7 @@ static struct clk_factors_config sun4i_a10_mod0_config = {
static const struct factors_data sun4i_a10_mod0_data __initconst = {
.enable = 31,
.mux = 24,
+ .muxmask = BIT(1) | BIT(0),
.table = &sun4i_a10_mod0_config,
.getter = sun4i_a10_get_mod0_factors,
};
diff --git a/drivers/clk/sunxi/clk-sun8i-mbus.c b/drivers/clk/sunxi/clk-sun8i-mbus.c
index 8e49b44cee41..ef49786eefd3 100644
--- a/drivers/clk/sunxi/clk-sun8i-mbus.c
+++ b/drivers/clk/sunxi/clk-sun8i-mbus.c
@@ -60,6 +60,7 @@ static struct clk_factors_config sun8i_a23_mbus_config = {
static const struct factors_data sun8i_a23_mbus_data __initconst = {
.enable = 31,
.mux = 24,
+ .muxmask = BIT(1) | BIT(0),
.table = &sun8i_a23_mbus_config,
.getter = sun8i_a23_get_mbus_factors,
};
diff --git a/drivers/clk/sunxi/clk-sun9i-core.c b/drivers/clk/sunxi/clk-sun9i-core.c
new file mode 100644
index 000000000000..3cb9036d91bb
--- /dev/null
+++ b/drivers/clk/sunxi/clk-sun9i-core.c
@@ -0,0 +1,271 @@
+/*
+ * Copyright 2014 Chen-Yu Tsai
+ *
+ * Chen-Yu Tsai <wens@csie.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/log2.h>
+
+#include "clk-factors.h"
+
+
+/**
+ * sun9i_a80_get_pll4_factors() - calculates n, p, m factors for PLL1
+ * PLL4 rate is calculated as follows
+ * rate = (parent_rate * n >> p) / (m + 1);
+ * parent_rate is always 24Mhz
+ *
+ * p and m are named div1 and div2 in Allwinner's SDK
+ */
+
+static void sun9i_a80_get_pll4_factors(u32 *freq, u32 parent_rate,
+ u8 *n, u8 *k, u8 *m, u8 *p)
+{
+ int div;
+
+ /* Normalize value to a 6M multiple */
+ div = DIV_ROUND_UP(*freq, 6000000);
+
+ /* divs above 256 cannot be odd */
+ if (div > 256)
+ div = round_up(div, 2);
+
+ /* divs above 512 must be a multiple of 4 */
+ if (div > 512)
+ div = round_up(div, 4);
+
+ *freq = 6000000 * div;
+
+ /* we were called to round the frequency, we can now return */
+ if (n == NULL)
+ return;
+
+ /* p will be 1 for divs under 512 */
+ if (div < 512)
+ *p = 1;
+ else
+ *p = 0;
+
+ /* m will be 1 if div is odd */
+ if (div & 1)
+ *m = 1;
+ else
+ *m = 0;
+
+ /* calculate a suitable n based on m and p */
+ *n = div / (*p + 1) / (*m + 1);
+}
+
+static struct clk_factors_config sun9i_a80_pll4_config = {
+ .mshift = 18,
+ .mwidth = 1,
+ .nshift = 8,
+ .nwidth = 8,
+ .pshift = 16,
+ .pwidth = 1,
+};
+
+static const struct factors_data sun9i_a80_pll4_data __initconst = {
+ .enable = 31,
+ .table = &sun9i_a80_pll4_config,
+ .getter = sun9i_a80_get_pll4_factors,
+};
+
+static DEFINE_SPINLOCK(sun9i_a80_pll4_lock);
+
+static void __init sun9i_a80_pll4_setup(struct device_node *node)
+{
+ sunxi_factors_register(node, &sun9i_a80_pll4_data, &sun9i_a80_pll4_lock);
+}
+CLK_OF_DECLARE(sun9i_a80_pll4, "allwinner,sun9i-a80-pll4-clk", sun9i_a80_pll4_setup);
+
+
+/**
+ * sun9i_a80_get_gt_factors() - calculates m factor for GT
+ * GT rate is calculated as follows
+ * rate = parent_rate / (m + 1);
+ */
+
+static void sun9i_a80_get_gt_factors(u32 *freq, u32 parent_rate,
+ u8 *n, u8 *k, u8 *m, u8 *p)
+{
+ u32 div;
+
+ if (parent_rate < *freq)
+ *freq = parent_rate;
+
+ div = DIV_ROUND_UP(parent_rate, *freq);
+
+ /* maximum divider is 4 */
+ if (div > 4)
+ div = 4;
+
+ *freq = parent_rate / div;
+
+ /* we were called to round the frequency, we can now return */
+ if (!m)
+ return;
+
+ *m = div;
+}
+
+static struct clk_factors_config sun9i_a80_gt_config = {
+ .mshift = 0,
+ .mwidth = 2,
+};
+
+static const struct factors_data sun9i_a80_gt_data __initconst = {
+ .mux = 24,
+ .muxmask = BIT(1) | BIT(0),
+ .table = &sun9i_a80_gt_config,
+ .getter = sun9i_a80_get_gt_factors,
+};
+
+static DEFINE_SPINLOCK(sun9i_a80_gt_lock);
+
+static void __init sun9i_a80_gt_setup(struct device_node *node)
+{
+ struct clk *gt = sunxi_factors_register(node, &sun9i_a80_gt_data,
+ &sun9i_a80_gt_lock);
+
+ /* The GT bus clock needs to be always enabled */
+ __clk_get(gt);
+ clk_prepare_enable(gt);
+}
+CLK_OF_DECLARE(sun9i_a80_gt, "allwinner,sun9i-a80-gt-clk", sun9i_a80_gt_setup);
+
+
+/**
+ * sun9i_a80_get_ahb_factors() - calculates p factor for AHB0/1/2
+ * AHB rate is calculated as follows
+ * rate = parent_rate >> p;
+ */
+
+static void sun9i_a80_get_ahb_factors(u32 *freq, u32 parent_rate,
+ u8 *n, u8 *k, u8 *m, u8 *p)
+{
+ u32 _p;
+
+ if (parent_rate < *freq)
+ *freq = parent_rate;
+
+ _p = order_base_2(DIV_ROUND_UP(parent_rate, *freq));
+
+ /* maximum p is 3 */
+ if (_p > 3)
+ _p = 3;
+
+ *freq = parent_rate >> _p;
+
+ /* we were called to round the frequency, we can now return */
+ if (!p)
+ return;
+
+ *p = _p;
+}
+
+static struct clk_factors_config sun9i_a80_ahb_config = {
+ .pshift = 0,
+ .pwidth = 2,
+};
+
+static const struct factors_data sun9i_a80_ahb_data __initconst = {
+ .mux = 24,
+ .muxmask = BIT(1) | BIT(0),
+ .table = &sun9i_a80_ahb_config,
+ .getter = sun9i_a80_get_ahb_factors,
+};
+
+static DEFINE_SPINLOCK(sun9i_a80_ahb_lock);
+
+static void __init sun9i_a80_ahb_setup(struct device_node *node)
+{
+ sunxi_factors_register(node, &sun9i_a80_ahb_data, &sun9i_a80_ahb_lock);
+}
+CLK_OF_DECLARE(sun9i_a80_ahb, "allwinner,sun9i-a80-ahb-clk", sun9i_a80_ahb_setup);
+
+
+static const struct factors_data sun9i_a80_apb0_data __initconst = {
+ .mux = 24,
+ .muxmask = BIT(0),
+ .table = &sun9i_a80_ahb_config,
+ .getter = sun9i_a80_get_ahb_factors,
+};
+
+static DEFINE_SPINLOCK(sun9i_a80_apb0_lock);
+
+static void __init sun9i_a80_apb0_setup(struct device_node *node)
+{
+ sunxi_factors_register(node, &sun9i_a80_apb0_data, &sun9i_a80_apb0_lock);
+}
+CLK_OF_DECLARE(sun9i_a80_apb0, "allwinner,sun9i-a80-apb0-clk", sun9i_a80_apb0_setup);
+
+
+/**
+ * sun9i_a80_get_apb1_factors() - calculates m, p factors for APB1
+ * APB1 rate is calculated as follows
+ * rate = (parent_rate >> p) / (m + 1);
+ */
+
+static void sun9i_a80_get_apb1_factors(u32 *freq, u32 parent_rate,
+ u8 *n, u8 *k, u8 *m, u8 *p)
+{
+ u32 div;
+ u8 calcm, calcp;
+
+ if (parent_rate < *freq)
+ *freq = parent_rate;
+
+ div = DIV_ROUND_UP(parent_rate, *freq);
+
+ /* Highest possible divider is 256 (p = 3, m = 31) */
+ if (div > 256)
+ div = 256;
+
+ calcp = order_base_2(div);
+ calcm = (parent_rate >> calcp) - 1;
+ *freq = (parent_rate >> calcp) / (calcm + 1);
+
+ /* we were called to round the frequency, we can now return */
+ if (n == NULL)
+ return;
+
+ *m = calcm;
+ *p = calcp;
+}
+
+static struct clk_factors_config sun9i_a80_apb1_config = {
+ .mshift = 0,
+ .mwidth = 5,
+ .pshift = 16,
+ .pwidth = 2,
+};
+
+static const struct factors_data sun9i_a80_apb1_data __initconst = {
+ .mux = 24,
+ .muxmask = BIT(0),
+ .table = &sun9i_a80_apb1_config,
+ .getter = sun9i_a80_get_apb1_factors,
+};
+
+static DEFINE_SPINLOCK(sun9i_a80_apb1_lock);
+
+static void __init sun9i_a80_apb1_setup(struct device_node *node)
+{
+ sunxi_factors_register(node, &sun9i_a80_apb1_data, &sun9i_a80_apb1_lock);
+}
+CLK_OF_DECLARE(sun9i_a80_apb1, "allwinner,sun9i-a80-apb1-clk", sun9i_a80_apb1_setup);
diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index d5dc951264ca..570202582dcf 100644
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -245,9 +245,9 @@ static void sun4i_get_pll5_factors(u32 *freq, u32 parent_rate,
}
/**
- * sun6i_a31_get_pll6_factors() - calculates n, k factors for A31 PLL6
- * PLL6 rate is calculated as follows
- * rate = parent_rate * n * (k + 1) / 2
+ * sun6i_a31_get_pll6_factors() - calculates n, k factors for A31 PLL6x2
+ * PLL6x2 rate is calculated as follows
+ * rate = parent_rate * (n + 1) * (k + 1)
* parent_rate is always 24Mhz
*/
@@ -256,13 +256,7 @@ static void sun6i_a31_get_pll6_factors(u32 *freq, u32 parent_rate,
{
u8 div;
- /*
- * We always have 24MHz / 2, so we can just say that our
- * parent clock is 12MHz.
- */
- parent_rate = parent_rate / 2;
-
- /* Normalize value to a parent_rate multiple (24M / 2) */
+ /* Normalize value to a parent_rate multiple (24M) */
div = *freq / parent_rate;
*freq = parent_rate * div;
@@ -274,7 +268,7 @@ static void sun6i_a31_get_pll6_factors(u32 *freq, u32 parent_rate,
if (*k > 3)
*k = 3;
- *n = DIV_ROUND_UP(div, (*k+1));
+ *n = DIV_ROUND_UP(div, (*k+1)) - 1;
}
/**
@@ -445,6 +439,7 @@ static struct clk_factors_config sun6i_a31_pll6_config = {
.nwidth = 5,
.kshift = 4,
.kwidth = 2,
+ .n_start = 1,
};
static struct clk_factors_config sun4i_apb1_config = {
@@ -504,9 +499,12 @@ static const struct factors_data sun6i_a31_pll6_data __initconst = {
.enable = 31,
.table = &sun6i_a31_pll6_config,
.getter = sun6i_a31_get_pll6_factors,
+ .name = "pll6x2",
};
static const struct factors_data sun4i_apb1_data __initconst = {
+ .mux = 24,
+ .muxmask = BIT(1) | BIT(0),
.table = &sun4i_apb1_config,
.getter = sun4i_get_apb1_factors,
};
@@ -514,6 +512,7 @@ static const struct factors_data sun4i_apb1_data __initconst = {
static const struct factors_data sun7i_a20_out_data __initconst = {
.enable = 31,
.mux = 24,
+ .muxmask = BIT(1) | BIT(0),
.table = &sun7i_a20_out_config,
.getter = sun7i_a20_get_out_factors,
};
@@ -544,10 +543,6 @@ static const struct mux_data sun6i_a31_ahb1_mux_data __initconst = {
.shift = 12,
};
-static const struct mux_data sun4i_apb1_mux_data __initconst = {
- .shift = 24,
-};
-
static void __init sunxi_mux_clk_setup(struct device_node *node,
struct mux_data *data)
{
@@ -633,12 +628,6 @@ static const struct div_data sun4i_apb0_data __initconst = {
.table = sun4i_apb0_table,
};
-static const struct div_data sun6i_a31_apb2_div_data __initconst = {
- .shift = 0,
- .pow = 0,
- .width = 4,
-};
-
static void __init sunxi_divider_clk_setup(struct device_node *node,
struct div_data *data)
{
@@ -757,6 +746,18 @@ static const struct gates_data sun8i_a23_ahb1_gates_data __initconst = {
.mask = {0x25386742, 0x2505111},
};
+static const struct gates_data sun9i_a80_ahb0_gates_data __initconst = {
+ .mask = {0xF5F12B},
+};
+
+static const struct gates_data sun9i_a80_ahb1_gates_data __initconst = {
+ .mask = {0x1E20003},
+};
+
+static const struct gates_data sun9i_a80_ahb2_gates_data __initconst = {
+ .mask = {0x9B7},
+};
+
static const struct gates_data sun4i_apb0_gates_data __initconst = {
.mask = {0x4EF},
};
@@ -773,6 +774,10 @@ static const struct gates_data sun7i_a20_apb0_gates_data __initconst = {
.mask = { 0x4ff },
};
+static const struct gates_data sun9i_a80_apb0_gates_data __initconst = {
+ .mask = {0xEB822},
+};
+
static const struct gates_data sun4i_apb1_gates_data __initconst = {
.mask = {0xFF00F7},
};
@@ -801,6 +806,10 @@ static const struct gates_data sun7i_a20_apb1_gates_data __initconst = {
.mask = { 0xff80ff },
};
+static const struct gates_data sun9i_a80_apb1_gates_data __initconst = {
+ .mask = {0x3F001F},
+};
+
static const struct gates_data sun8i_a23_apb2_gates_data __initconst = {
.mask = {0x1F0007},
};
@@ -893,6 +902,7 @@ static void __init sunxi_gates_clk_setup(struct device_node *node,
struct divs_data {
const struct factors_data *factors; /* data for the factor clock */
+ int ndivs; /* number of children */
struct {
u8 fixed; /* is it a fixed divisor? if not... */
struct clk_div_table *table; /* is it a table based divisor? */
@@ -912,6 +922,7 @@ static struct clk_div_table pll6_sata_tbl[] = {
static const struct divs_data pll5_divs_data __initconst = {
.factors = &sun4i_pll5_data,
+ .ndivs = 2,
.div = {
{ .shift = 0, .pow = 0, }, /* M, DDR */
{ .shift = 16, .pow = 1, }, /* P, other */
@@ -920,12 +931,21 @@ static const struct divs_data pll5_divs_data __initconst = {
static const struct divs_data pll6_divs_data __initconst = {
.factors = &sun4i_pll6_data,
+ .ndivs = 2,
.div = {
{ .shift = 0, .table = pll6_sata_tbl, .gate = 14 }, /* M, SATA */
{ .fixed = 2 }, /* P, other */
}
};
+static const struct divs_data sun6i_a31_pll6_divs_data __initconst = {
+ .factors = &sun6i_a31_pll6_data,
+ .ndivs = 1,
+ .div = {
+ { .fixed = 2 }, /* normal output */
+ }
+};
+
/**
* sunxi_divs_clk_setup() - Setup function for leaf divisors on clocks
*
@@ -950,7 +970,7 @@ static void __init sunxi_divs_clk_setup(struct device_node *node,
struct clk_fixed_factor *fix_factor;
struct clk_divider *divider;
void __iomem *reg;
- int i = 0;
+ int ndivs = SUNXI_DIVS_MAX_QTY, i = 0;
int flags, clkflags;
/* Set up factor clock that we will be dividing */
@@ -973,7 +993,11 @@ static void __init sunxi_divs_clk_setup(struct device_node *node,
* our RAM clock! */
clkflags = !strcmp("pll5", parent) ? 0 : CLK_SET_RATE_PARENT;
- for (i = 0; i < SUNXI_DIVS_MAX_QTY; i++) {
+ /* if number of children known, use it */
+ if (data->ndivs)
+ ndivs = data->ndivs;
+
+ for (i = 0; i < ndivs; i++) {
if (of_property_read_string_index(node, "clock-output-names",
i, &clk_name) != 0)
break;
@@ -1062,7 +1086,6 @@ static const struct of_device_id clk_factors_match[] __initconst = {
{.compatible = "allwinner,sun6i-a31-pll1-clk", .data = &sun6i_a31_pll1_data,},
{.compatible = "allwinner,sun8i-a23-pll1-clk", .data = &sun8i_a23_pll1_data,},
{.compatible = "allwinner,sun7i-a20-pll4-clk", .data = &sun7i_a20_pll4_data,},
- {.compatible = "allwinner,sun6i-a31-pll6-clk", .data = &sun6i_a31_pll6_data,},
{.compatible = "allwinner,sun4i-a10-apb1-clk", .data = &sun4i_apb1_data,},
{.compatible = "allwinner,sun7i-a20-out-clk", .data = &sun7i_a20_out_data,},
{}
@@ -1074,7 +1097,6 @@ static const struct of_device_id clk_div_match[] __initconst = {
{.compatible = "allwinner,sun8i-a23-axi-clk", .data = &sun8i_a23_axi_data,},
{.compatible = "allwinner,sun4i-a10-ahb-clk", .data = &sun4i_ahb_data,},
{.compatible = "allwinner,sun4i-a10-apb0-clk", .data = &sun4i_apb0_data,},
- {.compatible = "allwinner,sun6i-a31-apb2-div-clk", .data = &sun6i_a31_apb2_div_data,},
{}
};
@@ -1082,13 +1104,13 @@ static const struct of_device_id clk_div_match[] __initconst = {
static const struct of_device_id clk_divs_match[] __initconst = {
{.compatible = "allwinner,sun4i-a10-pll5-clk", .data = &pll5_divs_data,},
{.compatible = "allwinner,sun4i-a10-pll6-clk", .data = &pll6_divs_data,},
+ {.compatible = "allwinner,sun6i-a31-pll6-clk", .data = &sun6i_a31_pll6_divs_data,},
{}
};
/* Matches for mux clocks */
static const struct of_device_id clk_mux_match[] __initconst = {
{.compatible = "allwinner,sun4i-a10-cpu-clk", .data = &sun4i_cpu_mux_data,},
- {.compatible = "allwinner,sun4i-a10-apb1-mux-clk", .data = &sun4i_apb1_mux_data,},
{.compatible = "allwinner,sun6i-a31-ahb1-mux-clk", .data = &sun6i_a31_ahb1_mux_data,},
{}
};
@@ -1102,16 +1124,21 @@ static const struct of_device_id clk_gates_match[] __initconst = {
{.compatible = "allwinner,sun6i-a31-ahb1-gates-clk", .data = &sun6i_a31_ahb1_gates_data,},
{.compatible = "allwinner,sun7i-a20-ahb-gates-clk", .data = &sun7i_a20_ahb_gates_data,},
{.compatible = "allwinner,sun8i-a23-ahb1-gates-clk", .data = &sun8i_a23_ahb1_gates_data,},
+ {.compatible = "allwinner,sun9i-a80-ahb0-gates-clk", .data = &sun9i_a80_ahb0_gates_data,},
+ {.compatible = "allwinner,sun9i-a80-ahb1-gates-clk", .data = &sun9i_a80_ahb1_gates_data,},
+ {.compatible = "allwinner,sun9i-a80-ahb2-gates-clk", .data = &sun9i_a80_ahb2_gates_data,},
{.compatible = "allwinner,sun4i-a10-apb0-gates-clk", .data = &sun4i_apb0_gates_data,},
{.compatible = "allwinner,sun5i-a10s-apb0-gates-clk", .data = &sun5i_a10s_apb0_gates_data,},
{.compatible = "allwinner,sun5i-a13-apb0-gates-clk", .data = &sun5i_a13_apb0_gates_data,},
{.compatible = "allwinner,sun7i-a20-apb0-gates-clk", .data = &sun7i_a20_apb0_gates_data,},
+ {.compatible = "allwinner,sun9i-a80-apb0-gates-clk", .data = &sun9i_a80_apb0_gates_data,},
{.compatible = "allwinner,sun4i-a10-apb1-gates-clk", .data = &sun4i_apb1_gates_data,},
{.compatible = "allwinner,sun5i-a10s-apb1-gates-clk", .data = &sun5i_a10s_apb1_gates_data,},
{.compatible = "allwinner,sun5i-a13-apb1-gates-clk", .data = &sun5i_a13_apb1_gates_data,},
{.compatible = "allwinner,sun6i-a31-apb1-gates-clk", .data = &sun6i_a31_apb1_gates_data,},
{.compatible = "allwinner,sun7i-a20-apb1-gates-clk", .data = &sun7i_a20_apb1_gates_data,},
{.compatible = "allwinner,sun8i-a23-apb1-gates-clk", .data = &sun8i_a23_apb1_gates_data,},
+ {.compatible = "allwinner,sun9i-a80-apb1-gates-clk", .data = &sun9i_a80_apb1_gates_data,},
{.compatible = "allwinner,sun6i-a31-apb2-gates-clk", .data = &sun6i_a31_apb2_gates_data,},
{.compatible = "allwinner,sun8i-a23-apb2-gates-clk", .data = &sun8i_a23_apb2_gates_data,},
{.compatible = "allwinner,sun4i-a10-usb-clk", .data = &sun4i_a10_usb_gates_data,},
@@ -1200,3 +1227,9 @@ static void __init sun6i_init_clocks(struct device_node *node)
}
CLK_OF_DECLARE(sun6i_a31_clk_init, "allwinner,sun6i-a31", sun6i_init_clocks);
CLK_OF_DECLARE(sun8i_a23_clk_init, "allwinner,sun8i-a23", sun6i_init_clocks);
+
+static void __init sun9i_init_clocks(struct device_node *node)
+{
+ sunxi_init_clocks(NULL, 0);
+}
+CLK_OF_DECLARE(sun9i_a80_clk_init, "allwinner,sun9i-a80", sun9i_init_clocks);