| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1367315783-21345-2-git-send-email-maxime.ripard@free-electrons.com>
Date: Tue, 30 Apr 2013 11:56:22 +0200
From: Maxime Ripard <maxime.ripard@...e-electrons.com>
To: linux-arm-kernel@...ts.infradead.org
Cc: Emilio Lopez <emilio@...pez.com.ar>,
Mike Turquette <mturquette@...aro.org>,
Maxime Ripard <maxime.ripard@...e-electrons.com>,
Grant Likely <grant.likely@...retlab.ca>,
Rob Herring <rob.herring@...xeda.com>,
Rob Landley <rob@...dley.net>,
devicetree-discuss@...ts.ozlabs.org, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] clk: sun5i: Add compatibles for Allwinner A13
The A13 has a lot less clocks than the one found in the Allwinner A10.
Add these stripped down clocks to the clock driver and in the
documentation.
Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
---
Documentation/devicetree/bindings/clock/sunxi.txt | 117 +++------------------
.../bindings/clock/sunxi/sun4i-a10-gates.txt | 93 ++++++++++++++++
.../bindings/clock/sunxi/sun5i-a13-gates.txt | 58 ++++++++++
drivers/clk/sunxi/clk-sunxi.c | 31 ++++--
4 files changed, 187 insertions(+), 112 deletions(-)
create mode 100644 Documentation/devicetree/bindings/clock/sunxi/sun4i-a10-gates.txt
create mode 100644 Documentation/devicetree/bindings/clock/sunxi/sun5i-a13-gates.txt
diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt
index 729f524..d495521 100644
--- a/Documentation/devicetree/bindings/clock/sunxi.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi.txt
@@ -12,22 +12,30 @@ Required properties:
"allwinner,sun4i-axi-clk" - for the AXI clock
"allwinner,sun4i-axi-gates-clk" - for the AXI gates
"allwinner,sun4i-ahb-clk" - for the AHB clock
- "allwinner,sun4i-ahb-gates-clk" - for the AHB gates
+ "allwinner,sun4i-ahb-gates-clk" - for the AHB gates on A10
+ "allwinner,sun5i-a13-ahb-gates-clk" - for the AHB gates on A13
"allwinner,sun4i-apb0-clk" - for the APB0 clock
- "allwinner,sun4i-apb0-gates-clk" - for the APB0 gates
+ "allwinner,sun4i-apb0-gates-clk" - for the APB0 gates on A10
+ "allwinner,sun5i-a13-apb0-gates-clk" - for the APB0 gates on A13
"allwinner,sun4i-apb1-clk" - for the APB1 clock
"allwinner,sun4i-apb1-mux-clk" - for the APB1 clock muxing
- "allwinner,sun4i-apb1-gates-clk" - for the APB1 gates
+ "allwinner,sun4i-apb1-gates-clk" - for the APB1 gates on A10
+ "allwinner,sun5i-a13-apb1-gates-clk" - for the APB1 gates on A13
Required properties for all clocks:
- reg : shall be the control register address for the clock.
- clocks : shall be the input parent clock(s) phandle for the clock
- #clock-cells : from common clock binding; shall be set to 0 except for
- "allwinner,sun4i-*-gates-clk" where it shall be set to 1
+ "allwinner,*-gates-clk" where it shall be set to 1
-Additionally, "allwinner,sun4i-*-gates-clk" clocks require:
+Additionally, "allwinner,*-gates-clk" clocks require:
- clock-output-names : the corresponding gate names that the clock controls
+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. The values of this
+ID are documented in sunxi/<soc>-gates.txt.
+
For example:
osc24M: osc24M@...20050 {
@@ -50,102 +58,3 @@ cpu: cpu@...20054 {
reg = <0x01c20054 0x4>;
clocks = <&osc32k>, <&osc24M>, <&pll1>;
};
-
-
-
-Gate clock outputs
-
-The "allwinner,sun4i-*-gates-clk" clocks provide several gatable outputs;
-their corresponding offsets as present on sun4i are listed below. Note that
-some of these gates are not present on sun5i.
-
- * AXI gates ("allwinner,sun4i-axi-gates-clk")
-
- DRAM 0
-
- * AHB gates ("allwinner,sun4i-ahb-gates-clk")
-
- USB0 0
- EHCI0 1
- OHCI0 2*
- EHCI1 3
- OHCI1 4*
- SS 5
- DMA 6
- BIST 7
- MMC0 8
- MMC1 9
- MMC2 10
- MMC3 11
- MS 12**
- NAND 13
- SDRAM 14
-
- ACE 16
- EMAC 17
- TS 18
-
- SPI0 20
- SPI1 21
- SPI2 22
- SPI3 23
- PATA 24
- SATA 25**
- GPS 26*
-
- VE 32
- TVD 33
- TVE0 34
- TVE1 35
- LCD0 36
- LCD1 37
-
- CSI0 40
- CSI1 41
-
- HDMI 43
- DE_BE0 44
- DE_BE1 45
- DE_FE0 46
- DE_FE1 47
-
- MP 50
-
- MALI400 52
-
- * APB0 gates ("allwinner,sun4i-apb0-gates-clk")
-
- CODEC 0
- SPDIF 1*
- AC97 2
- IIS 3
-
- PIO 5
- IR0 6
- IR1 7
-
- KEYPAD 10
-
- * APB1 gates ("allwinner,sun4i-apb1-gates-clk")
-
- I2C0 0
- I2C1 1
- I2C2 2
-
- CAN 4
- SCR 5
- PS20 6
- PS21 7
-
- UART0 16
- UART1 17
- UART2 18
- UART3 19
- UART4 20
- UART5 21
- UART6 22
- UART7 23
-
-Notation:
- [*]: The datasheet didn't mention these, but they are present on AW code
- [**]: The datasheet had this marked as "NC" but they are used on AW code
diff --git a/Documentation/devicetree/bindings/clock/sunxi/sun4i-a10-gates.txt b/Documentation/devicetree/bindings/clock/sunxi/sun4i-a10-gates.txt
new file mode 100644
index 0000000..6a03475
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sunxi/sun4i-a10-gates.txt
@@ -0,0 +1,93 @@
+Gate clock outputs
+------------------
+
+ * AXI gates ("allwinner,sun4i-axi-gates-clk")
+
+ DRAM 0
+
+ * AHB gates ("allwinner,sun4i-ahb-gates-clk")
+
+ USB0 0
+ EHCI0 1
+ OHCI0 2*
+ EHCI1 3
+ OHCI1 4*
+ SS 5
+ DMA 6
+ BIST 7
+ MMC0 8
+ MMC1 9
+ MMC2 10
+ MMC3 11
+ MS 12**
+ NAND 13
+ SDRAM 14
+
+ ACE 16
+ EMAC 17
+ TS 18
+
+ SPI0 20
+ SPI1 21
+ SPI2 22
+ SPI3 23
+ PATA 24
+ SATA 25**
+ GPS 26*
+
+ VE 32
+ TVD 33
+ TVE0 34
+ TVE1 35
+ LCD0 36
+ LCD1 37
+
+ CSI0 40
+ CSI1 41
+
+ HDMI 43
+ DE_BE0 44
+ DE_BE1 45
+ DE_FE1 46
+ DE_FE1 47
+
+ MP 50
+
+ MALI400 52
+
+ * APB0 gates ("allwinner,sun4i-apb0-gates-clk")
+
+ CODEC 0
+ SPDIF 1*
+ AC97 2
+ IIS 3
+
+ PIO 5
+ IR0 6
+ IR1 7
+
+ KEYPAD 10
+
+ * APB1 gates ("allwinner,sun4i-apb1-gates-clk")
+
+ I2C0 0
+ I2C1 1
+ I2C2 2
+
+ CAN 4
+ SCR 5
+ PS20 6
+ PS21 7
+
+ UART0 16
+ UART1 17
+ UART2 18
+ UART3 19
+ UART4 20
+ UART5 21
+ UART6 22
+ UART7 23
+
+Notation:
+ [*]: The datasheet didn't mention these, but they are present on AW code
+ [**]: The datasheet had this marked as "NC" but they are used on AW code
diff --git a/Documentation/devicetree/bindings/clock/sunxi/sun5i-a13-gates.txt b/Documentation/devicetree/bindings/clock/sunxi/sun5i-a13-gates.txt
new file mode 100644
index 0000000..006b6df
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sunxi/sun5i-a13-gates.txt
@@ -0,0 +1,58 @@
+Gate clock outputs
+------------------
+
+ * AXI gates ("allwinner,sun4i-axi-gates-clk")
+
+ DRAM 0
+
+ * AHB gates ("allwinner,sun5i-a13-ahb-gates-clk")
+
+ USBOTG 0
+ EHCI 1
+ OHCI 2
+
+ SS 5
+ DMA 6
+ BIST 7
+ MMC0 8
+ MMC1 9
+ MMC2 10
+
+ NAND 13
+ SDRAM 14
+
+ SPI0 20
+ SPI1 21
+ SPI2 22
+
+ STIMER 28
+
+ VE 32
+
+ LCD 36
+
+ CSI 40
+
+ DE_BE 44
+
+ DE_FE 46
+
+ IEP 51
+ MALI400 52
+
+ * APB0 gates ("allwinner,sun5i-a13-apb0-gates-clk")
+
+ CODEC 0
+
+ PIO 5
+ IR 6
+
+ * APB1 gates ("allwinner,sun5i-a13-apb1-gates-clk")
+
+ I2C0 0
+ I2C1 1
+ I2C2 2
+
+ UART1 17
+
+ UART3 19
diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index 8492ad1..930d36f 100644
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -333,22 +333,34 @@ struct gates_data {
DECLARE_BITMAP(mask, SUNXI_GATES_MAX_SIZE);
};
-static const __initconst struct gates_data axi_gates_data = {
+static const __initconst struct gates_data sun4i_axi_gates_data = {
.mask = {1},
};
-static const __initconst struct gates_data ahb_gates_data = {
+static const __initconst struct gates_data sun4i_ahb_gates_data = {
.mask = {0x7F77FFF, 0x14FB3F},
};
-static const __initconst struct gates_data apb0_gates_data = {
+static const __initconst struct gates_data sun5i_a13_ahb_gates_data = {
+ .mask = {0x107067e7, 0x185111},
+};
+
+static const __initconst struct gates_data sun4i_apb0_gates_data = {
.mask = {0x4EF},
};
-static const __initconst struct gates_data apb1_gates_data = {
+static const __initconst struct gates_data sun5i_a13_apb0_gates_data = {
+ .mask = {0x61},
+};
+
+static const __initconst struct gates_data sun4i_apb1_gates_data = {
.mask = {0xFF00F7},
};
+static const __initconst struct gates_data sun5i_a13_apb1_gates_data = {
+ .mask = {0xa0007},
+};
+
static void __init sunxi_gates_clk_setup(struct device_node *node,
struct gates_data *data)
{
@@ -428,10 +440,13 @@ static const __initconst struct of_device_id clk_mux_match[] = {
/* Matches for gate clocks */
static const __initconst struct of_device_id clk_gates_match[] = {
- {.compatible = "allwinner,sun4i-axi-gates-clk", .data = &axi_gates_data,},
- {.compatible = "allwinner,sun4i-ahb-gates-clk", .data = &ahb_gates_data,},
- {.compatible = "allwinner,sun4i-apb0-gates-clk", .data = &apb0_gates_data,},
- {.compatible = "allwinner,sun4i-apb1-gates-clk", .data = &apb1_gates_data,},
+ {.compatible = "allwinner,sun4i-axi-gates-clk", .data = &sun4i_axi_gates_data,},
+ {.compatible = "allwinner,sun4i-ahb-gates-clk", .data = &sun4i_ahb_gates_data,},
+ {.compatible = "allwinner,sun5i-a13-ahb-gates-clk", .data = &sun5i_a13_ahb_gates_data,},
+ {.compatible = "allwinner,sun4i-apb0-gates-clk", .data = &sun4i_apb0_gates_data,},
+ {.compatible = "allwinner,sun5i-a13-apb0-gates-clk", .data = &sun5i_a13_apb0_gates_data,},
+ {.compatible = "allwinner,sun4i-apb1-gates-clk", .data = &sun4i_apb1_gates_data,},
+ {.compatible = "allwinner,sun5i-a13-apb1-gates-clk", .data = &sun5i_a13_apb1_gates_data,},
{}
};
--
1.8.1.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists