ARM: sti: Add STiH415 SOC support

The STiH415 is the next generation of HD, AVC set-top box processors for
satellite, cable, terrestrial and IP-STB markets. It is an ARM Cortex-A9
1.0 GHz, dual-core CPU.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
CC: Stephen Gallimore <stephen.gallimore@st.com>
CC: Stuart Menefy <stuart.menefy@st.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

5 files changed, 502 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/st-pincfg.h b/arch/arm/boot/dts/st-pincfg.h
new file mode 100644
index 000000000000..8c45d85ac13e
--- /dev/null
+++ b/arch/arm/boot/dts/st-pincfg.h
@@ -0,0 +1,71 @@
+#ifndef _ST_PINCFG_H_
+#define _ST_PINCFG_H_
+
+/* Alternate functions */
+#define ALT1	1
+#define ALT2	2
+#define ALT3	3
+#define ALT4	4
+#define ALT5	5
+#define ALT6	6
+#define ALT7	7
+
+/* Output enable */
+#define OE			(1 << 27)
+/* Pull Up */
+#define PU			(1 << 26)
+/* Open Drain */
+#define OD			(1 << 26)
+#define RT			(1 << 23)
+#define INVERTCLK		(1 << 22)
+#define CLKNOTDATA		(1 << 21)
+#define DOUBLE_EDGE		(1 << 20)
+#define CLK_A			(0 << 18)
+#define CLK_B			(1 << 18)
+#define CLK_C			(2 << 18)
+#define CLK_D			(3 << 18)
+
+/* User-frendly defines for Pin Direction */
+		/* oe = 0, pu = 0, od = 0 */
+#define IN			(0)
+		/* oe = 0, pu = 1, od = 0 */
+#define IN_PU			(PU)
+		/* oe = 1, pu = 0, od = 0 */
+#define OUT			(OE)
+		/* oe = 1, pu = 0, od = 1 */
+#define BIDIR			(OE | OD)
+		/* oe = 1, pu = 1, od = 1 */
+#define BIDIR_PU		(OE | PU | OD)
+
+/* RETIME_TYPE */
+/*
+ * B Mode
+ * Bypass retime with optional delay parameter
+ */
+#define BYPASS		(0)
+/*
+ * R0, R1, R0D, R1D modes
+ * single-edge data non inverted clock, retime data with clk
+ */
+#define SE_NICLK_IO	(RT)
+/*
+ * RIV0, RIV1, RIV0D, RIV1D modes
+ * single-edge data inverted clock, retime data with clk
+ */
+#define SE_ICLK_IO	(RT | INVERTCLK)
+/*
+ * R0E, R1E, R0ED, R1ED modes
+ * double-edge data, retime data with clk
+ */
+#define DE_IO		(RT | DOUBLE_EDGE)
+/*
+ * CIV0, CIV1 modes with inverted clock
+ * Retiming the clk pins will park clock & reduce the noise within the core.
+ */
+#define ICLK		(RT | CLKNOTDATA | INVERTCLK)
+/*
+ * CLK0, CLK1 modes with non-inverted clock
+ * Retiming the clk pins will park clock & reduce the noise within the core.
+ */
+#define NICLK		(RT | CLKNOTDATA)
+#endif /* _ST_PINCFG_H_ */
diff --git a/arch/arm/boot/dts/stih415-clock.dtsi b/arch/arm/boot/dts/stih415-clock.dtsi
new file mode 100644
index 000000000000..174c799df741
--- /dev/null
+++ b/arch/arm/boot/dts/stih415-clock.dtsi
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2013 STMicroelectronics (R&D) Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/ {
+	clocks {
+		/*
+		 * Fixed 30MHz oscillator input to SoC
+		 */
+		CLK_SYSIN: CLK_SYSIN {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <30000000>;
+		};
+
+		/*
+		 * ARM Peripheral clock for timers
+		 */
+		arm_periph_clk: arm_periph_clk {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <500000000>;
+		};
+
+		/*
+		 * Bootloader initialized system infrastructure clock for
+		 * serial devices.
+		 */
+		CLKS_ICN_REG_0: CLKS_ICN_REG_0 {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <100000000>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/stih415-pinctrl.dtsi b/arch/arm/boot/dts/stih415-pinctrl.dtsi
new file mode 100644
index 000000000000..1d322b24d1e4
--- /dev/null
+++ b/arch/arm/boot/dts/stih415-pinctrl.dtsi
@@ -0,0 +1,268 @@
+/*
+ * Copyright (C) 2013 STMicroelectronics (R&D) Limited.
+ * Author: Srinivas Kandagatla <srinivas.kandagatla@st.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * publishhed by the Free Software Foundation.
+ */
+#include "st-pincfg.h"
+/ {
+
+	aliases {
+		gpio0	= &PIO0;
+		gpio1	= &PIO1;
+		gpio2	= &PIO2;
+		gpio3	= &PIO3;
+		gpio4	= &PIO4;
+		gpio5	= &PIO5;
+		gpio6	= &PIO6;
+		gpio7	= &PIO7;
+		gpio8	= &PIO8;
+		gpio9	= &PIO9;
+		gpio10	= &PIO10;
+		gpio11	= &PIO11;
+		gpio12	= &PIO12;
+		gpio13	= &PIO13;
+		gpio14	= &PIO14;
+		gpio15	= &PIO15;
+		gpio16	= &PIO16;
+		gpio17	= &PIO17;
+		gpio18	= &PIO18;
+		gpio19	= &PIO100;
+		gpio20	= &PIO101;
+		gpio21	= &PIO102;
+		gpio22	= &PIO103;
+		gpio23	= &PIO104;
+		gpio24	= &PIO105;
+		gpio25	= &PIO106;
+		gpio26	= &PIO107;
+	};
+
+	soc {
+		pin-controller-sbc {
+			#address-cells	= <1>;
+			#size-cells	= <1>;
+			compatible	= "st,stih415-sbc-pinctrl";
+			st,syscfg	= <&syscfg_sbc>;
+			ranges 		= <0 0xfe610000 0x5000>;
+
+			PIO0: gpio@fe610000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0 0x100>;
+				st,bank-name	= "PIO0";
+			};
+			PIO1: gpio@fe611000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x1000 0x100>;
+				st,bank-name	= "PIO1";
+			};
+			PIO2: gpio@fe612000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x2000 0x100>;
+				st,bank-name	= "PIO2";
+			};
+			PIO3: gpio@fe613000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x3000 0x100>;
+				st,bank-name	= "PIO3";
+			};
+			PIO4: gpio@fe614000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x4000 0x100>;
+				st,bank-name	= "PIO4";
+			};
+
+			sbc_serial1 {
+				pinctrl_sbc_serial1:sbc_serial1 {
+					st,pins {
+						tx	= <&PIO2 6 ALT3 OUT>;
+						rx	= <&PIO2 7 ALT3 IN>;
+					};
+				};
+			};
+		};
+
+		pin-controller-front {
+			#address-cells	= <1>;
+			#size-cells	= <1>;
+			compatible	= "st,stih415-front-pinctrl";
+			st,syscfg	= <&syscfg_front>;
+			ranges		= <0 0xfee00000 0x8000>;
+
+			PIO5: gpio@fee00000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0 0x100>;
+				st,bank-name	= "PIO5";
+			};
+			PIO6: gpio@fee01000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x1000 0x100>;
+				st,bank-name	= "PIO6";
+			};
+			PIO7: gpio@fee02000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x2000 0x100>;
+				st,bank-name	= "PIO7";
+			};
+			PIO8: gpio@fee03000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x3000 0x100>;
+				st,bank-name	= "PIO8";
+			};
+			PIO9: gpio@fee04000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x4000 0x100>;
+				st,bank-name	= "PIO9";
+			};
+			PIO10: gpio@fee05000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x5000 0x100>;
+				st,bank-name	= "PIO10";
+			};
+			PIO11: gpio@fee06000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x6000 0x100>;
+				st,bank-name	= "PIO11";
+			};
+			PIO12: gpio@fee07000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x7000 0x100>;
+				st,bank-name	= "PIO12";
+			};
+		};
+
+		pin-controller-rear {
+			#address-cells	= <1>;
+			#size-cells	= <1>;
+			compatible	= "st,stih415-rear-pinctrl";
+			st,syscfg	= <&syscfg_rear>;
+			ranges		= <0 0xfe820000 0x8000>;
+
+			PIO13: gpio@fe820000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0 0x100>;
+				st,bank-name	= "PIO13";
+			};
+			PIO14: gpio@fe821000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x1000 0x100>;
+				st,bank-name	= "PIO14";
+			};
+			PIO15: gpio@fe822000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x2000 0x100>;
+				st,bank-name	= "PIO15";
+			};
+			PIO16: gpio@fe823000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x3000 0x100>;
+				st,bank-name	= "PIO16";
+			};
+			PIO17: gpio@fe824000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x4000 0x100>;
+				st,bank-name	= "PIO17";
+			};
+			PIO18: gpio@fe825000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x5000 0x100>;
+				st,bank-name	= "PIO18";
+			};
+
+			serial2 {
+				pinctrl_serial2: serial2-0 {
+					st,pins {
+						tx	= <&PIO17 4 ALT2 OUT>;
+						rx	= <&PIO17 5 ALT2 IN>;
+					};
+				};
+			};
+		};
+
+		pin-controller-left {
+			#address-cells	= <1>;
+			#size-cells	= <1>;
+			compatible	= "st,stih415-left-pinctrl";
+			st,syscfg	= <&syscfg_left>;
+			ranges		= <0 0xfd6b0000 0x3000>;
+
+			PIO100: gpio@fd6b0000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0 0x100>;
+				st,bank-name	= "PIO100";
+			};
+			PIO101: gpio@fd6b1000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x1000 0x100>;
+				st,bank-name	= "PIO101";
+			};
+			PIO102: gpio@fd6b2000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x2000 0x100>;
+				st,bank-name	= "PIO102";
+			};
+		};
+
+		pin-controller-right {
+			#address-cells	= <1>;
+			#size-cells	= <1>;
+			compatible	= "st,stih415-right-pinctrl";
+			st,syscfg	= <&syscfg_right>;
+			ranges		= <0 0xfd330000 0x5000>;
+
+			PIO103: gpio@fd330000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0 0x100>;
+				st,bank-name	= "PIO103";
+			};
+			PIO104: gpio@fd331000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x1000 0x100>;
+				st,bank-name	= "PIO104";
+			};
+			PIO105: gpio@fd332000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x2000 0x100>;
+				st,bank-name	= "PIO105";
+			};
+			PIO106: gpio@fd333000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x3000 0x100>;
+				st,bank-name	= "PIO106";
+			};
+			PIO107: gpio@fd334000 {
+				gpio-controller;
+				#gpio-cells	= <1>;
+				reg		= <0x4000 0x100>;
+				st,bank-name	= "PIO107";
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/stih415.dtsi b/arch/arm/boot/dts/stih415.dtsi
new file mode 100644
index 000000000000..74ab8ded4b49
--- /dev/null
+++ b/arch/arm/boot/dts/stih415.dtsi
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2013 STMicroelectronics (R&D) Limited.
+ * Author: Srinivas Kandagatla <srinivas.kandagatla@st.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * publishhed by the Free Software Foundation.
+ */
+#include "stih41x.dtsi"
+#include "stih415-clock.dtsi"
+#include "stih415-pinctrl.dtsi"
+/ {
+
+	L2: cache-controller {
+		compatible = "arm,pl310-cache";
+		reg = <0xfffe2000 0x1000>;
+		arm,data-latency = <3 2 2>;
+		arm,tag-latency = <1 1 1>;
+		cache-unified;
+		cache-level = <2>;
+	};
+
+	soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		interrupt-parent = <&intc>;
+		ranges;
+		compatible	= "simple-bus";
+
+		syscfg_sbc: sbc-syscfg@fe600000{
+			compatible      = "st,stih415-sbc-syscfg", "syscon";
+			reg		= <0xfe600000 0xb4>;
+		};
+
+		syscfg_front: front-syscfg@fee10000{
+			compatible      = "st,stih415-front-syscfg", "syscon";
+			reg		= <0xfee10000 0x194>;
+		};
+
+		syscfg_rear: rear-syscfg@fe830000{
+			compatible      = "st,stih415-rear-syscfg", "syscon";
+			reg		= <0xfe830000 0x190>;
+		};
+
+		/* MPE syscfgs */
+		syscfg_left: left-syscfg@fd690000{
+			compatible      = "st,stih415-left-syscfg", "syscon";
+			reg		= <0xfd690000 0x78>;
+		};
+
+		syscfg_right: right-syscfg@fd320000{
+			compatible      = "st,stih415-right-syscfg", "syscon";
+			reg		= <0xfd320000 0x180>;
+		};
+
+		syscfg_system: system-syscfg@fdde0000  {
+			compatible      = "st,stih415-system-syscfg", "syscon";
+			reg		= <0xfdde0000 0x15c>;
+		};
+
+		syscfg_lpm: lpm-syscfg@fe4b5100{
+			compatible      = "st,stih415-lpm-syscfg", "syscon";
+			reg		= <0xfe4b5100 0x08>;
+		};
+
+		serial2: serial@fed32000 {
+			compatible	= "st,asc";
+			status 		= "disabled";
+			reg		= <0xfed32000 0x2c>;
+			interrupts	= <0 197 0>;
+			pinctrl-names 	= "default";
+			pinctrl-0 	= <&pinctrl_serial2>;
+			clocks		= <&CLKS_ICN_REG_0>;
+		};
+
+		/* SBC comms block ASCs in SASG1 */
+		sbc_serial1: serial@fe531000 {
+			compatible	= "st,asc";
+			status 		= "disabled";
+			reg		= <0xfe531000 0x2c>;
+			interrupts	= <0 210 0>;
+			clocks		= <&CLK_SYSIN>;
+			pinctrl-names 	= "default";
+			pinctrl-0	= <&pinctrl_sbc_serial1>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/stih41x.dtsi b/arch/arm/boot/dts/stih41x.dtsi
new file mode 100644
index 000000000000..7321403cab8a
--- /dev/null
+++ b/arch/arm/boot/dts/stih41x.dtsi
@@ -0,0 +1,38 @@
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		cpu@0 {
+			compatible = "arm,cortex-a9";
+			reg = <0>;
+		};
+		cpu@1 {
+			compatible = "arm,cortex-a9";
+			reg = <1>;
+		};
+	};
+
+	intc: interrupt-controller@fffe1000 {
+		compatible = "arm,cortex-a9-gic";
+		#interrupt-cells = <3>;
+		interrupt-controller;
+		reg = <0xfffe1000 0x1000>,
+		      <0xfffe0100 0x100>;
+	};
+
+	scu@fffe0000 {
+		compatible = "arm,cortex-a9-scu";
+		reg = <0xfffe0000 0x1000>;
+	};
+
+	timer@fffe0200 {
+		interrupt-parent = <&intc>;
+		compatible = "arm,cortex-a9-global-timer";
+		reg = <0xfffe0200 0x100>;
+		interrupts = <1 11 0x04>;
+		clocks = <&arm_periph_clk>;
+	};
+};