AMCC PPC 460SX redwood SoC platform initial framework

This patch contains initial framework for the AMCC Redwood board.
Signed-off-by: NMadhulika Madishetty <mmadishetty@amcc.com>
Signed-off-by: NTirumala Marri <tmarri@amcc.com>
Signed-off-by: NFeng Kan <fkan@amcc.com>
Signed-off-by: NVidhyananth Venkatasamy <vvenkatasamy@amcc.com>
Signed-off-by: NPreetesh Parekh <pparekh@amcc.com>
Acked-by: NLoc Ho <lho@amcc.com>
Acked-by: NFeng Kan <fkan@amcc.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

arch/powerpc/boot/dts/redwood.dts

+/*
+ * Device Tree Source for AMCC Redwood(460SX)
+ *
+ * Copyright 2008 AMCC <tmarri@amcc.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without
+ * any warranty of any kind, whether express or implied.
+ */
+
+/dts-v1/;
+
+/ {
+	#address-cells = <2>;
+	#size-cells = <1>;
+	model = "amcc,redwood";
+	compatible = "amcc,redwood";
+	dcr-parent = <&{/cpus/cpu@0}>;
+
+	aliases {
+		ethernet0 = &EMAC0;
+		serial0 = &UART0;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			model = "PowerPC,460SX";
+			reg = <0x00000000>;
+			clock-frequency = <0>; /* Filled in by U-Boot */
+			timebase-frequency = <0>; /* Filled in by U-Boot */
+			i-cache-line-size = <32>;
+			d-cache-line-size = <32>;
+			i-cache-size = <32768>;
+			d-cache-size = <32768>;
+			dcr-controller;
+			dcr-access-method = "native";
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x00000000 0x00000000>; /* Filled in by U-Boot */
+	};
+
+	UIC0: interrupt-controller0 {
+		compatible = "ibm,uic-460sx","ibm,uic";
+		interrupt-controller;
+		cell-index = <0>;
+		dcr-reg = <0x0c0 0x009>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+		#interrupt-cells = <2>;
+	};
+
+	UIC1: interrupt-controller1 {
+		compatible = "ibm,uic-460sx","ibm,uic";
+		interrupt-controller;
+		cell-index = <1>;
+		dcr-reg = <0x0d0 0x009>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+		#interrupt-cells = <2>;
+		interrupts = <0x1e 0x4 0x1f 0x4>; /* cascade */
+		interrupt-parent = <&UIC0>;
+	};
+
+	UIC2: interrupt-controller2 {
+		compatible = "ibm,uic-460sx","ibm,uic";
+		interrupt-controller;
+		cell-index = <2>;
+		dcr-reg = <0x0e0 0x009>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+		#interrupt-cells = <2>;
+		interrupts = <0xa 0x4 0xb 0x4>; /* cascade */
+		interrupt-parent = <&UIC0>;
+	};
+
+	UIC3: interrupt-controller3 {
+		compatible = "ibm,uic-460sx","ibm,uic";
+		interrupt-controller;
+		cell-index = <3>;
+		dcr-reg = <0x0f0 0x009>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+		#interrupt-cells = <2>;
+		interrupts = <0x10 0x4 0x11 0x4>; /* cascade */
+		interrupt-parent = <&UIC0>;
+	};
+
+	SDR0: sdr {
+		compatible = "ibm,sdr-460sx";
+		dcr-reg = <0x00e 0x002>;
+	};
+
+	CPR0: cpr {
+		compatible = "ibm,cpr-460sx";
+		dcr-reg = <0x00c 0x002>;
+	};
+
+	plb {
+		compatible = "ibm,plb-460sx", "ibm,plb4";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges;
+		clock-frequency = <0>; /* Filled in by U-Boot */
+
+		SDRAM0: sdram {
+			compatible = "ibm,sdram-460sx", "ibm,sdram-405gp";
+			dcr-reg = <0x010 0x002>;
+		};
+
+		MAL0: mcmal {
+			compatible = "ibm,mcmal-460sx", "ibm,mcmal2";
+			dcr-reg = <0x180 0x62>;
+			num-tx-chans = <4>;
+			num-rx-chans = <32>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			interrupt-parent = <&UIC1>;
+			interrupts = <	/*TXEOB*/ 0x6 0x4
+					/*RXEOB*/ 0x7 0x4
+					/*SERR*/  0x1 0x4
+					/*TXDE*/  0x2 0x4
+					/*RXDE*/  0x3 0x4
+					/*COAL TX0*/ 0x18 0x2
+					/*COAL TX1*/ 0x19 0x2
+					/*COAL TX2*/ 0x1a 0x2
+					/*COAL TX3*/ 0x1b 0x2
+					/*COAL RX0*/ 0x1c 0x2
+					/*COAL RX1*/ 0x1d 0x2
+					/*COAL RX2*/ 0x1e 0x2
+					/*COAL RX3*/ 0x1f 0x2>;
+		};
+
+		POB0: opb {
+			compatible = "ibm,opb-460sx", "ibm,opb";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0xb0000000 0x00000004 0xb0000000 0x50000000>;
+			clock-frequency = <0>; /* Filled in by U-Boot */
+
+			EBC0: ebc {
+				compatible = "ibm,ebc-460sx", "ibm,ebc";
+				dcr-reg = <0x012 0x002>;
+				#address-cells = <2>;
+				#size-cells = <1>;
+				clock-frequency = <0>; /* Filled in by U-Boot */
+				/* ranges property is supplied by U-Boot */
+				interrupts = <0x6 0x4>;
+				interrupt-parent = <&UIC1>;
+
+				nor_flash@0,0 {
+					compatible = "amd,s29gl512n", "cfi-flash";
+					bank-width = <2>;
+					reg = <0x0000000 0x00000000 0x04000000>;
+					#address-cells = <1>;
+					#size-cells = <1>;
+					partition@0 {
+						label = "kernel";
+						reg = <0x00000000 0x001e0000>;
+					};
+					partition@1e0000 {
+						label = "dtb";
+						reg = <0x001e0000 0x00020000>;
+					};
+					partition@200000 {
+						label = "ramdisk";
+						reg = <0x00200000 0x01400000>;
+					};
+					partition@1600000 {
+						label = "jffs2";
+						reg = <0x01600000 0x00400000>;
+					};
+					partition@1a00000 {
+						label = "user";
+						reg = <0x01a00000 0x02560000>;
+					};
+					partition@3f60000 {
+						label = "env";
+						reg = <0x03f60000 0x00040000>;
+					};
+					partition@3fa0000 {
+						label = "u-boot";
+						reg = <0x03fa0000 0x00060000>;
+					};
+				};
+			};
+
+			UART0: serial@ef600200 {
+				device_type = "serial";
+				compatible = "ns16550";
+				reg = <0xef600200 0x00000008>;
+				virtual-reg = <0xef600200>;
+				clock-frequency = <0>; /* Filled in by U-Boot */
+				current-speed = <0>; /* Filled in by U-Boot */
+				interrupt-parent = <&UIC0>;
+				interrupts = <0x0 0x4>;
+			};
+
+			RGMII0: emac-rgmii@ef600900 {
+				compatible = "ibm,rgmii-460sx", "ibm,rgmii";
+				reg = <0xef600900 0x00000008>;
+			};
+
+			EMAC0: ethernet@ef600a00 {
+				device_type = "network";
+				compatible = "ibm,emac-460sx", "ibm,emac4";
+				interrupt-parent = <&EMAC0>;
+				interrupts = <0x0 0x1>;
+				#interrupt-cells = <1>;
+				#address-cells = <0>;
+				#size-cells = <0>;
+				interrupt-map = </*Status*/ 0x0 &UIC0 0x13 0x4
+						 /*Wake*/   0x1 &UIC2 0x1d 0x4>;
+				reg = <0xef600a00 0x00000070>;
+				local-mac-address = [000000000000]; /* Filled in by U-Boot */
+				mal-device = <&MAL0>;
+				mal-tx-channel = <0>;
+				mal-rx-channel = <0>;
+				cell-index = <0>;
+				max-frame-size = <9000>;
+				rx-fifo-size = <4096>;
+				tx-fifo-size = <2048>;
+				phy-mode = "rgmii";
+				phy-map = <0x00000000>;
+				rgmii-device = <&RGMII0>;
+				rgmii-channel = <0>;
+				has-inverted-stacr-oc;
+				has-new-stacr-staopc;
+			};
+
+		};
+
+	};
+	chosen {
+		linux,stdout-path = "/plb/opb/serial@ef600200";
+	};
+
+};

arch/powerpc/kernel/cpu_setup_44x.S

@@ -34,6 +34,7 @@ _GLOBAL(__setup_cpu_440grx)
 	blr
 _GLOBAL(__setup_cpu_460ex)
 _GLOBAL(__setup_cpu_460gt)
+_GLOBAL(__setup_cpu_460sx)
 	mflr	r4
 	bl	__init_fpu_44x
 	bl	__fixup_440A_mcheck

arch/powerpc/kernel/cputable.c

@@ -47,6 +47,7 @@ extern void __setup_cpu_440spe(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_440x5(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_460ex(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_460gt(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_460sx(unsigned long offset, struct cpu_spec *spec);
 extern void __setup_cpu_603(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_604(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_750(unsigned long offset, struct cpu_spec* spec);
@@ -1638,6 +1639,19 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.machine_check		= machine_check_440A,
 		.platform		= "ppc440",
 	},
+	{ /* 460SX */
+		.pvr_mask		= 0xffffff00,
+		.pvr_value		= 0x13541800,
+		.cpu_name		= "460SX",
+		.cpu_features		= CPU_FTRS_44X,
+		.cpu_user_features	= COMMON_USER_BOOKE,
+		.mmu_features		= MMU_FTR_TYPE_44x,
+		.icache_bsize		= 32,
+		.dcache_bsize		= 32,
+		.cpu_setup		= __setup_cpu_460sx,
+		.machine_check		= machine_check_440A,
+		.platform		= "ppc440",
+	},
 	{	/* default match */
 		.pvr_mask		= 0x00000000,
 		.pvr_value		= 0x00000000,

arch/powerpc/platforms/44x/Kconfig

@@ -118,6 +118,17 @@ config GLACIER
 	help
 	  This option enables support for the AMCC PPC460GT evaluation board.
 
+config REDWOOD
+	bool "Redwood"
+	depends on 44x
+	default n
+	select PPC44x_SIMPLE
+	select 460SX
+	select PCI
+	select PPC4xx_PCI_EXPRESS
+	help
+	  This option enables support for the AMCC PPC460SX Redwood board.
+
 config YOSEMITE
 	bool "Yosemite"
 	depends on 44x
@@ -220,6 +231,14 @@ config 460EX
 	select IBM_NEW_EMAC_EMAC4
 	select IBM_NEW_EMAC_TAH
 
+config 460SX
+	bool
+	select PPC_FPU
+	select IBM_NEW_EMAC_EMAC4
+	select IBM_NEW_EMAC_RGMII
+	select IBM_NEW_EMAC_ZMII
+	select IBM_NEW_EMAC_TAH
+
 # 44x errata/workaround config symbols, selected by the CPU models above
 config IBM440EP_ERR42
 	bool

arch/powerpc/platforms/44x/ppc44x_simple.c

@@ -57,6 +57,7 @@ static char *board[] __initdata = {
 	"ibm,ebony",
 	"amcc,katmai",
 	"amcc,rainier",
+	"amcc,redwood",
 	"amcc,sequoia",
 	"amcc,taishan",
 	"amcc,yosemite"