Subject: Re: [PATCH] TurboStation support (Properly)

From: Øyvind Repvik <[email-masked]>
Date: Tue, 8 May 2007 23:56:01 +0200

On Sunday 06 May 2007 14:46:05 Øyvind Repvik wrote:
> Hi,
> 
> 	This patch adds support for the QNAP TurboStation TS-101 and TS-201 devices. 

Of course, it probably helps if my mail client doesn't break the patch completely.

Signed-off-by: Øyvind Repvik <[email-masked]> 
Signed-off-by: Alessandro Zummo <[email-masked]>

--- linux-2.6.21.1/arch/powerpc/boot/dts/qnap-ts101.dts	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.21.1.ts/arch/powerpc/boot/dts/qnap-ts101.dts	2007-05-03 22:44:59.000000000 +0200
@@ -0,0 +1,166 @@
+/*
+ * Device Tree Souce for QNAP Turbostation 101/201
+ *
+ * Choose CONFIG_TURBOSTATION to build a kernel for turbostation
+ * 
+ *
+ * Based on kuroboxHD.dts by G. Liakhovetski
+ *
+ * 2007 (c) Oyvind Repvik <[email-masked]>
+ *
+ * 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.
+ *
+ * build with: "dtc -f -I dts -O dtb -o qnap-ts101.dtb -V 16 qnap-ts101.dts"
+ *
+ *
+ */
+
+/ {
+	linux,phandle = <1000>;
+	model = "TurboStation TSx01";
+	compatible = "turbostation";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		linux,phandle = <2000>;
+		#cpus = <1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		PowerPC,603e { /* Really 8241 */
+			linux,phandle = <2100>;
+			device_type = "cpu";
+			reg = <0>;
+			clock-frequency = <fdad680>;	/* 266 MHz */
+			timebase-frequency = <1fca055>;	/* 33.3333333 MHz */
+			bus-frequency = <0>;
+			/* Following required by dtc but not used */
+			i-cache-line-size = <0>;
+			d-cache-line-size = <0>;
+			i-cache-size = <4000>;
+			d-cache-size = <4000>;
+		};
+	};
+
+	/* 64MB @ 0x0 */
+	memory {
+		linux,phandle = <3000>;
+		device_type = "memory";
+		reg = <00000000 04000000>;
+	};
+
+	flash@ff000000 {
+		linux,phandle = <3100>;
+		device_type = "rom";
+		compatible = "direct-mapped";
+		probe-type = "CFI";
+		reg = <ff000000 01000000>;
+		bank-width = <1>;
+		partitions = <
+				00000000 00200000
+				00200000 00d00000
+				00f00000 00040001
+				00f40000 00020000
+				00f60000 00040000
+				00fa0000 00020000
+				00fc0000 00040000
+		>;
+		partition-names = "kernel\0rootfs\0uboot1\0uboot1-env\0uboot2\0uboot2-env\0SysConf";
+	};
+
+
+	soc10x { /* AFAICT need to make soc for 8245's uarts to be defined */
+		linux,phandle = <4000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		#interrupt-cells = <2>;
+		device_type = "soc";
+		compatible = "mpc10x";
+		store-gathering = <0>; /* 0 == off, !0 == on */
+		reg = <80000000 00100000>;
+		ranges = <80000000 80000000 70000000	/* pci mem space */
+			  fc000000 fc000000 00100000	/* EUMB */
+			  fe000000 fe000000 00c00000	/* pci i/o space */
+			  fec00000 fec00000 00300000	/* pci cfg regs */
+			  fef00000 fef00000 00100000>;	/* pci iack */
+
+		i2c@fc003000 {
+			linux,phandle = <4300>;
+			device_type = "i2c";
+			compatible = "fsl-i2c";
+			reg = <fc003000 1000>;
+			interrupts = <5 2>;
+			interrupt-parent = <4400>;
+		};
+
+		serial@fc004500 {
+			linux,phandle = <4511>;
+			device_type = "serial";
+			compatible = "ns16550";
+			reg = <fc004500 8>;
+			clock-frequency = <7ed6b40>;	/* 133 MHz */
+			current-speed = <1c200>;	/* 115200 */
+			interrupts = <9 2>;
+			interrupt-parent = <4400>;
+		};
+
+		serial@fc004600 {
+			linux,phandle = <4512>;
+			device_type = "serial";
+			compatible = "ns16550";
+			reg = <fc004600 8>;
+			clock-frequency = <7ed6b40>;
+			current-speed = <4b00>;		/* 19200 */
+			interrupts = <a 2>;
+			interrupt-parent = <4400>;
+		};
+
+		pic@fc040000 {
+			linux,phandle = <4400>;
+			#interrupt-cells = <2>;
+			#address-cells = <0>;
+			device_type = "open-pic";
+			compatible = "chrp,open-pic";
+			interrupt-controller;
+			reg = <fc040000 40000>;
+			built-in;
+		};
+
+		pci@fe800000 {
+			linux,phandle = <4500>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			device_type = "pci";
+			compatible = "mpc10x-pci";
+			reg = <fc000000 400000>;
+			ranges = <01000000 0        0 fe000000 0 00c00000
+				  02000000 0 80000000 80000000 0 70000000>;
+			bus-range = <0 ff>;
+			clock-frequency = <7ed6b40>;	/* 133 MHz */
+			interrupt-parent = <4400>;
+			interrupt-map-mask = <f800 0 0 7>;
+			interrupt-map = <
+				/* IDSEL 0x13 - SATA*/
+				6800 0 0 1 4400 0 1
+				6800 0 0 2 4400 0 1
+				6800 0 0 3 4400 0 1
+				6800 0 0 4 4400 0 1
+				/* IDSEL 0x14 - USB */
+				7000 0 0 1 4400 1 1
+				7000 0 0 2 4400 1 1
+				7000 0 0 3 4400 1 1
+				7000 0 0 4 4400 1 1
+				/* IDSEL 0x15 - ETH */
+				7800 0 0 1 4400 2 1
+				7800 0 0 2 4400 2 1
+				7800 0 0 3 4400 2 1
+				7800 0 0 4 4400 2 1
+			>;
+		};
+	};
+};
Binary files linux-2.6.21.1/arch/powerpc/boot/dts/storcenter.dtb and linux-2.6.21.1.ts/arch/powerpc/boot/dts/storcenter.dtb differ
--- linux-2.6.21.1/arch/powerpc/platforms/embedded6xx/Kconfig	2007-04-27 23:49:26.000000000 +0200
+++ linux-2.6.21.1.ts/arch/powerpc/platforms/embedded6xx/Kconfig	2007-05-06 14:31:55.000000000 +0200
@@ -87,6 +87,13 @@
 	  Linkstation-I HD-HLAN and HD-HGLAN versions, and PPC-based
 	  Terastation systems should be supported too.
 
+config TURBOSTATION
+	bool "QNap TS-101/TS-102 TurboStation"
+	select MPIC
+	select FSL_SOC
+	select PPC_UDBG_16550 if SERIAL_8250
+	select DEFAULT_UIMAGE
+
 config MPC7448HPC2
 	bool "Freescale MPC7448HPC2(Taiga)"
 	select TSI108_BRIDGE
@@ -200,7 +207,7 @@
 	depends on SANDPOINT || SPRUCE || PPLUS || \
 		PRPMC750 || PRPMC800 || LOPEC || \
 		(EV64260 && !SERIAL_MPSC) || CHESTNUT || RADSTONE_PPC7D || \
-		83xx || LINKSTATION
+		83xx || LINKSTATION || TURBOSTATION 
 	default y
 
 config FORCE
@@ -274,13 +281,15 @@
 
 config MPC10X_BRIDGE
 	bool
-	depends on POWERPMC250 || LOPEC || SANDPOINT || LINKSTATION
+	depends on POWERPMC250 || LOPEC || SANDPOINT || LINKSTATION || \
+	TURBOSTATION 
 	select PPC_INDIRECT_PCI
 	default y
 
 config MPC10X_OPENPIC
 	bool
-	depends on POWERPMC250 || LOPEC || SANDPOINT || LINKSTATION
+	depends on POWERPMC250 || LOPEC || SANDPOINT || LINKSTATION || \
+	TURBOSTATION 
 	default y
 
 config MPC10X_STORE_GATHERING
--- linux-2.6.21.1/arch/powerpc/platforms/embedded6xx/Makefile	2007-04-27 23:49:26.000000000 +0200
+++ linux-2.6.21.1.ts/arch/powerpc/platforms/embedded6xx/Makefile	2007-05-06 14:30:58.000000000 +0200
@@ -3,3 +3,4 @@
 #
 obj-$(CONFIG_MPC7448HPC2)	+= mpc7448_hpc2.o
 obj-$(CONFIG_LINKSTATION)	+= linkstation.o ls_uart.o
+obj-$(CONFIG_TURBOSTATION)	+= turbostation.o
--- linux-2.6.21.1/arch/powerpc/platforms/embedded6xx/turbostation.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.21.1.ts/arch/powerpc/platforms/embedded6xx/turbostation.c	2007-05-03 22:45:03.000000000 +0200
@@ -0,0 +1,141 @@
+/*
+ * Board setup routines for the QNAP Turbostation platform (TS-101/TS-201)
+ *
+ * Copyright (C) 2007 Oyvind Repvik ([email-masked])
+ *
+ * Based on linkstation.c by G. Liakhovetski
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/initrd.h>
+#include <linux/mtd/physmap.h>
+
+#include <asm/time.h>
+#include <asm/prom.h>
+#include <asm/mpic.h>
+#include <asm/mpc10x.h>
+#include <asm/pci-bridge.h>
+
+static int __init add_bridge(struct device_node *dev)
+{
+	int len;
+	struct pci_controller *hose;
+	int *bus_range;
+
+	printk("Adding PCI host bridge %s\n", dev->full_name);
+
+	bus_range = (int *) get_property(dev, "bus-range", &len);
+	if (bus_range == NULL || len < 2 * sizeof(int))
+		printk(KERN_WARNING "Can't get bus-range for %s, assume"
+				" bus 0\n", dev->full_name);
+
+	hose = pcibios_alloc_controller();
+	if (hose == NULL)
+		return -ENOMEM;
+	hose->first_busno = bus_range ? bus_range[0] : 0;
+	hose->last_busno = bus_range ? bus_range[1] : 0xff;
+	hose->arch_data = dev;
+	setup_indirect_pci(hose, 0xfec00000, 0xfee00000);
+
+	/* Interpret the "ranges" property */
+	/* This also maps the I/O region and sets isa_io/mem_base */
+	pci_process_bridge_OF_ranges(hose, dev, 1);
+
+	return 0;
+}
+
+static void __init turbostation_setup_arch(void)
+{
+	struct device_node *np;
+
+	/* Lookup PCI host bridges */
+	for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
+		add_bridge(np);
+
+	printk(KERN_INFO "QNAP Turbostation series\n");
+}
+
+/*
+ * Interrupt setup and service.  Interrrupts on the turbostation come
+ * from the four PCI slots plus onboard 8241 devices: I2C, DUART.
+ */
+static void __init turbostation_init_IRQ(void)
+{
+	struct mpic *mpic;
+	struct device_node *dnp;
+	void *prop;
+	int size;
+	phys_addr_t paddr;
+
+	dnp = of_find_node_by_type(NULL, "open-pic");
+	if (dnp == NULL)
+		return;
+
+	prop = (struct device_node *)get_property(dnp, "reg", &size);
+	paddr = (phys_addr_t)of_translate_address(dnp, prop);
+
+	mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET,
+			4, 32, " EPIC     ");
+	BUG_ON(mpic == NULL);
+
+	/* PCI IRQs */
+	mpic_assign_isu(mpic, 0, paddr + 0x10200);
+
+	/* I2C */
+	mpic_assign_isu(mpic, 1, paddr + 0x11000);
+
+	/* ttyS0, ttyS1 */
+	mpic_assign_isu(mpic, 2, paddr + 0x11100);
+
+	mpic_init(mpic);
+}
+
+static void turbostation_restart(char *cmd)
+{
+	/* Insert restart-stuff */
+}
+
+static void turbostation_power_off(void)
+{
+	/* Insert powerdown-stuff */
+}
+
+static void turbostation_halt(void)
+{
+	turbostation_power_off();
+}
+
+static void turbostation_show_cpuinfo(struct seq_file *m)
+{
+	seq_printf(m, "vendor\t\t: QNAP Systems Inc.\n");
+	seq_printf(m, "machine\t\t: Turbostation TS-101/TS-201\n");
+}
+
+static int __init turbostation_probe(void)
+{
+	unsigned long root;
+
+	root = of_get_flat_dt_root();
+
+	if (!of_flat_dt_is_compatible(root, "turbostation"))
+		return 0;
+	return 1;
+}
+
+define_machine(turbostation){
+	.name 			= "QNAP Turbostation",
+	.probe 			= turbostation_probe,
+	.setup_arch 		= turbostation_setup_arch,
+	.init_IRQ 		= turbostation_init_IRQ,
+	.show_cpuinfo 		= turbostation_show_cpuinfo,
+	.get_irq 		= mpic_get_irq,
+	.restart 		= turbostation_restart,
+	.power_off 		= turbostation_power_off,
+	.halt	 		= turbostation_halt,
+	.calibrate_decr 	= generic_calibrate_decr,
+};