[PATCH] add a simple 405EP based board
Markus Brunner
super.firetwister at googlemail.com
Thu Aug 21 18:07:58 EST 2008
This adds support for a simple ppc405ep board.
At the moment, there are no 405ep boards in arch/powerpc, so this can be used as a template
for new boards, or migrating them from arch/ppc.
I2c, UART and EMAC are working. PCI could not be tested, so it was not included in the dts.
Signed-off-by: Markus Brunner <super.firetwister at googlemail.com>
---
boot/dts/ppc405ep.dts | 218 +++++++++++++++++++++++++++++++++++++++++++++++
platforms/40x/Kconfig | 8 +
platforms/40x/Makefile | 1
platforms/40x/ppc405ep.c | 58 ++++++++++++
4 files changed, 285 insertions(+)
diff -upNr linux-2.6.27-rc4-orig/arch/powerpc/boot/dts/ppc405ep.dts
linux-2.6.27-rc4/arch/powerpc/boot/dts/ppc405ep.dts
--- linux-2.6.27-rc4-orig/arch/powerpc/boot/dts/ppc405ep.dts 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.27-rc4/arch/powerpc/boot/dts/ppc405ep.dts 2008-08-21 09:35:45.722031912 +0200
@@ -0,0 +1,218 @@
+/*
+ * Device Tree Source for ppc405ep
+ *
+ * (c) 2008 Markus Brunner <super.firetwister at googlemail.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.
+ */
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ model = "company,ppc405ep";
+ compatible = "company,ppc405ep";
+ dcr-parent = <&/cpus/cpu at 0>;
+
+ aliases {
+ ethernet0 = &EMAC0;
+ ethernet1 = &EMAC1;
+ serial0 = &UART0;
+ serial1 = &UART1;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu at 0 {
+ device_type = "cpu";
+ model = "PowerPC,405EP";
+ reg = <0>;
+ clock-frequency = <0>; /* Filled in by u-boot */
+ timebase-frequency = <0>; /* Filled in by u-boot */
+ i-cache-line-size = <20>;
+ d-cache-line-size = <20>;
+ i-cache-size = <4000>;
+ d-cache-size = <4000>;
+ dcr-controller;
+ dcr-access-method = "native";
+ };
+ };
+
+ memory {
+ device_type = "memory";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <00000000 00000000>; /* Filled in by u-boot */
+ };
+
+ UIC0: interrupt-controller {
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <0>;
+ dcr-reg = <0c0 9>;
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+ };
+
+ plb {
+ compatible = "ibm,plb3";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ clock-frequency = <0>; /* Filled in by u-boot */
+
+ SDRAM0: memory-controller {
+ compatible = "ibm,sdram-405ep";
+ dcr-reg = <010 2>;
+ };
+
+ MAL: mcmal {
+ compatible = "ibm,mcmal-405ep", "ibm,mcmal";
+ dcr-reg = <180 62>;
+ num-tx-chans = <4>;
+ num-rx-chans = <4>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <
+ b 4 /* TXEOB */
+ c 4 /* RXEOB */
+ a 4 /* SERR */
+ d 4 /* TXDE */
+ e 4 /* RXDE */>;
+ };
+
+ POB0: opb {
+ compatible = "ibm,opb-405ep", "ibm,opb";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <ef600000 ef600000 a00000>;
+ dcr-reg = <0a0 5>;
+ clock-frequency = <0>; /* Filled in by u-boot */
+
+ UART0: serial at ef600300 {
+ device_type = "serial";
+ compatible = "ns16550";
+ reg = <ef600300 8>;
+ virtual-reg = <ef600300>;
+ clock-frequency = <0>; /* Filled in by u-boot */
+ current-speed = <1c200>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <0 4>;
+ };
+
+ UART1: serial at ef600400 {
+ device_type = "serial";
+ compatible = "ns16550";
+ reg = <ef600400 8>;
+ virtual-reg = <ef600400>;
+ clock-frequency = <0>; /* Filled in by u-boot */
+ current-speed = <1c200>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <1 4>;
+ };
+
+ IIC: i2c at ef600500 {
+ compatible = "ibm,iic-405ep", "ibm,iic";
+ reg = <ef600500 11>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <2 4>;
+ };
+
+ GPIO: gpio at ef600700 {
+ compatible = "ibm,gpio-405ep";
+ reg = <ef600700 38>;
+ };
+
+ EMAC0: ethernet at ef600800 {
+ linux,network-index = <0>;
+ device_type = "network";
+ compatible = "ibm,emac-405ep", "ibm,emac";
+ interrupt-parent = <&UIC0>;
+ interrupts = <
+ f 4 /* Ethernet */
+ 9 4 /* Ethernet Wake Up */>;
+ local-mac-address = [000000000000]; /* Filled in by u-boot */
+ reg = <ef600800 70>;
+ mal-device = <&MAL>;
+ mal-tx-channel = <0>;
+ mal-rx-channel = <0>;
+ cell-index = <0>;
+ max-frame-size = <5dc>;
+ rx-fifo-size = <1000>;
+ tx-fifo-size = <800>;
+ phy-mode = "mii";
+ phy-map = <00000000>;
+ };
+
+ EMAC1: ethernet at ef600900 {
+ linux,network-index = <1>;
+ device_type = "network";
+ compatible = "ibm,emac-405ep", "ibm,emac";
+ interrupt-parent = <&UIC0>;
+ interrupts = <
+ 11 4 /* Ethernet */
+ 9 4 /* Ethernet Wake Up */>;
+ local-mac-address = [000000000000]; /* Filled in by u-boot */
+ reg = <ef600900 70>;
+ mal-device = <&MAL>;
+ mal-tx-channel = <2>;
+ mal-rx-channel = <1>;
+ cell-index = <1>;
+ max-frame-size = <5dc>;
+ rx-fifo-size = <1000>;
+ tx-fifo-size = <800>;
+ mdio-device = <&EMAC0>;
+ phy-mode = "mii";
+ phy-map = <00000020>;
+ };
+
+
+ };
+
+ EBC0: ebc {
+ compatible = "ibm,ebc-405ep", "ibm,ebc";
+ dcr-reg = <012 2>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges = <0 0 f8000000 8000000
+ 1 0 0c000000 100000
+ 2 0 0C100000 100000
+ 3 0 0C200000 100000
+ 4 0 80000000 100000>;
+
+ clock-frequency = <0>; /* Filled in by u-boot */
+
+ nor_flash at 0,0 {
+ compatible = "amd,s29gl01gp", "cfi-flash";
+ bank-width = <2>;
+ reg = <0 000000 8000000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ partition at 0 {
+ label = "jffs2";
+ reg = <0 a00000>;
+ };
+ partition at a00000 {
+ label = "foo";
+ reg = <a00000 400000>;
+ };
+ partition at e00000 {
+ label = "bar";
+ reg = <e00000 7180000>;
+ };
+ partition at 7f80000 {
+ label = "u-boot";
+ reg = <7f80000 80000>;
+ };
+ };
+ };
+ /* PCI0: pci at ec000000 { PCI was not tested } */
+ };
+
+ chosen {
+ linux,stdout-path = "/plb/opb/serial at ef600300";
+ };
+};
diff -upNr linux-2.6.27-rc4-orig/arch/powerpc/platforms/40x/Kconfig
linux-2.6.27-rc4/arch/powerpc/platforms/40x/Kconfig
--- linux-2.6.27-rc4-orig/arch/powerpc/platforms/40x/Kconfig 2008-07-13 23:51:29.000000000 +0200
+++ linux-2.6.27-rc4/arch/powerpc/platforms/40x/Kconfig 2008-08-21 09:35:45.722031912 +0200
@@ -42,6 +42,14 @@ config MAKALU
help
This option enables support for the AMCC PPC405EX board.
+config PPC405EP
+ bool "ppc405ep"
+ depends on 40x
+ default n
+ select 405EP
+ help
+ This option enables support for a simple ppc 405ep board.
+
#config REDWOOD_5
# bool "Redwood-5"
# depends on 40x
diff -upNr linux-2.6.27-rc4-orig/arch/powerpc/platforms/40x/Makefile
linux-2.6.27-rc4/arch/powerpc/platforms/40x/Makefile
--- linux-2.6.27-rc4-orig/arch/powerpc/platforms/40x/Makefile 2008-07-13 23:51:29.000000000 +0200
+++ linux-2.6.27-rc4/arch/powerpc/platforms/40x/Makefile 2008-08-21 10:03:54.718530907 +0200
@@ -3,3 +3,4 @@ obj-$(CONFIG_MAKALU) += makalu.o
obj-$(CONFIG_WALNUT) += walnut.o
obj-$(CONFIG_XILINX_VIRTEX_GENERIC_BOARD) += virtex.o
obj-$(CONFIG_EP405) += ep405.o
+obj-$(CONFIG_PPC405EP) += ppc405ep.o
diff -upNr linux-2.6.27-rc4-orig/arch/powerpc/platforms/40x/ppc405ep.c
linux-2.6.27-rc4/arch/powerpc/platforms/40x/ppc405ep.c
--- linux-2.6.27-rc4-orig/arch/powerpc/platforms/40x/ppc405ep.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.27-rc4/arch/powerpc/platforms/40x/ppc405ep.c 2008-08-21 09:35:45.728701197 +0200
@@ -0,0 +1,58 @@
+/*
+ * Powerpc 405EP board setup. Not aimed at any particular board.
+ *
+ * Copyright(c) 2008 Markus Brunner <super.firetwister at googlemail.com>
+ *
+ * Based on the Walnut code by
+ * Josh Boyer <jwboyer at linux.vnet.ibm.com>
+ * Copyright 2007 IBM Corporation
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/of_platform.h>
+
+#include <asm/machdep.h>
+#include <asm/ppc4xx.h>
+#include <asm/time.h>
+#include <asm/udbg.h>
+#include <asm/uic.h>
+
+
+static __initdata struct of_device_id ppc405ep_of_bus[] = {
+ { .compatible = "ibm,plb3", },
+ { .compatible = "ibm,opb", },
+ { .compatible = "ibm,ebc", },
+ {},
+};
+
+static int __init ppc405ep_device_probe(void)
+{
+ of_platform_bus_probe(NULL, ppc405ep_of_bus, NULL);
+
+ return 0;
+}
+machine_device_initcall(ppc405ep, ppc405ep_device_probe);
+
+static int __init ppc405ep_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+ if (!of_flat_dt_is_compatible(root, "company,ppc405ep"))
+ return 0;
+
+ return 1;
+}
+
+define_machine(ppc405ep) {
+ .name = "ppc405ep",
+ .probe = ppc405ep_probe,
+ .progress = udbg_progress,
+ .init_IRQ = uic_init_tree,
+ .get_irq = uic_get_irq,
+ .restart = ppc4xx_reset_system,
+ .calibrate_decr = generic_calibrate_decr,
+};
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