[PATCH] Add base support for the MPC8313E RDB
Kumar Gala
galak at kernel.crashing.org
Thu Feb 8 10:36:34 EST 2007
On Feb 7, 2007, at 5:06 PM, Kim Phillips wrote:
> Add support for the MPC8313E Reference Development Board (RDB).
> Includes dts.
Can you give some better description about the RDB, like what
functionality it supports, etc..
> Signed-off-by: Wilson Lo <Wilson.Lo at freescale.com>
> Signed-off-by: Scott Wood <scottwood at freescale.com>
> Signed-off-by: Kim Phillips <kim.phillips at freescale.com>
> ---
> arch/powerpc/boot/dts/mpc8313erdb.dts | 221 ++++++++++++++++++
> +++++++++++
> arch/powerpc/platforms/83xx/Kconfig | 12 ++
> arch/powerpc/platforms/83xx/Makefile | 1 +
> arch/powerpc/platforms/83xx/mpc8313_rdb.c | 99 +++++++++++++
> 4 files changed, 333 insertions(+), 0 deletions(-)
>
> diff --git a/arch/powerpc/boot/dts/mpc8313erdb.dts b/arch/powerpc/
> boot/dts/mpc8313erdb.dts
> new file mode 100644
> index 0000000..2cde658
> --- /dev/null
> +++ b/arch/powerpc/boot/dts/mpc8313erdb.dts
> @@ -0,0 +1,221 @@
> +/*
> + * MPC8313E RDB Device Tree Source
> + *
> + * Copyright 2005, 2006, 2007 Freescale Semiconductor Inc.
> + *
> + * 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.
> + */
> +
> +/ {
> + model = "MPC8313ERDB";
> + compatible = "MPC83xx";
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + cpus {
> + #cpus = <1>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + PowerPC,8313 at 0 {
> + device_type = "cpu";
> + reg = <0>;
> + d-cache-line-size = <20>; // 32 bytes
> + i-cache-line-size = <20>; // 32 bytes
> + d-cache-size = <4000>; // L1, 16K
> + i-cache-size = <4000>; // L1, 16K
> + timebase-frequency = <0>; // from bootloader
> + bus-frequency = <0>; // from bootloader
> + clock-frequency = <0>; // from bootloader
> + 32-bit;
> + };
> + };
> +
> + memory {
> + device_type = "memory";
> + reg = <00000000 08000000>; // 128MB at 0
> + };
> +
> + soc8313 at e0000000 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + #interrupt-cells = <2>;
> + device_type = "soc";
> + ranges = <0 e0000000 00100000>;
> + reg = <e0000000 00000200>;
> + bus-frequency = <0>;
> + compatible = "mpc8313\0mpc831x\0mpc83xx";
I'm not sure what this compatible property is suppose to mean?
> +
> + wdt at 200 {
> + device_type = "watchdog";
> + compatible = "mpc83xx_wdt";
> + reg = <200 100>;
> + };
> +
> + i2c at 3000 {
> + device_type = "i2c";
> + compatible = "fsl-i2c";
> + reg = <3000 100>;
> + interrupts = <e 8>;
> + interrupt-parent = <700>;
> + dfsrr;
> + };
> +
> + i2c at 3100 {
> + device_type = "i2c";
> + compatible = "fsl-i2c";
> + reg = <3100 100>;
> + interrupts = <f 8>;
> + interrupt-parent = <700>;
> + dfsrr;
> + };
> +
> + spi at 7000 {
> + device_type = "spi";
> + compatible = "mpc83xx_spi";
> + reg = <7000 1000>;
> + interrupts = <10 8>;
> + interrupt-parent = <700>;
> + mode = <0>;
> + };
> +
> + /* phy type (ULPI, UTMI, UTMI_WIDE, SERIAL) */
> + usb at 23000 {
> + device_type = "usb";
> + compatible = "fsl-usb2-dr";
> + reg = <23000 1000>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + interrupt-parent = <700>;
> + interrupts = <26 2>;
> + phy_type = "utmi_wide";
Does anything change because of the integrated UTMI phy?
> + control_init = <00000280>; // UTMI ext 48 MHz clk
What is 'control_init' ?
> + };
> +
> + mdio at 24520 {
> + device_type = "mdio";
> + compatible = "gianfar";
> + reg = <24520 20>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + linux,phandle = <24520>;
> + ethernet-phy at 1 {
> + linux,phandle = <2452001>;
> + interrupt-parent = <700>;
> + interrupts = <13 2>;
> + reg = <1>;
> + device_type = "ethernet-phy";
> + };
> + ethernet-phy at 4 {
> + linux,phandle = <2452004>;
> + interrupt-parent = <700>;
> + interrupts = <14 2>;
> + reg = <4>;
> + device_type = "ethernet-phy";
> + };
> + };
> +
> + ethernet at 24000 {
> + device_type = "network";
> + model = "TSEC";
isn't eTSEC on 8313?
> + compatible = "gianfar";
> + reg = <24000 1000>;
> + local-mac-address = [ 00 00 00 00 00 00 ];
> + interrupts = <25 8 24 8 23 8>;
> + interrupt-parent = <700>;
> + phy-handle = <2452001>;
> + };
> +
> + ethernet at 25000 {
> + device_type = "network";
> + model = "TSEC";
> + compatible = "gianfar";
> + reg = <25000 1000>;
> + local-mac-address = [ 00 00 00 00 00 00 ];
> + interrupts = <22 8 21 8 20 8>;
> + interrupt-parent = <700>;
> + phy-handle = <2452004>;
> + };
> +
> + serial at 4500 {
> + device_type = "serial";
> + compatible = "ns16550";
> + reg = <4500 100>;
> + clock-frequency = <0>;
> + interrupts = <9 8>;
> + interrupt-parent = <700>;
> + };
> +
> + serial at 4600 {
> + device_type = "serial";
> + compatible = "ns16550";
> + reg = <4600 100>;
> + clock-frequency = <0>;
> + interrupts = <a 8>;
> + interrupt-parent = <700>;
> + };
> +
> + pci at 8500 {
> + interrupt-map-mask = <f800 0 0 7>;
> + interrupt-map = <
> +
> + /* IDSEL 0x0E -mini PCI */
> + 7000 0 0 1 700 12 8
> + 7000 0 0 2 700 12 8
> + 7000 0 0 3 700 12 8
> + 7000 0 0 4 700 12 8
> +
> + /* IDSEL 0x0F - PCI slot */
> + 7800 0 0 1 700 11 8
> + 7800 0 0 2 700 12 8
> + 7800 0 0 3 700 11 8
> + 7800 0 0 4 700 12 8>;
> + interrupt-parent = <700>;
> + interrupts = <42 8>;
> + bus-range = <0 0>;
> + ranges = <02000000 0 90000000 90000000 0 10000000
> + 42000000 0 80000000 80000000 0 10000000
> + 01000000 0 00000000 e2000000 0 00100000>;
> + clock-frequency = <3f940aa>;
> + #interrupt-cells = <1>;
> + #size-cells = <2>;
> + #address-cells = <3>;
> + reg = <8500 100>;
> + compatible = "83xx";
> + device_type = "pci";
> + };
> +
> + crypto at 30000 {
> + device_type = "crypto";
> + model = "SEC2";
> + compatible = "talitos";
> + reg = <30000 7000>;
> + interrupts = <b 8>;
> + interrupt-parent = <700>;
> + /* Rev. 2.2 */
> + num-channels = <1>;
> + channel-fifo-len = <18>;
> + exec-units-mask = <0000004c>;
> + descriptor-types-mask = <0122003f>;
> + };
> +
> + /* IPIC
> + * interrupts cell = <intr #, sense>
> + * sense values match linux IORESOURCE_IRQ_* defines:
> + * sense == 8: Level, low assertion
> + * sense == 2: Edge, high-to-low change
> + */
> + pic at 700 {
> + linux,phandle = <700>;
> + interrupt-controller;
> + #address-cells = <0>;
> + #interrupt-cells = <2>;
> + reg = <700 100>;
> + built-in;
> + device_type = "ipic";
> + };
> + };
> +};
> diff --git a/arch/powerpc/platforms/83xx/Kconfig b/arch/powerpc/
> platforms/83xx/Kconfig
> index edcd5b8..46883c5 100644
> --- a/arch/powerpc/platforms/83xx/Kconfig
> +++ b/arch/powerpc/platforms/83xx/Kconfig
> @@ -5,6 +5,12 @@ choice
> prompt "Machine Type"
> default MPC834x_SYS
>
> +config MPC8313_RDB
> + bool "Freescale MPC8313 RDB"
> + select DEFAULT_UIMAGE
> + help
> + This option enables support for the MPC8313 RDB board.
> +
> config MPC832x_MDS
> bool "Freescale MPC832x MDS"
> select DEFAULT_UIMAGE
> @@ -41,6 +47,12 @@ config MPC8360E_PB
>
> endchoice
>
> +config PPC_MPC831x
> + bool
> + select PPC_UDBG_16550
> + select PPC_INDIRECT_PCI
> + default y if MPC8313_RDB
> +
> config PPC_MPC832x
> bool
> select PPC_UDBG_16550
> diff --git a/arch/powerpc/platforms/83xx/Makefile b/arch/powerpc/
> platforms/83xx/Makefile
> index f1aa7e2..0b732a7 100644
> --- a/arch/powerpc/platforms/83xx/Makefile
> +++ b/arch/powerpc/platforms/83xx/Makefile
> @@ -3,6 +3,7 @@
> #
> obj-y := misc.o
> obj-$(CONFIG_PCI) += pci.o
> +obj-$(CONFIG_MPC8313_RDB) += mpc8313_rdb.o
> obj-$(CONFIG_MPC834x_SYS) += mpc834x_sys.o
> obj-$(CONFIG_MPC834x_ITX) += mpc834x_itx.o
> obj-$(CONFIG_MPC8360E_PB) += mpc8360e_pb.o
> diff --git a/arch/powerpc/platforms/83xx/mpc8313_rdb.c b/arch/
> powerpc/platforms/83xx/mpc8313_rdb.c
> new file mode 100644
> index 0000000..c3b98c3
> --- /dev/null
> +++ b/arch/powerpc/platforms/83xx/mpc8313_rdb.c
> @@ -0,0 +1,99 @@
> +/*
> + * arch/powerpc/platforms/83xx/mpc8313_rdb.c
> + *
> + * Description: MPC8313x RDB board specific routines.
> + * This file is based on mpc834x_sys.c
> + * Author: Lo Wlison <r43300 at freescale.com>
> + *
> + * Copyright (C) Freescale Semiconductor, Inc. 2006. All rights
> reserved.
> + *
> + * 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/pci.h>
> +
> +#include <asm/time.h>
> +#include <asm/ipic.h>
> +#include <asm/udbg.h>
> +
> +#include "mpc83xx.h"
> +
> +#undef DEBUG
> +#ifdef DEBUG
> +#define DBG(fmt...) udbg_printf(fmt)
> +#else
> +#define DBG(fmt...)
> +#endif
> +
> +#ifndef CONFIG_PCI
> +unsigned long isa_io_base = 0;
> +unsigned long isa_mem_base = 0;
> +#endif
> +
> +/*
> **********************************************************************
> **
> + *
> + * Setup the architecture
> + *
> + */
> +static void __init mpc8313_rdb_setup_arch(void)
> +{
> + struct device_node *np;
> +
> + if (ppc_md.progress)
> + ppc_md.progress("mpc8313_rdb_setup_arch()", 0);
> +
> +#ifdef CONFIG_PCI
> + for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
> + add_bridge(np);
> +
> + ppc_md.pci_exclude_device = mpc83xx_exclude_device;
> +#endif
> +}
> +
> +void __init mpc8313_rdb_init_IRQ(void)
> +{
> + struct device_node *np;
> +
> + np = of_find_node_by_type(NULL, "ipic");
> + if (!np)
> + return;
> +
> + ipic_init(np, 0);
> +
> + /* Initialize the default interrupt mapping priorities,
> + * in case the boot rom changed something on us.
> + */
> + ipic_set_default_priority();
> +}
> +
> +/*
> + * Called very early, MMU is off, device-tree isn't unflattened
> + */
> +static int __init mpc8313_rdb_probe(void)
> +{
> + char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
> + "model", NULL);
> + if (model == NULL)
> + return 0;
> + if (strcmp(model, "MPC8313ERDB"))
> + return 0;
> +
> + DBG("MPC8313 RDB found\n");
> +
> + return 1;
> +}
> +
> +define_machine(mpc8313_rdb) {
> + .name = "MPC8313 RDB",
> + .probe = mpc8313_rdb_probe,
> + .setup_arch = mpc8313_rdb_setup_arch,
> + .init_IRQ = mpc8313_rdb_init_IRQ,
> + .get_irq = ipic_get_irq,
> + .restart = mpc83xx_restart,
> + .time_init = mpc83xx_time_init,
> + .calibrate_decr = generic_calibrate_decr,
> + .progress = udbg_progress,
> +};
> --
> 1.4.4
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