[PATCH 4/4] PowerPC 440EPx: Sequoia board support
David Gibson
david at gibson.dropbear.id.au
Wed Aug 15 13:48:08 EST 2007
On Tue, Aug 14, 2007 at 11:04:09PM +0400, Valentine Barshak wrote:
> AMCC 440EPx Sequoia board support.
> The second bit (0x4) in the 440EPx/440GRx PVR value indicates
> the Security/Kasumi engine absence if set.
> This bit has been removed from the pvr mask to use a single
> cputable entry for with/without Security/Kasumi cpu versions.
>
>
> Signed-off-by: Valentine Barshak <vbarshak at ru.mvista.com>
> ---
> arch/powerpc/kernel/cputable.c | 18 +++++++++
> arch/powerpc/kernel/head_44x.S | 2 -
> arch/powerpc/platforms/44x/Kconfig | 17 ++++++++-
> arch/powerpc/platforms/44x/Makefile | 1
> arch/powerpc/platforms/44x/sequoia.c | 66 +++++++++++++++++++++++++++++++++++
> 5 files changed, 102 insertions(+), 2 deletions(-)
>
> diff -ruN linux-2.6.orig/arch/powerpc/kernel/cputable.c linux-2.6/arch/powerpc/kernel/cputable.c
> --- linux-2.6.orig/arch/powerpc/kernel/cputable.c 2007-08-14 17:11:18.000000000 +0400
> +++ linux-2.6/arch/powerpc/kernel/cputable.c 2007-08-14 19:37:54.000000000 +0400
> @@ -1132,6 +1132,24 @@
> .dcache_bsize = 32,
> .platform = "ppc440",
> },
> + { /* 440EPX */
> + .pvr_mask = 0xf0000ffb,
> + .pvr_value = 0x200008D0,
> + .cpu_name = "440EPX",
> + .cpu_features = CPU_FTRS_44X,
> + .cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
> + .icache_bsize = 32,
> + .dcache_bsize = 32,
> + },
> + { /* 440GRX */
> + .pvr_mask = 0xf0000ffb,
> + .pvr_value = 0x200008D8,
> + .cpu_name = "440GRX",
> + .cpu_features = CPU_FTRS_44X,
> + .cpu_user_features = COMMON_USER_BOOKE,
> + .icache_bsize = 32,
> + .dcache_bsize = 32,
> + },
> { /* 440GP Rev. B */
> .pvr_mask = 0xf0000fff,
> .pvr_value = 0x40000440,
> diff -ruN linux-2.6.orig/arch/powerpc/kernel/head_44x.S linux-2.6/arch/powerpc/kernel/head_44x.S
> --- linux-2.6.orig/arch/powerpc/kernel/head_44x.S 2007-08-14 17:11:19.000000000 +0400
> +++ linux-2.6/arch/powerpc/kernel/head_44x.S 2007-08-14 17:18:43.000000000 +0400
> @@ -217,7 +217,7 @@
> lis r4,interrupt_base at h /* IVPR only uses the high 16-bits */
> mtspr SPRN_IVPR,r4
>
> -#ifdef CONFIG_440EP
> +#if defined(CONFIG_440EP) || defined(CONFIG_440EPX)
Since we should now be able to support both 440GP and 440EP boards in
the same kernel, this probably needs to become a feature section.
> /* Clear DAPUIB flag in CCR0 (enable APU between CPU and FPU) */
> mfspr r2,SPRN_CCR0
> lis r3,0xffef
> diff -ruN linux-2.6.orig/arch/powerpc/platforms/44x/Kconfig linux-2.6/arch/powerpc/platforms/44x/Kconfig
> --- linux-2.6.orig/arch/powerpc/platforms/44x/Kconfig 2007-08-14 17:11:17.000000000 +0400
> +++ linux-2.6/arch/powerpc/platforms/44x/Kconfig 2007-08-14 20:36:19.000000000 +0400
> @@ -14,6 +14,14 @@
> help
> This option enables support for the IBM PPC440GP evaluation board.
>
> +config SEQUOIA
> + bool "Sequoia"
> + depends on 44x
> + default n
> + select 440EPX
> + help
> + This option enables support for the AMCC PPC440EPX evaluation board.
> +
> #config LUAN
> # bool "Luan"
> # depends on 44x
> @@ -37,6 +45,13 @@
> select IBM440EP_ERR42
> # select IBM_NEW_EMAC_ZMII
>
> +config 440EPX
> + bool
> + select PPC_FPU
> +# Disabled until the new EMAC Driver is merged.
> +# select IBM_NEW_EMAC_EMAC4
> +# select IBM_NEW_EMAC_ZMII
> +
> config 440GP
> bool
> # Disabled until the new EMAC Driver is merged.
> @@ -50,7 +65,7 @@
>
> config 440A
> bool
> - depends on 440GX
> + depends on 440GX || 440EPX
> default y
>
> # 44x errata/workaround config symbols, selected by the CPU models above
> diff -ruN linux-2.6.orig/arch/powerpc/platforms/44x/Makefile linux-2.6/arch/powerpc/platforms/44x/Makefile
> --- linux-2.6.orig/arch/powerpc/platforms/44x/Makefile 2007-08-14 17:11:17.000000000 +0400
> +++ linux-2.6/arch/powerpc/platforms/44x/Makefile 2007-08-14 17:18:43.000000000 +0400
> @@ -1,3 +1,4 @@
> obj-$(CONFIG_44x) := misc_44x.o
> obj-$(CONFIG_EBONY) += ebony.o
> obj-$(CONFIG_BAMBOO) += bamboo.o
> +obj-$(CONFIG_SEQUOIA) += sequoia.o
> diff -ruN linux-2.6.orig/arch/powerpc/platforms/44x/sequoia.c linux-2.6/arch/powerpc/platforms/44x/sequoia.c
> --- linux-2.6.orig/arch/powerpc/platforms/44x/sequoia.c 1970-01-01 03:00:00.000000000 +0300
> +++ linux-2.6/arch/powerpc/platforms/44x/sequoia.c 2007-08-14 20:12:26.000000000 +0400
> @@ -0,0 +1,66 @@
> +/*
> + * Sequoia board specific routines
> + *
> + * Valentine Barshak <vbarshak at ru.mvista.com>
> + * Copyright 2007 MontaVista Software Inc.
> + *
> + * Based on the Bamboo 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 <asm/machdep.h>
> +#include <asm/prom.h>
> +#include <asm/udbg.h>
> +#include <asm/time.h>
> +#include <asm/uic.h>
> +#include <asm/of_platform.h>
> +#include "44x.h"
> +
> +static struct of_device_id sequoia_of_bus[] = {
> + { .compatible = "ibm,plb", },
> + { .compatible = "ibm,opb", },
> + { .compatible = "ibm,ebc", },
> + {},
> +};
> +
> +static int __init sequoia_device_probe(void)
> +{
> + if (!machine_is(sequoia))
> + return 0;
> +
> + of_platform_bus_probe(NULL, sequoia_of_bus, NULL);
> +
> + return 0;
> +}
> +device_initcall(sequoia_device_probe);
> +
> +static int __init sequoia_probe(void)
> +{
> + unsigned long root = of_get_flat_dt_root();
> +
> + if (!of_flat_dt_is_compatible(root, "amcc,sequoia"))
> + return 0;
> +
> + return 1;
> +}
> +
> +static void __init sequoia_setup_arch(void)
> +{
> +}
> +
> +define_machine(sequoia) {
> + .name = "Sequoia",
> + .probe = sequoia_probe,
> + .setup_arch = sequoia_setup_arch,
> + .progress = udbg_progress,
> + .init_IRQ = uic_init_tree,
> + .get_irq = uic_get_irq,
> + .restart = ppc44x_reset_system,
> + .calibrate_decr = generic_calibrate_decr,
> +};
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--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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