linux-kernel - Re: [PATCH v4 04/36] nds32: Kernel booting and initialization

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Date:   Tue, 19 Dec 2017 14:01:40 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Greentime Hu <green.hu@...il.com>, greentime@...estech.com,
        linux-kernel@...r.kernel.org, arnd@...db.de,
        linux-arch@...r.kernel.org, tglx@...utronix.de,
        jason@...edaemon.net, marc.zyngier@....com, robh+dt@...nel.org,
        netdev@...r.kernel.org, deanbo422@...il.com,
        devicetree@...r.kernel.org, viro@...iv.linux.org.uk,
        dhowells@...hat.com, will.deacon@....com,
        daniel.lezcano@...aro.org, linux-serial@...r.kernel.org,
        geert.uytterhoeven@...il.com, linus.walleij@...aro.org,
        mark.rutland@....com, greg@...ah.com, ren_guo@...ky.com,
        pombredanne@...b.com
Cc:     Vincent Chen <vincentc@...estech.com>
Subject: Re: [PATCH v4 04/36] nds32: Kernel booting and initialization

On 12/17/2017 10:46 PM, Greentime Hu wrote:
> From: Greentime Hu <greentime@...estech.com>
> 
> This patch includes the kernel startup code. It can get dtb pointer
> passed from bootloader. It will create a temp mapping by tlb
> instructions at beginning and goto start_kernel.
> 
> Signed-off-by: Vincent Chen <vincentc@...estech.com>
> Signed-off-by: Greentime Hu <greentime@...estech.com>
> ---
>  arch/nds32/kernel/head.S  |  189 ++++++++++++++++++++++
>  arch/nds32/kernel/setup.c |  383 +++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 572 insertions(+)
>  create mode 100644 arch/nds32/kernel/head.S
>  create mode 100644 arch/nds32/kernel/setup.c
> 

> diff --git a/arch/nds32/kernel/setup.c b/arch/nds32/kernel/setup.c
> new file mode 100644
> index 0000000..7718c58
> --- /dev/null
> +++ b/arch/nds32/kernel/setup.c
> @@ -0,0 +1,383 @@
> +// SPDX-License-Identifier: GPL-2.0
> +// Copyright (C) 2005-2017 Andes Technology Corporation
> +

[snip]

> +struct cache_info L1_cache_info[2];
> +static void __init dump_cpu_info(int cpu)
> +{
> +	int i, p = 0;
> +	char str[sizeof(hwcap_str) + 16];
> +
> +	for (i = 0; hwcap_str[i]; i++) {
> +		if (elf_hwcap & (1 << i)) {
> +			sprintf(str + p, "%s ", hwcap_str[i]);
> +			p += strlen(hwcap_str[i]) + 1;
> +		}
> +	}
> +
> +	pr_info("CPU%d Featuretures: %s\n", cpu, str);

	               Features:


-- 
~Randy