linux-kernel - RE: [PATCH v9 6/6] thunderbolt: Add support for ASMedia image format

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Message-Id: <20220906101128.6504-1-chensiying21@gmail.com>
Date:   Tue,  6 Sep 2022 18:11:28 +0800
From:   Szuying Chen <chensiying21@...il.com>
To:     mika.westerberg@...ux.intel.com, YehezkelShB@...il.com
Cc:     gregkh@...uxfoundation.org, mario.limonciello@....com,
        andreas.noever@...il.com, michael.jamet@...el.com,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Yd_Tseng@...edia.com.tw, Chloe_Chen@...edia.com.tw,
        Richard_Hsu@...edia.com.tw
Subject: RE: [PATCH v9 6/6] thunderbolt: Add support for ASMedia image format

From: Szuying Chen <Chloe_Chen@...edia.com.tw>

Hi,

>  
> +static int asmedia_switch_nvm_version(struct tb_nvm *nvm) {
> +	struct tb_switch *sw = tb_to_switch(nvm->dev);
> +	u32 val;
> +	int ret;
> +
> +	ret = tb_switch_nvm_read(sw, ASMEDIA_NVM_VERSION, &val, sizeof(val));
> +	if (ret)
> +		return ret;
> +
> +	nvm->major = (val << 16) & 0xff0000;
> +	nvm->minor |= val & 0x00ff00;

	nvm->major

> +	nvm->major |= (val >> 16) & 0x0000ff;
> +
> +	ret = tb_switch_nvm_read(sw, ASMEDIA_NVM_DATE, &val, sizeof(val));
> +	if (ret)
> +		return ret;
> +
> +	nvm->minor = (val << 16) & 0xff0000;
> +	nvm->minor |= val & 0x00ff00;
> +	nvm->minor |= (val >> 16) & 0x0000ff;
> +
> +	/* ASMedia NVM size is fixed to 512k */
> +	nvm->active_size = SZ_512K;
> +
> +	return 0;
> +}
> +
> +static const struct tb_nvm_vendor_ops asmedia_switch_nvm_ops = {
> +	.read_version = asmedia_switch_nvm_version, };
> +
>  /* Router vendor NVM support table */
>  static const struct tb_nvm_vendor switch_nvm_vendors[] = {
> +	{ 0x174c, &asmedia_switch_nvm_ops },
>  	{ PCI_VENDOR_ID_INTEL, &intel_switch_nvm_ops },
>  	{ 0x8087, &intel_switch_nvm_ops },
>  };
> --

Thanks!