[PATCH] net: e1000: read EEPROM through EERD register on 8257x adapters

[Sascha Hauer]

On Fri, Jan 13, 2023 at 05:09:09PM +0300, Denis Orlov wrote:
> For some reason, we would only use EERD if Flash is used as non-volatile
> memory. However, looking at e1000e driver sources from Linux this is how
> they are reading NVM on those cards for both EEPROM and Flash.
> 
> This fixes issues with reading EEPROM in driver on QEMU emulated 82574
> PCIe card.
> 
> Signed-off-by: Denis Orlov <denorl2009 at gmail.com>
> ---
>  drivers/net/e1000/eeprom.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Applied, thanks

Sascha

> 
> diff --git a/drivers/net/e1000/eeprom.c b/drivers/net/e1000/eeprom.c
> index 27143bd6d0..c90faf3a58 100644
> --- a/drivers/net/e1000/eeprom.c
> +++ b/drivers/net/e1000/eeprom.c
> @@ -495,6 +495,7 @@ int32_t e1000_init_eeprom_params(struct e1000_hw *hw)
>  	case e1000_82571:
>  	case e1000_82572:
>  		e1000_eeprom_uses_spi(eeprom, eecd);
> +		eeprom->read = e1000_read_eeprom_eerd;
>  		break;
>  
>  	case e1000_82573:
> @@ -502,7 +503,6 @@ int32_t e1000_init_eeprom_params(struct e1000_hw *hw)
>  		if (e1000_is_onboard_nvm_eeprom(hw)) {
>  			e1000_eeprom_uses_spi(eeprom, eecd);
>  		} else {
> -			eeprom->read = e1000_read_eeprom_eerd;
>  			eeprom->type = e1000_eeprom_flash;
>  			eeprom->word_size = 2048;
>  
> @@ -513,6 +513,7 @@ int32_t e1000_init_eeprom_params(struct e1000_hw *hw)
>  			eecd &= ~E1000_EECD_AUPDEN;
>  			e1000_write_reg(hw, E1000_EECD, eecd);
>  		}
> +		eeprom->read = e1000_read_eeprom_eerd;
>  		break;
>  
>  	case e1000_80003es2lan:
> -- 
> 2.30.2
> 
> 

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