[PATCH 1/3] e1000: implement register mapping for E1000_{EERD, FLSW{CTL, DATA, CNT}}
Andrey Smirnov
andrew.smirnov at gmail.com
Mon Oct 9 11:22:34 PDT 2017
On Mon, Oct 9, 2017 at 2:36 AM, Uwe Kleine-König
<u.kleine-koenig at pengutronix.de> wrote:
> Fixes: 4ff3269a70b5 ("e1000: Expose i210's external flash as MTD")
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
> ---
> drivers/net/e1000/e1000.h | 9 +++++----
> drivers/net/e1000/regio.c | 12 ++++++++++++
> 2 files changed, 17 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/e1000/e1000.h b/drivers/net/e1000/e1000.h
> index e6b493c84cc1..2a29ef47e818 100644
> --- a/drivers/net/e1000/e1000.h
> +++ b/drivers/net/e1000/e1000.h
> @@ -410,7 +410,8 @@ struct e1000_tx_desc {
> #define E1000_CTRL 0x00000 /* Device Control - RW */
> #define E1000_STATUS 0x00008 /* Device Status - RO */
> #define E1000_EECD 0x00010 /* EEPROM/Flash Control - RW */
> -#define E1000_EERD 0x00014 /* EEPROM Read - RW */
> +#define E1000_EERD (E1000_MIGHT_BE_REMAPPED | 0x00014) /* EEPROM Read - RW */
> +#define E1000_I210_EERD 0x12014 /* EEPROM Read - RW */
> #define E1000_CTRL_EXT 0x00018 /* Extended Device Control - RW */
> #define E1000_MDIC 0x00020 /* MDI Control - RW */
> #define E1000_FCAL 0x00028 /* Flow Control Address Low - RW */
> @@ -447,11 +448,11 @@ struct e1000_tx_desc {
> #define E1000_FLASHT 0x01028 /* FLASH Timer Register */
> #define E1000_EEWR (E1000_MIGHT_BE_REMAPPED | 0x0102C) /* EEPROM Write Register - RW */
> #define E1000_I210_EEWR 0x12018 /* EEPROM Write Register - RW */
> -#define E1000_FLSWCTL 0x01030 /* FLASH control register */
> +#define E1000_FLSWCTL (E1000_MIGHT_BE_REMAPPED | 0x01030) /* FLASH control register */
> #define E1000_I210_FLSWCTL 0x12048 /* FLASH control register */
> -#define E1000_FLSWDATA 0x01034 /* FLASH data register */
> +#define E1000_FLSWDATA (E1000_MIGHT_BE_REMAPPED | 0x01034) /* FLASH data register */
> #define E1000_I210_FLSWDATA 0x1204C /* FLASH data register */
> -#define E1000_FLSWCNT 0x01038 /* FLASH Access Counter */
> +#define E1000_FLSWCNT (E1000_MIGHT_BE_REMAPPED | 0x01038) /* FLASH Access Counter */
> #define E1000_I210_FLSWCNT 0x12050 /* FLASH Access Counter */
> #define E1000_FLOP 0x0103C /* FLASH Opcode Register */
> #define E1000_ERT 0x02008 /* Early Rx Threshold - RW */
> diff --git a/drivers/net/e1000/regio.c b/drivers/net/e1000/regio.c
> index 1610d5851f05..9ef325fb8581 100644
> --- a/drivers/net/e1000/regio.c
> +++ b/drivers/net/e1000/regio.c
> @@ -7,6 +7,9 @@ static uint32_t e1000_true_offset(struct e1000_hw *hw, uint32_t reg)
> if (reg & E1000_MIGHT_BE_REMAPPED) {
> if (hw->mac_type == e1000_igb) {
> switch (reg) {
> + case E1000_EERD:
> + reg = E1000_I210_EERD;
> + break;
Rev. 2.8 lists 0x00014 as alias for 0x12014 (that's why I didn't do
any "re-mapping" here) is it not true?
> case E1000_EEWR:
> reg = E1000_I210_EEWR;
> break;
> @@ -16,6 +19,15 @@ static uint32_t e1000_true_offset(struct e1000_hw *hw, uint32_t reg)
> case E1000_EEMNGCTL:
> reg = E1000_I210_EEMNGCTL;
> break;
> + case E1000_FLSWCTL:
> + reg = E1000_I210_FLSWCTL;
> + break;
> + case E1000_FLSWCNT:
> + reg = E1000_I210_FLSWCNT;
> + break;
> + case E1000_FLSWDATA:
> + reg = E1000_I210_FLSWDATA;
> + break;
Somehow missed these guys, sorry about that.
Acked-by: Andrey Smirnov <andrew.smirnov at gmail.com>
Thanks,
Andrey Smirnov
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