On Tue, May 10, 2022 at 3:20 PM Weijie Gao <weijie....@mediatek.com> wrote:
>
> This patch adds GMAC support for MediaTek MT7621 SoC.
> MT7621 has the same GMAC/Switch configuration as MT7623.
>
> Signed-off-by: Weijie Gao <weijie....@mediatek.com>
> ---
> v4 changes:
> Split unrelated changes to new patches
> v3 changes:
> Add register remap needed by mt7621
> Fix use of noncached_alloc
> v2 changes: none
> ---
> drivers/net/mtk_eth.c | 21 +++++++++++++++------
> 1 file changed, 15 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/mtk_eth.c b/drivers/net/mtk_eth.c
> index ac1e8abd71..4fe7ee0d36 100644
> --- a/drivers/net/mtk_eth.c
> +++ b/drivers/net/mtk_eth.c
> @@ -145,7 +145,8 @@ enum mtk_switch {
> enum mtk_soc {
> SOC_MT7623,
> SOC_MT7629,
> - SOC_MT7622
> + SOC_MT7622,
> + SOC_MT7621
> };
>
> struct mtk_eth_priv {
> @@ -675,12 +676,18 @@ static int mt7530_pad_clk_setup(struct mtk_eth_priv
> *priv, int mode)
> static int mt7530_setup(struct mtk_eth_priv *priv)
> {
> u16 phy_addr, phy_val;
> - u32 val;
> + u32 val, txdrv;
> int i;
>
> - /* Select 250MHz clk for RGMII mode */
> - mtk_ethsys_rmw(priv, ETHSYS_CLKCFG0_REG,
> - ETHSYS_TRGMII_CLK_SEL362_5, 0);
> + if (priv->soc != SOC_MT7621) {
> + /* Select 250MHz clk for RGMII mode */
> + mtk_ethsys_rmw(priv, ETHSYS_CLKCFG0_REG,
> + ETHSYS_TRGMII_CLK_SEL362_5, 0);
> +
> + txdrv = 8;
> + } else {
> + txdrv = 4;
> + }
>
> /* Modify HWTRAP first to allow direct access to internal PHYs */
> mt753x_reg_read(priv, HWTRAP_REG, &val);
> @@ -738,7 +745,8 @@ static int mt7530_setup(struct mtk_eth_priv *priv)
> /* Lower Tx Driving for TRGMII path */
> for (i = 0 ; i < NUM_TRGMII_CTRL ; i++)
> mt753x_reg_write(priv, MT7530_TRGMII_TD_ODT(i),
> - (8 << TD_DM_DRVP_S) | (8 << TD_DM_DRVN_S));
> + (txdrv << TD_DM_DRVP_S) |
> + (txdrv << TD_DM_DRVN_S));
>
> for (i = 0 ; i < NUM_TRGMII_CTRL; i++)
> mt753x_reg_rmw(priv, MT7530_TRGMII_RD(i), RD_TAP_M, 16);
> @@ -1540,6 +1548,7 @@ static const struct udevice_id mtk_eth_ids[] = {
> { .compatible = "mediatek,mt7629-eth", .data = SOC_MT7629 },
> { .compatible = "mediatek,mt7623-eth", .data = SOC_MT7623 },
> { .compatible = "mediatek,mt7622-eth", .data = SOC_MT7622 },
> + { .compatible = "mediatek,mt7621-eth", .data = SOC_MT7621 },
> {}
> };
>
> --
> 2.17.1
>
Reviewed-by: Ramon Fried <rfried....@gmail.com>
