From f9f0024bd9bf04a58b64bae356be4c04022d23bc Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Mon, 11 Nov 2024 16:40:07 +0000 Subject: [PATCH] net: macb: Add support for Raspberry Pi RP1 ethernet controller The RP1 chip has the Cadence GEM block, but wants the tx_clock to always run at 125MHz, in the same way as sama7g5. Add the relevant configuration. Signed-off-by: Dave Stevenson --- drivers/net/ethernet/cadence/macb_main.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -5023,6 +5023,17 @@ static const struct macb_config versal_c .usrio = &macb_default_usrio, }; +static const struct macb_config raspberrypi_rp1_config = { + .caps = MACB_CAPS_GIGABIT_MODE_AVAILABLE | MACB_CAPS_CLK_HW_CHG | + MACB_CAPS_JUMBO | + MACB_CAPS_GEM_HAS_PTP, + .dma_burst_length = 16, + .clk_init = macb_clk_init, + .init = macb_init, + .usrio = &macb_default_usrio, + .jumbo_max_len = 10240, +}; + static const struct of_device_id macb_dt_ids[] = { { .compatible = "cdns,at91sam9260-macb", .data = &at91sam9260_config }, { .compatible = "cdns,macb" }, @@ -5043,6 +5054,7 @@ static const struct of_device_id macb_dt { .compatible = "microchip,mpfs-macb", .data = &mpfs_config }, { .compatible = "microchip,sama7g5-gem", .data = &sama7g5_gem_config }, { .compatible = "microchip,sama7g5-emac", .data = &sama7g5_emac_config }, + { .compatible = "raspberrypi,rp1-gem", .data = &raspberrypi_rp1_config }, { .compatible = "xlnx,zynqmp-gem", .data = &zynqmp_config}, { .compatible = "xlnx,zynq-gem", .data = &zynq_config }, { .compatible = "xlnx,versal-gem", .data = &versal_config},