git.openwrt.org Git - openwrt/staging/thess.git/blob

   1 From 899714cba9b71401df9d97bb21e0471e6aa49712 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Mon, 11 Nov 2024 16:40:07 +0000
   4 Subject: [PATCH] net: macb: Add support for Raspberry Pi RP1 ethernet
   5  controller
   6
   7 The RP1 chip has the Cadence GEM block, but wants the tx_clock
   8 to always run at 125MHz, in the same way as sama7g5.
   9 Add the relevant configuration.
  10
  11 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  12 ---
  13  drivers/net/ethernet/cadence/macb_main.c | 12 ++++++++++++
  14  1 file changed, 12 insertions(+)
  15
  16 --- a/drivers/net/ethernet/cadence/macb_main.c
  17 +++ b/drivers/net/ethernet/cadence/macb_main.c
  18 @@ -5072,6 +5072,17 @@ static const struct macb_config versal_c
  19         .usrio = &macb_default_usrio,
  20  };
  21
  22 +static const struct macb_config raspberrypi_rp1_config = {
  23 +       .caps = MACB_CAPS_GIGABIT_MODE_AVAILABLE | MACB_CAPS_CLK_HW_CHG |
  24 +               MACB_CAPS_JUMBO |
  25 +               MACB_CAPS_GEM_HAS_PTP,
  26 +       .dma_burst_length = 16,
  27 +       .clk_init = macb_clk_init,
  28 +       .init = macb_init,
  29 +       .usrio = &macb_default_usrio,
  30 +       .jumbo_max_len = 10240,
  31 +};
  32 +
  33  static const struct of_device_id macb_dt_ids[] = {
  34         { .compatible = "cdns,at91sam9260-macb", .data = &at91sam9260_config },
  35         { .compatible = "cdns,macb" },
  36 @@ -5092,6 +5103,7 @@ static const struct of_device_id macb_dt
  37         { .compatible = "microchip,mpfs-macb", .data = &mpfs_config },
  38         { .compatible = "microchip,sama7g5-gem", .data = &sama7g5_gem_config },
  39         { .compatible = "microchip,sama7g5-emac", .data = &sama7g5_emac_config },
  40 +       { .compatible = "raspberrypi,rp1-gem", .data = &raspberrypi_rp1_config },
  41         { .compatible = "xlnx,zynqmp-gem", .data = &zynqmp_config},
  42         { .compatible = "xlnx,zynq-gem", .data = &zynq_config },
  43         { .compatible = "xlnx,versal-gem", .data = &versal_config},