From 215f2064c365ffc2b9fad65248fee7bcf70f92b1 Mon Sep 17 00:00:00 2001 From: Ashok Reddy Soma Date: Thu, 24 Jun 2021 00:34:40 -0600 Subject: [PATCH] net: xilinx: axi_emac: Cleanup of of_to_plat() There are lot of accesses to priv data in of_to_plat(), which is incorrect. Create a platform data structure and use it in of_to_plat(), then copy all platform data to priv data in probe. Signed-off-by: Ashok Reddy Soma Reviewed-by: Ramon Fried Signed-off-by: Michal Simek --- drivers/net/xilinx_axi_emac.c | 47 +++++++++++++++++++++++++++++-------------- 1 file changed, 32 insertions(+), 15 deletions(-) diff --git a/drivers/net/xilinx_axi_emac.c b/drivers/net/xilinx_axi_emac.c index 2ce6271..cfc6082 100644 --- a/drivers/net/xilinx_axi_emac.c +++ b/drivers/net/xilinx_axi_emac.c @@ -87,6 +87,16 @@ struct axidma_reg { u32 tail_hi; /* TAILDESC high 32 bit */ }; +/* Platform data structures */ +struct axidma_plat { + struct eth_pdata eth_pdata; + struct axidma_reg *dmatx; + struct axidma_reg *dmarx; + int phyaddr; + u8 eth_hasnobuf; + int phy_of_handle; +}; + /* Private driver structures */ struct axidma_priv { struct axidma_reg *dmatx; @@ -690,9 +700,20 @@ static int axiemac_miiphy_write(struct mii_dev *bus, int addr, int devad, static int axi_emac_probe(struct udevice *dev) { + struct axidma_plat *plat = dev_get_plat(dev); + struct eth_pdata *pdata = &plat->eth_pdata; struct axidma_priv *priv = dev_get_priv(dev); int ret; + priv->iobase = (struct axi_regs *)pdata->iobase; + priv->dmatx = plat->dmatx; + /* RX channel offset is 0x30 */ + priv->dmarx = (struct axidma_reg *)((phys_addr_t)priv->dmatx + 0x30); + priv->eth_hasnobuf = plat->eth_hasnobuf; + priv->phyaddr = plat->phyaddr; + priv->phy_of_handle = plat->phy_of_handle; + priv->interface = pdata->phy_interface; + priv->bus = mdio_alloc(); priv->bus->read = axiemac_miiphy_read; priv->bus->write = axiemac_miiphy_write; @@ -729,14 +750,13 @@ static const struct eth_ops axi_emac_ops = { static int axi_emac_of_to_plat(struct udevice *dev) { - struct eth_pdata *pdata = dev_get_plat(dev); - struct axidma_priv *priv = dev_get_priv(dev); + struct axidma_plat *plat = dev_get_plat(dev); + struct eth_pdata *pdata = &plat->eth_pdata; int node = dev_of_offset(dev); int offset = 0; const char *phy_mode; pdata->iobase = dev_read_addr(dev); - priv->iobase = (struct axi_regs *)pdata->iobase; offset = fdtdec_lookup_phandle(gd->fdt_blob, node, "axistream-connected"); @@ -744,21 +764,19 @@ static int axi_emac_of_to_plat(struct udevice *dev) printf("%s: axistream is not found\n", __func__); return -EINVAL; } - priv->dmatx = (struct axidma_reg *)fdtdec_get_addr(gd->fdt_blob, + plat->dmatx = (struct axidma_reg *)fdtdec_get_addr(gd->fdt_blob, offset, "reg"); - if (!priv->dmatx) { + if (!plat->dmatx) { printf("%s: axi_dma register space not found\n", __func__); return -EINVAL; } - /* RX channel offset is 0x30 */ - priv->dmarx = (struct axidma_reg *)((phys_addr_t)priv->dmatx + 0x30); - priv->phyaddr = -1; + plat->phyaddr = -1; offset = fdtdec_lookup_phandle(gd->fdt_blob, node, "phy-handle"); if (offset > 0) { - priv->phyaddr = fdtdec_get_int(gd->fdt_blob, offset, "reg", -1); - priv->phy_of_handle = offset; + plat->phyaddr = fdtdec_get_int(gd->fdt_blob, offset, "reg", -1); + plat->phy_of_handle = offset; } phy_mode = fdt_getprop(gd->fdt_blob, node, "phy-mode", NULL); @@ -768,13 +786,12 @@ static int axi_emac_of_to_plat(struct udevice *dev) printf("%s: Invalid PHY interface '%s'\n", __func__, phy_mode); return -EINVAL; } - priv->interface = pdata->phy_interface; - priv->eth_hasnobuf = fdtdec_get_bool(gd->fdt_blob, node, + plat->eth_hasnobuf = fdtdec_get_bool(gd->fdt_blob, node, "xlnx,eth-hasnobuf"); - printf("AXI EMAC: %lx, phyaddr %d, interface %s\n", (ulong)priv->iobase, - priv->phyaddr, phy_string_for_interface(priv->interface)); + printf("AXI EMAC: %lx, phyaddr %d, interface %s\n", (ulong)pdata->iobase, + plat->phyaddr, phy_string_for_interface(pdata->phy_interface)); return 0; } @@ -793,5 +810,5 @@ U_BOOT_DRIVER(axi_emac) = { .remove = axi_emac_remove, .ops = &axi_emac_ops, .priv_auto = sizeof(struct axidma_priv), - .plat_auto = sizeof(struct eth_pdata), + .plat_auto = sizeof(struct axidma_plat), }; -- 2.7.4