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124 lines
3.9 KiB
Diff
124 lines
3.9 KiB
Diff
From 022066f50f53000679d31eb407693085f37b3f14 Mon Sep 17 00:00:00 2001
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From: Chen-Yu Tsai <wens@csie.org>
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Date: Fri, 17 Jan 2014 21:24:46 +0800
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Subject: [PATCH] net: stmmac: Use driver data and callbacks tied with
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compatible strings
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The stmmac driver core allows passing feature flags and callbacks via
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platform data. Add a similar stmmac_of_data to pass flags and callbacks
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tied to compatible strings. This allows us to extend stmmac with glue
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layers for different SoCs.
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Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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.../net/ethernet/stmicro/stmmac/stmmac_platform.c | 44 +++++++++++++++++-----
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include/linux/stmmac.h | 18 +++++++++
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2 files changed, 52 insertions(+), 10 deletions(-)
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diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
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index 82110f1..bf119db 100644
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--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
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+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
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@@ -26,8 +26,20 @@
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#include <linux/io.h>
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#include <linux/of.h>
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#include <linux/of_net.h>
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+#include <linux/of_device.h>
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#include "stmmac.h"
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+static const struct of_device_id stmmac_dt_ids[] = {
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+ /* SoC specific glue layers should come before generic bindings */
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+ { .compatible = "st,spear600-gmac"},
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+ { .compatible = "snps,dwmac-3.610"},
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+ { .compatible = "snps,dwmac-3.70a"},
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+ { .compatible = "snps,dwmac-3.710"},
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+ { .compatible = "snps,dwmac"},
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+ { /* sentinel */ }
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+};
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+MODULE_DEVICE_TABLE(of, stmmac_dt_ids);
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+
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#ifdef CONFIG_OF
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static int stmmac_probe_config_dt(struct platform_device *pdev,
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struct plat_stmmacenet_data *plat,
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@@ -35,10 +47,32 @@ static int stmmac_probe_config_dt(struct platform_device *pdev,
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{
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struct device_node *np = pdev->dev.of_node;
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struct stmmac_dma_cfg *dma_cfg;
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+ const struct of_device_id *device;
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if (!np)
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return -ENODEV;
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+ device = of_match_device(stmmac_dt_ids, &pdev->dev);
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+ if (!device)
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+ return -ENODEV;
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+
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+ if (device->data) {
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+ const struct stmmac_of_data *data = device->data;
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+ plat->has_gmac = data->has_gmac;
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+ plat->enh_desc = data->enh_desc;
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+ plat->tx_coe = data->tx_coe;
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+ plat->rx_coe = data->rx_coe;
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+ plat->bugged_jumbo = data->bugged_jumbo;
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+ plat->pmt = data->pmt;
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+ plat->riwt_off = data->riwt_off;
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+ plat->fix_mac_speed = data->fix_mac_speed;
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+ plat->bus_setup = data->bus_setup;
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+ plat->setup = data->setup;
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+ plat->free = data->free;
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+ plat->init = data->init;
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+ plat->exit = data->exit;
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+ }
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+
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*mac = of_get_mac_address(np);
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plat->interface = of_get_phy_mode(np);
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@@ -259,16 +293,6 @@ static int stmmac_pltfr_resume(struct device *dev)
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static SIMPLE_DEV_PM_OPS(stmmac_pltfr_pm_ops,
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stmmac_pltfr_suspend, stmmac_pltfr_resume);
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-static const struct of_device_id stmmac_dt_ids[] = {
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- { .compatible = "st,spear600-gmac"},
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- { .compatible = "snps,dwmac-3.610"},
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- { .compatible = "snps,dwmac-3.70a"},
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- { .compatible = "snps,dwmac-3.710"},
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- { .compatible = "snps,dwmac"},
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- { /* sentinel */ }
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-};
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-MODULE_DEVICE_TABLE(of, stmmac_dt_ids);
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-
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struct platform_driver stmmac_pltfr_driver = {
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.probe = stmmac_pltfr_probe,
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.remove = stmmac_pltfr_remove,
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diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
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index 0a5a7ac..1367974 100644
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--- a/include/linux/stmmac.h
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+++ b/include/linux/stmmac.h
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@@ -121,4 +121,22 @@ struct plat_stmmacenet_data {
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void *custom_data;
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void *bsp_priv;
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};
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+
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+/* of_data for SoC glue layer device tree bindings */
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+
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+struct stmmac_of_data {
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+ int has_gmac;
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+ int enh_desc;
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+ int tx_coe;
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+ int rx_coe;
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+ int bugged_jumbo;
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+ int pmt;
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+ int riwt_off;
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+ void (*fix_mac_speed)(void *priv, unsigned int speed);
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+ void (*bus_setup)(void __iomem *ioaddr);
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+ void *(*setup)(struct platform_device *pdev);
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+ void (*free)(struct platform_device *pdev, void *priv);
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+ int (*init)(struct platform_device *pdev, void *priv);
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+ void (*exit)(struct platform_device *pdev, void *priv);
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+};
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#endif
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--
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1.8.5.5
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