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net: ethernet: fec: move GPR register offset and bit into DT

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The commit da722186f6 (net: fec: set GPR bit on suspend by DT
configuration) set the GPR reigster offset and bit in driver for
wake on lan feature.

But it introduces two issues here:
- one SOC has two instances, they have different bit
- different SOCs may have different offset and bit

So to support wake-on-lan feature on other i.MX platforms, it should
configure the GPR reigster offset and bit from DT.

So the patch is to improve the commit da722186f6 (net: fec: set GPR
bit on suspend by DT configuration) to support multiple ethernet
instances on i.MX series.

v2:
 * switch back to store the quirks bitmask in driver_data
v3:
 * suggested by Sascha Hauer, use a struct fec_devinfo for
   abstracting differences between different hardware variants,
   it can give more freedom to describe the differences.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Fugang Duan 2020-05-26 00:27:10 +08:00 committed by David S. Miller
parent 09d0310f07
commit 8a448bf832
1 changed files with 12 additions and 12 deletions
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24
drivers/net/ethernet/freescale/fec_main.c
View File

@ -88,8 +88,6 @@ static void fec_enet_itr_coal_init(struct net_device *ndev);
struct fec_devinfo {
u32 quirks;
u8 stop_gpr_reg;
u8 stop_gpr_bit;
};
static const struct fec_devinfo fec_imx25_info = {
@ -112,8 +110,6 @@ static const struct fec_devinfo fec_imx6q_info = {
FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM |
FEC_QUIRK_HAS_VLAN | FEC_QUIRK_ERR006358 |
FEC_QUIRK_HAS_RACC,
.stop_gpr_reg = 0x34,
.stop_gpr_bit = 27,
};
static const struct fec_devinfo fec_mvf600_info = {
@ -3476,19 +3472,23 @@ static int fec_enet_get_irq_cnt(struct platform_device *pdev)
}
static int fec_enet_init_stop_mode(struct fec_enet_private *fep,
struct fec_devinfo *dev_info,
struct device_node *np)
{
struct device_node *gpr_np;
u32 out_val[3];
int ret = 0;
if (!dev_info)
return 0;
gpr_np = of_parse_phandle(np, "gpr", 0);
gpr_np = of_parse_phandle(np, "fsl,stop-mode", 0);
if (!gpr_np)
return 0;
ret = of_property_read_u32_array(np, "fsl,stop-mode", out_val,
ARRAY_SIZE(out_val));
if (ret) {
dev_dbg(&fep->pdev->dev, "no stop mode property\n");
return ret;
}
fep->stop_gpr.gpr = syscon_node_to_regmap(gpr_np);
if (IS_ERR(fep->stop_gpr.gpr)) {
dev_err(&fep->pdev->dev, "could not find gpr regmap\n");
@ -3497,8 +3497,8 @@ static int fec_enet_init_stop_mode(struct fec_enet_private *fep,
goto out;
}
fep->stop_gpr.reg = dev_info->stop_gpr_reg;
fep->stop_gpr.bit = dev_info->stop_gpr_bit;
fep->stop_gpr.reg = out_val[1];
fep->stop_gpr.bit = out_val[2];
out:
of_node_put(gpr_np);
@ -3575,7 +3575,7 @@ fec_probe(struct platform_device *pdev)
if (of_get_property(np, "fsl,magic-packet", NULL))
fep->wol_flag |= FEC_WOL_HAS_MAGIC_PACKET;
ret = fec_enet_init_stop_mode(fep, dev_info, np);
ret = fec_enet_init_stop_mode(fep, np);
if (ret)
goto failed_stop_mode;