stmmac_pcs.c

 1// SPDX-License-Identifier: GPL-2.0-only
 2#include "stmmac.h"
 3#include "stmmac_pcs.h"
 4
 5static int dwmac_integrated_pcs_enable(struct phylink_pcs *pcs)
 6{
 7	struct stmmac_pcs *spcs = phylink_pcs_to_stmmac_pcs(pcs);
 8
 9	stmmac_mac_irq_modify(spcs->priv, 0, spcs->int_mask);
10
11	return 0;
12}
13
14static void dwmac_integrated_pcs_disable(struct phylink_pcs *pcs)
15{
16	struct stmmac_pcs *spcs = phylink_pcs_to_stmmac_pcs(pcs);
17
18	stmmac_mac_irq_modify(spcs->priv, spcs->int_mask, 0);
19}
20
21static void dwmac_integrated_pcs_get_state(struct phylink_pcs *pcs,
22					   unsigned int neg_mode,
23					   struct phylink_link_state *state)
24{
25	state->link = false;
26}
27
28static int dwmac_integrated_pcs_config(struct phylink_pcs *pcs,
29				       unsigned int neg_mode,
30				       phy_interface_t interface,
31				       const unsigned long *advertising,
32				       bool permit_pause_to_mac)
33{
34	struct stmmac_pcs *spcs = phylink_pcs_to_stmmac_pcs(pcs);
35
36	dwmac_ctrl_ane(spcs->base, 0, 1, spcs->priv->hw->reverse_sgmii_enable);
37
38	return 0;
39}
40
41static const struct phylink_pcs_ops dwmac_integrated_pcs_ops = {
42	.pcs_enable = dwmac_integrated_pcs_enable,
43	.pcs_disable = dwmac_integrated_pcs_disable,
44	.pcs_get_state = dwmac_integrated_pcs_get_state,
45	.pcs_config = dwmac_integrated_pcs_config,
46};
47
48int stmmac_integrated_pcs_init(struct stmmac_priv *priv, unsigned int offset,
49			       u32 int_mask)
50{
51	struct stmmac_pcs *spcs;
52
53	spcs = devm_kzalloc(priv->device, sizeof(*spcs), GFP_KERNEL);
54	if (!spcs)
55		return -ENOMEM;
56
57	spcs->priv = priv;
58	spcs->base = priv->ioaddr + offset;
59	spcs->int_mask = int_mask;
60	spcs->pcs.ops = &dwmac_integrated_pcs_ops;
61
62	__set_bit(PHY_INTERFACE_MODE_SGMII, spcs->pcs.supported_interfaces);
63
64	priv->integrated_pcs = spcs;
65
66	return 0;
67}