xref: /openbmc/u-boot/drivers/net/ldpaa_eth/lx2160a.c (revision 3ba98ed8)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2018 NXP
4  */
5 #include <common.h>
6 #include <phy.h>
7 #include <fsl-mc/ldpaa_wriop.h>
8 #include <asm/io.h>
9 #include <asm/arch/fsl_serdes.h>
10 #include <asm/arch/soc.h>
11 
12 u32 dpmac_to_devdisr[] = {
13 	[WRIOP1_DPMAC1] = FSL_CHASSIS3_DEVDISR2_DPMAC1,
14 	[WRIOP1_DPMAC2] = FSL_CHASSIS3_DEVDISR2_DPMAC2,
15 	[WRIOP1_DPMAC3] = FSL_CHASSIS3_DEVDISR2_DPMAC3,
16 	[WRIOP1_DPMAC4] = FSL_CHASSIS3_DEVDISR2_DPMAC4,
17 	[WRIOP1_DPMAC5] = FSL_CHASSIS3_DEVDISR2_DPMAC5,
18 	[WRIOP1_DPMAC6] = FSL_CHASSIS3_DEVDISR2_DPMAC6,
19 	[WRIOP1_DPMAC7] = FSL_CHASSIS3_DEVDISR2_DPMAC7,
20 	[WRIOP1_DPMAC8] = FSL_CHASSIS3_DEVDISR2_DPMAC8,
21 	[WRIOP1_DPMAC9] = FSL_CHASSIS3_DEVDISR2_DPMAC9,
22 	[WRIOP1_DPMAC10] = FSL_CHASSIS3_DEVDISR2_DPMAC10,
23 	[WRIOP1_DPMAC11] = FSL_CHASSIS3_DEVDISR2_DPMAC11,
24 	[WRIOP1_DPMAC12] = FSL_CHASSIS3_DEVDISR2_DPMAC12,
25 	[WRIOP1_DPMAC13] = FSL_CHASSIS3_DEVDISR2_DPMAC13,
26 	[WRIOP1_DPMAC14] = FSL_CHASSIS3_DEVDISR2_DPMAC14,
27 	[WRIOP1_DPMAC15] = FSL_CHASSIS3_DEVDISR2_DPMAC15,
28 	[WRIOP1_DPMAC16] = FSL_CHASSIS3_DEVDISR2_DPMAC16,
29 	[WRIOP1_DPMAC17] = FSL_CHASSIS3_DEVDISR2_DPMAC17,
30 	[WRIOP1_DPMAC18] = FSL_CHASSIS3_DEVDISR2_DPMAC18,
31 };
32 
33 static int is_device_disabled(int dpmac_id)
34 {
35 	struct ccsr_gur __iomem *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR;
36 	u32 devdisr2 = in_le32(&gur->devdisr2);
37 
38 	return dpmac_to_devdisr[dpmac_id] & devdisr2;
39 }
40 
41 void wriop_dpmac_disable(int dpmac_id)
42 {
43 	struct ccsr_gur __iomem *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR;
44 
45 	setbits_le32(&gur->devdisr2, dpmac_to_devdisr[dpmac_id]);
46 }
47 
48 void wriop_dpmac_enable(int dpmac_id)
49 {
50 	struct ccsr_gur __iomem *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR;
51 
52 	clrbits_le32(&gur->devdisr2, dpmac_to_devdisr[dpmac_id]);
53 }
54 
55 phy_interface_t wriop_dpmac_enet_if(int dpmac_id, int lane_prtcl)
56 {
57 	enum srds_prtcl;
58 
59 	if (is_device_disabled(dpmac_id + 1))
60 		return PHY_INTERFACE_MODE_NONE;
61 
62 	if (lane_prtcl >= SGMII1 && lane_prtcl <= SGMII18)
63 		return PHY_INTERFACE_MODE_SGMII;
64 
65 	if (lane_prtcl >= XFI1 && lane_prtcl <= XFI14)
66 		return PHY_INTERFACE_MODE_XGMII;
67 
68 	if (lane_prtcl >= _25GE1 && lane_prtcl <= _25GE10)
69 		return PHY_INTERFACE_MODE_25G_AUI;
70 
71 	if (lane_prtcl >= _40GE1 && lane_prtcl <= _40GE2)
72 		return PHY_INTERFACE_MODE_XLAUI;
73 
74 	if (lane_prtcl >= _50GE1 && lane_prtcl <= _50GE2)
75 		return PHY_INTERFACE_MODE_CAUI2;
76 
77 	if (lane_prtcl >= _100GE1 && lane_prtcl <= _100GE2)
78 		return PHY_INTERFACE_MODE_CAUI4;
79 
80 	return PHY_INTERFACE_MODE_NONE;
81 }
82 
83 #ifdef CONFIG_SYS_FSL_HAS_RGMII
84 void fsl_rgmii_init(void)
85 {
86 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
87 	u32 ec;
88 
89 #ifdef CONFIG_SYS_FSL_EC1
90 	ec = gur_in32(&gur->rcwsr[FSL_CHASSIS3_EC1_REGSR - 1])
91 		& FSL_CHASSIS3_EC1_REGSR_PRTCL_MASK;
92 	ec >>= FSL_CHASSIS3_EC1_REGSR_PRTCL_SHIFT;
93 
94 	if (!ec && (wriop_is_enabled_dpmac(17) == -ENODEV))
95 		wriop_init_dpmac_enet_if(17, PHY_INTERFACE_MODE_RGMII_ID);
96 #endif
97 
98 #ifdef CONFIG_SYS_FSL_EC2
99 	ec = gur_in32(&gur->rcwsr[FSL_CHASSIS3_EC2_REGSR - 1])
100 		& FSL_CHASSIS3_EC2_REGSR_PRTCL_MASK;
101 	ec >>= FSL_CHASSIS3_EC2_REGSR_PRTCL_SHIFT;
102 
103 	if (!ec && (wriop_is_enabled_dpmac(18) == -ENODEV))
104 		wriop_init_dpmac_enet_if(18, PHY_INTERFACE_MODE_RGMII_ID);
105 #endif
106 }
107 #endif
108