2 * Copyright 2015 Freescale Semiconductor, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <asm/arch/fsl_serdes.h>
11 #include <asm/arch/soc.h>
13 #ifdef CONFIG_SYS_FSL_SRDS_1
14 static u8 serdes1_prtcl_map[SERDES_PRCTL_COUNT];
16 #ifdef CONFIG_SYS_FSL_SRDS_2
17 static u8 serdes2_prtcl_map[SERDES_PRCTL_COUNT];
20 int is_serdes_configured(enum srds_prtcl device)
24 #ifdef CONFIG_SYS_FSL_SRDS_1
25 ret |= serdes1_prtcl_map[device];
27 #ifdef CONFIG_SYS_FSL_SRDS_2
28 ret |= serdes2_prtcl_map[device];
34 int serdes_get_first_lane(u32 sd, enum srds_prtcl device)
36 struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
37 u32 cfg = gur_in32(&gur->rcwsr[4]);
41 #ifdef CONFIG_SYS_FSL_SRDS_1
43 cfg &= FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_MASK;
44 cfg >>= FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_SHIFT;
47 #ifdef CONFIG_SYS_FSL_SRDS_2
49 cfg &= FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_MASK;
50 cfg >>= FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_SHIFT;
54 printf("invalid SerDes%d\n", sd);
58 /* Is serdes enabled at all? */
59 if (unlikely(cfg == 0))
62 for (i = 0; i < SRDS_MAX_LANES; i++) {
63 if (serdes_get_prtcl(sd, cfg, i) == device)
70 int get_serdes_protocol(void)
72 struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
73 u32 cfg = gur_in32(&gur->rcwsr[4]) &
74 FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_MASK;
75 cfg >>= FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_SHIFT;
80 const char *serdes_clock_to_string(u32 clock)
83 case SRDS_PLLCR0_RFCK_SEL_100:
85 case SRDS_PLLCR0_RFCK_SEL_125:
87 case SRDS_PLLCR0_RFCK_SEL_156_25:
94 void serdes_init(u32 sd, u32 sd_addr, u32 sd_prctl_mask, u32 sd_prctl_shift,
95 u8 serdes_prtcl_map[SERDES_PRCTL_COUNT])
97 struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
101 memset(serdes_prtcl_map, 0, sizeof(u8) * SERDES_PRCTL_COUNT);
103 cfg = gur_in32(&gur->rcwsr[4]) & sd_prctl_mask;
104 cfg >>= sd_prctl_shift;
105 printf("Using SERDES%d Protocol: %d (0x%x)\n", sd + 1, cfg, cfg);
107 if (!is_serdes_prtcl_valid(sd, cfg))
108 printf("SERDES%d[PRTCL] = 0x%x is not valid\n", sd + 1, cfg);
110 for (lane = 0; lane < SRDS_MAX_LANES; lane++) {
111 enum srds_prtcl lane_prtcl = serdes_get_prtcl(sd, cfg, lane);
113 if (unlikely(lane_prtcl >= SERDES_PRCTL_COUNT))
114 debug("Unknown SerDes lane protocol %d\n", lane_prtcl);
116 serdes_prtcl_map[lane_prtcl] = 1;
120 void fsl_serdes_init(void)
122 #ifdef CONFIG_SYS_FSL_SRDS_1
123 serdes_init(FSL_SRDS_1,
124 CONFIG_SYS_FSL_SERDES_ADDR,
125 FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_MASK,
126 FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_SHIFT,
129 #ifdef CONFIG_SYS_FSL_SRDS_2
130 serdes_init(FSL_SRDS_2,
131 CONFIG_SYS_FSL_SERDES_ADDR,
132 FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_MASK,
133 FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_SHIFT,