1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2011,2012 Freescale Semiconductor, Inc.
4 */
5
6 #include <common.h>
7 #include <command.h>
8 #include <netdev.h>
9 #include <linux/compiler.h>
10 #include <asm/mmu.h>
11 #include <asm/processor.h>
12 #include <asm/cache.h>
13 #include <asm/immap_85xx.h>
14 #include <asm/fsl_law.h>
15 #include <asm/fsl_serdes.h>
16 #include <asm/fsl_liodn.h>
17 #include <fm_eth.h>
18
19 extern void pci_of_setup(void *blob, bd_t *bd);
20
21 #include "cpld.h"
22
23 DECLARE_GLOBAL_DATA_PTR;
24
checkboard(void)25 int checkboard(void)
26 {
27 u8 sw;
28 struct cpu_type *cpu = gd->arch.cpu;
29 unsigned int i;
30
31 printf("Board: %sRDB, ", cpu->name);
32 printf("CPLD version: %d.%d ", CPLD_READ(cpld_ver),
33 CPLD_READ(cpld_ver_sub));
34
35 sw = CPLD_READ(fbank_sel);
36 printf("vBank: %d\n", sw & 0x1);
37
38 /*
39 * Display the actual SERDES reference clocks as configured by the
40 * dip switches on the board. Note that the SWx registers could
41 * technically be set to force the reference clocks to match the
42 * values that the SERDES expects (or vice versa). For now, however,
43 * we just display both values and hope the user notices when they
44 * don't match.
45 */
46 puts("SERDES Reference Clocks: ");
47 sw = in_8(&CPLD_SW(2)) >> 2;
48 for (i = 0; i < 2; i++) {
49 static const char * const freq[][3] = {{"0", "100", "125"},
50 {"100", "156.25", "125"}
51 };
52 unsigned int clock = (sw >> (2 * i)) & 3;
53
54 printf("Bank%u=%sMhz ", i+1, freq[i][clock]);
55 }
56 puts("\n");
57
58 return 0;
59 }
60
board_early_init_f(void)61 int board_early_init_f(void)
62 {
63 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
64
65 /* board only uses the DDR_MCK0/1, so disable the DDR_MCK2/3 */
66 setbits_be32(&gur->ddrclkdr, 0x000f000f);
67
68 return 0;
69 }
70
71 #define CPLD_LANE_A_SEL 0x1
72 #define CPLD_LANE_G_SEL 0x2
73 #define CPLD_LANE_C_SEL 0x4
74 #define CPLD_LANE_D_SEL 0x8
75
board_config_lanes_mux(void)76 void board_config_lanes_mux(void)
77 {
78 ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
79 int srds_prtcl = (in_be32(&gur->rcwsr[4]) &
80 FSL_CORENET_RCWSR4_SRDS_PRTCL) >> 26;
81
82 u8 mux = 0;
83 switch (srds_prtcl) {
84 case 0x2:
85 case 0x5:
86 case 0x9:
87 case 0xa:
88 case 0xf:
89 break;
90 case 0x8:
91 mux |= CPLD_LANE_C_SEL | CPLD_LANE_D_SEL;
92 break;
93 case 0x14:
94 mux |= CPLD_LANE_A_SEL;
95 break;
96 case 0x17:
97 mux |= CPLD_LANE_G_SEL;
98 break;
99 case 0x16:
100 case 0x19:
101 case 0x1a:
102 mux |= CPLD_LANE_G_SEL | CPLD_LANE_C_SEL | CPLD_LANE_D_SEL;
103 break;
104 case 0x1c:
105 mux |= CPLD_LANE_G_SEL | CPLD_LANE_A_SEL;
106 break;
107 default:
108 printf("Fman:Unsupported SerDes Protocol 0x%02x\n", srds_prtcl);
109 break;
110 }
111 CPLD_WRITE(serdes_mux, mux);
112 }
113
board_early_init_r(void)114 int board_early_init_r(void)
115 {
116 const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
117 int flash_esel = find_tlb_idx((void *)flashbase, 1);
118
119 /*
120 * Remap Boot flash + PROMJET region to caching-inhibited
121 * so that flash can be erased properly.
122 */
123
124 /* Flush d-cache and invalidate i-cache of any FLASH data */
125 flush_dcache();
126 invalidate_icache();
127
128 if (flash_esel == -1) {
129 /* very unlikely unless something is messed up */
130 puts("Error: Could not find TLB for FLASH BASE\n");
131 flash_esel = 2; /* give our best effort to continue */
132 } else {
133 /* invalidate existing TLB entry for flash + promjet */
134 disable_tlb(flash_esel);
135 }
136
137 set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
138 MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
139 0, flash_esel, BOOKE_PAGESZ_256M, 1);
140
141 board_config_lanes_mux();
142
143 return 0;
144 }
145
get_board_sys_clk(unsigned long dummy)146 unsigned long get_board_sys_clk(unsigned long dummy)
147 {
148 u8 sysclk_conf = CPLD_READ(sysclk_sw1);
149
150 switch (sysclk_conf & 0x7) {
151 case CPLD_SYSCLK_83:
152 return 83333333;
153 case CPLD_SYSCLK_100:
154 return 100000000;
155 default:
156 return 66666666;
157 }
158 }
159
160 #define NUM_SRDS_BANKS 2
161
misc_init_r(void)162 int misc_init_r(void)
163 {
164 serdes_corenet_t *regs = (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR;
165 u32 actual[NUM_SRDS_BANKS];
166 unsigned int i;
167 u8 sw;
168 static const int freq[][3] = {
169 {0, SRDS_PLLCR0_RFCK_SEL_100, SRDS_PLLCR0_RFCK_SEL_125},
170 {SRDS_PLLCR0_RFCK_SEL_100, SRDS_PLLCR0_RFCK_SEL_156_25,
171 SRDS_PLLCR0_RFCK_SEL_125}
172 };
173
174 sw = in_8(&CPLD_SW(2)) >> 2;
175 for (i = 0; i < NUM_SRDS_BANKS; i++) {
176 unsigned int clock = (sw >> (2 * i)) & 3;
177 if (clock == 0x3) {
178 printf("Warning: SDREFCLK%u switch setting of '11' is "
179 "unsupported\n", i + 1);
180 break;
181 }
182 if (i == 0 && clock == 0)
183 puts("Warning: SDREFCLK1 switch setting of"
184 "'00' is unsupported\n");
185 else
186 actual[i] = freq[i][clock];
187
188 /*
189 * PC board uses a different CPLD with PB board, this CPLD
190 * has cpld_ver_sub = 1, and pcba_ver = 5. But CPLD on PB
191 * board has cpld_ver_sub = 0, and pcba_ver = 4.
192 */
193 if ((i == 1) && (CPLD_READ(cpld_ver_sub) == 1) &&
194 (CPLD_READ(pcba_ver) == 5)) {
195 /* PC board bank2 frequency */
196 actual[i] = freq[i-1][clock];
197 }
198 }
199
200 for (i = 0; i < NUM_SRDS_BANKS; i++) {
201 u32 expected = in_be32(®s->bank[i].pllcr0);
202 expected &= SRDS_PLLCR0_RFCK_SEL_MASK;
203 if (expected != actual[i]) {
204 printf("Warning: SERDES bank %u expects reference clock"
205 " %sMHz, but actual is %sMHz\n", i + 1,
206 serdes_clock_to_string(expected),
207 serdes_clock_to_string(actual[i]));
208 }
209 }
210
211 return 0;
212 }
213
ft_board_setup(void * blob,bd_t * bd)214 int ft_board_setup(void *blob, bd_t *bd)
215 {
216 phys_addr_t base;
217 phys_size_t size;
218
219 ft_cpu_setup(blob, bd);
220
221 base = env_get_bootm_low();
222 size = env_get_bootm_size();
223
224 fdt_fixup_memory(blob, (u64)base, (u64)size);
225
226 #if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB)
227 fsl_fdt_fixup_dr_usb(blob, bd);
228 #endif
229
230 #ifdef CONFIG_PCI
231 pci_of_setup(blob, bd);
232 #endif
233
234 fdt_fixup_liodn(blob);
235 #ifdef CONFIG_SYS_DPAA_FMAN
236 fdt_fixup_fman_ethernet(blob);
237 #endif
238
239 return 0;
240 }
241