1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
4 * Copyright 2007 Embedded Specialties, Inc.
5 * Joe Hamman joe.hamman@embeddedspecialties.com
6 *
7 * Copyright 2004 Freescale Semiconductor.
8 * Jeff Brown
9 * Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
10 *
11 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
12 */
13
14 #include <common.h>
15 #include <command.h>
16 #include <pci.h>
17 #include <asm/processor.h>
18 #include <asm/immap_86xx.h>
19 #include <asm/fsl_pci.h>
20 #include <fsl_ddr_sdram.h>
21 #include <asm/fsl_serdes.h>
22 #include <linux/libfdt.h>
23 #include <fdt_support.h>
24
25 DECLARE_GLOBAL_DATA_PTR;
26
27 long int fixed_sdram (void);
28
board_early_init_f(void)29 int board_early_init_f (void)
30 {
31 return 0;
32 }
33
checkboard(void)34 int checkboard (void)
35 {
36 puts ("Board: Wind River SBC8641D\n");
37
38 return 0;
39 }
40
dram_init(void)41 int dram_init(void)
42 {
43 long dram_size = 0;
44
45 #if defined(CONFIG_SPD_EEPROM)
46 dram_size = fsl_ddr_sdram();
47 #else
48 dram_size = fixed_sdram ();
49 #endif
50
51 debug (" DDR: ");
52 gd->ram_size = dram_size;
53
54 return 0;
55 }
56
57 #if defined(CONFIG_SYS_DRAM_TEST)
testdram(void)58 int testdram (void)
59 {
60 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
61 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
62 uint *p;
63
64 puts ("SDRAM test phase 1:\n");
65 for (p = pstart; p < pend; p++)
66 *p = 0xaaaaaaaa;
67
68 for (p = pstart; p < pend; p++) {
69 if (*p != 0xaaaaaaaa) {
70 printf ("SDRAM test fails at: %08x\n", (uint) p);
71 return 1;
72 }
73 }
74
75 puts ("SDRAM test phase 2:\n");
76 for (p = pstart; p < pend; p++)
77 *p = 0x55555555;
78
79 for (p = pstart; p < pend; p++) {
80 if (*p != 0x55555555) {
81 printf ("SDRAM test fails at: %08x\n", (uint) p);
82 return 1;
83 }
84 }
85
86 puts ("SDRAM test passed.\n");
87 return 0;
88 }
89 #endif
90
91 #if !defined(CONFIG_SPD_EEPROM)
92 /*
93 * Fixed sdram init -- doesn't use serial presence detect.
94 */
fixed_sdram(void)95 long int fixed_sdram (void)
96 {
97 #if !defined(CONFIG_SYS_RAMBOOT)
98 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
99 volatile struct ccsr_ddr *ddr = &immap->im_ddr1;
100
101 ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS;
102 ddr->cs1_bnds = CONFIG_SYS_DDR_CS1_BNDS;
103 ddr->cs2_bnds = CONFIG_SYS_DDR_CS2_BNDS;
104 ddr->cs3_bnds = CONFIG_SYS_DDR_CS3_BNDS;
105 ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG;
106 ddr->cs1_config = CONFIG_SYS_DDR_CS1_CONFIG;
107 ddr->cs2_config = CONFIG_SYS_DDR_CS2_CONFIG;
108 ddr->cs3_config = CONFIG_SYS_DDR_CS3_CONFIG;
109 ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
110 ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
111 ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
112 ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
113 ddr->sdram_cfg = CONFIG_SYS_DDR_CFG_1A;
114 ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CFG_2;
115 ddr->sdram_mode = CONFIG_SYS_DDR_MODE_1;
116 ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2;
117 ddr->sdram_md_cntl = CONFIG_SYS_DDR_MODE_CTL;
118 ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL;
119 ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT;
120 ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL;
121
122 asm ("sync;isync");
123
124 udelay (500);
125
126 ddr->sdram_cfg = CONFIG_SYS_DDR_CFG_1B;
127 asm ("sync; isync");
128
129 udelay (500);
130 ddr = &immap->im_ddr2;
131
132 ddr->cs0_bnds = CONFIG_SYS_DDR2_CS0_BNDS;
133 ddr->cs1_bnds = CONFIG_SYS_DDR2_CS1_BNDS;
134 ddr->cs2_bnds = CONFIG_SYS_DDR2_CS2_BNDS;
135 ddr->cs3_bnds = CONFIG_SYS_DDR2_CS3_BNDS;
136 ddr->cs0_config = CONFIG_SYS_DDR2_CS0_CONFIG;
137 ddr->cs1_config = CONFIG_SYS_DDR2_CS1_CONFIG;
138 ddr->cs2_config = CONFIG_SYS_DDR2_CS2_CONFIG;
139 ddr->cs3_config = CONFIG_SYS_DDR2_CS3_CONFIG;
140 ddr->timing_cfg_3 = CONFIG_SYS_DDR2_EXT_REFRESH;
141 ddr->timing_cfg_0 = CONFIG_SYS_DDR2_TIMING_0;
142 ddr->timing_cfg_1 = CONFIG_SYS_DDR2_TIMING_1;
143 ddr->timing_cfg_2 = CONFIG_SYS_DDR2_TIMING_2;
144 ddr->sdram_cfg = CONFIG_SYS_DDR2_CFG_1A;
145 ddr->sdram_cfg_2 = CONFIG_SYS_DDR2_CFG_2;
146 ddr->sdram_mode = CONFIG_SYS_DDR2_MODE_1;
147 ddr->sdram_mode_2 = CONFIG_SYS_DDR2_MODE_2;
148 ddr->sdram_md_cntl = CONFIG_SYS_DDR2_MODE_CTL;
149 ddr->sdram_interval = CONFIG_SYS_DDR2_INTERVAL;
150 ddr->sdram_data_init = CONFIG_SYS_DDR2_DATA_INIT;
151 ddr->sdram_clk_cntl = CONFIG_SYS_DDR2_CLK_CTRL;
152
153 asm ("sync;isync");
154
155 udelay (500);
156
157 ddr->sdram_cfg = CONFIG_SYS_DDR2_CFG_1B;
158 asm ("sync; isync");
159
160 udelay (500);
161 #endif
162 return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
163 }
164 #endif /* !defined(CONFIG_SPD_EEPROM) */
165
166 #if defined(CONFIG_PCI)
167 /*
168 * Initialize PCI Devices, report devices found.
169 */
170
pci_init_board(void)171 void pci_init_board(void)
172 {
173 fsl_pcie_init_board(0);
174 }
175 #endif /* CONFIG_PCI */
176
177
178 #if defined(CONFIG_OF_BOARD_SETUP)
ft_board_setup(void * blob,bd_t * bd)179 int ft_board_setup(void *blob, bd_t *bd)
180 {
181 ft_cpu_setup(blob, bd);
182
183 FT_FSL_PCI_SETUP;
184
185 return 0;
186 }
187 #endif
188
sbc8641d_reset_board(void)189 void sbc8641d_reset_board (void)
190 {
191 puts ("Resetting board....\n");
192 }
193
194 /*
195 * get_board_sys_clk
196 * Clock is fixed at 1GHz on this board. Used for CONFIG_SYS_CLK_FREQ
197 */
198
get_board_sys_clk(ulong dummy)199 unsigned long get_board_sys_clk (ulong dummy)
200 {
201 int i;
202 ulong val = 0;
203
204 i = 5;
205 i &= 0x07;
206
207 switch (i) {
208 case 0:
209 val = 33000000;
210 break;
211 case 1:
212 val = 40000000;
213 break;
214 case 2:
215 val = 50000000;
216 break;
217 case 3:
218 val = 66000000;
219 break;
220 case 4:
221 val = 83000000;
222 break;
223 case 5:
224 val = 100000000;
225 break;
226 case 6:
227 val = 134000000;
228 break;
229 case 7:
230 val = 166000000;
231 break;
232 }
233
234 return val;
235 }
236
board_reset(void)237 void board_reset(void)
238 {
239 #ifdef CONFIG_SYS_RESET_ADDRESS
240 ulong addr = CONFIG_SYS_RESET_ADDRESS;
241
242 /* flush and disable I/D cache */
243 __asm__ __volatile__ ("mfspr 3, 1008" ::: "r3");
244 __asm__ __volatile__ ("ori 5, 5, 0xcc00" ::: "r5");
245 __asm__ __volatile__ ("ori 4, 3, 0xc00" ::: "r4");
246 __asm__ __volatile__ ("andc 5, 3, 5" ::: "r5");
247 __asm__ __volatile__ ("sync");
248 __asm__ __volatile__ ("mtspr 1008, 4");
249 __asm__ __volatile__ ("isync");
250 __asm__ __volatile__ ("sync");
251 __asm__ __volatile__ ("mtspr 1008, 5");
252 __asm__ __volatile__ ("isync");
253 __asm__ __volatile__ ("sync");
254
255 /*
256 * SRR0 has system reset vector, SRR1 has default MSR value
257 * rfi restores MSR from SRR1 and sets the PC to the SRR0 value
258 */
259 __asm__ __volatile__ ("mtspr 26, %0" :: "r" (addr));
260 __asm__ __volatile__ ("li 4, (1 << 6)" ::: "r4");
261 __asm__ __volatile__ ("mtspr 27, 4");
262 __asm__ __volatile__ ("rfi");
263 #endif
264 }
265