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83d290c5 1// SPDX-License-Identifier: GPL-2.0+
11c45ebd 2/*
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3 * Copyright 2007,2009 Wind River Systems, Inc. <www.windriver.com>
4 *
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5 * Copyright 2007 Embedded Specialties, Inc.
6 *
7 * Copyright 2004, 2007 Freescale Semiconductor.
8 *
9 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
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10 */
11
12#include <common.h>
2cf431c2 13#include <init.h>
90526e9f 14#include <net.h>
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15#include <pci.h>
16#include <asm/processor.h>
17#include <asm/immap_85xx.h>
c8514622 18#include <asm/fsl_pci.h>
5614e71b 19#include <fsl_ddr_sdram.h>
5d27e02c 20#include <asm/fsl_serdes.h>
a30a549a 21#include <spd_sdram.h>
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22#include <netdev.h>
23#include <tsec.h>
11c45ebd 24#include <miiphy.h>
b08c8c48 25#include <linux/libfdt.h>
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26#include <fdt_support.h>
27
11c45ebd 28void local_bus_init(void);
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29
30int board_early_init_f (void)
31{
32 return 0;
33}
34
35int checkboard (void)
36{
6d0f6bcf
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37 volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
38 volatile u_char *rev= (void *)CONFIG_SYS_BD_REV;
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39
40 printf ("Board: Wind River SBC8548 Rev. 0x%01x\n",
0c7e4d45 41 in_8(rev) >> 4);
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42
43 /*
44 * Initialize local bus.
45 */
46 local_bus_init ();
47
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48 out_be32(&ecm->eedr, 0xffffffff); /* clear ecm errors */
49 out_be32(&ecm->eeer, 0xffffffff); /* enable ecm errors */
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50 return 0;
51}
52
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53/*
54 * Initialize Local Bus
55 */
56void
57local_bus_init(void)
58{
6d0f6bcf 59 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
f51cdaf1 60 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
11c45ebd 61
e2b363ff 62 uint clkdiv, lbc_mhz, lcrr = CONFIG_SYS_LBC_LCRR;
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63 sys_info_t sysinfo;
64
65 get_sys_info(&sysinfo);
e2b363ff 66
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67 lbc_mhz = sysinfo.freq_localbus / 1000000;
68 clkdiv = sysinfo.freq_systembus / sysinfo.freq_localbus;
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69
70 debug("LCRR=0x%x, CD=%d, MHz=%d\n", lcrr, clkdiv, lbc_mhz);
11c45ebd 71
0c7e4d45 72 out_be32(&gur->lbiuiplldcr1, 0x00078080);
11c45ebd 73 if (clkdiv == 16) {
0c7e4d45 74 out_be32(&gur->lbiuiplldcr0, 0x7c0f1bf0);
11c45ebd 75 } else if (clkdiv == 8) {
0c7e4d45 76 out_be32(&gur->lbiuiplldcr0, 0x6c0f1bf0);
11c45ebd 77 } else if (clkdiv == 4) {
0c7e4d45 78 out_be32(&gur->lbiuiplldcr0, 0x5c0f1bf0);
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79 }
80
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81 /*
82 * Local Bus Clock > 83.3 MHz. According to timing
83 * specifications set LCRR[EADC] to 2 delay cycles.
84 */
85 if (lbc_mhz > 83) {
86 lcrr &= ~LCRR_EADC;
87 lcrr |= LCRR_EADC_2;
88 }
89
90 /*
91 * According to MPC8548ERMAD Rev. 1.3, 13.3.1.16, 13-30
92 * disable PLL bypass for Local Bus Clock > 83 MHz.
93 */
94 if (lbc_mhz >= 66)
95 lcrr &= (~LCRR_DBYP); /* DLL Enabled */
96
97 else
98 lcrr |= LCRR_DBYP; /* DLL Bypass */
11c45ebd 99
e2b363ff 100 out_be32(&lbc->lcrr, lcrr);
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101 asm("sync;isync;msync");
102
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103 /*
104 * According to MPC8548ERMAD Rev.1.3 read back LCRR
105 * and terminate with isync
106 */
107 lcrr = in_be32(&lbc->lcrr);
108 asm ("isync;");
109
110 /* let DLL stabilize */
111 udelay(500);
112
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113 out_be32(&lbc->ltesr, 0xffffffff); /* Clear LBC error IRQs */
114 out_be32(&lbc->lteir, 0xffffffff); /* Enable LBC error IRQs */
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115}
116
117/*
118 * Initialize SDRAM memory on the Local Bus.
119 */
70961ba4 120void lbc_sdram_init(void)
11c45ebd 121{
11d5a629 122#if defined(CONFIG_SYS_LBC_SDRAM_SIZE)
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123
124 uint idx;
5f4c6f0d 125 const unsigned long size = CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024;
f51cdaf1 126 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
6d0f6bcf 127 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
5f4c6f0d 128 uint *sdram_addr2 = (uint *)(CONFIG_SYS_LBC_SDRAM_BASE + size/2);
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129
130 puts(" SDRAM: ");
131
5f4c6f0d 132 print_size(size, "\n");
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133
134 /*
135 * Setup SDRAM Base and Option Registers
136 */
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137 set_lbc_or(3, CONFIG_SYS_OR3_PRELIM);
138 set_lbc_br(3, CONFIG_SYS_BR3_PRELIM);
139 set_lbc_or(4, CONFIG_SYS_OR4_PRELIM);
140 set_lbc_br(4, CONFIG_SYS_BR4_PRELIM);
11d5a629 141
0c7e4d45 142 out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR);
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143 asm("msync");
144
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145 out_be32(&lbc->lsrt, CONFIG_SYS_LBC_LSRT);
146 out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR);
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147 asm("msync");
148
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149 /*
150 * Issue PRECHARGE ALL command.
151 */
5f4c6f0d 152 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_PCHALL);
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153 asm("sync;msync");
154 *sdram_addr = 0xff;
155 ppcDcbf((unsigned long) sdram_addr);
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156 *sdram_addr2 = 0xff;
157 ppcDcbf((unsigned long) sdram_addr2);
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158 udelay(100);
159
160 /*
161 * Issue 8 AUTO REFRESH commands.
162 */
163 for (idx = 0; idx < 8; idx++) {
5f4c6f0d 164 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_ARFRSH);
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165 asm("sync;msync");
166 *sdram_addr = 0xff;
167 ppcDcbf((unsigned long) sdram_addr);
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168 *sdram_addr2 = 0xff;
169 ppcDcbf((unsigned long) sdram_addr2);
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170 udelay(100);
171 }
172
173 /*
174 * Issue 8 MODE-set command.
175 */
5f4c6f0d 176 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_MRW);
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177 asm("sync;msync");
178 *sdram_addr = 0xff;
179 ppcDcbf((unsigned long) sdram_addr);
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180 *sdram_addr2 = 0xff;
181 ppcDcbf((unsigned long) sdram_addr2);
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182 udelay(100);
183
184 /*
5f4c6f0d 185 * Issue RFEN command.
11c45ebd 186 */
5f4c6f0d 187 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_RFEN);
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188 asm("sync;msync");
189 *sdram_addr = 0xff;
190 ppcDcbf((unsigned long) sdram_addr);
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191 *sdram_addr2 = 0xff;
192 ppcDcbf((unsigned long) sdram_addr2);
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193 udelay(200); /* Overkill. Must wait > 200 bus cycles */
194
195#endif /* enable SDRAM init */
196}
197
6d0f6bcf 198#if defined(CONFIG_SYS_DRAM_TEST)
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199int
200testdram(void)
201{
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202 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
203 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
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204 uint *p;
205
206 printf("Testing DRAM from 0x%08x to 0x%08x\n",
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207 CONFIG_SYS_MEMTEST_START,
208 CONFIG_SYS_MEMTEST_END);
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209
210 printf("DRAM test phase 1:\n");
211 for (p = pstart; p < pend; p++)
212 *p = 0xaaaaaaaa;
213
214 for (p = pstart; p < pend; p++) {
215 if (*p != 0xaaaaaaaa) {
216 printf ("DRAM test fails at: %08x\n", (uint) p);
217 return 1;
218 }
219 }
220
221 printf("DRAM test phase 2:\n");
222 for (p = pstart; p < pend; p++)
223 *p = 0x55555555;
224
225 for (p = pstart; p < pend; p++) {
226 if (*p != 0x55555555) {
227 printf ("DRAM test fails at: %08x\n", (uint) p);
228 return 1;
229 }
230 }
231
232 printf("DRAM test passed.\n");
233 return 0;
234}
235#endif
236
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237#ifdef CONFIG_PCI1
238static struct pci_controller pci1_hose;
239#endif /* CONFIG_PCI1 */
11c45ebd 240
fdc7eb90 241#ifdef CONFIG_PCI
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242void
243pci_init_board(void)
244{
6d0f6bcf 245 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
fdc7eb90 246 int first_free_busno = 0;
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247
248#ifdef CONFIG_PCI1
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249 struct fsl_pci_info pci_info;
250 u32 devdisr = in_be32(&gur->devdisr);
251 u32 pordevsr = in_be32(&gur->pordevsr);
252 u32 porpllsr = in_be32(&gur->porpllsr);
253
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254 if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
255 uint pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;
256 uint pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
257 uint pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;
258 uint pci_speed = CONFIG_SYS_CLK_FREQ; /* get_clock_freq() */
11c45ebd 259
8ca78f2c 260 printf("PCI: Host, %d bit, %s MHz, %s, %s\n",
11c45ebd 261 (pci_32) ? 32 : 64,
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262 (pci_speed == 33000000) ? "33" :
263 (pci_speed == 66000000) ? "66" : "unknown",
11c45ebd 264 pci_clk_sel ? "sync" : "async",
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265 pci_arb ? "arbiter" : "external-arbiter");
266
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267 SET_STD_PCI_INFO(pci_info, 1);
268 set_next_law(pci_info.mem_phys,
269 law_size_bits(pci_info.mem_size), pci_info.law);
270 set_next_law(pci_info.io_phys,
271 law_size_bits(pci_info.io_size), pci_info.law);
272
273 first_free_busno = fsl_pci_init_port(&pci_info,
01471d53 274 &pci1_hose, first_free_busno);
11c45ebd 275 } else {
8ca78f2c 276 printf("PCI: disabled\n");
11c45ebd 277 }
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278
279 puts("\n");
11c45ebd 280#else
fdc7eb90 281 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */
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282#endif
283
fdc7eb90 284 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable PCI2 */
11c45ebd 285
2d0a054d 286 fsl_pcie_init_board(first_free_busno);
11c45ebd 287}
fdc7eb90 288#endif
11c45ebd 289
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290int board_eth_init(bd_t *bis)
291{
292 tsec_standard_init(bis);
293 pci_eth_init(bis);
294 return 0; /* otherwise cpu_eth_init gets run */
295}
296
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297int last_stage_init(void)
298{
299 return 0;
300}
301
302#if defined(CONFIG_OF_BOARD_SETUP)
e895a4b0 303int ft_board_setup(void *blob, bd_t *bd)
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304{
305 ft_cpu_setup(blob, bd);
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306
307#ifdef CONFIG_FSL_PCI_INIT
308 FT_FSL_PCI_SETUP;
11c45ebd 309#endif
e895a4b0
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310
311 return 0;
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312}
313#endif