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11c45ebd 1/*
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2 * Copyright 2007,2009 Wind River Systems, Inc. <www.windriver.com>
3 *
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4 * Copyright 2007 Embedded Specialties, Inc.
5 *
6 * Copyright 2004, 2007 Freescale Semiconductor.
7 *
8 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
9 *
3765b3e7 10 * SPDX-License-Identifier: GPL-2.0+
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11 */
12
13#include <common.h>
14#include <pci.h>
15#include <asm/processor.h>
16#include <asm/immap_85xx.h>
c8514622 17#include <asm/fsl_pci.h>
5614e71b 18#include <fsl_ddr_sdram.h>
5d27e02c 19#include <asm/fsl_serdes.h>
a30a549a 20#include <spd_sdram.h>
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21#include <netdev.h>
22#include <tsec.h>
11c45ebd 23#include <miiphy.h>
b08c8c48 24#include <linux/libfdt.h>
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25#include <fdt_support.h>
26
11c45ebd 27void local_bus_init(void);
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28
29int board_early_init_f (void)
30{
31 return 0;
32}
33
34int checkboard (void)
35{
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36 volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
37 volatile u_char *rev= (void *)CONFIG_SYS_BD_REV;
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38
39 printf ("Board: Wind River SBC8548 Rev. 0x%01x\n",
0c7e4d45 40 in_8(rev) >> 4);
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41
42 /*
43 * Initialize local bus.
44 */
45 local_bus_init ();
46
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47 out_be32(&ecm->eedr, 0xffffffff); /* clear ecm errors */
48 out_be32(&ecm->eeer, 0xffffffff); /* enable ecm errors */
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49 return 0;
50}
51
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52/*
53 * Initialize Local Bus
54 */
55void
56local_bus_init(void)
57{
6d0f6bcf 58 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
f51cdaf1 59 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
11c45ebd 60
e2b363ff 61 uint clkdiv, lbc_mhz, lcrr = CONFIG_SYS_LBC_LCRR;
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62 sys_info_t sysinfo;
63
64 get_sys_info(&sysinfo);
e2b363ff 65
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66 lbc_mhz = sysinfo.freq_localbus / 1000000;
67 clkdiv = sysinfo.freq_systembus / sysinfo.freq_localbus;
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68
69 debug("LCRR=0x%x, CD=%d, MHz=%d\n", lcrr, clkdiv, lbc_mhz);
11c45ebd 70
0c7e4d45 71 out_be32(&gur->lbiuiplldcr1, 0x00078080);
11c45ebd 72 if (clkdiv == 16) {
0c7e4d45 73 out_be32(&gur->lbiuiplldcr0, 0x7c0f1bf0);
11c45ebd 74 } else if (clkdiv == 8) {
0c7e4d45 75 out_be32(&gur->lbiuiplldcr0, 0x6c0f1bf0);
11c45ebd 76 } else if (clkdiv == 4) {
0c7e4d45 77 out_be32(&gur->lbiuiplldcr0, 0x5c0f1bf0);
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78 }
79
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80 /*
81 * Local Bus Clock > 83.3 MHz. According to timing
82 * specifications set LCRR[EADC] to 2 delay cycles.
83 */
84 if (lbc_mhz > 83) {
85 lcrr &= ~LCRR_EADC;
86 lcrr |= LCRR_EADC_2;
87 }
88
89 /*
90 * According to MPC8548ERMAD Rev. 1.3, 13.3.1.16, 13-30
91 * disable PLL bypass for Local Bus Clock > 83 MHz.
92 */
93 if (lbc_mhz >= 66)
94 lcrr &= (~LCRR_DBYP); /* DLL Enabled */
95
96 else
97 lcrr |= LCRR_DBYP; /* DLL Bypass */
11c45ebd 98
e2b363ff 99 out_be32(&lbc->lcrr, lcrr);
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100 asm("sync;isync;msync");
101
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102 /*
103 * According to MPC8548ERMAD Rev.1.3 read back LCRR
104 * and terminate with isync
105 */
106 lcrr = in_be32(&lbc->lcrr);
107 asm ("isync;");
108
109 /* let DLL stabilize */
110 udelay(500);
111
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112 out_be32(&lbc->ltesr, 0xffffffff); /* Clear LBC error IRQs */
113 out_be32(&lbc->lteir, 0xffffffff); /* Enable LBC error IRQs */
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114}
115
116/*
117 * Initialize SDRAM memory on the Local Bus.
118 */
70961ba4 119void lbc_sdram_init(void)
11c45ebd 120{
11d5a629 121#if defined(CONFIG_SYS_LBC_SDRAM_SIZE)
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122
123 uint idx;
5f4c6f0d 124 const unsigned long size = CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024;
f51cdaf1 125 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
6d0f6bcf 126 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
5f4c6f0d 127 uint *sdram_addr2 = (uint *)(CONFIG_SYS_LBC_SDRAM_BASE + size/2);
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128
129 puts(" SDRAM: ");
130
5f4c6f0d 131 print_size(size, "\n");
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132
133 /*
134 * Setup SDRAM Base and Option Registers
135 */
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136 set_lbc_or(3, CONFIG_SYS_OR3_PRELIM);
137 set_lbc_br(3, CONFIG_SYS_BR3_PRELIM);
138 set_lbc_or(4, CONFIG_SYS_OR4_PRELIM);
139 set_lbc_br(4, CONFIG_SYS_BR4_PRELIM);
11d5a629 140
0c7e4d45 141 out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR);
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142 asm("msync");
143
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144 out_be32(&lbc->lsrt, CONFIG_SYS_LBC_LSRT);
145 out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR);
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146 asm("msync");
147
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148 /*
149 * Issue PRECHARGE ALL command.
150 */
5f4c6f0d 151 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_PCHALL);
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152 asm("sync;msync");
153 *sdram_addr = 0xff;
154 ppcDcbf((unsigned long) sdram_addr);
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155 *sdram_addr2 = 0xff;
156 ppcDcbf((unsigned long) sdram_addr2);
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157 udelay(100);
158
159 /*
160 * Issue 8 AUTO REFRESH commands.
161 */
162 for (idx = 0; idx < 8; idx++) {
5f4c6f0d 163 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_ARFRSH);
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164 asm("sync;msync");
165 *sdram_addr = 0xff;
166 ppcDcbf((unsigned long) sdram_addr);
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167 *sdram_addr2 = 0xff;
168 ppcDcbf((unsigned long) sdram_addr2);
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169 udelay(100);
170 }
171
172 /*
173 * Issue 8 MODE-set command.
174 */
5f4c6f0d 175 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_MRW);
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176 asm("sync;msync");
177 *sdram_addr = 0xff;
178 ppcDcbf((unsigned long) sdram_addr);
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179 *sdram_addr2 = 0xff;
180 ppcDcbf((unsigned long) sdram_addr2);
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181 udelay(100);
182
183 /*
5f4c6f0d 184 * Issue RFEN command.
11c45ebd 185 */
5f4c6f0d 186 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_RFEN);
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187 asm("sync;msync");
188 *sdram_addr = 0xff;
189 ppcDcbf((unsigned long) sdram_addr);
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190 *sdram_addr2 = 0xff;
191 ppcDcbf((unsigned long) sdram_addr2);
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192 udelay(200); /* Overkill. Must wait > 200 bus cycles */
193
194#endif /* enable SDRAM init */
195}
196
6d0f6bcf 197#if defined(CONFIG_SYS_DRAM_TEST)
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198int
199testdram(void)
200{
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201 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
202 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
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203 uint *p;
204
205 printf("Testing DRAM from 0x%08x to 0x%08x\n",
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206 CONFIG_SYS_MEMTEST_START,
207 CONFIG_SYS_MEMTEST_END);
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208
209 printf("DRAM test phase 1:\n");
210 for (p = pstart; p < pend; p++)
211 *p = 0xaaaaaaaa;
212
213 for (p = pstart; p < pend; p++) {
214 if (*p != 0xaaaaaaaa) {
215 printf ("DRAM test fails at: %08x\n", (uint) p);
216 return 1;
217 }
218 }
219
220 printf("DRAM test phase 2:\n");
221 for (p = pstart; p < pend; p++)
222 *p = 0x55555555;
223
224 for (p = pstart; p < pend; p++) {
225 if (*p != 0x55555555) {
226 printf ("DRAM test fails at: %08x\n", (uint) p);
227 return 1;
228 }
229 }
230
231 printf("DRAM test passed.\n");
232 return 0;
233}
234#endif
235
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236#ifdef CONFIG_PCI1
237static struct pci_controller pci1_hose;
238#endif /* CONFIG_PCI1 */
11c45ebd 239
fdc7eb90 240#ifdef CONFIG_PCI
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241void
242pci_init_board(void)
243{
6d0f6bcf 244 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
fdc7eb90 245 int first_free_busno = 0;
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246
247#ifdef CONFIG_PCI1
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248 struct fsl_pci_info pci_info;
249 u32 devdisr = in_be32(&gur->devdisr);
250 u32 pordevsr = in_be32(&gur->pordevsr);
251 u32 porpllsr = in_be32(&gur->porpllsr);
252
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253 if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
254 uint pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;
255 uint pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
256 uint pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;
257 uint pci_speed = CONFIG_SYS_CLK_FREQ; /* get_clock_freq() */
11c45ebd 258
8ca78f2c 259 printf("PCI: Host, %d bit, %s MHz, %s, %s\n",
11c45ebd 260 (pci_32) ? 32 : 64,
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261 (pci_speed == 33000000) ? "33" :
262 (pci_speed == 66000000) ? "66" : "unknown",
11c45ebd 263 pci_clk_sel ? "sync" : "async",
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264 pci_arb ? "arbiter" : "external-arbiter");
265
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266 SET_STD_PCI_INFO(pci_info, 1);
267 set_next_law(pci_info.mem_phys,
268 law_size_bits(pci_info.mem_size), pci_info.law);
269 set_next_law(pci_info.io_phys,
270 law_size_bits(pci_info.io_size), pci_info.law);
271
272 first_free_busno = fsl_pci_init_port(&pci_info,
01471d53 273 &pci1_hose, first_free_busno);
11c45ebd 274 } else {
8ca78f2c 275 printf("PCI: disabled\n");
11c45ebd 276 }
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277
278 puts("\n");
11c45ebd 279#else
fdc7eb90 280 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */
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281#endif
282
fdc7eb90 283 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable PCI2 */
11c45ebd 284
2d0a054d 285 fsl_pcie_init_board(first_free_busno);
11c45ebd 286}
fdc7eb90 287#endif
11c45ebd 288
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289int board_eth_init(bd_t *bis)
290{
291 tsec_standard_init(bis);
292 pci_eth_init(bis);
293 return 0; /* otherwise cpu_eth_init gets run */
294}
295
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296int last_stage_init(void)
297{
298 return 0;
299}
300
301#if defined(CONFIG_OF_BOARD_SETUP)
e895a4b0 302int ft_board_setup(void *blob, bd_t *bd)
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303{
304 ft_cpu_setup(blob, bd);
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305
306#ifdef CONFIG_FSL_PCI_INIT
307 FT_FSL_PCI_SETUP;
11c45ebd 308#endif
e895a4b0
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309
310 return 0;
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311}
312#endif