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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 *
1a459660 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>
33b9079b 18#include <asm/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>
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23#include <miiphy.h>
24#include <libfdt.h>
25#include <fdt_support.h>
26
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27DECLARE_GLOBAL_DATA_PTR;
28
11c45ebd 29void local_bus_init(void);
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30
31int board_early_init_f (void)
32{
33 return 0;
34}
35
36int checkboard (void)
37{
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38 volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
39 volatile u_char *rev= (void *)CONFIG_SYS_BD_REV;
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40
41 printf ("Board: Wind River SBC8548 Rev. 0x%01x\n",
0c7e4d45 42 in_8(rev) >> 4);
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43
44 /*
45 * Initialize local bus.
46 */
47 local_bus_init ();
48
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49 out_be32(&ecm->eedr, 0xffffffff); /* clear ecm errors */
50 out_be32(&ecm->eeer, 0xffffffff); /* enable ecm errors */
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51 return 0;
52}
53
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54/*
55 * Initialize Local Bus
56 */
57void
58local_bus_init(void)
59{
6d0f6bcf 60 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
f51cdaf1 61 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
11c45ebd 62
e2b363ff 63 uint clkdiv, lbc_mhz, lcrr = CONFIG_SYS_LBC_LCRR;
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64 sys_info_t sysinfo;
65
66 get_sys_info(&sysinfo);
e2b363ff 67
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68 lbc_mhz = sysinfo.freq_localbus / 1000000;
69 clkdiv = sysinfo.freq_systembus / sysinfo.freq_localbus;
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70
71 debug("LCRR=0x%x, CD=%d, MHz=%d\n", lcrr, clkdiv, lbc_mhz);
11c45ebd 72
0c7e4d45 73 out_be32(&gur->lbiuiplldcr1, 0x00078080);
11c45ebd 74 if (clkdiv == 16) {
0c7e4d45 75 out_be32(&gur->lbiuiplldcr0, 0x7c0f1bf0);
11c45ebd 76 } else if (clkdiv == 8) {
0c7e4d45 77 out_be32(&gur->lbiuiplldcr0, 0x6c0f1bf0);
11c45ebd 78 } else if (clkdiv == 4) {
0c7e4d45 79 out_be32(&gur->lbiuiplldcr0, 0x5c0f1bf0);
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80 }
81
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82 /*
83 * Local Bus Clock > 83.3 MHz. According to timing
84 * specifications set LCRR[EADC] to 2 delay cycles.
85 */
86 if (lbc_mhz > 83) {
87 lcrr &= ~LCRR_EADC;
88 lcrr |= LCRR_EADC_2;
89 }
90
91 /*
92 * According to MPC8548ERMAD Rev. 1.3, 13.3.1.16, 13-30
93 * disable PLL bypass for Local Bus Clock > 83 MHz.
94 */
95 if (lbc_mhz >= 66)
96 lcrr &= (~LCRR_DBYP); /* DLL Enabled */
97
98 else
99 lcrr |= LCRR_DBYP; /* DLL Bypass */
11c45ebd 100
e2b363ff 101 out_be32(&lbc->lcrr, lcrr);
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102 asm("sync;isync;msync");
103
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104 /*
105 * According to MPC8548ERMAD Rev.1.3 read back LCRR
106 * and terminate with isync
107 */
108 lcrr = in_be32(&lbc->lcrr);
109 asm ("isync;");
110
111 /* let DLL stabilize */
112 udelay(500);
113
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114 out_be32(&lbc->ltesr, 0xffffffff); /* Clear LBC error IRQs */
115 out_be32(&lbc->lteir, 0xffffffff); /* Enable LBC error IRQs */
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116}
117
118/*
119 * Initialize SDRAM memory on the Local Bus.
120 */
70961ba4 121void lbc_sdram_init(void)
11c45ebd 122{
11d5a629 123#if defined(CONFIG_SYS_LBC_SDRAM_SIZE)
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124
125 uint idx;
5f4c6f0d 126 const unsigned long size = CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024;
f51cdaf1 127 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
6d0f6bcf 128 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
5f4c6f0d 129 uint *sdram_addr2 = (uint *)(CONFIG_SYS_LBC_SDRAM_BASE + size/2);
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130
131 puts(" SDRAM: ");
132
5f4c6f0d 133 print_size(size, "\n");
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134
135 /*
136 * Setup SDRAM Base and Option Registers
137 */
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138 set_lbc_or(3, CONFIG_SYS_OR3_PRELIM);
139 set_lbc_br(3, CONFIG_SYS_BR3_PRELIM);
140 set_lbc_or(4, CONFIG_SYS_OR4_PRELIM);
141 set_lbc_br(4, CONFIG_SYS_BR4_PRELIM);
11d5a629 142
0c7e4d45 143 out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR);
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144 asm("msync");
145
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146 out_be32(&lbc->lsrt, CONFIG_SYS_LBC_LSRT);
147 out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR);
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148 asm("msync");
149
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150 /*
151 * Issue PRECHARGE ALL command.
152 */
5f4c6f0d 153 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_PCHALL);
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154 asm("sync;msync");
155 *sdram_addr = 0xff;
156 ppcDcbf((unsigned long) sdram_addr);
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157 *sdram_addr2 = 0xff;
158 ppcDcbf((unsigned long) sdram_addr2);
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159 udelay(100);
160
161 /*
162 * Issue 8 AUTO REFRESH commands.
163 */
164 for (idx = 0; idx < 8; idx++) {
5f4c6f0d 165 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_ARFRSH);
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166 asm("sync;msync");
167 *sdram_addr = 0xff;
168 ppcDcbf((unsigned long) sdram_addr);
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169 *sdram_addr2 = 0xff;
170 ppcDcbf((unsigned long) sdram_addr2);
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171 udelay(100);
172 }
173
174 /*
175 * Issue 8 MODE-set command.
176 */
5f4c6f0d 177 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_MRW);
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178 asm("sync;msync");
179 *sdram_addr = 0xff;
180 ppcDcbf((unsigned long) sdram_addr);
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181 *sdram_addr2 = 0xff;
182 ppcDcbf((unsigned long) sdram_addr2);
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183 udelay(100);
184
185 /*
5f4c6f0d 186 * Issue RFEN command.
11c45ebd 187 */
5f4c6f0d 188 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_RFEN);
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189 asm("sync;msync");
190 *sdram_addr = 0xff;
191 ppcDcbf((unsigned long) sdram_addr);
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192 *sdram_addr2 = 0xff;
193 ppcDcbf((unsigned long) sdram_addr2);
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194 udelay(200); /* Overkill. Must wait > 200 bus cycles */
195
196#endif /* enable SDRAM init */
197}
198
6d0f6bcf 199#if defined(CONFIG_SYS_DRAM_TEST)
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200int
201testdram(void)
202{
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203 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
204 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
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205 uint *p;
206
207 printf("Testing DRAM from 0x%08x to 0x%08x\n",
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208 CONFIG_SYS_MEMTEST_START,
209 CONFIG_SYS_MEMTEST_END);
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210
211 printf("DRAM test phase 1:\n");
212 for (p = pstart; p < pend; p++)
213 *p = 0xaaaaaaaa;
214
215 for (p = pstart; p < pend; p++) {
216 if (*p != 0xaaaaaaaa) {
217 printf ("DRAM test fails at: %08x\n", (uint) p);
218 return 1;
219 }
220 }
221
222 printf("DRAM test phase 2:\n");
223 for (p = pstart; p < pend; p++)
224 *p = 0x55555555;
225
226 for (p = pstart; p < pend; p++) {
227 if (*p != 0x55555555) {
228 printf ("DRAM test fails at: %08x\n", (uint) p);
229 return 1;
230 }
231 }
232
233 printf("DRAM test passed.\n");
234 return 0;
235}
236#endif
237
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238#ifdef CONFIG_PCI1
239static struct pci_controller pci1_hose;
240#endif /* CONFIG_PCI1 */
11c45ebd 241
fdc7eb90 242#ifdef CONFIG_PCI
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243void
244pci_init_board(void)
245{
6d0f6bcf 246 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
fdc7eb90 247 int first_free_busno = 0;
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248
249#ifdef CONFIG_PCI1
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250 struct fsl_pci_info pci_info;
251 u32 devdisr = in_be32(&gur->devdisr);
252 u32 pordevsr = in_be32(&gur->pordevsr);
253 u32 porpllsr = in_be32(&gur->porpllsr);
254
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255 if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
256 uint pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;
257 uint pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
258 uint pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;
259 uint pci_speed = CONFIG_SYS_CLK_FREQ; /* get_clock_freq() */
11c45ebd 260
8ca78f2c 261 printf("PCI: Host, %d bit, %s MHz, %s, %s\n",
11c45ebd 262 (pci_32) ? 32 : 64,
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263 (pci_speed == 33000000) ? "33" :
264 (pci_speed == 66000000) ? "66" : "unknown",
11c45ebd 265 pci_clk_sel ? "sync" : "async",
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266 pci_arb ? "arbiter" : "external-arbiter");
267
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268 SET_STD_PCI_INFO(pci_info, 1);
269 set_next_law(pci_info.mem_phys,
270 law_size_bits(pci_info.mem_size), pci_info.law);
271 set_next_law(pci_info.io_phys,
272 law_size_bits(pci_info.io_size), pci_info.law);
273
274 first_free_busno = fsl_pci_init_port(&pci_info,
01471d53 275 &pci1_hose, first_free_busno);
11c45ebd 276 } else {
8ca78f2c 277 printf("PCI: disabled\n");
11c45ebd 278 }
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279
280 puts("\n");
11c45ebd 281#else
fdc7eb90 282 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */
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283#endif
284
fdc7eb90 285 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable PCI2 */
11c45ebd 286
2d0a054d 287 fsl_pcie_init_board(first_free_busno);
11c45ebd 288}
fdc7eb90 289#endif
11c45ebd 290
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291int board_eth_init(bd_t *bis)
292{
293 tsec_standard_init(bis);
294 pci_eth_init(bis);
295 return 0; /* otherwise cpu_eth_init gets run */
296}
297
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298int last_stage_init(void)
299{
300 return 0;
301}
302
303#if defined(CONFIG_OF_BOARD_SETUP)
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304void ft_board_setup(void *blob, bd_t *bd)
305{
306 ft_cpu_setup(blob, bd);
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307
308#ifdef CONFIG_FSL_PCI_INIT
309 FT_FSL_PCI_SETUP;
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310#endif
311}
312#endif