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mpc85xx boards: initdram() cleanup/bugfix
[J-u-boot.git] / board / freescale / mpc8548cds / mpc8548cds.c
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d9b94f28 1/*
6525d51f 2 * Copyright 2004, 2007, 2009-2010 Freescale Semiconductor, Inc.
d9b94f28
JL
3 *
4 * (C) Copyright 2002 Scott McNutt <[email protected]>
5 *
6 * See file CREDITS for list of people who contributed to this
7 * project.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * MA 02111-1307 USA
23 */
24
25#include <common.h>
26#include <pci.h>
27#include <asm/processor.h>
e31d2c1e 28#include <asm/mmu.h>
d9b94f28 29#include <asm/immap_85xx.h>
c8514622 30#include <asm/fsl_pci.h>
e31d2c1e 31#include <asm/fsl_ddr_sdram.h>
5d27e02c 32#include <asm/fsl_serdes.h>
a30a549a 33#include <spd_sdram.h>
09f3e09e 34#include <miiphy.h>
b90d2549
KG
35#include <libfdt.h>
36#include <fdt_support.h>
d9b94f28
JL
37
38#include "../common/cadmus.h"
39#include "../common/eeprom.h"
bf1dfffd 40#include "../common/via.h"
d9b94f28 41
f2cff6b1
ES
42DECLARE_GLOBAL_DATA_PTR;
43
d9b94f28 44void local_bus_init(void);
d9b94f28 45
d9b94f28
JL
46int checkboard (void)
47{
6d0f6bcf
JCPV
48 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
49 volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
d9b94f28
JL
50
51 /* PCI slot in USER bits CSR[6:7] by convention. */
52 uint pci_slot = get_pci_slot ();
53
d9b94f28
JL
54 uint cpu_board_rev = get_cpu_board_revision ();
55
56 printf ("Board: CDS Version 0x%02x, PCI Slot %d\n",
57 get_board_version (), pci_slot);
58
59 printf ("CPU Board Revision %d.%d (0x%04x)\n",
60 MPC85XX_CPU_BOARD_MAJOR (cpu_board_rev),
61 MPC85XX_CPU_BOARD_MINOR (cpu_board_rev), cpu_board_rev);
d9b94f28
JL
62 /*
63 * Initialize local bus.
64 */
65 local_bus_init ();
66
d9b94f28
JL
67 /*
68 * Hack TSEC 3 and 4 IO voltages.
69 */
70 gur->tsec34ioovcr = 0xe7e0; /* 1110 0111 1110 0xxx */
71
f2cff6b1
ES
72 ecm->eedr = 0xffffffff; /* clear ecm errors */
73 ecm->eeer = 0xffffffff; /* enable ecm errors */
d9b94f28
JL
74 return 0;
75}
76
d9b94f28
JL
77/*
78 * Initialize Local Bus
79 */
80void
81local_bus_init(void)
82{
6d0f6bcf 83 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
f51cdaf1 84 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
d9b94f28
JL
85
86 uint clkdiv;
87 uint lbc_hz;
88 sys_info_t sysinfo;
89
90 get_sys_info(&sysinfo);
a5d212a2 91 clkdiv = (lbc->lcrr & LCRR_CLKDIV) * 2;
d9b94f28
JL
92 lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
93
94 gur->lbiuiplldcr1 = 0x00078080;
95 if (clkdiv == 16) {
96 gur->lbiuiplldcr0 = 0x7c0f1bf0;
97 } else if (clkdiv == 8) {
98 gur->lbiuiplldcr0 = 0x6c0f1bf0;
99 } else if (clkdiv == 4) {
100 gur->lbiuiplldcr0 = 0x5c0f1bf0;
101 }
102
103 lbc->lcrr |= 0x00030000;
104
105 asm("sync;isync;msync");
f2cff6b1
ES
106
107 lbc->ltesr = 0xffffffff; /* Clear LBC error interrupts */
108 lbc->lteir = 0xffffffff; /* Enable LBC error interrupts */
d9b94f28
JL
109}
110
111/*
112 * Initialize SDRAM memory on the Local Bus.
113 */
114void
115sdram_init(void)
116{
6d0f6bcf 117#if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM)
d9b94f28
JL
118
119 uint idx;
f51cdaf1 120 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
6d0f6bcf 121 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
d9b94f28
JL
122 uint cpu_board_rev;
123 uint lsdmr_common;
124
125 puts(" SDRAM: ");
126
6d0f6bcf 127 print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
d9b94f28
JL
128
129 /*
130 * Setup SDRAM Base and Option Registers
131 */
f51cdaf1
BB
132 set_lbc_or(2, CONFIG_SYS_OR2_PRELIM);
133 set_lbc_br(2, CONFIG_SYS_BR2_PRELIM);
6d0f6bcf 134 lbc->lbcr = CONFIG_SYS_LBC_LBCR;
d9b94f28
JL
135 asm("msync");
136
6d0f6bcf
JCPV
137 lbc->lsrt = CONFIG_SYS_LBC_LSRT;
138 lbc->mrtpr = CONFIG_SYS_LBC_MRTPR;
d9b94f28
JL
139 asm("msync");
140
141 /*
142 * MPC8548 uses "new" 15-16 style addressing.
143 */
144 cpu_board_rev = get_cpu_board_revision();
6d0f6bcf 145 lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
b0fe93ed 146 lsdmr_common |= LSDMR_BSMA1516;
d9b94f28
JL
147
148 /*
149 * Issue PRECHARGE ALL command.
150 */
b0fe93ed 151 lbc->lsdmr = lsdmr_common | LSDMR_OP_PCHALL;
d9b94f28
JL
152 asm("sync;msync");
153 *sdram_addr = 0xff;
154 ppcDcbf((unsigned long) sdram_addr);
155 udelay(100);
156
157 /*
158 * Issue 8 AUTO REFRESH commands.
159 */
160 for (idx = 0; idx < 8; idx++) {
b0fe93ed 161 lbc->lsdmr = lsdmr_common | LSDMR_OP_ARFRSH;
d9b94f28
JL
162 asm("sync;msync");
163 *sdram_addr = 0xff;
164 ppcDcbf((unsigned long) sdram_addr);
165 udelay(100);
166 }
167
168 /*
169 * Issue 8 MODE-set command.
170 */
b0fe93ed 171 lbc->lsdmr = lsdmr_common | LSDMR_OP_MRW;
d9b94f28
JL
172 asm("sync;msync");
173 *sdram_addr = 0xff;
174 ppcDcbf((unsigned long) sdram_addr);
175 udelay(100);
176
177 /*
178 * Issue NORMAL OP command.
179 */
b0fe93ed 180 lbc->lsdmr = lsdmr_common | LSDMR_OP_NORMAL;
d9b94f28
JL
181 asm("sync;msync");
182 *sdram_addr = 0xff;
183 ppcDcbf((unsigned long) sdram_addr);
184 udelay(200); /* Overkill. Must wait > 200 bus cycles */
185
186#endif /* enable SDRAM init */
187}
188
f2cff6b1 189#if defined(CONFIG_PCI) || defined(CONFIG_PCI1)
bf1dfffd
MM
190/* For some reason the Tundra PCI bridge shows up on itself as a
191 * different device. Work around that by refusing to configure it.
d9b94f28 192 */
bf1dfffd 193void dummy_func(struct pci_controller* hose, pci_dev_t dev, struct pci_config_table *tab) { }
d9b94f28 194
d9b94f28 195static struct pci_config_table pci_mpc85xxcds_config_table[] = {
bf1dfffd 196 {0x10e3, 0x0513, PCI_ANY_ID, 1, 3, PCI_ANY_ID, dummy_func, {0,0,0}},
7f3f2bd2
RV
197 {0x1106, 0x0686, PCI_ANY_ID, 1, VIA_ID, 0, mpc85xx_config_via, {0,0,0}},
198 {0x1106, 0x0571, PCI_ANY_ID, 1, VIA_ID, 1,
ffa621a0 199 mpc85xx_config_via_usbide, {0,0,0}},
7f3f2bd2
RV
200 {0x1105, 0x3038, PCI_ANY_ID, 1, VIA_ID, 2,
201 mpc85xx_config_via_usb, {0,0,0}},
202 {0x1106, 0x3038, PCI_ANY_ID, 1, VIA_ID, 3,
203 mpc85xx_config_via_usb2, {0,0,0}},
204 {0x1106, 0x3058, PCI_ANY_ID, 1, VIA_ID, 5,
ffa621a0 205 mpc85xx_config_via_power, {0,0,0}},
7f3f2bd2
RV
206 {0x1106, 0x3068, PCI_ANY_ID, 1, VIA_ID, 6,
207 mpc85xx_config_via_ac97, {0,0,0}},
ffa621a0 208 {},
d9b94f28 209};
d9b94f28 210
f2cff6b1
ES
211static struct pci_controller pci1_hose = {
212 config_table: pci_mpc85xxcds_config_table};
d9b94f28
JL
213#endif /* CONFIG_PCI */
214
f2cff6b1
ES
215#ifdef CONFIG_PCI2
216static struct pci_controller pci2_hose;
217#endif /* CONFIG_PCI2 */
218
219#ifdef CONFIG_PCIE1
220static struct pci_controller pcie1_hose;
221#endif /* CONFIG_PCIE1 */
222
7b626880 223void pci_init_board(void)
d9b94f28 224{
6d0f6bcf 225 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
7b626880
KG
226 struct fsl_pci_info pci_info[4];
227 u32 devdisr, pordevsr, io_sel;
228 u32 porpllsr, pci_agent, pci_speed, pci_32, pci_arb, pci_clk_sel;
229 int first_free_busno = 0;
230 int num = 0;
f2cff6b1 231
7b626880 232 int pcie_ep, pcie_configured;
f2cff6b1 233
7b626880
KG
234 devdisr = in_be32(&gur->devdisr);
235 pordevsr = in_be32(&gur->pordevsr);
236 porpllsr = in_be32(&gur->porpllsr);
237 io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
f2cff6b1 238
7b626880 239 debug (" pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel);
f2cff6b1 240
7b626880
KG
241#ifdef CONFIG_PCI1
242 pci_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */
243 pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; /* PORDEVSR[15] */
244 pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
245 pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;
246
247 if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
248 SET_STD_PCI_INFO(pci_info[num], 1);
249 pci_agent = fsl_setup_hose(&pci1_hose, pci_info[num].regs);
8ca78f2c 250 printf("PCI: %d bit, %s MHz, %s, %s, %s (base address %lx)\n",
f2cff6b1
ES
251 (pci_32) ? 32 : 64,
252 (pci_speed == 33333000) ? "33" :
253 (pci_speed == 66666000) ? "66" : "unknown",
254 pci_clk_sel ? "sync" : "async",
255 pci_agent ? "agent" : "host",
7b626880
KG
256 pci_arb ? "arbiter" : "external-arbiter",
257 pci_info[num].regs);
258
259 first_free_busno = fsl_pci_init_port(&pci_info[num++],
260 &pci1_hose, first_free_busno);
261
f2cff6b1 262#ifdef CONFIG_PCIX_CHECK
7b626880 263 if (!(pordevsr & MPC85xx_PORDEVSR_PCI1)) {
f2cff6b1
ES
264 /* PCI-X init */
265 if (CONFIG_SYS_CLK_FREQ < 66000000)
266 printf("PCI-X will only work at 66 MHz\n");
267
268 reg16 = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ
269 | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E;
270 pci_hose_write_config_word(hose, bus, PCIX_COMMAND, reg16);
271 }
d9b94f28 272#endif
f2cff6b1 273 } else {
8ca78f2c 274 printf("PCI: disabled\n");
f2cff6b1 275 }
7b626880
KG
276
277 puts("\n");
f2cff6b1 278#else
7b626880 279 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */
f2cff6b1
ES
280#endif
281
282#ifdef CONFIG_PCI2
283{
7b626880 284 uint pci2_clk_sel = porpllsr & 0x4000; /* PORPLLSR[17] */
f2cff6b1
ES
285 uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */
286 if (pci_dual) {
8ca78f2c 287 printf("PCI2: 32 bit, 66 MHz, %s\n",
f2cff6b1
ES
288 pci2_clk_sel ? "sync" : "async");
289 } else {
8ca78f2c 290 printf("PCI2: disabled\n");
f2cff6b1
ES
291 }
292}
293#else
7b626880 294 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable */
f2cff6b1
ES
295#endif /* CONFIG_PCI2 */
296
297#ifdef CONFIG_PCIE1
5d27e02c 298 pcie_configured = is_serdes_configured(PCIE1);
f2cff6b1 299
7b626880
KG
300 if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
301 SET_STD_PCIE_INFO(pci_info[num], 1);
302 pcie_ep = fsl_setup_hose(&pcie1_hose, pci_info[num].regs);
8ca78f2c
PT
303 printf("PCIE1: connected to Slot as %s (base addr %lx)\n",
304 pcie_ep ? "Endpoint" : "Root Complex",
305 pci_info[num].regs);
f2cff6b1 306
7b626880
KG
307 first_free_busno = fsl_pci_init_port(&pci_info[num++],
308 &pcie1_hose, first_free_busno);
f2cff6b1 309 } else {
8ca78f2c 310 printf("PCIE1: disabled\n");
f2cff6b1 311 }
7b626880
KG
312
313 puts("\n");
f2cff6b1 314#else
7b626880 315 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE); /* disable */
f2cff6b1 316#endif
d9b94f28 317}
09f3e09e
AF
318
319int last_stage_init(void)
320{
f5012827 321 unsigned short temp;
09f3e09e
AF
322
323 /* Change the resistors for the PHY */
324 /* This is needed to get the RGMII working for the 1.3+
325 * CDS cards */
326 if (get_board_version() == 0x13) {
255a3577 327 miiphy_write(CONFIG_TSEC1_NAME,
09f3e09e
AF
328 TSEC1_PHY_ADDR, 29, 18);
329
255a3577 330 miiphy_read(CONFIG_TSEC1_NAME,
09f3e09e
AF
331 TSEC1_PHY_ADDR, 30, &temp);
332
333 temp = (temp & 0xf03f);
334 temp |= 2 << 9; /* 36 ohm */
335 temp |= 2 << 6; /* 39 ohm */
336
255a3577 337 miiphy_write(CONFIG_TSEC1_NAME,
09f3e09e
AF
338 TSEC1_PHY_ADDR, 30, temp);
339
255a3577 340 miiphy_write(CONFIG_TSEC1_NAME,
09f3e09e
AF
341 TSEC1_PHY_ADDR, 29, 3);
342
255a3577 343 miiphy_write(CONFIG_TSEC1_NAME,
09f3e09e
AF
344 TSEC1_PHY_ADDR, 30, 0x8000);
345 }
346
347 return 0;
348}
f2cff6b1
ES
349
350
b90d2549 351#if defined(CONFIG_OF_BOARD_SETUP)
2dba0dea
KG
352void ft_pci_setup(void *blob, bd_t *bd)
353{
6525d51f 354 FT_FSL_PCI_SETUP;
f2cff6b1
ES
355}
356#endif
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