2 * Copyright 2004 Freescale Semiconductor.
4 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
6 * See file CREDITS for list of people who contributed to this
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.
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.
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,
27 #include <asm/processor.h>
29 #include <asm/immap_85xx.h>
30 #include <asm/fsl_ddr_sdram.h>
32 #include <spd_sdram.h>
34 #include <fdt_support.h>
36 #include "../common/cadmus.h"
37 #include "../common/eeprom.h"
38 #include "../common/via.h"
40 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
41 extern void ddr_enable_ecc(unsigned int dram_size);
44 void local_bus_init(void);
45 void sdram_init(void);
48 * I/O Port configuration table
50 * if conf is 1, then that port pin will be configured at boot time
51 * according to the five values podr/pdir/ppar/psor/pdat for that entry
54 const iop_conf_t iop_conf_tab[4][32] = {
56 /* Port A configuration */
57 { /* conf ppar psor pdir podr pdat */
58 /* PA31 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxENB */
59 /* PA30 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 TxClav */
60 /* PA29 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxSOC */
61 /* PA28 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 RxENB */
62 /* PA27 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxSOC */
63 /* PA26 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxClav */
64 /* PA25 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
65 /* PA24 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
66 /* PA23 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
67 /* PA22 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
68 /* PA21 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
69 /* PA20 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
70 /* PA19 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
71 /* PA18 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
72 /* PA17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[7] */
73 /* PA16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[6] */
74 /* PA15 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[5] */
75 /* PA14 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[4] */
76 /* PA13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[3] */
77 /* PA12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[2] */
78 /* PA11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[1] */
79 /* PA10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[0] */
80 /* PA9 */ { 0, 1, 1, 1, 0, 0 }, /* FCC1 L1TXD */
81 /* PA8 */ { 0, 1, 1, 0, 0, 0 }, /* FCC1 L1RXD */
82 /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
83 /* PA6 */ { 0, 1, 1, 1, 0, 0 }, /* TDM A1 L1RSYNC */
84 /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
85 /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
86 /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
87 /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
88 /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* FREERUN */
89 /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
92 /* Port B configuration */
93 { /* conf ppar psor pdir podr pdat */
94 /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
95 /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
96 /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
97 /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
98 /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
99 /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
100 /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
101 /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
102 /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
103 /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
104 /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
105 /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
106 /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
107 /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
108 /* PB17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */
109 /* PB16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */
110 /* PB15 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */
111 /* PB14 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */
112 /* PB13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:COL */
113 /* PB12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:CRS */
114 /* PB11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
115 /* PB10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
116 /* PB9 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
117 /* PB8 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
118 /* PB7 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
119 /* PB6 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
120 /* PB5 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
121 /* PB4 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
122 /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
123 /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
124 /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
125 /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
129 { /* conf ppar psor pdir podr pdat */
130 /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
131 /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
132 /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
133 /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
134 /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* UART Clock in */
135 /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
136 /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
137 /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
138 /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
139 /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
140 /* PC21 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
141 /* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
142 /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK CLK13 */
143 /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK14) */
144 /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
145 /* PC16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK16) */
146 /* PC15 */ { 1, 1, 0, 0, 0, 0 }, /* PC15 */
147 /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
148 /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
149 /* PC12 */ { 0, 1, 0, 1, 0, 0 }, /* PC12 */
150 /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* LXT971 transmit control */
151 /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */
152 /* PC9 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */
153 /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */
154 /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
155 /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
156 /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
157 /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
158 /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
159 /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */
160 /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */
161 /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */
165 { /* conf ppar psor pdir podr pdat */
166 /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
167 /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
168 /* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
169 /* PD28 */ { 0, 1, 0, 0, 0, 0 }, /* PD28 */
170 /* PD27 */ { 0, 1, 1, 1, 0, 0 }, /* PD27 */
171 /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */
172 /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
173 /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
174 /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */
175 /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */
176 /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */
177 /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */
178 /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
179 /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */
180 /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
181 /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */
182 /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
183 /* PD14 */ { 0, 0, 0, 1, 0, 0 }, /* LED */
184 /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
185 /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
186 /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
187 /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
188 /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
189 /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
190 /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */
191 /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
192 /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
193 /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */
194 /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
195 /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
196 /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
197 /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
201 int checkboard (void)
203 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
205 /* PCI slot in USER bits CSR[6:7] by convention. */
206 uint pci_slot = get_pci_slot ();
208 uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */
209 uint pci1_32 = gur->pordevsr & 0x10000; /* PORDEVSR[15] */
210 uint pci1_clk_sel = gur->porpllsr & 0x8000; /* PORPLLSR[16] */
211 uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
213 uint pci1_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */
215 uint cpu_board_rev = get_cpu_board_revision ();
217 printf ("Board: CDS Version 0x%02x, PCI Slot %d\n",
218 get_board_version (), pci_slot);
220 printf ("CPU Board Revision %d.%d (0x%04x)\n",
221 MPC85XX_CPU_BOARD_MAJOR (cpu_board_rev),
222 MPC85XX_CPU_BOARD_MINOR (cpu_board_rev), cpu_board_rev);
224 printf("PCI1: %d bit, %s MHz, %s\n",
226 (pci1_speed == 33000000) ? "33" :
227 (pci1_speed == 66000000) ? "66" : "unknown",
228 pci1_clk_sel ? "sync" : "async");
231 printf("PCI2: 32 bit, 66 MHz, %s\n",
232 pci2_clk_sel ? "sync" : "async");
234 printf("PCI2: disabled\n");
238 * Initialize local bus.
246 initdram(int board_type)
250 puts("Initializing\n");
252 #if defined(CONFIG_DDR_DLL)
255 * Work around to stabilize DDR DLL MSYNC_IN.
256 * Errata DDR9 seems to have been fixed.
257 * This is now the workaround for Errata DDR11:
258 * Override DLL = 1, Course Adj = 1, Tap Select = 0
261 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
263 gur->ddrdllcr = 0x81000000;
264 asm("sync;isync;msync");
268 dram_size = fsl_ddr_sdram();
269 dram_size = setup_ddr_tlbs(dram_size / 0x100000);
270 dram_size *= 0x100000;
272 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
274 * Initialize and enable DDR ECC.
276 ddr_enable_ecc(dram_size);
279 * SDRAM Initialization
288 * Initialize Local Bus
293 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
294 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
303 * Fix Local Bus clock glitch when DLL is enabled.
305 * If localbus freq is < 66MHz, DLL bypass mode must be used.
306 * If localbus freq is > 133MHz, DLL can be safely enabled.
307 * Between 66 and 133, the DLL is enabled with an override workaround.
310 get_sys_info(&sysinfo);
311 clkdiv = lbc->lcrr & LCRR_CLKDIV;
312 lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
315 lbc->lcrr |= 0x80000000; /* DLL Bypass */
317 } else if (lbc_hz >= 133) {
318 lbc->lcrr &= (~0x80000000); /* DLL Enabled */
321 lbc->lcrr &= (~0x8000000); /* DLL Enabled */
325 * Sample LBC DLL ctrl reg, upshift it to set the
328 temp_lbcdll = gur->lbcdllcr;
329 gur->lbcdllcr = (((temp_lbcdll & 0xff) << 16) | 0x80000000);
330 asm("sync;isync;msync");
335 * Initialize SDRAM memory on the Local Bus.
340 #if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM)
343 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
344 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
350 print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
353 * Setup SDRAM Base and Option Registers
355 set_lbc_or(2, CONFIG_SYS_OR2_PRELIM);
356 set_lbc_br(2, CONFIG_SYS_BR2_PRELIM);
357 lbc->lbcr = CONFIG_SYS_LBC_LBCR;
360 lbc->lsrt = CONFIG_SYS_LBC_LSRT;
361 lbc->mrtpr = CONFIG_SYS_LBC_MRTPR;
365 * Determine which address lines to use baed on CPU board rev.
367 cpu_board_rev = get_cpu_board_revision();
368 lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
369 if (cpu_board_rev == MPC85XX_CPU_BOARD_REV_1_0) {
370 lsdmr_common |= LSDMR_BSMA1617;
371 } else if (cpu_board_rev == MPC85XX_CPU_BOARD_REV_1_1) {
372 lsdmr_common |= LSDMR_BSMA1516;
375 * Assume something unable to identify itself is
376 * really old, and likely has lines 16/17 mapped.
378 lsdmr_common |= LSDMR_BSMA1617;
382 * Issue PRECHARGE ALL command.
384 lbc->lsdmr = lsdmr_common | LSDMR_OP_PCHALL;
387 ppcDcbf((unsigned long) sdram_addr);
391 * Issue 8 AUTO REFRESH commands.
393 for (idx = 0; idx < 8; idx++) {
394 lbc->lsdmr = lsdmr_common | LSDMR_OP_ARFRSH;
397 ppcDcbf((unsigned long) sdram_addr);
402 * Issue 8 MODE-set command.
404 lbc->lsdmr = lsdmr_common | LSDMR_OP_MRW;
407 ppcDcbf((unsigned long) sdram_addr);
411 * Issue NORMAL OP command.
413 lbc->lsdmr = lsdmr_common | LSDMR_OP_NORMAL;
416 ppcDcbf((unsigned long) sdram_addr);
417 udelay(200); /* Overkill. Must wait > 200 bus cycles */
419 #endif /* enable SDRAM init */
422 #if defined(CONFIG_PCI)
423 /* For some reason the Tundra PCI bridge shows up on itself as a
424 * different device. Work around that by refusing to configure it.
426 void dummy_func(struct pci_controller* hose, pci_dev_t dev, struct pci_config_table *tab) { }
428 static struct pci_config_table pci_mpc85xxcds_config_table[] = {
429 {0x10e3, 0x0513, PCI_ANY_ID, 1, 3, PCI_ANY_ID, dummy_func, {0,0,0}},
430 {0x1106, 0x0686, PCI_ANY_ID, 1, VIA_ID, 0, mpc85xx_config_via, {0,0,0}},
431 {0x1106, 0x0571, PCI_ANY_ID, 1, VIA_ID, 1,
432 mpc85xx_config_via_usbide, {0,0,0}},
433 {0x1105, 0x3038, PCI_ANY_ID, 1, VIA_ID, 2,
434 mpc85xx_config_via_usb, {0,0,0}},
435 {0x1106, 0x3038, PCI_ANY_ID, 1, VIA_ID, 3,
436 mpc85xx_config_via_usb2, {0,0,0}},
437 {0x1106, 0x3058, PCI_ANY_ID, 1, VIA_ID, 5,
438 mpc85xx_config_via_power, {0,0,0}},
439 {0x1106, 0x3068, PCI_ANY_ID, 1, VIA_ID, 6,
440 mpc85xx_config_via_ac97, {0,0,0}},
444 static struct pci_controller hose[] = {
445 { config_table: pci_mpc85xxcds_config_table,},
446 #ifdef CONFIG_MPC85XX_PCI2
451 #endif /* CONFIG_PCI */
457 pci_mpc85xx_init(hose);
461 #if defined(CONFIG_OF_BOARD_SETUP)
463 ft_pci_setup(void *blob, bd_t *bd)
468 node = fdt_path_offset(blob, "/aliases");
472 path = fdt_getprop(blob, node, "pci0", NULL);
474 tmp[1] = hose[0].last_busno - hose[0].first_busno;
475 do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
478 #ifdef CONFIG_MPC85XX_PCI2
479 path = fdt_getprop(blob, node, "pci1", NULL);
481 tmp[1] = hose[1].last_busno - hose[1].first_busno;
482 do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);