1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2004, 2011 Freescale Semiconductor.
8 #include <asm/processor.h>
10 #include <asm/immap_85xx.h>
11 #include <fsl_ddr_sdram.h>
13 #include <spd_sdram.h>
14 #include <linux/libfdt.h>
15 #include <fdt_support.h>
17 #include "../common/cadmus.h"
18 #include "../common/eeprom.h"
19 #include "../common/via.h"
21 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
22 extern void ddr_enable_ecc(unsigned int dram_size);
25 void local_bus_init(void);
28 * I/O Port configuration table
30 * if conf is 1, then that port pin will be configured at boot time
31 * according to the five values podr/pdir/ppar/psor/pdat for that entry
34 const iop_conf_t iop_conf_tab[4][32] = {
36 /* Port A configuration */
37 { /* conf ppar psor pdir podr pdat */
38 /* PA31 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxENB */
39 /* PA30 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 TxClav */
40 /* PA29 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxSOC */
41 /* PA28 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 RxENB */
42 /* PA27 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxSOC */
43 /* PA26 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxClav */
44 /* PA25 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
45 /* PA24 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
46 /* PA23 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
47 /* PA22 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
48 /* PA21 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
49 /* PA20 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
50 /* PA19 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
51 /* PA18 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
52 /* PA17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[7] */
53 /* PA16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[6] */
54 /* PA15 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[5] */
55 /* PA14 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[4] */
56 /* PA13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[3] */
57 /* PA12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[2] */
58 /* PA11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[1] */
59 /* PA10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[0] */
60 /* PA9 */ { 0, 1, 1, 1, 0, 0 }, /* FCC1 L1TXD */
61 /* PA8 */ { 0, 1, 1, 0, 0, 0 }, /* FCC1 L1RXD */
62 /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
63 /* PA6 */ { 0, 1, 1, 1, 0, 0 }, /* TDM A1 L1RSYNC */
64 /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
65 /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
66 /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
67 /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
68 /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* FREERUN */
69 /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
72 /* Port B configuration */
73 { /* conf ppar psor pdir podr pdat */
74 /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
75 /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
76 /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
77 /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
78 /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
79 /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
80 /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
81 /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
82 /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
83 /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
84 /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
85 /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
86 /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
87 /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
88 /* PB17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */
89 /* PB16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */
90 /* PB15 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */
91 /* PB14 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */
92 /* PB13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:COL */
93 /* PB12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:CRS */
94 /* PB11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
95 /* PB10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
96 /* PB9 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
97 /* PB8 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
98 /* PB7 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
99 /* PB6 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
100 /* PB5 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
101 /* PB4 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
102 /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
103 /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
104 /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
105 /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
109 { /* conf ppar psor pdir podr pdat */
110 /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
111 /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
112 /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
113 /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
114 /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* UART Clock in */
115 /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
116 /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
117 /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
118 /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
119 /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
120 /* PC21 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
121 /* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
122 /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK CLK13 */
123 /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK14) */
124 /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
125 /* PC16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK16) */
126 /* PC15 */ { 1, 1, 0, 0, 0, 0 }, /* PC15 */
127 /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
128 /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
129 /* PC12 */ { 0, 1, 0, 1, 0, 0 }, /* PC12 */
130 /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* LXT971 transmit control */
131 /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */
132 /* PC9 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */
133 /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */
134 /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
135 /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
136 /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
137 /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
138 /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
139 /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */
140 /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */
141 /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */
145 { /* conf ppar psor pdir podr pdat */
146 /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
147 /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
148 /* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
149 /* PD28 */ { 0, 1, 0, 0, 0, 0 }, /* PD28 */
150 /* PD27 */ { 0, 1, 1, 1, 0, 0 }, /* PD27 */
151 /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */
152 /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
153 /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
154 /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */
155 /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */
156 /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */
157 /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */
158 /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
159 /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */
160 /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
161 /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */
162 /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
163 /* PD14 */ { 0, 0, 0, 1, 0, 0 }, /* LED */
164 /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
165 /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
166 /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
167 /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
168 /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
169 /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
170 /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */
171 /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
172 /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
173 /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */
174 /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
175 /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
176 /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
177 /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
181 int checkboard (void)
183 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
186 /* PCI slot in USER bits CSR[6:7] by convention. */
187 uint pci_slot = get_pci_slot ();
189 uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */
190 uint pci1_32 = gur->pordevsr & 0x10000; /* PORDEVSR[15] */
191 uint pci1_clk_sel = gur->porpllsr & 0x8000; /* PORPLLSR[16] */
192 uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
194 uint pci1_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */
196 uint cpu_board_rev = get_cpu_board_revision ();
198 printf ("Board: CDS Version 0x%02x, PCI Slot %d\n",
199 get_board_version (), pci_slot);
201 printf ("CPU Board Revision %d.%d (0x%04x)\n",
202 MPC85XX_CPU_BOARD_MAJOR (cpu_board_rev),
203 MPC85XX_CPU_BOARD_MINOR (cpu_board_rev), cpu_board_rev);
205 printf("PCI1: %d bit, %s MHz, %s\n",
207 strmhz(buf, pci1_speed),
208 pci1_clk_sel ? "sync" : "async");
211 printf("PCI2: 32 bit, 66 MHz, %s\n",
212 pci2_clk_sel ? "sync" : "async");
214 printf("PCI2: disabled\n");
218 * Initialize local bus.
226 * Initialize Local Bus
231 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
232 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
241 * Fix Local Bus clock glitch when DLL is enabled.
243 * If localbus freq is < 66MHz, DLL bypass mode must be used.
244 * If localbus freq is > 133MHz, DLL can be safely enabled.
245 * Between 66 and 133, the DLL is enabled with an override workaround.
248 get_sys_info(&sysinfo);
249 clkdiv = lbc->lcrr & LCRR_CLKDIV;
250 lbc_hz = sysinfo.freq_systembus / 1000000 / clkdiv;
253 lbc->lcrr |= LCRR_DBYP; /* DLL Bypass */
255 } else if (lbc_hz >= 133) {
256 lbc->lcrr &= (~LCRR_DBYP); /* DLL Enabled */
259 lbc->lcrr &= (~LCRR_DBYP); /* DLL Enabled */
263 * Sample LBC DLL ctrl reg, upshift it to set the
266 temp_lbcdll = gur->lbcdllcr;
267 gur->lbcdllcr = (((temp_lbcdll & 0xff) << 16) | 0x80000000);
268 asm("sync;isync;msync");
273 * Initialize SDRAM memory on the Local Bus.
275 void lbc_sdram_init(void)
277 #if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM)
280 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
281 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
286 print_size(CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024,
290 * Setup SDRAM Base and Option Registers
292 set_lbc_or(2, CONFIG_SYS_OR2_PRELIM);
293 set_lbc_br(2, CONFIG_SYS_BR2_PRELIM);
294 lbc->lbcr = CONFIG_SYS_LBC_LBCR;
297 lbc->lsrt = CONFIG_SYS_LBC_LSRT;
298 lbc->mrtpr = CONFIG_SYS_LBC_MRTPR;
302 * Determine which address lines to use baed on CPU board rev.
304 cpu_board_rev = get_cpu_board_revision();
305 lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
306 if (cpu_board_rev == MPC85XX_CPU_BOARD_REV_1_0) {
307 lsdmr_common |= LSDMR_BSMA1617;
308 } else if (cpu_board_rev == MPC85XX_CPU_BOARD_REV_1_1) {
309 lsdmr_common |= LSDMR_BSMA1516;
312 * Assume something unable to identify itself is
313 * really old, and likely has lines 16/17 mapped.
315 lsdmr_common |= LSDMR_BSMA1617;
319 * Issue PRECHARGE ALL command.
321 lbc->lsdmr = lsdmr_common | LSDMR_OP_PCHALL;
324 ppcDcbf((unsigned long) sdram_addr);
328 * Issue 8 AUTO REFRESH commands.
330 for (idx = 0; idx < 8; idx++) {
331 lbc->lsdmr = lsdmr_common | LSDMR_OP_ARFRSH;
334 ppcDcbf((unsigned long) sdram_addr);
339 * Issue 8 MODE-set command.
341 lbc->lsdmr = lsdmr_common | LSDMR_OP_MRW;
344 ppcDcbf((unsigned long) sdram_addr);
348 * Issue NORMAL OP command.
350 lbc->lsdmr = lsdmr_common | LSDMR_OP_NORMAL;
353 ppcDcbf((unsigned long) sdram_addr);
354 udelay(200); /* Overkill. Must wait > 200 bus cycles */
356 #endif /* enable SDRAM init */
360 /* For some reason the Tundra PCI bridge shows up on itself as a
361 * different device. Work around that by refusing to configure it
363 void dummy_func(struct pci_controller* hose, pci_dev_t dev, struct pci_config_table *tab) { }
365 static struct pci_config_table pci_mpc85xxcds_config_table[] = {
366 {0x10e3, 0x0513, PCI_ANY_ID, 1, 3, PCI_ANY_ID, dummy_func, {0,0,0}},
367 {0x1106, 0x0686, PCI_ANY_ID, 1, VIA_ID, 0, mpc85xx_config_via, {0,0,0}},
368 {0x1106, 0x0571, PCI_ANY_ID, 1, VIA_ID, 1,
369 mpc85xx_config_via_usbide, {0,0,0}},
370 {0x1105, 0x3038, PCI_ANY_ID, 1, VIA_ID, 2,
371 mpc85xx_config_via_usb, {0,0,0}},
372 {0x1106, 0x3038, PCI_ANY_ID, 1, VIA_ID, 3,
373 mpc85xx_config_via_usb2, {0,0,0}},
374 {0x1106, 0x3058, PCI_ANY_ID, 1, VIA_ID, 5,
375 mpc85xx_config_via_power, {0,0,0}},
376 {0x1106, 0x3068, PCI_ANY_ID, 1, VIA_ID, 6,
377 mpc85xx_config_via_ac97, {0,0,0}},
382 static struct pci_controller hose[] = {
384 config_table: pci_mpc85xxcds_config_table,
386 #ifdef CONFIG_MPC85XX_PCI2
397 pci_mpc85xx_init(hose);
401 #if defined(CONFIG_OF_BOARD_SETUP)
403 ft_pci_setup(void *blob, bd_t *bd)
408 node = fdt_path_offset(blob, "/aliases");
412 path = fdt_getprop(blob, node, "pci0", NULL);
414 tmp[1] = hose[0].last_busno - hose[0].first_busno;
415 do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
418 #ifdef CONFIG_MPC85XX_PCI2
419 path = fdt_getprop(blob, node, "pci1", NULL);
421 tmp[1] = hose[1].last_busno - hose[1].first_busno;
422 do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);