1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2004, 2011 Freescale Semiconductor.
5 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
12 #include <asm/processor.h>
14 #include <asm/immap_85xx.h>
15 #include <fsl_ddr_sdram.h>
17 #include <spd_sdram.h>
18 #include <linux/libfdt.h>
19 #include <fdt_support.h>
21 #include "../common/cadmus.h"
22 #include "../common/eeprom.h"
23 #include "../common/via.h"
25 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
26 extern void ddr_enable_ecc(unsigned int dram_size);
29 void local_bus_init(void);
32 * I/O Port configuration table
34 * if conf is 1, then that port pin will be configured at boot time
35 * according to the five values podr/pdir/ppar/psor/pdat for that entry
38 const iop_conf_t iop_conf_tab[4][32] = {
40 /* Port A configuration */
41 { /* conf ppar psor pdir podr pdat */
42 /* PA31 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxENB */
43 /* PA30 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 TxClav */
44 /* PA29 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxSOC */
45 /* PA28 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 RxENB */
46 /* PA27 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxSOC */
47 /* PA26 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxClav */
48 /* PA25 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
49 /* PA24 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
50 /* PA23 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
51 /* PA22 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
52 /* PA21 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
53 /* PA20 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
54 /* PA19 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
55 /* PA18 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
56 /* PA17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[7] */
57 /* PA16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[6] */
58 /* PA15 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[5] */
59 /* PA14 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[4] */
60 /* PA13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[3] */
61 /* PA12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[2] */
62 /* PA11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[1] */
63 /* PA10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[0] */
64 /* PA9 */ { 0, 1, 1, 1, 0, 0 }, /* FCC1 L1TXD */
65 /* PA8 */ { 0, 1, 1, 0, 0, 0 }, /* FCC1 L1RXD */
66 /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
67 /* PA6 */ { 0, 1, 1, 1, 0, 0 }, /* TDM A1 L1RSYNC */
68 /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
69 /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
70 /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
71 /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
72 /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* FREERUN */
73 /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
76 /* Port B configuration */
77 { /* conf ppar psor pdir podr pdat */
78 /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
79 /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
80 /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
81 /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
82 /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
83 /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
84 /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
85 /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
86 /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
87 /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
88 /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
89 /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
90 /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
91 /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
92 /* PB17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */
93 /* PB16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */
94 /* PB15 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */
95 /* PB14 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */
96 /* PB13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:COL */
97 /* PB12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:CRS */
98 /* PB11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
99 /* PB10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
100 /* PB9 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
101 /* PB8 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
102 /* PB7 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
103 /* PB6 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
104 /* PB5 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
105 /* PB4 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
106 /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
107 /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
108 /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
109 /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
113 { /* conf ppar psor pdir podr pdat */
114 /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
115 /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
116 /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
117 /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
118 /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* UART Clock in */
119 /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
120 /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
121 /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
122 /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
123 /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
124 /* PC21 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
125 /* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
126 /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK CLK13 */
127 /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK14) */
128 /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
129 /* PC16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK16) */
130 /* PC15 */ { 1, 1, 0, 0, 0, 0 }, /* PC15 */
131 /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
132 /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
133 /* PC12 */ { 0, 1, 0, 1, 0, 0 }, /* PC12 */
134 /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* LXT971 transmit control */
135 /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */
136 /* PC9 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */
137 /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */
138 /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
139 /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
140 /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
141 /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
142 /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
143 /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */
144 /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */
145 /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */
149 { /* conf ppar psor pdir podr pdat */
150 /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
151 /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
152 /* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
153 /* PD28 */ { 0, 1, 0, 0, 0, 0 }, /* PD28 */
154 /* PD27 */ { 0, 1, 1, 1, 0, 0 }, /* PD27 */
155 /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */
156 /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
157 /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
158 /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */
159 /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */
160 /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */
161 /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */
162 /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
163 /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */
164 /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
165 /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */
166 /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
167 /* PD14 */ { 0, 0, 0, 1, 0, 0 }, /* LED */
168 /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
169 /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
170 /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
171 /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
172 /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
173 /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
174 /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */
175 /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
176 /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
177 /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */
178 /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
179 /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
180 /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
181 /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
185 int checkboard (void)
187 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
190 /* PCI slot in USER bits CSR[6:7] by convention. */
191 uint pci_slot = get_pci_slot ();
193 uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */
194 uint pci1_32 = gur->pordevsr & 0x10000; /* PORDEVSR[15] */
195 uint pci1_clk_sel = gur->porpllsr & 0x8000; /* PORPLLSR[16] */
196 uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
198 uint pci1_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */
200 uint cpu_board_rev = get_cpu_board_revision ();
202 printf ("Board: CDS Version 0x%02x, PCI Slot %d\n",
203 get_board_version (), pci_slot);
205 printf ("CPU Board Revision %d.%d (0x%04x)\n",
206 MPC85XX_CPU_BOARD_MAJOR (cpu_board_rev),
207 MPC85XX_CPU_BOARD_MINOR (cpu_board_rev), cpu_board_rev);
209 printf("PCI1: %d bit, %s MHz, %s\n",
211 strmhz(buf, pci1_speed),
212 pci1_clk_sel ? "sync" : "async");
215 printf("PCI2: 32 bit, 66 MHz, %s\n",
216 pci2_clk_sel ? "sync" : "async");
218 printf("PCI2: disabled\n");
222 * Initialize local bus.
230 * Initialize Local Bus
235 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
236 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
245 * Fix Local Bus clock glitch when DLL is enabled.
247 * If localbus freq is < 66MHz, DLL bypass mode must be used.
248 * If localbus freq is > 133MHz, DLL can be safely enabled.
249 * Between 66 and 133, the DLL is enabled with an override workaround.
252 get_sys_info(&sysinfo);
253 clkdiv = lbc->lcrr & LCRR_CLKDIV;
254 lbc_hz = sysinfo.freq_systembus / 1000000 / clkdiv;
257 lbc->lcrr |= LCRR_DBYP; /* DLL Bypass */
259 } else if (lbc_hz >= 133) {
260 lbc->lcrr &= (~LCRR_DBYP); /* DLL Enabled */
263 lbc->lcrr &= (~LCRR_DBYP); /* DLL Enabled */
267 * Sample LBC DLL ctrl reg, upshift it to set the
270 temp_lbcdll = gur->lbcdllcr;
271 gur->lbcdllcr = (((temp_lbcdll & 0xff) << 16) | 0x80000000);
272 asm("sync;isync;msync");
277 * Initialize SDRAM memory on the Local Bus.
279 void lbc_sdram_init(void)
281 #if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM)
284 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
285 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
290 print_size(CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024,
294 * Setup SDRAM Base and Option Registers
296 set_lbc_or(2, CONFIG_SYS_OR2_PRELIM);
297 set_lbc_br(2, CONFIG_SYS_BR2_PRELIM);
298 lbc->lbcr = CONFIG_SYS_LBC_LBCR;
301 lbc->lsrt = CONFIG_SYS_LBC_LSRT;
302 lbc->mrtpr = CONFIG_SYS_LBC_MRTPR;
306 * Determine which address lines to use baed on CPU board rev.
308 cpu_board_rev = get_cpu_board_revision();
309 lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
310 if (cpu_board_rev == MPC85XX_CPU_BOARD_REV_1_0) {
311 lsdmr_common |= LSDMR_BSMA1617;
312 } else if (cpu_board_rev == MPC85XX_CPU_BOARD_REV_1_1) {
313 lsdmr_common |= LSDMR_BSMA1516;
316 * Assume something unable to identify itself is
317 * really old, and likely has lines 16/17 mapped.
319 lsdmr_common |= LSDMR_BSMA1617;
323 * Issue PRECHARGE ALL command.
325 lbc->lsdmr = lsdmr_common | LSDMR_OP_PCHALL;
328 ppcDcbf((unsigned long) sdram_addr);
332 * Issue 8 AUTO REFRESH commands.
334 for (idx = 0; idx < 8; idx++) {
335 lbc->lsdmr = lsdmr_common | LSDMR_OP_ARFRSH;
338 ppcDcbf((unsigned long) sdram_addr);
343 * Issue 8 MODE-set command.
345 lbc->lsdmr = lsdmr_common | LSDMR_OP_MRW;
348 ppcDcbf((unsigned long) sdram_addr);
352 * Issue NORMAL OP command.
354 lbc->lsdmr = lsdmr_common | LSDMR_OP_NORMAL;
357 ppcDcbf((unsigned long) sdram_addr);
358 udelay(200); /* Overkill. Must wait > 200 bus cycles */
360 #endif /* enable SDRAM init */
363 #if defined(CONFIG_PCI)
364 /* For some reason the Tundra PCI bridge shows up on itself as a
365 * different device. Work around that by refusing to configure it.
367 void dummy_func(struct pci_controller* hose, pci_dev_t dev, struct pci_config_table *tab) { }
369 static struct pci_config_table pci_mpc85xxcds_config_table[] = {
370 {0x10e3, 0x0513, PCI_ANY_ID, 1, 3, PCI_ANY_ID, dummy_func, {0,0,0}},
371 {0x1106, 0x0686, PCI_ANY_ID, 1, VIA_ID, 0, mpc85xx_config_via, {0,0,0}},
372 {0x1106, 0x0571, PCI_ANY_ID, 1, VIA_ID, 1,
373 mpc85xx_config_via_usbide, {0,0,0}},
374 {0x1105, 0x3038, PCI_ANY_ID, 1, VIA_ID, 2,
375 mpc85xx_config_via_usb, {0,0,0}},
376 {0x1106, 0x3038, PCI_ANY_ID, 1, VIA_ID, 3,
377 mpc85xx_config_via_usb2, {0,0,0}},
378 {0x1106, 0x3058, PCI_ANY_ID, 1, VIA_ID, 5,
379 mpc85xx_config_via_power, {0,0,0}},
380 {0x1106, 0x3068, PCI_ANY_ID, 1, VIA_ID, 6,
381 mpc85xx_config_via_ac97, {0,0,0}},
385 static struct pci_controller hose[] = {
386 { config_table: pci_mpc85xxcds_config_table,},
387 #ifdef CONFIG_MPC85XX_PCI2
392 #endif /* CONFIG_PCI */
398 pci_mpc85xx_init(hose);
402 #if defined(CONFIG_OF_BOARD_SETUP)
404 ft_pci_setup(void *blob, bd_t *bd)
409 node = fdt_path_offset(blob, "/aliases");
413 path = fdt_getprop(blob, node, "pci0", NULL);
415 tmp[1] = hose[0].last_busno - hose[0].first_busno;
416 do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
419 #ifdef CONFIG_MPC85XX_PCI2
420 path = fdt_getprop(blob, node, "pci1", NULL);
422 tmp[1] = hose[1].last_busno - hose[1].first_busno;
423 do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);