2 * See file CREDITS for list of people who contributed to this
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 #include <asm/global_data.h>
26 #include <asm/mpc8349_pci.h>
29 DECLARE_GLOBAL_DATA_PTR;
33 /* System RAM mapped to PCI space */
34 #define CONFIG_PCI_SYS_MEM_BUS CFG_SDRAM_BASE
35 #define CONFIG_PCI_SYS_MEM_PHYS CFG_SDRAM_BASE
37 #ifndef CONFIG_PCI_PNP
38 static struct pci_config_table pci_mpc8349emds_config_table[] = {
39 {PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
40 PCI_IDSEL_NUMBER, PCI_ANY_ID,
41 pci_cfgfunc_config_device, {PCI_ENET0_IOADDR,
43 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER
50 static struct pci_controller pci_hose[] = {
52 #ifndef CONFIG_PCI_PNP
53 config_table:pci_mpc8349emds_config_table,
57 #ifndef CONFIG_PCI_PNP
58 config_table:pci_mpc8349emds_config_table,
63 /**************************************************************************
65 * pib_init() -- initialize the PCA9555PW IO expander on the PIB board
73 * Assign PIB PMC slot to desired PCI bus
75 mpc8349_i2c = (i2c_t*)(CFG_IMMRBAR + CFG_I2C2_OFFSET);
76 i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE);
79 i2c_write(0x23, 0x6, 1, &val8, 1);
80 i2c_write(0x23, 0x7, 1, &val8, 1);
82 i2c_write(0x23, 0x2, 1, &val8, 1);
83 i2c_write(0x23, 0x3, 1, &val8, 1);
86 i2c_write(0x26, 0x6, 1, &val8, 1);
88 i2c_write(0x26, 0x7, 1, &val8, 1);
89 #if defined(PCI_64BIT)
90 val8 = 0xf4; /* PMC2:PCI1/64-bit */
91 #elif defined(PCI_ALL_PCI1)
92 val8 = 0xf3; /* PMC1:PCI1 PMC2:PCI1 PMC3:PCI1 */
93 #elif defined(PCI_ONE_PCI1)
94 val8 = 0xf9; /* PMC1:PCI1 PMC2:PCI2 PMC3:PCI2 */
96 val8 = 0xf5; /* PMC1:PCI1 PMC2:PCI1 PMC3:PCI2 */
98 i2c_write(0x26, 0x2, 1, &val8, 1);
100 i2c_write(0x26, 0x3, 1, &val8, 1);
102 i2c_write(0x27, 0x6, 1, &val8, 1);
103 i2c_write(0x27, 0x7, 1, &val8, 1);
105 i2c_write(0x27, 0x2, 1, &val8, 1);
107 i2c_write(0x27, 0x3, 1, &val8, 1);
110 #if defined(PCI_64BIT)
111 printf("PCI1: 64-bit on PMC2\n");
112 #elif defined(PCI_ALL_PCI1)
113 printf("PCI1: 32-bit on PMC1, PMC2, PMC3\n");
114 #elif defined(PCI_ONE_PCI1)
115 printf("PCI1: 32-bit on PMC1\n");
116 printf("PCI2: 32-bit on PMC2, PMC3\n");
118 printf("PCI1: 32-bit on PMC1, PMC2\n");
119 printf("PCI2: 32-bit on PMC3\n");
123 /**************************************************************************
126 * NOTICE: PCI2 is not currently supported
132 volatile immap_t * immr;
133 volatile clk8349_t * clk;
134 volatile law8349_t * pci_law;
135 volatile pot8349_t * pci_pot;
136 volatile pcictrl8349_t * pci_ctrl;
137 volatile pciconf8349_t * pci_conf;
141 struct pci_controller * hose;
143 immr = (immap_t *)CFG_IMMRBAR;
144 clk = (clk8349_t *)&immr->clk;
145 pci_law = immr->sysconf.pcilaw;
146 pci_pot = immr->ios.pot;
147 pci_ctrl = immr->pci_ctrl;
148 pci_conf = immr->pci_conf;
155 * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode
160 clk->occr = 0xff000000;
164 * Release PCI RST Output signal
170 #ifdef CONFIG_MPC83XX_PCI2
176 /* We need to wait at least a 1sec based on PCI specs */
180 for (i = 0; i < 1000; ++i)
185 * Configure PCI Local Access Windows
187 pci_law[0].bar = CFG_PCI1_MEM_PHYS & LAWBAR_BAR;
188 pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G;
190 pci_law[1].bar = CFG_PCI1_IO_PHYS & LAWBAR_BAR;
191 pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_4M;
194 * Configure PCI Outbound Translation Windows
197 /* PCI1 mem space - prefetch */
198 pci_pot[0].potar = (CFG_PCI1_MEM_BASE >> 12) & POTAR_TA_MASK;
199 pci_pot[0].pobar = (CFG_PCI1_MEM_PHYS >> 12) & POBAR_BA_MASK;
200 pci_pot[0].pocmr = POCMR_EN | POCMR_PREFETCH_EN | (POCMR_CM_256M & POCMR_CM_MASK);
203 pci_pot[1].potar = (CFG_PCI1_IO_BASE >> 12) & POTAR_TA_MASK;
204 pci_pot[1].pobar = (CFG_PCI1_IO_PHYS >> 12) & POBAR_BA_MASK;
205 pci_pot[1].pocmr = POCMR_EN | POCMR_IO | (POCMR_CM_1M & POCMR_CM_MASK);
207 /* PCI1 mmio - non-prefetch mem space */
208 pci_pot[2].potar = (CFG_PCI1_MMIO_BASE >> 12) & POTAR_TA_MASK;
209 pci_pot[2].pobar = (CFG_PCI1_MMIO_PHYS >> 12) & POBAR_BA_MASK;
210 pci_pot[2].pocmr = POCMR_EN | (POCMR_CM_256M & POCMR_CM_MASK);
213 * Configure PCI Inbound Translation Windows
216 /* we need RAM mapped to PCI space for the devices to
217 * access main memory */
218 pci_ctrl[0].pitar1 = 0x0;
219 pci_ctrl[0].pibar1 = 0x0;
220 pci_ctrl[0].piebar1 = 0x0;
221 pci_ctrl[0].piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1);
223 hose->first_busno = 0;
224 hose->last_busno = 0xff;
226 /* PCI memory prefetch space */
227 pci_set_region(hose->regions + 0,
231 PCI_REGION_MEM|PCI_REGION_PREFETCH);
233 /* PCI memory space */
234 pci_set_region(hose->regions + 1,
241 pci_set_region(hose->regions + 2,
247 /* System memory space */
248 pci_set_region(hose->regions + 3,
249 CONFIG_PCI_SYS_MEM_BUS,
250 CONFIG_PCI_SYS_MEM_PHYS,
252 PCI_REGION_MEM | PCI_REGION_MEMORY);
254 hose->region_count = 4;
256 pci_setup_indirect(hose,
257 (CFG_IMMRBAR+0x8300),
258 (CFG_IMMRBAR+0x8304));
260 pci_register_hose(hose);
263 * Write to Command register
266 dev = PCI_BDF(hose->first_busno, 0, 0);
267 pci_hose_read_config_word (hose, dev, PCI_COMMAND, ®16);
268 reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
269 pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16);
272 * Clear non-reserved bits in status register.
274 pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff);
275 pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80);
276 pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08);
278 #ifdef CONFIG_PCI_SCAN_SHOW
279 printf("PCI: Bus Dev VenId DevId Class Int\n");
284 hose->last_busno = pci_hose_scan(hose);
286 #ifdef CONFIG_MPC83XX_PCI2
290 * Configure PCI Outbound Translation Windows
293 /* PCI2 mem space - prefetch */
294 pci_pot[3].potar = (CFG_PCI2_MEM_BASE >> 12) & POTAR_TA_MASK;
295 pci_pot[3].pobar = (CFG_PCI2_MEM_PHYS >> 12) & POBAR_BA_MASK;
296 pci_pot[3].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_PREFETCH_EN | (POCMR_CM_256M & POCMR_CM_MASK);
299 pci_pot[4].potar = (CFG_PCI2_IO_BASE >> 12) & POTAR_TA_MASK;
300 pci_pot[4].pobar = (CFG_PCI2_IO_PHYS >> 12) & POBAR_BA_MASK;
301 pci_pot[4].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_IO | (POCMR_CM_1M & POCMR_CM_MASK);
303 /* PCI2 mmio - non-prefetch mem space */
304 pci_pot[5].potar = (CFG_PCI2_MMIO_BASE >> 12) & POTAR_TA_MASK;
305 pci_pot[5].pobar = (CFG_PCI2_MMIO_PHYS >> 12) & POBAR_BA_MASK;
306 pci_pot[5].pocmr = POCMR_EN | POCMR_PCI2 | (POCMR_CM_256M & POCMR_CM_MASK);
309 * Configure PCI Inbound Translation Windows
312 /* we need RAM mapped to PCI space for the devices to
313 * access main memory */
314 pci_ctrl[1].pitar1 = 0x0;
315 pci_ctrl[1].pibar1 = 0x0;
316 pci_ctrl[1].piebar1 = 0x0;
317 pci_ctrl[1].piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1);
319 hose->first_busno = pci_hose[0].last_busno + 1;
320 hose->last_busno = 0xff;
322 /* PCI memory prefetch space */
323 pci_set_region(hose->regions + 0,
327 PCI_REGION_MEM|PCI_REGION_PREFETCH);
329 /* PCI memory space */
330 pci_set_region(hose->regions + 1,
337 pci_set_region(hose->regions + 2,
343 /* System memory space */
344 pci_set_region(hose->regions + 3,
345 CONFIG_PCI_SYS_MEM_BUS,
346 CONFIG_PCI_SYS_MEM_PHYS,
348 PCI_REGION_MEM | PCI_REGION_MEMORY);
350 hose->region_count = 4;
352 pci_setup_indirect(hose,
353 (CFG_IMMRBAR+0x8380),
354 (CFG_IMMRBAR+0x8384));
356 pci_register_hose(hose);
359 * Write to Command register
362 dev = PCI_BDF(hose->first_busno, 0, 0);
363 pci_hose_read_config_word (hose, dev, PCI_COMMAND, ®16);
364 reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
365 pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16);
368 * Clear non-reserved bits in status register.
370 pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff);
371 pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80);
372 pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08);
377 hose->last_busno = pci_hose_scan(hose);
382 #endif /* CONFIG_PCI */