2 * arch/ppc/platforms/radstone_ppc7d.c
4 * Board setup routines for the Radstone PPC7D boards.
6 * Author: James Chapman <jchapman@katalix.com>
8 * Based on code done by Rabeeh Khoury - rabeeh@galileo.co.il
9 * Based on code done by - Mark A. Greer <mgreer@mvista.com>
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
17 /* Radstone PPC7D boards are rugged VME boards with PPC 7447A CPUs,
18 * Discovery-II, dual gigabit ethernet, dual PMC, USB, keyboard/mouse,
19 * 4 serial ports, 2 high speed serial ports (MPSCs) and optional
23 #include <linux/config.h>
24 #include <linux/stddef.h>
25 #include <linux/kernel.h>
26 #include <linux/init.h>
27 #include <linux/errno.h>
28 #include <linux/reboot.h>
29 #include <linux/pci.h>
30 #include <linux/kdev_t.h>
31 #include <linux/major.h>
32 #include <linux/initrd.h>
33 #include <linux/console.h>
34 #include <linux/delay.h>
35 #include <linux/irq.h>
36 #include <linux/ide.h>
37 #include <linux/seq_file.h>
38 #include <linux/root_dev.h>
39 #include <linux/serial.h>
40 #include <linux/tty.h> /* for linux/serial_core.h */
41 #include <linux/serial_core.h>
42 #include <linux/mv643xx.h>
43 #include <linux/netdevice.h>
45 #include <asm/system.h>
46 #include <asm/pgtable.h>
51 #include <asm/machdep.h>
55 #include <asm/open_pic.h>
56 #include <asm/i8259.h>
58 #include <asm/bootinfo.h>
59 #include <asm/mpc10x.h>
60 #include <asm/pci-bridge.h>
61 #include <asm/mv64x60.h>
62 #include <asm/i8259.h>
64 #include "radstone_ppc7d.h"
68 #define PPC7D_RST_PIN 17 /* GPP17 */
70 extern u32 mv64360_irq_base;
72 static struct mv64x60_handle bh;
73 static int ppc7d_has_alma;
75 extern void gen550_progress(char *, unsigned short);
76 extern void gen550_init(int, struct uart_port *);
79 unsigned char __res[sizeof(bd_t)];
81 /*****************************************************************************
83 *****************************************************************************/
85 #if defined(CONFIG_KGDB) || defined(CONFIG_SERIAL_TEXT_DEBUG)
86 static void __init ppc7d_early_serial_map(void)
88 #if defined(CONFIG_SERIAL_MPSC_CONSOLE)
89 mv64x60_progress_init(CONFIG_MV64X60_NEW_BASE);
90 #elif defined(CONFIG_SERIAL_8250)
91 struct uart_port serial_req;
93 /* Setup serial port access */
94 memset(&serial_req, 0, sizeof(serial_req));
95 serial_req.uartclk = UART_CLK;
97 serial_req.flags = STD_COM_FLAGS;
98 serial_req.iotype = SERIAL_IO_MEM;
99 serial_req.membase = (u_char *) PPC7D_SERIAL_0;
101 gen550_init(0, &serial_req);
102 if (early_serial_setup(&serial_req) != 0)
103 printk(KERN_ERR "Early serial init of port 0 failed\n");
105 /* Assume early_serial_setup() doesn't modify serial_req */
108 serial_req.membase = (u_char *) PPC7D_SERIAL_1;
110 gen550_init(1, &serial_req);
111 if (early_serial_setup(&serial_req) != 0)
112 printk(KERN_ERR "Early serial init of port 1 failed\n");
114 #error CONFIG_KGDB || CONFIG_SERIAL_TEXT_DEBUG has no supported CONFIG_SERIAL_XXX
117 #endif /* CONFIG_KGDB || CONFIG_SERIAL_TEXT_DEBUG */
119 /*****************************************************************************
120 * Low-level board support code
121 *****************************************************************************/
123 static unsigned long __init ppc7d_find_end_of_memory(void)
125 bd_t *bp = (bd_t *) __res;
128 return bp->bi_memsize;
130 return (256 * 1024 * 1024);
133 static void __init ppc7d_map_io(void)
135 /* remove temporary mapping */
136 mtspr(SPRN_DBAT3U, 0x00000000);
137 mtspr(SPRN_DBAT3L, 0x00000000);
139 io_block_mapping(0xe8000000, 0xe8000000, 0x08000000, _PAGE_IO);
140 io_block_mapping(0xfe000000, 0xfe000000, 0x02000000, _PAGE_IO);
143 static void ppc7d_restart(char *cmd)
147 /* Disable GPP17 interrupt */
148 data = mv64x60_read(&bh, MV64x60_GPP_INTR_MASK);
149 data &= ~(1 << PPC7D_RST_PIN);
150 mv64x60_write(&bh, MV64x60_GPP_INTR_MASK, data);
152 /* Configure MPP17 as GPP */
153 data = mv64x60_read(&bh, MV64x60_MPP_CNTL_2);
154 data &= ~(0x0000000f << 4);
155 mv64x60_write(&bh, MV64x60_MPP_CNTL_2, data);
157 /* Enable pin GPP17 for output */
158 data = mv64x60_read(&bh, MV64x60_GPP_IO_CNTL);
159 data |= (1 << PPC7D_RST_PIN);
160 mv64x60_write(&bh, MV64x60_GPP_IO_CNTL, data);
162 /* Toggle GPP9 pin to reset the board */
163 mv64x60_write(&bh, MV64x60_GPP_VALUE_CLR, 1 << PPC7D_RST_PIN);
164 mv64x60_write(&bh, MV64x60_GPP_VALUE_SET, 1 << PPC7D_RST_PIN);
166 for (;;) ; /* Spin until reset happens */
170 static void ppc7d_power_off(void)
176 /* Ensure that internal MV643XX watchdog is disabled.
177 * The Disco watchdog uses MPP17 on this hardware.
179 data = mv64x60_read(&bh, MV64x60_MPP_CNTL_2);
180 data &= ~(0x0000000f << 4);
181 mv64x60_write(&bh, MV64x60_MPP_CNTL_2, data);
183 data = mv64x60_read(&bh, MV64x60_WDT_WDC);
184 if (data & 0x80000000) {
185 mv64x60_write(&bh, MV64x60_WDT_WDC, 1 << 24);
186 mv64x60_write(&bh, MV64x60_WDT_WDC, 2 << 24);
189 for (;;) ; /* No way to shut power off with software */
193 static void ppc7d_halt(void)
199 static unsigned long ppc7d_led_no_pulse;
201 static int __init ppc7d_led_pulse_disable(char *str)
203 ppc7d_led_no_pulse = 1;
207 /* This kernel option disables the heartbeat pulsing of a board LED */
208 __setup("ledoff", ppc7d_led_pulse_disable);
210 static void ppc7d_heartbeat(void)
214 static int max706_wdog = 0;
216 /* Unfortunately we can't access the LED control registers
217 * during early init because they're on the CPLD which is the
218 * other side of a PCI bridge which goes unreachable during
219 * PCI scan. So write the LEDs only if the MV64360 watchdog is
220 * enabled (i.e. userspace apps are running so kernel is up)..
222 data32 = mv64x60_read(&bh, MV64x60_WDT_WDC);
223 if (data32 & 0x80000000) {
224 /* Enable MAX706 watchdog if not done already */
226 outb(3, PPC7D_CPLD_RESET);
230 /* Hit the MAX706 watchdog */
231 outb(0, PPC7D_CPLD_WATCHDOG_TRIG);
233 /* Pulse LED DS219 if not disabled */
234 if (!ppc7d_led_no_pulse) {
235 static int led_on = 0;
237 data8 = inb(PPC7D_CPLD_LEDS);
239 data8 &= ~PPC7D_CPLD_LEDS_DS219_MASK;
241 data8 |= PPC7D_CPLD_LEDS_DS219_MASK;
243 outb(data8, PPC7D_CPLD_LEDS);
247 ppc_md.heartbeat_count = ppc_md.heartbeat_reset;
250 static int ppc7d_show_cpuinfo(struct seq_file *m)
254 static int flash_sizes[4] = { 64, 32, 0, 16 };
255 static int flash_banks[4] = { 4, 3, 2, 1 };
256 static int sdram_bank_sizes[4] = { 128, 256, 512, 1 };
257 int sdram_num_banks = 2;
258 static char *pci_modes[] = { "PCI33", "PCI66",
259 "Unknown", "Unknown",
264 seq_printf(m, "vendor\t\t: Radstone Technology\n");
265 seq_printf(m, "machine\t\t: PPC7D\n");
267 val = inb(PPC7D_CPLD_BOARD_REVISION);
268 val1 = (val & PPC7D_CPLD_BOARD_REVISION_NUMBER_MASK) >> 5;
269 val2 = (val & PPC7D_CPLD_BOARD_REVISION_LETTER_MASK);
270 seq_printf(m, "revision\t: %hd%c%c\n",
272 (val2 <= 0x18) ? 'A' + val2 : 'Y',
273 (val2 > 0x18) ? 'A' + (val2 - 0x19) : ' ');
275 val = inb(PPC7D_CPLD_MOTHERBOARD_TYPE);
276 val1 = val & PPC7D_CPLD_MB_TYPE_PLL_MASK;
277 val2 = val & (PPC7D_CPLD_MB_TYPE_ECC_FITTED_MASK |
278 PPC7D_CPLD_MB_TYPE_ECC_ENABLE_MASK);
279 seq_printf(m, "bus speed\t: %dMHz\n",
280 (val1 == PPC7D_CPLD_MB_TYPE_PLL_133) ? 133 :
281 (val1 == PPC7D_CPLD_MB_TYPE_PLL_100) ? 100 :
282 (val1 == PPC7D_CPLD_MB_TYPE_PLL_64) ? 64 : 0);
284 val = inb(PPC7D_CPLD_MEM_CONFIG);
285 if (val & PPC7D_CPLD_SDRAM_BANK_NUM_MASK) sdram_num_banks--;
287 val = inb(PPC7D_CPLD_MEM_CONFIG_EXTEND);
288 val1 = (val & PPC7D_CPLD_SDRAM_BANK_SIZE_MASK) >> 6;
289 seq_printf(m, "SDRAM\t\t: %d banks of %d%c, total %d%c",
291 sdram_bank_sizes[val1],
292 (sdram_bank_sizes[val1] < 128) ? 'G' : 'M',
293 sdram_num_banks * sdram_bank_sizes[val1],
294 (sdram_bank_sizes[val1] < 128) ? 'G' : 'M');
295 if (val2 & PPC7D_CPLD_MB_TYPE_ECC_FITTED_MASK) {
296 seq_printf(m, " [ECC %sabled]",
297 (val2 & PPC7D_CPLD_MB_TYPE_ECC_ENABLE_MASK) ? "en" :
302 val1 = (val & PPC7D_CPLD_FLASH_DEV_SIZE_MASK);
303 val2 = (val & PPC7D_CPLD_FLASH_BANK_NUM_MASK) >> 2;
304 seq_printf(m, "FLASH\t\t: %d banks of %dM, total %dM\n",
305 flash_banks[val2], flash_sizes[val1],
306 flash_banks[val2] * flash_sizes[val1]);
308 val = inb(PPC7D_CPLD_FLASH_WRITE_CNTL);
309 val1 = inb(PPC7D_CPLD_SW_FLASH_WRITE_PROTECT);
310 seq_printf(m, " write links\t: %s%s%s%s\n",
311 (val & PPD7D_CPLD_FLASH_CNTL_WR_LINK_MASK) ? "WRITE " : "",
312 (val & PPD7D_CPLD_FLASH_CNTL_BOOT_LINK_MASK) ? "BOOT " : "",
313 (val & PPD7D_CPLD_FLASH_CNTL_USER_LINK_MASK) ? "USER " : "",
314 (val & (PPD7D_CPLD_FLASH_CNTL_WR_LINK_MASK |
315 PPD7D_CPLD_FLASH_CNTL_BOOT_LINK_MASK |
316 PPD7D_CPLD_FLASH_CNTL_USER_LINK_MASK)) ==
318 seq_printf(m, " write sector h/w enables: %s%s%s%s%s\n",
319 (val & PPD7D_CPLD_FLASH_CNTL_RECO_WR_MASK) ? "RECOVERY " :
321 (val & PPD7D_CPLD_FLASH_CNTL_BOOT_WR_MASK) ? "BOOT " : "",
322 (val & PPD7D_CPLD_FLASH_CNTL_USER_WR_MASK) ? "USER " : "",
323 (val1 & PPC7D_CPLD_FLASH_CNTL_NVRAM_PROT_MASK) ? "NVRAM " :
326 (PPD7D_CPLD_FLASH_CNTL_RECO_WR_MASK |
327 PPD7D_CPLD_FLASH_CNTL_BOOT_WR_MASK |
328 PPD7D_CPLD_FLASH_CNTL_BOOT_WR_MASK)) == 0)
329 && ((val1 & PPC7D_CPLD_FLASH_CNTL_NVRAM_PROT_MASK) ==
332 inb(PPC7D_CPLD_SW_FLASH_WRITE_PROTECT) &
333 (PPC7D_CPLD_SW_FLASH_WRPROT_SYSBOOT_MASK |
334 PPC7D_CPLD_SW_FLASH_WRPROT_USER_MASK);
335 seq_printf(m, " software sector enables: %s%s%s\n",
336 (val1 & PPC7D_CPLD_SW_FLASH_WRPROT_SYSBOOT_MASK) ? "SYSBOOT "
338 (val1 & PPC7D_CPLD_SW_FLASH_WRPROT_USER_MASK) ? "USER " : "",
339 (val1 == 0) ? "NONE " : "");
341 seq_printf(m, "Boot options\t: %s%s%s%s\n",
342 (val & PPC7D_CPLD_FLASH_CNTL_ALTBOOT_LINK_MASK) ?
344 (val & PPC7D_CPLD_FLASH_CNTL_VMEBOOT_LINK_MASK) ? "VME " :
346 (val & PPC7D_CPLD_FLASH_CNTL_RECBOOT_LINK_MASK) ? "RECOVERY "
349 (PPC7D_CPLD_FLASH_CNTL_ALTBOOT_LINK_MASK |
350 PPC7D_CPLD_FLASH_CNTL_VMEBOOT_LINK_MASK |
351 PPC7D_CPLD_FLASH_CNTL_RECBOOT_LINK_MASK)) ==
354 val = inb(PPC7D_CPLD_EQUIPMENT_PRESENT_1);
355 seq_printf(m, "Fitted modules\t: %s%s%s%s\n",
356 (val & PPC7D_CPLD_EQPT_PRES_1_PMC1_MASK) ? "" : "PMC1 ",
357 (val & PPC7D_CPLD_EQPT_PRES_1_PMC2_MASK) ? "" : "PMC2 ",
358 (val & PPC7D_CPLD_EQPT_PRES_1_AFIX_MASK) ? "AFIX " : "",
359 ((val & (PPC7D_CPLD_EQPT_PRES_1_PMC1_MASK |
360 PPC7D_CPLD_EQPT_PRES_1_PMC2_MASK |
361 PPC7D_CPLD_EQPT_PRES_1_AFIX_MASK)) ==
362 (PPC7D_CPLD_EQPT_PRES_1_PMC1_MASK |
363 PPC7D_CPLD_EQPT_PRES_1_PMC2_MASK)) ? "NONE" : "");
365 if (val & PPC7D_CPLD_EQPT_PRES_1_AFIX_MASK) {
366 static const char *ids[] = {
368 "1553 (Dual Channel)",
369 "1553 (Single Channel)",
372 "1553 (Single Channel with sideband)",
373 "1553 (Dual Channel with sideband)",
376 u8 id = __raw_readb((void *)PPC7D_AFIX_REG_BASE + 0x03);
377 seq_printf(m, "AFIX module\t: 0x%hx [%s]\n", id,
378 id < 7 ? ids[id] : "unknown");
381 val = inb(PPC7D_CPLD_PCI_CONFIG);
382 val1 = (val & PPC7D_CPLD_PCI_CONFIG_PCI0_MASK) >> 4;
383 val2 = (val & PPC7D_CPLD_PCI_CONFIG_PCI1_MASK);
384 seq_printf(m, "PCI#0\t\t: %s\nPCI#1\t\t: %s\n",
385 pci_modes[val1], pci_modes[val2]);
387 val = inb(PPC7D_CPLD_EQUIPMENT_PRESENT_2);
388 seq_printf(m, "PMC1\t\t: %s\nPMC2\t\t: %s\n",
389 (val & PPC7D_CPLD_EQPT_PRES_3_PMC1_V_MASK) ? "3.3v" : "5v",
390 (val & PPC7D_CPLD_EQPT_PRES_3_PMC2_V_MASK) ? "3.3v" : "5v");
391 seq_printf(m, "PMC power source: %s\n",
392 (val & PPC7D_CPLD_EQPT_PRES_3_PMC_POWER_MASK) ? "VME" :
395 val = inb(PPC7D_CPLD_EQUIPMENT_PRESENT_4);
396 val2 = inb(PPC7D_CPLD_EQUIPMENT_PRESENT_2);
397 seq_printf(m, "Fit options\t: %s%s%s%s%s%s%s\n",
398 (val & PPC7D_CPLD_EQPT_PRES_4_LPT_MASK) ? "LPT " : "",
399 (val & PPC7D_CPLD_EQPT_PRES_4_PS2_FITTED) ? "PS2 " : "",
400 (val & PPC7D_CPLD_EQPT_PRES_4_USB2_FITTED) ? "USB2 " : "",
401 (val2 & PPC7D_CPLD_EQPT_PRES_2_UNIVERSE_MASK) ? "VME " : "",
402 (val2 & PPC7D_CPLD_EQPT_PRES_2_COM36_MASK) ? "COM3-6 " : "",
403 (val2 & PPC7D_CPLD_EQPT_PRES_2_GIGE_MASK) ? "eth0 " : "",
404 (val2 & PPC7D_CPLD_EQPT_PRES_2_DUALGIGE_MASK) ? "eth1 " :
407 val = inb(PPC7D_CPLD_ID_LINK);
408 val1 = val & (PPC7D_CPLD_ID_LINK_E6_MASK |
409 PPC7D_CPLD_ID_LINK_E7_MASK |
410 PPC7D_CPLD_ID_LINK_E12_MASK |
411 PPC7D_CPLD_ID_LINK_E13_MASK);
413 val = inb(PPC7D_CPLD_FLASH_WRITE_CNTL) &
414 (PPD7D_CPLD_FLASH_CNTL_WR_LINK_MASK |
415 PPD7D_CPLD_FLASH_CNTL_BOOT_LINK_MASK |
416 PPD7D_CPLD_FLASH_CNTL_USER_LINK_MASK);
418 seq_printf(m, "Board links present: %s%s%s%s%s%s%s%s\n",
419 (val1 & PPC7D_CPLD_ID_LINK_E6_MASK) ? "E6 " : "",
420 (val1 & PPC7D_CPLD_ID_LINK_E7_MASK) ? "E7 " : "",
421 (val & PPD7D_CPLD_FLASH_CNTL_WR_LINK_MASK) ? "E9 " : "",
422 (val & PPD7D_CPLD_FLASH_CNTL_BOOT_LINK_MASK) ? "E10 " : "",
423 (val & PPD7D_CPLD_FLASH_CNTL_USER_LINK_MASK) ? "E11 " : "",
424 (val1 & PPC7D_CPLD_ID_LINK_E12_MASK) ? "E12 " : "",
425 (val1 & PPC7D_CPLD_ID_LINK_E13_MASK) ? "E13 " : "",
426 ((val == 0) && (val1 == 0)) ? "NONE" : "");
428 val = inb(PPC7D_CPLD_WDOG_RESETSW_MASK);
429 seq_printf(m, "Front panel reset switch: %sabled\n",
430 (val & PPC7D_CPLD_WDOG_RESETSW_MASK) ? "dis" : "en");
435 static void __init ppc7d_calibrate_decr(void)
439 freq = 100000000 / 4;
441 pr_debug("time_init: decrementer frequency = %lu.%.6lu MHz\n",
442 freq / 1000000, freq % 1000000);
444 tb_ticks_per_jiffy = freq / HZ;
445 tb_to_us = mulhwu_scale_factor(freq, 1000000);
448 /*****************************************************************************
450 *****************************************************************************/
452 static irqreturn_t ppc7d_i8259_intr(int irq, void *dev_id, struct pt_regs *regs)
454 u32 temp = mv64x60_read(&bh, MV64x60_GPP_INTR_CAUSE);
455 if (temp & (1 << 28)) {
457 mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, temp & (~(1 << 28)));
465 * Each interrupt cause is assigned an IRQ number.
466 * Southbridge has 16*2 (two 8259's) interrupts.
467 * Discovery-II has 96 interrupts (cause-hi, cause-lo, gpp x 32).
468 * If multiple interrupts are pending, get_irq() returns the
469 * lowest pending irq number first.
472 * IRQ # Source Trig Active
473 * =============================================================
478 * =============================================================
479 * 0 ISA High Resolution Counter Edge
481 * 2 Cascade From (IRQ 8-15) Edge
482 * 3 Com 2 (Uart 2) Edge
483 * 4 Com 1 (Uart 1) Edge
484 * 5 PCI Int D/AFIX IRQZ ID4 (2,7) Level
488 * 9 PCI Int A/PMC 2/AFIX IRQW ID1 (2,0) Level
489 * 10 PCI Int B/PMC 1/AFIX IRQX ID2 (2,1) Level
492 * 13 Reserved internally by Ali M1535+
493 * 14 PCI Int C/VME/AFIX IRQY ID3 (2,6) Level
496 * 16..112 Discovery-II...
498 * MPP28 Southbridge Edge High
501 * Interrupts are cascaded through to the Discovery-II.
505 * CPLD --> ALI1535 -------> DISCOVERY-II
508 static void __init ppc7d_init_irq(void)
512 pr_debug("%s\n", __FUNCTION__);
516 /* IRQ 0..15 are handled by the cascaded 8259's of the Ali1535 */
517 for (irq = 0; irq < 16; irq++) {
518 irq_desc[irq].handler = &i8259_pic;
520 /* IRQs 5,6,9,10,11,14,15 are level sensitive */
521 irq_desc[5].status |= IRQ_LEVEL;
522 irq_desc[6].status |= IRQ_LEVEL;
523 irq_desc[9].status |= IRQ_LEVEL;
524 irq_desc[10].status |= IRQ_LEVEL;
525 irq_desc[11].status |= IRQ_LEVEL;
526 irq_desc[14].status |= IRQ_LEVEL;
527 irq_desc[15].status |= IRQ_LEVEL;
529 /* GPP28 is edge triggered */
530 irq_desc[mv64360_irq_base + MV64x60_IRQ_GPP28].status &= ~IRQ_LEVEL;
533 static u32 ppc7d_irq_canonicalize(u32 irq)
535 if ((irq >= 16) && (irq < (16 + 96)))
541 static int ppc7d_get_irq(struct pt_regs *regs)
545 irq = mv64360_get_irq(regs);
546 if (irq == (mv64360_irq_base + MV64x60_IRQ_GPP28))
547 irq = i8259_irq(regs);
552 * 9 PCI Int A/PMC 2/AFIX IRQW ID1 (2,0) Level
553 * 10 PCI Int B/PMC 1/AFIX IRQX ID2 (2,1) Level
554 * 14 PCI Int C/VME/AFIX IRQY ID3 (2,6) Level
555 * 5 PCI Int D/AFIX IRQZ ID4 (2,7) Level
557 static int __init ppc7d_map_irq(struct pci_dev *dev, unsigned char idsel,
560 static const char pci_irq_table[][4] =
562 * PCI IDSEL/INTPIN->INTLINE
566 {10, 14, 5, 9}, /* IDSEL 10 - PMC2 / AFIX IRQW */
567 {9, 10, 14, 5}, /* IDSEL 11 - PMC1 / AFIX IRQX */
568 {5, 9, 10, 14}, /* IDSEL 12 - AFIX IRQY */
569 {14, 5, 9, 10}, /* IDSEL 13 - AFIX IRQZ */
571 const long min_idsel = 10, max_idsel = 14, irqs_per_slot = 4;
573 pr_debug("%s: %04x/%04x/%x: idsel=%hx pin=%hu\n", __FUNCTION__,
574 dev->vendor, dev->device, PCI_FUNC(dev->devfn), idsel, pin);
576 return PCI_IRQ_TABLE_LOOKUP;
579 void __init ppc7d_intr_setup(void)
584 * Define GPP 28 interrupt polarity as active high
585 * input signal and level triggered
587 data = mv64x60_read(&bh, MV64x60_GPP_LEVEL_CNTL);
589 mv64x60_write(&bh, MV64x60_GPP_LEVEL_CNTL, data);
590 data = mv64x60_read(&bh, MV64x60_GPP_IO_CNTL);
592 mv64x60_write(&bh, MV64x60_GPP_IO_CNTL, data);
594 /* Config GPP intr ctlr to respond to level trigger */
595 data = mv64x60_read(&bh, MV64x60_COMM_ARBITER_CNTL);
597 mv64x60_write(&bh, MV64x60_COMM_ARBITER_CNTL, data);
599 /* XXXX Erranum FEr PCI-#8 */
600 data = mv64x60_read(&bh, MV64x60_PCI0_CMD);
601 data &= ~((1 << 5) | (1 << 9));
602 mv64x60_write(&bh, MV64x60_PCI0_CMD, data);
603 data = mv64x60_read(&bh, MV64x60_PCI1_CMD);
604 data &= ~((1 << 5) | (1 << 9));
605 mv64x60_write(&bh, MV64x60_PCI1_CMD, data);
608 * Dismiss and then enable interrupt on GPP interrupt cause
611 mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, ~(1 << 28));
612 data = mv64x60_read(&bh, MV64x60_GPP_INTR_MASK);
614 mv64x60_write(&bh, MV64x60_GPP_INTR_MASK, data);
617 * Dismiss and then enable interrupt on CPU #0 high cause reg
618 * BIT27 summarizes GPP interrupts 23-31
620 mv64x60_write(&bh, MV64360_IC_MAIN_CAUSE_HI, ~(1 << 27));
621 data = mv64x60_read(&bh, MV64360_IC_CPU0_INTR_MASK_HI);
623 mv64x60_write(&bh, MV64360_IC_CPU0_INTR_MASK_HI, data);
626 /*****************************************************************************
627 * Platform device data fixup routines.
628 *****************************************************************************/
630 #if defined(CONFIG_SERIAL_MPSC)
631 static void __init ppc7d_fixup_mpsc_pdata(struct platform_device *pdev)
633 struct mpsc_pdata *pdata;
635 pdata = (struct mpsc_pdata *)pdev->dev.platform_data;
637 pdata->max_idle = 40;
638 pdata->default_baud = PPC7D_DEFAULT_BAUD;
639 pdata->brg_clk_src = PPC7D_MPSC_CLK_SRC;
640 pdata->brg_clk_freq = PPC7D_MPSC_CLK_FREQ;
646 #if defined(CONFIG_MV643XX_ETH)
647 static void __init ppc7d_fixup_eth_pdata(struct platform_device *pdev)
649 struct mv643xx_eth_platform_data *eth_pd;
650 static u16 phy_addr[] = {
657 eth_pd = pdev->dev.platform_data;
658 eth_pd->force_phy_addr = 1;
659 eth_pd->phy_addr = phy_addr[pdev->id];
660 eth_pd->tx_queue_size = PPC7D_ETH_TX_QUEUE_SIZE;
661 eth_pd->rx_queue_size = PPC7D_ETH_RX_QUEUE_SIZE;
663 /* Adjust IRQ by mv64360_irq_base */
664 for (i = 0; i < pdev->num_resources; i++) {
665 struct resource *r = &pdev->resource[i];
667 if (r->flags & IORESOURCE_IRQ) {
668 r->start += mv64360_irq_base;
669 r->end += mv64360_irq_base;
670 pr_debug("%s, uses IRQ %d\n", pdev->name,
678 #if defined(CONFIG_I2C_MV64XXX)
680 ppc7d_fixup_i2c_pdata(struct platform_device *pdev)
682 struct mv64xxx_i2c_pdata *pdata;
685 pdata = pdev->dev.platform_data;
687 pdata = kmalloc(sizeof(*pdata), GFP_KERNEL);
691 memset(pdata, 0, sizeof(*pdata));
692 pdev->dev.platform_data = pdata;
695 /* divisors M=8, N=3 for 100kHz I2C from 133MHz system clock */
698 pdata->timeout = 500;
701 /* Adjust IRQ by mv64360_irq_base */
702 for (i = 0; i < pdev->num_resources; i++) {
703 struct resource *r = &pdev->resource[i];
705 if (r->flags & IORESOURCE_IRQ) {
706 r->start += mv64360_irq_base;
707 r->end += mv64360_irq_base;
708 pr_debug("%s, uses IRQ %d\n", pdev->name, (int) r->start);
714 static int __init ppc7d_platform_notify(struct device *dev)
718 void ((*rtn) (struct platform_device * pdev));
720 #if defined(CONFIG_SERIAL_MPSC)
721 { MPSC_CTLR_NAME ".0", ppc7d_fixup_mpsc_pdata },
722 { MPSC_CTLR_NAME ".1", ppc7d_fixup_mpsc_pdata },
724 #if defined(CONFIG_MV643XX_ETH)
725 { MV643XX_ETH_NAME ".0", ppc7d_fixup_eth_pdata },
726 { MV643XX_ETH_NAME ".1", ppc7d_fixup_eth_pdata },
727 { MV643XX_ETH_NAME ".2", ppc7d_fixup_eth_pdata },
729 #if defined(CONFIG_I2C_MV64XXX)
730 { MV64XXX_I2C_CTLR_NAME ".0", ppc7d_fixup_i2c_pdata },
733 struct platform_device *pdev;
736 if (dev && dev->bus_id)
737 for (i = 0; i < ARRAY_SIZE(dev_map); i++)
738 if (!strncmp(dev->bus_id, dev_map[i].bus_id,
741 pdev = container_of(dev,
742 struct platform_device,
744 dev_map[i].rtn(pdev);
750 /*****************************************************************************
752 * These aren't really fixups per se. They are used to init devices as they
753 * are found during PCI scan.
755 * The PPC7D has an HB8 PCI-X bridge which must be set up during a PCI
756 * scan in order to find other devices on its secondary side.
757 *****************************************************************************/
759 static void __init ppc7d_fixup_hb8(struct pci_dev *dev)
763 if (dev->bus->number == 0) {
764 pr_debug("PCI: HB8 init\n");
766 pci_write_config_byte(dev, 0x1c,
767 ((PPC7D_PCI0_IO_START_PCI_ADDR & 0xf000)
769 pci_write_config_byte(dev, 0x1d,
770 (((PPC7D_PCI0_IO_START_PCI_ADDR +
772 1) & 0xf000) >> 8) | 0x01);
773 pci_write_config_word(dev, 0x30,
774 PPC7D_PCI0_IO_START_PCI_ADDR >> 16);
775 pci_write_config_word(dev, 0x32,
776 ((PPC7D_PCI0_IO_START_PCI_ADDR +
780 pci_write_config_word(dev, 0x20,
781 PPC7D_PCI0_MEM0_START_PCI_LO_ADDR >> 16);
782 pci_write_config_word(dev, 0x22,
783 ((PPC7D_PCI0_MEM0_START_PCI_LO_ADDR +
784 PPC7D_PCI0_MEM0_SIZE -
786 pci_write_config_word(dev, 0x24, 0);
787 pci_write_config_word(dev, 0x26, 0);
788 pci_write_config_dword(dev, 0x28, 0);
789 pci_write_config_dword(dev, 0x2c, 0);
791 pci_read_config_word(dev, 0x3e, &val16);
792 val16 |= ((1 << 5) | (1 << 1)); /* signal master aborts and
795 val16 &= ~(1 << 2); /* ISA disable, so all ISA
796 * ports forwarded to secondary
798 pci_write_config_word(dev, 0x3e, val16);
802 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0028, ppc7d_fixup_hb8);
804 /* This should perhaps be a separate driver as we're actually initializing
805 * the chip for this board here. It's hardly a fixup...
807 static void __init ppc7d_fixup_ali1535(struct pci_dev *dev)
809 pr_debug("PCI: ALI1535 init\n");
811 if (dev->bus->number == 1) {
812 /* Configure the ISA Port Settings */
813 pci_write_config_byte(dev, 0x43, 0x00);
815 /* Disable PCI Interrupt polling mode */
816 pci_write_config_byte(dev, 0x45, 0x00);
818 /* Multifunction pin select INTFJ -> INTF */
819 pci_write_config_byte(dev, 0x78, 0x00);
821 /* Set PCI INT -> IRQ Routing control in for external
824 pci_write_config_byte(dev, 0x48, 0x31); /* [7-4] INT B -> IRQ10
825 * [3-0] INT A -> IRQ9
827 pci_write_config_byte(dev, 0x49, 0x5D); /* [7-4] INT D -> IRQ5
828 * [3-0] INT C -> IRQ14
832 /* NEC USB device on IRQ 11 (INTE) - INTF disabled */
833 pci_write_config_byte(dev, 0x4A, 0x09);
836 pci_write_config_byte(dev, 0x76, 0x07);
838 /* SIRQ I (COMS 5/6) use IRQ line 15.
839 * Positive (not subtractive) address decode.
841 pci_write_config_byte(dev, 0x44, 0x0f);
843 /* SIRQ II disabled */
844 pci_write_config_byte(dev, 0x75, 0x0);
846 /* On board USB and RTC disabled */
847 pci_write_config_word(dev, 0x52, (1 << 14));
848 pci_write_config_byte(dev, 0x74, 0x00);
850 /* On board IDE disabled */
851 pci_write_config_byte(dev, 0x58, 0x00);
853 /* Decode 32-bit addresses */
854 pci_write_config_byte(dev, 0x5b, 0);
856 /* Disable docking IO */
857 pci_write_config_word(dev, 0x5c, 0x0000);
859 /* Disable modem, enable sound */
860 pci_write_config_byte(dev, 0x77, (1 << 6));
862 /* Disable hot-docking mode */
863 pci_write_config_byte(dev, 0x7d, 0x00);
867 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1533, ppc7d_fixup_ali1535);
869 static int ppc7d_pci_exclude_device(u8 bus, u8 devfn)
871 /* Early versions of this board were fitted with IBM ALMA
872 * PCI-VME bridge chips. The PCI config space of these devices
873 * was not set up correctly and causes PCI scan problems.
875 if ((bus == 1) && (PCI_SLOT(devfn) == 4) && ppc7d_has_alma)
876 return PCIBIOS_DEVICE_NOT_FOUND;
878 return mv64x60_pci_exclude_device(bus, devfn);
881 /* This hook is called when each PCI bus is probed.
883 static void ppc7d_pci_fixup_bus(struct pci_bus *bus)
885 pr_debug("PCI BUS %hu: %lx/%lx %lx/%lx %lx/%lx %lx/%lx\n",
887 bus->resource[0] ? bus->resource[0]->start : 0,
888 bus->resource[0] ? bus->resource[0]->end : 0,
889 bus->resource[1] ? bus->resource[1]->start : 0,
890 bus->resource[1] ? bus->resource[1]->end : 0,
891 bus->resource[2] ? bus->resource[2]->start : 0,
892 bus->resource[2] ? bus->resource[2]->end : 0,
893 bus->resource[3] ? bus->resource[3]->start : 0,
894 bus->resource[3] ? bus->resource[3]->end : 0);
896 if ((bus->number == 1) && (bus->resource[2] != NULL)) {
897 /* Hide PCI window 2 of Bus 1 which is used only to
898 * map legacy ISA memory space.
900 bus->resource[2]->start = 0;
901 bus->resource[2]->end = 0;
902 bus->resource[2]->flags = 0;
906 /*****************************************************************************
907 * Board device setup code
908 *****************************************************************************/
910 void __init ppc7d_setup_peripherals(void)
914 /* Set up windows for boot CS */
915 mv64x60_set_32bit_window(&bh, MV64x60_CPU2BOOT_WIN,
916 PPC7D_BOOT_WINDOW_BASE, PPC7D_BOOT_WINDOW_SIZE,
918 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2BOOT_WIN);
920 /* Boot firmware configures the following DevCS addresses.
921 * DevCS0 - board control/status
922 * DevCS1 - test registers
923 * DevCS2 - AFIX port/address registers (for identifying)
926 * We don't use DevCS0, DevCS1.
928 val32 = mv64x60_read(&bh, MV64360_CPU_BAR_ENABLE);
929 val32 |= ((1 << 4) | (1 << 5));
930 mv64x60_write(&bh, MV64360_CPU_BAR_ENABLE, val32);
931 mv64x60_write(&bh, MV64x60_CPU2DEV_0_BASE, 0);
932 mv64x60_write(&bh, MV64x60_CPU2DEV_0_SIZE, 0);
933 mv64x60_write(&bh, MV64x60_CPU2DEV_1_BASE, 0);
934 mv64x60_write(&bh, MV64x60_CPU2DEV_1_SIZE, 0);
936 mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_2_WIN,
937 PPC7D_AFIX_REG_BASE, PPC7D_AFIX_REG_SIZE, 0);
938 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_2_WIN);
940 mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_3_WIN,
941 PPC7D_FLASH_BASE, PPC7D_FLASH_SIZE_ACTUAL, 0);
942 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_3_WIN);
944 mv64x60_set_32bit_window(&bh, MV64x60_CPU2SRAM_WIN,
945 PPC7D_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE,
947 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2SRAM_WIN);
949 /* Set up Enet->SRAM window */
950 mv64x60_set_32bit_window(&bh, MV64x60_ENET2MEM_4_WIN,
951 PPC7D_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE,
953 bh.ci->enable_window_32bit(&bh, MV64x60_ENET2MEM_4_WIN);
955 /* Give enet r/w access to memory region */
956 val32 = mv64x60_read(&bh, MV64360_ENET2MEM_ACC_PROT_0);
957 val32 |= (0x3 << (4 << 1));
958 mv64x60_write(&bh, MV64360_ENET2MEM_ACC_PROT_0, val32);
959 val32 = mv64x60_read(&bh, MV64360_ENET2MEM_ACC_PROT_1);
960 val32 |= (0x3 << (4 << 1));
961 mv64x60_write(&bh, MV64360_ENET2MEM_ACC_PROT_1, val32);
962 val32 = mv64x60_read(&bh, MV64360_ENET2MEM_ACC_PROT_2);
963 val32 |= (0x3 << (4 << 1));
964 mv64x60_write(&bh, MV64360_ENET2MEM_ACC_PROT_2, val32);
966 val32 = mv64x60_read(&bh, MV64x60_TIMR_CNTR_0_3_CNTL);
967 val32 &= ~((1 << 0) | (1 << 8) | (1 << 16) | (1 << 24));
968 mv64x60_write(&bh, MV64x60_TIMR_CNTR_0_3_CNTL, val32);
970 /* Enumerate pci bus.
972 * We scan PCI#0 first (the bus with the HB8 and other
973 * on-board peripherals). We must configure the 64360 before
974 * each scan, according to the bus number assignments. Busses
975 * are assigned incrementally, starting at 0. PCI#0 is
976 * usually assigned bus#0, the secondary side of the HB8 gets
977 * bus#1 and PCI#1 (second PMC site) gets bus#2. However, if
978 * any PMC card has a PCI bridge, these bus assignments will
982 /* Turn off PCI retries */
983 val32 = mv64x60_read(&bh, MV64x60_CPU_CONFIG);
985 mv64x60_write(&bh, MV64x60_CPU_CONFIG, val32);
988 mv64x60_set_bus(&bh, 0, 0);
989 bh.hose_a->first_busno = 0;
990 bh.hose_a->last_busno = 0xff;
991 bh.hose_a->last_busno = pciauto_bus_scan(bh.hose_a, 0);
992 printk(KERN_INFO "PCI#0: first=%d last=%d\n",
993 bh.hose_a->first_busno, bh.hose_a->last_busno);
996 bh.hose_b->first_busno = bh.hose_a->last_busno + 1;
997 mv64x60_set_bus(&bh, 1, bh.hose_b->first_busno);
998 bh.hose_b->last_busno = 0xff;
999 bh.hose_b->last_busno = pciauto_bus_scan(bh.hose_b,
1000 bh.hose_b->first_busno);
1001 printk(KERN_INFO "PCI#1: first=%d last=%d\n",
1002 bh.hose_b->first_busno, bh.hose_b->last_busno);
1004 /* Turn on PCI retries */
1005 val32 = mv64x60_read(&bh, MV64x60_CPU_CONFIG);
1006 val32 &= ~(1 << 17);
1007 mv64x60_write(&bh, MV64x60_CPU_CONFIG, val32);
1009 /* Setup interrupts */
1013 static void __init ppc7d_setup_bridge(void)
1015 struct mv64x60_setup_info si;
1019 mv64360_irq_base = 16; /* first 16 intrs are 2 x 8259's */
1021 memset(&si, 0, sizeof(si));
1023 si.phys_reg_base = CONFIG_MV64X60_NEW_BASE;
1025 si.pci_0.enable_bus = 1;
1026 si.pci_0.pci_io.cpu_base = PPC7D_PCI0_IO_START_PROC_ADDR;
1027 si.pci_0.pci_io.pci_base_hi = 0;
1028 si.pci_0.pci_io.pci_base_lo = PPC7D_PCI0_IO_START_PCI_ADDR;
1029 si.pci_0.pci_io.size = PPC7D_PCI0_IO_SIZE;
1030 si.pci_0.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
1031 si.pci_0.pci_mem[0].cpu_base = PPC7D_PCI0_MEM0_START_PROC_ADDR;
1032 si.pci_0.pci_mem[0].pci_base_hi = PPC7D_PCI0_MEM0_START_PCI_HI_ADDR;
1033 si.pci_0.pci_mem[0].pci_base_lo = PPC7D_PCI0_MEM0_START_PCI_LO_ADDR;
1034 si.pci_0.pci_mem[0].size = PPC7D_PCI0_MEM0_SIZE;
1035 si.pci_0.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE;
1036 si.pci_0.pci_mem[1].cpu_base = PPC7D_PCI0_MEM1_START_PROC_ADDR;
1037 si.pci_0.pci_mem[1].pci_base_hi = PPC7D_PCI0_MEM1_START_PCI_HI_ADDR;
1038 si.pci_0.pci_mem[1].pci_base_lo = PPC7D_PCI0_MEM1_START_PCI_LO_ADDR;
1039 si.pci_0.pci_mem[1].size = PPC7D_PCI0_MEM1_SIZE;
1040 si.pci_0.pci_mem[1].swap = MV64x60_CPU2PCI_SWAP_NONE;
1041 si.pci_0.pci_cmd_bits = 0;
1042 si.pci_0.latency_timer = 0x80;
1044 si.pci_1.enable_bus = 1;
1045 si.pci_1.pci_io.cpu_base = PPC7D_PCI1_IO_START_PROC_ADDR;
1046 si.pci_1.pci_io.pci_base_hi = 0;
1047 si.pci_1.pci_io.pci_base_lo = PPC7D_PCI1_IO_START_PCI_ADDR;
1048 si.pci_1.pci_io.size = PPC7D_PCI1_IO_SIZE;
1049 si.pci_1.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
1050 si.pci_1.pci_mem[0].cpu_base = PPC7D_PCI1_MEM0_START_PROC_ADDR;
1051 si.pci_1.pci_mem[0].pci_base_hi = PPC7D_PCI1_MEM0_START_PCI_HI_ADDR;
1052 si.pci_1.pci_mem[0].pci_base_lo = PPC7D_PCI1_MEM0_START_PCI_LO_ADDR;
1053 si.pci_1.pci_mem[0].size = PPC7D_PCI1_MEM0_SIZE;
1054 si.pci_1.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE;
1055 si.pci_1.pci_mem[1].cpu_base = PPC7D_PCI1_MEM1_START_PROC_ADDR;
1056 si.pci_1.pci_mem[1].pci_base_hi = PPC7D_PCI1_MEM1_START_PCI_HI_ADDR;
1057 si.pci_1.pci_mem[1].pci_base_lo = PPC7D_PCI1_MEM1_START_PCI_LO_ADDR;
1058 si.pci_1.pci_mem[1].size = PPC7D_PCI1_MEM1_SIZE;
1059 si.pci_1.pci_mem[1].swap = MV64x60_CPU2PCI_SWAP_NONE;
1060 si.pci_1.pci_cmd_bits = 0;
1061 si.pci_1.latency_timer = 0x80;
1063 /* Don't clear the SRAM window since we use it for debug */
1064 si.window_preserve_mask_32_lo = (1 << MV64x60_CPU2SRAM_WIN);
1066 printk(KERN_INFO "PCI: MV64360 PCI#0 IO at %x, size %x\n",
1067 si.pci_0.pci_io.cpu_base, si.pci_0.pci_io.size);
1068 printk(KERN_INFO "PCI: MV64360 PCI#1 IO at %x, size %x\n",
1069 si.pci_1.pci_io.cpu_base, si.pci_1.pci_io.size);
1071 for (i = 0; i < MV64x60_CPU2MEM_WINDOWS; i++) {
1072 #if defined(CONFIG_NOT_COHERENT_CACHE)
1073 si.cpu_prot_options[i] = 0;
1074 si.enet_options[i] = MV64360_ENET2MEM_SNOOP_NONE;
1075 si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_NONE;
1076 si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_NONE;
1078 si.pci_0.acc_cntl_options[i] =
1079 MV64360_PCI_ACC_CNTL_SNOOP_NONE |
1080 MV64360_PCI_ACC_CNTL_SWAP_NONE |
1081 MV64360_PCI_ACC_CNTL_MBURST_128_BYTES |
1082 MV64360_PCI_ACC_CNTL_RDSIZE_256_BYTES;
1084 si.pci_1.acc_cntl_options[i] =
1085 MV64360_PCI_ACC_CNTL_SNOOP_NONE |
1086 MV64360_PCI_ACC_CNTL_SWAP_NONE |
1087 MV64360_PCI_ACC_CNTL_MBURST_128_BYTES |
1088 MV64360_PCI_ACC_CNTL_RDSIZE_256_BYTES;
1090 si.cpu_prot_options[i] = 0;
1091 /* All PPC7D hardware uses B0 or newer MV64360 silicon which
1092 * does not have snoop bugs.
1094 si.enet_options[i] = MV64360_ENET2MEM_SNOOP_WB;
1095 si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_WB;
1096 si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_WB;
1098 si.pci_0.acc_cntl_options[i] =
1099 MV64360_PCI_ACC_CNTL_SNOOP_WB |
1100 MV64360_PCI_ACC_CNTL_SWAP_NONE |
1101 MV64360_PCI_ACC_CNTL_MBURST_32_BYTES |
1102 MV64360_PCI_ACC_CNTL_RDSIZE_32_BYTES;
1104 si.pci_1.acc_cntl_options[i] =
1105 MV64360_PCI_ACC_CNTL_SNOOP_WB |
1106 MV64360_PCI_ACC_CNTL_SWAP_NONE |
1107 MV64360_PCI_ACC_CNTL_MBURST_32_BYTES |
1108 MV64360_PCI_ACC_CNTL_RDSIZE_32_BYTES;
1112 /* Lookup PCI host bridges */
1113 if (mv64x60_init(&bh, &si))
1114 printk(KERN_ERR "MV64360 initialization failed.\n");
1116 pr_debug("MV64360 regs @ %lx/%p\n", bh.p_base, bh.v_base);
1118 /* Enable WB Cache coherency on SRAM */
1119 temp = mv64x60_read(&bh, MV64360_SRAM_CONFIG);
1120 pr_debug("SRAM_CONFIG: %x\n", temp);
1121 #if defined(CONFIG_NOT_COHERENT_CACHE)
1122 mv64x60_write(&bh, MV64360_SRAM_CONFIG, temp & ~0x2);
1124 mv64x60_write(&bh, MV64360_SRAM_CONFIG, temp | 0x2);
1126 /* If system operates with internal bus arbiter (CPU master
1127 * control bit8) clear AACK Delay bit [25] in CPU
1128 * configuration register.
1130 temp = mv64x60_read(&bh, MV64x60_CPU_MASTER_CNTL);
1131 if (temp & (1 << 8)) {
1132 temp = mv64x60_read(&bh, MV64x60_CPU_CONFIG);
1133 mv64x60_write(&bh, MV64x60_CPU_CONFIG, (temp & ~(1 << 25)));
1136 /* Data and address parity is enabled */
1137 temp = mv64x60_read(&bh, MV64x60_CPU_CONFIG);
1138 mv64x60_write(&bh, MV64x60_CPU_CONFIG,
1139 (temp | (1 << 26) | (1 << 19)));
1141 pci_dram_offset = 0; /* sys mem at same addr on PCI & cpu bus */
1142 ppc_md.pci_swizzle = common_swizzle;
1143 ppc_md.pci_map_irq = ppc7d_map_irq;
1144 ppc_md.pci_exclude_device = ppc7d_pci_exclude_device;
1146 mv64x60_set_bus(&bh, 0, 0);
1147 bh.hose_a->first_busno = 0;
1148 bh.hose_a->last_busno = 0xff;
1149 bh.hose_a->mem_space.start = PPC7D_PCI0_MEM0_START_PCI_LO_ADDR;
1150 bh.hose_a->mem_space.end =
1151 PPC7D_PCI0_MEM0_START_PCI_LO_ADDR + PPC7D_PCI0_MEM0_SIZE;
1153 /* These will be set later, as a result of PCI0 scan */
1154 bh.hose_b->first_busno = 0;
1155 bh.hose_b->last_busno = 0xff;
1156 bh.hose_b->mem_space.start = PPC7D_PCI1_MEM0_START_PCI_LO_ADDR;
1157 bh.hose_b->mem_space.end =
1158 PPC7D_PCI1_MEM0_START_PCI_LO_ADDR + PPC7D_PCI1_MEM0_SIZE;
1160 pr_debug("MV64360: PCI#0 IO decode %08x/%08x IO remap %08x\n",
1161 mv64x60_read(&bh, 0x48), mv64x60_read(&bh, 0x50),
1162 mv64x60_read(&bh, 0xf0));
1165 static void __init ppc7d_setup_arch(void)
1169 loops_per_jiffy = 100000000 / HZ;
1171 #ifdef CONFIG_BLK_DEV_INITRD
1173 ROOT_DEV = Root_RAM0;
1176 #ifdef CONFIG_ROOT_NFS
1177 ROOT_DEV = Root_NFS;
1179 ROOT_DEV = Root_HDA1;
1182 if ((cur_cpu_spec[0]->cpu_features & CPU_FTR_SPEC7450) ||
1183 (cur_cpu_spec[0]->cpu_features & CPU_FTR_L3CR))
1184 /* 745x is different. We only want to pass along enable. */
1185 _set_L2CR(L2CR_L2E);
1186 else if (cur_cpu_spec[0]->cpu_features & CPU_FTR_L2CR)
1187 /* All modules have 1MB of L2. We also assume that an
1188 * L2 divisor of 3 will work.
1190 _set_L2CR(L2CR_L2E | L2CR_L2SIZ_1MB | L2CR_L2CLK_DIV3
1191 | L2CR_L2RAM_PIPE | L2CR_L2OH_1_0 | L2CR_L2DF);
1193 if (cur_cpu_spec[0]->cpu_features & CPU_FTR_L3CR)
1197 #ifdef CONFIG_DUMMY_CONSOLE
1198 conswitchp = &dummy_con;
1201 /* Lookup PCI host bridges */
1202 if (ppc_md.progress)
1203 ppc_md.progress("ppc7d_setup_arch: calling setup_bridge", 0);
1205 ppc7d_setup_bridge();
1206 ppc7d_setup_peripherals();
1208 /* Disable ethernet. It might have been setup by the bootrom */
1209 for (port = 0; port < 3; port++)
1210 mv64x60_write(&bh, MV643XX_ETH_RECEIVE_QUEUE_COMMAND_REG(port),
1213 /* Clear queue pointers to ensure they are all initialized,
1214 * otherwise since queues 1-7 are unused, they have random
1215 * pointers which look strange in register dumps. Don't bother
1216 * with queue 0 since it will be initialized later.
1218 for (port = 0; port < 3; port++) {
1220 MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_1(port),
1223 MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_2(port),
1226 MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_3(port),
1229 MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_4(port),
1232 MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_5(port),
1235 MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_6(port),
1238 MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_7(port),
1242 printk(KERN_INFO "Radstone Technology PPC7D\n");
1243 if (ppc_md.progress)
1244 ppc_md.progress("ppc7d_setup_arch: exit", 0);
1247 /* This kernel command line parameter can be used to have the target
1248 * wait for a JTAG debugger to attach. Of course, a JTAG debugger
1249 * with hardware breakpoint support can have the target stop at any
1250 * location during init, but this is a convenience feature that makes
1251 * it easier in the common case of loading the code using the ppcboot
1254 static unsigned long ppc7d_wait_debugger;
1256 static int __init ppc7d_waitdbg(char *str)
1258 ppc7d_wait_debugger = 1;
1262 __setup("waitdbg", ppc7d_waitdbg);
1264 /* Second phase board init, called after other (architecture common)
1265 * low-level services have been initialized.
1267 static void ppc7d_init2(void)
1269 unsigned long flags;
1273 pr_debug("%s: enter\n", __FUNCTION__);
1275 /* Wait for debugger? */
1276 if (ppc7d_wait_debugger) {
1277 printk("Waiting for debugger...\n");
1279 while (readl(&ppc7d_wait_debugger)) ;
1282 /* Hook up i8259 interrupt which is connected to GPP28 */
1283 request_irq(mv64360_irq_base + MV64x60_IRQ_GPP28, ppc7d_i8259_intr,
1284 SA_INTERRUPT, "I8259 (GPP28) interrupt", (void *)0);
1286 /* Configure MPP16 as watchdog NMI, MPP17 as watchdog WDE */
1287 spin_lock_irqsave(&mv64x60_lock, flags);
1288 data = mv64x60_read(&bh, MV64x60_MPP_CNTL_2);
1289 data &= ~(0x0000000f << 0);
1290 data |= (0x00000004 << 0);
1291 data &= ~(0x0000000f << 4);
1292 data |= (0x00000004 << 4);
1293 mv64x60_write(&bh, MV64x60_MPP_CNTL_2, data);
1294 spin_unlock_irqrestore(&mv64x60_lock, flags);
1297 data8 = inb(PPC7D_CPLD_LEDS);
1300 outb(data8, PPC7D_CPLD_LEDS);
1302 pr_debug("%s: exit\n", __FUNCTION__);
1305 /* Called from machine_init(), early, before any of the __init functions
1306 * have run. We must init software-configurable pins before other functions
1307 * such as interrupt controllers are initialised.
1309 void __init platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
1310 unsigned long r6, unsigned long r7)
1315 /* Map 0xe0000000-0xffffffff early because we need access to SRAM
1316 * and the ISA memory space (for serial port) here. This mapping
1317 * is redone properly in ppc7d_map_io() later.
1319 mtspr(SPRN_DBAT3U, 0xe0003fff);
1320 mtspr(SPRN_DBAT3L, 0xe000002a);
1323 * Zero SRAM. Note that this generates parity errors on
1324 * internal data path in SRAM if it's first time accessing it
1327 * We do this ASAP to avoid parity errors when reading
1328 * uninitialized SRAM.
1330 memset((void *)PPC7D_INTERNAL_SRAM_BASE, 0, MV64360_SRAM_SIZE);
1332 pr_debug("platform_init: r3-r7: %lx %lx %lx %lx %lx\n",
1333 r3, r4, r5, r6, r7);
1335 parse_bootinfo(find_bootinfo());
1337 /* ASSUMPTION: If both r3 (bd_t pointer) and r6 (cmdline pointer)
1338 * are non-zero, then we should use the board info from the bd_t
1339 * structure and the cmdline pointed to by r6 instead of the
1340 * information from birecs, if any. Otherwise, use the information
1341 * from birecs as discovered by the preceeding call to
1342 * parse_bootinfo(). This rule should work with both PPCBoot, which
1343 * uses a bd_t board info structure, and the kernel boot wrapper,
1344 * which uses birecs.
1347 bd_t *bp = (bd_t *) __res;
1349 /* copy board info structure */
1350 memcpy((void *)__res, (void *)(r3 + KERNELBASE), sizeof(bd_t));
1351 /* copy command line */
1352 *(char *)(r7 + KERNELBASE) = 0;
1353 strcpy(cmd_line, (char *)(r6 + KERNELBASE));
1355 printk(KERN_INFO "Board info data:-\n");
1356 printk(KERN_INFO " Internal freq: %lu MHz, bus freq: %lu MHz\n",
1357 bp->bi_intfreq, bp->bi_busfreq);
1358 printk(KERN_INFO " Memory: %lx, size %lx\n", bp->bi_memstart,
1360 printk(KERN_INFO " Console baudrate: %lu\n", bp->bi_baudrate);
1361 printk(KERN_INFO " Ethernet address: "
1362 "%02x:%02x:%02x:%02x:%02x:%02x\n",
1363 bp->bi_enetaddr[0], bp->bi_enetaddr[1],
1364 bp->bi_enetaddr[2], bp->bi_enetaddr[3],
1365 bp->bi_enetaddr[4], bp->bi_enetaddr[5]);
1367 #ifdef CONFIG_BLK_DEV_INITRD
1368 /* take care of initrd if we have one */
1370 initrd_start = r4 + KERNELBASE;
1371 initrd_end = r5 + KERNELBASE;
1372 printk(KERN_INFO "INITRD @ %lx/%lx\n", initrd_start, initrd_end);
1374 #endif /* CONFIG_BLK_DEV_INITRD */
1376 /* Map in board regs, etc. */
1377 isa_io_base = 0xe8000000;
1378 isa_mem_base = 0xe8000000;
1379 pci_dram_offset = 0x00000000;
1380 ISA_DMA_THRESHOLD = 0x00ffffff;
1381 DMA_MODE_READ = 0x44;
1382 DMA_MODE_WRITE = 0x48;
1384 ppc_md.setup_arch = ppc7d_setup_arch;
1385 ppc_md.init = ppc7d_init2;
1386 ppc_md.show_cpuinfo = ppc7d_show_cpuinfo;
1387 ppc_md.irq_canonicalize = ppc7d_irq_canonicalize;
1388 ppc_md.init_IRQ = ppc7d_init_irq;
1389 ppc_md.get_irq = ppc7d_get_irq;
1391 ppc_md.restart = ppc7d_restart;
1392 ppc_md.power_off = ppc7d_power_off;
1393 ppc_md.halt = ppc7d_halt;
1395 ppc_md.find_end_of_memory = ppc7d_find_end_of_memory;
1396 ppc_md.setup_io_mappings = ppc7d_map_io;
1398 ppc_md.time_init = NULL;
1399 ppc_md.set_rtc_time = NULL;
1400 ppc_md.get_rtc_time = NULL;
1401 ppc_md.calibrate_decr = ppc7d_calibrate_decr;
1402 ppc_md.nvram_read_val = NULL;
1403 ppc_md.nvram_write_val = NULL;
1405 ppc_md.heartbeat = ppc7d_heartbeat;
1406 ppc_md.heartbeat_reset = HZ;
1407 ppc_md.heartbeat_count = ppc_md.heartbeat_reset;
1409 ppc_md.pcibios_fixup_bus = ppc7d_pci_fixup_bus;
1411 #if defined(CONFIG_SERIAL_MPSC) || defined(CONFIG_MV643XX_ETH) || \
1412 defined(CONFIG_I2C_MV64XXX)
1413 platform_notify = ppc7d_platform_notify;
1416 #ifdef CONFIG_SERIAL_MPSC
1417 /* On PPC7D, we must configure MPSC support via CPLD control
1420 outb(PPC7D_CPLD_RTS_COM4_SCLK |
1421 PPC7D_CPLD_RTS_COM56_ENABLED, PPC7D_CPLD_RTS);
1422 outb(PPC7D_CPLD_COMS_COM3_TCLKEN |
1423 PPC7D_CPLD_COMS_COM3_TXEN |
1424 PPC7D_CPLD_COMS_COM4_TCLKEN |
1425 PPC7D_CPLD_COMS_COM4_TXEN, PPC7D_CPLD_COMS);
1426 #endif /* CONFIG_SERIAL_MPSC */
1428 #if defined(CONFIG_KGDB) || defined(CONFIG_SERIAL_TEXT_DEBUG)
1429 ppc7d_early_serial_map();
1430 #ifdef CONFIG_SERIAL_TEXT_DEBUG
1431 #if defined(CONFIG_SERIAL_MPSC_CONSOLE)
1432 ppc_md.progress = mv64x60_mpsc_progress;
1433 #elif defined(CONFIG_SERIAL_8250)
1434 ppc_md.progress = gen550_progress;
1436 #error CONFIG_KGDB || CONFIG_SERIAL_TEXT_DEBUG has no supported CONFIG_SERIAL_XXX
1437 #endif /* CONFIG_SERIAL_8250 */
1438 #endif /* CONFIG_SERIAL_TEXT_DEBUG */
1439 #endif /* CONFIG_KGDB || CONFIG_SERIAL_TEXT_DEBUG */
1441 /* Enable write access to user flash. This is necessary for
1444 val8 = readb((void *)isa_io_base + PPC7D_CPLD_SW_FLASH_WRITE_PROTECT);
1445 writeb(val8 | (PPC7D_CPLD_SW_FLASH_WRPROT_ENABLED &
1446 PPC7D_CPLD_SW_FLASH_WRPROT_USER_MASK),
1447 (void *)isa_io_base + PPC7D_CPLD_SW_FLASH_WRITE_PROTECT);
1449 /* Determine if this board has IBM ALMA VME devices */
1450 val8 = readb((void *)isa_io_base + PPC7D_CPLD_BOARD_REVISION);
1451 rev_num = (val8 & PPC7D_CPLD_BOARD_REVISION_NUMBER_MASK) >> 5;
1456 console_printk[0] = 8;