2 * arch/ppc/platforms/cpci690.c
4 * Board setup routines for the Force CPCI690 board.
6 * Author: Mark A. Greer <mgreer@mvista.com>
8 * 2003 (c) MontaVista Software, Inc. This file is licensed under
9 * the terms of the GNU General Public License version 2. This programr
10 * is licensed "as is" without any warranty of any kind, whether express
13 #include <linux/config.h>
14 #include <linux/delay.h>
15 #include <linux/pci.h>
16 #include <linux/ide.h>
17 #include <linux/irq.h>
19 #include <linux/seq_file.h>
20 #include <linux/console.h>
21 #include <linux/initrd.h>
22 #include <linux/root_dev.h>
23 #include <linux/mv643xx.h>
24 #include <linux/platform_device.h>
25 #include <asm/bootinfo.h>
26 #include <asm/machdep.h>
29 #include <asm/mv64x60.h>
30 #include <platforms/cpci690.h>
32 #define BOARD_VENDOR "Force"
33 #define BOARD_MACHINE "CPCI690"
35 /* Set IDE controllers into Native mode? */
36 #define SET_PCI_IDE_NATIVE
38 static struct mv64x60_handle bh;
39 static void __iomem *cpci690_br_base;
44 cpci690_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
46 struct pci_controller *hose = pci_bus_to_hose(dev->bus->number);
48 if (hose->index == 0) {
49 static char pci_irq_table[][4] =
51 * PCI IDSEL/INTPIN->INTLINE
55 { 90, 91, 88, 89 }, /* IDSEL 30/20 - Sentinel */
58 const long min_idsel = 20, max_idsel = 20, irqs_per_slot = 4;
59 return PCI_IRQ_TABLE_LOOKUP;
61 static char pci_irq_table[][4] =
63 * PCI IDSEL/INTPIN->INTLINE
67 { 93, 94, 95, 92 }, /* IDSEL 28/18 - PMC slot 2 */
68 { 0, 0, 0, 0 }, /* IDSEL 29/19 - Not used */
69 { 94, 95, 92, 93 }, /* IDSEL 30/20 - PMC slot 1 */
72 const long min_idsel = 18, max_idsel = 20, irqs_per_slot = 4;
73 return PCI_IRQ_TABLE_LOOKUP;
77 #define GB (1024UL * 1024UL * 1024UL)
80 cpci690_get_bus_freq(void)
82 if (boot_mem_size >= (1*GB)) /* bus speed based on mem size */
88 static const unsigned int cpu_750xx[32] = { /* 750FX & 750GX */
89 0, 0, 2, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,/* 0-15*/
90 16, 17, 18, 19, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 0 /*16-31*/
94 cpci690_get_cpu_freq(void)
96 unsigned long pll_cfg;
98 pll_cfg = (mfspr(SPRN_HID1) & 0xf8000000) >> 27;
99 return cpci690_get_bus_freq() * cpu_750xx[pll_cfg]/2;
103 cpci690_setup_bridge(void)
105 struct mv64x60_setup_info si;
108 memset(&si, 0, sizeof(si));
110 si.phys_reg_base = CONFIG_MV64X60_NEW_BASE;
112 si.pci_0.enable_bus = 1;
113 si.pci_0.pci_io.cpu_base = CPCI690_PCI0_IO_START_PROC_ADDR;
114 si.pci_0.pci_io.pci_base_hi = 0;
115 si.pci_0.pci_io.pci_base_lo = CPCI690_PCI0_IO_START_PCI_ADDR;
116 si.pci_0.pci_io.size = CPCI690_PCI0_IO_SIZE;
117 si.pci_0.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
118 si.pci_0.pci_mem[0].cpu_base = CPCI690_PCI0_MEM_START_PROC_ADDR;
119 si.pci_0.pci_mem[0].pci_base_hi = CPCI690_PCI0_MEM_START_PCI_HI_ADDR;
120 si.pci_0.pci_mem[0].pci_base_lo = CPCI690_PCI0_MEM_START_PCI_LO_ADDR;
121 si.pci_0.pci_mem[0].size = CPCI690_PCI0_MEM_SIZE;
122 si.pci_0.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE;
123 si.pci_0.pci_cmd_bits = 0;
124 si.pci_0.latency_timer = 0x80;
126 si.pci_1.enable_bus = 1;
127 si.pci_1.pci_io.cpu_base = CPCI690_PCI1_IO_START_PROC_ADDR;
128 si.pci_1.pci_io.pci_base_hi = 0;
129 si.pci_1.pci_io.pci_base_lo = CPCI690_PCI1_IO_START_PCI_ADDR;
130 si.pci_1.pci_io.size = CPCI690_PCI1_IO_SIZE;
131 si.pci_1.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
132 si.pci_1.pci_mem[0].cpu_base = CPCI690_PCI1_MEM_START_PROC_ADDR;
133 si.pci_1.pci_mem[0].pci_base_hi = CPCI690_PCI1_MEM_START_PCI_HI_ADDR;
134 si.pci_1.pci_mem[0].pci_base_lo = CPCI690_PCI1_MEM_START_PCI_LO_ADDR;
135 si.pci_1.pci_mem[0].size = CPCI690_PCI1_MEM_SIZE;
136 si.pci_1.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE;
137 si.pci_1.pci_cmd_bits = 0;
138 si.pci_1.latency_timer = 0x80;
140 for (i=0; i<MV64x60_CPU2MEM_WINDOWS; i++) {
141 si.cpu_prot_options[i] = 0;
142 si.cpu_snoop_options[i] = GT64260_CPU_SNOOP_WB;
143 si.pci_0.acc_cntl_options[i] =
144 GT64260_PCI_ACC_CNTL_DREADEN |
145 GT64260_PCI_ACC_CNTL_RDPREFETCH |
146 GT64260_PCI_ACC_CNTL_RDLINEPREFETCH |
147 GT64260_PCI_ACC_CNTL_RDMULPREFETCH |
148 GT64260_PCI_ACC_CNTL_SWAP_NONE |
149 GT64260_PCI_ACC_CNTL_MBURST_32_BTYES;
150 si.pci_0.snoop_options[i] = GT64260_PCI_SNOOP_WB;
151 si.pci_1.acc_cntl_options[i] =
152 GT64260_PCI_ACC_CNTL_DREADEN |
153 GT64260_PCI_ACC_CNTL_RDPREFETCH |
154 GT64260_PCI_ACC_CNTL_RDLINEPREFETCH |
155 GT64260_PCI_ACC_CNTL_RDMULPREFETCH |
156 GT64260_PCI_ACC_CNTL_SWAP_NONE |
157 GT64260_PCI_ACC_CNTL_MBURST_32_BTYES;
158 si.pci_1.snoop_options[i] = GT64260_PCI_SNOOP_WB;
161 /* Lookup PCI host bridges */
162 if (mv64x60_init(&bh, &si))
163 printk(KERN_ERR "Bridge initialization failed.\n");
165 pci_dram_offset = 0; /* System mem at same addr on PCI & cpu bus */
166 ppc_md.pci_swizzle = common_swizzle;
167 ppc_md.pci_map_irq = cpci690_map_irq;
168 ppc_md.pci_exclude_device = mv64x60_pci_exclude_device;
170 mv64x60_set_bus(&bh, 0, 0);
171 bh.hose_a->first_busno = 0;
172 bh.hose_a->last_busno = 0xff;
173 bh.hose_a->last_busno = pciauto_bus_scan(bh.hose_a, 0);
175 bh.hose_b->first_busno = bh.hose_a->last_busno + 1;
176 mv64x60_set_bus(&bh, 1, bh.hose_b->first_busno);
177 bh.hose_b->last_busno = 0xff;
178 bh.hose_b->last_busno = pciauto_bus_scan(bh.hose_b,
179 bh.hose_b->first_busno);
183 cpci690_setup_peripherals(void)
185 /* Set up windows to CPLD, RTC/TODC, IPMI. */
186 mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_0_WIN, CPCI690_BR_BASE,
188 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_0_WIN);
189 cpci690_br_base = ioremap(CPCI690_BR_BASE, CPCI690_BR_SIZE);
191 mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_1_WIN, CPCI690_TODC_BASE,
192 CPCI690_TODC_SIZE, 0);
193 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_1_WIN);
194 TODC_INIT(TODC_TYPE_MK48T35, 0, 0,
195 ioremap(CPCI690_TODC_BASE, CPCI690_TODC_SIZE), 8);
197 mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_2_WIN, CPCI690_IPMI_BASE,
198 CPCI690_IPMI_SIZE, 0);
199 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_2_WIN);
201 mv64x60_set_bits(&bh, MV64x60_PCI0_ARBITER_CNTL, (1<<31));
202 mv64x60_set_bits(&bh, MV64x60_PCI1_ARBITER_CNTL, (1<<31));
204 mv64x60_set_bits(&bh, MV64x60_CPU_MASTER_CNTL, (1<<9)); /* Only 1 cpu */
207 * Turn off timer/counters. Not turning off watchdog timer because
208 * can't read its reg on the 64260A so don't know if we'll be enabling
211 mv64x60_clr_bits(&bh, MV64x60_TIMR_CNTR_0_3_CNTL,
212 ((1<<0) | (1<<8) | (1<<16) | (1<<24)));
213 mv64x60_clr_bits(&bh, GT64260_TIMR_CNTR_4_7_CNTL,
214 ((1<<0) | (1<<8) | (1<<16) | (1<<24)));
217 * Set MPSC Multiplex RMII
218 * NOTE: ethernet driver modifies bit 0 and 1
220 mv64x60_write(&bh, GT64260_MPP_SERIAL_PORTS_MULTIPLEX, 0x00001102);
222 #define GPP_EXTERNAL_INTERRUPTS \
223 ((1<<24) | (1<<25) | (1<<26) | (1<<27) | \
224 (1<<28) | (1<<29) | (1<<30) | (1<<31))
225 /* PCI interrupts are inputs */
226 mv64x60_clr_bits(&bh, MV64x60_GPP_IO_CNTL, GPP_EXTERNAL_INTERRUPTS);
227 /* PCI interrupts are active low */
228 mv64x60_set_bits(&bh, MV64x60_GPP_LEVEL_CNTL, GPP_EXTERNAL_INTERRUPTS);
230 /* Clear any pending interrupts for these inputs and enable them. */
231 mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, ~GPP_EXTERNAL_INTERRUPTS);
232 mv64x60_set_bits(&bh, MV64x60_GPP_INTR_MASK, GPP_EXTERNAL_INTERRUPTS);
234 /* Route MPP interrupt inputs to GPP */
235 mv64x60_write(&bh, MV64x60_MPP_CNTL_2, 0x00000000);
236 mv64x60_write(&bh, MV64x60_MPP_CNTL_3, 0x00000000);
240 cpci690_setup_arch(void)
243 ppc_md.progress("cpci690_setup_arch: enter", 0);
244 #ifdef CONFIG_BLK_DEV_INITRD
246 ROOT_DEV = Root_RAM0;
249 #ifdef CONFIG_ROOT_NFS
252 ROOT_DEV = Root_SDA2;
256 ppc_md.progress("cpci690_setup_arch: Enabling L2 cache", 0);
258 /* Enable L2 and L3 caches (if 745x) */
259 _set_L2CR(_get_L2CR() | L2CR_L2E);
260 _set_L3CR(_get_L3CR() | L3CR_L3E);
263 ppc_md.progress("cpci690_setup_arch: Initializing bridge", 0);
265 cpci690_setup_bridge(); /* set up PCI bridge(s) */
266 cpci690_setup_peripherals(); /* set up chip selects/GPP/MPP etc */
269 ppc_md.progress("cpci690_setup_arch: bridge init complete", 0);
271 printk(KERN_INFO "%s %s port (C) 2003 MontaVista Software, Inc. "
272 "(source@mvista.com)\n", BOARD_VENDOR, BOARD_MACHINE);
275 ppc_md.progress("cpci690_setup_arch: exit", 0);
278 /* Platform device data fixup routines. */
279 #if defined(CONFIG_SERIAL_MPSC)
281 cpci690_fixup_mpsc_pdata(struct platform_device *pdev)
283 struct mpsc_pdata *pdata;
285 pdata = (struct mpsc_pdata *)pdev->dev.platform_data;
287 pdata->max_idle = 40;
288 pdata->default_baud = CPCI690_MPSC_BAUD;
289 pdata->brg_clk_src = CPCI690_MPSC_CLK_SRC;
290 pdata->brg_clk_freq = cpci690_get_bus_freq();
294 cpci690_platform_notify(struct device *dev)
298 void ((*rtn)(struct platform_device *pdev));
300 { MPSC_CTLR_NAME ".0", cpci690_fixup_mpsc_pdata },
301 { MPSC_CTLR_NAME ".1", cpci690_fixup_mpsc_pdata },
303 struct platform_device *pdev;
306 if (dev && dev->bus_id)
307 for (i=0; i<ARRAY_SIZE(dev_map); i++)
308 if (!strncmp(dev->bus_id, dev_map[i].bus_id,
311 pdev = container_of(dev,
312 struct platform_device, dev);
313 dev_map[i].rtn(pdev);
321 cpci690_reset_board(void)
326 out_8((cpci690_br_base + CPCI690_BR_SW_RESET), 0x11);
329 panic("restart failed\n");
333 cpci690_restart(char *cmd)
335 cpci690_reset_board();
346 cpci690_power_off(void)
353 cpci690_show_cpuinfo(struct seq_file *m)
357 seq_printf(m, "cpu MHz\t\t: %d\n",
358 (cpci690_get_cpu_freq() + 500000) / 1000000);
359 seq_printf(m, "bus MHz\t\t: %d\n",
360 (cpci690_get_bus_freq() + 500000) / 1000000);
361 seq_printf(m, "vendor\t\t: " BOARD_VENDOR "\n");
362 seq_printf(m, "machine\t\t: " BOARD_MACHINE "\n");
363 seq_printf(m, "FPGA Revision\t: %d\n",
364 in_8(cpci690_br_base + CPCI690_BR_MEM_CTLR) >> 5);
367 case MV64x60_TYPE_GT64260A:
370 case MV64x60_TYPE_GT64260B:
373 case MV64x60_TYPE_MV64360:
376 case MV64x60_TYPE_MV64460:
382 seq_printf(m, "bridge type\t: %s\n", s);
383 seq_printf(m, "bridge rev\t: 0x%x\n", bh.rev);
384 #if defined(CONFIG_NOT_COHERENT_CACHE)
385 seq_printf(m, "coherency\t: %s\n", "off");
387 seq_printf(m, "coherency\t: %s\n", "on");
394 cpci690_calibrate_decr(void)
398 freq = cpci690_get_bus_freq() / 4;
400 printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n",
401 freq/1000000, freq%1000000);
403 tb_ticks_per_jiffy = freq / HZ;
404 tb_to_us = mulhwu_scale_factor(freq, 1000000);
407 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB_MPSC)
411 io_block_mapping(CONFIG_MV64X60_NEW_BASE, CONFIG_MV64X60_NEW_BASE,
412 128 * 1024, _PAGE_IO);
417 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
418 unsigned long r6, unsigned long r7)
420 parse_bootinfo(find_bootinfo());
422 #ifdef CONFIG_BLK_DEV_INITRD
423 /* take care of initrd if we have one */
425 initrd_start = r4 + KERNELBASE;
426 initrd_end = r5 + KERNELBASE;
428 #endif /* CONFIG_BLK_DEV_INITRD */
432 ppc_md.setup_arch = cpci690_setup_arch;
433 ppc_md.show_cpuinfo = cpci690_show_cpuinfo;
434 ppc_md.init_IRQ = gt64260_init_irq;
435 ppc_md.get_irq = gt64260_get_irq;
436 ppc_md.restart = cpci690_restart;
437 ppc_md.power_off = cpci690_power_off;
438 ppc_md.halt = cpci690_halt;
439 ppc_md.time_init = todc_time_init;
440 ppc_md.set_rtc_time = todc_set_rtc_time;
441 ppc_md.get_rtc_time = todc_get_rtc_time;
442 ppc_md.nvram_read_val = todc_direct_read_val;
443 ppc_md.nvram_write_val = todc_direct_write_val;
444 ppc_md.calibrate_decr = cpci690_calibrate_decr;
446 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB_MPSC)
447 ppc_md.setup_io_mappings = cpci690_map_io;
448 #ifdef CONFIG_SERIAL_TEXT_DEBUG
449 ppc_md.progress = mv64x60_mpsc_progress;
450 mv64x60_progress_init(CONFIG_MV64X60_NEW_BASE);
451 #endif /* CONFIG_SERIAL_TEXT_DEBUG */
452 #endif /* defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB_MPSC) */
454 #if defined(CONFIG_SERIAL_MPSC)
455 platform_notify = cpci690_platform_notify;