2 * arch/ppc/platforms/ev64360.c
4 * Board setup routines for the Marvell EV-64360-BP Evaluation Board.
6 * Author: Lee Nicks <allinux@gmail.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.
16 #include <linux/config.h>
17 #include <linux/kernel.h>
18 #include <linux/pci.h>
19 #include <linux/kdev_t.h>
20 #include <linux/console.h>
21 #include <linux/initrd.h>
22 #include <linux/root_dev.h>
23 #include <linux/delay.h>
24 #include <linux/seq_file.h>
25 #include <linux/bootmem.h>
26 #include <linux/mtd/physmap.h>
27 #include <linux/mv643xx.h>
29 #include <linux/bootimg.h>
35 #include <asm/bootinfo.h>
36 #include <asm/ppcboot.h>
37 #include <asm/mv64x60.h>
38 #include <asm/machdep.h>
39 #include <platforms/ev64360.h>
41 #define BOARD_VENDOR "Marvell"
42 #define BOARD_MACHINE "EV-64360-BP"
44 static struct mv64x60_handle bh;
45 static void __iomem *sram_base;
47 static u32 ev64360_flash_size_0;
48 static u32 ev64360_flash_size_1;
50 static u32 ev64360_bus_frequency;
52 unsigned char __res[sizeof(bd_t)];
55 ev64360_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
61 ev64360_setup_bridge(void)
63 struct mv64x60_setup_info si;
66 memset(&si, 0, sizeof(si));
68 si.phys_reg_base = CONFIG_MV64X60_NEW_BASE;
71 si.pci_1.enable_bus = 1;
72 si.pci_1.pci_io.cpu_base = EV64360_PCI1_IO_START_PROC_ADDR;
73 si.pci_1.pci_io.pci_base_hi = 0;
74 si.pci_1.pci_io.pci_base_lo = EV64360_PCI1_IO_START_PCI_ADDR;
75 si.pci_1.pci_io.size = EV64360_PCI1_IO_SIZE;
76 si.pci_1.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
77 si.pci_1.pci_mem[0].cpu_base = EV64360_PCI1_MEM_START_PROC_ADDR;
78 si.pci_1.pci_mem[0].pci_base_hi = EV64360_PCI1_MEM_START_PCI_HI_ADDR;
79 si.pci_1.pci_mem[0].pci_base_lo = EV64360_PCI1_MEM_START_PCI_LO_ADDR;
80 si.pci_1.pci_mem[0].size = EV64360_PCI1_MEM_SIZE;
81 si.pci_1.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE;
82 si.pci_1.pci_cmd_bits = 0;
83 si.pci_1.latency_timer = 0x80;
85 si.pci_0.enable_bus = 0;
86 si.pci_1.enable_bus = 0;
89 for (i = 0; i < MV64x60_CPU2MEM_WINDOWS; i++) {
90 #if defined(CONFIG_NOT_COHERENT_CACHE)
91 si.cpu_prot_options[i] = 0;
92 si.enet_options[i] = MV64360_ENET2MEM_SNOOP_NONE;
93 si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_NONE;
94 si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_NONE;
96 si.pci_1.acc_cntl_options[i] =
97 MV64360_PCI_ACC_CNTL_SNOOP_NONE |
98 MV64360_PCI_ACC_CNTL_SWAP_NONE |
99 MV64360_PCI_ACC_CNTL_MBURST_128_BYTES |
100 MV64360_PCI_ACC_CNTL_RDSIZE_256_BYTES;
102 si.cpu_prot_options[i] = 0;
103 si.enet_options[i] = MV64360_ENET2MEM_SNOOP_NONE; /* errata */
104 si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_NONE; /* errata */
105 si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_NONE; /* errata */
107 si.pci_1.acc_cntl_options[i] =
108 MV64360_PCI_ACC_CNTL_SNOOP_WB |
109 MV64360_PCI_ACC_CNTL_SWAP_NONE |
110 MV64360_PCI_ACC_CNTL_MBURST_32_BYTES |
111 MV64360_PCI_ACC_CNTL_RDSIZE_32_BYTES;
115 if (mv64x60_init(&bh, &si))
116 printk(KERN_WARNING "Bridge initialization failed.\n");
119 pci_dram_offset = 0; /* sys mem at same addr on PCI & cpu bus */
120 ppc_md.pci_swizzle = common_swizzle;
121 ppc_md.pci_map_irq = ev64360_map_irq;
122 ppc_md.pci_exclude_device = mv64x60_pci_exclude_device;
124 mv64x60_set_bus(&bh, 1, 0);
125 bh.hose_b->first_busno = 0;
126 bh.hose_b->last_busno = 0xff;
130 /* Bridge & platform setup routines */
132 ev64360_intr_setup(void)
134 /* MPP 8, 9, and 10 */
135 mv64x60_clr_bits(&bh, MV64x60_MPP_CNTL_1, 0xfff);
138 * Define GPP 8,9,and 10 interrupt polarity as active low
139 * input signal and level triggered
141 mv64x60_set_bits(&bh, MV64x60_GPP_LEVEL_CNTL, 0x700);
142 mv64x60_clr_bits(&bh, MV64x60_GPP_IO_CNTL, 0x700);
144 /* Config GPP intr ctlr to respond to level trigger */
145 mv64x60_set_bits(&bh, MV64x60_COMM_ARBITER_CNTL, (1<<10));
147 /* Erranum FEr PCI-#8 */
148 mv64x60_clr_bits(&bh, MV64x60_PCI0_CMD, (1<<5) | (1<<9));
149 mv64x60_clr_bits(&bh, MV64x60_PCI1_CMD, (1<<5) | (1<<9));
152 * Dismiss and then enable interrupt on GPP interrupt cause
155 mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, ~0x700);
156 mv64x60_set_bits(&bh, MV64x60_GPP_INTR_MASK, 0x700);
159 * Dismiss and then enable interrupt on CPU #0 high cause reg
160 * BIT25 summarizes GPP interrupts 8-15
162 mv64x60_set_bits(&bh, MV64360_IC_CPU0_INTR_MASK_HI, (1<<25));
166 ev64360_setup_peripherals(void)
170 /* Set up window for boot CS */
171 mv64x60_set_32bit_window(&bh, MV64x60_CPU2BOOT_WIN,
172 EV64360_BOOT_WINDOW_BASE, EV64360_BOOT_WINDOW_SIZE, 0);
173 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2BOOT_WIN);
175 /* We only use the 32-bit flash */
176 mv64x60_get_32bit_window(&bh, MV64x60_CPU2BOOT_WIN, &base,
177 &ev64360_flash_size_0);
178 ev64360_flash_size_1 = 0;
180 mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_1_WIN,
181 EV64360_RTC_WINDOW_BASE, EV64360_RTC_WINDOW_SIZE, 0);
182 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_1_WIN);
184 mv64x60_set_32bit_window(&bh, MV64x60_CPU2SRAM_WIN,
185 EV64360_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE, 0);
186 bh.ci->enable_window_32bit(&bh, MV64x60_CPU2SRAM_WIN);
187 sram_base = ioremap(EV64360_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE);
189 /* Set up Enet->SRAM window */
190 mv64x60_set_32bit_window(&bh, MV64x60_ENET2MEM_4_WIN,
191 EV64360_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE, 0x2);
192 bh.ci->enable_window_32bit(&bh, MV64x60_ENET2MEM_4_WIN);
194 /* Give enet r/w access to memory region */
195 mv64x60_set_bits(&bh, MV64360_ENET2MEM_ACC_PROT_0, (0x3 << (4 << 1)));
196 mv64x60_set_bits(&bh, MV64360_ENET2MEM_ACC_PROT_1, (0x3 << (4 << 1)));
197 mv64x60_set_bits(&bh, MV64360_ENET2MEM_ACC_PROT_2, (0x3 << (4 << 1)));
199 mv64x60_clr_bits(&bh, MV64x60_PCI1_PCI_DECODE_CNTL, (1 << 3));
200 mv64x60_clr_bits(&bh, MV64x60_TIMR_CNTR_0_3_CNTL,
201 ((1 << 0) | (1 << 8) | (1 << 16) | (1 << 24)));
203 #if defined(CONFIG_NOT_COHERENT_CACHE)
204 mv64x60_write(&bh, MV64360_SRAM_CONFIG, 0x00160000);
206 mv64x60_write(&bh, MV64360_SRAM_CONFIG, 0x001600b2);
210 * Setting the SRAM to 0. Note that this generates parity errors on
211 * internal data path in SRAM since it's first time accessing it
212 * while after reset it's not configured.
214 memset(sram_base, 0, MV64360_SRAM_SIZE);
216 /* set up PCI interrupt controller */
217 ev64360_intr_setup();
221 ev64360_setup_arch(void)
224 ppc_md.progress("ev64360_setup_arch: enter", 0);
228 #ifdef CONFIG_BLK_DEV_INITRD
230 ROOT_DEV = Root_RAM0;
233 #ifdef CONFIG_ROOT_NFS
236 ROOT_DEV = Root_SDA2;
240 * Set up the L2CR register.
242 _set_L2CR(L2CR_L2E | L2CR_L2PE);
245 ppc_md.progress("ev64360_setup_arch: calling setup_bridge", 0);
247 ev64360_setup_bridge();
248 ev64360_setup_peripherals();
249 ev64360_bus_frequency = ev64360_bus_freq();
251 printk(KERN_INFO "%s %s port (C) 2005 Lee Nicks "
252 "(allinux@gmail.com)\n", BOARD_VENDOR, BOARD_MACHINE);
254 ppc_md.progress("ev64360_setup_arch: exit", 0);
257 /* Platform device data fixup routines. */
258 #if defined(CONFIG_SERIAL_MPSC)
260 ev64360_fixup_mpsc_pdata(struct platform_device *pdev)
262 struct mpsc_pdata *pdata;
264 pdata = (struct mpsc_pdata *)pdev->dev.platform_data;
266 pdata->max_idle = 40;
267 pdata->default_baud = EV64360_DEFAULT_BAUD;
268 pdata->brg_clk_src = EV64360_MPSC_CLK_SRC;
270 * TCLK (not SysCLk) is routed to BRG, then to the MPSC. On most parts,
271 * TCLK == SysCLK but on 64460, they are separate pins.
272 * SysCLK can go up to 200 MHz but TCLK can only go up to 133 MHz.
274 pdata->brg_clk_freq = min(ev64360_bus_frequency, MV64x60_TCLK_FREQ_MAX);
278 #if defined(CONFIG_MV643XX_ETH)
280 ev64360_fixup_eth_pdata(struct platform_device *pdev)
282 struct mv643xx_eth_platform_data *eth_pd;
283 static u16 phy_addr[] = {
284 EV64360_ETH0_PHY_ADDR,
285 EV64360_ETH1_PHY_ADDR,
286 EV64360_ETH2_PHY_ADDR,
289 eth_pd = pdev->dev.platform_data;
290 eth_pd->force_phy_addr = 1;
291 eth_pd->phy_addr = phy_addr[pdev->id];
292 eth_pd->tx_queue_size = EV64360_ETH_TX_QUEUE_SIZE;
293 eth_pd->rx_queue_size = EV64360_ETH_RX_QUEUE_SIZE;
298 ev64360_platform_notify(struct device *dev)
302 void ((*rtn)(struct platform_device *pdev));
304 #if defined(CONFIG_SERIAL_MPSC)
305 { MPSC_CTLR_NAME ".0", ev64360_fixup_mpsc_pdata },
306 { MPSC_CTLR_NAME ".1", ev64360_fixup_mpsc_pdata },
308 #if defined(CONFIG_MV643XX_ETH)
309 { MV643XX_ETH_NAME ".0", ev64360_fixup_eth_pdata },
310 { MV643XX_ETH_NAME ".1", ev64360_fixup_eth_pdata },
311 { MV643XX_ETH_NAME ".2", ev64360_fixup_eth_pdata },
314 struct platform_device *pdev;
317 if (dev && dev->bus_id)
318 for (i=0; i<ARRAY_SIZE(dev_map); i++)
319 if (!strncmp(dev->bus_id, dev_map[i].bus_id,
322 pdev = container_of(dev,
323 struct platform_device, dev);
324 dev_map[i].rtn(pdev);
330 #ifdef CONFIG_MTD_PHYSMAP
339 * FLASH Amount: 0xff000000 - 0xffffffff
340 * ------------- -----------------------
341 * Reserved: 0xff000000 - 0xff03ffff
342 * JFFS2 file system: 0xff040000 - 0xffefffff
343 * U-boot: 0xfff00000 - 0xffffffff
346 ev64360_setup_mtd(void)
350 static struct mtd_partition *ptbl;
352 size = ev64360_flash_size_0 + ev64360_flash_size_1;
358 if ((ptbl = kmalloc(ptbl_entries * sizeof(struct mtd_partition),
359 GFP_KERNEL)) == NULL) {
361 printk(KERN_WARNING "Can't alloc MTD partition table\n");
364 memset(ptbl, 0, ptbl_entries * sizeof(struct mtd_partition));
366 ptbl[0].name = "reserved";
368 ptbl[0].size = EV64360_MTD_RESERVED_SIZE;
369 ptbl[1].name = "jffs2";
370 ptbl[1].offset = EV64360_MTD_RESERVED_SIZE;
371 ptbl[1].size = EV64360_MTD_JFFS2_SIZE;
372 ptbl[2].name = "U-BOOT";
373 ptbl[2].offset = EV64360_MTD_RESERVED_SIZE + EV64360_MTD_JFFS2_SIZE;
374 ptbl[2].size = EV64360_MTD_UBOOT_SIZE;
376 physmap_map.size = size;
377 physmap_set_partitions(ptbl, ptbl_entries);
381 arch_initcall(ev64360_setup_mtd);
385 ev64360_restart(char *cmd)
387 ulong i = 0xffffffff;
388 volatile unsigned char * rtc_base = ioremap(EV64360_RTC_WINDOW_BASE,0x4000);
390 /* issue hard reset */
391 rtc_base[0xf] = 0x80;
392 rtc_base[0xc] = 0x00;
393 rtc_base[0xd] = 0x01;
394 rtc_base[0xf] = 0x83;
397 panic("restart failed\n");
408 ev64360_power_off(void)
415 ev64360_show_cpuinfo(struct seq_file *m)
417 seq_printf(m, "vendor\t\t: " BOARD_VENDOR "\n");
418 seq_printf(m, "machine\t\t: " BOARD_MACHINE "\n");
419 seq_printf(m, "bus speed\t: %dMHz\n", ev64360_bus_frequency/1000/1000);
425 ev64360_calibrate_decr(void)
429 freq = ev64360_bus_frequency / 4;
431 printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n",
432 (long)freq / 1000000, (long)freq % 1000000);
434 tb_ticks_per_jiffy = freq / HZ;
435 tb_to_us = mulhwu_scale_factor(freq, 1000000);
439 ev64360_find_end_of_memory(void)
441 return mv64x60_get_mem_size(CONFIG_MV64X60_NEW_BASE,
442 MV64x60_TYPE_MV64360);
446 ev64360_set_bat(void)
449 mtspr(SPRN_DBAT2U, 0xf0001ffe);
450 mtspr(SPRN_DBAT2L, 0xf000002a);
454 #if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(CONFIG_SERIAL_MPSC_CONSOLE)
458 io_block_mapping(CONFIG_MV64X60_NEW_BASE, \
459 CONFIG_MV64X60_NEW_BASE, \
460 0x00020000, _PAGE_IO);
465 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
466 unsigned long r6, unsigned long r7)
468 parse_bootinfo(find_bootinfo());
470 /* ASSUMPTION: If both r3 (bd_t pointer) and r6 (cmdline pointer)
471 * are non-zero, then we should use the board info from the bd_t
472 * structure and the cmdline pointed to by r6 instead of the
473 * information from birecs, if any. Otherwise, use the information
474 * from birecs as discovered by the preceeding call to
475 * parse_bootinfo(). This rule should work with both PPCBoot, which
476 * uses a bd_t board info structure, and the kernel boot wrapper,
480 /* copy board info structure */
481 memcpy( (void *)__res,(void *)(r3+KERNELBASE), sizeof(bd_t) );
482 /* copy command line */
483 *(char *)(r7+KERNELBASE) = 0;
484 strcpy(cmd_line, (char *)(r6+KERNELBASE));
490 ppc_md.setup_arch = ev64360_setup_arch;
491 ppc_md.show_cpuinfo = ev64360_show_cpuinfo;
492 ppc_md.init_IRQ = mv64360_init_irq;
493 ppc_md.get_irq = mv64360_get_irq;
494 ppc_md.restart = ev64360_restart;
495 ppc_md.power_off = ev64360_power_off;
496 ppc_md.halt = ev64360_halt;
497 ppc_md.find_end_of_memory = ev64360_find_end_of_memory;
498 ppc_md.calibrate_decr = ev64360_calibrate_decr;
500 #if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(CONFIG_SERIAL_MPSC_CONSOLE)
501 ppc_md.setup_io_mappings = ev64360_map_io;
502 ppc_md.progress = mv64x60_mpsc_progress;
503 mv64x60_progress_init(CONFIG_MV64X60_NEW_BASE);
506 #if defined(CONFIG_SERIAL_MPSC) || defined(CONFIG_MV643XX_ETH)
507 platform_notify = ev64360_platform_notify;
510 ev64360_set_bat(); /* Need for ev64360_find_end_of_memory and progress */