/* * Board setup routines for the Marvell EV-64360-BP Evaluation Board. * * Author: Lee Nicks <allinux@gmail.com> * * Based on code done by Rabeeh Khoury - rabeeh@galileo.co.il * Based on code done by - Mark A. Greer <mgreer@mvista.com> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ #include <linux/kernel.h> #include <linux/pci.h> #include <linux/kdev_t.h> #include <linux/console.h> #include <linux/initrd.h> #include <linux/root_dev.h> #include <linux/delay.h> #include <linux/seq_file.h> #include <linux/bootmem.h> #include <linux/mtd/physmap.h> #include <linux/mv643xx.h> #include <linux/platform_device.h> #ifdef CONFIG_BOOTIMG #include <linux/bootimg.h> #endif #include <asm/page.h> #include <asm/time.h> #include <asm/smp.h> #include <asm/todc.h> #include <asm/bootinfo.h> #include <asm/ppcboot.h> #include <asm/mv64x60.h> #include <asm/machdep.h> #include <platforms/ev64360.h> #define BOARD_VENDOR "Marvell" #define BOARD_MACHINE "EV-64360-BP" static struct mv64x60_handle bh; static void __iomem *sram_base; static u32 ev64360_flash_size_0; static u32 ev64360_flash_size_1; static u32 ev64360_bus_frequency; unsigned char __res[sizeof(bd_t)]; TODC_ALLOC(); static int __init ev64360_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) { return 0; } static void __init ev64360_setup_bridge(void) { struct mv64x60_setup_info si; int i; memset(&si, 0, sizeof(si)); si.phys_reg_base = CONFIG_MV64X60_NEW_BASE; #ifdef CONFIG_PCI si.pci_1.enable_bus = 1; si.pci_1.pci_io.cpu_base = EV64360_PCI1_IO_START_PROC_ADDR; si.pci_1.pci_io.pci_base_hi = 0; si.pci_1.pci_io.pci_base_lo = EV64360_PCI1_IO_START_PCI_ADDR; si.pci_1.pci_io.size = EV64360_PCI1_IO_SIZE; si.pci_1.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE; si.pci_1.pci_mem[0].cpu_base = EV64360_PCI1_MEM_START_PROC_ADDR; si.pci_1.pci_mem[0].pci_base_hi = EV64360_PCI1_MEM_START_PCI_HI_ADDR; si.pci_1.pci_mem[0].pci_base_lo = EV64360_PCI1_MEM_START_PCI_LO_ADDR; si.pci_1.pci_mem[0].size = EV64360_PCI1_MEM_SIZE; si.pci_1.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE; si.pci_1.pci_cmd_bits = 0; si.pci_1.latency_timer = 0x80; #else si.pci_0.enable_bus = 0; si.pci_1.enable_bus = 0; #endif for (i = 0; i < MV64x60_CPU2MEM_WINDOWS; i++) { #if defined(CONFIG_NOT_COHERENT_CACHE) si.cpu_prot_options[i] = 0; si.enet_options[i] = MV64360_ENET2MEM_SNOOP_NONE; si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_NONE; si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_NONE; si.pci_1.acc_cntl_options[i] = MV64360_PCI_ACC_CNTL_SNOOP_NONE | MV64360_PCI_ACC_CNTL_SWAP_NONE | MV64360_PCI_ACC_CNTL_MBURST_128_BYTES | MV64360_PCI_ACC_CNTL_RDSIZE_256_BYTES; #else si.cpu_prot_options[i] = 0; si.enet_options[i] = MV64360_ENET2MEM_SNOOP_NONE; /* errata */ si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_NONE; /* errata */ si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_NONE; /* errata */ si.pci_1.acc_cntl_options[i] = MV64360_PCI_ACC_CNTL_SNOOP_WB | MV64360_PCI_ACC_CNTL_SWAP_NONE | MV64360_PCI_ACC_CNTL_MBURST_32_BYTES | MV64360_PCI_ACC_CNTL_RDSIZE_32_BYTES; #endif } if (mv64x60_init(&bh, &si)) printk(KERN_WARNING "Bridge initialization failed.\n"); #ifdef CONFIG_PCI pci_dram_offset = 0; /* sys mem at same addr on PCI & cpu bus */ ppc_md.pci_swizzle = common_swizzle; ppc_md.pci_map_irq = ev64360_map_irq; ppc_md.pci_exclude_device = mv64x60_pci_exclude_device; mv64x60_set_bus(&bh, 1, 0); bh.hose_b->first_busno = 0; bh.hose_b->last_busno = 0xff; #endif } /* Bridge & platform setup routines */ void __init ev64360_intr_setup(void) { /* MPP 8, 9, and 10 */ mv64x60_clr_bits(&bh, MV64x60_MPP_CNTL_1, 0xfff); /* * Define GPP 8,9,and 10 interrupt polarity as active low * input signal and level triggered */ mv64x60_set_bits(&bh, MV64x60_GPP_LEVEL_CNTL, 0x700); mv64x60_clr_bits(&bh, MV64x60_GPP_IO_CNTL, 0x700); /* Config GPP intr ctlr to respond to level trigger */ mv64x60_set_bits(&bh, MV64x60_COMM_ARBITER_CNTL, (1<<10)); /* Erranum FEr PCI-#8 */ mv64x60_clr_bits(&bh, MV64x60_PCI0_CMD, (1<<5) | (1<<9)); mv64x60_clr_bits(&bh, MV64x60_PCI1_CMD, (1<<5) | (1<<9)); /* * Dismiss and then enable interrupt on GPP interrupt cause * for CPU #0 */ mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, ~0x700); mv64x60_set_bits(&bh, MV64x60_GPP_INTR_MASK, 0x700); /* * Dismiss and then enable interrupt on CPU #0 high cause reg * BIT25 summarizes GPP interrupts 8-15 */ mv64x60_set_bits(&bh, MV64360_IC_CPU0_INTR_MASK_HI, (1<<25)); } void __init ev64360_setup_peripherals(void) { u32 base; /* Set up window for boot CS */ mv64x60_set_32bit_window(&bh, MV64x60_CPU2BOOT_WIN, EV64360_BOOT_WINDOW_BASE, EV64360_BOOT_WINDOW_SIZE, 0); bh.ci->enable_window_32bit(&bh, MV64x60_CPU2BOOT_WIN); /* We only use the 32-bit flash */ mv64x60_get_32bit_window(&bh, MV64x60_CPU2BOOT_WIN, &base, &ev64360_flash_size_0); ev64360_flash_size_1 = 0; mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_1_WIN, EV64360_RTC_WINDOW_BASE, EV64360_RTC_WINDOW_SIZE, 0); bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_1_WIN); TODC_INIT(TODC_TYPE_DS1501, 0, 0, ioremap(EV64360_RTC_WINDOW_BASE, EV64360_RTC_WINDOW_SIZE), 8); mv64x60_set_32bit_window(&bh, MV64x60_CPU2SRAM_WIN, EV64360_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE, 0); bh.ci->enable_window_32bit(&bh, MV64x60_CPU2SRAM_WIN); sram_base = ioremap(EV64360_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE); /* Set up Enet->SRAM window */ mv64x60_set_32bit_window(&bh, MV64x60_ENET2MEM_4_WIN, EV64360_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE, 0x2); bh.ci->enable_window_32bit(&bh, MV64x60_ENET2MEM_4_WIN); /* Give enet r/w access to memory region */ mv64x60_set_bits(&bh, MV64360_ENET2MEM_ACC_PROT_0, (0x3 << (4 << 1))); mv64x60_set_bits(&bh, MV64360_ENET2MEM_ACC_PROT_1, (0x3 << (4 << 1))); mv64x60_set_bits(&bh, MV64360_ENET2MEM_ACC_PROT_2, (0x3 << (4 << 1))); mv64x60_clr_bits(&bh, MV64x60_PCI1_PCI_DECODE_CNTL, (1 << 3)); mv64x60_clr_bits(&bh, MV64x60_TIMR_CNTR_0_3_CNTL, ((1 << 0) | (1 << 8) | (1 << 16) | (1 << 24))); #if defined(CONFIG_NOT_COHERENT_CACHE) mv64x60_write(&bh, MV64360_SRAM_CONFIG, 0x00160000); #else mv64x60_write(&bh, MV64360_SRAM_CONFIG, 0x001600b2); #endif /* * Setting the SRAM to 0. Note that this generates parity errors on * internal data path in SRAM since it's first time accessing it * while after reset it's not configured. */ memset(sram_base, 0, MV64360_SRAM_SIZE); /* set up PCI interrupt controller */ ev64360_intr_setup(); } static void __init ev64360_setup_arch(void) { if (ppc_md.progress) ppc_md.progress("ev64360_setup_arch: enter", 0); set_tb(0, 0); #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start) ROOT_DEV = Root_RAM0; else #endif #ifdef CONFIG_ROOT_NFS ROOT_DEV = Root_NFS; #else ROOT_DEV = Root_SDA2; #endif /* * Set up the L2CR register. */ _set_L2CR(L2CR_L2E | L2CR_L2PE); if (ppc_md.progress) ppc_md.progress("ev64360_setup_arch: calling setup_bridge", 0); ev64360_setup_bridge(); ev64360_setup_peripherals(); ev64360_bus_frequency = ev64360_bus_freq(); printk(KERN_INFO "%s %s port (C) 2005 Lee Nicks " "(allinux@gmail.com)\n", BOARD_VENDOR, BOARD_MACHINE); if (ppc_md.progress) ppc_md.progress("ev64360_setup_arch: exit", 0); } /* Platform device data fixup routines. */ #if defined(CONFIG_SERIAL_MPSC) static void __init ev64360_fixup_mpsc_pdata(struct platform_device *pdev) { struct mpsc_pdata *pdata; pdata = (struct mpsc_pdata *)pdev->dev.platform_data; pdata->max_idle = 40; pdata->default_baud = EV64360_DEFAULT_BAUD; pdata->brg_clk_src = EV64360_MPSC_CLK_SRC; /* * TCLK (not SysCLk) is routed to BRG, then to the MPSC. On most parts, * TCLK == SysCLK but on 64460, they are separate pins. * SysCLK can go up to 200 MHz but TCLK can only go up to 133 MHz. */ pdata->brg_clk_freq = min(ev64360_bus_frequency, MV64x60_TCLK_FREQ_MAX); } #endif #if defined(CONFIG_MV643XX_ETH) static void __init ev64360_fixup_eth_pdata(struct platform_device *pdev) { struct mv643xx_eth_platform_data *eth_pd; static u16 phy_addr[] = { EV64360_ETH0_PHY_ADDR, EV64360_ETH1_PHY_ADDR, EV64360_ETH2_PHY_ADDR, }; eth_pd = pdev->dev.platform_data; eth_pd->force_phy_addr = 1; eth_pd->phy_addr = phy_addr[pdev->id]; eth_pd->tx_queue_size = EV64360_ETH_TX_QUEUE_SIZE; eth_pd->rx_queue_size = EV64360_ETH_RX_QUEUE_SIZE; } #endif static int ev64360_platform_notify(struct device *dev) { static struct { char *bus_id; void ((*rtn)(struct platform_device *pdev)); } dev_map[] = { #if defined(CONFIG_SERIAL_MPSC) { MPSC_CTLR_NAME ".0", ev64360_fixup_mpsc_pdata }, { MPSC_CTLR_NAME ".1", ev64360_fixup_mpsc_pdata }, #endif #if defined(CONFIG_MV643XX_ETH) { MV643XX_ETH_NAME ".0", ev64360_fixup_eth_pdata }, { MV643XX_ETH_NAME ".1", ev64360_fixup_eth_pdata }, { MV643XX_ETH_NAME ".2", ev64360_fixup_eth_pdata }, #endif }; struct platform_device *pdev; int i; if (dev && dev->bus_id) for (i=0; i<ARRAY_SIZE(dev_map); i++) if (!strncmp(dev->bus_id, dev_map[i].bus_id, BUS_ID_SIZE)) { pdev = container_of(dev, struct platform_device, dev); dev_map[i].rtn(pdev); } return 0; } #ifdef CONFIG_MTD_PHYSMAP #ifndef MB #define MB (1 << 20) #endif /* * MTD Layout. * * FLASH Amount: 0xff000000 - 0xffffffff * ------------- ----------------------- * Reserved: 0xff000000 - 0xff03ffff * JFFS2 file system: 0xff040000 - 0xffefffff * U-boot: 0xfff00000 - 0xffffffff */ static int __init ev64360_setup_mtd(void) { u32 size; int ptbl_entries; static struct mtd_partition *ptbl; size = ev64360_flash_size_0 + ev64360_flash_size_1; if (!size) return -ENOMEM; ptbl_entries = 3; if ((ptbl = kzalloc(ptbl_entries * sizeof(struct mtd_partition), GFP_KERNEL)) == NULL) { printk(KERN_WARNING "Can't alloc MTD partition table\n"); return -ENOMEM; } ptbl[0].name = "reserved"; ptbl[0].offset = 0; ptbl[0].size = EV64360_MTD_RESERVED_SIZE; ptbl[1].name = "jffs2"; ptbl[1].offset = EV64360_MTD_RESERVED_SIZE; ptbl[1].size = EV64360_MTD_JFFS2_SIZE; ptbl[2].name = "U-BOOT"; ptbl[2].offset = EV64360_MTD_RESERVED_SIZE + EV64360_MTD_JFFS2_SIZE; ptbl[2].size = EV64360_MTD_UBOOT_SIZE; physmap_map.size = size; physmap_set_partitions(ptbl, ptbl_entries); return 0; } arch_initcall(ev64360_setup_mtd); #endif static void ev64360_restart(char *cmd) { ulong i = 0xffffffff; volatile unsigned char * rtc_base = ioremap(EV64360_RTC_WINDOW_BASE,0x4000); /* issue hard reset */ rtc_base[0xf] = 0x80; rtc_base[0xc] = 0x00; rtc_base[0xd] = 0x01; rtc_base[0xf] = 0x83; while (i-- > 0) ; panic("restart failed\n"); } static void ev64360_halt(void) { while (1) ; /* NOTREACHED */ } static void ev64360_power_off(void) { ev64360_halt(); /* NOTREACHED */ } static int ev64360_show_cpuinfo(struct seq_file *m) { seq_printf(m, "vendor\t\t: " BOARD_VENDOR "\n"); seq_printf(m, "machine\t\t: " BOARD_MACHINE "\n"); seq_printf(m, "bus speed\t: %dMHz\n", ev64360_bus_frequency/1000/1000); return 0; } static void __init ev64360_calibrate_decr(void) { u32 freq; freq = ev64360_bus_frequency / 4; printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n", (long)freq / 1000000, (long)freq % 1000000); tb_ticks_per_jiffy = freq / HZ; tb_to_us = mulhwu_scale_factor(freq, 1000000); } unsigned long __init ev64360_find_end_of_memory(void) { return mv64x60_get_mem_size(CONFIG_MV64X60_NEW_BASE, MV64x60_TYPE_MV64360); } static inline void ev64360_set_bat(void) { mb(); mtspr(SPRN_DBAT2U, 0xf0001ffe); mtspr(SPRN_DBAT2L, 0xf000002a); mb(); } #if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(CONFIG_SERIAL_MPSC_CONSOLE) static void __init ev64360_map_io(void) { io_block_mapping(CONFIG_MV64X60_NEW_BASE, \ CONFIG_MV64X60_NEW_BASE, \ 0x00020000, _PAGE_IO); } #endif void __init platform_init(unsigned long r3, unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7) { parse_bootinfo(find_bootinfo()); /* ASSUMPTION: If both r3 (bd_t pointer) and r6 (cmdline pointer) * are non-zero, then we should use the board info from the bd_t * structure and the cmdline pointed to by r6 instead of the * information from birecs, if any. Otherwise, use the information * from birecs as discovered by the preceding call to * parse_bootinfo(). This rule should work with both PPCBoot, which * uses a bd_t board info structure, and the kernel boot wrapper, * which uses birecs. */ if (r3 && r6) { /* copy board info structure */ memcpy( (void *)__res,(void *)(r3+KERNELBASE), sizeof(bd_t) ); /* copy command line */ *(char *)(r7+KERNELBASE) = 0; strcpy(cmd_line, (char *)(r6+KERNELBASE)); } #ifdef CONFIG_ISA isa_mem_base = 0; #endif ppc_md.setup_arch = ev64360_setup_arch; ppc_md.show_cpuinfo = ev64360_show_cpuinfo; ppc_md.init_IRQ = mv64360_init_irq; ppc_md.get_irq = mv64360_get_irq; ppc_md.restart = ev64360_restart; ppc_md.power_off = ev64360_power_off; ppc_md.halt = ev64360_halt; ppc_md.find_end_of_memory = ev64360_find_end_of_memory; ppc_md.init = NULL; ppc_md.time_init = todc_time_init; ppc_md.set_rtc_time = todc_set_rtc_time; ppc_md.get_rtc_time = todc_get_rtc_time; ppc_md.nvram_read_val = todc_direct_read_val; ppc_md.nvram_write_val = todc_direct_write_val; ppc_md.calibrate_decr = ev64360_calibrate_decr; #if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(CONFIG_SERIAL_MPSC_CONSOLE) ppc_md.setup_io_mappings = ev64360_map_io; ppc_md.progress = mv64x60_mpsc_progress; mv64x60_progress_init(CONFIG_MV64X60_NEW_BASE); #endif #if defined(CONFIG_SERIAL_MPSC) || defined(CONFIG_MV643XX_ETH) platform_notify = ev64360_platform_notify; #endif ev64360_set_bat(); /* Need for ev64360_find_end_of_memory and progress */ }