/* * (C) Copyright 2007 * Stefan Roese, DENX Software Engineering, sr@denx.de. * * 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <common.h> #include <command.h> #include <ppc440.h> #include <asm/processor.h> #include <asm/gpio.h> #include <asm/io.h> DECLARE_GLOBAL_DATA_PTR; extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ ulong flash_get_size(ulong base, int banknum); int misc_init_r_kbd(void); int board_early_init_f(void) { u32 sdr0_pfc1, sdr0_pfc2; u32 reg; /* PLB Write pipelining disabled. Denali Core workaround */ mtdcr(plb0_acr, 0xDE000000); mtdcr(plb1_acr, 0xDE000000); /*-------------------------------------------------------------------- * Setup the interrupt controller polarities, triggers, etc. *-------------------------------------------------------------------*/ mtdcr(uic0sr, 0xffffffff); /* clear all. if write with 1 then the status is cleared */ mtdcr(uic0er, 0x00000000); /* disable all */ mtdcr(uic0cr, 0x00000000); /* we have not critical interrupts at the moment */ mtdcr(uic0pr, 0xFFBFF1EF); /* Adjustment of the polarity */ mtdcr(uic0tr, 0x00000900); /* per ref-board manual */ mtdcr(uic0vr, 0x00000000); /* int31 highest, base=0x000 is within DDRAM */ mtdcr(uic0sr, 0xffffffff); /* clear all */ mtdcr(uic1sr, 0xffffffff); /* clear all */ mtdcr(uic1er, 0x00000000); /* disable all */ mtdcr(uic1cr, 0x00000000); /* all non-critical */ mtdcr(uic1pr, 0xFFFFC6A5); /* Adjustment of the polarity */ mtdcr(uic1tr, 0x60000040); /* per ref-board manual */ mtdcr(uic1vr, 0x00000000); /* int31 highest, base=0x000 is within DDRAM */ mtdcr(uic1sr, 0xffffffff); /* clear all */ mtdcr(uic2sr, 0xffffffff); /* clear all */ mtdcr(uic2er, 0x00000000); /* disable all */ mtdcr(uic2cr, 0x00000000); /* all non-critical */ mtdcr(uic2pr, 0x27C00000); /* Adjustment of the polarity */ mtdcr(uic2tr, 0x3C000000); /* per ref-board manual */ mtdcr(uic2vr, 0x00000000); /* int31 highest, base=0x000 is within DDRAM */ mtdcr(uic2sr, 0xffffffff); /* clear all */ /* Trace Pins are disabled. SDR0_PFC0 Register */ mtsdr(SDR0_PFC0, 0x0); /* select Ethernet pins */ mfsdr(SDR0_PFC1, sdr0_pfc1); /* SMII via ZMII */ sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) | SDR0_PFC1_SELECT_CONFIG_6; mfsdr(SDR0_PFC2, sdr0_pfc2); sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) | SDR0_PFC2_SELECT_CONFIG_6; /* enable SPI (SCP) */ sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_SCP_SEL; mtsdr(SDR0_PFC2, sdr0_pfc2); mtsdr(SDR0_PFC1, sdr0_pfc1); mtsdr(SDR0_PFC4, 0x80000000); /* PCI arbiter disabled */ /* PCI Host Configuration disbaled */ mfsdr(sdr_pci0, reg); reg = 0; mtsdr(sdr_pci0, 0x00000000 | reg); gpio_write_bit(CFG_GPIO_FLASH_WP, 1); #if CONFIG_POST & CFG_POST_BSPEC1 gpio_write_bit(CFG_GPIO_HIGHSIDE, 1); reg = 0; /* reuse as counter */ out_be32((void *)CFG_DSPIC_TEST_ADDR, in_be32((void *)CFG_DSPIC_TEST_ADDR) & ~CFG_DSPIC_TEST_MASK); while (!gpio_read_in_bit(CFG_GPIO_DSPIC_READY) && reg++ < 1000) { udelay(1000); } gpio_write_bit(CFG_GPIO_HIGHSIDE, 0); if (gpio_read_in_bit(CFG_GPIO_DSPIC_READY)) { /* set "boot error" flag */ out_be32((void *)CFG_DSPIC_TEST_ADDR, in_be32((void *)CFG_DSPIC_TEST_ADDR) | CFG_DSPIC_TEST_MASK); } #endif /* * Reset PHY's: * The PHY's need a 2nd reset pulse, since the MDIO address is latched * upon reset, and with the first reset upon powerup, the addresses are * not latched reliable, since the IRQ line is multiplexed with an * MDIO address. A 2nd reset at this time will make sure, that the * correct address is latched. */ gpio_write_bit(CFG_GPIO_PHY0_RST, 1); gpio_write_bit(CFG_GPIO_PHY1_RST, 1); udelay(1000); gpio_write_bit(CFG_GPIO_PHY0_RST, 0); gpio_write_bit(CFG_GPIO_PHY1_RST, 0); udelay(1000); gpio_write_bit(CFG_GPIO_PHY0_RST, 1); gpio_write_bit(CFG_GPIO_PHY1_RST, 1); return 0; } /*---------------------------------------------------------------------------+ | misc_init_r. +---------------------------------------------------------------------------*/ int misc_init_r(void) { u32 pbcr; int size_val = 0; u32 reg; unsigned long usb2d0cr = 0; unsigned long usb2phy0cr, usb2h0cr = 0; unsigned long sdr0_pfc1; /* * FLASH stuff... */ /* Re-do sizing to get full correct info */ /* adjust flash start and offset */ gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize; gd->bd->bi_flashoffset = 0; mfebc(pb0cr, pbcr); switch (gd->bd->bi_flashsize) { case 1 << 20: size_val = 0; break; case 2 << 20: size_val = 1; break; case 4 << 20: size_val = 2; break; case 8 << 20: size_val = 3; break; case 16 << 20: size_val = 4; break; case 32 << 20: size_val = 5; break; case 64 << 20: size_val = 6; break; case 128 << 20: size_val = 7; break; } pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17); mtebc(pb0cr, pbcr); /* * Re-check to get correct base address */ flash_get_size(gd->bd->bi_flashstart, 0); /* Monitor protection ON by default */ (void)flash_protect(FLAG_PROTECT_SET, -CFG_MONITOR_LEN, 0xffffffff, &flash_info[1]); /* Env protection ON by default */ (void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR_REDUND, CFG_ENV_ADDR_REDUND + 2*CFG_ENV_SECT_SIZE - 1, &flash_info[1]); /* * USB suff... */ /* SDR Setting */ mfsdr(SDR0_PFC1, sdr0_pfc1); mfsdr(SDR0_USB0, usb2d0cr); mfsdr(SDR0_USB2PHY0CR, usb2phy0cr); mfsdr(SDR0_USB2H0CR, usb2h0cr); usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK; usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL; /*0*/ usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK; usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ; /*1*/ usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK; usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS; /*0*/ usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK; usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST; /*1*/ usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK; usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST; /*1*/ /* An 8-bit/60MHz interface is the only possible alternative when connecting the Device to the PHY */ usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK; usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_16BIT_30MHZ; /*1*/ mtsdr(SDR0_PFC1, sdr0_pfc1); mtsdr(SDR0_USB0, usb2d0cr); mtsdr(SDR0_USB2PHY0CR, usb2phy0cr); mtsdr(SDR0_USB2H0CR, usb2h0cr); /* * Clear resets */ udelay (1000); mtsdr(SDR0_SRST1, 0x00000000); udelay (1000); mtsdr(SDR0_SRST0, 0x00000000); printf("USB: Host(int phy) Device(ext phy)\n"); /* * Clear PLB4A0_ACR[WRP] * This fix will make the MAL burst disabling patch for the Linux * EMAC driver obsolete. */ reg = mfdcr(plb4_acr) & ~PLB4_ACR_WRP; mtdcr(plb4_acr, reg); /* * Init matrix keyboard */ misc_init_r_kbd(); return 0; } int checkboard(void) { char *s = getenv("serial#"); printf("Board: lwmon5"); if (s != NULL) { puts(", serial# "); puts(s); } putc('\n'); return (0); } #if defined(CFG_DRAM_TEST) int testdram(void) { unsigned long *mem = (unsigned long *)0; const unsigned long kend = (1024 / sizeof(unsigned long)); unsigned long k, n; mtmsr(0); for (k = 0; k < CFG_MBYTES_SDRAM; ++k, mem += (1024 / sizeof(unsigned long))) { if ((k & 1023) == 0) { printf("%3d MB\r", k / 1024); } memset(mem, 0xaaaaaaaa, 1024); for (n = 0; n < kend; ++n) { if (mem[n] != 0xaaaaaaaa) { printf("SDRAM test fails at: %08x\n", (uint) & mem[n]); return 1; } } memset(mem, 0x55555555, 1024); for (n = 0; n < kend; ++n) { if (mem[n] != 0x55555555) { printf("SDRAM test fails at: %08x\n", (uint) & mem[n]); return 1; } } } printf("SDRAM test passes\n"); return 0; } #endif /************************************************************************* * pci_pre_init * * This routine is called just prior to registering the hose and gives * the board the opportunity to check things. Returning a value of zero * indicates that things are bad & PCI initialization should be aborted. * * Different boards may wish to customize the pci controller structure * (add regions, override default access routines, etc) or perform * certain pre-initialization actions. * ************************************************************************/ #if defined(CONFIG_PCI) int pci_pre_init(struct pci_controller *hose) { unsigned long addr; /*-------------------------------------------------------------------------+ | Set priority for all PLB3 devices to 0. | Set PLB3 arbiter to fair mode. +-------------------------------------------------------------------------*/ mfsdr(sdr_amp1, addr); mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00); addr = mfdcr(plb3_acr); mtdcr(plb3_acr, addr | 0x80000000); /*-------------------------------------------------------------------------+ | Set priority for all PLB4 devices to 0. +-------------------------------------------------------------------------*/ mfsdr(sdr_amp0, addr); mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00); addr = mfdcr(plb4_acr) | 0xa0000000; /* Was 0x8---- */ mtdcr(plb4_acr, addr); /*-------------------------------------------------------------------------+ | Set Nebula PLB4 arbiter to fair mode. +-------------------------------------------------------------------------*/ /* Segment0 */ addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair; addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled; addr = (addr & ~plb0_acr_rdp_mask) | plb0_acr_rdp_4deep; addr = (addr & ~plb0_acr_wrp_mask) | plb0_acr_wrp_2deep; mtdcr(plb0_acr, addr); /* Segment1 */ addr = (mfdcr(plb1_acr) & ~plb1_acr_ppm_mask) | plb1_acr_ppm_fair; addr = (addr & ~plb1_acr_hbu_mask) | plb1_acr_hbu_enabled; addr = (addr & ~plb1_acr_rdp_mask) | plb1_acr_rdp_4deep; addr = (addr & ~plb1_acr_wrp_mask) | plb1_acr_wrp_2deep; mtdcr(plb1_acr, addr); return 1; } #endif /* defined(CONFIG_PCI) */ /************************************************************************* * pci_target_init * * The bootstrap configuration provides default settings for the pci * inbound map (PIM). But the bootstrap config choices are limited and * may not be sufficient for a given board. * ************************************************************************/ #if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) void pci_target_init(struct pci_controller *hose) { /*--------------------------------------------------------------------------+ * Set up Direct MMIO registers *--------------------------------------------------------------------------*/ /*--------------------------------------------------------------------------+ | PowerPC440EPX PCI Master configuration. | Map one 1Gig range of PLB/processor addresses to PCI memory space. | PLB address 0xA0000000-0xDFFFFFFF ==> PCI address 0xA0000000-0xDFFFFFFF | Use byte reversed out routines to handle endianess. | Make this region non-prefetchable. +--------------------------------------------------------------------------*/ out32r(PCIX0_PMM0MA, 0x00000000); /* PMM0 Mask/Attribute - disabled b4 setting */ out32r(PCIX0_PMM0LA, CFG_PCI_MEMBASE); /* PMM0 Local Address */ out32r(PCIX0_PMM0PCILA, CFG_PCI_MEMBASE); /* PMM0 PCI Low Address */ out32r(PCIX0_PMM0PCIHA, 0x00000000); /* PMM0 PCI High Address */ out32r(PCIX0_PMM0MA, 0xE0000001); /* 512M + No prefetching, and enable region */ out32r(PCIX0_PMM1MA, 0x00000000); /* PMM0 Mask/Attribute - disabled b4 setting */ out32r(PCIX0_PMM1LA, CFG_PCI_MEMBASE2); /* PMM0 Local Address */ out32r(PCIX0_PMM1PCILA, CFG_PCI_MEMBASE2); /* PMM0 PCI Low Address */ out32r(PCIX0_PMM1PCIHA, 0x00000000); /* PMM0 PCI High Address */ out32r(PCIX0_PMM1MA, 0xE0000001); /* 512M + No prefetching, and enable region */ out32r(PCIX0_PTM1MS, 0x00000001); /* Memory Size/Attribute */ out32r(PCIX0_PTM1LA, 0); /* Local Addr. Reg */ out32r(PCIX0_PTM2MS, 0); /* Memory Size/Attribute */ out32r(PCIX0_PTM2LA, 0); /* Local Addr. Reg */ /*--------------------------------------------------------------------------+ * Set up Configuration registers *--------------------------------------------------------------------------*/ /* Program the board's subsystem id/vendor id */ pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID, CFG_PCI_SUBSYS_VENDORID); pci_write_config_word(0, PCI_SUBSYSTEM_ID, CFG_PCI_SUBSYS_ID); /* Configure command register as bus master */ pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER); /* 240nS PCI clock */ pci_write_config_word(0, PCI_LATENCY_TIMER, 1); /* No error reporting */ pci_write_config_word(0, PCI_ERREN, 0); pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101); } #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */ /************************************************************************* * pci_master_init * ************************************************************************/ #if defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) void pci_master_init(struct pci_controller *hose) { unsigned short temp_short; /*--------------------------------------------------------------------------+ | Write the PowerPC440 EP PCI Configuration regs. | Enable PowerPC440 EP to be a master on the PCI bus (PMM). | Enable PowerPC440 EP to act as a PCI memory target (PTM). +--------------------------------------------------------------------------*/ pci_read_config_word(0, PCI_COMMAND, &temp_short); pci_write_config_word(0, PCI_COMMAND, temp_short | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); } #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) */ /************************************************************************* * is_pci_host * * This routine is called to determine if a pci scan should be * performed. With various hardware environments (especially cPCI and * PPMC) it's insufficient to depend on the state of the arbiter enable * bit in the strap register, or generic host/adapter assumptions. * * Rather than hard-code a bad assumption in the general 440 code, the * 440 pci code requires the board to decide at runtime. * * Return 0 for adapter mode, non-zero for host (monarch) mode. * * ************************************************************************/ #if defined(CONFIG_PCI) int is_pci_host(struct pci_controller *hose) { /* Cactus is always configured as host. */ return (1); } #endif /* defined(CONFIG_PCI) */ void hw_watchdog_reset(void) { int val; /* * Toggle watchdog output */ val = gpio_read_out_bit(CFG_GPIO_WATCHDOG) == 0 ? 1 : 0; gpio_write_bit(CFG_GPIO_WATCHDOG, val); } int do_eeprom_wp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { if (argc < 2) { printf("Usage:\n%s\n", cmdtp->usage); return 1; } if ((strcmp(argv[1], "on") == 0)) { gpio_write_bit(CFG_GPIO_EEPROM_EXT_WP, 1); } else if ((strcmp(argv[1], "off") == 0)) { gpio_write_bit(CFG_GPIO_EEPROM_EXT_WP, 0); } else { printf("Usage:\n%s\n", cmdtp->usage); return 1; } return 0; } U_BOOT_CMD( eepromwp, 2, 0, do_eeprom_wp, "eepromwp- eeprom write protect off/on\n", "<on|off> - enable (on) or disable (off) I2C EEPROM write protect\n" ); #if defined(CONFIG_VIDEO) #include <video_fb.h> #include <mb862xx.h> extern GraphicDevice mb862xx; static const gdc_regs init_regs [] = { {0x0100, 0x00000f00}, {0x0020, 0x801401df}, {0x0024, 0x00000000}, {0x0028, 0x00000000}, {0x002c, 0x00000000}, {0x0110, 0x00000000}, {0x0114, 0x00000000}, {0x0118, 0x01df0280}, {0x0004, 0x031f0000}, {0x0008, 0x027f027f}, {0x000c, 0x015f028f}, {0x0010, 0x020c0000}, {0x0014, 0x01df01ea}, {0x0018, 0x00000000}, {0x001c, 0x01e00280}, {0x0100, 0x80010f00}, {0x0, 0x0} }; const gdc_regs *board_get_regs (void) { return init_regs; } /* Returns Lime base address */ unsigned int board_video_init (void) { /* * Reset Lime controller */ gpio_write_bit(CFG_GPIO_LIME_S, 1); udelay(500); gpio_write_bit(CFG_GPIO_LIME_RST, 1); /* Lime memory clock adjusted to 100MHz */ out_be32((void *)CFG_LIME_SDRAM_CLOCK, CFG_LIME_CLOCK_100MHZ); /* Wait untill time expired. Because of requirements in lime manual */ udelay(300); /* Write lime controller memory parameters */ out_be32((void *)CFG_LIME_MMR, CFG_LIME_MMR_VALUE); mb862xx.winSizeX = 640; mb862xx.winSizeY = 480; mb862xx.gdfBytesPP = 2; mb862xx.gdfIndex = GDF_15BIT_555RGB; return CFG_LIME_BASE_0; } #define DEFAULT_BRIGHTNESS 0x64 static void board_backlight_brightness(int brightness) { if (brightness > 0) { /* pwm duty, lamp on */ out_be32((void *)(CFG_FPGA_BASE_0 + 0x00000024), brightness); out_be32((void *)(CFG_FPGA_BASE_0 + 0x00000020), 0x701); } else { /* lamp off */ out_be32((void *)(CFG_FPGA_BASE_0 + 0x00000024), 0x00); out_be32((void *)(CFG_FPGA_BASE_0 + 0x00000020), 0x00); } } void board_backlight_switch (int flag) { char * param; int rc; if (flag) { param = getenv("brightness"); rc = param ? simple_strtol(param, NULL, 10) : -1; if (rc < 0) rc = DEFAULT_BRIGHTNESS; } else { rc = 0; } board_backlight_brightness(rc); } #if defined(CONFIG_CONSOLE_EXTRA_INFO) /* * Return text to be printed besides the logo. */ void video_get_info_str (int line_number, char *info) { if (line_number == 1) { strcpy (info, " Board: Lwmon5 (Liebherr Elektronik GmbH)"); } else { info [0] = '\0'; } } #endif #endif /* CONFIG_VIDEO */ void board_reset(void) { gpio_write_bit(CFG_GPIO_BOARD_RESET, 1); }