Signed-off-by: Niklaus Giger niklaus.giger@netstal.com --- board/netstal/hcu5/hcu5.c | 526 ++++++++++++++++++++++++++++++++++++++++++++ board/netstal/hcu5/init.S | 81 +++++++ board/netstal/hcu5/sdram.c | 299 +++++++++++++++++++++++++ 3 files changed, 906 insertions(+), 0 deletions(-) create mode 100644 board/netstal/hcu5/hcu5.c create mode 100644 board/netstal/hcu5/init.S create mode 100644 board/netstal/hcu5/sdram.c
diff --git a/board/netstal/hcu5/hcu5.c b/board/netstal/hcu5/hcu5.c new file mode 100644 index 0000000..59107b9 --- /dev/null +++ b/board/netstal/hcu5/hcu5.c @@ -0,0 +1,526 @@ +/* + *(C) Copyright 2005-2007 Netstal Maschinen AG + * Niklaus Giger (Niklaus.Giger@netstal.com) + * + * This source code is free software; you can redistribute it + * and/or modify it in source code form 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 <asm/processor.h> +#include <ppc440.h> +#include <asm/mmu.h> + +DECLARE_GLOBAL_DATA_PTR; + +void sysLedSet(u32 value); + +extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; + +#define mtcpr0(reg, data) do { mtdcr(CPR0_CFGADDR,reg); \ + mtdcr(CPR0_CFGDATA,data); } while (0) +#define mfcpr0(reg, data) do { mtdcr(CPR0_CFGADDR,reg); \ + data = mfdcr(CPR0_CFGDATA); } while (0) + +#define SDR0_CP440 0x0180 + +/* + * This function is run very early, out of flash, and before devices are + * initialized. It is called by lib_ppc/board.c:board_init_f by virtue + * of being in the init_sequence array. + * + * The SDRAM has been initialized already -- start.S:start called + * init.S:init_sdram early on -- but it is not yet being used for + * anything, not even stack. So be careful. + */ + +int board_early_init_f(void) +{ + u32 reg; + +#undef BOOTSTRAP_OPTION_A_ACTIVE +#ifdef BOOTSTRAP_OPTION_A_ACTIVE + /* Booting with Bootstrap Option A + * First boot, with CPR0_ICFG_RLI_MASK == 0 + * no we setup varios boot strapping register, + * then we do reset the PPC440 using a chip reset + * Unfortunately, we cannot use this option, as Nto1 is not set + * with Bootstrap Option A and cannot be changed later on by SW + * There are no other possible boostrap options with a 8 bit ROM + * See Errata (Version 1.04) CHIP_9 + */ + + u32 cpr0icfg; + u32 dbcr; + mfcpr0(CPR0_ICFG, cpr0icfg); + if ( ! (cpr0icfg & CPR0_ICFG_RLI_MASK ) ) { + mtcpr0(CPR0_MALD, 0x02000000); + mtcpr0(CPR0_OPBD, 0x02000000); + mtcpr0(CPR0_PERD, 0x05000000); /* 1:5 */ + mtcpr0(CPR0_PLLC, 0x40000238); + mtcpr0(CPR0_PLLD, 0x01010414); + mtcpr0(CPR0_PRIMAD, 0x01000000); + mtcpr0(CPR0_PRIMBD, 0x01000000); + mtcpr0(CPR0_SPCID, 0x03000000); + mtsdr(SDR0_PFC0, 0x00003E00); /* [CTE] = 0 */ + mtsdr(SDR0_CP440, 0x0EAAEA02); /* [Nto1] = 1*/ + mtcpr0(CPR0_ICFG, cpr0icfg | CPR0_ICFG_RLI_MASK); + + /* + * Initiate system reset in debug control register DBCR + */ + dbcr = mfspr(dbcr0); + #define SYSTEM_RESET 0x30000000 + #define CHIP_RESET 0x20000000 + mtspr(dbcr0, dbcr | CHIP_RESET ); + } + mtsdr(SDR0_CP440, 0x0EAAEA02); /* [Nto1] = 1*/ +#endif + mtdcr(ebccfga, xbcfg); + mtdcr(ebccfgd, 0xb8400000); + + /*-------------------------------------------------------------------- + * Setup the GPIO pins + *-------------------------------------------------------------------*/ + /* test-only: take GPIO init from pcs440ep ???? in config file */ + out32(GPIO0_OR, 0x00000000); + out32(GPIO0_TCR, 0x7C2FF1CF); + out32(GPIO0_OSRL, 0x40055000); + out32(GPIO0_OSRH, 0x00000000); + out32(GPIO0_TSRL, 0x40055000); + out32(GPIO0_TSRH, 0x00000400); + out32(GPIO0_ISR1L, 0x40000000); + out32(GPIO0_ISR1H, 0x00000000); + out32(GPIO0_ISR2L, 0x00000000); + out32(GPIO0_ISR2H, 0x00000000); + out32(GPIO0_ISR3L, 0x00000000); + out32(GPIO0_ISR3H, 0x00000000); + + out32(GPIO1_OR, 0x00000000); + out32(GPIO1_TCR, 0xC6007FFF); + out32(GPIO1_OSRL, 0x00140000); + out32(GPIO1_OSRH, 0x00000000); + out32(GPIO1_TSRL, 0x00000000); + out32(GPIO1_TSRH, 0x00000000); + out32(GPIO1_ISR1L, 0x05415555); + out32(GPIO1_ISR1H, 0x40000000); + out32(GPIO1_ISR2L, 0x00000000); + out32(GPIO1_ISR2H, 0x00000000); + out32(GPIO1_ISR3L, 0x00000000); + out32(GPIO1_ISR3H, 0x00000000); + + /*-------------------------------------------------------------------- + * Setup the interrupt controller polarities, triggers, etc. + *-------------------------------------------------------------------*/ + mtdcr(uic0sr, 0xffffffff); /* clear all */ + mtdcr(uic0er, 0x00000000); /* disable all */ + mtdcr(uic0cr, 0x00000005); /* ATI & UIC1 crit are critical */ + mtdcr(uic0pr, 0xfffff7ff); /* per ref-board manual */ + mtdcr(uic0tr, 0x00000000); /* per ref-board manual */ + mtdcr(uic0vr, 0x00000000); /* int31 highest, base=0x000 */ + mtdcr(uic0sr, 0xffffffff); /* clear all */ + + mtdcr(uic1sr, 0xffffffff); /* clear all */ + mtdcr(uic1er, 0x00000000); /* disable all */ + mtdcr(uic1cr, 0x00000000); /* all non-critical */ + mtdcr(uic1pr, 0xffffffff); /* per ref-board manual */ + mtdcr(uic1tr, 0x00000000); /* per ref-board manual */ + mtdcr(uic1vr, 0x00000000); /* int31 highest, base=0x000 */ + mtdcr(uic1sr, 0xffffffff); /* clear all */ + + mtdcr(uic2sr, 0xffffffff); /* clear all */ + mtdcr(uic2er, 0x00000000); /* disable all */ + mtdcr(uic2cr, 0x00000000); /* all non-critical */ + mtdcr(uic2pr, 0xffffffff); /* per ref-board manual */ + mtdcr(uic2tr, 0x00000000); /* per ref-board manual */ + mtdcr(uic2vr, 0x00000000); /* int31 highest, base=0x000 */ + mtdcr(uic2sr, 0xffffffff); /* clear all */ + mtsdr(sdr_pfc0, 0x00003E00); /* Pin function: */ + mtsdr(sdr_pfc1, 0x00848000); /* Pin function: UART0 has 4 pins */ + + /* PCI arbiter enabled */ + mfsdr(sdr_pci0, reg); + mtsdr(sdr_pci0, 0x80000000 | reg); + + pci_pre_init(0); + + /* setup BOOT FLASH */ + mtsdr(SDR0_CUST0, 0xC0082350); + + return 0; +} + +#ifdef CONFIG_BOARD_PRE_INIT +int board_pre_init (void) +{ + return board_early_init_f (); +} + +#endif + +enum { + /* HW_GENERATION_HCU1 is no longer supported */ + HW_GENERATION_HCU2 = 0x10, + HW_GENERATION_HCU3 = 0x10, + HW_GENERATION_HCU4 = 0x20, + HW_GENERATION_HCU5 = 0x30, + HW_GENERATION_MCU = 0x08, + HW_GENERATION_MCU20 = 0x0a, + HW_GENERATION_MCU25 = 0x09, +}; + +int checkboard (void) +{ +#define SDR0_ECID0 0x0080 +#define SDR0_ECID1 0x0081 +#define SDR0_ECID2 0x0082 +#define SDR0_ECID3 0x0083 + unsigned j; + uint16_t *hwVersReg = (uint16_t *) HCU_HW_VERSION_REGISTER; + uint16_t *boardVersReg = (uint16_t *) HCU_CPLD_VERSION_REGISTER; + uint16_t generation = *boardVersReg & 0xf0; + uint16_t index = *boardVersReg & 0x0f; + ulong ecid0, ecid1, ecid2, ecid3; + printf ("Netstal Maschinen AG: "); + if (generation == HW_GENERATION_HCU3) + printf ("HCU3: index %d", index); + else if (generation == HW_GENERATION_HCU4) + printf ("HCU4: index %d", index); + else if (generation == HW_GENERATION_HCU5) + printf ("HCU5: index %d", index); + printf (" HW 0x%02x\n", *hwVersReg & 0xff); + mfsdr(SDR0_ECID0, ecid0); + mfsdr(SDR0_ECID1, ecid1); + mfsdr(SDR0_ECID2, ecid2); + mfsdr(SDR0_ECID3, ecid3); + + printf("Chip ID 0x%x 0x%x 0x%x 0x%x\n", ecid0, ecid1, ecid2, ecid3); + for (j=0; j < 6;j++) { + sysLedSet(1 << j); + udelay(200*1000); + } + return 0; +} + +#define SYS_IO_ADDRESS 0xcce00000 + +u32 sysLedGet(void) +{ + return in16(SYS_IO_ADDRESS) & 0x3f; +} + +void sysLedSet(u32 value /* value to place in LEDs */) +{ + out16(SYS_IO_ADDRESS, value); +} + +/*---------------------------------------------------------------------------+ + * getSerialNr + *---------------------------------------------------------------------------*/ +static u32 getSerialNr(void) +{ + u32 *serial = (u32 *)CFG_FLASH_BASE; + if (*serial == 0xffffffff) { + return get_ticks(); + } + return *serial; +} + + +/*---------------------------------------------------------------------------+ + * misc_init_r. + *---------------------------------------------------------------------------*/ + +#define DEFAULT_ETH_ADDR "ethaddr" +/* ethaddr for first or etha1ddr for second ethernet */ + +int misc_init_r(void) +{ + char *s = getenv(DEFAULT_ETH_ADDR); + char *e; + int i; + u32 serial = getSerialNr(); + unsigned long usb2d0cr = 0; + unsigned long usb2phy0cr, usb2h0cr = 0; + unsigned long sdr0_pfc1; + + for (i = 0; i < 6; ++i) { + gd->bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0; + if (s) + s = (*e) ? e + 1 : e; + } + if (gd->bd->bi_enetaddr[3] == 0 && + gd->bd->bi_enetaddr[4] == 0 && + gd->bd->bi_enetaddr[5] == 0) { + char ethaddr[22]; + /* Must be in sync with CONFIG_ETHADDR */ + gd->bd->bi_enetaddr[0] = 0x00; + gd->bd->bi_enetaddr[1] = 0x60; + gd->bd->bi_enetaddr[2] = 0x13; + gd->bd->bi_enetaddr[3] = (serial >> 16) & 0xff; + gd->bd->bi_enetaddr[4] = (serial >> 8) & 0xff; + /* byte[5].bit 0 must be zero */ + gd->bd->bi_enetaddr[5] = (serial >> 0) & 0xfe; + sprintf (ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X\0", + gd->bd->bi_enetaddr[0], gd->bd->bi_enetaddr[1], + gd->bd->bi_enetaddr[2], gd->bd->bi_enetaddr[3], + gd->bd->bi_enetaddr[4], gd->bd->bi_enetaddr[5]) ; + printf("%s: Setting eth %s serial 0x%x\n", __FUNCTION__, + ethaddr, serial); + setenv (DEFAULT_ETH_ADDR, ethaddr); + } +#ifdef CFG_ENV_IS_IN_FLASH + /* Monitor protection ON by default */ + (void)flash_protect(FLAG_PROTECT_SET, + -CFG_MONITOR_LEN, + 0xffffffff, + &flash_info[0]); + + /* 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[0]); +#endif + + /* + * USB stuff... + */ + + /* SDR Setting */ + mfsdr(SDR0_PFC1, sdr0_pfc1); + mfsdr(SDR0_USB2D0CR, 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*/ + + /* To enable the USB 2.0 Device function through the UTMI interface */ + usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK; + usb2d0cr = usb2d0cr | SDR0_USB2D0CR_USB2DEV_SELECTION; /*1*/ + + sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK; + sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_USB2D_SEL; /*0*/ + + mtsdr(SDR0_PFC1, sdr0_pfc1); + mtsdr(SDR0_USB2D0CR, 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"); + + return 0; +} + +/************************************************************************* + * 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) && defined(CFG_PCI_PRE_INIT) +int pci_pre_init(struct pci_controller *hose) +{ + unsigned long addr; + + /*-------------------------------------------------------------------+ + * As of errata version 0.4, CHIP_8: Incorrect Write to DDR SDRAM. + * Workaround: Disable write pipelining to DDR SDRAM by setting + * PLB0_ACR[WRP] = 0. + *-------------------------------------------------------------------*/ + + /*-------------------------------------------------------------------+ + | 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 & ~plb1_acr_wrp_mask); /* ngngng */ + mtdcr(plb3_acr, addr | 0x80000000); /* Sequoia */ + + /*-------------------------------------------------------------------+ + | 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 & ~plb1_acr_wrp_mask); /* ngngng */ + mtdcr(plb4_acr, addr); /* Sequoia */ + + /*-------------------------------------------------------------------+ + | 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) ; /* ngngng */ + addr = (addr & ~plb0_acr_wrp_mask) | plb0_acr_wrp_2deep; /* Sequoia */ + + // mtdcr(plb0_acr, addr); /* Sequoia */ + mtdcr(plb0_acr, 0); // PATCH HAB: WRITE PIPELINING OFF + + + /* 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) ; + // mtdcr(plb1_acr, addr); /* Sequoia */ + mtdcr(plb1_acr, 0); // PATCH HAB: WRITE PIPELINING OFF + + return 1; +} +#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) */ + +/************************************************************************* + * 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. + +-------------------------------------------------------------*/ + /* PMM0 Mask/Attribute - disabled b4 setting */ + out32r(PCIX0_PMM0MA, 0x00000000); + out32r(PCIX0_PMM0LA, CFG_PCI_MEMBASE); /* PMM0 Local Address */ + /* PMM0 PCI Low Address */ + out32r(PCIX0_PMM0PCILA, CFG_PCI_MEMBASE); + out32r(PCIX0_PMM0PCIHA, 0x00000000); /* PMM0 PCI High Address */ + /* 512M + No prefetching, and enable region */ + out32r(PCIX0_PMM0MA, 0xE0000001); + + /* PMM0 Mask/Attribute - disabled b4 setting */ + out32r(PCIX0_PMM1MA, 0x00000000); + out32r(PCIX0_PMM1LA, CFG_PCI_MEMBASE2); /* PMM0 Local Address */ + /* PMM0 PCI Low Address */ + out32r(PCIX0_PMM1PCILA, CFG_PCI_MEMBASE2); + out32r(PCIX0_PMM1PCIHA, 0x00000000); /* PMM0 PCI High Address */ + /* 512M + No prefetching, and enable region */ + out32r(PCIX0_PMM1MA, 0xE0000001); + + 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) +{ + return 1; +} +#endif /* defined(CONFIG_PCI) */ + diff --git a/board/netstal/hcu5/init.S b/board/netstal/hcu5/init.S new file mode 100644 index 0000000..6da5f22 --- /dev/null +++ b/board/netstal/hcu5/init.S @@ -0,0 +1,81 @@ +/* + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 <ppc_asm.tmpl> +#include <config.h> +#include <asm/mmu.h> + +/************************************************************************** + * TLB TABLE + * + * This table is used by the cpu boot code to setup the initial tlb + * entries. Rather than make broad assumptions in the cpu source tree, + * this table lets each board set things up however they like. + * + * Pointer to the table is returned in r1 + * + *************************************************************************/ + .section .bootpg,"ax" + .globl tlbtab + +tlbtab: + tlbtab_start + + /* vxWorks needs this entry for the Machine Check interrupt, */ + /* tlbentry( 0x40000000, SZ_256M, 0, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) */ + + /* + * BOOT_CS (FLASH) must be second. Before relocation SA_I can be off to use the + * speed up boot process. It is patched after relocation to enable SA_I + */ + tlbentry( CFG_BOOT_BASE_ADDR, SZ_1M, CFG_BOOT_BASE_ADDR, 1, AC_R|AC_W|AC_X|SA_G ) + + /* TLB-entry for PCI Memory */ + tlbentry( CFG_PCI_MEMBASE, SZ_256M, CFG_PCI_MEMBASE, 1, AC_R|AC_W|SA_G|SA_I ) + tlbentry( CFG_PCI_MEMBASE1, SZ_256M, CFG_PCI_MEMBASE1, 1, AC_R|AC_W|SA_G|SA_I ) + tlbentry( CFG_PCI_MEMBASE2, SZ_256M, CFG_PCI_MEMBASE2, 1, AC_R|AC_W|SA_G|SA_I ) + tlbentry( CFG_PCI_MEMBASE3, SZ_256M, CFG_PCI_MEMBASE3, 1, AC_R|AC_W|SA_G|SA_I ) + + /* TLB-entry for EBC (CFG_CPLD) */ + // tlbentry( CFG_CPLD, SZ_1K, CFG_CPLD, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) + /* CAN */ + tlbentry( CFG_CS_1, SZ_16M, CFG_CS_1, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) + /* IMC + CPLD */ + tlbentry( CFG_CS_2, SZ_16M, CFG_CS_2, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) + tlbentry( CFG_CS_2 + 0x1000000, SZ_16M, CFG_CS_2 + 0x1000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) + /* IMC-Fast */ + tlbentry( CFG_CS_3, SZ_16M, CFG_CS_3, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) + tlbentry( CFG_CS_3 + 0x1000000, SZ_16M, CFG_CS_3 + 0x1000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) + + /* TLB-entry for Internal Registers & OCM */ + tlbentry( CFG_PCI_BASE, SZ_16M, 0xe0000000, 0, AC_R|AC_W|AC_X|SA_I ) + + /*TLB-entry PCI registers*/ + tlbentry( 0xEEC00000, SZ_1K, 0xEEC00000, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) + + /* TLB-entry for peripherals */ + tlbentry( 0xEF000000, SZ_16M, 0xEF000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I) + + /* TLB for SDRAM will be added by initdram (sdram.c) */ + + tlbtab_end + + diff --git a/board/netstal/hcu5/sdram.c b/board/netstal/hcu5/sdram.c new file mode 100644 index 0000000..f7d6865 --- /dev/null +++ b/board/netstal/hcu5/sdram.c @@ -0,0 +1,299 @@ +/* + * (C) Copyright 2007 + * Niklaus Giger (Niklaus.Giger@netstal.com) + * (C) Copyright 2006 + * Sylvie Gohl, AMCC/IBM, gohl.sylvie@fr.ibm.com + * Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com + * Thierry Roman, AMCC/IBM, thierry_roman@fr.ibm.com + * Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com + * Robert Snyder, AMCC/IBM, rob.snyder@fr.ibm.com + * + * (C) Copyright 2006 + * 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 + */ + +/* define DEBUG for debug output */ +#undef DEBUG + +#include <common.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/mmu.h> +#include <ppc440.h> + +void sysLedSet(u32 value); +void dcbz_area(u32 start_address, u32 num_bytes); +void dflush(void); + +#define DDR_DCR_BASE 0x10 +#define ddrcfga (DDR_DCR_BASE+0x0) /* DDR configuration address reg */ +#define ddrcfgd (DDR_DCR_BASE+0x1) /* DDR configuration data reg */ + +#define DDR0_01_INT_MASK_MASK 0x000000FF +#define DDR0_00_INT_ACK_ALL 0x7F000000 +#define DDR0_01_INT_MASK_ALL_ON 0x000000FF +#define DDR0_01_INT_MASK_ALL_OFF 0x00000000 + +#define DDR0_17_DLLLOCKREG_MASK 0x00010000 /* Read only */ +#define DDR0_17_DLLLOCKREG_UNLOCKED 0x00000000 +#define DDR0_17_DLLLOCKREG_LOCKED 0x00010000 + +#define DDR0_22 0x16 +/* ECC */ +#define DDR0_22_CTRL_RAW_MASK 0x03000000 +#define DDR0_22_CTRL_RAW_ECC_DISABLE 0x00000000 /* ECC not enabled */ +#define DDR0_22_CTRL_RAW_ECC_CHECK_ONLY 0x01000000 /* ECC no correction */ +#define DDR0_22_CTRL_RAW_NO_ECC_RAM 0x02000000 /* Not a ECC RAM*/ +#define DDR0_22_CTRL_RAW_ECC_ENABLE 0x03000000 /* ECC correcting on */ +#define DDR0_03_CASLAT_DECODE(n) ((((unsigned long)(n))>>16)&0x7) + +#ifdef CFG_ENABLE_SDRAM_CACHE +#define MY_TLB_WORD2_I_ENABLE 0 /* enable caching on DDR2 */ +#else +#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE /* disable caching on DDR2 */ +#endif + +void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value); + +#ifdef CONFIG_ADD_RAM_INFO +void board_add_ram_info(int use_default) +{ + PPC440_SYS_INFO board_cfg; + u32 val; + mfsdram(DDR0_22, val); + val &= DDR0_22_CTRL_RAW_MASK; + switch (val) { + case DDR0_22_CTRL_RAW_ECC_DISABLE: + puts(" (ECC disabled"); + break; + case DDR0_22_CTRL_RAW_ECC_CHECK_ONLY: + puts(" (ECC check only"); + break; + case DDR0_22_CTRL_RAW_NO_ECC_RAM: + puts(" (no ECC ram"); + break; + case DDR0_22_CTRL_RAW_ECC_ENABLE: + puts(" (ECC enabled"); + break; + } + + get_sys_info(&board_cfg); + printf(", %d MHz", (board_cfg.freqPLB * 2) / 1000000); + + mfsdram(DDR0_03, val); + val = DDR0_03_CASLAT_DECODE(val); + printf(", CL%d)", val); +} +#endif + +/*-------------------------------------------------------------------- + * wait_for_dlllock. + *--------------------------------------------------------------------*/ +static int wait_for_dlllock(void) +{ + unsigned long val; + int wait = 0; + + /* -----------------------------------------------------------+ + * Wait for the DCC master delay line to finish calibration + * ----------------------------------------------------------*/ + mtdcr(ddrcfga, DDR0_17); + val = DDR0_17_DLLLOCKREG_UNLOCKED; + + while (wait != 0xffff) { + val = mfdcr(ddrcfgd); + if ((val & DDR0_17_DLLLOCKREG_MASK) == + DDR0_17_DLLLOCKREG_LOCKED) + /* dlllockreg bit on */ + return 0; + else + wait++; + } + debug("0x%04x: DDR0_17 Value (dlllockreg bit): 0x%08x\n", wait, val); + debug("Waiting for dlllockreg bit to raise\n"); + + return -1; +} + +/*********************************************************************** + * + * sdram_panic -- Panic if we cannot configure the sdram correctly + * + ************************************************************************/ +void sdram_panic(const char *reason) +{ + printf("\n%s: reason %s", __FUNCTION__, reason); + sysLedSet(0xff); + while (1) { + } + /* Never return */ +} + +#ifdef CONFIG_DDR_ECC +static void blank_string(int size) +{ + int i; + + for (i=0; i<size; i++) + putc('\b'); + for (i=0; i<size; i++) + putc(' '); + for (i=0; i<size; i++) + putc('\b'); +} +/*---------------------------------------------------------------------------+ + * program_ecc. + *---------------------------------------------------------------------------*/ +static void program_ecc(unsigned long start_address, unsigned long num_bytes, + unsigned long tlb_word2_i_value) +{ + unsigned long current_address= start_address; + int loopi = 0; + u32 val; + + char str[] = "ECC generation -"; + char slash[] = "\|/-\|/-"; + + sync(); + eieio(); + + puts(str); + + if (tlb_word2_i_value == TLB_WORD2_I_ENABLE) { + /* ECC bit set method for non-cached memory */ + /* This takes various seconds */ + for(current_address = 0; current_address < num_bytes; + current_address += sizeof(u32)) { + *(u32 *)current_address = 0; + if ((current_address % (2 << 20)) == 0) { + putc('\b'); + putc(slash[loopi++ % 8]); + } + } + } else { + /* ECC bit set method for cached memory */ + /* Fast method, no noticeable delay */ + dcbz_area(start_address, num_bytes); + dflush(); + } + blank_string(strlen(str)); + + /* Clear error status */ + mfsdram(DDR0_00, val); + mtsdram(DDR0_00, val | DDR0_00_INT_ACK_ALL); + + /* Set 'int_mask' parameter to functionnal value */ + mfsdram(DDR0_01, val); + mtsdram(DDR0_01, ((val &~ DDR0_01_INT_MASK_MASK) | + DDR0_01_INT_MASK_ALL_OFF)); + + return; +} + +#endif + +/*********************************************************************** + * + * initdram -- 440EPx's DDR controller is a DENALI Core + * + ************************************************************************/ +long int initdram (int board_type) +{ +#define HCU_HW_SDRAM_CONFIG_MASK 0x7 +#define INVALID_HW_CONFIG "Invalid HW-Config" + uint16_t *hwVersReg = (uint16_t *) HCU_HW_VERSION_REGISTER; + unsigned int dram_size=0; + mtsdram(DDR0_02, 0x00000000); + + /* Values must be kept in sync with Excel-table <<A0001492.>> ! */ + mtsdram(DDR0_00, 0x0000190A); + mtsdram(DDR0_01, 0x01000000); + mtsdram(DDR0_03, 0x02030602); + mtsdram(DDR0_04, 0x0A020200); + mtsdram(DDR0_05, 0x02020307); + switch (*hwVersReg & HCU_HW_SDRAM_CONFIG_MASK) { + case 0: + dram_size = 128 * 1024 * 1024 ; + mtsdram(DDR0_06, 0x0102C80D); // 128MB RAM + mtsdram(DDR0_11, 0x000FC800); // 128MB RAM + mtsdram(DDR0_43, 0x030A0300); // 128MB RAM + break; + case 1: + dram_size = 256 * 1024 * 1024 ; + mtsdram(DDR0_06, 0x0102C812); // 256MB RAM + mtsdram(DDR0_11, 0x0014C800); // 256MB RAM + mtsdram(DDR0_43, 0x030A0200); // 256MB RAM + break; + default: + sdram_panic(INVALID_HW_CONFIG); + break; + } + dram_size -= 16 * 1024 * 1024; + mtsdram(DDR0_07, 0x00090100); + // TCPD=200 cycles of clock input is required to lock the DLL. + // CKE must be HIGH the entire time.mtsdram(DDR0_08, 0x02C80001); + mtsdram(DDR0_08, 0x02C80001); + mtsdram(DDR0_09, 0x00011D5F); + mtsdram(DDR0_10, 0x00000100); + mtsdram(DDR0_12, 0x00000003); + mtsdram(DDR0_14, 0x00000000); + mtsdram(DDR0_17, 0x1D000000); + mtsdram(DDR0_18, 0x1D1D1D1D); + mtsdram(DDR0_19, 0x1D1D1D1D); + mtsdram(DDR0_20, 0x0B0B0B0B); + mtsdram(DDR0_21, 0x0B0B0B0B); + #define ECC_RAM 0x03267F0B + #define NO_ECC_RAM 0x00267F0B +#ifdef CONFIG_DDR_ECC + mtsdram(DDR0_22, ECC_RAM); +#else + mtsdram(DDR0_22, NO_ECC_RAM); +#endif + + mtsdram(DDR0_23, 0x00000000); + mtsdram(DDR0_24, 0x01020001); + mtsdram(DDR0_26, 0x2D930517); + mtsdram(DDR0_27, 0x00008236); + mtsdram(DDR0_28, 0x00000000); + mtsdram(DDR0_31, 0x00000000); + mtsdram(DDR0_42, 0x01000006); + mtsdram(DDR0_44, 0x00000003); + mtsdram(DDR0_02, 0x00000001); + wait_for_dlllock(); + mtsdram(DDR0_00, 0x40000000); /* Zero init bit */ + + /* + * Program tlb entries for this size (dynamic) + */ + program_tlb(0, 0, dram_size, MY_TLB_WORD2_I_ENABLE); + + /* + * Setup 2nd TLB with same physical address but different virtual + * address with cache enabled. This is done for fast ECC generation. + */ + program_tlb(0, CFG_DDR_CACHED_ADDR, dram_size, 0); + +#ifdef CONFIG_DDR_ECC + /* + * If ECC is enabled, initialize the parity bits. + */ + program_ecc(CFG_DDR_CACHED_ADDR, dram_size, 0); +#endif + + return (dram_size); +}