--- /dev/null
+/*
+ *(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) */
+
--- /dev/null
+/*
+ * (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);
+}
projects / u-boot / commitdiff