/* * Copyright 2007 Freescale Semiconductor. * * (C) Copyright 2002 Scott McNutt * * 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 #include #include #include #include #include #include #include "bcsr.h" const qe_iop_conf_t qe_iop_conf_tab[] = { /* GETH1 */ {4, 10, 1, 0, 2}, /* TxD0 */ {4, 9, 1, 0, 2}, /* TxD1 */ {4, 8, 1, 0, 2}, /* TxD2 */ {4, 7, 1, 0, 2}, /* TxD3 */ {4, 23, 1, 0, 2}, /* TxD4 */ {4, 22, 1, 0, 2}, /* TxD5 */ {4, 21, 1, 0, 2}, /* TxD6 */ {4, 20, 1, 0, 2}, /* TxD7 */ {4, 15, 2, 0, 2}, /* RxD0 */ {4, 14, 2, 0, 2}, /* RxD1 */ {4, 13, 2, 0, 2}, /* RxD2 */ {4, 12, 2, 0, 2}, /* RxD3 */ {4, 29, 2, 0, 2}, /* RxD4 */ {4, 28, 2, 0, 2}, /* RxD5 */ {4, 27, 2, 0, 2}, /* RxD6 */ {4, 26, 2, 0, 2}, /* RxD7 */ {4, 11, 1, 0, 2}, /* TX_EN */ {4, 24, 1, 0, 2}, /* TX_ER */ {4, 16, 2, 0, 2}, /* RX_DV */ {4, 30, 2, 0, 2}, /* RX_ER */ {4, 17, 2, 0, 2}, /* RX_CLK */ {4, 19, 1, 0, 2}, /* GTX_CLK */ {1, 31, 2, 0, 3}, /* GTX125 */ /* GETH2 */ {5, 10, 1, 0, 2}, /* TxD0 */ {5, 9, 1, 0, 2}, /* TxD1 */ {5, 8, 1, 0, 2}, /* TxD2 */ {5, 7, 1, 0, 2}, /* TxD3 */ {5, 23, 1, 0, 2}, /* TxD4 */ {5, 22, 1, 0, 2}, /* TxD5 */ {5, 21, 1, 0, 2}, /* TxD6 */ {5, 20, 1, 0, 2}, /* TxD7 */ {5, 15, 2, 0, 2}, /* RxD0 */ {5, 14, 2, 0, 2}, /* RxD1 */ {5, 13, 2, 0, 2}, /* RxD2 */ {5, 12, 2, 0, 2}, /* RxD3 */ {5, 29, 2, 0, 2}, /* RxD4 */ {5, 28, 2, 0, 2}, /* RxD5 */ {5, 27, 2, 0, 3}, /* RxD6 */ {5, 26, 2, 0, 2}, /* RxD7 */ {5, 11, 1, 0, 2}, /* TX_EN */ {5, 24, 1, 0, 2}, /* TX_ER */ {5, 16, 2, 0, 2}, /* RX_DV */ {5, 30, 2, 0, 2}, /* RX_ER */ {5, 17, 2, 0, 2}, /* RX_CLK */ {5, 19, 1, 0, 2}, /* GTX_CLK */ {1, 31, 2, 0, 3}, /* GTX125 */ {4, 6, 3, 0, 2}, /* MDIO */ {4, 5, 1, 0, 2}, /* MDC */ {0, 0, 0, 0, QE_IOP_TAB_END}, /* END of table */ }; #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) extern void ddr_enable_ecc(unsigned int dram_size); #endif extern long int spd_sdram(void); void local_bus_init(void); void sdram_init(void); int board_early_init_f (void) { /* * Initialize local bus. */ local_bus_init (); enable_8568mds_duart(); enable_8568mds_flash_write(); #if defined(CONFIG_QE) && !defined(CONFIG_eTSEC_MDIO_BUS) enable_8568mds_qe_mdio(); #endif #ifdef CFG_I2C2_OFFSET /* Enable I2C2_SCL and I2C2_SDA */ volatile struct par_io *port_c; port_c = (struct par_io*)(CFG_IMMR + 0xe0140); port_c->cpdir2 |= 0x0f000000; port_c->cppar2 &= ~0x0f000000; port_c->cppar2 |= 0x0a000000; #endif return 0; } int checkboard (void) { printf ("Board: 8568 MDS\n"); return 0; } long int initdram(int board_type) { long dram_size = 0; volatile immap_t *immap = (immap_t *)CFG_IMMR; puts("Initializing\n"); #if defined(CONFIG_DDR_DLL) { /* * Work around to stabilize DDR DLL MSYNC_IN. * Errata DDR9 seems to have been fixed. * This is now the workaround for Errata DDR11: * Override DLL = 1, Course Adj = 1, Tap Select = 0 */ volatile ccsr_gur_t *gur= &immap->im_gur; gur->ddrdllcr = 0x81000000; asm("sync;isync;msync"); udelay(200); } #endif dram_size = spd_sdram(); #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) /* * Initialize and enable DDR ECC. */ ddr_enable_ecc(dram_size); #endif /* * SDRAM Initialization */ sdram_init(); puts(" DDR: "); return dram_size; } /* * Initialize Local Bus */ void local_bus_init(void) { volatile immap_t *immap = (immap_t *)CFG_IMMR; volatile ccsr_gur_t *gur = &immap->im_gur; volatile ccsr_lbc_t *lbc = &immap->im_lbc; uint clkdiv; uint lbc_hz; sys_info_t sysinfo; get_sys_info(&sysinfo); clkdiv = (lbc->lcrr & 0x0f) * 2; lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv; gur->lbiuiplldcr1 = 0x00078080; if (clkdiv == 16) { gur->lbiuiplldcr0 = 0x7c0f1bf0; } else if (clkdiv == 8) { gur->lbiuiplldcr0 = 0x6c0f1bf0; } else if (clkdiv == 4) { gur->lbiuiplldcr0 = 0x5c0f1bf0; } lbc->lcrr |= 0x00030000; asm("sync;isync;msync"); } /* * Initialize SDRAM memory on the Local Bus. */ void sdram_init(void) { #if defined(CFG_OR2_PRELIM) && defined(CFG_BR2_PRELIM) uint idx; volatile immap_t *immap = (immap_t *)CFG_IMMR; volatile ccsr_lbc_t *lbc = &immap->im_lbc; uint *sdram_addr = (uint *)CFG_LBC_SDRAM_BASE; uint lsdmr_common; puts(" SDRAM: "); print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n"); /* * Setup SDRAM Base and Option Registers */ lbc->or2 = CFG_OR2_PRELIM; asm("msync"); lbc->br2 = CFG_BR2_PRELIM; asm("msync"); lbc->lbcr = CFG_LBC_LBCR; asm("msync"); lbc->lsrt = CFG_LBC_LSRT; lbc->mrtpr = CFG_LBC_MRTPR; asm("msync"); /* * MPC8568 uses "new" 15-16 style addressing. */ lsdmr_common = CFG_LBC_LSDMR_COMMON; lsdmr_common |= CFG_LBC_LSDMR_BSMA1516; /* * Issue PRECHARGE ALL command. */ lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_PCHALL; asm("sync;msync"); *sdram_addr = 0xff; ppcDcbf((unsigned long) sdram_addr); udelay(100); /* * Issue 8 AUTO REFRESH commands. */ for (idx = 0; idx < 8; idx++) { lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_ARFRSH; asm("sync;msync"); *sdram_addr = 0xff; ppcDcbf((unsigned long) sdram_addr); udelay(100); } /* * Issue 8 MODE-set command. */ lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_MRW; asm("sync;msync"); *sdram_addr = 0xff; ppcDcbf((unsigned long) sdram_addr); udelay(100); /* * Issue NORMAL OP command. */ lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_NORMAL; asm("sync;msync"); *sdram_addr = 0xff; ppcDcbf((unsigned long) sdram_addr); udelay(200); /* Overkill. Must wait > 200 bus cycles */ #endif /* enable SDRAM init */ } #if defined(CFG_DRAM_TEST) int testdram(void) { uint *pstart = (uint *) CFG_MEMTEST_START; uint *pend = (uint *) CFG_MEMTEST_END; uint *p; printf("Testing DRAM from 0x%08x to 0x%08x\n", CFG_MEMTEST_START, CFG_MEMTEST_END); printf("DRAM test phase 1:\n"); for (p = pstart; p < pend; p++) *p = 0xaaaaaaaa; for (p = pstart; p < pend; p++) { if (*p != 0xaaaaaaaa) { printf ("DRAM test fails at: %08x\n", (uint) p); return 1; } } printf("DRAM test phase 2:\n"); for (p = pstart; p < pend; p++) *p = 0x55555555; for (p = pstart; p < pend; p++) { if (*p != 0x55555555) { printf ("DRAM test fails at: %08x\n", (uint) p); return 1; } } printf("DRAM test passed.\n"); return 0; } #endif #if defined(CONFIG_PCI) #ifndef CONFIG_PCI_PNP static struct pci_config_table pci_mpc8568mds_config_table[] = { { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, pci_cfgfunc_config_device, {PCI_ENET0_IOADDR, PCI_ENET0_MEMADDR, PCI_COMMON_MEMORY | PCI_COMMAND_MASTER} }, {} }; #endif static struct pci_controller hose[] = { { #ifndef CONFIG_PCI_PNP config_table: pci_mpc8568mds_config_table, #endif } }; #endif /* CONFIG_PCI */ /* * pib_init() -- Initialize the PCA9555 IO expander on the PIB board */ void pib_init(void) { u8 val8, orig_i2c_bus; /* * Assign PIB PMC2/3 to PCI bus */ /*switch temporarily to I2C bus #2 */ orig_i2c_bus = i2c_get_bus_num(); i2c_set_bus_num(1); val8 = 0x00; i2c_write(0x23, 0x6, 1, &val8, 1); i2c_write(0x23, 0x7, 1, &val8, 1); val8 = 0xff; i2c_write(0x23, 0x2, 1, &val8, 1); i2c_write(0x23, 0x3, 1, &val8, 1); val8 = 0x00; i2c_write(0x26, 0x6, 1, &val8, 1); val8 = 0x34; i2c_write(0x26, 0x7, 1, &val8, 1); val8 = 0xf9; i2c_write(0x26, 0x2, 1, &val8, 1); val8 = 0xff; i2c_write(0x26, 0x3, 1, &val8, 1); val8 = 0x00; i2c_write(0x27, 0x6, 1, &val8, 1); i2c_write(0x27, 0x7, 1, &val8, 1); val8 = 0xff; i2c_write(0x27, 0x2, 1, &val8, 1); val8 = 0xef; i2c_write(0x27, 0x3, 1, &val8, 1); asm("eieio"); } void pci_init_board(void) { #ifdef CONFIG_PCI pib_init(); pci_mpc85xx_init(hose); #endif }