/* * (C) Copyright 2007-2008 * Stefan Roese, DENX Software Engineering, sr@denx.de. * * 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 <common.h> #include <watchdog.h> #include <command.h> #include <asm/cache.h> #include <ppc4xx.h> #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) #include <libfdt.h> #include <libfdt_env.h> #include <fdt_support.h> #include <asm/4xx_pcie.h> DECLARE_GLOBAL_DATA_PTR; void __ft_board_setup(void *blob, bd_t *bd) { int rc; int i; u32 bxcr; u32 ranges[EBC_NUM_BANKS * 4]; u32 *p = ranges; char *ebc_path = "/plb/opb/ebc"; ft_cpu_setup(blob, bd); /* * Read 4xx EBC bus bridge registers to get mappings of the * peripheral banks into the OPB/PLB address space */ for (i = 0; i < EBC_NUM_BANKS; i++) { mtdcr(ebccfga, EBC_BXCR(i)); bxcr = mfdcr(ebccfgd); if ((bxcr & EBC_BXCR_BU_MASK) != EBC_BXCR_BU_NONE) { *p++ = i; *p++ = 0; *p++ = bxcr & EBC_BXCR_BAS_MASK; *p++ = EBC_BXCR_BANK_SIZE(bxcr); } } /* Some 405 PPC's have EBC as direct PLB child in the dts */ if (fdt_path_offset(blob, "/plb/opb/ebc") < 0) strcpy(ebc_path, "/plb/ebc"); rc = fdt_find_and_setprop(blob, ebc_path, "ranges", ranges, (p - ranges) * sizeof(u32), 1); if (rc) { printf("Unable to update property EBC mappings, err=%s\n", fdt_strerror(rc)); } } void ft_board_setup(void *blob, bd_t *bd) __attribute__((weak, alias("__ft_board_setup"))); /* * Fixup all PCIe nodes by setting the device_type property * to "pci-endpoint" instead is "pci" for endpoint ports. * This property will get checked later by the Linux driver * to properly configure the PCIe port in Linux (again). */ void fdt_pcie_setup(void *blob) { const char *compat = "ibm,plb-pciex"; const char *prop = "device_type"; const char *prop_val = "pci-endpoint"; const u32 *port; int no; int rc; /* Search first PCIe node */ no = fdt_node_offset_by_compatible(blob, -1, compat); while (no != -FDT_ERR_NOTFOUND) { port = fdt_getprop(blob, no, "port", NULL); if (port == NULL) { printf("WARNING: could not find port property\n"); } else { if (is_end_point(*port)) { rc = fdt_setprop(blob, no, prop, prop_val, strlen(prop_val) + 1); if (rc < 0) printf("WARNING: could not set %s for %s: %s.\n", prop, compat, fdt_strerror(rc)); } } /* Jump to next PCIe node */ no = fdt_node_offset_by_compatible(blob, no, compat); } } void ft_cpu_setup(void *blob, bd_t *bd) { sys_info_t sys_info; get_sys_info(&sys_info); do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, "timebase-frequency", bd->bi_intfreq, 1); do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, "clock-frequency", bd->bi_intfreq, 1); do_fixup_by_path_u32(blob, "/plb", "clock-frequency", sys_info.freqPLB, 1); do_fixup_by_path_u32(blob, "/plb/opb", "clock-frequency", sys_info.freqOPB, 1); if (fdt_path_offset(blob, "/plb/opb/ebc") >= 0) do_fixup_by_path_u32(blob, "/plb/opb/ebc", "clock-frequency", sys_info.freqEBC, 1); else do_fixup_by_path_u32(blob, "/plb/ebc", "clock-frequency", sys_info.freqEBC, 1); fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); /* * Setup all baudrates for the UARTs */ do_fixup_by_compat_u32(blob, "ns16550", "clock-frequency", gd->uart_clk, 1); /* * Fixup all ethernet nodes * Note: aliases in the dts are required for this */ fdt_fixup_ethernet(blob); /* * Fixup all available PCIe nodes by setting the device_type property */ fdt_pcie_setup(blob); } #endif /* CONFIG_OF_LIBFDT && CONFIG_OF_BOARD_SETUP */