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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 | /* * (C) Copyright 2007 * 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) #include <libfdt.h> #include <libfdt_env.h> #include <fdt_support.h> #include <asm/4xx_pcie.h> DECLARE_GLOBAL_DATA_PTR; /* * 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, bd); /* * Fixup all available PCIe nodes by setting the device_type property */ fdt_pcie_setup(blob); } #endif /* CONFIG_OF_LIBFDT */ |