| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Embedded Planet EP405 with PlanetCore firmware |
| * |
| * (c) Benjamin Herrenschmidt <benh@kernel.crashing.org>, IBM Corp,\ |
| * |
| * Based on ep88xc.c by |
| * |
| * Scott Wood <scottwood@freescale.com> |
| * |
| * Copyright (c) 2007 Freescale Semiconductor, Inc. |
| */ |
| |
| #include "ops.h" |
| #include "stdio.h" |
| #include "planetcore.h" |
| #include "dcr.h" |
| #include "4xx.h" |
| #include "io.h" |
| |
| static char *table; |
| static u64 mem_size; |
| |
| static void platform_fixups(void) |
| { |
| u64 val; |
| void *nvrtc; |
| |
| dt_fixup_memory(0, mem_size); |
| planetcore_set_mac_addrs(table); |
| |
| if (!planetcore_get_decimal(table, PLANETCORE_KEY_CRYSTAL_HZ, &val)) { |
| printf("No PlanetCore crystal frequency key.\r\n"); |
| return; |
| } |
| ibm405gp_fixup_clocks(val, 0xa8c000); |
| ibm4xx_quiesce_eth((u32 *)0xef600800, NULL); |
| ibm4xx_fixup_ebc_ranges("/plb/ebc"); |
| |
| if (!planetcore_get_decimal(table, PLANETCORE_KEY_KB_NVRAM, &val)) { |
| printf("No PlanetCore NVRAM size key.\r\n"); |
| return; |
| } |
| nvrtc = finddevice("/plb/ebc/nvrtc@4,200000"); |
| if (nvrtc != NULL) { |
| u32 reg[3] = { 4, 0x200000, 0}; |
| getprop(nvrtc, "reg", reg, 3); |
| reg[2] = (val << 10) & 0xffffffff; |
| setprop(nvrtc, "reg", reg, 3); |
| } |
| } |
| |
| void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, |
| unsigned long r6, unsigned long r7) |
| { |
| table = (char *)r3; |
| planetcore_prepare_table(table); |
| |
| if (!planetcore_get_decimal(table, PLANETCORE_KEY_MB_RAM, &mem_size)) |
| return; |
| |
| mem_size *= 1024 * 1024; |
| simple_alloc_init(_end, mem_size - (unsigned long)_end, 32, 64); |
| |
| fdt_init(_dtb_start); |
| |
| planetcore_set_stdout_path(table); |
| |
| serial_console_init(); |
| platform_ops.fixups = platform_fixups; |
| } |