mirror of
https://github.com/AsahiLinux/u-boot
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049f8d6f4a
This function related to timer and most of the timer functions are in time.h, so move this function there. Signed-off-by: Simon Glass <sjg@chromium.org>
379 lines
7.9 KiB
C
379 lines
7.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2007,2009-2014 Freescale Semiconductor, Inc.
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*/
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#include <common.h>
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#include <command.h>
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#include <cpu_func.h>
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#include <env.h>
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#include <init.h>
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#include <pci.h>
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#include <time.h>
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#include <asm/processor.h>
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#include <asm/mmu.h>
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#include <asm/fsl_pci.h>
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#include <asm/io.h>
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#include <linux/libfdt.h>
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#include <fdt_support.h>
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#include <netdev.h>
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#include <fdtdec.h>
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#include <errno.h>
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#include <malloc.h>
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DECLARE_GLOBAL_DATA_PTR;
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static void *get_fdt_virt(void)
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{
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return (void *)CONFIG_SYS_TMPVIRT;
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}
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static uint64_t get_fdt_phys(void)
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{
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return (uint64_t)(uintptr_t)gd->fdt_blob;
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}
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static void map_fdt_as(int esel)
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{
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u32 mas0, mas1, mas2, mas3, mas7;
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uint64_t fdt_phys = get_fdt_phys();
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unsigned long fdt_phys_tlb = fdt_phys & ~0xffffful;
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unsigned long fdt_virt_tlb = (ulong)get_fdt_virt() & ~0xffffful;
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mas0 = MAS0_TLBSEL(1) | MAS0_ESEL(esel);
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mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_1M);
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mas2 = FSL_BOOKE_MAS2(fdt_virt_tlb, 0);
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mas3 = FSL_BOOKE_MAS3(fdt_phys_tlb, 0, MAS3_SW|MAS3_SR);
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mas7 = FSL_BOOKE_MAS7(fdt_phys_tlb);
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write_tlb(mas0, mas1, mas2, mas3, mas7);
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}
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uint64_t get_phys_ccsrbar_addr_early(void)
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{
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void *fdt = get_fdt_virt();
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uint64_t r;
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int size, node;
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u32 naddr;
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const fdt32_t *prop;
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/*
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* To be able to read the FDT we need to create a temporary TLB
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* map for it.
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*/
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map_fdt_as(10);
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node = fdt_path_offset(fdt, "/soc");
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naddr = fdt_address_cells(fdt, node);
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prop = fdt_getprop(fdt, node, "ranges", &size);
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r = fdt_translate_address(fdt, node, prop + naddr);
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disable_tlb(10);
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return r;
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}
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int board_early_init_f(void)
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{
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return 0;
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}
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int checkboard(void)
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{
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return 0;
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}
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static int pci_map_region(void *fdt, int pci_node, int range_id,
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phys_size_t *ppaddr, pci_addr_t *pvaddr,
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pci_size_t *psize, ulong *pmap_addr)
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{
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uint64_t addr;
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uint64_t size;
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ulong map_addr;
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int r;
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r = fdt_read_range(fdt, pci_node, range_id, NULL, &addr, &size);
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if (r)
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return r;
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if (ppaddr)
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*ppaddr = addr;
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if (psize)
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*psize = size;
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if (!pmap_addr)
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return 0;
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map_addr = *pmap_addr;
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/* Align map_addr */
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map_addr += size - 1;
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map_addr &= ~(size - 1);
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if (map_addr + size >= CONFIG_SYS_PCI_MAP_END)
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return -1;
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/* Map virtual memory for range */
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assert(!tlb_map_range(map_addr, addr, size, TLB_MAP_IO));
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*pmap_addr = map_addr + size;
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if (pvaddr)
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*pvaddr = map_addr;
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return 0;
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}
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void pci_init_board(void)
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{
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struct pci_controller *pci_hoses;
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void *fdt = get_fdt_virt();
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int pci_node = -1;
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int pci_num = 0;
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int pci_count = 0;
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ulong map_addr;
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puts("\n");
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/* Start MMIO and PIO range maps above RAM */
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map_addr = CONFIG_SYS_PCI_MAP_START;
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/* Count and allocate PCI buses */
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pci_node = fdt_node_offset_by_prop_value(fdt, pci_node,
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"device_type", "pci", 4);
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while (pci_node != -FDT_ERR_NOTFOUND) {
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pci_node = fdt_node_offset_by_prop_value(fdt, pci_node,
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"device_type", "pci", 4);
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pci_count++;
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}
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if (pci_count) {
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pci_hoses = malloc(sizeof(struct pci_controller) * pci_count);
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} else {
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printf("PCI: disabled\n\n");
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return;
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}
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/* Spawn PCI buses based on device tree */
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pci_node = fdt_node_offset_by_prop_value(fdt, pci_node,
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"device_type", "pci", 4);
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while (pci_node != -FDT_ERR_NOTFOUND) {
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struct fsl_pci_info pci_info = { };
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const fdt32_t *reg;
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int r;
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reg = fdt_getprop(fdt, pci_node, "reg", NULL);
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pci_info.regs = fdt_translate_address(fdt, pci_node, reg);
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/* Map MMIO range */
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r = pci_map_region(fdt, pci_node, 0, &pci_info.mem_phys, NULL,
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&pci_info.mem_size, &map_addr);
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if (r)
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break;
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/* Map PIO range */
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r = pci_map_region(fdt, pci_node, 1, &pci_info.io_phys, NULL,
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&pci_info.io_size, &map_addr);
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if (r)
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break;
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/*
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* The PCI framework finds virtual addresses for the buses
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* through our address map, so tell it the physical addresses.
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*/
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pci_info.mem_bus = pci_info.mem_phys;
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pci_info.io_bus = pci_info.io_phys;
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/* Instantiate */
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pci_info.pci_num = pci_num + 1;
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fsl_setup_hose(&pci_hoses[pci_num], pci_info.regs);
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printf("PCI: base address %lx\n", pci_info.regs);
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fsl_pci_init_port(&pci_info, &pci_hoses[pci_num], pci_num);
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/* Jump to next PCI node */
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pci_node = fdt_node_offset_by_prop_value(fdt, pci_node,
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"device_type", "pci", 4);
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pci_num++;
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}
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puts("\n");
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}
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int last_stage_init(void)
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{
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void *fdt = get_fdt_virt();
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int len = 0;
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const uint64_t *prop;
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int chosen;
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chosen = fdt_path_offset(fdt, "/chosen");
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if (chosen < 0) {
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printf("Couldn't find /chosen node in fdt\n");
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return -EIO;
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}
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/* -kernel boot */
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prop = fdt_getprop(fdt, chosen, "qemu,boot-kernel", &len);
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if (prop && (len >= 8))
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env_set_hex("qemu_kernel_addr", *prop);
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/* Give the user a variable for the host fdt */
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env_set_hex("fdt_addr_r", (ulong)fdt);
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return 0;
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}
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static uint64_t get_linear_ram_size(void)
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{
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void *fdt = get_fdt_virt();
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const void *prop;
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int memory;
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int len;
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memory = fdt_path_offset(fdt, "/memory");
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prop = fdt_getprop(fdt, memory, "reg", &len);
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if (prop && len >= 16)
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return *(uint64_t *)(prop+8);
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panic("Couldn't determine RAM size");
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}
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int board_eth_init(bd_t *bis)
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{
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return pci_eth_init(bis);
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}
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#if defined(CONFIG_OF_BOARD_SETUP)
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int ft_board_setup(void *blob, bd_t *bd)
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{
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FT_FSL_PCI_SETUP;
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return 0;
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}
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#endif
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void print_laws(void)
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{
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/* We don't emulate LAWs yet */
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}
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phys_size_t fixed_sdram(void)
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{
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return get_linear_ram_size();
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}
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phys_size_t fsl_ddr_sdram_size(void)
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{
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return get_linear_ram_size();
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}
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void init_tlbs(void)
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{
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phys_size_t ram_size;
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/*
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* Create a temporary AS=1 map for the fdt
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*
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* We use ESEL=0 here to overwrite the previous AS=0 map for ourselves
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* which was only 4k big. This way we don't have to clear any other maps.
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*/
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map_fdt_as(0);
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/* Fetch RAM size from the fdt */
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ram_size = get_linear_ram_size();
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/* And remove our fdt map again */
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disable_tlb(0);
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/* Create an internal map of manually created TLB maps */
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init_used_tlb_cams();
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/* Create a dynamic AS=0 CCSRBAR mapping */
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assert(!tlb_map_range(CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
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1024 * 1024, TLB_MAP_IO));
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/* Create a RAM map that spans all accessible RAM */
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setup_ddr_tlbs(ram_size >> 20);
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/* Create a map for the TLB */
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assert(!tlb_map_range((ulong)get_fdt_virt(), get_fdt_phys(),
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1024 * 1024, TLB_MAP_RAM));
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}
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void init_laws(void)
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{
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/* We don't emulate LAWs yet */
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}
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static uint32_t get_cpu_freq(void)
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{
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void *fdt = get_fdt_virt();
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int cpus_node = fdt_path_offset(fdt, "/cpus");
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int cpu_node = fdt_first_subnode(fdt, cpus_node);
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const char *prop = "clock-frequency";
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return fdt_getprop_u32_default_node(fdt, cpu_node, 0, prop, 0);
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}
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void get_sys_info(sys_info_t *sys_info)
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{
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int freq = get_cpu_freq();
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memset(sys_info, 0, sizeof(sys_info_t));
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sys_info->freq_systembus = freq;
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sys_info->freq_ddrbus = freq;
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sys_info->freq_processor[0] = freq;
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}
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int get_clocks(void)
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{
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sys_info_t sys_info;
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get_sys_info(&sys_info);
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gd->cpu_clk = sys_info.freq_processor[0];
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gd->bus_clk = sys_info.freq_systembus;
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gd->mem_clk = sys_info.freq_ddrbus;
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gd->arch.lbc_clk = sys_info.freq_ddrbus;
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return 0;
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}
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unsigned long get_tbclk(void)
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{
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void *fdt = get_fdt_virt();
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int cpus_node = fdt_path_offset(fdt, "/cpus");
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int cpu_node = fdt_first_subnode(fdt, cpus_node);
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const char *prop = "timebase-frequency";
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return fdt_getprop_u32_default_node(fdt, cpu_node, 0, prop, 0);
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}
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/********************************************
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* get_bus_freq
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* return system bus freq in Hz
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*********************************************/
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ulong get_bus_freq(ulong dummy)
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{
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sys_info_t sys_info;
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get_sys_info(&sys_info);
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return sys_info.freq_systembus;
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}
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/*
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* Return the number of cores on this SOC.
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*/
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int cpu_numcores(void)
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{
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/*
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* The QEMU u-boot target only needs to drive the first core,
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* spinning and device tree nodes get driven by QEMU itself
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*/
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return 1;
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}
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/*
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* Return a 32-bit mask indicating which cores are present on this SOC.
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*/
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u32 cpu_mask(void)
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{
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return (1 << cpu_numcores()) - 1;
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}
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