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lib/fdtdec.c
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// SPDX-License-Identifier: GPL-2.0+ |
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/* * Copyright (c) 2011 The Chromium OS Authors. |
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*/ |
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#ifndef USE_HOSTCC |
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#include <common.h> |
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#include <boot_fit.h> |
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#include <dm.h> |
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#include <hang.h> |
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#include <init.h> |
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#include <malloc.h> |
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#include <dm/of_extra.h> |
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#include <env.h> |
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#include <errno.h> |
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#include <fdtdec.h> |
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#include <fdt_support.h> |
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#include <gzip.h> |
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#include <mapmem.h> |
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#include <linux/libfdt.h> |
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#include <serial.h> |
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#include <asm/sections.h> |
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#include <linux/ctype.h> |
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#include <linux/lzo.h> |
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DECLARE_GLOBAL_DATA_PTR; /* * Here are the type we know about. One day we might allow drivers to * register. For now we just put them here. The COMPAT macro allows us to * turn this into a sparse list later, and keeps the ID with the name. |
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* * NOTE: This list is basically a TODO list for things that need to be * converted to driver model. So don't add new things here unless there is a * good reason why driver-model conversion is infeasible. Examples include * things which are used before driver model is available. |
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*/ #define COMPAT(id, name) name static const char * const compat_names[COMPAT_COUNT] = { |
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COMPAT(UNKNOWN, "<none>"), |
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COMPAT(NVIDIA_TEGRA20_EMC, "nvidia,tegra20-emc"), COMPAT(NVIDIA_TEGRA20_EMC_TABLE, "nvidia,tegra20-emc-table"), |
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COMPAT(NVIDIA_TEGRA20_NAND, "nvidia,tegra20-nand"), |
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COMPAT(NVIDIA_TEGRA124_XUSB_PADCTL, "nvidia,tegra124-xusb-padctl"), |
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COMPAT(NVIDIA_TEGRA210_XUSB_PADCTL, "nvidia,tegra210-xusb-padctl"), |
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COMPAT(SMSC_LAN9215, "smsc,lan9215"), COMPAT(SAMSUNG_EXYNOS5_SROMC, "samsung,exynos-sromc"), |
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COMPAT(SAMSUNG_EXYNOS_USB_PHY, "samsung,exynos-usb-phy"), |
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COMPAT(SAMSUNG_EXYNOS5_USB3_PHY, "samsung,exynos5250-usb3-phy"), |
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COMPAT(SAMSUNG_EXYNOS_TMU, "samsung,exynos-tmu"), |
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COMPAT(SAMSUNG_EXYNOS_MIPI_DSI, "samsung,exynos-mipi-dsi"), |
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COMPAT(SAMSUNG_EXYNOS_DWMMC, "samsung,exynos-dwmmc"), |
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COMPAT(GENERIC_SPI_FLASH, "jedec,spi-nor"), |
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COMPAT(SAMSUNG_EXYNOS_SYSMMU, "samsung,sysmmu-v3.3"), |
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COMPAT(INTEL_MICROCODE, "intel,microcode"), |
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COMPAT(INTEL_QRK_MRC, "intel,quark-mrc"), |
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COMPAT(ALTERA_SOCFPGA_DWMAC, "altr,socfpga-stmmac"), |
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COMPAT(ALTERA_SOCFPGA_DWMMC, "altr,socfpga-dw-mshc"), |
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COMPAT(ALTERA_SOCFPGA_DWC2USB, "snps,dwc2"), |
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COMPAT(INTEL_BAYTRAIL_FSP, "intel,baytrail-fsp"), COMPAT(INTEL_BAYTRAIL_FSP_MDP, "intel,baytrail-fsp-mdp"), COMPAT(INTEL_IVYBRIDGE_FSP, "intel,ivybridge-fsp"), |
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COMPAT(COMPAT_SUNXI_NAND, "allwinner,sun4i-a10-nand"), |
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COMPAT(ALTERA_SOCFPGA_CLK, "altr,clk-mgr"), COMPAT(ALTERA_SOCFPGA_PINCTRL_SINGLE, "pinctrl-single"), COMPAT(ALTERA_SOCFPGA_H2F_BRG, "altr,socfpga-hps2fpga-bridge"), COMPAT(ALTERA_SOCFPGA_LWH2F_BRG, "altr,socfpga-lwhps2fpga-bridge"), COMPAT(ALTERA_SOCFPGA_F2H_BRG, "altr,socfpga-fpga2hps-bridge"), COMPAT(ALTERA_SOCFPGA_F2SDR0, "altr,socfpga-fpga2sdram0-bridge"), COMPAT(ALTERA_SOCFPGA_F2SDR1, "altr,socfpga-fpga2sdram1-bridge"), COMPAT(ALTERA_SOCFPGA_F2SDR2, "altr,socfpga-fpga2sdram2-bridge"), |
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COMPAT(ALTERA_SOCFPGA_FPGA0, "altr,socfpga-a10-fpga-mgr"), COMPAT(ALTERA_SOCFPGA_NOC, "altr,socfpga-a10-noc"), |
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COMPAT(ALTERA_SOCFPGA_CLK_INIT, "altr,socfpga-a10-clk-init") |
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}; |
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const char *fdtdec_get_compatible(enum fdt_compat_id id) { /* We allow reading of the 'unknown' ID for testing purposes */ assert(id >= 0 && id < COMPAT_COUNT); return compat_names[id]; } |
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fdt_addr_t fdtdec_get_addr_size_fixed(const void *blob, int node, |
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const char *prop_name, int index, int na, int ns, fdt_size_t *sizep, bool translate) |
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{ |
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const fdt32_t *prop, *prop_end; const fdt32_t *prop_addr, *prop_size, *prop_after_size; |
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int len; |
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fdt_addr_t addr; |
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|
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debug("%s: %s: ", __func__, prop_name); |
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prop = fdt_getprop(blob, node, prop_name, &len); if (!prop) { debug("(not found) "); return FDT_ADDR_T_NONE; } prop_end = prop + (len / sizeof(*prop)); prop_addr = prop + (index * (na + ns)); prop_size = prop_addr + na; prop_after_size = prop_size + ns; if (prop_after_size > prop_end) { debug("(not enough data: expected >= %d cells, got %d cells) ", (u32)(prop_after_size - prop), ((u32)(prop_end - prop))); return FDT_ADDR_T_NONE; } |
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#if CONFIG_IS_ENABLED(OF_TRANSLATE) |
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if (translate) addr = fdt_translate_address(blob, node, prop_addr); else #endif addr = fdtdec_get_number(prop_addr, na); |
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if (sizep) { *sizep = fdtdec_get_number(prop_size, ns); |
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debug("addr=%08llx, size=%llx ", (unsigned long long)addr, (unsigned long long)*sizep); |
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} else { |
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debug("addr=%08llx ", (unsigned long long)addr); |
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} return addr; } fdt_addr_t fdtdec_get_addr_size_auto_parent(const void *blob, int parent, |
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int node, const char *prop_name, int index, fdt_size_t *sizep, bool translate) |
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{ int na, ns; debug("%s: ", __func__); na = fdt_address_cells(blob, parent); if (na < 1) { debug("(bad #address-cells) "); return FDT_ADDR_T_NONE; } ns = fdt_size_cells(blob, parent); |
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if (ns < 0) { |
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debug("(bad #size-cells) "); return FDT_ADDR_T_NONE; } debug("na=%d, ns=%d, ", na, ns); return fdtdec_get_addr_size_fixed(blob, node, prop_name, index, na, |
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ns, sizep, translate); |
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} fdt_addr_t fdtdec_get_addr_size_auto_noparent(const void *blob, int node, |
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const char *prop_name, int index, fdt_size_t *sizep, bool translate) |
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{ int parent; debug("%s: ", __func__); parent = fdt_parent_offset(blob, node); if (parent < 0) { debug("(no parent found) "); return FDT_ADDR_T_NONE; |
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} |
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return fdtdec_get_addr_size_auto_parent(blob, parent, node, prop_name, |
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index, sizep, translate); |
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} fdt_addr_t fdtdec_get_addr_size(const void *blob, int node, |
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const char *prop_name, fdt_size_t *sizep) |
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{ |
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int ns = sizep ? (sizeof(fdt_size_t) / sizeof(fdt32_t)) : 0; |
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return fdtdec_get_addr_size_fixed(blob, node, prop_name, 0, sizeof(fdt_addr_t) / sizeof(fdt32_t), |
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ns, sizep, false); |
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} |
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fdt_addr_t fdtdec_get_addr(const void *blob, int node, const char *prop_name) |
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{ return fdtdec_get_addr_size(blob, node, prop_name, NULL); } |
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#if CONFIG_IS_ENABLED(PCI) && defined(CONFIG_DM_PCI) |
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int fdtdec_get_pci_vendev(const void *blob, int node, u16 *vendor, u16 *device) { const char *list, *end; int len; list = fdt_getprop(blob, node, "compatible", &len); if (!list) return -ENOENT; end = list + len; while (list < end) { |
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len = strlen(list); if (len >= strlen("pciVVVV,DDDD")) { |
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char *s = strstr(list, "pci"); |
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/* * check if the string is something like pciVVVV,DDDD.RR * or just pciVVVV,DDDD */ if (s && s[7] == ',' && (s[12] == '.' || s[12] == 0)) { s += 3; *vendor = simple_strtol(s, NULL, 16); s += 5; *device = simple_strtol(s, NULL, 16); return 0; } |
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} |
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list += (len + 1); |
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} return -ENOENT; } |
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int fdtdec_get_pci_bar32(const struct udevice *dev, struct fdt_pci_addr *addr, |
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u32 *bar) |
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{ |
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int barnum; |
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/* extract the bar number from fdt_pci_addr */ barnum = addr->phys_hi & 0xff; |
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if (barnum < PCI_BASE_ADDRESS_0 || barnum > PCI_CARDBUS_CIS) |
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return -EINVAL; barnum = (barnum - PCI_BASE_ADDRESS_0) / 4; |
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*bar = dm_pci_read_bar32(dev, barnum); |
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return 0; } #endif |
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uint64_t fdtdec_get_uint64(const void *blob, int node, const char *prop_name, |
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uint64_t default_val) |
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{ |
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const unaligned_fdt64_t *cell64; |
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int length; cell64 = fdt_getprop(blob, node, prop_name, &length); if (!cell64 || length < sizeof(*cell64)) return default_val; return fdt64_to_cpu(*cell64); } |
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int fdtdec_get_is_enabled(const void *blob, int node) |
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{ const char *cell; |
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/* * It should say "okay", so only allow that. Some fdts use "ok" but * this is a bug. Please fix your device tree source file. See here * for discussion: * * http://www.mail-archive.com/u-boot@lists.denx.de/msg71598.html */ |
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cell = fdt_getprop(blob, node, "status", NULL); if (cell) |
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return strcmp(cell, "okay") == 0; |
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return 1; |
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} |
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enum fdt_compat_id fdtdec_lookup(const void *blob, int node) |
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{ enum fdt_compat_id id; /* Search our drivers */ for (id = COMPAT_UNKNOWN; id < COMPAT_COUNT; id++) |
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if (fdt_node_check_compatible(blob, node, compat_names[id]) == 0) |
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return id; return COMPAT_UNKNOWN; } |
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int fdtdec_next_compatible(const void *blob, int node, enum fdt_compat_id id) |
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{ return fdt_node_offset_by_compatible(blob, node, compat_names[id]); } |
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int fdtdec_next_compatible_subnode(const void *blob, int node, |
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enum fdt_compat_id id, int *depthp) |
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{ do { node = fdt_next_node(blob, node, depthp); } while (*depthp > 1); /* If this is a direct subnode, and compatible, return it */ if (*depthp == 1 && 0 == fdt_node_check_compatible( blob, node, compat_names[id])) return node; return -FDT_ERR_NOTFOUND; } |
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int fdtdec_next_alias(const void *blob, const char *name, enum fdt_compat_id id, int *upto) |
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{ #define MAX_STR_LEN 20 char str[MAX_STR_LEN + 20]; int node, err; /* snprintf() is not available */ assert(strlen(name) < MAX_STR_LEN); sprintf(str, "%.*s%d", MAX_STR_LEN, name, *upto); |
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node = fdt_path_offset(blob, str); |
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if (node < 0) return node; err = fdt_node_check_compatible(blob, node, compat_names[id]); if (err < 0) return err; |
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if (err) return -FDT_ERR_NOTFOUND; (*upto)++; return node; |
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} |
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int fdtdec_find_aliases_for_id(const void *blob, const char *name, |
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enum fdt_compat_id id, int *node_list, int maxcount) |
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{ |
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memset(node_list, '\0', sizeof(*node_list) * maxcount); return fdtdec_add_aliases_for_id(blob, name, id, node_list, maxcount); } /* TODO: Can we tighten this code up a little? */ int fdtdec_add_aliases_for_id(const void *blob, const char *name, |
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enum fdt_compat_id id, int *node_list, int maxcount) |
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{ |
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int name_len = strlen(name); int nodes[maxcount]; int num_found = 0; int offset, node; int alias_node; int count; int i, j; /* find the alias node if present */ alias_node = fdt_path_offset(blob, "/aliases"); /* * start with nothing, and we can assume that the root node can't * match */ memset(nodes, '\0', sizeof(nodes)); /* First find all the compatible nodes */ for (node = count = 0; node >= 0 && count < maxcount;) { node = fdtdec_next_compatible(blob, node, id); if (node >= 0) nodes[count++] = node; } if (node >= 0) debug("%s: warning: maxcount exceeded with alias '%s' ", |
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__func__, name); |
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/* Now find all the aliases */ |
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for (offset = fdt_first_property_offset(blob, alias_node); offset > 0; offset = fdt_next_property_offset(blob, offset)) { const struct fdt_property *prop; const char *path; int number; int found; node = 0; prop = fdt_get_property_by_offset(blob, offset, NULL); path = fdt_string(blob, fdt32_to_cpu(prop->nameoff)); if (prop->len && 0 == strncmp(path, name, name_len)) node = fdt_path_offset(blob, prop->data); if (node <= 0) continue; /* Get the alias number */ number = simple_strtoul(path + name_len, NULL, 10); if (number < 0 || number >= maxcount) { debug("%s: warning: alias '%s' is out of range ", |
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__func__, path); |
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continue; } /* Make sure the node we found is actually in our list! */ found = -1; for (j = 0; j < count; j++) if (nodes[j] == node) { found = j; break; } if (found == -1) { debug("%s: warning: alias '%s' points to a node " "'%s' that is missing or is not compatible " " with '%s' ", __func__, path, fdt_get_name(blob, node, NULL), compat_names[id]); continue; } /* * Add this node to our list in the right place, and mark * it as done. */ if (fdtdec_get_is_enabled(blob, node)) { |
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if (node_list[number]) { debug("%s: warning: alias '%s' requires that " "a node be placed in the list in a " "position which is already filled by " "node '%s' ", __func__, path, fdt_get_name(blob, node, NULL)); continue; } |
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node_list[number] = node; if (number >= num_found) num_found = number + 1; } |
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nodes[found] = 0; |
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} /* Add any nodes not mentioned by an alias */ for (i = j = 0; i < maxcount; i++) { if (!node_list[i]) { for (; j < maxcount; j++) if (nodes[j] && |
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fdtdec_get_is_enabled(blob, nodes[j])) |
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break; /* Have we run out of nodes to add? */ if (j == maxcount) break; assert(!node_list[i]); node_list[i] = nodes[j++]; if (i >= num_found) num_found = i + 1; } } return num_found; } |
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int fdtdec_get_alias_seq(const void *blob, const char *base, int offset, int *seqp) { int base_len = strlen(base); const char *find_name; int find_namelen; int prop_offset; int aliases; find_name = fdt_get_name(blob, offset, &find_namelen); debug("Looking for '%s' at %d, name %s ", base, offset, find_name); aliases = fdt_path_offset(blob, "/aliases"); for (prop_offset = fdt_first_property_offset(blob, aliases); prop_offset > 0; prop_offset = fdt_next_property_offset(blob, prop_offset)) { const char *prop; const char *name; const char *slash; |
c4af6732c lib: Add function... |
468 |
int len, val; |
5c33c9fdb fdt: Add a functi... |
469 470 471 472 473 474 475 476 477 478 479 |
prop = fdt_getprop_by_offset(blob, prop_offset, &name, &len); debug(" - %s, %s ", name, prop); if (len < find_namelen || *prop != '/' || prop[len - 1] || strncmp(name, base, base_len)) continue; slash = strrchr(prop, '/'); if (strcmp(slash + 1, find_name)) continue; |
c4af6732c lib: Add function... |
480 481 482 483 484 485 |
val = trailing_strtol(name); if (val != -1) { *seqp = val; debug("Found seq %d ", *seqp); return 0; |
5c33c9fdb fdt: Add a functi... |
486 487 488 489 490 491 492 |
} } debug("Not found "); return -ENOENT; } |
003c9dc89 fdt: Introduce fd... |
493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 |
int fdtdec_get_alias_highest_id(const void *blob, const char *base) { int base_len = strlen(base); int prop_offset; int aliases; int max = -1; debug("Looking for highest alias id for '%s' ", base); aliases = fdt_path_offset(blob, "/aliases"); for (prop_offset = fdt_first_property_offset(blob, aliases); prop_offset > 0; prop_offset = fdt_next_property_offset(blob, prop_offset)) { const char *prop; const char *name; int len, val; prop = fdt_getprop_by_offset(blob, prop_offset, &name, &len); debug(" - %s, %s ", name, prop); if (*prop != '/' || prop[len - 1] || strncmp(name, base, base_len)) continue; val = trailing_strtol(name); if (val > max) { debug("Found seq %d ", val); max = val; } } return max; } |
3bc37a50e fdt: Add a functi... |
528 |
const char *fdtdec_get_chosen_prop(const void *blob, const char *name) |
aac07d49d dm: fdt: Add a fu... |
529 |
{ |
aac07d49d dm: fdt: Add a fu... |
530 |
int chosen_node; |
aac07d49d dm: fdt: Add a fu... |
531 532 |
if (!blob) |
3bc37a50e fdt: Add a functi... |
533 |
return NULL; |
aac07d49d dm: fdt: Add a fu... |
534 |
chosen_node = fdt_path_offset(blob, "/chosen"); |
3bc37a50e fdt: Add a functi... |
535 536 537 538 539 540 541 542 |
return fdt_getprop(blob, chosen_node, name, NULL); } int fdtdec_get_chosen_node(const void *blob, const char *name) { const char *prop; prop = fdtdec_get_chosen_prop(blob, name); |
aac07d49d dm: fdt: Add a fu... |
543 544 545 546 |
if (!prop) return -FDT_ERR_NOTFOUND; return fdt_path_offset(blob, prop); } |
9a263e55d fdt: Avoid early ... |
547 548 549 550 551 552 553 554 555 556 557 |
int fdtdec_check_fdt(void) { /* * We must have an FDT, but we cannot panic() yet since the console * is not ready. So for now, just assert(). Boards which need an early * FDT (prior to console ready) will need to make their own * arrangements and do their own checks. */ assert(!fdtdec_prepare_fdt()); return 0; } |
b5220bc6e fdt: add decode h... |
558 559 560 561 562 |
/* * This function is a little odd in that it accesses global data. At some * point if the architecture board.c files merge this will make more sense. * Even now, it is common code. */ |
9a263e55d fdt: Avoid early ... |
563 |
int fdtdec_prepare_fdt(void) |
b5220bc6e fdt: add decode h... |
564 |
{ |
c309c2da1 fdt: Skip checkin... |
565 566 |
if (!gd->fdt_blob || ((uintptr_t)gd->fdt_blob & 3) || fdt_check_header(gd->fdt_blob)) { |
66312374d dm: Add a panic_s... |
567 568 569 570 571 572 |
#ifdef CONFIG_SPL_BUILD puts("Missing DTB "); #else puts("No valid device tree binary found - please append one to U-Boot binary, use u-boot-dtb.bin or define CONFIG_OF_EMBED. For sandbox, use -d <file.dtb> "); |
cb5f97f70 fdt: Provide debu... |
573 574 575 576 577 578 579 580 |
# ifdef DEBUG if (gd->fdt_blob) { printf("fdt_blob=%p ", gd->fdt_blob); print_buffer((ulong)gd->fdt_blob, gd->fdt_blob, 4, 32, 0); } # endif |
66312374d dm: Add a panic_s... |
581 |
#endif |
9a263e55d fdt: Avoid early ... |
582 583 |
return -1; } |
b5220bc6e fdt: add decode h... |
584 585 |
return 0; } |
d17da6556 fdt: Add function... |
586 587 588 589 590 |
int fdtdec_lookup_phandle(const void *blob, int node, const char *prop_name) { const u32 *phandle; int lookup; |
1cb2323b8 fdt: Tidy debuggi... |
591 592 |
debug("%s: %s ", __func__, prop_name); |
d17da6556 fdt: Add function... |
593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 |
phandle = fdt_getprop(blob, node, prop_name, NULL); if (!phandle) return -FDT_ERR_NOTFOUND; lookup = fdt_node_offset_by_phandle(blob, fdt32_to_cpu(*phandle)); return lookup; } /** * Look up a property in a node and check that it has a minimum length. * * @param blob FDT blob * @param node node to examine * @param prop_name name of property to find * @param min_len minimum property length in bytes * @param err 0 if ok, or -FDT_ERR_NOTFOUND if the property is not found, or -FDT_ERR_BADLAYOUT if not enough data * @return pointer to cell, which is only valid if err == 0 */ static const void *get_prop_check_min_len(const void *blob, int node, |
2e38662dc lib: fdtdec: Fix ... |
613 614 |
const char *prop_name, int min_len, int *err) |
d17da6556 fdt: Add function... |
615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 |
{ const void *cell; int len; debug("%s: %s ", __func__, prop_name); cell = fdt_getprop(blob, node, prop_name, &len); if (!cell) *err = -FDT_ERR_NOTFOUND; else if (len < min_len) *err = -FDT_ERR_BADLAYOUT; else *err = 0; return cell; } int fdtdec_get_int_array(const void *blob, int node, const char *prop_name, |
2e38662dc lib: fdtdec: Fix ... |
632 |
u32 *array, int count) |
d17da6556 fdt: Add function... |
633 634 |
{ const u32 *cell; |
b79221a7d lib: fdtdec: Fix ... |
635 |
int err = 0; |
d17da6556 fdt: Add function... |
636 637 638 639 640 641 |
debug("%s: %s ", __func__, prop_name); cell = get_prop_check_min_len(blob, node, prop_name, sizeof(u32) * count, &err); if (!err) { |
b79221a7d lib: fdtdec: Fix ... |
642 |
int i; |
d17da6556 fdt: Add function... |
643 644 645 646 647 |
for (i = 0; i < count; i++) array[i] = fdt32_to_cpu(cell[i]); } return err; } |
a9f04d49e fdt: Add a functi... |
648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 |
int fdtdec_get_int_array_count(const void *blob, int node, const char *prop_name, u32 *array, int count) { const u32 *cell; int len, elems; int i; debug("%s: %s ", __func__, prop_name); cell = fdt_getprop(blob, node, prop_name, &len); if (!cell) return -FDT_ERR_NOTFOUND; elems = len / sizeof(u32); if (count > elems) count = elems; for (i = 0; i < count; i++) array[i] = fdt32_to_cpu(cell[i]); return count; } |
96875e7d3 fdt: Add function... |
668 669 670 671 672 673 674 675 676 677 |
const u32 *fdtdec_locate_array(const void *blob, int node, const char *prop_name, int count) { const u32 *cell; int err; cell = get_prop_check_min_len(blob, node, prop_name, sizeof(u32) * count, &err); return err ? NULL : cell; } |
d17da6556 fdt: Add function... |
678 679 680 681 682 683 684 685 686 687 |
int fdtdec_get_bool(const void *blob, int node, const char *prop_name) { const s32 *cell; int len; debug("%s: %s ", __func__, prop_name); cell = fdt_getprop(blob, node, prop_name, &len); return cell != NULL; } |
ed3ee5cd0 fdt: Add basic su... |
688 |
|
57068a7ae dm: fdt: Add a fu... |
689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 |
int fdtdec_parse_phandle_with_args(const void *blob, int src_node, const char *list_name, const char *cells_name, int cell_count, int index, struct fdtdec_phandle_args *out_args) { const __be32 *list, *list_end; int rc = 0, size, cur_index = 0; uint32_t count = 0; int node = -1; int phandle; /* Retrieve the phandle list property */ list = fdt_getprop(blob, src_node, list_name, &size); if (!list) return -ENOENT; list_end = list + size / sizeof(*list); /* Loop over the phandles until all the requested entry is found */ while (list < list_end) { rc = -EINVAL; count = 0; /* * If phandle is 0, then it is an empty entry with no * arguments. Skip forward to the next entry. */ phandle = be32_to_cpup(list++); if (phandle) { /* * Find the provider node and parse the #*-cells * property to determine the argument length. * * This is not needed if the cell count is hard-coded * (i.e. cells_name not set, but cell_count is set), * except when we're going to return the found node * below. */ if (cells_name || cur_index == index) { node = fdt_node_offset_by_phandle(blob, phandle); if (!node) { debug("%s: could not find phandle ", fdt_get_name(blob, src_node, NULL)); goto err; } } if (cells_name) { count = fdtdec_get_int(blob, node, cells_name, -1); if (count == -1) { debug("%s: could not get %s for %s ", fdt_get_name(blob, src_node, NULL), cells_name, fdt_get_name(blob, node, NULL)); goto err; } } else { count = cell_count; } /* * Make sure that the arguments actually fit in the * remaining property data length */ if (list + count > list_end) { debug("%s: arguments longer than property ", fdt_get_name(blob, src_node, NULL)); goto err; } } /* * All of the error cases above bail out of the loop, so at * this point, the parsing is successful. If the requested * index matches, then fill the out_args structure and return, * or return -ENOENT for an empty entry. */ rc = -ENOENT; if (cur_index == index) { if (!phandle) goto err; if (out_args) { int i; if (count > MAX_PHANDLE_ARGS) { debug("%s: too many arguments %d ", fdt_get_name(blob, src_node, NULL), count); count = MAX_PHANDLE_ARGS; } out_args->node = node; out_args->args_count = count; for (i = 0; i < count; i++) { out_args->args[i] = be32_to_cpup(list++); } } /* Found it! return success */ return 0; } node = -1; list += count; cur_index++; } /* * Result will be one of: * -ENOENT : index is for empty phandle * -EINVAL : parsing error on data * [1..n] : Number of phandle (count mode; when index = -1) */ rc = index < 0 ? cur_index : -ENOENT; err: return rc; } |
1889a7e27 fdt: introduce fd... |
816 817 818 819 |
int fdtdec_get_child_count(const void *blob, int node) { int subnode; int num = 0; |
df87e6b1b libfdt: Sync fdt_... |
820 |
fdt_for_each_subnode(subnode, blob, node) |
1889a7e27 fdt: introduce fd... |
821 822 823 824 |
num++; return num; } |
bed4d8927 fdt: Add fdtdec f... |
825 |
int fdtdec_get_byte_array(const void *blob, int node, const char *prop_name, |
2e38662dc lib: fdtdec: Fix ... |
826 |
u8 *array, int count) |
bed4d8927 fdt: Add fdtdec f... |
827 828 829 830 831 832 833 834 835 836 837 |
{ const u8 *cell; int err; cell = get_prop_check_min_len(blob, node, prop_name, count, &err); if (!err) memcpy(array, cell, count); return err; } const u8 *fdtdec_locate_byte_array(const void *blob, int node, |
2e38662dc lib: fdtdec: Fix ... |
838 |
const char *prop_name, int count) |
bed4d8927 fdt: Add fdtdec f... |
839 840 841 842 843 844 845 846 847 |
{ const u8 *cell; int err; cell = get_prop_check_min_len(blob, node, prop_name, count, &err); if (err) return NULL; return cell; } |
09258f1e8 fdt: Add function... |
848 |
|
09258f1e8 fdt: Add function... |
849 |
int fdtdec_get_config_int(const void *blob, const char *prop_name, |
2e38662dc lib: fdtdec: Fix ... |
850 |
int default_val) |
09258f1e8 fdt: Add function... |
851 852 853 854 855 856 857 858 859 860 |
{ int config_node; debug("%s: %s ", __func__, prop_name); config_node = fdt_path_offset(blob, "/config"); if (config_node < 0) return default_val; return fdtdec_get_int(blob, config_node, prop_name, default_val); } |
332ab0d54 fdt: Add function... |
861 |
|
79289c0b5 fdt: Add function... |
862 863 864 865 866 867 868 869 870 871 872 873 874 875 |
int fdtdec_get_config_bool(const void *blob, const char *prop_name) { int config_node; const void *prop; debug("%s: %s ", __func__, prop_name); config_node = fdt_path_offset(blob, "/config"); if (config_node < 0) return 0; prop = fdt_get_property(blob, config_node, prop_name, NULL); return prop != NULL; } |
332ab0d54 fdt: Add function... |
876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 |
char *fdtdec_get_config_string(const void *blob, const char *prop_name) { const char *nodep; int nodeoffset; int len; debug("%s: %s ", __func__, prop_name); nodeoffset = fdt_path_offset(blob, "/config"); if (nodeoffset < 0) return NULL; nodep = fdt_getprop(blob, nodeoffset, prop_name, &len); if (!nodep) return NULL; return (char *)nodep; } |
f20c46198 fdt: Add fdtdec_d... |
894 |
|
5f7bfdd63 fdt: Export fdtde... |
895 |
u64 fdtdec_get_number(const fdt32_t *ptr, unsigned int cells) |
56f42242f fdt: Add resource... |
896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 |
{ u64 number = 0; while (cells--) number = (number << 32) | fdt32_to_cpu(*ptr++); return number; } int fdt_get_resource(const void *fdt, int node, const char *property, unsigned int index, struct fdt_resource *res) { const fdt32_t *ptr, *end; int na, ns, len, parent; unsigned int i = 0; parent = fdt_parent_offset(fdt, node); if (parent < 0) return parent; na = fdt_address_cells(fdt, parent); ns = fdt_size_cells(fdt, parent); ptr = fdt_getprop(fdt, node, property, &len); if (!ptr) return len; end = ptr + len / sizeof(*ptr); while (ptr + na + ns <= end) { if (i == index) { |
b79221a7d lib: fdtdec: Fix ... |
927 928 |
res->start = fdtdec_get_number(ptr, na); res->end = res->start; |
56f42242f fdt: Add resource... |
929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 |
res->end += fdtdec_get_number(&ptr[na], ns) - 1; return 0; } ptr += na + ns; i++; } return -FDT_ERR_NOTFOUND; } int fdt_get_named_resource(const void *fdt, int node, const char *property, const char *prop_names, const char *name, struct fdt_resource *res) { int index; |
b02e4044f libfdt: Bring in ... |
945 |
index = fdt_stringlist_search(fdt, node, prop_names, name); |
56f42242f fdt: Add resource... |
946 947 948 949 950 |
if (index < 0) return index; return fdt_get_resource(fdt, node, property, index, res); } |
9f85eee72 fdt: Add a functi... |
951 |
|
12e671142 fdt: Add binding ... |
952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 |
static int decode_timing_property(const void *blob, int node, const char *name, struct timing_entry *result) { int length, ret = 0; const u32 *prop; prop = fdt_getprop(blob, node, name, &length); if (!prop) { debug("%s: could not find property %s ", fdt_get_name(blob, node, NULL), name); return length; } if (length == sizeof(u32)) { result->typ = fdtdec_get_int(blob, node, name, 0); result->min = result->typ; result->max = result->typ; } else { ret = fdtdec_get_int_array(blob, node, name, &result->min, 3); } return ret; } int fdtdec_decode_display_timing(const void *blob, int parent, int index, struct display_timing *dt) { int i, node, timings_node; u32 val = 0; int ret = 0; timings_node = fdt_subnode_offset(blob, parent, "display-timings"); if (timings_node < 0) return timings_node; for (i = 0, node = fdt_first_subnode(blob, timings_node); node > 0 && i != index; node = fdt_next_subnode(blob, node)) i++; if (node < 0) return node; memset(dt, 0, sizeof(*dt)); ret |= decode_timing_property(blob, node, "hback-porch", &dt->hback_porch); ret |= decode_timing_property(blob, node, "hfront-porch", &dt->hfront_porch); ret |= decode_timing_property(blob, node, "hactive", &dt->hactive); ret |= decode_timing_property(blob, node, "hsync-len", &dt->hsync_len); ret |= decode_timing_property(blob, node, "vback-porch", &dt->vback_porch); ret |= decode_timing_property(blob, node, "vfront-porch", &dt->vfront_porch); ret |= decode_timing_property(blob, node, "vactive", &dt->vactive); ret |= decode_timing_property(blob, node, "vsync-len", &dt->vsync_len); ret |= decode_timing_property(blob, node, "clock-frequency", &dt->pixelclock); dt->flags = 0; val = fdtdec_get_int(blob, node, "vsync-active", -1); if (val != -1) { dt->flags |= val ? DISPLAY_FLAGS_VSYNC_HIGH : DISPLAY_FLAGS_VSYNC_LOW; } val = fdtdec_get_int(blob, node, "hsync-active", -1); if (val != -1) { dt->flags |= val ? DISPLAY_FLAGS_HSYNC_HIGH : DISPLAY_FLAGS_HSYNC_LOW; } val = fdtdec_get_int(blob, node, "de-active", -1); if (val != -1) { dt->flags |= val ? DISPLAY_FLAGS_DE_HIGH : DISPLAY_FLAGS_DE_LOW; } val = fdtdec_get_int(blob, node, "pixelclk-active", -1); if (val != -1) { dt->flags |= val ? DISPLAY_FLAGS_PIXDATA_POSEDGE : DISPLAY_FLAGS_PIXDATA_NEGEDGE; } if (fdtdec_get_bool(blob, node, "interlaced")) dt->flags |= DISPLAY_FLAGS_INTERLACED; if (fdtdec_get_bool(blob, node, "doublescan")) dt->flags |= DISPLAY_FLAGS_DOUBLESCAN; if (fdtdec_get_bool(blob, node, "doubleclk")) dt->flags |= DISPLAY_FLAGS_DOUBLECLK; |
04b9dd10c fdt: Correct retu... |
1041 |
return ret; |
12e671142 fdt: Add binding ... |
1042 |
} |
3ebe09d09 lib: fdt: Split f... |
1043 |
int fdtdec_setup_mem_size_base_fdt(const void *blob) |
623f60198 fdt: add memory b... |
1044 1045 1046 |
{ int ret, mem; struct fdt_resource res; |
3ebe09d09 lib: fdt: Split f... |
1047 |
mem = fdt_path_offset(blob, "/memory"); |
623f60198 fdt: add memory b... |
1048 1049 1050 1051 1052 |
if (mem < 0) { debug("%s: Missing /memory node ", __func__); return -EINVAL; } |
3ebe09d09 lib: fdt: Split f... |
1053 |
ret = fdt_get_resource(blob, mem, "reg", 0, &res); |
623f60198 fdt: add memory b... |
1054 1055 1056 1057 1058 1059 1060 |
if (ret != 0) { debug("%s: Unable to decode first memory bank ", __func__); return -EINVAL; } gd->ram_size = (phys_size_t)(res.end - res.start + 1); |
1473b12ad lib: fdtdec: Upda... |
1061 |
gd->ram_base = (unsigned long)res.start; |
c69380f85 fdt: Correct cast... |
1062 1063 1064 |
debug("%s: Initial DRAM size %llx ", __func__, (unsigned long long)gd->ram_size); |
623f60198 fdt: add memory b... |
1065 1066 1067 |
return 0; } |
3ebe09d09 lib: fdt: Split f... |
1068 1069 1070 1071 |
int fdtdec_setup_mem_size_base(void) { return fdtdec_setup_mem_size_base_fdt(gd->fdt_blob); } |
623f60198 fdt: add memory b... |
1072 |
#if defined(CONFIG_NR_DRAM_BANKS) |
452bc1210 fdt: fix fdtdec_s... |
1073 |
|
658954cb4 Revert "fdt: fdtd... |
1074 |
static int get_next_memory_node(const void *blob, int mem) |
452bc1210 fdt: fix fdtdec_s... |
1075 |
{ |
452bc1210 fdt: fix fdtdec_s... |
1076 |
do { |
118f4d455 lib: fdt: Split f... |
1077 |
mem = fdt_node_offset_by_prop_value(blob, mem, |
658954cb4 Revert "fdt: fdtd... |
1078 1079 |
"device_type", "memory", 7); } while (!fdtdec_get_is_enabled(blob, mem)); |
452bc1210 fdt: fix fdtdec_s... |
1080 1081 1082 |
return mem; } |
118f4d455 lib: fdt: Split f... |
1083 |
int fdtdec_setup_memory_banksize_fdt(const void *blob) |
623f60198 fdt: add memory b... |
1084 |
{ |
658954cb4 Revert "fdt: fdtd... |
1085 1086 |
int bank, ret, mem, reg = 0; struct fdt_resource res; |
623f60198 fdt: add memory b... |
1087 |
|
118f4d455 lib: fdt: Split f... |
1088 |
mem = get_next_memory_node(blob, -1); |
658954cb4 Revert "fdt: fdtd... |
1089 1090 1091 1092 1093 |
if (mem < 0) { debug("%s: Missing /memory node ", __func__); return -EINVAL; } |
623f60198 fdt: add memory b... |
1094 1095 |
for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) { |
118f4d455 lib: fdt: Split f... |
1096 |
ret = fdt_get_resource(blob, mem, "reg", reg++, &res); |
658954cb4 Revert "fdt: fdtd... |
1097 |
if (ret == -FDT_ERR_NOTFOUND) { |
942ee0933 fdtdec: Support p... |
1098 |
reg = 0; |
118f4d455 lib: fdt: Split f... |
1099 |
mem = get_next_memory_node(blob, mem); |
658954cb4 Revert "fdt: fdtd... |
1100 1101 |
if (mem == -FDT_ERR_NOTFOUND) break; |
118f4d455 lib: fdt: Split f... |
1102 |
ret = fdt_get_resource(blob, mem, "reg", reg++, &res); |
658954cb4 Revert "fdt: fdtd... |
1103 1104 1105 1106 1107 |
if (ret == -FDT_ERR_NOTFOUND) break; } if (ret != 0) { return -EINVAL; |
942ee0933 fdtdec: Support p... |
1108 |
} |
623f60198 fdt: add memory b... |
1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 |
gd->bd->bi_dram[bank].start = (phys_addr_t)res.start; gd->bd->bi_dram[bank].size = (phys_size_t)(res.end - res.start + 1); debug("%s: DRAM Bank #%d: start = 0x%llx, size = 0x%llx ", __func__, bank, (unsigned long long)gd->bd->bi_dram[bank].start, (unsigned long long)gd->bd->bi_dram[bank].size); } return 0; } |
118f4d455 lib: fdt: Split f... |
1123 1124 1125 1126 1127 1128 |
int fdtdec_setup_memory_banksize(void) { return fdtdec_setup_memory_banksize_fdt(gd->fdt_blob); } |
623f60198 fdt: add memory b... |
1129 |
#endif |
2f57c9510 spl: dm: Make it ... |
1130 1131 1132 1133 1134 |
#if CONFIG_IS_ENABLED(MULTI_DTB_FIT) # if CONFIG_IS_ENABLED(MULTI_DTB_FIT_GZIP) ||\ CONFIG_IS_ENABLED(MULTI_DTB_FIT_LZO) static int uncompress_blob(const void *src, ulong sz_src, void **dstp) { |
95f4bbd58 lib: fdt: Allow L... |
1135 |
size_t sz_out = CONFIG_VAL(MULTI_DTB_FIT_UNCOMPRESS_SZ); |
1fd303543 lib: fdt: Allow e... |
1136 |
bool gzip = 0, lzo = 0; |
2f57c9510 spl: dm: Make it ... |
1137 1138 1139 1140 1141 |
ulong sz_in = sz_src; void *dst; int rc; if (CONFIG_IS_ENABLED(GZIP)) |
1fd303543 lib: fdt: Allow e... |
1142 1143 |
if (gzip_parse_header(src, sz_in) >= 0) gzip = 1; |
2f57c9510 spl: dm: Make it ... |
1144 |
if (CONFIG_IS_ENABLED(LZO)) |
1fd303543 lib: fdt: Allow e... |
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if (!gzip && lzop_is_valid_header(src)) lzo = 1; if (!gzip && !lzo) return -EBADMSG; |
2f57c9510 spl: dm: Make it ... |
1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 |
if (CONFIG_IS_ENABLED(MULTI_DTB_FIT_DYN_ALLOC)) { dst = malloc(sz_out); if (!dst) { puts("uncompress_blob: Unable to allocate memory "); return -ENOMEM; } } else { # if CONFIG_IS_ENABLED(MULTI_DTB_FIT_USER_DEFINED_AREA) dst = (void *)CONFIG_VAL(MULTI_DTB_FIT_USER_DEF_ADDR); # else return -ENOTSUPP; # endif } |
1fd303543 lib: fdt: Allow e... |
1165 |
if (CONFIG_IS_ENABLED(GZIP) && gzip) |
2f57c9510 spl: dm: Make it ... |
1166 |
rc = gunzip(dst, sz_out, (u8 *)src, &sz_in); |
1fd303543 lib: fdt: Allow e... |
1167 |
else if (CONFIG_IS_ENABLED(LZO) && lzo) |
2f57c9510 spl: dm: Make it ... |
1168 |
rc = lzop_decompress(src, sz_in, dst, &sz_out); |
1fd303543 lib: fdt: Allow e... |
1169 1170 |
else hang(); |
2f57c9510 spl: dm: Make it ... |
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if (rc < 0) { /* not a valid compressed blob */ puts("uncompress_blob: Unable to uncompress "); if (CONFIG_IS_ENABLED(MULTI_DTB_FIT_DYN_ALLOC)) free(dst); return -EBADMSG; } *dstp = dst; return 0; } # else static int uncompress_blob(const void *src, ulong sz_src, void **dstp) { |
410d9b644 fdt: Fix uncompre... |
1186 1187 |
*dstp = (void *)src; return 0; |
2f57c9510 spl: dm: Make it ... |
1188 1189 1190 |
} # endif #endif |
3b595da44 fdtdec: allow boa... |
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#if defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE) /* * For CONFIG_OF_SEPARATE, the board may optionally implement this to * provide and/or fixup the fdt. */ __weak void *board_fdt_blob_setup(void) { void *fdt_blob = NULL; #ifdef CONFIG_SPL_BUILD /* FDT is at end of BSS unless it is in a different memory region */ if (IS_ENABLED(CONFIG_SPL_SEPARATE_BSS)) fdt_blob = (ulong *)&_image_binary_end; else fdt_blob = (ulong *)&__bss_end; #else /* FDT is at end of image */ fdt_blob = (ulong *)&_end; #endif return fdt_blob; } #endif |
ebf30e845 fdtdec: Add fdtde... |
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int fdtdec_set_ethernet_mac_address(void *fdt, const u8 *mac, size_t size) { const char *path; int offset, err; if (!is_valid_ethaddr(mac)) return -EINVAL; path = fdt_get_alias(fdt, "ethernet"); if (!path) return 0; debug("ethernet alias found: %s ", path); offset = fdt_path_offset(fdt, path); if (offset < 0) { debug("ethernet alias points to absent node %s ", path); return -ENOENT; } err = fdt_setprop_inplace(fdt, offset, "local-mac-address", mac, size); if (err < 0) return err; debug("MAC address: %pM ", mac); return 0; } |
c9222a08b fdtdec: Implement... |
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static int fdtdec_init_reserved_memory(void *blob) { int na, ns, node, err; fdt32_t value; /* inherit #address-cells and #size-cells from the root node */ na = fdt_address_cells(blob, 0); ns = fdt_size_cells(blob, 0); node = fdt_add_subnode(blob, 0, "reserved-memory"); if (node < 0) return node; err = fdt_setprop(blob, node, "ranges", NULL, 0); if (err < 0) return err; value = cpu_to_fdt32(ns); err = fdt_setprop(blob, node, "#size-cells", &value, sizeof(value)); if (err < 0) return err; value = cpu_to_fdt32(na); err = fdt_setprop(blob, node, "#address-cells", &value, sizeof(value)); if (err < 0) return err; return node; } int fdtdec_add_reserved_memory(void *blob, const char *basename, const struct fdt_memory *carveout, uint32_t *phandlep) { fdt32_t cells[4] = {}, *ptr = cells; uint32_t upper, lower, phandle; int parent, node, na, ns, err; |
3bf2f1535 fdtdec: Remove fd... |
1282 |
fdt_size_t size; |
c9222a08b fdtdec: Implement... |
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char name[64]; /* create an empty /reserved-memory node if one doesn't exist */ parent = fdt_path_offset(blob, "/reserved-memory"); if (parent < 0) { parent = fdtdec_init_reserved_memory(blob); if (parent < 0) return parent; } /* only 1 or 2 #address-cells and #size-cells are supported */ na = fdt_address_cells(blob, parent); if (na < 1 || na > 2) return -FDT_ERR_BADNCELLS; ns = fdt_size_cells(blob, parent); if (ns < 1 || ns > 2) return -FDT_ERR_BADNCELLS; /* find a matching node and return the phandle to that */ fdt_for_each_subnode(node, blob, parent) { const char *name = fdt_get_name(blob, node, NULL); phys_addr_t addr, size; addr = fdtdec_get_addr_size(blob, node, "reg", &size); if (addr == FDT_ADDR_T_NONE) { debug("failed to read address/size for %s ", name); continue; } if (addr == carveout->start && (addr + size) == carveout->end) { |
086336a22 fdtdec: protect a... |
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if (phandlep) *phandlep = fdt_get_phandle(blob, node); |
c9222a08b fdtdec: Implement... |
1317 1318 1319 1320 1321 1322 1323 1324 |
return 0; } } /* * Unpack the start address and generate the name of the new node * base on the basename and the unit-address. */ |
3bf2f1535 fdtdec: Remove fd... |
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upper = upper_32_bits(carveout->start); lower = lower_32_bits(carveout->start); |
c9222a08b fdtdec: Implement... |
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if (na > 1 && upper > 0) snprintf(name, sizeof(name), "%s@%x,%x", basename, upper, lower); else { if (upper > 0) { debug("address %08x:%08x exceeds addressable space ", upper, lower); return -FDT_ERR_BADVALUE; } snprintf(name, sizeof(name), "%s@%x", basename, lower); } node = fdt_add_subnode(blob, parent, name); if (node < 0) return node; |
357d2ceba fdtdec: only crea... |
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if (phandlep) { err = fdt_generate_phandle(blob, &phandle); if (err < 0) return err; err = fdtdec_set_phandle(blob, node, phandle); if (err < 0) return err; } |
c9222a08b fdtdec: Implement... |
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/* store one or two address cells */ if (na > 1) *ptr++ = cpu_to_fdt32(upper); *ptr++ = cpu_to_fdt32(lower); /* store one or two size cells */ |
3bf2f1535 fdtdec: Remove fd... |
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size = carveout->end - carveout->start + 1; upper = upper_32_bits(size); lower = lower_32_bits(size); |
c9222a08b fdtdec: Implement... |
1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 |
if (ns > 1) *ptr++ = cpu_to_fdt32(upper); *ptr++ = cpu_to_fdt32(lower); err = fdt_setprop(blob, node, "reg", cells, (na + ns) * sizeof(*cells)); if (err < 0) return err; /* return the phandle for the new node for the caller to use */ if (phandlep) *phandlep = phandle; return 0; } |
16523ac79 fdtdec: Implement... |
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int fdtdec_get_carveout(const void *blob, const char *node, const char *name, unsigned int index, struct fdt_memory *carveout) { const fdt32_t *prop; uint32_t phandle; int offset, len; fdt_size_t size; offset = fdt_path_offset(blob, node); if (offset < 0) return offset; prop = fdt_getprop(blob, offset, name, &len); if (!prop) { debug("failed to get %s for %s ", name, node); return -FDT_ERR_NOTFOUND; } if ((len % sizeof(phandle)) != 0) { debug("invalid phandle property "); return -FDT_ERR_BADPHANDLE; } if (len < (sizeof(phandle) * (index + 1))) { debug("invalid phandle index "); return -FDT_ERR_BADPHANDLE; } phandle = fdt32_to_cpu(prop[index]); offset = fdt_node_offset_by_phandle(blob, phandle); if (offset < 0) { debug("failed to find node for phandle %u ", phandle); return offset; } carveout->start = fdtdec_get_addr_size_auto_noparent(blob, offset, "reg", 0, &size, true); if (carveout->start == FDT_ADDR_T_NONE) { debug("failed to read address/size from \"reg\" property "); return -FDT_ERR_NOTFOUND; } carveout->end = carveout->start + size - 1; return 0; } int fdtdec_set_carveout(void *blob, const char *node, const char *prop_name, unsigned int index, const char *name, const struct fdt_memory *carveout) { uint32_t phandle; int err, offset; fdt32_t value; /* XXX implement support for multiple phandles */ if (index > 0) { debug("invalid index %u ", index); return -FDT_ERR_BADOFFSET; } err = fdtdec_add_reserved_memory(blob, name, carveout, &phandle); if (err < 0) { debug("failed to add reserved memory: %d ", err); return err; } offset = fdt_path_offset(blob, node); if (offset < 0) { debug("failed to find offset for node %s: %d ", node, offset); return offset; } value = cpu_to_fdt32(phandle); err = fdt_setprop(blob, offset, prop_name, &value, sizeof(value)); if (err < 0) { debug("failed to set %s property for node %s: %d ", prop_name, node, err); return err; } return 0; } |
0879361fd fdt: Rename setup... |
1476 |
int fdtdec_setup(void) |
b45122fdf fdt: sandbox: Mov... |
1477 |
{ |
0f9258228 of: clean up OF_C... |
1478 |
#if CONFIG_IS_ENABLED(OF_CONTROL) |
2f57c9510 spl: dm: Make it ... |
1479 1480 1481 |
# if CONFIG_IS_ENABLED(MULTI_DTB_FIT) void *fdt_blob; # endif |
b45122fdf fdt: sandbox: Mov... |
1482 1483 |
# ifdef CONFIG_OF_EMBED /* Get a pointer to the FDT */ |
9bd76b807 spl: make CONFIG_... |
1484 1485 1486 |
# ifdef CONFIG_SPL_BUILD gd->fdt_blob = __dtb_dt_spl_begin; # else |
b45122fdf fdt: sandbox: Mov... |
1487 |
gd->fdt_blob = __dtb_dt_begin; |
9bd76b807 spl: make CONFIG_... |
1488 |
# endif |
3b595da44 fdtdec: allow boa... |
1489 |
# elif defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE) |
82f766d1d Allow boards to i... |
1490 1491 |
/* Allow the board to override the fdt address. */ gd->fdt_blob = board_fdt_blob_setup(); |
b45122fdf fdt: sandbox: Mov... |
1492 1493 1494 1495 1496 1497 |
# elif defined(CONFIG_OF_HOSTFILE) if (sandbox_read_fdt_from_file()) { puts("Failed to read control FDT "); return -1; } |
c4f603f72 fdtdec: make CONF... |
1498 1499 |
# elif defined(CONFIG_OF_PRIOR_STAGE) gd->fdt_blob = (void *)prior_stage_fdt_address; |
b45122fdf fdt: sandbox: Mov... |
1500 1501 1502 |
# endif # ifndef CONFIG_SPL_BUILD /* Allow the early environment to override the fdt address */ |
f980c9998 fdt: sandbox: cor... |
1503 1504 1505 |
gd->fdt_blob = map_sysmem (env_get_ulong("fdtcontroladdr", 16, (unsigned long)map_to_sysmem(gd->fdt_blob)), 0); |
b45122fdf fdt: sandbox: Mov... |
1506 |
# endif |
2f57c9510 spl: dm: Make it ... |
1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 |
# if CONFIG_IS_ENABLED(MULTI_DTB_FIT) /* * Try and uncompress the blob. * Unfortunately there is no way to know how big the input blob really * is. So let us set the maximum input size arbitrarily high. 16MB * ought to be more than enough for packed DTBs. */ if (uncompress_blob(gd->fdt_blob, 0x1000000, &fdt_blob) == 0) gd->fdt_blob = fdt_blob; /* * Check if blob is a FIT images containings DTBs. * If so, pick the most relevant */ fdt_blob = locate_dtb_in_fit(gd->fdt_blob); |
f1d2bc903 lib: fdtdec: Add ... |
1523 1524 |
if (fdt_blob) { gd->multi_dtb_fit = gd->fdt_blob; |
2f57c9510 spl: dm: Make it ... |
1525 |
gd->fdt_blob = fdt_blob; |
f1d2bc903 lib: fdtdec: Add ... |
1526 |
} |
2f57c9510 spl: dm: Make it ... |
1527 |
# endif |
29a23f9d6 tools, fit_check_... |
1528 |
#endif |
2f57c9510 spl: dm: Make it ... |
1529 |
|
0879361fd fdt: Rename setup... |
1530 |
return fdtdec_prepare_fdt(); |
b45122fdf fdt: sandbox: Mov... |
1531 |
} |
f1d2bc903 lib: fdtdec: Add ... |
1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 |
#if CONFIG_IS_ENABLED(MULTI_DTB_FIT) int fdtdec_resetup(int *rescan) { void *fdt_blob; /* * If the current DTB is part of a compressed FIT image, * try to locate the best match from the uncompressed * FIT image stillpresent there. Save the time and space * required to uncompress it again. */ if (gd->multi_dtb_fit) { fdt_blob = locate_dtb_in_fit(gd->multi_dtb_fit); if (fdt_blob == gd->fdt_blob) { /* * The best match did not change. no need to tear down * the DM and rescan the fdt. */ *rescan = 0; return 0; } *rescan = 1; gd->fdt_blob = fdt_blob; return fdtdec_prepare_fdt(); } /* * If multi_dtb_fit is NULL, it means that blob appended to u-boot is * not a FIT image containings DTB, but a single DTB. There is no need * to teard down DM and rescan the DT in this case. */ *rescan = 0; return 0; } #endif |
90c08fa03 fdt: Add device t... |
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#ifdef CONFIG_NR_DRAM_BANKS int fdtdec_decode_ram_size(const void *blob, const char *area, int board_id, phys_addr_t *basep, phys_size_t *sizep, bd_t *bd) { int addr_cells, size_cells; const u32 *cell, *end; u64 total_size, size, addr; int node, child; bool auto_size; int bank; int len; debug("%s: board_id=%d ", __func__, board_id); if (!area) area = "/memory"; node = fdt_path_offset(blob, area); if (node < 0) { debug("No %s node found ", area); return -ENOENT; } cell = fdt_getprop(blob, node, "reg", &len); if (!cell) { debug("No reg property found "); return -ENOENT; } addr_cells = fdt_address_cells(blob, node); size_cells = fdt_size_cells(blob, node); /* Check the board id and mask */ for (child = fdt_first_subnode(blob, node); child >= 0; child = fdt_next_subnode(blob, child)) { int match_mask, match_value; match_mask = fdtdec_get_int(blob, child, "match-mask", -1); match_value = fdtdec_get_int(blob, child, "match-value", -1); if (match_value >= 0 && ((board_id & match_mask) == match_value)) { /* Found matching mask */ debug("Found matching mask %d ", match_mask); node = child; cell = fdt_getprop(blob, node, "reg", &len); if (!cell) { debug("No memory-banks property found "); return -EINVAL; } break; } } /* Note: if no matching subnode was found we use the parent node */ if (bd) { memset(bd->bi_dram, '\0', sizeof(bd->bi_dram[0]) * CONFIG_NR_DRAM_BANKS); } auto_size = fdtdec_get_bool(blob, node, "auto-size"); total_size = 0; end = cell + len / 4 - addr_cells - size_cells; debug("cell at %p, end %p ", cell, end); for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) { if (cell > end) break; addr = 0; if (addr_cells == 2) addr += (u64)fdt32_to_cpu(*cell++) << 32UL; addr += fdt32_to_cpu(*cell++); if (bd) bd->bi_dram[bank].start = addr; if (basep && !bank) *basep = (phys_addr_t)addr; size = 0; if (size_cells == 2) size += (u64)fdt32_to_cpu(*cell++) << 32UL; size += fdt32_to_cpu(*cell++); if (auto_size) { u64 new_size; |
dee37fc99 Remove <inttypes.... |
1658 |
debug("Auto-sizing %llx, size %llx: ", addr, size); |
90c08fa03 fdt: Add device t... |
1659 1660 1661 1662 1663 |
new_size = get_ram_size((long *)(uintptr_t)addr, size); if (new_size == size) { debug("OK "); } else { |
dee37fc99 Remove <inttypes.... |
1664 1665 |
debug("sized to %llx ", new_size); |
90c08fa03 fdt: Add device t... |
1666 1667 1668 1669 1670 1671 1672 1673 |
size = new_size; } } if (bd) bd->bi_dram[bank].size = size; total_size += size; } |
dee37fc99 Remove <inttypes.... |
1674 1675 |
debug("Memory size %llu ", total_size); |
90c08fa03 fdt: Add device t... |
1676 1677 1678 1679 1680 1681 |
if (sizep) *sizep = (phys_size_t)total_size; return 0; } #endif /* CONFIG_NR_DRAM_BANKS */ |
b45122fdf fdt: sandbox: Mov... |
1682 |
#endif /* !USE_HOSTCC */ |