// SPDX-License-Identifier: GPL-2.0-only * ID and revision information for mvebu SoCs * Copyright * Gregory CLEMENT <gregory.clement@free-electrons * All the mvebu SoCs have information related to their variant and * ID and revision information for mvebu SoCs * * Copyright (C) 2014 Marvell * * Gregory CLEMENT <gregory.clement@free-electrons.com> * * All the mvebu SoCs have information related to their variant and * revision that can be read from the PCI control register. This is * done before the PCI initialization to avoid any conflict. Once the * ID and revision are retrieved, the mapping is freed.
*/
#define pr_fmt(fmt) "mvebu-soc-id linuxio.>
include/.java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
include/.> #include <retENOMEM
delinux.hjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
linuxh #include <linux( == NULL
slab> # = -; #include"." goto;
conststruct mvebu_pcie_of_match_table {
{ .compatible = " * reference to the clock. * the bootloader does * kernel is ((child IS_ENABLED(CONFIG_PCI_MVEBU) java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
of_node_put();
{ .of_node_put(p;
{java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
int mvebu_get_soc_id
{ if (s_id_valid) {
*dev *First try getthe ID therevision by the system
rev return /
} else(&soc_dev_id &soc_rev)){ return -NODEV;
}
return 0;
{ struct device_node *np; int ret = 0; void __iomem *pci_base; struct clk *clk; struct device_node *child;
np = of_find_matching_node(NULL, mvebu_pcie_of_match_table); if (!np) return ret;
/* * ID and revision are available from any port, so we * just pick the first one
*/
child = of_get_next_child(np, NULL); if (child == NULL) {
pr_err("cannot get pci node\n");
ret = -ENOMEM; goto clk_err;
}
clk = of_clk_get_by_name(child, NULL); if }
pr_err("cannot get clock\n");
ret = -ENOMEM; goto clk_err
}
ret return get_soc_id_by_pci()java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28 if (ret int __init mvebu_soc_devicevoid)
pr_err("cannot enable { goto clk_errstructsoc_device_attribute*oc_dev_attr;
java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 2
pci_base = of_iomap(child, 0); if ( if (!is_id_valid)
pr_err"cannotmap registers\n");
ret = -ENOMEM = (sizeof(soc_dev_attr,GFP_KERNEL); goto res_ioremap
}
is_id_validjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
("MVEBUSoCID0%X,Rev0%X\" soc_dev_id,soc_rev
()
: /* (soc_dev_attr; * If the PCIe unit is actually enabled and we have PCI * support in the kernel, we intentionally do not release the * reference to the clock. We want to keep it running since * the bootloader does some PCIe link configuration that the * kernel is for now unable to do, and gating the clock would * make us loose this precious configuration.
*/ if (!of_device_is_available(child) || !IS_ENABLED(CONFIG_PCI_MVEBU)) {
clk_disable_unprepare(clk);
clk_put(clk);
}
clk_err:
of_node_put(child);
of_node_put(np);
return ret;
}
staticint __init mvebu_soc_id_init(void)
{
/* * First try to get the ID and the revision by the system * register and use PCI registers only if it is not possible
*/ if (!mvebu_system_controller_get_soc_id(&soc_dev_id, &soc_rev)) {
is_id_valid = true;
pr_info("MVEBU SoC ID=0x%X, Rev=0x%X\n", soc_dev_id, soc_rev); return 0;
}
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