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https://github.com/brain-hackers/u-boot-brain
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caa4daa2ae
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
100 lines
2.0 KiB
C
100 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
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* Scott McNutt <smcnutt@psyent.com>
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*/
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#include <common.h>
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#include <command.h>
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#include <dm.h>
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#include <errno.h>
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#include <misc.h>
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#include <linux/time.h>
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#include <asm/io.h>
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struct altera_sysid_regs {
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u32 id; /* The system build id */
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u32 timestamp; /* Timestamp */
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};
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struct altera_sysid_platdata {
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struct altera_sysid_regs *regs;
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};
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void display_sysid(void)
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{
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struct udevice *dev;
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u32 sysid[2];
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struct tm t;
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char asc[32];
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time_t stamp;
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int ret;
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/* the first misc device will be used */
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ret = uclass_first_device_err(UCLASS_MISC, &dev);
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if (ret)
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return;
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ret = misc_read(dev, 0, &sysid, sizeof(sysid));
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if (ret < 0)
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return;
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stamp = sysid[1];
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localtime_r(&stamp, &t);
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asctime_r(&t, asc);
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printf("SYSID: %08x, %s", sysid[0], asc);
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}
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int do_sysid(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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display_sysid();
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return 0;
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}
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U_BOOT_CMD(
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sysid, 1, 1, do_sysid,
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"display Nios-II system id",
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""
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);
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static int altera_sysid_read(struct udevice *dev,
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int offset, void *buf, int size)
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{
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struct altera_sysid_platdata *plat = dev->plat;
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struct altera_sysid_regs *const regs = plat->regs;
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u32 *sysid = buf;
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sysid[0] = readl(®s->id);
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sysid[1] = readl(®s->timestamp);
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return 0;
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}
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static int altera_sysid_ofdata_to_platdata(struct udevice *dev)
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{
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struct altera_sysid_platdata *plat = dev_get_platdata(dev);
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plat->regs = map_physmem(dev_read_addr(dev),
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sizeof(struct altera_sysid_regs),
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MAP_NOCACHE);
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return 0;
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}
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static const struct misc_ops altera_sysid_ops = {
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.read = altera_sysid_read,
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};
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static const struct udevice_id altera_sysid_ids[] = {
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{ .compatible = "altr,sysid-1.0" },
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{}
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};
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U_BOOT_DRIVER(altera_sysid) = {
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.name = "altera_sysid",
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.id = UCLASS_MISC,
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.of_match = altera_sysid_ids,
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.ofdata_to_platdata = altera_sysid_ofdata_to_platdata,
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.plat_auto = sizeof(struct altera_sysid_platdata),
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.ops = &altera_sysid_ops,
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};
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