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https://xff.cz/git/u-boot/
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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
147 lines
2.8 KiB
C
147 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com/
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* Dave Gerlach <d-gerlach@ti.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <soc.h>
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#include <asm/arch/hardware.h>
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#include <asm/io.h>
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struct soc_ti_k3_plat {
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const char *family;
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const char *revision;
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};
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static const char *get_family_string(u32 idreg)
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{
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const char *family;
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u32 soc;
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soc = (idreg & JTAG_ID_PARTNO_MASK) >> JTAG_ID_PARTNO_SHIFT;
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switch (soc) {
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case JTAG_ID_PARTNO_AM65X:
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family = "AM65X";
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break;
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case JTAG_ID_PARTNO_J721E:
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family = "J721E";
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break;
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case JTAG_ID_PARTNO_J7200:
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family = "J7200";
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break;
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case JTAG_ID_PARTNO_AM64X:
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family = "AM64X";
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break;
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case JTAG_ID_PARTNO_J721S2:
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family = "J721S2";
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break;
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case JTAG_ID_PARTNO_AM62X:
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family = "AM62X";
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break;
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case JTAG_ID_PARTNO_AM62AX:
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family = "AM62AX";
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break;
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case JTAG_ID_PARTNO_J784S4:
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family = "J784S4";
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break;
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case JTAG_ID_PARTNO_AM62PX:
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family = "AM62PX";
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break;
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default:
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family = "Unknown Silicon";
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};
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return family;
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}
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static char *j721e_rev_string_map[] = {
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"1.0", "1.1",
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};
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static char *typical_rev_string_map[] = {
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"1.0", "2.0", "3.0",
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};
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static const char *get_rev_string(u32 idreg)
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{
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u32 rev;
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u32 soc;
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rev = (idreg & JTAG_ID_VARIANT_MASK) >> JTAG_ID_VARIANT_SHIFT;
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soc = (idreg & JTAG_ID_PARTNO_MASK) >> JTAG_ID_PARTNO_SHIFT;
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switch (soc) {
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case JTAG_ID_PARTNO_J721E:
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if (rev >= ARRAY_SIZE(j721e_rev_string_map))
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goto bail;
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return j721e_rev_string_map[rev];
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default:
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if (rev >= ARRAY_SIZE(typical_rev_string_map))
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goto bail;
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return typical_rev_string_map[rev];
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};
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bail:
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return "Unknown Revision";
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}
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static int soc_ti_k3_get_family(struct udevice *dev, char *buf, int size)
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{
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struct soc_ti_k3_plat *plat = dev_get_plat(dev);
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snprintf(buf, size, "%s", plat->family);
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return 0;
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}
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static int soc_ti_k3_get_revision(struct udevice *dev, char *buf, int size)
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{
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struct soc_ti_k3_plat *plat = dev_get_plat(dev);
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snprintf(buf, size, "SR%s", plat->revision);
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return 0;
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}
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static const struct soc_ops soc_ti_k3_ops = {
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.get_family = soc_ti_k3_get_family,
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.get_revision = soc_ti_k3_get_revision,
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};
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int soc_ti_k3_probe(struct udevice *dev)
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{
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struct soc_ti_k3_plat *plat = dev_get_plat(dev);
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u32 idreg;
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void *idreg_addr;
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idreg_addr = dev_read_addr_ptr(dev);
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if (!idreg_addr)
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return -EINVAL;
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idreg = readl(idreg_addr);
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plat->family = get_family_string(idreg);
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plat->revision = get_rev_string(idreg);
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return 0;
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}
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static const struct udevice_id soc_ti_k3_ids[] = {
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{ .compatible = "ti,am654-chipid" },
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{ }
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};
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U_BOOT_DRIVER(soc_ti_k3) = {
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.name = "soc_ti_k3",
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.id = UCLASS_SOC,
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.ops = &soc_ti_k3_ops,
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.of_match = soc_ti_k3_ids,
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.probe = soc_ti_k3_probe,
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.plat_auto = sizeof(struct soc_ti_k3_plat),
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};
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