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platform: generic: Modify platform ops instead of using hooks

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Switch all existing platform overrides to use the helper pattern instead
of the platform hooks. After this commit, only the .match_table and
.init members of struct platform_override are used.

There are two minor behavioral differences:
 - For Allwinner D1, fdt_add_cpu_idle_states() is now called before the
   body of generic_final_init(). This should have no functional impact.
 - For StarFive JH7110, if the /chosen/starfive,boot-hart-id property is
   missing, the code now falls back to using generic_coldboot_harts,
   instead of accepting any hart.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20250325234342.711447-7-samuel.holland@sifive.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Samuel Holland
2025-03-25 16:43:29 -07:00
committed by Anup Patel
parent 2489e1421d
commit b353af63e2
12 changed files with 160 additions and 80 deletions
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30
platform/generic/thead/thead-generic.c
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@@ -19,24 +19,35 @@ struct thead_generic_quirks {
u64 errata;
};
static int thead_generic_early_init(bool cold_boot, const void *fdt,
const struct fdt_match *match)
static int thead_tlb_flush_early_init(bool cold_boot)
{
const struct thead_generic_quirks *quirks = match->data;
thead_register_tlb_flush_trap_handler();
if (quirks->errata & THEAD_QUIRK_ERRATA_TLB_FLUSH)
thead_register_tlb_flush_trap_handler();
return generic_early_init(cold_boot);
}
static int thead_pmu_extensions_init(struct sbi_hart_features *hfeatures)
{
int rc;
rc = generic_extensions_init(hfeatures);
if (rc)
return rc;
thead_c9xx_register_pmu_device();
return 0;
}
static int thead_generic_extensions_init(const struct fdt_match *match,
struct sbi_hart_features *hfeatures)
static int thead_generic_platform_init(const void *fdt, int nodeoff,
const struct fdt_match *match)
{
const struct thead_generic_quirks *quirks = match->data;
if (quirks->errata & THEAD_QUIRK_ERRATA_TLB_FLUSH)
generic_platform_ops.early_init = thead_tlb_flush_early_init;
if (quirks->errata & THEAD_QUIRK_ERRATA_THEAD_PMU)
thead_c9xx_register_pmu_device();
generic_platform_ops.extensions_init = thead_pmu_extensions_init;
return 0;
}
@@ -62,6 +73,5 @@ static const struct fdt_match thead_generic_match[] = {
const struct platform_override thead_generic = {
.match_table = thead_generic_match,
.early_init = thead_generic_early_init,
.extensions_init = thead_generic_extensions_init,
.init = thead_generic_platform_init,
};