On 3/3/25 08:35, Jamin Lin wrote:
> There is one hw_strap1 register in the SCU (CPU DIE) and another hw_strap1
> register in the SCUIO (IO DIE).
>
> In the "ast2700_a0_resets" function, the hardcoded value "0x00000800" is set in
> SCU hw-strap1 (CPU DIE), and in "ast2700_a0_resets_io" the hardcoded value
> "0x00000504" is set in SCUIO hw-strap1 (IO DIE). Both values cannot be set via
> the SOC layer.
>
> The value of "s->hw_strap1" is set by the SOC layer via the "hw-strap1" property.
> Update the "aspeed_ast2700_scu_reset" function to set the value of "s->hw_strap1"
> in both the SCU and SCUIO hw-strap1 registers.
>
> Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Thanks,
C.
> ---
> hw/misc/aspeed_scu.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/hw/misc/aspeed_scu.c b/hw/misc/aspeed_scu.c
> index 545d004749..0581c744f1 100644
> --- a/hw/misc/aspeed_scu.c
> +++ b/hw/misc/aspeed_scu.c
> @@ -910,7 +910,6 @@ static const MemoryRegionOps aspeed_ast2700_scu_ops = {
> };
>
> static const uint32_t ast2700_a0_resets[ASPEED_AST2700_SCU_NR_REGS] = {
> - [AST2700_HW_STRAP1] = 0x00000800,
> [AST2700_HW_STRAP1_CLR] = 0xFFF0FFF0,
> [AST2700_HW_STRAP1_LOCK] = 0x00000FFF,
> [AST2700_HW_STRAP1_SEC1] = 0x000000FF,
> @@ -940,6 +939,7 @@ static void aspeed_ast2700_scu_reset(DeviceState *dev)
>
> memcpy(s->regs, asc->resets, asc->nr_regs * 4);
> s->regs[AST2700_SILICON_REV] = s->silicon_rev;
> + s->regs[AST2700_HW_STRAP1] = s->hw_strap1;
> }
>
> static void aspeed_2700_scu_class_init(ObjectClass *klass, void *data)
> @@ -1032,7 +1032,6 @@ static const MemoryRegionOps aspeed_ast2700_scuio_ops = {
> };
>
> static const uint32_t ast2700_a0_resets_io[ASPEED_AST2700_SCU_NR_REGS] = {
> - [AST2700_HW_STRAP1] = 0x00000504,
> [AST2700_HW_STRAP1_CLR] = 0xFFF0FFF0,
> [AST2700_HW_STRAP1_LOCK] = 0x00000FFF,
> [AST2700_HW_STRAP1_SEC1] = 0x000000FF,