BFE EngineeringandClaude Opus 4.8
270211029d
TRNG ✅ VERIFIED on c8a3: rv1106 trngv1 == rk3588 TRNG_V1 IP; one OF-table entry reusing rk3588_soc_data. /dev/hwrng active, rng_current=rockchip-rng, real HW entropy (c697503d... non-zero). Hardware entropy for the panel. OTP 🔨: rockchip-otp0 nvmem device registers; added rv1106_data (6-clock sbpi layout). First reg_read=rk3588_otp_read timed out ('timeout during read setup'); corrected to px30_otp_read (user-mode OTPC_USER interface = the vendor's rk3568_otp_read sequence). Cell reads re-verify next _b boot. See rng-otp/PORT-DONE.md. dts snapshot refreshed (rng+otp enabled). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
2.0 KiB
TRNG + OTP port (batch A) — 6.18
TRNG (hardware RNG) — ✅ VERIFIED on warden-c8a3 (2026-08-25)
rv1106's rockchip,trngv1 is the same standalone TRNG_V1 IP as rk3588 (identical
register map). Mainline drivers/char/hw_random/rockchip-rng.c already drives it.
Delta: one OF-table entry reusing rk3588_soc_data:
{ .compatible = "rockchip,rv1106-rng", .data = (void *)&rk3588_soc_data },
(The driver grabs clocks via clk_bulk_get_all and treats reset as optional, so
rv1106's clock/reset names need no special handling.) Kconfig
HW_RANDOM_ROCKCHIP=y (already set).
DT (rv1106-warden.dts): override the dtsi rng@ff448000 node —
&rng { compatible = "rockchip,rv1106-rng"; status = "okay"; };
Evidence: /dev/hwrng present, rng_current = rockchip-rng,
dd if=/dev/hwrng bs=16 → c697 503d f9db 6b84 50e4 e1ee f232 b2ae (real HW
entropy, non-zero). Hardware entropy source for the panel's crypto/keys.
OTP / nvmem — 🔨 device registers; read fn corrected, re-verify pending
Mainline drivers/nvmem/rockchip-otp.c gains an rv1106_data + compatible.
Delta:
static const char * const rv1106_otp_clocks[] = {
"usr", "sbpi", "apb", "phy", "arb", "pmc", /* matches DT clock-names */
};
static const struct rockchip_data rv1106_data = {
.size = 0x80,
.clks = rv1106_otp_clocks,
.num_clks = ARRAY_SIZE(rv1106_otp_clocks),
.reg_read = px30_otp_read, /* user-mode OTPC_USER interface */
};
/* OF: { "rockchip,rv1106-otp", &rv1106_data } */
Kconfig NVMEM_ROCKCHIP_OTP=y. DT: &otp { status = "okay"; }; (the dtsi
otp@ff3d0000 node already carries compatible + the 6 clocks/resets).
First try used .reg_read = rk3588_otp_read → timeout during read setup
(rk3588 uses a different addressing path). Corrected to px30_otp_read — the
mainline user-mode OTPC_USER read, the same sequence the vendor 5.10 driver used
for rv1106 (its rk3568_otp_read). Re-verify cell reads on the next _b boot;
rockchip-otp0 nvmem device already registers.