1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
9  * 1. Redistributions of source code must retain the above copyright
48 #define	 SBPI_ENABLE			1
59 #define	 OTPC_USER			1
64 #define	 OTPC_USER_FSM_ENABLE		1
75 	{"rockchip,rk3568-otp",	1},
89 	while (!(bus_read_4(sc->mem, OTPC_SBPI_INT_STATUS) & status)) {  in rk_otp_wait()
91 		if (--retry == 0)  in rk_otp_wait()
96 	bus_write_4(sc->mem, OTPC_SBPI_INT_STATUS, status);  in rk_otp_wait()
104 	bus_write_4(sc->mem, OTPC_SBPI_CTRL,  in rk_otp_ecc()
106 	bus_write_4(sc->mem, OTPC_SBPI_CMD_VALID_PRE,  in rk_otp_ecc()
108 	bus_write_4(sc->mem, OTPC_SBPI_CMD0_OFFSET,  in rk_otp_ecc()
111 		bus_write_4(sc->mem, OTPC_SBPI_CMD1_OFFSET, SBPI_ECC_ENABLE);  in rk_otp_ecc()
113 		bus_write_4(sc->mem, OTPC_SBPI_CMD1_OFFSET, SBPI_ECC_DISABLE);  in rk_otp_ecc()
114 	bus_write_4(sc->mem, OTPC_SBPI_CTRL, SBPI_ENABLE_MASK | SBPI_ENABLE);  in rk_otp_ecc()
126 	if (!sc->mem)  in rk_otp_read()
129 	if ((error = rk_otp_ecc(sc, 1))) {  in rk_otp_read()
130 		device_printf(dev, "timeout waiting for OTP ECC status\n");  in rk_otp_read()
134 	bus_write_4(sc->mem, OTPC_USER_CTRL, OTPC_USER | OTPC_USER_MASK);  in rk_otp_read()
136 	while (size--) {  in rk_otp_read()
137 		bus_write_4(sc->mem, OTPC_USER_ADDR,  in rk_otp_read()
139 		bus_write_4(sc->mem, OTPC_USER_ENABLE,  in rk_otp_read()
143 			device_printf(dev, "timeout waiting for OTP data\n");  in rk_otp_read()
146 		*buffer++ = bus_read_4(sc->mem, OTPC_USER_Q);  in rk_otp_read()
148 	bus_write_4(sc->mem, OTPC_USER_CTRL, OTPC_USER_MASK);  in rk_otp_read()
159 	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)  in rk_otp_probe()
161 	device_set_desc(dev, "RockChip OTP");  in rk_otp_probe()
171 	sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);  in rk_otp_attach()
172 	if (!sc->mem) {  in rk_otp_attach()