Lines Matching refs:otp
67 "otp", "apb_pclk", "phy",
74 static int rockchip_otp_reset(struct rockchip_otp *otp)
78 ret = reset_control_assert(otp->rst);
80 dev_err(otp->dev, "failed to assert otp phy %d\n", ret);
86 ret = reset_control_deassert(otp->rst);
88 dev_err(otp->dev, "failed to deassert otp phy %d\n", ret);
95 static int rockchip_otp_wait_status(struct rockchip_otp *otp, u32 flag)
100 ret = readl_poll_timeout_atomic(otp->base + OTPC_INT_STATUS, status,
106 writel(flag, otp->base + OTPC_INT_STATUS);
111 static int rockchip_otp_ecc_enable(struct rockchip_otp *otp, bool enable)
116 otp->base + OTPC_SBPI_CTRL);
118 writel(SBPI_CMD_VALID_MASK | 0x1, otp->base + OTPC_SBPI_CMD_VALID_PRE);
120 otp->base + OTPC_SBPI_CMD0_OFFSET);
122 writel(SBPI_ECC_ENABLE, otp->base + OTPC_SBPI_CMD1_OFFSET);
124 writel(SBPI_ECC_DISABLE, otp->base + OTPC_SBPI_CMD1_OFFSET);
126 writel(SBPI_ENABLE_MASK | SBPI_ENABLE, otp->base + OTPC_SBPI_CTRL);
128 ret = rockchip_otp_wait_status(otp, OTPC_SBPI_DONE);
130 dev_err(otp->dev, "timeout during ecc_enable\n");
138 struct rockchip_otp *otp = context;
142 ret = clk_bulk_prepare_enable(otp->num_clks, otp->clks);
144 dev_err(otp->dev, "failed to prepare/enable clks\n");
148 ret = rockchip_otp_reset(otp);
150 dev_err(otp->dev, "failed to reset otp phy\n");
154 ret = rockchip_otp_ecc_enable(otp, false);
156 dev_err(otp->dev, "rockchip_otp_ecc_enable err\n");
160 writel(OTPC_USE_USER | OTPC_USE_USER_MASK, otp->base + OTPC_USER_CTRL);
164 otp->base + OTPC_USER_ADDR);
166 otp->base + OTPC_USER_ENABLE);
167 ret = rockchip_otp_wait_status(otp, OTPC_USER_DONE);
169 dev_err(otp->dev, "timeout during read setup\n");
172 *buf++ = readb(otp->base + OTPC_USER_Q);
176 writel(0x0 | OTPC_USE_USER_MASK, otp->base + OTPC_USER_CTRL);
178 clk_bulk_disable_unprepare(otp->num_clks, otp->clks);
184 .name = "rockchip-otp",
198 .compatible = "rockchip,px30-otp",
202 .compatible = "rockchip,rk3308-otp",
212 struct rockchip_otp *otp;
223 otp = devm_kzalloc(&pdev->dev, sizeof(struct rockchip_otp),
225 if (!otp)
228 otp->dev = dev;
229 otp->base = devm_platform_ioremap_resource(pdev, 0);
230 if (IS_ERR(otp->base))
231 return PTR_ERR(otp->base);
233 otp->num_clks = ARRAY_SIZE(rockchip_otp_clocks);
234 otp->clks = devm_kcalloc(dev, otp->num_clks,
235 sizeof(*otp->clks), GFP_KERNEL);
236 if (!otp->clks)
239 for (i = 0; i < otp->num_clks; ++i)
240 otp->clks[i].id = rockchip_otp_clocks[i];
242 ret = devm_clk_bulk_get(dev, otp->num_clks, otp->clks);
246 otp->rst = devm_reset_control_get(dev, "phy");
247 if (IS_ERR(otp->rst))
248 return PTR_ERR(otp->rst);
251 otp_config.priv = otp;
261 .name = "rockchip-otp",