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457cc59795
This allows cleanly backporting more recent stuff that's important for OpenWrt. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
103 lines
3.5 KiB
Diff
103 lines
3.5 KiB
Diff
From 5a1bea2a2572ce5eb4bdcf432a6929681ee381f2 Mon Sep 17 00:00:00 2001
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From: Rajendra Nayak <rnayak@codeaurora.org>
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Date: Tue, 30 Mar 2021 12:12:41 +0100
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Subject: [PATCH] nvmem: qfprom: Add support for fuse blowing on sc7280
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Handle the differences across LDO voltage needed for blowing fuses,
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and the blow timer value, identified using a minor version of 15
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on sc7280.
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Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
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Signed-off-by: Ravi Kumar Bokka <rbokka@codeaurora.org>
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Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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Link: https://lore.kernel.org/r/20210330111241.19401-11-srinivas.kandagatla@linaro.org
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/nvmem/qfprom.c | 27 +++++++++++++++++++++++++--
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1 file changed, 25 insertions(+), 2 deletions(-)
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--- a/drivers/nvmem/qfprom.c
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+++ b/drivers/nvmem/qfprom.c
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@@ -45,11 +45,13 @@ MODULE_PARM_DESC(read_raw_data, "Read ra
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* @qfprom_blow_timer_value: The timer value of qfprom when doing efuse blow.
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* @qfprom_blow_set_freq: The frequency required to set when we start the
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* fuse blowing.
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+ * @qfprom_blow_uV: LDO voltage to be set when doing efuse blow
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*/
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struct qfprom_soc_data {
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u32 accel_value;
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u32 qfprom_blow_timer_value;
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u32 qfprom_blow_set_freq;
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+ int qfprom_blow_uV;
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};
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/**
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@@ -111,6 +113,15 @@ static const struct qfprom_soc_compatibl
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.nkeepout = ARRAY_SIZE(sc7180_qfprom_keepout)
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};
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+static const struct nvmem_keepout sc7280_qfprom_keepout[] = {
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+ {.start = 0x128, .end = 0x148},
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+ {.start = 0x238, .end = 0x248}
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+};
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+
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+static const struct qfprom_soc_compatible_data sc7280_qfprom = {
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+ .keepout = sc7280_qfprom_keepout,
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+ .nkeepout = ARRAY_SIZE(sc7280_qfprom_keepout)
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+};
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/**
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* qfprom_disable_fuse_blowing() - Undo enabling of fuse blowing.
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* @priv: Our driver data.
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@@ -168,6 +179,7 @@ static int qfprom_enable_fuse_blowing(co
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struct qfprom_touched_values *old)
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{
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int ret;
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+ int qfprom_blow_uV = priv->soc_data->qfprom_blow_uV;
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ret = clk_prepare_enable(priv->secclk);
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if (ret) {
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@@ -187,9 +199,9 @@ static int qfprom_enable_fuse_blowing(co
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* a rail shared do don't specify a max--regulator constraints
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* will handle.
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*/
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- ret = regulator_set_voltage(priv->vcc, 1800000, INT_MAX);
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+ ret = regulator_set_voltage(priv->vcc, qfprom_blow_uV, INT_MAX);
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if (ret) {
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- dev_err(priv->dev, "Failed to set 1.8 voltage\n");
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+ dev_err(priv->dev, "Failed to set %duV\n", qfprom_blow_uV);
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goto err_clk_rate_set;
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}
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@@ -311,6 +323,14 @@ static const struct qfprom_soc_data qfpr
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.accel_value = 0xD10,
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.qfprom_blow_timer_value = 25,
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.qfprom_blow_set_freq = 4800000,
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+ .qfprom_blow_uV = 1800000,
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+};
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+
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+static const struct qfprom_soc_data qfprom_7_15_data = {
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+ .accel_value = 0xD08,
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+ .qfprom_blow_timer_value = 24,
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+ .qfprom_blow_set_freq = 4800000,
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+ .qfprom_blow_uV = 1900000,
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};
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static int qfprom_probe(struct platform_device *pdev)
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@@ -379,6 +399,8 @@ static int qfprom_probe(struct platform_
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if (major_version == 7 && minor_version == 8)
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priv->soc_data = &qfprom_7_8_data;
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+ if (major_version == 7 && minor_version == 15)
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+ priv->soc_data = &qfprom_7_15_data;
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priv->vcc = devm_regulator_get(&pdev->dev, "vcc");
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if (IS_ERR(priv->vcc))
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@@ -405,6 +427,7 @@ static int qfprom_probe(struct platform_
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static const struct of_device_id qfprom_of_match[] = {
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{ .compatible = "qcom,qfprom",},
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{ .compatible = "qcom,sc7180-qfprom", .data = &sc7180_qfprom},
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+ { .compatible = "qcom,sc7280-qfprom", .data = &sc7280_qfprom},
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{/* sentinel */},
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};
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MODULE_DEVICE_TABLE(of, qfprom_of_match);
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