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kernel: backport v6.6 nvmem changes

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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 52c365f055)
This commit is contained in:
Rafał Miłecki 2023-08-31 00:28:58 +02:00
parent b649b0bf71
commit 066971615f
21 changed files with 790 additions and 1 deletions
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36
target/linux/generic/backport-5.15/819-v6.6-0001-nvmem-sunxi_sid-Convert-to-devm_platform_ioremap_res.patch Normal file
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@ -0,0 +1,36 @@
From 9ccfcbeb8f32ff89e99b36cb9cdebaa0d1b44ed1 Mon Sep 17 00:00:00 2001
From: Yangtao Li <frank.li@vivo.com>
Date: Wed, 23 Aug 2023 14:27:24 +0100
Subject: [PATCH] nvmem: sunxi_sid: Convert to devm_platform_ioremap_resource()
Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230823132744.350618-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/nvmem/sunxi_sid.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
--- a/drivers/nvmem/sunxi_sid.c
+++ b/drivers/nvmem/sunxi_sid.c
@@ -125,7 +125,6 @@ static int sun8i_sid_read_by_reg(void *c
static int sunxi_sid_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct resource *res;
struct nvmem_config *nvmem_cfg;
struct nvmem_device *nvmem;
struct sunxi_sid *sid;
@@ -142,8 +141,7 @@ static int sunxi_sid_probe(struct platfo
return -EINVAL;
sid->value_offset = cfg->value_offset;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- sid->base = devm_ioremap_resource(dev, res);
+ sid->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(sid->base))
return PTR_ERR(sid->base);

30
target/linux/generic/backport-5.15/819-v6.6-0002-nvmem-brcm_nvram-Use-devm_platform_get_and_ioremap_r.patch Normal file
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@ -0,0 +1,30 @@
From cfadd0e7d9225566f320bc4dc716682be910be6c Mon Sep 17 00:00:00 2001
From: Yangtao Li <frank.li@vivo.com>
Date: Wed, 23 Aug 2023 14:27:25 +0100
Subject: [PATCH] nvmem: brcm_nvram: Use
devm_platform_get_and_ioremap_resource()
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230823132744.350618-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/nvmem/brcm_nvram.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/nvmem/brcm_nvram.c
+++ b/drivers/nvmem/brcm_nvram.c
@@ -159,8 +159,7 @@ static int brcm_nvram_probe(struct platf
return -ENOMEM;
priv->dev = dev;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- priv->base = devm_ioremap_resource(dev, res);
+ priv->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);

34
target/linux/generic/backport-5.15/819-v6.6-0003-nvmem-lpc18xx_otp-Convert-to-devm_platform_ioremap_r.patch Normal file
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@ -0,0 +1,34 @@
From 0b49178e2b6b4aac3c7fa3ce8d8c02208a13b988 Mon Sep 17 00:00:00 2001
From: Yangtao Li <frank.li@vivo.com>
Date: Wed, 23 Aug 2023 14:27:26 +0100
Subject: [PATCH] nvmem: lpc18xx_otp: Convert to
devm_platform_ioremap_resource()
Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230823132744.350618-5-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/nvmem/lpc18xx_otp.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
--- a/drivers/nvmem/lpc18xx_otp.c
+++ b/drivers/nvmem/lpc18xx_otp.c
@@ -68,14 +68,12 @@ static int lpc18xx_otp_probe(struct plat
{
struct nvmem_device *nvmem;
struct lpc18xx_otp *otp;
- struct resource *res;
otp = devm_kzalloc(&pdev->dev, sizeof(*otp), GFP_KERNEL);
if (!otp)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- otp->base = devm_ioremap_resource(&pdev->dev, res);
+ otp->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(otp->base))
return PTR_ERR(otp->base);

36
target/linux/generic/backport-5.15/819-v6.6-0004-nvmem-meson-mx-efuse-Convert-to-devm_platform_iorema.patch Normal file
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@ -0,0 +1,36 @@
From 0a223a097709b99a0ba738d6be5b4f52c04ffb64 Mon Sep 17 00:00:00 2001
From: Yangtao Li <frank.li@vivo.com>
Date: Wed, 23 Aug 2023 14:27:27 +0100
Subject: [PATCH] nvmem: meson-mx-efuse: Convert to
devm_platform_ioremap_resource()
Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230823132744.350618-6-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/nvmem/meson-mx-efuse.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
--- a/drivers/nvmem/meson-mx-efuse.c
+++ b/drivers/nvmem/meson-mx-efuse.c
@@ -194,7 +194,6 @@ static int meson_mx_efuse_probe(struct p
{
const struct meson_mx_efuse_platform_data *drvdata;
struct meson_mx_efuse *efuse;
- struct resource *res;
drvdata = of_device_get_match_data(&pdev->dev);
if (!drvdata)
@@ -204,8 +203,7 @@ static int meson_mx_efuse_probe(struct p
if (!efuse)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- efuse->base = devm_ioremap_resource(&pdev->dev, res);
+ efuse->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(efuse->base))
return PTR_ERR(efuse->base);

31
target/linux/generic/backport-5.15/819-v6.6-0005-nvmem-rockchip-efuse-Use-devm_platform_get_and_iorem.patch Normal file
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@ -0,0 +1,31 @@
From 94904db28db49ac8fbb2a273d25156db26a3a985 Mon Sep 17 00:00:00 2001
From: Yangtao Li <frank.li@vivo.com>
Date: Wed, 23 Aug 2023 14:27:28 +0100
Subject: [PATCH] nvmem: rockchip-efuse: Use
devm_platform_get_and_ioremap_resource()
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230823132744.350618-7-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/nvmem/rockchip-efuse.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/nvmem/rockchip-efuse.c
+++ b/drivers/nvmem/rockchip-efuse.c
@@ -267,8 +267,7 @@ static int rockchip_efuse_probe(struct p
if (!efuse)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- efuse->base = devm_ioremap_resource(dev, res);
+ efuse->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(efuse->base))
return PTR_ERR(efuse->base);

30
target/linux/generic/backport-5.15/819-v6.6-0006-nvmem-stm32-romem-Use-devm_platform_get_and_ioremap_.patch Normal file
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@ -0,0 +1,30 @@
From 0a4a8c0d238fec1fa4b85591524ef42ad261cb97 Mon Sep 17 00:00:00 2001
From: Yangtao Li <frank.li@vivo.com>
Date: Wed, 23 Aug 2023 14:27:29 +0100
Subject: [PATCH] nvmem: stm32-romem: Use
devm_platform_get_and_ioremap_resource()
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230823132744.350618-8-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/nvmem/stm32-romem.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/nvmem/stm32-romem.c
+++ b/drivers/nvmem/stm32-romem.c
@@ -196,8 +196,7 @@ static int stm32_romem_probe(struct plat
if (!priv)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- priv->base = devm_ioremap_resource(dev, res);
+ priv->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);

59
target/linux/generic/backport-5.15/819-v6.6-0007-nvmem-qfprom-do-some-cleanup.patch Normal file
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@ -0,0 +1,59 @@
From 0bc0d6dc2a9a05ae6729b4622f09782d9f230815 Mon Sep 17 00:00:00 2001
From: Yangtao Li <frank.li@vivo.com>
Date: Wed, 23 Aug 2023 14:27:30 +0100
Subject: [PATCH] nvmem: qfprom: do some cleanup
Use devm_platform_ioremap_resource() and
devm_platform_get_and_ioremap_resource() to simplify code.
BTW convert to use dev_err_probe() instead of open it.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230823132744.350618-9-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/nvmem/qfprom.c | 17 +++++------------
1 file changed, 5 insertions(+), 12 deletions(-)
--- a/drivers/nvmem/qfprom.c
+++ b/drivers/nvmem/qfprom.c
@@ -374,8 +374,7 @@ static int qfprom_probe(struct platform_
return -ENOMEM;
/* The corrected section is always provided */
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- priv->qfpcorrected = devm_ioremap_resource(dev, res);
+ priv->qfpcorrected = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(priv->qfpcorrected))
return PTR_ERR(priv->qfpcorrected);
@@ -402,12 +401,10 @@ static int qfprom_probe(struct platform_
priv->qfpraw = devm_ioremap_resource(dev, res);
if (IS_ERR(priv->qfpraw))
return PTR_ERR(priv->qfpraw);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
- priv->qfpconf = devm_ioremap_resource(dev, res);
+ priv->qfpconf = devm_platform_ioremap_resource(pdev, 2);
if (IS_ERR(priv->qfpconf))
return PTR_ERR(priv->qfpconf);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 3);
- priv->qfpsecurity = devm_ioremap_resource(dev, res);
+ priv->qfpsecurity = devm_platform_ioremap_resource(pdev, 3);
if (IS_ERR(priv->qfpsecurity))
return PTR_ERR(priv->qfpsecurity);
@@ -427,12 +424,8 @@ static int qfprom_probe(struct platform_
return PTR_ERR(priv->vcc);
priv->secclk = devm_clk_get(dev, "core");
- if (IS_ERR(priv->secclk)) {
- ret = PTR_ERR(priv->secclk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "Error getting clock: %d\n", ret);
- return ret;
- }
+ if (IS_ERR(priv->secclk))
+ return dev_err_probe(dev, PTR_ERR(priv->secclk), "Error getting clock\n");
/* Only enable writing if we have SoC data. */
if (priv->soc_data)

29
target/linux/generic/backport-5.15/819-v6.6-0008-nvmem-uniphier-Use-devm_platform_get_and_ioremap_res.patch Normal file
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@ -0,0 +1,29 @@
From 6ac41c556e22a0d7d267c9b9d48681d73af4b368 Mon Sep 17 00:00:00 2001
From: Yangtao Li <frank.li@vivo.com>
Date: Wed, 23 Aug 2023 14:27:31 +0100
Subject: [PATCH] nvmem: uniphier: Use devm_platform_get_and_ioremap_resource()
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230823132744.350618-10-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/nvmem/uniphier-efuse.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/nvmem/uniphier-efuse.c
+++ b/drivers/nvmem/uniphier-efuse.c
@@ -41,8 +41,7 @@ static int uniphier_efuse_probe(struct p
if (!priv)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- priv->base = devm_ioremap_resource(dev, res);
+ priv->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);

133
target/linux/generic/backport-5.15/819-v6.6-0009-nvmem-add-new-NXP-QorIQ-eFuse-driver.patch Normal file
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@ -0,0 +1,133 @@
From c8efcf7a86ebf2ff48584d270b3070a7075bc345 Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard@bit42.se>
Date: Mon, 10 Apr 2023 10:20:51 +0200
Subject: [PATCH] nvmem: add new NXP QorIQ eFuse driver
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Add SFP (Security Fuse Processor) read support for NXP (Freescale)
QorIQ series SOC's.
This patch adds support for the T1023 SOC using the SFP offset from
the existing T1023 device tree. In theory this should also work for
T1024, T1014 and T1013 which uses the same SFP base offset.
Signed-off-by: Richard Alpe <richard@bit42.se>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
drivers/nvmem/Kconfig | 12 ++++++
drivers/nvmem/Makefile | 2 +
drivers/nvmem/qoriq-efuse.c | 78 +++++++++++++++++++++++++++++++++++++
3 files changed, 92 insertions(+)
create mode 100644 drivers/nvmem/qoriq-efuse.c
--- a/drivers/nvmem/Kconfig
+++ b/drivers/nvmem/Kconfig
@@ -392,4 +392,16 @@ config NVMEM_ZYNQMP
If sure, say yes. If unsure, say no.
+config NVMEM_QORIQ_EFUSE
+ tristate "NXP QorIQ eFuse support"
+ depends on PPC_85xx || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This driver provides read support for the eFuses (SFP) on NXP QorIQ
+ series SoC's. This includes secure boot settings, the globally unique
+ NXP ID 'FUIDR' and the OEM unique ID 'OUIDR'.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem_qoriq_efuse.
+
endif
--- a/drivers/nvmem/Makefile
+++ b/drivers/nvmem/Makefile
@@ -77,3 +77,5 @@ obj-$(CONFIG_NVMEM_VF610_OCOTP) += nvme
nvmem-vf610-ocotp-y := vf610-ocotp.o
obj-$(CONFIG_NVMEM_ZYNQMP) += nvmem_zynqmp_nvmem.o
nvmem_zynqmp_nvmem-y := zynqmp_nvmem.o
+obj-$(CONFIG_NVMEM_QORIQ_EFUSE) += nvmem-qoriq-efuse.o
+nvmem-qoriq-efuse-y := qoriq-efuse.o
--- /dev/null
+++ b/drivers/nvmem/qoriq-efuse.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 Westermo Network Technologies AB
+ */
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/nvmem-provider.h>
+#include <linux/platform_device.h>
+
+struct qoriq_efuse_priv {
+ void __iomem *base;
+};
+
+static int qoriq_efuse_read(void *context, unsigned int offset, void *val,
+ size_t bytes)
+{
+ struct qoriq_efuse_priv *priv = context;
+
+ /* .stride = 4 so offset is guaranteed to be aligned */
+ __ioread32_copy(val, priv->base + offset, bytes / 4);
+
+ /* Ignore trailing bytes (there shouldn't be any) */
+
+ return 0;
+}
+
+static int qoriq_efuse_probe(struct platform_device *pdev)
+{
+ struct nvmem_config config = {
+ .dev = &pdev->dev,
+ .read_only = true,
+ .reg_read = qoriq_efuse_read,
+ .stride = sizeof(u32),
+ .word_size = sizeof(u32),
+ .name = "qoriq_efuse_read",
+ .id = NVMEM_DEVID_AUTO,
+ .root_only = true,
+ };
+ struct qoriq_efuse_priv *priv;
+ struct nvmem_device *nvmem;
+ struct resource *res;
+
+ priv = devm_kzalloc(config.dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+ if (IS_ERR(priv->base))
+ return PTR_ERR(priv->base);
+
+ config.size = resource_size(res);
+ config.priv = priv;
+ nvmem = devm_nvmem_register(config.dev, &config);
+
+ return PTR_ERR_OR_ZERO(nvmem);
+}
+
+static const struct of_device_id qoriq_efuse_of_match[] = {
+ { .compatible = "fsl,t1023-sfp", },
+ {/* sentinel */},
+};
+MODULE_DEVICE_TABLE(of, qoriq_efuse_of_match);
+
+static struct platform_driver qoriq_efuse_driver = {
+ .probe = qoriq_efuse_probe,
+ .driver = {
+ .name = "qoriq-efuse",
+ .of_match_table = qoriq_efuse_of_match,
+ },
+};
+module_platform_driver(qoriq_efuse_driver);
+
+MODULE_AUTHOR("Richard Alpe <richard.alpe@bit42.se>");
+MODULE_DESCRIPTION("NXP QorIQ Security Fuse Processor (SFP) Reader");
+MODULE_LICENSE("GPL");

37
target/linux/generic/backport-5.15/819-v6.6-0011-nvmem-Kconfig-Fix-typo-drive-driver.patch Normal file
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@ -0,0 +1,37 @@
From 9d53d595f688c9837e88a919229cc61a165c7b9e Mon Sep 17 00:00:00 2001
From: Diederik de Haas <didi.debian@cknow.org>
Date: Mon, 24 Jul 2023 13:36:22 +0200
Subject: [PATCH] nvmem: Kconfig: Fix typo "drive" -> "driver"
Fix typo where "driver" was meant instead of "drive".
While at it, also capitalize "OTP".
Signed-off-by: Diederik de Haas <didi.debian@cknow.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
drivers/nvmem/Kconfig | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/nvmem/Kconfig
+++ b/drivers/nvmem/Kconfig
@@ -247,7 +247,7 @@ config NVMEM_ROCKCHIP_EFUSE
depends on ARCH_ROCKCHIP || COMPILE_TEST
depends on HAS_IOMEM
help
- This is a simple drive to dump specified values of Rockchip SoC
+ This is a simple driver to dump specified values of Rockchip SoC
from eFuse, such as cpu-leakage.
This driver can also be built as a module. If so, the module
@@ -258,8 +258,8 @@ config NVMEM_ROCKCHIP_OTP
depends on ARCH_ROCKCHIP || COMPILE_TEST
depends on HAS_IOMEM
help
- This is a simple drive to dump specified values of Rockchip SoC
- from otp, such as cpu-leakage.
+ This is a simple driver to dump specified values of Rockchip SoC
+ from OTP, such as cpu-leakage.
This driver can also be built as a module. If so, the module
will be called nvmem_rockchip_otp.

152
target/linux/generic/backport-5.15/819-v6.6-0012-nvmem-sec-qfprom-Add-Qualcomm-secure-QFPROM-support.patch Normal file
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@ -0,0 +1,152 @@
From 0a9ec38c47c1ca4528aa058e2b9ea61901a7e632 Mon Sep 17 00:00:00 2001
From: Komal Bajaj <quic_kbajaj@quicinc.com>
Date: Tue, 1 Aug 2023 12:10:25 +0530
Subject: [PATCH] nvmem: sec-qfprom: Add Qualcomm secure QFPROM support
For some of the Qualcomm SoC's, it is possible that
some of the fuse regions or entire qfprom region is
protected from non-secure access. In such situations,
the OS will have to use secure calls to read the region.
With that motivation, add secure qfprom driver.
Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
drivers/nvmem/Kconfig | 13 ++++++
drivers/nvmem/Makefile | 2 +
drivers/nvmem/sec-qfprom.c | 96 ++++++++++++++++++++++++++++++++++++++
3 files changed, 111 insertions(+)
create mode 100644 drivers/nvmem/sec-qfprom.c
--- a/drivers/nvmem/Kconfig
+++ b/drivers/nvmem/Kconfig
@@ -226,6 +226,19 @@ config NVMEM_QCOM_QFPROM
This driver can also be built as a module. If so, the module
will be called nvmem_qfprom.
+config NVMEM_QCOM_SEC_QFPROM
+ tristate "QCOM SECURE QFPROM Support"
+ depends on ARCH_QCOM || COMPILE_TEST
+ depends on HAS_IOMEM
+ depends on OF
+ select QCOM_SCM
+ help
+ Say y here to enable secure QFPROM support. The secure QFPROM provides access
+ functions for QFPROM data to rest of the drivers via nvmem interface.
+
+ This driver can also be built as a module. If so, the module will be called
+ nvmem_sec_qfprom.
+
config NVMEM_RAVE_SP_EEPROM
tristate "Rave SP EEPROM Support"
depends on RAVE_SP_CORE
--- a/drivers/nvmem/Makefile
+++ b/drivers/nvmem/Makefile
@@ -46,6 +46,8 @@ obj-$(CONFIG_NVMEM_NINTENDO_OTP) += nvme
nvmem-nintendo-otp-y := nintendo-otp.o
obj-$(CONFIG_NVMEM_QCOM_QFPROM) += nvmem_qfprom.o
nvmem_qfprom-y := qfprom.o
+obj-$(CONFIG_NVMEM_QCOM_SEC_QFPROM) += nvmem_sec_qfprom.o
+nvmem_sec_qfprom-y := sec-qfprom.o
obj-$(CONFIG_NVMEM_RAVE_SP_EEPROM) += nvmem-rave-sp-eeprom.o
nvmem-rave-sp-eeprom-y := rave-sp-eeprom.o
obj-$(CONFIG_NVMEM_RMEM) += nvmem-rmem.o
--- /dev/null
+++ b/drivers/nvmem/sec-qfprom.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2023, Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <linux/firmware/qcom/qcom_scm.h>
+#include <linux/mod_devicetable.h>
+#include <linux/nvmem-provider.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+
+/**
+ * struct sec_qfprom - structure holding secure qfprom attributes
+ *
+ * @base: starting physical address for secure qfprom corrected address space.
+ * @dev: qfprom device structure.
+ */
+struct sec_qfprom {
+ phys_addr_t base;
+ struct device *dev;
+};
+
+static int sec_qfprom_reg_read(void *context, unsigned int reg, void *_val, size_t bytes)
+{
+ struct sec_qfprom *priv = context;
+ unsigned int i;
+ u8 *val = _val;
+ u32 read_val;
+ u8 *tmp;
+
+ for (i = 0; i < bytes; i++, reg++) {
+ if (i == 0 || reg % 4 == 0) {
+ if (qcom_scm_io_readl(priv->base + (reg & ~3), &read_val)) {
+ dev_err(priv->dev, "Couldn't access fuse register\n");
+ return -EINVAL;
+ }
+ tmp = (u8 *)&read_val;
+ }
+
+ val[i] = tmp[reg & 3];
+ }
+
+ return 0;
+}
+
+static int sec_qfprom_probe(struct platform_device *pdev)
+{
+ struct nvmem_config econfig = {
+ .name = "sec-qfprom",
+ .stride = 1,
+ .word_size = 1,
+ .id = NVMEM_DEVID_AUTO,
+ .reg_read = sec_qfprom_reg_read,
+ };
+ struct device *dev = &pdev->dev;
+ struct nvmem_device *nvmem;
+ struct sec_qfprom *priv;
+ struct resource *res;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -EINVAL;
+
+ priv->base = res->start;
+
+ econfig.size = resource_size(res);
+ econfig.dev = dev;
+ econfig.priv = priv;
+
+ priv->dev = dev;
+
+ nvmem = devm_nvmem_register(dev, &econfig);
+
+ return PTR_ERR_OR_ZERO(nvmem);
+}
+
+static const struct of_device_id sec_qfprom_of_match[] = {
+ { .compatible = "qcom,sec-qfprom" },
+ {/* sentinel */},
+};
+MODULE_DEVICE_TABLE(of, sec_qfprom_of_match);
+
+static struct platform_driver qfprom_driver = {
+ .probe = sec_qfprom_probe,
+ .driver = {
+ .name = "qcom_sec_qfprom",
+ .of_match_table = sec_qfprom_of_match,
+ },
+};
+module_platform_driver(qfprom_driver);
+MODULE_DESCRIPTION("Qualcomm Secure QFPROM driver");
+MODULE_LICENSE("GPL");

30
target/linux/generic/backport-5.15/819-v6.6-0013-nvmem-u-boot-env-Replace-zero-length-array-with-DECL.patch Normal file
View File

@ -0,0 +1,30 @@
From c32f2186acc9abb4d766361255d7ddf07d15eeb2 Mon Sep 17 00:00:00 2001
From: Atul Raut <rauji.raut@gmail.com>
Date: Sun, 30 Jul 2023 15:39:15 -0700
Subject: [PATCH] nvmem: u-boot-env:: Replace zero-length array with
DECLARE_FLEX_ARRAY() helper
We are moving toward replacing zero-length arrays with C99 flexible-array
members since they are deprecated. Therefore, the new DECLARE_FLEX_ARRAY()
helper macro should be used to replace the zero-length array declaration.
This fixes warnings such as:
./drivers/nvmem/u-boot-env.c:50:9-13: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)
Signed-off-by: Atul Raut <rauji.raut@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
drivers/nvmem/u-boot-env.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/nvmem/u-boot-env.c
+++ b/drivers/nvmem/u-boot-env.c
@@ -47,7 +47,7 @@ struct u_boot_env_image_broadcom {
__le32 magic;
__le32 len;
__le32 crc32;
- uint8_t data[0];
+ DECLARE_FLEX_ARRAY(uint8_t, data);
} __packed;
static int u_boot_env_read(void *context, unsigned int offset, void *val,

40
target/linux/generic/backport-5.15/819-v6.6-0014-nvmem-core-Create-all-cells-before-adding-the-nvmem-.patch Normal file
View File

@ -0,0 +1,40 @@
From 104af6a5b199eb4dc7970d1304aef38ac5a6ed54 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue, 8 Aug 2023 08:29:26 +0200
Subject: [PATCH] nvmem: core: Create all cells before adding the nvmem device
Let's pack all the cells creation in one place, so they are all created
before we add the nvmem device.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
drivers/nvmem/core.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -998,17 +998,17 @@ struct nvmem_device *nvmem_register(cons
if (rval)
goto err_remove_cells;
- dev_dbg(&nvmem->dev, "Registering nvmem device %s\n", config->name);
-
- rval = device_add(&nvmem->dev);
+ rval = nvmem_add_cells_from_fixed_layout(nvmem);
if (rval)
goto err_remove_cells;
- rval = nvmem_add_cells_from_fixed_layout(nvmem);
+ rval = nvmem_add_cells_from_layout(nvmem);
if (rval)
goto err_remove_cells;
- rval = nvmem_add_cells_from_layout(nvmem);
+ dev_dbg(&nvmem->dev, "Registering nvmem device %s\n", config->name);
+
+ rval = device_add(&nvmem->dev);
if (rval)
goto err_remove_cells;

35
target/linux/generic/backport-5.15/819-v6.6-0015-nvmem-core-Return-NULL-when-no-nvmem-layout-is-found.patch Normal file
View File

@ -0,0 +1,35 @@
From 6c7f48ea2e663b679aa8e60d8d8e1e6306a644f9 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue, 8 Aug 2023 08:29:27 +0200
Subject: [PATCH] nvmem: core: Return NULL when no nvmem layout is found
Currently, of_nvmem_layout_get_container() returns NULL on error, or an
error pointer if either CONFIG_NVMEM or CONFIG_OF is turned off. We
should likely avoid this kind of mix for two reasons: to clarify the
intend and anyway fix the !CONFIG_OF which will likely always if we use
this helper somewhere else. Let's just return NULL when no layout is
found, we don't need an error value here.
Link: https://staticthinking.wordpress.com/2022/08/01/mixing-error-pointers-and-null/
Fixes: 266570f496b9 ("nvmem: core: introduce NVMEM layouts")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202308030002.DnSFOrMB-lkp@intel.com/
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
include/linux/nvmem-consumer.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/nvmem-consumer.h
+++ b/include/linux/nvmem-consumer.h
@@ -256,7 +256,7 @@ static inline struct nvmem_device *of_nv
static inline struct device_node *
of_nvmem_layout_get_container(struct nvmem_device *nvmem)
{
- return ERR_PTR(-EOPNOTSUPP);
+ return NULL;
}
#endif /* CONFIG_NVMEM && CONFIG_OF */

29
target/linux/generic/backport-5.15/819-v6.6-0016-nvmem-core-Do-not-open-code-existing-functions.patch Normal file
View File

@ -0,0 +1,29 @@
From b8257f61b4ddac6d7d0e19a5a4e8b07afb3b4ed3 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue, 8 Aug 2023 08:29:28 +0200
Subject: [PATCH] nvmem: core: Do not open-code existing functions
Use of_nvmem_layout_get_container() instead of hardcoding it.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
drivers/nvmem/core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -786,10 +786,10 @@ EXPORT_SYMBOL_GPL(nvmem_layout_unregiste
static struct nvmem_layout *nvmem_layout_get(struct nvmem_device *nvmem)
{
- struct device_node *layout_np, *np = nvmem->dev.of_node;
+ struct device_node *layout_np;
struct nvmem_layout *l, *layout = ERR_PTR(-EPROBE_DEFER);
- layout_np = of_get_child_by_name(np, "nvmem-layout");
+ layout_np = of_nvmem_layout_get_container(nvmem);
if (!layout_np)
return NULL;

44
target/linux/generic/backport-5.15/819-v6.6-0017-nvmem-core-Notify-when-a-new-layout-is-registered.patch Normal file
View File

@ -0,0 +1,44 @@
From 0991afbe4b1805e7f0113ef10d7c5f0698a739e4 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue, 8 Aug 2023 08:29:29 +0200
Subject: [PATCH] nvmem: core: Notify when a new layout is registered
Tell listeners a new layout was introduced and is now available.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
drivers/nvmem/core.c | 4 ++++
include/linux/nvmem-consumer.h | 2 ++
2 files changed, 6 insertions(+)
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -772,12 +772,16 @@ int __nvmem_layout_register(struct nvmem
list_add(&layout->node, &nvmem_layouts);
spin_unlock(&nvmem_layout_lock);
+ blocking_notifier_call_chain(&nvmem_notifier, NVMEM_LAYOUT_ADD, layout);
+
return 0;
}
EXPORT_SYMBOL_GPL(__nvmem_layout_register);
void nvmem_layout_unregister(struct nvmem_layout *layout)
{
+ blocking_notifier_call_chain(&nvmem_notifier, NVMEM_LAYOUT_REMOVE, layout);
+
spin_lock(&nvmem_layout_lock);
list_del(&layout->node);
spin_unlock(&nvmem_layout_lock);
--- a/include/linux/nvmem-consumer.h
+++ b/include/linux/nvmem-consumer.h
@@ -43,6 +43,8 @@ enum {
NVMEM_REMOVE,
NVMEM_CELL_ADD,
NVMEM_CELL_REMOVE,
+ NVMEM_LAYOUT_ADD,
+ NVMEM_LAYOUT_REMOVE,
};
#if IS_ENABLED(CONFIG_NVMEM)

2
target/linux/generic/pending-5.15/803-nvmem-core-fix-support-for-fixed-cells-NVMEM-layout.patch
View File

@ -18,7 +18,7 @@ Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -794,6 +794,19 @@ static struct nvmem_layout *nvmem_layout
@@ -798,6 +798,19 @@ static struct nvmem_layout *nvmem_layout
return NULL;
/*

1
target/linux/ipq40xx/config-5.15
View File

@ -308,6 +308,7 @@ CONFIG_NO_HZ_IDLE=y
CONFIG_NR_CPUS=4
CONFIG_NVMEM=y
CONFIG_NVMEM_QCOM_QFPROM=y
# CONFIG_NVMEM_QCOM_SEC_QFPROM is not set
# CONFIG_NVMEM_SPMI_SDAM is not set
CONFIG_NVMEM_SYSFS=y
CONFIG_OF=y

1
target/linux/ipq806x/config-5.15
View File

@ -300,6 +300,7 @@ CONFIG_NO_HZ_IDLE=y
CONFIG_NR_CPUS=2
CONFIG_NVMEM=y
CONFIG_NVMEM_QCOM_QFPROM=y
# CONFIG_NVMEM_QCOM_SEC_QFPROM is not set
# CONFIG_NVMEM_SPMI_SDAM is not set
CONFIG_NVMEM_SYSFS=y
CONFIG_OF=y

1
target/linux/ipq807x/config-5.15
View File

@ -256,6 +256,7 @@ CONFIG_NR_CPUS=4
CONFIG_NVIDIA_CARMEL_CNP_ERRATUM=y
CONFIG_NVMEM=y
CONFIG_NVMEM_QCOM_QFPROM=y
# CONFIG_NVMEM_QCOM_SEC_QFPROM is not set
# CONFIG_NVMEM_SPMI_SDAM is not set
CONFIG_NVMEM_SYSFS=y
CONFIG_NVMEM_U_BOOT_ENV=y

1
target/linux/mpc85xx/config-5.15
View File

@ -152,6 +152,7 @@ CONFIG_NLS=y
CONFIG_NR_CPUS=1
CONFIG_NR_IRQS=512
CONFIG_NVMEM=y
# CONFIG_NVMEM_QORIQ_EFUSE is not set
CONFIG_OF=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_DMA_DEFAULT_COHERENT=y