diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/803-v5.13-0003-nvmem-brcm_nvram-new-driver-exposing-Broadcom-s-NVRA.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/803-v5.13-0003-nvmem-brcm_nvram-new-driver-exposing-Broadcom-s-NVRA.patch | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/target/linux/generic/backport-5.10/803-v5.13-0003-nvmem-brcm_nvram-new-driver-exposing-Broadcom-s-NVRA.patch b/target/linux/generic/backport-5.10/803-v5.13-0003-nvmem-brcm_nvram-new-driver-exposing-Broadcom-s-NVRA.patch deleted file mode 100644 index 17be01c14f..0000000000 --- a/target/linux/generic/backport-5.10/803-v5.13-0003-nvmem-brcm_nvram-new-driver-exposing-Broadcom-s-NVRA.patch +++ /dev/null @@ -1,126 +0,0 @@ -From 3fef9ed0627af30753a2404b8bd59d92cdb4c0ce Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> -Date: Tue, 30 Mar 2021 12:12:36 +0100 -Subject: [PATCH] nvmem: brcm_nvram: new driver exposing Broadcom's NVRAM -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -This driver provides access to Broadcom's NVRAM. - -Signed-off-by: Rafał Miłecki <rafal@milecki.pl> -Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> -Link: https://lore.kernel.org/r/20210330111241.19401-6-srinivas.kandagatla@linaro.org -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - drivers/nvmem/Kconfig | 9 +++++ - drivers/nvmem/Makefile | 2 + - drivers/nvmem/brcm_nvram.c | 78 ++++++++++++++++++++++++++++++++++++++ - 3 files changed, 89 insertions(+) - create mode 100644 drivers/nvmem/brcm_nvram.c - ---- a/drivers/nvmem/Kconfig -+++ b/drivers/nvmem/Kconfig -@@ -278,4 +278,13 @@ config NVMEM_RMEM - - This driver can also be built as a module. If so, the module - will be called nvmem-rmem. -+ -+config NVMEM_BRCM_NVRAM -+ tristate "Broadcom's NVRAM support" -+ depends on ARCH_BCM_5301X || COMPILE_TEST -+ depends on HAS_IOMEM -+ help -+ This driver provides support for Broadcom's NVRAM that can be accessed -+ using I/O mapping. -+ - endif ---- a/drivers/nvmem/Makefile -+++ b/drivers/nvmem/Makefile -@@ -57,3 +57,5 @@ obj-$(CONFIG_SPRD_EFUSE) += nvmem_sprd_e - nvmem_sprd_efuse-y := sprd-efuse.o - obj-$(CONFIG_NVMEM_RMEM) += nvmem-rmem.o - nvmem-rmem-y := rmem.o -+obj-$(CONFIG_NVMEM_BRCM_NVRAM) += nvmem_brcm_nvram.o -+nvmem_brcm_nvram-y := brcm_nvram.o ---- /dev/null -+++ b/drivers/nvmem/brcm_nvram.c -@@ -0,0 +1,78 @@ -+// SPDX-License-Identifier: GPL-2.0-only -+/* -+ * Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl> -+ */ -+ -+#include <linux/io.h> -+#include <linux/mod_devicetable.h> -+#include <linux/module.h> -+#include <linux/nvmem-provider.h> -+#include <linux/platform_device.h> -+ -+struct brcm_nvram { -+ struct device *dev; -+ void __iomem *base; -+}; -+ -+static int brcm_nvram_read(void *context, unsigned int offset, void *val, -+ size_t bytes) -+{ -+ struct brcm_nvram *priv = context; -+ u8 *dst = val; -+ -+ while (bytes--) -+ *dst++ = readb(priv->base + offset++); -+ -+ return 0; -+} -+ -+static int brcm_nvram_probe(struct platform_device *pdev) -+{ -+ struct nvmem_config config = { -+ .name = "brcm-nvram", -+ .reg_read = brcm_nvram_read, -+ }; -+ struct device *dev = &pdev->dev; -+ struct resource *res; -+ struct brcm_nvram *priv; -+ -+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); -+ if (!priv) -+ return -ENOMEM; -+ priv->dev = dev; -+ -+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ priv->base = devm_ioremap_resource(dev, res); -+ if (IS_ERR(priv->base)) -+ return PTR_ERR(priv->base); -+ -+ config.dev = dev; -+ config.priv = priv; -+ config.size = resource_size(res); -+ -+ return PTR_ERR_OR_ZERO(devm_nvmem_register(dev, &config)); -+} -+ -+static const struct of_device_id brcm_nvram_of_match_table[] = { -+ { .compatible = "brcm,nvram", }, -+ {}, -+}; -+ -+static struct platform_driver brcm_nvram_driver = { -+ .probe = brcm_nvram_probe, -+ .driver = { -+ .name = "brcm_nvram", -+ .of_match_table = brcm_nvram_of_match_table, -+ }, -+}; -+ -+static int __init brcm_nvram_init(void) -+{ -+ return platform_driver_register(&brcm_nvram_driver); -+} -+ -+subsys_initcall_sync(brcm_nvram_init); -+ -+MODULE_AUTHOR("Rafał Miłecki"); -+MODULE_LICENSE("GPL"); -+MODULE_DEVICE_TABLE(of, brcm_nvram_of_match_table); |