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NVRAM access may be needed early in boot process. Reading it using mtd happens quite late in the init process. Add NVRAM initialization to the NVMEM driver which comes up early and depends on IO mapping only. This is required by Linksys devices which use NVRAM content for proper partitioning (detecting current firmware partition). Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
32 lines
924 B
Diff
32 lines
924 B
Diff
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Thu, 11 Mar 2021 08:26:14 +0100
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Subject: [PATCH] nvmem: brcm_nvram: provide NVMEM content to the NVRAM driver
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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---
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drivers/nvmem/brcm_nvram.c | 3 +++
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1 file changed, 3 insertions(+)
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--- a/drivers/nvmem/brcm_nvram.c
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+++ b/drivers/nvmem/brcm_nvram.c
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@@ -3,6 +3,7 @@
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* Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl>
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*/
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+#include <linux/bcm47xx_nvram.h>
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#include <linux/io.h>
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#include <linux/mod_devicetable.h>
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#include <linux/module.h>
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@@ -46,6 +47,8 @@ static int brcm_nvram_probe(struct platf
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if (IS_ERR(priv->base))
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return PTR_ERR(priv->base);
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+ bcm47xx_nvram_init_from_iomem(priv->base, resource_size(res));
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+
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config.dev = dev;
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config.priv = priv;
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config.size = resource_size(res);
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