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58 lines
1.6 KiB
Diff
58 lines
1.6 KiB
Diff
From caaa7def76801cbe9937602603f6b471f776e6f6 Mon Sep 17 00:00:00 2001
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From: The-going <48602507+The-going@users.noreply.github.com>
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Date: Sat, 16 Apr 2022 11:19:05 +0300
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Subject: [PATCH] nvmem: sunxi_sid: add sunxi_get_soc_chipid, sunxi_get_serial
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---
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drivers/nvmem/sunxi_sid.c | 28 ++++++++++++++++++++++++++++
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1 file changed, 28 insertions(+)
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diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c
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index 37a6abb0e..c81fac63d 100644
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--- a/drivers/nvmem/sunxi_sid.c
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+++ b/drivers/nvmem/sunxi_sid.c
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@@ -37,6 +37,25 @@ struct sunxi_sid {
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u32 value_offset;
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};
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+static unsigned int sunxi_soc_chipid[4];
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+static unsigned int sunxi_serial[4];
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+
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+int sunxi_get_soc_chipid(unsigned char *chipid)
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+{
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+ memcpy(chipid, sunxi_soc_chipid, 16);
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+
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+ return 0;
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+}
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+EXPORT_SYMBOL(sunxi_get_soc_chipid);
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+
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+int sunxi_get_serial(unsigned char *serial)
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+{
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+ memcpy(serial, sunxi_serial, 16);
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+
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+ return 0;
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+}
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+EXPORT_SYMBOL(sunxi_get_serial);
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+
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static int sunxi_sid_read(void *context, unsigned int offset,
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void *val, size_t bytes)
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{
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@@ -167,6 +186,15 @@ static int sunxi_sid_probe(struct platform_device *pdev)
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platform_set_drvdata(pdev, nvmem);
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+ nvmem_cfg->reg_read(sid, 0, &sunxi_soc_chipid[0], sizeof(int));
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+ nvmem_cfg->reg_read(sid, 4, &sunxi_soc_chipid[1], sizeof(int));
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+ nvmem_cfg->reg_read(sid, 8, &sunxi_soc_chipid[2], sizeof(int));
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+ nvmem_cfg->reg_read(sid, 12, &sunxi_soc_chipid[3], sizeof(int));
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+
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+ sunxi_serial[0] = sunxi_soc_chipid[3];
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+ sunxi_serial[1] = sunxi_soc_chipid[2];
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+ sunxi_serial[2] = (sunxi_soc_chipid[1] >> 16) & 0x0ffff;
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+
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return 0;
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}
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--
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2.34.1
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