49 lines
1.6 KiB
Diff
49 lines
1.6 KiB
Diff
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From c336f64cf9a9c1bbeb0027f26c94ecfb29367ee1 Mon Sep 17 00:00:00 2001
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From: "Huang, Tao" <huangtao@rock-chips.com>
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Date: Thu, 6 Apr 2017 20:27:14 +0800
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Subject: [PATCH] soc: rockchip: add cpuinfo support
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Set system_serial_low/high from eFuse ID.
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Serial can read from /proc/cpuinfo.
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Change-Id: If412fc5a89a5e5092b510452fc5a126fdd374ac2
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Signed-off-by: Huang, Tao <huangtao@rock-chips.com>
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---
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.../soc/rockchip/rockchip-cpuinfo.txt | 16 ++++
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drivers/soc/rockchip/Kconfig | 10 +++
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drivers/soc/rockchip/Makefile | 1 +
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drivers/soc/rockchip/rockchip-cpuinfo.c | 75 +++++++++++++++++++
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4 files changed, 102 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/soc/rockchip/rockchip-cpuinfo.txt
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create mode 100644 drivers/soc/rockchip/rockchip-cpuinfo.c
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--- a/drivers/soc/rockchip/Kconfig
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+++ b/drivers/soc/rockchip/Kconfig
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@@ -5,6 +5,16 @@ if ARCH_ROCKCHIP || COMPILE_TEST
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# Rockchip Soc drivers
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#
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+config ROCKCHIP_CPUINFO
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+ tristate "Rockchip cpuinfo support"
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+ depends on (NVMEM_ROCKCHIP_EFUSE || NVMEM_ROCKCHIP_OTP) && (ARM64 || ARM)
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+ help
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+ Say y here to enable Rockchip cpuinfo support.
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+ Set system_serial_low/high from eFuse ID.
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+ Serial can read from /proc/cpuinfo.
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+
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+ If unsure, say N.
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+
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config ROCKCHIP_GRF
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bool "Rockchip General Register Files support" if COMPILE_TEST
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default y if ARCH_ROCKCHIP
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--- a/drivers/soc/rockchip/Makefile
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+++ b/drivers/soc/rockchip/Makefile
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@@ -2,6 +2,7 @@
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#
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# Rockchip Soc drivers
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#
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+obj-$(CONFIG_ROCKCHIP_CPUINFO) += cpuinfo.o
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obj-$(CONFIG_ROCKCHIP_GRF) += grf.o
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obj-$(CONFIG_ROCKCHIP_IODOMAIN) += io-domain.o
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obj-$(CONFIG_ROCKCHIP_DTPM) += dtpm.o
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