sunxi: port sunxi_get_soc_chipid / sunxi_get_serial from SDK

target/linux/sunxi/patches-6.1/101-sunxi-add-get_soc_chipid-and-sunxi_get_serial.patch

@@ -0,0 +1,57 @@
+From caaa7def76801cbe9937602603f6b471f776e6f6 Mon Sep 17 00:00:00 2001
+From: The-going <48602507+The-going@users.noreply.github.com>
+Date: Sat, 16 Apr 2022 11:19:05 +0300
+Subject: [PATCH] nvmem: sunxi_sid: add sunxi_get_soc_chipid, sunxi_get_serial
+
+---
+ drivers/nvmem/sunxi_sid.c | 28 ++++++++++++++++++++++++++++
+ 1 file changed, 28 insertions(+)
+
+diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c
+index 37a6abb0e..c81fac63d 100644
+--- a/drivers/nvmem/sunxi_sid.c
++++ b/drivers/nvmem/sunxi_sid.c
+@@ -37,6 +37,25 @@ struct sunxi_sid {
+ 	u32			value_offset;
+ };
+ 
++static unsigned int sunxi_soc_chipid[4];
++static unsigned int sunxi_serial[4];
++
++int sunxi_get_soc_chipid(unsigned char *chipid)
++{
++	memcpy(chipid, sunxi_soc_chipid, 16);
++
++	return 0;
++}
++EXPORT_SYMBOL(sunxi_get_soc_chipid);
++
++int sunxi_get_serial(unsigned       char *serial)
++{
++	memcpy(serial, sunxi_serial, 16);
++
++	return 0;
++}
++EXPORT_SYMBOL(sunxi_get_serial);
++
+ static int sunxi_sid_read(void *context, unsigned int offset,
+ 			  void *val, size_t bytes)
+ {
+@@ -167,6 +186,15 @@ static int sunxi_sid_probe(struct platform_device *pdev)
+ 
+ 	platform_set_drvdata(pdev, nvmem);
+ 
++	nvmem_cfg->reg_read(sid, 0, &sunxi_soc_chipid[0], sizeof(int));
++	nvmem_cfg->reg_read(sid, 4, &sunxi_soc_chipid[1], sizeof(int));
++	nvmem_cfg->reg_read(sid, 8, &sunxi_soc_chipid[2], sizeof(int));
++	nvmem_cfg->reg_read(sid, 12, &sunxi_soc_chipid[3], sizeof(int));
++
++	sunxi_serial[0] = sunxi_soc_chipid[3];
++	sunxi_serial[1] = sunxi_soc_chipid[2];
++	sunxi_serial[2] = (sunxi_soc_chipid[1] >> 16) & 0x0ffff;
++
+ 	return 0;
+ }
+ 
+-- 
+2.34.1