From f4ae444f3ed94d89ea6d239c944ae2956ba92d3b Mon Sep 17 00:00:00 2001
From: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
Date: Thu, 20 Apr 2017 19:14:35 +0100
Subject: [PATCH] generic: rtl8366rb: add support for initvals from DTS
Allow per-device initvals in the DTS file for rlt8366rb
switches.
Shamelessly copies 30494598f891fc4436a49eca55fc31d03c087841
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
---
.../generic/files/drivers/net/phy/rtl8366rb.c | 25 +++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/target/linux/generic/files/drivers/net/phy/rtl8366rb.c b/target/linux/generic/files/drivers/net/phy/rtl8366rb.c
index a0aaabf546..264343a81f 100644
--- a/target/linux/generic/files/drivers/net/phy/rtl8366rb.c
+++ b/target/linux/generic/files/drivers/net/phy/rtl8366rb.c
@@ -282,6 +282,31 @@ static int rtl8366rb_reset_chip(struct rtl8366_smi *smi)
static int rtl8366rb_setup(struct rtl8366_smi *smi)
{
int err;
+#ifdef CONFIG_OF
+ unsigned i;
+ struct device_node *np;
+ unsigned num_initvals;
+ const __be32 *paddr;
+
+ np = smi->parent->of_node;
+
+ paddr = of_get_property(np, "realtek,initvals", &num_initvals);
+ if (paddr) {
+ dev_info(smi->parent, "applying initvals from DTS\n");
+
+ if (num_initvals < (2 * sizeof(*paddr)))
+ return -EINVAL;
+
+ num_initvals /= sizeof(*paddr);
+
+ for (i = 0; i < num_initvals - 1; i += 2) {
+ u32 reg = be32_to_cpup(paddr + i);
+ u32 val = be32_to_cpup(paddr + i + 1);
+
+ REG_WR(smi, reg, val);
+ }
+ }
+#endif
/* set maximum packet length to 1536 bytes */
REG_RMW(smi, RTL8366RB_SGCR, RTL8366RB_SGCR_MAX_LENGTH_MASK,
--
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