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authorTobias Wolf <github-NTEO@vplace.de>2017-01-25 16:22:13 +0100
committerMathias Kresin <dev@kresin.me>2017-01-27 11:10:10 +0100
commit30494598f891fc4436a49eca55fc31d03c087841 (patch)
treea4c77ff1608eda7da23f382ac0abf75ec90ea240 /target/linux/generic/files/drivers
parente79ecb4c26471526552d2473bb50d331c3dafb87 (diff)
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generic: rtl8366s: add support support for initvals from DTS
This change provides the possibility to define per-device initvals in the DTS file for a rlt8366s switch. Signed-off-by: Tobias Wolf <github-NTEO@vplace.de>
Diffstat (limited to 'target/linux/generic/files/drivers')
-rw-r--r--target/linux/generic/files/drivers/net/phy/rtl8366s.c29
1 files changed, 27 insertions, 2 deletions
diff --git a/target/linux/generic/files/drivers/net/phy/rtl8366s.c b/target/linux/generic/files/drivers/net/phy/rtl8366s.c
index 3dc2a87aed..b54b4b13b0 100644
--- a/target/linux/generic/files/drivers/net/phy/rtl8366s.c
+++ b/target/linux/generic/files/drivers/net/phy/rtl8366s.c
@@ -254,17 +254,42 @@ static int rtl8366s_setup(struct rtl8366_smi *smi)
{
struct rtl8366_platform_data *pdata;
int err;
+ unsigned i;
+#ifdef CONFIG_OF
+ struct device_node *np;
+ unsigned num_initvals;
+ const __be32 *paddr;
+#endif
pdata = smi->parent->platform_data;
if (pdata && pdata->num_initvals && pdata->initvals) {
- unsigned i;
-
dev_info(smi->parent, "applying initvals\n");
for (i = 0; i < pdata->num_initvals; i++)
REG_WR(smi, pdata->initvals[i].reg,
pdata->initvals[i].val);
}
+#ifdef CONFIG_OF
+ 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, RTL8366S_SGCR, RTL8366S_SGCR_MAX_LENGTH_MASK,
RTL8366S_SGCR_MAX_LENGTH_1536);