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generic: rtl8366s: add support support for initvals from DTS

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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>
This commit is contained in:
Tobias Wolf 2017-01-25 16:22:13 +01:00 committed by Mathias Kresin
parent e79ecb4c26
commit 30494598f8
1 changed files with 27 additions and 2 deletions
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29
target/linux/generic/files/drivers/net/phy/rtl8366s.c
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@ -254,17 +254,42 @@ static int rtl8366s_setup(struct rtl8366_smi *smi)
{ {
struct rtl8366_platform_data *pdata; struct rtl8366_platform_data *pdata;
int err; int err;
unsigned i;
#ifdef CONFIG_OF
struct device_node *np;
unsigned num_initvals;
const __be32 *paddr;
#endif
pdata = smi->parent->platform_data; pdata = smi->parent->platform_data;
if (pdata && pdata->num_initvals && pdata->initvals) { if (pdata && pdata->num_initvals && pdata->initvals) {
unsigned i;
dev_info(smi->parent, "applying initvals\n"); dev_info(smi->parent, "applying initvals\n");
for (i = 0; i < pdata->num_initvals; i++) for (i = 0; i < pdata->num_initvals; i++)
REG_WR(smi, pdata->initvals[i].reg, REG_WR(smi, pdata->initvals[i].reg,
pdata->initvals[i].val); 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 */ /* set maximum packet length to 1536 bytes */
REG_RMW(smi, RTL8366S_SGCR, RTL8366S_SGCR_MAX_LENGTH_MASK, REG_RMW(smi, RTL8366S_SGCR, RTL8366S_SGCR_MAX_LENGTH_MASK,
RTL8366S_SGCR_MAX_LENGTH_1536); RTL8366S_SGCR_MAX_LENGTH_1536);