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>
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e79ecb4c26
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1 changed files with 27 additions and 2 deletions
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@ -254,17 +254,42 @@ static int rtl8366s_setup(struct rtl8366_smi *smi)
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{
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struct rtl8366_platform_data *pdata;
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int err;
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unsigned i;
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#ifdef CONFIG_OF
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struct device_node *np;
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unsigned num_initvals;
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const __be32 *paddr;
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#endif
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pdata = smi->parent->platform_data;
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if (pdata && pdata->num_initvals && pdata->initvals) {
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unsigned i;
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dev_info(smi->parent, "applying initvals\n");
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for (i = 0; i < pdata->num_initvals; i++)
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REG_WR(smi, pdata->initvals[i].reg,
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pdata->initvals[i].val);
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}
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#ifdef CONFIG_OF
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np = smi->parent->of_node;
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paddr = of_get_property(np, "realtek,initvals", &num_initvals);
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if (paddr) {
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dev_info(smi->parent, "applying initvals from DTS\n");
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if (num_initvals < (2 * sizeof(*paddr)))
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return -EINVAL;
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num_initvals /= sizeof(*paddr);
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for (i = 0; i < num_initvals - 1; i += 2) {
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u32 reg = be32_to_cpup(paddr + i);
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u32 val = be32_to_cpup(paddr + i + 1);
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REG_WR(smi, reg, val);
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}
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}
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#endif
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/* set maximum packet length to 1536 bytes */
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REG_RMW(smi, RTL8366S_SGCR, RTL8366S_SGCR_MAX_LENGTH_MASK,
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RTL8366S_SGCR_MAX_LENGTH_1536);
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