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mtd: davinci: add support for parition binding nodes
Enhance the driver to support partition subnodes inside the nand device bindings to describe partions on the nand device. Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Reviewed-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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2 changed files with 17 additions and 2 deletions
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@ -23,6 +23,9 @@ Recommended properties :
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- ti,davinci-nand-buswidth: buswidth 8 or 16
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- ti,davinci-nand-use-bbt: use flash based bad block table support.
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nand device bindings may contain additional sub-nodes describing
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partitions of the address space. See partition.txt for more detail.
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Example (enbw_cmc board):
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aemif@60000000 {
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compatible = "ti,davinci-aemif";
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@ -47,5 +50,10 @@ aemif@60000000 {
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ti,davinci-ecc-mode = "hw";
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ti,davinci-ecc-bits = <4>;
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ti,davinci-nand-use-bbt;
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partition@180000 {
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label = "ubifs";
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reg = <0x180000 0x7e80000>;
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};
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};
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};
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@ -821,9 +821,16 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
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if (ret < 0)
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goto err_scan;
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ret = mtd_device_parse_register(&info->mtd, NULL, NULL, pdata->parts,
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pdata->nr_parts);
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if (pdata->parts)
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ret = mtd_device_parse_register(&info->mtd, NULL, NULL,
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pdata->parts, pdata->nr_parts);
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else {
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struct mtd_part_parser_data ppdata;
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ppdata.of_node = pdev->dev.of_node;
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ret = mtd_device_parse_register(&info->mtd, NULL, &ppdata,
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NULL, 0);
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}
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if (ret < 0)
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goto err_scan;
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