diff options
Diffstat (limited to 'target/linux/mvebu/patches-3.10/0114-mtd-nand-pxa3xx-Introduce-marvell-armada370-nand-com.patch')
| -rw-r--r-- | target/linux/mvebu/patches-3.10/0114-mtd-nand-pxa3xx-Introduce-marvell-armada370-nand-com.patch | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-3.10/0114-mtd-nand-pxa3xx-Introduce-marvell-armada370-nand-com.patch b/target/linux/mvebu/patches-3.10/0114-mtd-nand-pxa3xx-Introduce-marvell-armada370-nand-com.patch new file mode 100644 index 0000000000..b18e61fbca --- /dev/null +++ b/target/linux/mvebu/patches-3.10/0114-mtd-nand-pxa3xx-Introduce-marvell-armada370-nand-com.patch @@ -0,0 +1,88 @@ +From 259e46e4327a9937761fd3f7bc07e208b1fa50e6 Mon Sep 17 00:00:00 2001 +From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> +Date: Sat, 10 Aug 2013 16:34:52 -0300 +Subject: [PATCH 114/203] mtd: nand: pxa3xx: Introduce 'marvell,armada370-nand' + compatible string + +This driver supports NFCv1 (as found in PXA SoC) and NFCv2 (as found in +Armada 370/XP SoC). As both controller has a few differences, a way of +distinguishing between the two is needed. + +This commit introduces a new compatible string 'marvell,armada370-nand' +and assigns a compatible data of type enum pxa3xx_nand_variant to allow +such distinction. + +Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> +Tested-by: Daniel Mack <zonque@gmail.com> +Cc: devicetree@vger.kernel.org +Signed-off-by: Brian Norris <computersforpeace@gmail.com> +Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> +--- + drivers/mtd/nand/pxa3xx_nand.c | 31 ++++++++++++++++++++++++++++++- + 1 file changed, 30 insertions(+), 1 deletion(-) + +--- a/drivers/mtd/nand/pxa3xx_nand.c ++++ b/drivers/mtd/nand/pxa3xx_nand.c +@@ -123,6 +123,11 @@ enum { + STATE_READY, + }; + ++enum pxa3xx_nand_variant { ++ PXA3XX_NAND_VARIANT_PXA, ++ PXA3XX_NAND_VARIANT_ARMADA370, ++}; ++ + struct pxa3xx_nand_host { + struct nand_chip chip; + struct pxa3xx_nand_cmdset *cmdset; +@@ -171,6 +176,12 @@ struct pxa3xx_nand_info { + struct pxa3xx_nand_host *host[NUM_CHIP_SELECT]; + unsigned int state; + ++ /* ++ * This driver supports NFCv1 (as found in PXA SoC) ++ * and NFCv2 (as found in Armada 370/XP SoC). ++ */ ++ enum pxa3xx_nand_variant variant; ++ + int cs; + int use_ecc; /* use HW ECC ? */ + int use_dma; /* use DMA ? */ +@@ -1192,11 +1203,28 @@ static int pxa3xx_nand_remove(struct pla + + #ifdef CONFIG_OF + static struct of_device_id pxa3xx_nand_dt_ids[] = { +- { .compatible = "marvell,pxa3xx-nand" }, ++ { ++ .compatible = "marvell,pxa3xx-nand", ++ .data = (void *)PXA3XX_NAND_VARIANT_PXA, ++ }, ++ { ++ .compatible = "marvell,armada370-nand", ++ .data = (void *)PXA3XX_NAND_VARIANT_ARMADA370, ++ }, + {} + }; + MODULE_DEVICE_TABLE(of, pxa3xx_nand_dt_ids); + ++static enum pxa3xx_nand_variant ++pxa3xx_nand_get_variant(struct platform_device *pdev) ++{ ++ const struct of_device_id *of_id = ++ of_match_device(pxa3xx_nand_dt_ids, &pdev->dev); ++ if (!of_id) ++ return PXA3XX_NAND_VARIANT_PXA; ++ return (enum pxa3xx_nand_variant)of_id->data; ++} ++ + static int pxa3xx_nand_probe_dt(struct platform_device *pdev) + { + struct pxa3xx_nand_platform_data *pdata; +@@ -1252,6 +1280,7 @@ static int pxa3xx_nand_probe(struct plat + } + + info = platform_get_drvdata(pdev); ++ info->variant = pxa3xx_nand_get_variant(pdev); + probe_success = 0; + for (cs = 0; cs < pdata->num_cs; cs++) { + info->cs = cs; |