diff options
Diffstat (limited to 'target/linux/lantiq/patches-3.7/0111-MTD-MIPS-lantiq-Add-NAND-support-on-Lantiq-FALCON-So.patch')
| -rw-r--r-- | target/linux/lantiq/patches-3.7/0111-MTD-MIPS-lantiq-Add-NAND-support-on-Lantiq-FALCON-So.patch | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/target/linux/lantiq/patches-3.7/0111-MTD-MIPS-lantiq-Add-NAND-support-on-Lantiq-FALCON-So.patch b/target/linux/lantiq/patches-3.7/0111-MTD-MIPS-lantiq-Add-NAND-support-on-Lantiq-FALCON-So.patch deleted file mode 100644 index 03f0e15d59..0000000000 --- a/target/linux/lantiq/patches-3.7/0111-MTD-MIPS-lantiq-Add-NAND-support-on-Lantiq-FALCON-So.patch +++ /dev/null @@ -1,129 +0,0 @@ -From 72112b91624dca6c636bd3a592471642d3988b27 Mon Sep 17 00:00:00 2001 -From: John Crispin <blogic@openwrt.org> -Date: Fri, 20 Jul 2012 19:09:01 +0200 -Subject: [PATCH 111/123] MTD: MIPS: lantiq: Add NAND support on Lantiq FALCON - SoC. - -The driver uses plat_nand. As the platform_device is loaded from DT, we need -to lookup the node and attach our falocn specific "struct platform_nand_data" -to it. - -Signed-off-by: John Crispin <blogic@openwrt.org> -Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> -Cc: linux-mtd@lists.infradead.org ---- - drivers/mtd/nand/Kconfig | 8 ++++ - drivers/mtd/nand/Makefile | 1 + - drivers/mtd/nand/falcon_nand.c | 82 ++++++++++++++++++++++++++++++++++++++++ - 3 files changed, 91 insertions(+) - create mode 100644 drivers/mtd/nand/falcon_nand.c - ---- a/drivers/mtd/nand/Kconfig -+++ b/drivers/mtd/nand/Kconfig -@@ -572,4 +572,12 @@ config MTD_NAND_XWAY - Enables support for NAND Flash chips on Lantiq XWAY SoCs. NAND is attached - to the External Bus Unit (EBU). - -+config MTD_NAND_FALCON -+ tristate "Support for NAND on Lantiq FALC-ON SoC" -+ depends on LANTIQ && SOC_FALCON -+ select MTD_NAND_PLATFORM -+ help -+ Enables support for NAND Flash chips on Lantiq FALC-ON SoCs. NAND is -+ attached to the External Bus Unit (EBU). -+ - endif # MTD_NAND ---- a/drivers/mtd/nand/Makefile -+++ b/drivers/mtd/nand/Makefile -@@ -53,5 +53,6 @@ obj-$(CONFIG_MTD_NAND_RICOH) += r852.o - obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o - obj-$(CONFIG_MTD_NAND_GPMI_NAND) += gpmi-nand/ - obj-$(CONFIG_MTD_NAND_XWAY) += xway_nand.o -+obj-$(CONFIG_MTD_NAND_FALCON) += falcon_nand.o - - nand-objs := nand_base.o nand_bbt.o ---- /dev/null -+++ b/drivers/mtd/nand/falcon_nand.c -@@ -0,0 +1,82 @@ -+/* -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License version 2 as published -+ * by the Free Software Foundation. -+ * -+ * Copyright (C) 2011 Thomas Langer <thomas.langer@lantiq.com> -+ * Copyright (C) 2011 John Crispin <blogic@openwrt.org> -+ */ -+ -+#include <linux/mtd/nand.h> -+#include <linux/of_platform.h> -+ -+#include <lantiq_soc.h> -+ -+/* nand flash */ -+/* address lines used for NAND control signals */ -+#define NAND_ADDR_ALE 0x10000 -+#define NAND_ADDR_CLE 0x20000 -+/* Ready/Busy Status */ -+#define MODCON_STS 0x0002 -+/* Ready/Busy Status Edge */ -+#define MODCON_STSEDGE 0x0004 -+#define LTQ_EBU_MODCON 0x000C -+ -+static const char *part_probes[] = { "cmdlinepart", "ofpart", NULL }; -+ -+static int falcon_nand_ready(struct mtd_info *mtd) -+{ -+ u32 modcon = ltq_ebu_r32(LTQ_EBU_MODCON); -+ -+ return (((modcon & (MODCON_STS | MODCON_STSEDGE)) == -+ (MODCON_STS | MODCON_STSEDGE))); -+} -+ -+static void falcon_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) -+{ -+ struct nand_chip *this = mtd->priv; -+ unsigned long nandaddr = (unsigned long) this->IO_ADDR_W; -+ -+ if (ctrl & NAND_CTRL_CHANGE) { -+ nandaddr &= ~(NAND_ADDR_ALE | NAND_ADDR_CLE); -+ -+ if (ctrl & NAND_CLE) -+ nandaddr |= NAND_ADDR_CLE; -+ if (ctrl & NAND_ALE) -+ nandaddr |= NAND_ADDR_ALE; -+ -+ this->IO_ADDR_W = (void __iomem *) nandaddr; -+ } -+ -+ if (cmd != NAND_CMD_NONE) -+ writeb(cmd, this->IO_ADDR_W); -+} -+ -+static struct platform_nand_data falcon_nand_data = { -+ .chip = { -+ .nr_chips = 1, -+ .chip_delay = 25, -+ .part_probe_types = part_probes, -+ }, -+ .ctrl = { -+ .cmd_ctrl = falcon_hwcontrol, -+ .dev_ready = falcon_nand_ready, -+ } -+}; -+ -+static int __init falcon_register_nand(void) -+{ -+ struct device_node *node; -+ struct platform_device *pdev; -+ -+ node = of_find_compatible_node(NULL, NULL, "lantiq,nand-falcon"); -+ if (!node) -+ return -1; -+ pdev = of_find_device_by_node(node); -+ if (pdev) -+ pdev->dev.platform_data = &falcon_nand_data; -+ of_node_put(node); -+ return 0; -+} -+ -+arch_initcall(falcon_register_nand); |