ar71xx: add device registration code for the AR934x NAND flash controller

SVN-Revision: 33387

7 files changed, 141 insertions, 7 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/dev-nfc.c b/target/linux/ar71xx/files/arch/mips/ath79/dev-nfc.c
new file mode 100644
index 0000000000..f330395fe2
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/dev-nfc.c
@@ -0,0 +1,95 @@
+/*
+ *  Atheros AR934X SoCs built-in NAND flash controller support
+ *
+ *  Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/dma-mapping.h>
+#include <linux/etherdevice.h>
+#include <linux/platform_device.h>
+#include <linux/platform/ar934x_nfc.h>
+
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+
+#include "dev-nfc.h"
+
+static struct resource ath79_nfc_resources[2];
+static u64 ar934x_nfc_dmamask = DMA_BIT_MASK(32);
+static struct ar934x_nfc_platform_data ath79_nfc_data;
+
+static struct platform_device ath79_nfc_device = {
+	.name		= AR934X_NFC_DRIVER_NAME,
+	.id		= -1,
+	.resource	= ath79_nfc_resources,
+	.num_resources	= ARRAY_SIZE(ath79_nfc_resources),
+	.dev = {
+		.dma_mask = &ar934x_nfc_dmamask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.platform_data = &ath79_nfc_data,
+	},
+};
+
+static void ar934x_nfc_hw_reset(bool active)
+{
+	if (active) {
+		ath79_device_reset_set(AR934X_RESET_NANDF);
+		udelay(100);
+
+		ath79_device_reset_set(AR934X_RESET_ETH_SWITCH_ANALOG);
+		udelay(250);
+	} else {
+		ath79_device_reset_clear(AR934X_RESET_ETH_SWITCH_ANALOG);
+		udelay(250);
+
+		ath79_device_reset_clear(AR934X_RESET_NANDF);
+		udelay(100);
+	}
+}
+
+static void ar934x_nfc_setup(void)
+{
+	ath79_nfc_resources[0].start = AR934X_NFC_BASE;
+	ath79_nfc_resources[0].end = AR934X_NFC_BASE + AR934X_NFC_SIZE - 1;
+	ath79_nfc_resources[0].flags = IORESOURCE_MEM;
+
+	ath79_nfc_resources[1].start = ATH79_MISC_IRQ(21);
+	ath79_nfc_resources[1].end = ATH79_MISC_IRQ(21);
+	ath79_nfc_resources[1].flags = IORESOURCE_IRQ;
+
+	ath79_nfc_data.hw_reset = ar934x_nfc_hw_reset;
+
+	platform_device_register(&ath79_nfc_device);
+}
+
+void __init ath79_nfc_set_select_chip(void (*f)(int chip_no))
+{
+	ath79_nfc_data.select_chip = f;
+}
+
+void __init ath79_nfc_set_scan_fixup(int (*f)(struct mtd_info *mtd))
+{
+	ath79_nfc_data.scan_fixup = f;
+}
+
+void __init ath79_nfc_set_parts(struct mtd_partition *parts, int nr_parts)
+{
+	ath79_nfc_data.parts = parts;
+	ath79_nfc_data.nr_parts = nr_parts;
+}
+
+void __init ath79_register_nfc(void)
+{
+	if (soc_is_ar934x())
+		ar934x_nfc_setup();
+	else
+		BUG();
+}
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/dev-nfc.h b/target/linux/ar71xx/files/arch/mips/ath79/dev-nfc.h
new file mode 100644
index 0000000000..1fc4b807b1
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/dev-nfc.h
@@ -0,0 +1,27 @@
+/*
+ *  Atheros AR934X SoCs built-in NAND Flash Controller support
+ *
+ *  Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  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.
+ */
+
+#ifndef _ATH79_DEV_NFC_H
+#define _ATH79_DEV_NFC_H
+
+#ifdef CONFIG_ATH79_DEV_NFC
+void ath79_nfc_set_parts(struct mtd_partition *parts, int nr_parts);
+void ath79_nfc_set_select_chip(void (*f)(int chip_no));
+void ath79_nfc_set_scan_fixup(int (*f)(struct mtd_info *mtd));
+void ath79_register_nfc(void);
+#else
+static inline void ath79_nfc_set_parts(struct mtd_partition *parts,
+				       int nr_parts) {}
+static inline void ath79_nfc_set_select_chip(void (*f)(int chip_no)) {}
+static inline void ath79_nfc_set_scan_fixup(int (*f)(struct mtd_info *mtd)) {}
+static inline void ath79_register_nfc(void) {}
+#endif
+
+#endif /* _ATH79_DEV_NFC_H */
diff --git a/target/linux/ar71xx/patches-3.3/602-MIPS-ath79-add-openwrt-stuff.patch b/target/linux/ar71xx/patches-3.3/602-MIPS-ath79-add-openwrt-stuff.patch
index 3c96819df4..e61496fcd4 100644
--- a/target/linux/ar71xx/patches-3.3/602-MIPS-ath79-add-openwrt-stuff.patch
+++ b/target/linux/ar71xx/patches-3.3/602-MIPS-ath79-add-openwrt-stuff.patch
@@ -21,7 +21,18 @@
  config PCI_AR724X
  	def_bool n
  
-@@ -125,4 +139,13 @@ config ATH79_DEV_WMAC
+@@ -115,6 +129,10 @@ config ATH79_DEV_GPIO_BUTTONS
+ config ATH79_DEV_LEDS_GPIO
+ 	def_bool n
+ 
++config ATH79_DEV_NFC
++	depends on (SOC_AR934X)
++	def_bool n
++
+ config ATH79_DEV_SPI
+ 	def_bool n
+ 
+@@ -125,4 +143,13 @@ config ATH79_DEV_WMAC
  	depends on (SOC_AR913X || SOC_AR933X || SOC_AR934X || SOC_QCA955X)
  	def_bool n
  
@@ -37,7 +48,7 @@
  endif
 --- a/arch/mips/ath79/Makefile
 +++ b/arch/mips/ath79/Makefile
-@@ -17,13 +17,24 @@ obj-$(CONFIG_PCI)			+= pci.o
+@@ -17,13 +17,25 @@ obj-$(CONFIG_PCI)			+= pci.o
  # Devices
  #
  obj-y					+= dev-common.o
@@ -47,6 +58,7 @@
  obj-$(CONFIG_ATH79_DEV_GPIO_BUTTONS)	+= dev-gpio-buttons.o
  obj-$(CONFIG_ATH79_DEV_LEDS_GPIO)	+= dev-leds-gpio.o
 +obj-$(CONFIG_ATH79_DEV_M25P80)		+= dev-m25p80.o
++obj-$(CONFIG_ATH79_DEV_NFC)		+= dev-nfc.o
  obj-$(CONFIG_ATH79_DEV_SPI)		+= dev-spi.o
  obj-$(CONFIG_ATH79_DEV_USB)		+= dev-usb.o
  obj-$(CONFIG_ATH79_DEV_WMAC)		+= dev-wmac.o
diff --git a/target/linux/ar71xx/patches-3.3/610-MIPS-ath79-openwrt-machines.patch b/target/linux/ar71xx/patches-3.3/610-MIPS-ath79-openwrt-machines.patch
index 59eeee0699..a5fed12f3c 100644
--- a/target/linux/ar71xx/patches-3.3/610-MIPS-ath79-openwrt-machines.patch
+++ b/target/linux/ar71xx/patches-3.3/610-MIPS-ath79-openwrt-machines.patch
@@ -671,7 +671,7 @@
  	def_bool n
  
  config ATH79_DEV_GPIO_BUTTONS
-@@ -156,4 +671,7 @@ config ATH79_PCI_ATH9K_FIXUP
+@@ -160,4 +675,7 @@ config ATH79_PCI_ATH9K_FIXUP
  config ATH79_ROUTERBOOT
  	def_bool n
  
@@ -681,7 +681,7 @@
  endif
 --- a/arch/mips/ath79/Makefile
 +++ b/arch/mips/ath79/Makefile
-@@ -37,9 +37,62 @@ obj-$(CONFIG_ATH79_ROUTERBOOT)		+= route
+@@ -38,9 +38,62 @@ obj-$(CONFIG_ATH79_ROUTERBOOT)		+= route
  #
  # Machines
  #
diff --git a/target/linux/ar71xx/patches-3.3/611-TEW-712BR-support.patch b/target/linux/ar71xx/patches-3.3/611-TEW-712BR-support.patch
index 319f1f5ce7..cd39f52969 100644
--- a/target/linux/ar71xx/patches-3.3/611-TEW-712BR-support.patch
+++ b/target/linux/ar71xx/patches-3.3/611-TEW-712BR-support.patch
@@ -19,7 +19,7 @@
  	select SOC_AR71XX
 --- a/arch/mips/ath79/Makefile
 +++ b/arch/mips/ath79/Makefile
-@@ -68,6 +68,7 @@ obj-$(CONFIG_ATH79_MACH_RB750)		+= mach-
+@@ -69,6 +69,7 @@ obj-$(CONFIG_ATH79_MACH_RB750)		+= mach-
  obj-$(CONFIG_ATH79_MACH_RW2458N)	+= mach-rw2458n.o
  obj-$(CONFIG_ATH79_MACH_TEW_632BRP)	+= mach-tew-632brp.o
  obj-$(CONFIG_ATH79_MACH_TEW_673GRU)	+= mach-tew-673gru.o
diff --git a/target/linux/ar71xx/patches-3.3/612-ALL0315N-support.patch b/target/linux/ar71xx/patches-3.3/612-ALL0315N-support.patch
index fafb112400..7dedc04103 100644
--- a/target/linux/ar71xx/patches-3.3/612-ALL0315N-support.patch
+++ b/target/linux/ar71xx/patches-3.3/612-ALL0315N-support.patch
@@ -18,7 +18,7 @@
  	select SOC_AR724X
 --- a/arch/mips/ath79/Makefile
 +++ b/arch/mips/ath79/Makefile
-@@ -40,6 +40,7 @@ obj-$(CONFIG_ATH79_ROUTERBOOT)		+= route
+@@ -41,6 +41,7 @@ obj-$(CONFIG_ATH79_ROUTERBOOT)		+= route
  obj-$(CONFIG_ATH79_MACH_ALFA_AP96)	+= mach-alfa-ap96.o
  obj-$(CONFIG_ATH79_MACH_ALFA_NX)	+= mach-alfa-nx.o
  obj-$(CONFIG_ATH79_MACH_ALL0258N)	+= mach-all0258n.o
diff --git a/target/linux/ar71xx/patches-3.3/613-RB2011-support.patch b/target/linux/ar71xx/patches-3.3/613-RB2011-support.patch
index be2b144c74..656d5f8b59 100644
--- a/target/linux/ar71xx/patches-3.3/613-RB2011-support.patch
+++ b/target/linux/ar71xx/patches-3.3/613-RB2011-support.patch
@@ -24,7 +24,7 @@
  	ATH79_MACH_TEW_673GRU,		/* TRENDnet TEW-673GRU */
 --- a/arch/mips/ath79/Makefile
 +++ b/arch/mips/ath79/Makefile
-@@ -66,6 +66,7 @@ obj-$(CONFIG_ATH79_MACH_PB44)		+= mach-p
+@@ -67,6 +67,7 @@ obj-$(CONFIG_ATH79_MACH_PB44)		+= mach-p
  obj-$(CONFIG_ATH79_MACH_PB92)		+= mach-pb92.o
  obj-$(CONFIG_ATH79_MACH_RB4XX)		+= mach-rb4xx.o
  obj-$(CONFIG_ATH79_MACH_RB750)		+= mach-rb750.o