powerpc/44x: Warp patches for the new NDFC driver

Convert the Warp platform to use the newly merged NDFC driver

- warp.dts changed to work with ndfc
- warp-nand.c no longer needed
- removed obsolete rev A support from cuboot-warp.c
Signed-off-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

arch/powerpc/boot/cuboot-warp.c

@@ -18,57 +18,14 @@
 
 static bd_t bd;
 
-static void warp_fixup_one_nor(u32 from, u32 to)
-{
-	void *devp;
-	char name[50];
-	u32 v[2];
-
-	sprintf(name, "/plb/opb/ebc/nor_flash@0,0/partition@%x", from);
-
-	devp = finddevice(name);
-	if (!devp)
-		return;
-
-	if (getprop(devp, "reg", v, sizeof(v)) == sizeof(v)) {
-		v[0] = to;
-		setprop(devp, "reg", v, sizeof(v));
-
-		printf("NOR 64M fixup %x -> %x\r\n", from, to);
-	}
-}
-
-
 static void warp_fixups(void)
 {
 	ibm440ep_fixup_clocks(66000000, 11059200, 50000000);
 	ibm4xx_sdram_fixup_memsize();
 	ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
 	dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
-
-	/* Fixup for 64M flash on Rev A boards. */
-	if (bd.bi_flashsize == 0x4000000) {
-		void *devp;
-		u32 v[3];
-
-		devp = finddevice("/plb/opb/ebc/nor_flash@0,0");
-		if (!devp)
-			return;
-
-		/* Fixup the size */
-		if (getprop(devp, "reg", v, sizeof(v)) == sizeof(v)) {
-			v[2] = bd.bi_flashsize;
-			setprop(devp, "reg", v, sizeof(v));
-		}
-
-		/* Fixup parition offsets */
-		warp_fixup_one_nor(0x300000, 0x3f00000);
-		warp_fixup_one_nor(0x340000, 0x3f40000);
-		warp_fixup_one_nor(0x380000, 0x3f80000);
-	}
 }
 
-
 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 		   unsigned long r6, unsigned long r7)
 {

arch/powerpc/boot/dts/warp.dts

@@ -149,12 +149,17 @@ fpga@2,4000 {
 					reg = <0x00000002 0x00004000 0x00000A00>;
 				};
 
-				nor_flash@0,0 {
+				nor@0,0 {
 					compatible = "amd,s29gl032a", "cfi-flash";
 					bank-width = <2>;
 					reg = <0x00000000 0x00000000 0x00400000>;
 					#address-cells = <1>;
 					#size-cells = <1>;
+
+					partition@0 {
+						label = "splash";
+						reg = <0x00000000 0x00020000>;
+					};
 					partition@300000 {
 						label = "fpga";
 						reg = <0x0300000 0x00040000>;
@@ -168,6 +173,41 @@ partition@380000 {
 						reg = <0x0380000 0x00080000>;
 					};
 				};
+
+				ndfc@1,0 {
+					compatible = "ibm,ndfc";
+					reg = <0x00000001 0x00000000 0x00002000>;
+					ccr = <0x00001000>;
+					bank-settings = <0x80002222>;
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					nand {
+						#address-cells = <1>;
+						#size-cells = <1>;
+
+						partition@0 {
+							label = "kernel";
+							reg = <0x00000000 0x00200000>;
+						};
+						partition@200000 {
+							label = "root";
+							reg = <0x00200000 0x03E00000>;
+						};
+						partition@40000000 {
+							label = "persistent";
+							reg = <0x04000000 0x04000000>;
+						};
+						partition@80000000 {
+							label = "persistent1";
+							reg = <0x08000000 0x04000000>;
+						};
+						partition@C0000000 {
+							label = "persistent2";
+							reg = <0x0C000000 0x04000000>;
+						};
+					};
+				};
 			};
 
 			UART0: serial@ef600300 {

arch/powerpc/platforms/44x/Makefile

@@ -3,5 +3,4 @@ obj-$(CONFIG_PPC44x_SIMPLE) += ppc44x_simple.o
 obj-$(CONFIG_EBONY)	+= ebony.o
 obj-$(CONFIG_SAM440EP) 	+= sam440ep.o
 obj-$(CONFIG_WARP)	+= warp.o
-obj-$(CONFIG_WARP)	+= warp-nand.o
 obj-$(CONFIG_XILINX_VIRTEX_5_FXT) += virtex.o

arch/powerpc/platforms/44x/warp-nand.c

-/*
- * PIKA Warp(tm) NAND flash specific routines
- *
- * Copyright (c) 2008 PIKA Technologies
- *   Sean MacLennan <smaclennan@pikatech.com>
- */
-
-#include <linux/platform_device.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/ndfc.h>
-#include <linux/of.h>
-#include <asm/machdep.h>
-
-
-#ifdef CONFIG_MTD_NAND_NDFC
-
-#define CS_NAND_0	1	/* use chip select 1 for NAND device 0 */
-
-#define WARP_NAND_FLASH_REG_ADDR	0xD0000000UL
-#define WARP_NAND_FLASH_REG_SIZE	0x2000
-
-static struct resource warp_ndfc = {
-	.start = WARP_NAND_FLASH_REG_ADDR,
-	.end   = WARP_NAND_FLASH_REG_ADDR + WARP_NAND_FLASH_REG_SIZE - 1,
-	.flags = IORESOURCE_MEM,
-};
-
-static struct mtd_partition nand_parts[] = {
-	{
-		.name   = "kernel",
-		.offset = 0,
-		.size   = 0x0200000
-	},
-	{
-		.name   = "root",
-		.offset = 0x0200000,
-		.size   = 0x3E00000
-	},
-	{
-		.name   = "persistent",
-		.offset = 0x4000000,
-		.size   = 0x4000000
-	},
-	{
-		.name   = "persistent1",
-		.offset = 0x8000000,
-		.size   = 0x4000000
-	},
-	{
-		.name   = "persistent2",
-		.offset = 0xC000000,
-		.size   = 0x4000000
-	}
-};
-
-struct ndfc_controller_settings warp_ndfc_settings = {
-	.ccr_settings = (NDFC_CCR_BS(CS_NAND_0) | NDFC_CCR_ARAC1),
-	.ndfc_erpn = 0,
-};
-
-static struct ndfc_chip_settings warp_chip0_settings = {
-	.bank_settings = 0x80002222,
-};
-
-struct platform_nand_ctrl warp_nand_ctrl = {
-	.priv = &warp_ndfc_settings,
-};
-
-static struct platform_device warp_ndfc_device = {
-	.name = "ndfc-nand",
-	.id = 0,
-	.dev = {
-		.platform_data = &warp_nand_ctrl,
-	},
-	.num_resources = 1,
-	.resource = &warp_ndfc,
-};
-
-/* Do NOT set the ecclayout: let it default so it is correct for both
- * 64M and 256M flash chips.
- */
-static struct platform_nand_chip warp_nand_chip0 = {
-	.nr_chips = 1,
-	.chip_offset = CS_NAND_0,
-	.nr_partitions = ARRAY_SIZE(nand_parts),
-	.partitions = nand_parts,
-	.chip_delay = 20,
-	.priv = &warp_chip0_settings,
-};
-
-static struct platform_device warp_nand_device = {
-	.name = "ndfc-chip",
-	.id = 0,
-	.num_resources = 0,
-	.dev = {
-		.platform_data = &warp_nand_chip0,
-		.parent = &warp_ndfc_device.dev,
-	}
-};
-
-static int warp_setup_nand_flash(void)
-{
-	struct device_node *np;
-
-	/* Try to detect a rev A based on NOR size. */
-	np = of_find_compatible_node(NULL, NULL, "cfi-flash");
-	if (np) {
-		struct property *pp;
-
-		pp = of_find_property(np, "reg", NULL);
-		if (pp && (pp->length == 12)) {
-			u32 *v = pp->value;
-			if (v[2] == 0x4000000) {
-				/* Rev A = 64M NAND */
-				warp_nand_chip0.nr_partitions = 3;
-
-				nand_parts[1].size   = 0x3000000;
-				nand_parts[2].offset = 0x3200000;
-				nand_parts[2].size   = 0x0e00000;
-			}
-		}
-		of_node_put(np);
-	}
-
-	platform_device_register(&warp_ndfc_device);
-	platform_device_register(&warp_nand_device);
-
-	return 0;
-}
-machine_device_initcall(warp, warp_setup_nand_flash);
-
-#endif