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>

4 files changed, 41 insertions, 180 deletions

diff --git a/arch/powerpc/boot/cuboot-warp.c b/arch/powerpc/boot/cuboot-warp.c
index 21780210057d..806df693fea6 100644
--- a/arch/powerpc/boot/cuboot-warp.c
+++ b/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)
 {
diff --git a/arch/powerpc/boot/dts/warp.dts b/arch/powerpc/boot/dts/warp.dts
index f4e4ba69eef7..7e183ff9a317 100644
--- a/arch/powerpc/boot/dts/warp.dts
+++ b/arch/powerpc/boot/dts/warp.dts
@@ -149,12 +149,17 @@
                                         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 @@
                                                 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 {
diff --git a/arch/powerpc/platforms/44x/Makefile b/arch/powerpc/platforms/44x/Makefile
index 698133180aee..01f51daace13 100644
--- a/arch/powerpc/platforms/44x/Makefile
+++ b/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
diff --git a/arch/powerpc/platforms/44x/warp-nand.c b/arch/powerpc/platforms/44x/warp-nand.c
deleted file mode 100644
index 89ecd76127d8..000000000000
--- a/arch/powerpc/platforms/44x/warp-nand.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * 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