MIPS: SEAD3: Probe parallel flash via DT

Probe the system parallel flash using device tree rather than platform
code, in order to reduce the amount of the latter.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14053/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/boot/dts/mti/sead3.dts b/arch/mips/boot/dts/mti/sead3.dts
index 49f57c281812670f7045523b4c15ce4b3af83597..8844cc0066769bdfff22b36a3b68e1804cb7cd22 100644 (file)
--- a/arch/mips/boot/dts/mti/sead3.dts
+++ b/arch/mips/boot/dts/mti/sead3.dts
@@ -69,6 +69,30 @@
                has-transaction-translator;
        };
 
+       flash@1c000000 {
+               compatible = "intel,28f128j3", "cfi-flash";
+               reg = <0x1c000000 0x2000000>;
+               #address-cells = <1>;
+               #size-cells = <1>;
+               bank-width = <4>;
+
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       user-fs@0 {
+                               label = "User FS";
+                               reg = <0x0 0x1fc0000>;
+                       };
+
+                       board-config@3e0000 {
+                               label = "Board Config";
+                               reg = <0x1fc0000 0x40000>;
+                       };
+               };
+       };
+
        /* UART connected to FTDI & miniUSB socket */
        uart0: uart@1f000900 {
                compatible = "ns16550a";

diff --git a/arch/mips/mti-sead3/sead3-platform.c b/arch/mips/mti-sead3/sead3-platform.c
index 21047b596af8e23ccbc781b34cc540251f26c1e1..5c1f42a23ac5f0bfae3eff211b043a5156990c31 100644 (file)
--- a/arch/mips/mti-sead3/sead3-platform.c
+++ b/arch/mips/mti-sead3/sead3-platform.c
@@ -8,44 +8,8 @@
 #include <linux/dma-mapping.h>
 #include <linux/init.h>
 #include <linux/leds.h>
-#include <linux/mtd/physmap.h>
 #include <linux/platform_device.h>
 
-static struct mtd_partition sead3_mtd_partitions[] = {
-       {
-               .name =         "User FS",
-               .offset =       0x00000000,
-               .size =         0x01fc0000,
-       }, {
-               .name =         "Board Config",
-               .offset =       0x01fc0000,
-               .size =         0x00040000,
-               .mask_flags =   MTD_WRITEABLE
-       },
-};
-
-static struct physmap_flash_data sead3_flash_data = {
-       .width          = 4,
-       .nr_parts       = ARRAY_SIZE(sead3_mtd_partitions),
-       .parts          = sead3_mtd_partitions
-};
-
-static struct resource sead3_flash_resource = {
-       .start          = 0x1c000000,
-       .end            = 0x1dffffff,
-       .flags          = IORESOURCE_MEM
-};
-
-static struct platform_device sead3_flash = {
-       .name           = "physmap-flash",
-       .id             = 0,
-       .dev            = {
-               .platform_data  = &sead3_flash_data,
-       },
-       .num_resources  = 1,
-       .resource       = &sead3_flash_resource,
-};
-
 #define LEDFLAGS(bits, shift)          \
        ((bits << 8) | (shift << 8))
 
@@ -113,7 +77,6 @@ static struct platform_device sead3_led_device = {
 };
 
 static struct platform_device *sead3_platform_devices[] __initdata = {
-       &sead3_flash,
        &pled_device,
        &fled_device,
        &sead3_led_device,