From 3aefc6554ad95f64de5ab384a959f96eb188f273 Mon Sep 17 00:00:00 2001
From: Paul Burton <paul.burton@imgtec.com>
Date: Fri, 26 Aug 2016 15:17:40 +0100
Subject: [PATCH] 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>
---
arch/mips/boot/dts/mti/sead3.dts | 24 ++++++++++++++++++
arch/mips/mti-sead3/sead3-platform.c | 37 ----------------------------
2 files changed, 24 insertions(+), 37 deletions(-)
diff --git a/arch/mips/boot/dts/mti/sead3.dts b/arch/mips/boot/dts/mti/sead3.dts
index 49f57c28181267..8844cc0066769b 100644
--- 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 21047b596af8e2..5c1f42a23ac5f0 100644
--- 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,
--
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