Root/target/linux/lantiq/patches/0008-MIPS-lantiq-add-support-for-the-EASY98000-evaluation.patch

1From ec6ba0f79c010a878d679c057fb6306b50a201b0 Mon Sep 17 00:00:00 2001
2From: John Crispin <blogic@openwrt.org>
3Date: Thu, 11 Aug 2011 14:09:35 +0200
4Subject: [PATCH 08/24] MIPS: lantiq: add support for the EASY98000 evaluation
5 board
6
7This patch adds the machine code for the EASY9800 evaluation board.
8
9Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
10Signed-off-by: John Crispin <blogic@openwrt.org>
11Cc: linux-mips@linux-mips.org
12---
13 arch/mips/lantiq/falcon/Kconfig | 11 +++
14 arch/mips/lantiq/falcon/Makefile | 1 +
15 arch/mips/lantiq/falcon/mach-easy98000.c | 110 ++++++++++++++++++++++++++++++
16 arch/mips/lantiq/machtypes.h | 5 ++
17 4 files changed, 127 insertions(+), 0 deletions(-)
18 create mode 100644 arch/mips/lantiq/falcon/Kconfig
19 create mode 100644 arch/mips/lantiq/falcon/mach-easy98000.c
20
21--- /dev/null
22+++ b/arch/mips/lantiq/falcon/Kconfig
23@@ -0,0 +1,11 @@
24+if SOC_FALCON
25+
26+menu "MIPS Machine"
27+
28+config LANTIQ_MACH_EASY98000
29+ bool "Easy98000"
30+ default y
31+
32+endmenu
33+
34+endif
35--- a/arch/mips/lantiq/falcon/Makefile
36+++ b/arch/mips/lantiq/falcon/Makefile
37@@ -1 +1,2 @@
38 obj-y := clk.o prom.o reset.o sysctrl.o devices.o gpio.o
39+obj-$(CONFIG_LANTIQ_MACH_EASY98000) += mach-easy98000.o
40--- /dev/null
41+++ b/arch/mips/lantiq/falcon/mach-easy98000.c
42@@ -0,0 +1,110 @@
43+/*
44+ * This program is free software; you can redistribute it and/or modify it
45+ * under the terms of the GNU General Public License version 2 as published
46+ * by the Free Software Foundation.
47+ *
48+ * Copyright (C) 2011 Thomas Langer <thomas.langer@lantiq.com>
49+ * Copyright (C) 2011 John Crispin <blogic@openwrt.org>
50+ */
51+
52+#include <linux/platform_device.h>
53+#include <linux/mtd/partitions.h>
54+#include <linux/spi/spi.h>
55+#include <linux/spi/spi_gpio.h>
56+#include <linux/spi/eeprom.h>
57+
58+#include "../machtypes.h"
59+
60+#include "devices.h"
61+
62+static struct mtd_partition easy98000_nor_partitions[] = {
63+ {
64+ .name = "uboot",
65+ .offset = 0x0,
66+ .size = 0x40000,
67+ },
68+ {
69+ .name = "uboot_env",
70+ .offset = 0x40000,
71+ .size = 0x40000, /* 2 sectors for redundant env. */
72+ },
73+ {
74+ .name = "linux",
75+ .offset = 0x80000,
76+ .size = 0xF80000, /* map only 16 MiB */
77+ },
78+};
79+
80+struct physmap_flash_data easy98000_nor_flash_data = {
81+ .nr_parts = ARRAY_SIZE(easy98000_nor_partitions),
82+ .parts = easy98000_nor_partitions,
83+};
84+
85+/* setup gpio based spi bus/device for access to the eeprom on the board */
86+#define SPI_GPIO_MRST 102
87+#define SPI_GPIO_MTSR 103
88+#define SPI_GPIO_CLK 104
89+#define SPI_GPIO_CS0 105
90+#define SPI_GPIO_CS1 106
91+#define SPI_GPIO_BUS_NUM 1
92+
93+static struct spi_gpio_platform_data easy98000_spi_gpio_data = {
94+ .sck = SPI_GPIO_CLK,
95+ .mosi = SPI_GPIO_MTSR,
96+ .miso = SPI_GPIO_MRST,
97+ .num_chipselect = 2,
98+};
99+
100+static struct platform_device easy98000_spi_gpio_device = {
101+ .name = "spi_gpio",
102+ .id = SPI_GPIO_BUS_NUM,
103+ .dev.platform_data = &easy98000_spi_gpio_data,
104+};
105+
106+static struct spi_eeprom at25160n = {
107+ .byte_len = 16 * 1024 / 8,
108+ .name = "at25160n",
109+ .page_size = 32,
110+ .flags = EE_ADDR2,
111+};
112+
113+static struct spi_board_info easy98000_spi_gpio_devices __initdata = {
114+ .modalias = "at25",
115+ .bus_num = SPI_GPIO_BUS_NUM,
116+ .max_speed_hz = 1000 * 1000,
117+ .mode = SPI_MODE_3,
118+ .chip_select = 1,
119+ .controller_data = (void *) SPI_GPIO_CS1,
120+ .platform_data = &at25160n,
121+};
122+
123+static void __init
124+easy98000_init_common(void)
125+{
126+ spi_register_board_info(&easy98000_spi_gpio_devices, 1);
127+ platform_device_register(&easy98000_spi_gpio_device);
128+}
129+
130+static void __init
131+easy98000_init(void)
132+{
133+ easy98000_init_common();
134+ ltq_register_nor(&easy98000_nor_flash_data);
135+}
136+
137+static void __init
138+easy98000nand_init(void)
139+{
140+ easy98000_init_common();
141+ falcon_register_nand();
142+}
143+
144+MIPS_MACHINE(LANTIQ_MACH_EASY98000,
145+ "EASY98000",
146+ "EASY98000 Eval Board",
147+ easy98000_init);
148+
149+MIPS_MACHINE(LANTIQ_MACH_EASY98000NAND,
150+ "EASY98000NAND",
151+ "EASY98000 Eval Board (NAND Flash)",
152+ easy98000nand_init);
153--- a/arch/mips/lantiq/machtypes.h
154+++ b/arch/mips/lantiq/machtypes.h
155@@ -15,6 +15,11 @@ enum lantiq_mach_type {
156     LTQ_MACH_GENERIC = 0,
157     LTQ_MACH_EASY50712, /* Danube evaluation board */
158     LTQ_MACH_EASY50601, /* Amazon SE evaluation board */
159+
160+ /* FALCON */
161+ LANTIQ_MACH_EASY98000, /* Falcon Eval Board, NOR Flash */
162+ LANTIQ_MACH_EASY98000SF, /* Falcon Eval Board, Serial Flash */
163+ LANTIQ_MACH_EASY98000NAND, /* Falcon Eval Board, NAND Flash */
164 };
165 
166 #endif
167

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