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-rw-r--r--arch/arm/mach-omap2/Kconfig3
-rw-r--r--arch/arm/mach-omap2/Makefile1
-rw-r--r--arch/arm/mach-omap2/board-overo.c242
-rw-r--r--arch/arm/plat-omap/include/mach/board-overo.h26
4 files changed, 272 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 23fd1cc034a0..aef043b87b44 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -48,3 +48,6 @@ config MACH_OMAP3_BEAGLE
48 bool "OMAP3 BEAGLE board" 48 bool "OMAP3 BEAGLE board"
49 depends on ARCH_OMAP3 && ARCH_OMAP34XX 49 depends on ARCH_OMAP3 && ARCH_OMAP34XX
50 50
51config MACH_OVERO
52 bool "Gumstix Overo board"
53 depends on ARCH_OMAP3 && ARCH_OMAP34XX
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 420ad9accebf..feb9caf771d5 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -30,4 +30,5 @@ obj-$(CONFIG_MACH_OMAP_H4) += board-h4.o
30obj-$(CONFIG_MACH_OMAP_2430SDP) += board-2430sdp.o 30obj-$(CONFIG_MACH_OMAP_2430SDP) += board-2430sdp.o
31obj-$(CONFIG_MACH_OMAP_APOLLON) += board-apollon.o 31obj-$(CONFIG_MACH_OMAP_APOLLON) += board-apollon.o
32obj-$(CONFIG_MACH_OMAP3_BEAGLE) += board-omap3beagle.o 32obj-$(CONFIG_MACH_OMAP3_BEAGLE) += board-omap3beagle.o
33obj-$(CONFIG_MACH_OVERO) += board-overo.o
33 34
diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c
new file mode 100644
index 000000000000..e09aa59a399c
--- /dev/null
+++ b/arch/arm/mach-omap2/board-overo.c
@@ -0,0 +1,242 @@
1/*
2 * board-overo.c (Gumstix Overo)
3 *
4 * Initial code: Steve Sakoman <steve@sakoman.com>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18 * 02110-1301 USA
19 *
20 */
21
22#include <linux/clk.h>
23#include <linux/delay.h>
24#include <linux/err.h>
25#include <linux/init.h>
26#include <linux/io.h>
27#include <linux/kernel.h>
28#include <linux/platform_device.h>
29
30#include <linux/mtd/mtd.h>
31#include <linux/mtd/nand.h>
32#include <linux/mtd/partitions.h>
33
34#include <asm/mach-types.h>
35#include <asm/mach/arch.h>
36#include <asm/mach/flash.h>
37#include <asm/mach/map.h>
38
39#include <mach/board-overo.h>
40#include <mach/board.h>
41#include <mach/common.h>
42#include <mach/gpio.h>
43#include <mach/gpmc.h>
44#include <mach/hardware.h>
45#include <mach/nand.h>
46
47#define NAND_BLOCK_SIZE SZ_128K
48#define GPMC_CS0_BASE 0x60
49#define GPMC_CS_SIZE 0x30
50
51static struct mtd_partition overo_nand_partitions[] = {
52 {
53 .name = "xloader",
54 .offset = 0, /* Offset = 0x00000 */
55 .size = 4 * NAND_BLOCK_SIZE,
56 .mask_flags = MTD_WRITEABLE
57 },
58 {
59 .name = "uboot",
60 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
61 .size = 14 * NAND_BLOCK_SIZE,
62 },
63 {
64 .name = "uboot environment",
65 .offset = MTDPART_OFS_APPEND, /* Offset = 0x240000 */
66 .size = 2 * NAND_BLOCK_SIZE,
67 },
68 {
69 .name = "linux",
70 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
71 .size = 32 * NAND_BLOCK_SIZE,
72 },
73 {
74 .name = "rootfs",
75 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
76 .size = MTDPART_SIZ_FULL,
77 },
78};
79
80static struct omap_nand_platform_data overo_nand_data = {
81 .parts = overo_nand_partitions,
82 .nr_parts = ARRAY_SIZE(overo_nand_partitions),
83 .dma_channel = -1, /* disable DMA in OMAP NAND driver */
84};
85
86static struct resource overo_nand_resource = {
87 .flags = IORESOURCE_MEM,
88};
89
90static struct platform_device overo_nand_device = {
91 .name = "omap2-nand",
92 .id = -1,
93 .dev = {
94 .platform_data = &overo_nand_data,
95 },
96 .num_resources = 1,
97 .resource = &overo_nand_resource,
98};
99
100
101static void __init overo_flash_init(void)
102{
103 u8 cs = 0;
104 u8 nandcs = GPMC_CS_NUM + 1;
105
106 u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
107
108 /* find out the chip-select on which NAND exists */
109 while (cs < GPMC_CS_NUM) {
110 u32 ret = 0;
111 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
112
113 if ((ret & 0xC00) == 0x800) {
114 printk(KERN_INFO "Found NAND on CS%d\n", cs);
115 if (nandcs > GPMC_CS_NUM)
116 nandcs = cs;
117 }
118 cs++;
119 }
120
121 if (nandcs > GPMC_CS_NUM) {
122 printk(KERN_INFO "NAND: Unable to find configuration "
123 "in GPMC\n ");
124 return;
125 }
126
127 if (nandcs < GPMC_CS_NUM) {
128 overo_nand_data.cs = nandcs;
129 overo_nand_data.gpmc_cs_baseaddr = (void *)
130 (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
131 overo_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
132
133 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
134 if (platform_device_register(&overo_nand_device) < 0)
135 printk(KERN_ERR "Unable to register NAND device\n");
136 }
137}
138static struct omap_uart_config overo_uart_config __initdata = {
139 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
140};
141
142static int __init overo_i2c_init(void)
143{
144 /* i2c2 pins are used for gpio */
145 omap_register_i2c_bus(3, 400, NULL, 0);
146 return 0;
147}
148
149static void __init overo_init_irq(void)
150{
151 omap2_init_common_hw();
152 omap_init_irq();
153 omap_gpio_init();
154}
155
156static struct platform_device overo_lcd_device = {
157 .name = "overo_lcd",
158 .id = -1,
159};
160
161static struct omap_lcd_config overo_lcd_config __initdata = {
162 .ctrl_name = "internal",
163};
164
165static struct omap_board_config_kernel overo_config[] __initdata = {
166 { OMAP_TAG_UART, &overo_uart_config },
167 { OMAP_TAG_LCD, &overo_lcd_config },
168};
169
170static struct platform_device *overo_devices[] __initdata = {
171 &overo_lcd_device,
172};
173
174static void __init overo_init(void)
175{
176 overo_i2c_init();
177 platform_add_devices(overo_devices, ARRAY_SIZE(overo_devices));
178 omap_board_config = overo_config;
179 omap_board_config_size = ARRAY_SIZE(overo_config);
180 omap_serial_init();
181 overo_flash_init();
182
183 if ((gpio_request(OVERO_GPIO_W2W_NRESET,
184 "OVERO_GPIO_W2W_NRESET") == 0) &&
185 (gpio_direction_output(OVERO_GPIO_W2W_NRESET, 1) == 0)) {
186 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
187 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
188 udelay(10);
189 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
190 } else {
191 printk(KERN_ERR "could not obtain gpio for "
192 "OVERO_GPIO_W2W_NRESET\n");
193 }
194
195 if ((gpio_request(OVERO_GPIO_BT_XGATE, "OVERO_GPIO_BT_XGATE") == 0) &&
196 (gpio_direction_output(OVERO_GPIO_BT_XGATE, 0) == 0))
197 gpio_export(OVERO_GPIO_BT_XGATE, 0);
198 else
199 printk(KERN_ERR "could not obtain gpio for OVERO_GPIO_BT_XGATE\n");
200
201 if ((gpio_request(OVERO_GPIO_BT_NRESET, "OVERO_GPIO_BT_NRESET") == 0) &&
202 (gpio_direction_output(OVERO_GPIO_BT_NRESET, 1) == 0)) {
203 gpio_export(OVERO_GPIO_BT_NRESET, 0);
204 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
205 mdelay(6);
206 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
207 } else {
208 printk(KERN_ERR "could not obtain gpio for "
209 "OVERO_GPIO_BT_NRESET\n");
210 }
211
212 if ((gpio_request(OVERO_GPIO_USBH_CPEN, "OVERO_GPIO_USBH_CPEN") == 0) &&
213 (gpio_direction_output(OVERO_GPIO_USBH_CPEN, 1) == 0))
214 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
215 else
216 printk(KERN_ERR "could not obtain gpio for "
217 "OVERO_GPIO_USBH_CPEN\n");
218
219 if ((gpio_request(OVERO_GPIO_USBH_NRESET,
220 "OVERO_GPIO_USBH_NRESET") == 0) &&
221 (gpio_direction_output(OVERO_GPIO_USBH_NRESET, 1) == 0))
222 gpio_export(OVERO_GPIO_USBH_NRESET, 0);
223 else
224 printk(KERN_ERR "could not obtain gpio for "
225 "OVERO_GPIO_USBH_NRESET\n");
226}
227
228static void __init overo_map_io(void)
229{
230 omap2_set_globals_343x();
231 omap2_map_common_io();
232}
233
234MACHINE_START(OVERO, "Gumstix Overo")
235 .phys_io = 0x48000000,
236 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
237 .boot_params = 0x80000100,
238 .map_io = overo_map_io,
239 .init_irq = overo_init_irq,
240 .init_machine = overo_init,
241 .timer = &omap_timer,
242MACHINE_END
diff --git a/arch/arm/plat-omap/include/mach/board-overo.h b/arch/arm/plat-omap/include/mach/board-overo.h
new file mode 100644
index 000000000000..7ecae66966d1
--- /dev/null
+++ b/arch/arm/plat-omap/include/mach/board-overo.h
@@ -0,0 +1,26 @@
1/*
2 * board-overo.h (Gumstix Overo)
3 *
4 * Initial code: Steve Sakoman <steve@sakoman.com>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 * You should have received a copy of the GNU General Public License along
12 * with this program; if not, write to the Free Software Foundation, Inc.,
13 * 675 Mass Ave, Cambridge, MA 02139, USA.
14 */
15
16#ifndef __ASM_ARCH_OVERO_H
17#define __ASM_ARCH_OVERO_H
18
19#define OVERO_GPIO_BT_XGATE 15
20#define OVERO_GPIO_W2W_NRESET 16
21#define OVERO_GPIO_BT_NRESET 164
22#define OVERO_GPIO_USBH_CPEN 168
23#define OVERO_GPIO_USBH_NRESET 183
24
25#endif /* ____ASM_ARCH_OVERO_H */
26
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-25 15:38:22 -0500