[alsa-devel] [PATCH 1/4] ARM: OMAP2: Add support for the Gumstix Overo board
sakoman at gmail.com
sakoman at gmail.com
Mon Sep 1 23:57:56 CEST 2008
From: Steve Sakoman <steve at sakoman.com>
This patch adds support for basic features: onenand, uarts, i2c,
mmc, rtc, lcd and usb
Signed-off-by: Steve Sakoman <steve at sakoman.com>
---
arch/arm/mach-omap2/Kconfig | 4 +
arch/arm/mach-omap2/Makefile | 4 +
arch/arm/mach-omap2/board-overo.c | 236 +++++++++++++++++++++++++
arch/arm/plat-omap/include/mach/board-overo.h | 22 +++
arch/arm/plat-omap/include/mach/hardware.h | 4 +
drivers/video/omap/Kconfig | 21 +++
drivers/video/omap/Makefile | 1 +
drivers/video/omap/lcd_overo.c | 189 ++++++++++++++++++++
8 files changed, 481 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-omap2/board-overo.c
create mode 100644 arch/arm/plat-omap/include/mach/board-overo.h
create mode 100644 drivers/video/omap/lcd_overo.c
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 365b982..362edfa 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -123,6 +123,10 @@ config MACH_OMAP3_BEAGLE
bool "OMAP3 BEAGLE board"
depends on ARCH_OMAP3 && ARCH_OMAP34XX
+config MACH_OVERO
+ bool "Gumstix Overo board"
+ depends on ARCH_OMAP3 && ARCH_OMAP34XX
+
config OMAP_TICK_GPTIMER
int "GPTIMER used for system tick timer"
depends on ARCH_OMAP2 || ARCH_OMAP3
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index d89b7cb..1f6c704 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -75,6 +75,10 @@ obj-$(CONFIG_MACH_NOKIA_N800) += board-n800.o board-n800-flash.o \
board-n800-dsp.o \
board-n800-camera.o
obj-$(CONFIG_MACH_NOKIA_N810) += board-n810.o
+obj-$(CONFIG_MACH_OVERO) += board-overo.o \
+ hsmmc.o \
+ usb-musb.o \
+ usb-ehci.o
# TUSB 6010 chips
obj-$(CONFIG_MACH_OMAP2_TUSB6010) += usb-tusb6010.o
diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c
new file mode 100644
index 0000000..85f5db2
--- /dev/null
+++ b/arch/arm/mach-omap2/board-overo.c
@@ -0,0 +1,236 @@
+/*
+ * board-overo.c (Gumstix Overo)
+ *
+ * Initial code: Steve Sakoman <steve at sakoman.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/onenand_regs.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/mach/map.h>
+
+#include <mach/board.h>
+#include <mach/common.h>
+#include <mach/gpio.h>
+#include <mach/gpmc.h>
+#include <mach/hardware.h>
+#include <mach/hsmmc.h>
+#include <mach/onenand.h>
+#include <mach/usb-ehci.h>
+#include <mach/usb-musb.h>
+
+#include "sdram-micron-mt46h32m32lf-6.h"
+
+#define NAND_BLOCK_SIZE SZ_128K
+
+#define W2W_NRESET 16
+#define BT_NRESET 164
+#define USBH_CPEN 168
+#define USBH_NRESET 183
+
+static struct mtd_partition overo_onenand_partitions[] = {
+ {
+ .name = "xloader",
+ .offset = 0,
+ .size = 4 * NAND_BLOCK_SIZE,
+ .mask_flags = MTD_WRITEABLE
+ },
+ {
+ .name = "uboot",
+ .offset = MTDPART_OFS_APPEND,
+ .size = 15 * NAND_BLOCK_SIZE,
+ },
+ {
+ .name = "params",
+ .offset = MTDPART_OFS_APPEND,
+ .size = 1 * NAND_BLOCK_SIZE,
+ },
+ {
+ .name = "linux",
+ .offset = MTDPART_OFS_APPEND,
+ .size = 40 * NAND_BLOCK_SIZE,
+ },
+ {
+ .name = "jffs2",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+static struct omap_onenand_platform_data overo_onenand_data = {
+ .parts = overo_onenand_partitions,
+ .nr_parts = ARRAY_SIZE(overo_onenand_partitions),
+ .dma_channel = -1, /* disable DMA in OMAP OneNAND driver */
+};
+
+static struct platform_device overo_onenand_device = {
+ .name = "omap2-onenand",
+ .id = -1,
+ .dev = {
+ .platform_data = &overo_onenand_data,
+ },
+};
+
+void __init overo_flash_init(void)
+{
+ u8 cs = 0;
+ u8 onenandcs = GPMC_CS_NUM + 1;
+
+ while (cs < GPMC_CS_NUM) {
+ u32 ret = 0;
+ ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG7);
+
+ if ((ret & 0x3F) == (ONENAND_MAP >> 24))
+ onenandcs = cs;
+ cs++;
+ }
+ if (onenandcs > GPMC_CS_NUM) {
+ printk(KERN_ERR "OneNAND: Unable to find configuration "
+ " in GPMC\n ");
+ return;
+ }
+
+ if (onenandcs < GPMC_CS_NUM) {
+ overo_onenand_data.cs = onenandcs;
+ if (platform_device_register(&overo_onenand_device) < 0)
+ printk(KERN_ERR "Unable to register OneNAND device\n");
+ }
+}
+static struct omap_uart_config overo_uart_config __initdata = {
+ .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
+};
+
+static int __init overo_i2c_init(void)
+{
+ omap_register_i2c_bus(1, 2600, NULL, 0);
+ /* i2c2 pins are used for gpio */
+ omap_register_i2c_bus(3, 400, NULL, 0);
+ return 0;
+}
+
+static void __init overo_init_irq(void)
+{
+ omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
+ omap_init_irq();
+ omap_gpio_init();
+}
+
+static struct omap_mmc_config overo_mmc_config __initdata = {
+ .mmc[0] = {
+ .enabled = 1,
+ .wire4 = 1,
+ },
+ .mmc[1] = {
+ .enabled = 1,
+ .wire4 = 1,
+ },
+};
+
+static struct platform_device overo_twl4030rtc_device = {
+ .name = "twl4030_rtc",
+ .id = -1,
+};
+
+static struct platform_device overo_lcd_device = {
+ .name = "overo_lcd",
+ .id = -1,
+};
+
+static struct omap_lcd_config overo_lcd_config __initdata = {
+ .ctrl_name = "internal",
+};
+
+static struct omap_board_config_kernel overo_config[] __initdata = {
+ { OMAP_TAG_UART, &overo_uart_config },
+ { OMAP_TAG_MMC, &overo_mmc_config },
+ { OMAP_TAG_LCD, &overo_lcd_config },
+};
+
+static struct platform_device *overo_devices[] __initdata = {
+ &overo_lcd_device,
+#ifdef CONFIG_RTC_DRV_TWL4030
+ &overo_twl4030rtc_device,
+#endif
+};
+
+static void __init overo_init(void)
+{
+
+ platform_add_devices(overo_devices, ARRAY_SIZE(overo_devices));
+ omap_board_config = overo_config;
+ omap_board_config_size = ARRAY_SIZE(overo_config);
+ omap_serial_init();
+ hsmmc_init();
+ usb_musb_init();
+ usb_ehci_init();
+ overo_flash_init();
+
+ if ((gpio_request(W2W_NRESET, "W2W_NRESET") == 0) &&
+ (gpio_direction_output(W2W_NRESET, 1) == 0)) {
+ gpio_export(W2W_NRESET, 0);
+ gpio_direction_output(W2W_NRESET, 0);
+ udelay(10);
+ gpio_direction_output(W2W_NRESET, 1);
+ } else
+ printk(KERN_ERR "could not obtain gpio for W2W_NRESET\n");
+
+ if ((gpio_request(BT_NRESET, "BT_NRESET") == 0) &&
+ (gpio_direction_output(BT_NRESET, 1) == 0)) {
+ gpio_export(BT_NRESET, 0);
+ gpio_direction_output(BT_NRESET, 0);
+ mdelay(6);
+ gpio_direction_output(BT_NRESET, 1);
+ } else
+ printk(KERN_ERR "could not obtain gpio for BT_NRESET\n");
+
+ if ((gpio_request(USBH_CPEN, "USBH_CPEN") == 0) &&
+ (gpio_direction_output(USBH_CPEN, 1) == 0))
+ gpio_export(USBH_CPEN, 0);
+ else
+ printk(KERN_ERR "could not obtain gpio for USBH_CPEN\n");
+
+ if ((gpio_request(USBH_NRESET, "USBH_NRESET") == 0) &&
+ (gpio_direction_output(USBH_NRESET, 1) == 0))
+ gpio_export(USBH_NRESET, 0);
+ else
+ printk(KERN_ERR "could not obtain gpio for USBH_NRESET\n");
+}
+
+arch_initcall(overo_i2c_init);
+
+static void __init overo_map_io(void)
+{
+ omap2_set_globals_343x();
+ omap2_map_common_io();
+}
+
+MACHINE_START(OVERO, "Gumstix Overo")
+ .phys_io = 0x48000000,
+ .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
+ .boot_params = 0x80000100,
+ .map_io = overo_map_io,
+ .init_irq = overo_init_irq,
+ .init_machine = overo_init,
+ .timer = &omap_timer,
+MACHINE_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 0000000..0fc14e4
--- /dev/null
+++ b/arch/arm/plat-omap/include/mach/board-overo.h
@@ -0,0 +1,22 @@
+/*
+ * board-overo.h (Gumstix Overo)
+ *
+ * Initial code: Steve Sakoman <steve at sakoman.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __ASM_ARCH_OVERO_H
+#define __ASM_ARCH_OVERO_H
+
+#define ONENAND_MAP 0x20000000
+
+#endif /* ____ASM_ARCH_OVERO_H */
+
diff --git a/arch/arm/plat-omap/include/mach/hardware.h b/arch/arm/plat-omap/include/mach/hardware.h
index 438de80..f859c00 100644
--- a/arch/arm/plat-omap/include/mach/hardware.h
+++ b/arch/arm/plat-omap/include/mach/hardware.h
@@ -374,6 +374,10 @@
#include "board-sx1.h"
#endif
+#ifdef CONFIG_MACH_OVERO
+#include "board-overo.h"
+#endif
+
#endif /* !__ASSEMBLER__ */
#endif /* __ASM_ARCH_OMAP_HARDWARE_H */
diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig
index bdeb8fb..5ebd591 100644
--- a/drivers/video/omap/Kconfig
+++ b/drivers/video/omap/Kconfig
@@ -7,6 +7,27 @@ config FB_OMAP
help
Frame buffer driver for OMAP based boards.
+choice
+ depends on FB_OMAP && MACH_OVERO
+ prompt "Screen resolution"
+ default FB_OMAP_079M3R
+ help
+ Selected desired screen resolution
+
+config FB_OMAP_031M3R
+ boolean "640 x 480 @ 60 Hz Reduced blanking"
+
+config FB_OMAP_048M3R
+ boolean "800 x 600 @ 60 Hz Reduced blanking"
+
+config FB_OMAP_079M3R
+ boolean "1024 x 768 @ 60 Hz Reduced blanking"
+
+config FB_OMAP_092M9R
+ boolean "1280 x 720 @ 60 Hz Reduced blanking"
+
+endchoice
+
config FB_OMAP_LCDC_EXTERNAL
bool "External LCD controller support"
depends on FB_OMAP
diff --git a/drivers/video/omap/Makefile b/drivers/video/omap/Makefile
index f9b5cd4..291c46e 100644
--- a/drivers/video/omap/Makefile
+++ b/drivers/video/omap/Makefile
@@ -35,6 +35,7 @@ objs-y$(CONFIG_MACH_OMAP2EVM) += lcd_omap2evm.o
objs-y$(CONFIG_MACH_OMAP3EVM) += lcd_omap3evm.o
objs-y$(CONFIG_MACH_OMAP3_BEAGLE) += lcd_omap3beagle.o
objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o
+objs-y$(CONFIG_MACH_OVERO) += lcd_overo.o
omapfb-objs := $(objs-yy)
diff --git a/drivers/video/omap/lcd_overo.c b/drivers/video/omap/lcd_overo.c
new file mode 100644
index 0000000..831936d
--- /dev/null
+++ b/drivers/video/omap/lcd_overo.c
@@ -0,0 +1,189 @@
+/*
+ * LCD panel support for the Gumstix Overo
+ *
+ * Author: Steve Sakoman <steve at sakoman.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c/twl4030.h>
+
+#include <mach/gpio.h>
+#include <mach/mux.h>
+#include <mach/omapfb.h>
+#include <asm/mach-types.h>
+
+#define LCD_ENABLE 144
+
+static int overo_panel_init(struct lcd_panel *panel,
+ struct omapfb_device *fbdev)
+{
+ if ((gpio_request(LCD_ENABLE, "LCD_ENABLE") == 0) &&
+ (gpio_direction_output(LCD_ENABLE, 1) == 0))
+ gpio_export(LCD_ENABLE, 0);
+ else
+ printk(KERN_ERR "could not obtain gpio for LCD_ENABLE\n");
+
+ return 0;
+}
+
+static void overo_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int overo_panel_enable(struct lcd_panel *panel)
+{
+ gpio_direction_output(LCD_ENABLE, 1);
+ return 0;
+}
+
+static void overo_panel_disable(struct lcd_panel *panel)
+{
+ gpio_direction_output(LCD_ENABLE, 0);
+}
+
+static unsigned long overo_panel_get_caps(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+struct lcd_panel overo_panel = {
+ .name = "overo",
+ .config = OMAP_LCDC_PANEL_TFT,
+ .bpp = 16,
+ .data_lines = 24,
+
+#if defined CONFIG_FB_OMAP_031M3R
+
+ /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */
+ .x_res = 640,
+ .y_res = 480,
+ .hfp = 48,
+ .hsw = 32,
+ .hbp = 80,
+ .vfp = 3,
+ .vsw = 4,
+ .vbp = 7,
+ .pixel_clock = 23500,
+
+#elif defined CONFIG_FB_OMAP_048M3R
+
+ /* 800 x 600 @ 60 Hz Reduced blanking VESA CVT 0.48M3-R */
+ .x_res = 800,
+ .y_res = 600,
+ .hfp = 48,
+ .hsw = 32,
+ .hbp = 80,
+ .vfp = 3,
+ .vsw = 4,
+ .vbp = 11,
+ .pixel_clock = 35500,
+
+#elif defined CONFIG_FB_OMAP_079M3R
+
+ /* 1024 x 768 @ 60 Hz Reduced blanking VESA CVT 0.79M3-R */
+ .x_res = 1024,
+ .y_res = 768,
+ .hfp = 48,
+ .hsw = 32,
+ .hbp = 80,
+ .vfp = 3,
+ .vsw = 4,
+ .vbp = 15,
+ .pixel_clock = 56000,
+
+#elif defined CONFIG_FB_OMAP_092M9R
+
+ /* 1280 x 720 @ 60 Hz Reduced blanking VESA CVT 0.92M9-R */
+ .x_res = 1280,
+ .y_res = 720,
+ .hfp = 48,
+ .hsw = 32,
+ .hbp = 80,
+ .vfp = 3,
+ .vsw = 5,
+ .vbp = 13,
+ .pixel_clock = 64000,
+
+#else
+
+ /* use 640 x 480 if no config option */
+ /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */
+ .x_res = 640,
+ .y_res = 480,
+ .hfp = 48,
+ .hsw = 32,
+ .hbp = 80,
+ .vfp = 3,
+ .vsw = 4,
+ .vbp = 7,
+ .pixel_clock = 23500,
+
+#endif
+
+ .init = overo_panel_init,
+ .cleanup = overo_panel_cleanup,
+ .enable = overo_panel_enable,
+ .disable = overo_panel_disable,
+ .get_caps = overo_panel_get_caps,
+};
+
+static int overo_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&overo_panel);
+ return 0;
+}
+
+static int overo_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int overo_panel_suspend(struct platform_device *pdev,
+ pm_message_t mesg)
+{
+ return 0;
+}
+
+static int overo_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver overo_panel_driver = {
+ .probe = overo_panel_probe,
+ .remove = overo_panel_remove,
+ .suspend = overo_panel_suspend,
+ .resume = overo_panel_resume,
+ .driver = {
+ .name = "overo_lcd",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init overo_panel_drv_init(void)
+{
+ return platform_driver_register(&overo_panel_driver);
+}
+
+static void __exit overo_panel_drv_exit(void)
+{
+ platform_driver_unregister(&overo_panel_driver);
+}
+
+module_init(overo_panel_drv_init);
+module_exit(overo_panel_drv_exit);
--
1.5.4.5
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