diff options
Diffstat (limited to 'arch/arm/mach-pxa')
-rw-r--r-- | arch/arm/mach-pxa/Kconfig | 8 | ||||
-rw-r--r-- | arch/arm/mach-pxa/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/am300epd.c | 295 | ||||
-rw-r--r-- | arch/arm/mach-pxa/gumstix.c | 6 | ||||
-rw-r--r-- | arch/arm/mach-pxa/himalaya.c | 168 | ||||
-rw-r--r-- | arch/arm/mach-pxa/include/mach/gumstix.h | 1 |
6 files changed, 480 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index ffd28e4..04d1a07 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -40,6 +40,9 @@ choice config GUMSTIX_AM200EPD bool "Enable AM200EPD board support" +config GUMSTIX_AM300EPD + bool "Enable AM300EPD board support" + endchoice config MACH_INTELMOTE2 @@ -302,6 +305,11 @@ config MACH_MAGICIAN select HAVE_PWM select PXA_HAVE_BOARD_IRQS +config MACH_HIMALAYA + bool "HTC Himalaya Support" + select CPU_PXA26x + select FB_W100 + config MACH_MIOA701 bool "Mitac Mio A701 Support" select PXA27x diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index 146aba7..361fcfa 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -28,6 +28,7 @@ obj-$(CONFIG_CPU_PXA930) += pxa930.o # Specific board support obj-$(CONFIG_ARCH_GUMSTIX) += gumstix.o obj-$(CONFIG_GUMSTIX_AM200EPD) += am200epd.o +obj-$(CONFIG_GUMSTIX_AM300EPD) += am300epd.o obj-$(CONFIG_ARCH_LUBBOCK) += lubbock.o obj-$(CONFIG_MACH_LOGICPD_PXA270) += lpd270.o obj-$(CONFIG_MACH_MAINSTONE) += mainstone.o @@ -45,6 +46,7 @@ obj-$(CONFIG_MACH_PCM990_BASEBOARD) += pcm990-baseboard.o obj-$(CONFIG_MACH_TOSA) += tosa.o obj-$(CONFIG_MACH_EM_X270) += em-x270.o obj-$(CONFIG_MACH_MAGICIAN) += magician.o +obj-$(CONFIG_MACH_HIMALAYA) += himalaya.o obj-$(CONFIG_MACH_MIOA701) += mioa701.o mioa701_bootresume.o obj-$(CONFIG_ARCH_PXA_ESERIES) += eseries.o obj-$(CONFIG_MACH_E330) += e330.o diff --git a/arch/arm/mach-pxa/am300epd.c b/arch/arm/mach-pxa/am300epd.c new file mode 100644 index 0000000..4bd10a1 --- /dev/null +++ b/arch/arm/mach-pxa/am300epd.c @@ -0,0 +1,295 @@ +/* + * am300epd.c -- Platform device for AM300 EPD kit + * + * Copyright (C) 2008, Jaya Kumar + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive for + * more details. + * + * This work was made possible by help and equipment support from E-Ink + * Corporation. http://support.eink.com/community + * + * This driver is written to be used with the Broadsheet display controller. + * on the AM300 EPD prototype kit/development kit with an E-Ink 800x600 + * Vizplex EPD on a Gumstix board using the Broadsheet interface board. + * + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/fb.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/irq.h> +#include <linux/gpio.h> + +#include <mach/gumstix.h> +#include <mach/mfp-pxa25x.h> +#include <mach/pxafb.h> + +#include "generic.h" + +#include <video/broadsheetfb.h> + +static unsigned int panel_type = 6; +static struct platform_device *am300_device; +static struct broadsheet_board am300_board; + +static unsigned long am300_pin_config[] __initdata = { + GPIO16_GPIO, + GPIO17_GPIO, + GPIO32_GPIO, + GPIO48_GPIO, + GPIO49_GPIO, + GPIO51_GPIO, + GPIO74_GPIO, + GPIO75_GPIO, + GPIO76_GPIO, + GPIO77_GPIO, + + /* this is the 16-bit hdb bus 58-73 */ + GPIO58_GPIO, + GPIO59_GPIO, + GPIO60_GPIO, + GPIO61_GPIO, + + GPIO62_GPIO, + GPIO63_GPIO, + GPIO64_GPIO, + GPIO65_GPIO, + + GPIO66_GPIO, + GPIO67_GPIO, + GPIO68_GPIO, + GPIO69_GPIO, + + GPIO70_GPIO, + GPIO71_GPIO, + GPIO72_GPIO, + GPIO73_GPIO, +}; + +/* register offsets for gpio control */ +#define PWR_GPIO_PIN 16 +#define CFG_GPIO_PIN 17 +#define RDY_GPIO_PIN 32 +#define DC_GPIO_PIN 48 +#define RST_GPIO_PIN 49 +#define LED_GPIO_PIN 51 +#define RD_GPIO_PIN 74 +#define WR_GPIO_PIN 75 +#define CS_GPIO_PIN 76 +#define IRQ_GPIO_PIN 77 + +/* hdb bus */ +#define DB0_GPIO_PIN 58 +#define DB15_GPIO_PIN 73 + +static int gpios[] = { PWR_GPIO_PIN, CFG_GPIO_PIN, RDY_GPIO_PIN, DC_GPIO_PIN, + RST_GPIO_PIN, RD_GPIO_PIN, WR_GPIO_PIN, CS_GPIO_PIN, + IRQ_GPIO_PIN, LED_GPIO_PIN }; +static char *gpio_names[] = { "PWR", "CFG", "RDY", "DC", "RST", "RD", "WR", + "CS", "IRQ", "LED" }; + +static int am300_wait_event(struct broadsheetfb_par *par) +{ + /* todo: improve err recovery */ + wait_event(par->waitq, gpio_get_value(RDY_GPIO_PIN)); + return 0; +} + +static int am300_init_gpio_regs(struct broadsheetfb_par *par) +{ + int i; + int err; + char dbname[8]; + + for (i = 0; i < ARRAY_SIZE(gpios); i++) { + err = gpio_request(gpios[i], gpio_names[i]); + if (err) { + dev_err(&am300_device->dev, "failed requesting " + "gpio %s, err=%d\n", gpio_names[i], err); + goto err_req_gpio; + } + } + + /* we also need to take care of the hdb bus */ + for (i = DB0_GPIO_PIN; i <= DB15_GPIO_PIN; i++) { + sprintf(dbname, "DB%d", i); + err = gpio_request(i, dbname); + if (err) { + dev_err(&am300_device->dev, "failed requesting " + "gpio %d, err=%d\n", i, err); + while (i >= DB0_GPIO_PIN) + gpio_free(i--); + i = ARRAY_SIZE(gpios) - 1; + goto err_req_gpio; + } + } + + /* setup the outputs and init values */ + gpio_direction_output(PWR_GPIO_PIN, 0); + gpio_direction_output(CFG_GPIO_PIN, 1); + gpio_direction_output(DC_GPIO_PIN, 0); + gpio_direction_output(RD_GPIO_PIN, 1); + gpio_direction_output(WR_GPIO_PIN, 1); + gpio_direction_output(CS_GPIO_PIN, 1); + gpio_direction_output(RST_GPIO_PIN, 0); + + /* setup the inputs */ + gpio_direction_input(RDY_GPIO_PIN); + gpio_direction_input(IRQ_GPIO_PIN); + + /* start the hdb bus as an input */ + for (i = DB0_GPIO_PIN; i <= DB15_GPIO_PIN; i++) + gpio_direction_output(i, 0); + + /* go into command mode */ + gpio_set_value(CFG_GPIO_PIN, 1); + gpio_set_value(RST_GPIO_PIN, 0); + msleep(10); + gpio_set_value(RST_GPIO_PIN, 1); + msleep(10); + am300_wait_event(par); + + return 0; + +err_req_gpio: + while (i > 0) + gpio_free(gpios[i--]); + + return err; +} + +static int am300_init_board(struct broadsheetfb_par *par) +{ + return am300_init_gpio_regs(par); +} + +static void am300_cleanup(struct broadsheetfb_par *par) +{ + int i; + + free_irq(IRQ_GPIO(RDY_GPIO_PIN), par); + + for (i = 0; i < ARRAY_SIZE(gpios); i++) + gpio_free(gpios[i]); + + for (i = DB0_GPIO_PIN; i <= DB15_GPIO_PIN; i++) + gpio_free(i); + +} + +static u16 am300_get_hdb(struct broadsheetfb_par *par) +{ + u16 res = 0; + int i; + + for (i = 0; i <= (DB15_GPIO_PIN - DB0_GPIO_PIN) ; i++) + res |= (gpio_get_value(DB0_GPIO_PIN + i)) ? (1 << i) : 0; + + return res; +} + +static void am300_set_hdb(struct broadsheetfb_par *par, u16 data) +{ + int i; + + for (i = 0; i <= (DB15_GPIO_PIN - DB0_GPIO_PIN) ; i++) + gpio_set_value(DB0_GPIO_PIN + i, (data >> i) & 0x01); +} + + +static void am300_set_ctl(struct broadsheetfb_par *par, unsigned char bit, + u8 state) +{ + switch (bit) { + case BS_CS: + gpio_set_value(CS_GPIO_PIN, state); + break; + case BS_DC: + gpio_set_value(DC_GPIO_PIN, state); + break; + case BS_WR: + gpio_set_value(WR_GPIO_PIN, state); + break; + } +} + +static int am300_get_panel_type(void) +{ + return panel_type; +} + +static irqreturn_t am300_handle_irq(int irq, void *dev_id) +{ + struct broadsheetfb_par *par = dev_id; + + wake_up(&par->waitq); + return IRQ_HANDLED; +} + +static int am300_setup_irq(struct fb_info *info) +{ + int ret; + struct broadsheetfb_par *par = info->par; + + ret = request_irq(IRQ_GPIO(RDY_GPIO_PIN), am300_handle_irq, + IRQF_DISABLED|IRQF_TRIGGER_RISING, + "AM300", par); + if (ret) + dev_err(&am300_device->dev, "request_irq failed: %d\n", ret); + + return ret; +} + +static struct broadsheet_board am300_board = { + .owner = THIS_MODULE, + .init = am300_init_board, + .cleanup = am300_cleanup, + .set_hdb = am300_set_hdb, + .get_hdb = am300_get_hdb, + .set_ctl = am300_set_ctl, + .wait_for_rdy = am300_wait_event, + .get_panel_type = am300_get_panel_type, + .setup_irq = am300_setup_irq, +}; + +int __init am300_init(void) +{ + int ret; + + pxa2xx_mfp_config(ARRAY_AND_SIZE(am300_pin_config)); + + /* request our platform independent driver */ + request_module("broadsheetfb"); + + am300_device = platform_device_alloc("broadsheetfb", -1); + if (!am300_device) + return -ENOMEM; + + /* the am300_board that will be seen by broadsheetfb is a copy */ + platform_device_add_data(am300_device, &am300_board, + sizeof(am300_board)); + + ret = platform_device_add(am300_device); + + if (ret) { + platform_device_put(am300_device); + return ret; + } + + return 0; +} + +module_param(panel_type, uint, 0); +MODULE_PARM_DESC(panel_type, "Select the panel type: 6, 8, 97"); + +MODULE_DESCRIPTION("board driver for am300 epd kit"); +MODULE_AUTHOR("Jaya Kumar"); +MODULE_LICENSE("GPL"); diff --git a/arch/arm/mach-pxa/gumstix.c b/arch/arm/mach-pxa/gumstix.c index e296ce1..9cb4a07 100644 --- a/arch/arm/mach-pxa/gumstix.c +++ b/arch/arm/mach-pxa/gumstix.c @@ -191,6 +191,11 @@ int __attribute__((weak)) am200_init(void) return 0; } +int __attribute__((weak)) am300_init(void) +{ + return 0; +} + static void __init carrier_board_init(void) { /* @@ -198,6 +203,7 @@ static void __init carrier_board_init(void) * they cannot be detected programatically */ am200_init(); + am300_init(); } static void __init gumstix_init(void) diff --git a/arch/arm/mach-pxa/himalaya.c b/arch/arm/mach-pxa/himalaya.c new file mode 100644 index 0000000..00884e5 --- /dev/null +++ b/arch/arm/mach-pxa/himalaya.c @@ -0,0 +1,168 @@ +/* + * linux/arch/arm/mach-pxa/himalaya.c + * + * Hardware definitions for the HTC Himalaya + * + * Based on 2.6.21-hh20's himalaya.c and himalaya_lcd.c + * + * Copyright (c) 2008 Zbynek Michl <Zbynek.Michl@seznam.cz> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/fb.h> +#include <linux/platform_device.h> + +#include <video/w100fb.h> + +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> + +#include <mach/mfp-pxa25x.h> +#include <mach/hardware.h> +#include <mach/pxa-regs.h> +#include <mach/pxa2xx-regs.h> + +#include "generic.h" + +/* ---------------------- Himalaya LCD definitions -------------------- */ + +static struct w100_gen_regs himalaya_lcd_regs = { + .lcd_format = 0x00000003, + .lcdd_cntl1 = 0x00000000, + .lcdd_cntl2 = 0x0003ffff, + .genlcd_cntl1 = 0x00fff003, + .genlcd_cntl2 = 0x00000003, + .genlcd_cntl3 = 0x000102aa, +}; + +static struct w100_mode himalaya4_lcd_mode = { + .xres = 240, + .yres = 320, + .left_margin = 0, + .right_margin = 31, + .upper_margin = 15, + .lower_margin = 0, + .crtc_ss = 0x80150014, + .crtc_ls = 0xa0fb00f7, + .crtc_gs = 0xc0080007, + .crtc_vpos_gs = 0x00080007, + .crtc_rev = 0x0000000a, + .crtc_dclk = 0x81700030, + .crtc_gclk = 0x8015010f, + .crtc_goe = 0x00000000, + .pll_freq = 80, + .pixclk_divider = 15, + .pixclk_divider_rotated = 15, + .pixclk_src = CLK_SRC_PLL, + .sysclk_divider = 0, + .sysclk_src = CLK_SRC_PLL, +}; + +static struct w100_mode himalaya6_lcd_mode = { + .xres = 240, + .yres = 320, + .left_margin = 9, + .right_margin = 8, + .upper_margin = 5, + .lower_margin = 4, + .crtc_ss = 0x80150014, + .crtc_ls = 0xa0fb00f7, + .crtc_gs = 0xc0080007, + .crtc_vpos_gs = 0x00080007, + .crtc_rev = 0x0000000a, + .crtc_dclk = 0xa1700030, + .crtc_gclk = 0x8015010f, + .crtc_goe = 0x00000000, + .pll_freq = 95, + .pixclk_divider = 0xb, + .pixclk_divider_rotated = 4, + .pixclk_src = CLK_SRC_PLL, + .sysclk_divider = 1, + .sysclk_src = CLK_SRC_PLL, +}; + +static struct w100_gpio_regs himalaya_w100_gpio_info = { + .init_data1 = 0xffff0000, /* GPIO_DATA */ + .gpio_dir1 = 0x00000000, /* GPIO_CNTL1 */ + .gpio_oe1 = 0x003c0000, /* GPIO_CNTL2 */ + .init_data2 = 0x00000000, /* GPIO_DATA2 */ + .gpio_dir2 = 0x00000000, /* GPIO_CNTL3 */ + .gpio_oe2 = 0x00000000, /* GPIO_CNTL4 */ +}; + +static struct w100fb_mach_info himalaya_fb_info = { + .num_modes = 1, + .regs = &himalaya_lcd_regs, + .gpio = &himalaya_w100_gpio_info, + .xtal_freq = 16000000, +}; + +static struct resource himalaya_fb_resources[] = { + [0] = { + .start = 0x08000000, + .end = 0x08ffffff, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device himalaya_fb_device = { + .name = "w100fb", + .id = -1, + .dev = { + .platform_data = &himalaya_fb_info, + }, + .num_resources = ARRAY_SIZE(himalaya_fb_resources), + .resource = himalaya_fb_resources, +}; + +/* ----------------------------------------------------------------------- */ + +static struct platform_device *devices[] __initdata = { + &himalaya_fb_device, +}; + +static void __init himalaya_lcd_init(void) +{ + int himalaya_boardid; + + himalaya_boardid = 0x4; /* hardcoded (detection needs ASIC3 functions) */ + printk(KERN_INFO "himalaya LCD Driver init. boardid=%d\n", + himalaya_boardid); + + switch (himalaya_boardid) { + case 0x4: + himalaya_fb_info.modelist = &himalaya4_lcd_mode; + break; + case 0x6: + himalaya_fb_info.modelist = &himalaya6_lcd_mode; + break; + default: + printk(KERN_INFO "himalaya lcd_init: unknown boardid=%d. Using 0x4\n", + himalaya_boardid); + himalaya_fb_info.modelist = &himalaya4_lcd_mode; + } +} + +static void __init himalaya_init(void) +{ + himalaya_lcd_init(); + platform_add_devices(devices, ARRAY_SIZE(devices)); +} + + +MACHINE_START(HIMALAYA, "HTC Himalaya") + .phys_io = 0x40000000, + .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, + .boot_params = 0xa0000100, + .map_io = pxa_map_io, + .init_irq = pxa25x_init_irq, + .init_machine = himalaya_init, + .timer = &pxa_timer, +MACHINE_END diff --git a/arch/arm/mach-pxa/include/mach/gumstix.h b/arch/arm/mach-pxa/include/mach/gumstix.h index 099f54a..06abd41 100644 --- a/arch/arm/mach-pxa/include/mach/gumstix.h +++ b/arch/arm/mach-pxa/include/mach/gumstix.h @@ -97,4 +97,5 @@ has detected a cable insertion; driven low otherwise. */ /* for expansion boards that can't be programatically detected */ extern int am200_init(void); +extern int am300_init(void); |