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Diffstat (limited to 'arch/arm/mach-s3c/mach-hmt.c')
-rw-r--r--arch/arm/mach-s3c/mach-hmt.c282
1 files changed, 282 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c/mach-hmt.c b/arch/arm/mach-s3c/mach-hmt.c
new file mode 100644
index 000000000000..b287e9987311
--- /dev/null
+++ b/arch/arm/mach-s3c/mach-hmt.c
@@ -0,0 +1,282 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// mach-hmt.c - Platform code for Airgoo HMT
+//
+// Copyright 2009 Peter Korsgaard <jacmet@sunsite.dk>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/serial_core.h>
+#include <linux/serial_s3c.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/i2c.h>
+#include <linux/fb.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/leds.h>
+#include <linux/pwm.h>
+#include <linux/pwm_backlight.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <video/samsung_fimd.h>
+#include "map.h"
+#include <mach/irqs.h>
+
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+
+#include <linux/platform_data/i2c-s3c2410.h>
+#include "gpio-samsung.h"
+#include "fb.h"
+#include <linux/platform_data/mtd-nand-s3c2410.h>
+
+#include "devs.h"
+#include "cpu.h"
+
+#include "s3c64xx.h"
+
+#define UCON S3C2410_UCON_DEFAULT
+#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
+#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
+
+static struct s3c2410_uartcfg hmt_uartcfgs[] __initdata = {
+ [0] = {
+ .hwport = 0,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
+ },
+ [1] = {
+ .hwport = 1,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
+ },
+ [2] = {
+ .hwport = 2,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
+ },
+};
+
+static struct pwm_lookup hmt_pwm_lookup[] = {
+ PWM_LOOKUP("samsung-pwm", 1, "pwm-backlight.0", NULL,
+ 1000000000 / (100 * 256 * 20), PWM_POLARITY_NORMAL),
+};
+
+static int hmt_bl_init(struct device *dev)
+{
+ int ret;
+
+ ret = gpio_request(S3C64XX_GPB(4), "lcd backlight enable");
+ if (!ret)
+ ret = gpio_direction_output(S3C64XX_GPB(4), 0);
+
+ return ret;
+}
+
+static int hmt_bl_notify(struct device *dev, int brightness)
+{
+ /*
+ * translate from CIELUV/CIELAB L*->brightness, E.G. from
+ * perceived luminance to light output. Assumes range 0..25600
+ */
+ if (brightness < 0x800) {
+ /* Y = Yn * L / 903.3 */
+ brightness = (100*256 * brightness + 231245/2) / 231245;
+ } else {
+ /* Y = Yn * ((L + 16) / 116 )^3 */
+ int t = (brightness*4 + 16*1024 + 58)/116;
+ brightness = 25 * ((t * t * t + 0x100000/2) / 0x100000);
+ }
+
+ gpio_set_value(S3C64XX_GPB(4), brightness);
+
+ return brightness;
+}
+
+static void hmt_bl_exit(struct device *dev)
+{
+ gpio_free(S3C64XX_GPB(4));
+}
+
+static struct platform_pwm_backlight_data hmt_backlight_data = {
+ .max_brightness = 100 * 256,
+ .dft_brightness = 40 * 256,
+ .init = hmt_bl_init,
+ .notify = hmt_bl_notify,
+ .exit = hmt_bl_exit,
+
+};
+
+static struct platform_device hmt_backlight_device = {
+ .name = "pwm-backlight",
+ .dev = {
+ .parent = &samsung_device_pwm.dev,
+ .platform_data = &hmt_backlight_data,
+ },
+};
+
+static struct s3c_fb_pd_win hmt_fb_win0 = {
+ .max_bpp = 32,
+ .default_bpp = 16,
+ .xres = 800,
+ .yres = 480,
+};
+
+static struct fb_videomode hmt_lcd_timing = {
+ .left_margin = 8,
+ .right_margin = 13,
+ .upper_margin = 7,
+ .lower_margin = 5,
+ .hsync_len = 3,
+ .vsync_len = 1,
+ .xres = 800,
+ .yres = 480,
+};
+
+/* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
+static struct s3c_fb_platdata hmt_lcd_pdata __initdata = {
+ .setup_gpio = s3c64xx_fb_gpio_setup_24bpp,
+ .vtiming = &hmt_lcd_timing,
+ .win[0] = &hmt_fb_win0,
+ .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
+ .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
+};
+
+static struct mtd_partition hmt_nand_part[] = {
+ [0] = {
+ .name = "uboot",
+ .size = SZ_512K,
+ .offset = 0,
+ },
+ [1] = {
+ .name = "uboot-env1",
+ .size = SZ_256K,
+ .offset = SZ_512K,
+ },
+ [2] = {
+ .name = "uboot-env2",
+ .size = SZ_256K,
+ .offset = SZ_512K + SZ_256K,
+ },
+ [3] = {
+ .name = "kernel",
+ .size = SZ_2M,
+ .offset = SZ_1M,
+ },
+ [4] = {
+ .name = "rootfs",
+ .size = MTDPART_SIZ_FULL,
+ .offset = SZ_1M + SZ_2M,
+ },
+};
+
+static struct s3c2410_nand_set hmt_nand_sets[] = {
+ [0] = {
+ .name = "nand",
+ .nr_chips = 1,
+ .nr_partitions = ARRAY_SIZE(hmt_nand_part),
+ .partitions = hmt_nand_part,
+ },
+};
+
+static struct s3c2410_platform_nand hmt_nand_info = {
+ .tacls = 25,
+ .twrph0 = 55,
+ .twrph1 = 40,
+ .nr_sets = ARRAY_SIZE(hmt_nand_sets),
+ .sets = hmt_nand_sets,
+ .engine_type = NAND_ECC_ENGINE_TYPE_SOFT,
+};
+
+static struct gpio_led hmt_leds[] = {
+ { /* left function keys */
+ .name = "left:blue",
+ .gpio = S3C64XX_GPO(12),
+ .default_trigger = "default-on",
+ },
+ { /* right function keys - red */
+ .name = "right:red",
+ .gpio = S3C64XX_GPO(13),
+ },
+ { /* right function keys - green */
+ .name = "right:green",
+ .gpio = S3C64XX_GPO(14),
+ },
+ { /* right function keys - blue */
+ .name = "right:blue",
+ .gpio = S3C64XX_GPO(15),
+ .default_trigger = "default-on",
+ },
+};
+
+static struct gpio_led_platform_data hmt_led_data = {
+ .num_leds = ARRAY_SIZE(hmt_leds),
+ .leds = hmt_leds,
+};
+
+static struct platform_device hmt_leds_device = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev.platform_data = &hmt_led_data,
+};
+
+static struct map_desc hmt_iodesc[] = {};
+
+static struct platform_device *hmt_devices[] __initdata = {
+ &s3c_device_i2c0,
+ &s3c_device_nand,
+ &s3c_device_fb,
+ &s3c_device_ohci,
+ &samsung_device_pwm,
+ &hmt_backlight_device,
+ &hmt_leds_device,
+};
+
+static void __init hmt_map_io(void)
+{
+ s3c64xx_init_io(hmt_iodesc, ARRAY_SIZE(hmt_iodesc));
+ s3c64xx_set_xtal_freq(12000000);
+ s3c24xx_init_uarts(hmt_uartcfgs, ARRAY_SIZE(hmt_uartcfgs));
+ s3c64xx_set_timer_source(S3C64XX_PWM3, S3C64XX_PWM4);
+}
+
+static void __init hmt_machine_init(void)
+{
+ s3c_i2c0_set_platdata(NULL);
+ s3c_fb_set_platdata(&hmt_lcd_pdata);
+ s3c_nand_set_platdata(&hmt_nand_info);
+
+ gpio_request(S3C64XX_GPC(7), "usb power");
+ gpio_direction_output(S3C64XX_GPC(7), 0);
+ gpio_request(S3C64XX_GPM(0), "usb power");
+ gpio_direction_output(S3C64XX_GPM(0), 1);
+ gpio_request(S3C64XX_GPK(7), "usb power");
+ gpio_direction_output(S3C64XX_GPK(7), 1);
+ gpio_request(S3C64XX_GPF(13), "usb power");
+ gpio_direction_output(S3C64XX_GPF(13), 1);
+
+ pwm_add_table(hmt_pwm_lookup, ARRAY_SIZE(hmt_pwm_lookup));
+ platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices));
+}
+
+MACHINE_START(HMT, "Airgoo-HMT")
+ /* Maintainer: Peter Korsgaard <jacmet@sunsite.dk> */
+ .atag_offset = 0x100,
+ .nr_irqs = S3C64XX_NR_IRQS,
+ .init_irq = s3c6410_init_irq,
+ .map_io = hmt_map_io,
+ .init_machine = hmt_machine_init,
+ .init_time = s3c64xx_timer_init,
+MACHINE_END
generated by cgit (git 2.34.1) at 2024-05-04 23:47:56 +0000