diff options
Diffstat (limited to 'kernel/arch/arm/mach-pxa/saar.c')
| -rw-r--r-- | kernel/arch/arm/mach-pxa/saar.c | 607 |
1 files changed, 607 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-pxa/saar.c b/kernel/arch/arm/mach-pxa/saar.c new file mode 100644 index 000000000..710c493ea --- /dev/null +++ b/kernel/arch/arm/mach-pxa/saar.c @@ -0,0 +1,607 @@ +/* + * linux/arch/arm/mach-pxa/saar.c + * + * Support for the Marvell PXA930 Handheld Platform (aka SAAR) + * + * Copyright (C) 2007-2008 Marvell International Ltd. + * + * 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 + * publishhed by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/gpio.h> +#include <linux/delay.h> +#include <linux/fb.h> +#include <linux/i2c.h> +#include <linux/i2c/pxa-i2c.h> +#include <linux/smc91x.h> +#include <linux/mfd/da903x.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/onenand.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> + +#include <mach/pxa930.h> +#include <linux/platform_data/video-pxafb.h> + +#include "devices.h" +#include "generic.h" + +#define GPIO_LCD_RESET (16) + +/* SAAR MFP configurations */ +static mfp_cfg_t saar_mfp_cfg[] __initdata = { + /* LCD */ + GPIO23_LCD_DD0, + GPIO24_LCD_DD1, + GPIO25_LCD_DD2, + GPIO26_LCD_DD3, + GPIO27_LCD_DD4, + GPIO28_LCD_DD5, + GPIO29_LCD_DD6, + GPIO44_LCD_DD7, + GPIO21_LCD_CS, + GPIO22_LCD_VSYNC, + GPIO17_LCD_FCLK_RD, + GPIO18_LCD_LCLK_A0, + GPIO19_LCD_PCLK_WR, + GPIO16_GPIO, /* LCD reset */ + + /* Ethernet */ + DF_nCS1_nCS3, + GPIO97_GPIO, + + /* DFI */ + DF_INT_RnB_ND_INT_RnB, + DF_nRE_nOE_ND_nRE, + DF_nWE_ND_nWE, + DF_CLE_nOE_ND_CLE, + DF_nADV1_ALE_ND_ALE, + DF_nADV2_ALE_nCS3, + DF_nCS0_ND_nCS0, + DF_IO0_ND_IO0, + DF_IO1_ND_IO1, + DF_IO2_ND_IO2, + DF_IO3_ND_IO3, + DF_IO4_ND_IO4, + DF_IO5_ND_IO5, + DF_IO6_ND_IO6, + DF_IO7_ND_IO7, + DF_IO8_ND_IO8, + DF_IO9_ND_IO9, + DF_IO10_ND_IO10, + DF_IO11_ND_IO11, + DF_IO12_ND_IO12, + DF_IO13_ND_IO13, + DF_IO14_ND_IO14, + DF_IO15_ND_IO15, +}; + +#define SAAR_ETH_PHYS (0x14000000) + +static struct resource smc91x_resources[] = { + [0] = { + .start = (SAAR_ETH_PHYS + 0x300), + .end = (SAAR_ETH_PHYS + 0xfffff), + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO97)), + .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO97)), + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, + } +}; + +static struct smc91x_platdata saar_smc91x_info = { + .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_USE_DMA, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, + .dev = { + .platform_data = &saar_smc91x_info, + }, +}; + +#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) +static uint16_t lcd_power_on[] = { + /* single frame */ + SMART_CMD_NOOP, + SMART_CMD(0x00), + SMART_DELAY(0), + + SMART_CMD_NOOP, + SMART_CMD(0x00), + SMART_DELAY(0), + + SMART_CMD_NOOP, + SMART_CMD(0x00), + SMART_DELAY(0), + + SMART_CMD_NOOP, + SMART_CMD(0x00), + SMART_DELAY(10), + + /* calibration control */ + SMART_CMD(0x00), + SMART_CMD(0xA4), + SMART_DAT(0x80), + SMART_DAT(0x01), + SMART_DELAY(150), + + /*Power-On Init sequence*/ + SMART_CMD(0x00), /* output ctrl */ + SMART_CMD(0x01), + SMART_DAT(0x01), + SMART_DAT(0x00), + SMART_CMD(0x00), /* wave ctrl */ + SMART_CMD(0x02), + SMART_DAT(0x07), + SMART_DAT(0x00), + SMART_CMD(0x00), + SMART_CMD(0x03), /* entry mode */ + SMART_DAT(0xD0), + SMART_DAT(0x30), + SMART_CMD(0x00), + SMART_CMD(0x08), /* display ctrl 2 */ + SMART_DAT(0x08), + SMART_DAT(0x08), + SMART_CMD(0x00), + SMART_CMD(0x09), /* display ctrl 3 */ + SMART_DAT(0x04), + SMART_DAT(0x2F), + SMART_CMD(0x00), + SMART_CMD(0x0A), /* display ctrl 4 */ + SMART_DAT(0x00), + SMART_DAT(0x08), + SMART_CMD(0x00), + SMART_CMD(0x0D), /* Frame Marker position */ + SMART_DAT(0x00), + SMART_DAT(0x08), + SMART_CMD(0x00), + SMART_CMD(0x60), /* Driver output control */ + SMART_DAT(0x27), + SMART_DAT(0x00), + SMART_CMD(0x00), + SMART_CMD(0x61), /* Base image display control */ + SMART_DAT(0x00), + SMART_DAT(0x01), + SMART_CMD(0x00), + SMART_CMD(0x30), /* Y settings 30h-3Dh */ + SMART_DAT(0x07), + SMART_DAT(0x07), + SMART_CMD(0x00), + SMART_CMD(0x31), + SMART_DAT(0x00), + SMART_DAT(0x07), + SMART_CMD(0x00), + SMART_CMD(0x32), /* Timing(3), ASW HOLD=0.5CLK */ + SMART_DAT(0x04), + SMART_DAT(0x00), + SMART_CMD(0x00), + SMART_CMD(0x33), /* Timing(4), CKV ST=0CLK, CKV ED=1CLK */ + SMART_DAT(0x03), + SMART_DAT(0x03), + SMART_CMD(0x00), + SMART_CMD(0x34), + SMART_DAT(0x00), + SMART_DAT(0x00), + SMART_CMD(0x00), + SMART_CMD(0x35), + SMART_DAT(0x02), + SMART_DAT(0x05), + SMART_CMD(0x00), + SMART_CMD(0x36), + SMART_DAT(0x1F), + SMART_DAT(0x1F), + SMART_CMD(0x00), + SMART_CMD(0x37), + SMART_DAT(0x07), + SMART_DAT(0x07), + SMART_CMD(0x00), + SMART_CMD(0x38), + SMART_DAT(0x00), + SMART_DAT(0x07), + SMART_CMD(0x00), + SMART_CMD(0x39), + SMART_DAT(0x04), + SMART_DAT(0x00), + SMART_CMD(0x00), + SMART_CMD(0x3A), + SMART_DAT(0x03), + SMART_DAT(0x03), + SMART_CMD(0x00), + SMART_CMD(0x3B), + SMART_DAT(0x00), + SMART_DAT(0x00), + SMART_CMD(0x00), + SMART_CMD(0x3C), + SMART_DAT(0x02), + SMART_DAT(0x05), + SMART_CMD(0x00), + SMART_CMD(0x3D), + SMART_DAT(0x1F), + SMART_DAT(0x1F), + SMART_CMD(0x00), /* Display control 1 */ + SMART_CMD(0x07), + SMART_DAT(0x00), + SMART_DAT(0x01), + SMART_CMD(0x00), /* Power control 5 */ + SMART_CMD(0x17), + SMART_DAT(0x00), + SMART_DAT(0x01), + SMART_CMD(0x00), /* Power control 1 */ + SMART_CMD(0x10), + SMART_DAT(0x10), + SMART_DAT(0xB0), + SMART_CMD(0x00), /* Power control 2 */ + SMART_CMD(0x11), + SMART_DAT(0x01), + SMART_DAT(0x30), + SMART_CMD(0x00), /* Power control 3 */ + SMART_CMD(0x12), + SMART_DAT(0x01), + SMART_DAT(0x9E), + SMART_CMD(0x00), /* Power control 4 */ + SMART_CMD(0x13), + SMART_DAT(0x17), + SMART_DAT(0x00), + SMART_CMD(0x00), /* Power control 3 */ + SMART_CMD(0x12), + SMART_DAT(0x01), + SMART_DAT(0xBE), + SMART_DELAY(100), + + /* display mode : 240*320 */ + SMART_CMD(0x00), /* RAM address set(H) 0*/ + SMART_CMD(0x20), + SMART_DAT(0x00), + SMART_DAT(0x00), + SMART_CMD(0x00), /* RAM address set(V) 4*/ + SMART_CMD(0x21), + SMART_DAT(0x00), + SMART_DAT(0x00), + SMART_CMD(0x00), /* Start of Window RAM address set(H) 8*/ + SMART_CMD(0x50), + SMART_DAT(0x00), + SMART_DAT(0x00), + SMART_CMD(0x00), /* End of Window RAM address set(H) 12*/ + SMART_CMD(0x51), + SMART_DAT(0x00), + SMART_DAT(0xEF), + SMART_CMD(0x00), /* Start of Window RAM address set(V) 16*/ + SMART_CMD(0x52), + SMART_DAT(0x00), + SMART_DAT(0x00), + SMART_CMD(0x00), /* End of Window RAM address set(V) 20*/ + SMART_CMD(0x53), + SMART_DAT(0x01), + SMART_DAT(0x3F), + SMART_CMD(0x00), /* Panel interface control 1 */ + SMART_CMD(0x90), + SMART_DAT(0x00), + SMART_DAT(0x1A), + SMART_CMD(0x00), /* Panel interface control 2 */ + SMART_CMD(0x92), + SMART_DAT(0x04), + SMART_DAT(0x00), + SMART_CMD(0x00), /* Panel interface control 3 */ + SMART_CMD(0x93), + SMART_DAT(0x00), + SMART_DAT(0x05), + SMART_DELAY(20), +}; + +static uint16_t lcd_panel_on[] = { + SMART_CMD(0x00), + SMART_CMD(0x07), + SMART_DAT(0x00), + SMART_DAT(0x21), + SMART_DELAY(1), + + SMART_CMD(0x00), + SMART_CMD(0x07), + SMART_DAT(0x00), + SMART_DAT(0x61), + SMART_DELAY(100), + + SMART_CMD(0x00), + SMART_CMD(0x07), + SMART_DAT(0x01), + SMART_DAT(0x73), + SMART_DELAY(1), +}; + +static uint16_t lcd_panel_off[] = { + SMART_CMD(0x00), + SMART_CMD(0x07), + SMART_DAT(0x00), + SMART_DAT(0x72), + SMART_DELAY(40), + + SMART_CMD(0x00), + SMART_CMD(0x07), + SMART_DAT(0x00), + SMART_DAT(0x01), + SMART_DELAY(1), + + SMART_CMD(0x00), + SMART_CMD(0x07), + SMART_DAT(0x00), + SMART_DAT(0x00), + SMART_DELAY(1), +}; + +static uint16_t lcd_power_off[] = { + SMART_CMD(0x00), + SMART_CMD(0x10), + SMART_DAT(0x00), + SMART_DAT(0x80), + + SMART_CMD(0x00), + SMART_CMD(0x11), + SMART_DAT(0x01), + SMART_DAT(0x60), + + SMART_CMD(0x00), + SMART_CMD(0x12), + SMART_DAT(0x01), + SMART_DAT(0xAE), + SMART_DELAY(40), + + SMART_CMD(0x00), + SMART_CMD(0x10), + SMART_DAT(0x00), + SMART_DAT(0x00), +}; + +static uint16_t update_framedata[] = { + /* set display ram: 240*320 */ + SMART_CMD(0x00), /* RAM address set(H) 0*/ + SMART_CMD(0x20), + SMART_DAT(0x00), + SMART_DAT(0x00), + SMART_CMD(0x00), /* RAM address set(V) 4*/ + SMART_CMD(0x21), + SMART_DAT(0x00), + SMART_DAT(0x00), + SMART_CMD(0x00), /* Start of Window RAM address set(H) 8 */ + SMART_CMD(0x50), + SMART_DAT(0x00), + SMART_DAT(0x00), + SMART_CMD(0x00), /* End of Window RAM address set(H) 12 */ + SMART_CMD(0x51), + SMART_DAT(0x00), + SMART_DAT(0xEF), + SMART_CMD(0x00), /* Start of Window RAM address set(V) 16 */ + SMART_CMD(0x52), + SMART_DAT(0x00), + SMART_DAT(0x00), + SMART_CMD(0x00), /* End of Window RAM address set(V) 20 */ + SMART_CMD(0x53), + SMART_DAT(0x01), + SMART_DAT(0x3F), + + /* wait for vsync cmd before transferring frame data */ + SMART_CMD_WAIT_FOR_VSYNC, + + /* write ram */ + SMART_CMD(0x00), + SMART_CMD(0x22), + + /* write frame data */ + SMART_CMD_WRITE_FRAME, +}; + +static void ltm022a97a_lcd_power(int on, struct fb_var_screeninfo *var) +{ + static int pin_requested = 0; + struct fb_info *info = container_of(var, struct fb_info, var); + int err; + + if (!pin_requested) { + err = gpio_request(GPIO_LCD_RESET, "lcd reset"); + if (err) { + pr_err("failed to request gpio for LCD reset\n"); + return; + } + + gpio_direction_output(GPIO_LCD_RESET, 0); + pin_requested = 1; + } + + if (on) { + gpio_set_value(GPIO_LCD_RESET, 0); msleep(100); + gpio_set_value(GPIO_LCD_RESET, 1); msleep(10); + + pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_power_on)); + pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_panel_on)); + } else { + pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_panel_off)); + pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_power_off)); + } + + err = pxafb_smart_flush(info); + if (err) + pr_err("%s: timed out\n", __func__); +} + +static void ltm022a97a_update(struct fb_info *info) +{ + pxafb_smart_queue(info, ARRAY_AND_SIZE(update_framedata)); + pxafb_smart_flush(info); +} + +static struct pxafb_mode_info toshiba_ltm022a97a_modes[] = { + [0] = { + .xres = 240, + .yres = 320, + .bpp = 16, + .a0csrd_set_hld = 30, + .a0cswr_set_hld = 30, + .wr_pulse_width = 30, + .rd_pulse_width = 30, + .op_hold_time = 30, + .cmd_inh_time = 60, + + /* L_LCLK_A0 and L_LCLK_RD active low */ + .sync = FB_SYNC_HOR_HIGH_ACT | + FB_SYNC_VERT_HIGH_ACT, + }, +}; + +static struct pxafb_mach_info saar_lcd_info = { + .modes = toshiba_ltm022a97a_modes, + .num_modes = 1, + .lcd_conn = LCD_SMART_PANEL_8BPP | LCD_PCLK_EDGE_FALL, + .pxafb_lcd_power = ltm022a97a_lcd_power, + .smart_update = ltm022a97a_update, +}; + +static void __init saar_init_lcd(void) +{ + pxa_set_fb_info(NULL, &saar_lcd_info); +} +#else +static inline void saar_init_lcd(void) {} +#endif + +#if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE) +static struct da9034_backlight_pdata saar_da9034_backlight = { + .output_current = 4, /* 4mA */ +}; + +static struct da903x_subdev_info saar_da9034_subdevs[] = { + [0] = { + .name = "da903x-backlight", + .id = DA9034_ID_WLED, + .platform_data = &saar_da9034_backlight, + }, +}; + +static struct da903x_platform_data saar_da9034_info = { + .num_subdevs = ARRAY_SIZE(saar_da9034_subdevs), + .subdevs = saar_da9034_subdevs, +}; + +static struct i2c_board_info saar_i2c_info[] = { + [0] = { + .type = "da9034", + .addr = 0x34, + .platform_data = &saar_da9034_info, + .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO83)), + }, +}; + +static void __init saar_init_i2c(void) +{ + pxa_set_i2c_info(NULL); + i2c_register_board_info(0, ARRAY_AND_SIZE(saar_i2c_info)); +} +#else +static inline void saar_init_i2c(void) {} +#endif + +#if defined(CONFIG_MTD_ONENAND) || defined(CONFIG_MTD_ONENAND_MODULE) +static struct mtd_partition saar_onenand_partitions[] = { + { + .name = "bootloader", + .offset = 0, + .size = SZ_1M, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "reserved", + .offset = MTDPART_OFS_APPEND, + .size = SZ_128K, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "reserved", + .offset = MTDPART_OFS_APPEND, + .size = SZ_8M, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = (SZ_2M + SZ_1M), + .mask_flags = 0, + }, { + .name = "filesystem", + .offset = MTDPART_OFS_APPEND, + .size = SZ_32M + SZ_16M, + .mask_flags = 0, + } +}; + +static struct onenand_platform_data saar_onenand_info = { + .parts = saar_onenand_partitions, + .nr_parts = ARRAY_SIZE(saar_onenand_partitions), +}; + +#define SMC_CS0_PHYS_BASE (0x10000000) + +static struct resource saar_resource_onenand[] = { + [0] = { + .start = SMC_CS0_PHYS_BASE, + .end = SMC_CS0_PHYS_BASE + SZ_1M, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device saar_device_onenand = { + .name = "onenand-flash", + .id = -1, + .dev = { + .platform_data = &saar_onenand_info, + }, + .resource = saar_resource_onenand, + .num_resources = ARRAY_SIZE(saar_resource_onenand), +}; + +static void __init saar_init_onenand(void) +{ + platform_device_register(&saar_device_onenand); +} +#else +static void __init saar_init_onenand(void) {} +#endif + +static void __init saar_init(void) +{ + /* initialize MFP configurations */ + pxa3xx_mfp_config(ARRAY_AND_SIZE(saar_mfp_cfg)); + + pxa_set_ffuart_info(NULL); + pxa_set_btuart_info(NULL); + pxa_set_stuart_info(NULL); + + platform_device_register(&smc91x_device); + saar_init_onenand(); + + saar_init_i2c(); + saar_init_lcd(); +} + +MACHINE_START(SAAR, "PXA930 Handheld Platform (aka SAAR)") + /* Maintainer: Eric Miao <eric.miao@marvell.com> */ + .atag_offset = 0x100, + .map_io = pxa3xx_map_io, + .nr_irqs = PXA_NR_IRQS, + .init_irq = pxa3xx_init_irq, + .handle_irq = pxa3xx_handle_irq, + .init_time = pxa_timer_init, + .init_machine = saar_init, + .restart = pxa_restart, +MACHINE_END |