/* * linux/arch/arm/mach-pxa/littleton.c * * Support for the Marvell Littleton Development Platform. * * Author: Jason Chagas (largely modified code) * Created: Nov 20, 2006 * Copyright: (C) Copyright 2006 Marvell International Ltd. * * 2007-11-22 modified to align with latest kernel * eric miao * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "generic.h" #define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x) /* Littleton MFP configurations */ static mfp_cfg_t littleton_mfp_cfg[] __initdata = { /* LCD */ GPIO54_LCD_LDD_0, GPIO55_LCD_LDD_1, GPIO56_LCD_LDD_2, GPIO57_LCD_LDD_3, GPIO58_LCD_LDD_4, GPIO59_LCD_LDD_5, GPIO60_LCD_LDD_6, GPIO61_LCD_LDD_7, GPIO62_LCD_LDD_8, GPIO63_LCD_LDD_9, GPIO64_LCD_LDD_10, GPIO65_LCD_LDD_11, GPIO66_LCD_LDD_12, GPIO67_LCD_LDD_13, GPIO68_LCD_LDD_14, GPIO69_LCD_LDD_15, GPIO70_LCD_LDD_16, GPIO71_LCD_LDD_17, GPIO72_LCD_FCLK, GPIO73_LCD_LCLK, GPIO74_LCD_PCLK, GPIO75_LCD_BIAS, /* SSP2 */ GPIO25_SSP2_SCLK, GPIO17_SSP2_FRM, GPIO27_SSP2_TXD, /* Debug Ethernet */ GPIO90_GPIO, }; static struct resource smc91x_resources[] = { [0] = { .start = (LITTLETON_ETH_PHYS + 0x300), .end = (LITTLETON_ETH_PHYS + 0xfffff), .flags = IORESOURCE_MEM, }, [1] = { .start = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)), .end = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)), .flags = IORESOURCE_IRQ, } }; static struct platform_device smc91x_device = { .name = "smc91x", .id = 0, .num_resources = ARRAY_SIZE(smc91x_resources), .resource = smc91x_resources, }; #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULES) /* use bit 30, 31 as the indicator of command parameter number */ #define CMD0(x) ((0x00000000) | ((x) << 9)) #define CMD1(x, x1) ((0x40000000) | ((x) << 9) | 0x100 | (x1)) #define CMD2(x, x1, x2) ((0x80000000) | ((x) << 18) | 0x20000 |\ ((x1) << 9) | 0x100 | (x2)) static uint32_t lcd_panel_reset[] = { CMD0(0x1), /* reset */ CMD0(0x0), /* nop */ CMD0(0x0), /* nop */ CMD0(0x0), /* nop */ }; static uint32_t lcd_panel_on[] = { CMD0(0x29), /* Display ON */ CMD2(0xB8, 0xFF, 0xF9), /* Output Control */ CMD0(0x11), /* Sleep out */ CMD1(0xB0, 0x16), /* Wake */ }; static uint32_t lcd_panel_off[] = { CMD0(0x28), /* Display OFF */ CMD2(0xB8, 0x80, 0x02), /* Output Control */ CMD0(0x10), /* Sleep in */ CMD1(0xB0, 0x00), /* Deep stand by in */ }; static uint32_t lcd_vga_pass_through[] = { CMD1(0xB0, 0x16), CMD1(0xBC, 0x80), CMD1(0xE1, 0x00), CMD1(0x36, 0x50), CMD1(0x3B, 0x00), }; static uint32_t lcd_qvga_pass_through[] = { CMD1(0xB0, 0x16), CMD1(0xBC, 0x81), CMD1(0xE1, 0x00), CMD1(0x36, 0x50), CMD1(0x3B, 0x22), }; static uint32_t lcd_vga_transfer[] = { CMD1(0xcf, 0x02), /* Blanking period control (1) */ CMD2(0xd0, 0x08, 0x04), /* Blanking period control (2) */ CMD1(0xd1, 0x01), /* CKV timing control on/off */ CMD2(0xd2, 0x14, 0x00), /* CKV 1,2 timing control */ CMD2(0xd3, 0x1a, 0x0f), /* OEV timing control */ CMD2(0xd4, 0x1f, 0xaf), /* ASW timing control (1) */ CMD1(0xd5, 0x14), /* ASW timing control (2) */ CMD0(0x21), /* Invert for normally black display */ CMD0(0x29), /* Display on */ }; static uint32_t lcd_qvga_transfer[] = { CMD1(0xd6, 0x02), /* Blanking period control (1) */ CMD2(0xd7, 0x08, 0x04), /* Blanking period control (2) */ CMD1(0xd8, 0x01), /* CKV timing control on/off */ CMD2(0xd9, 0x00, 0x08), /* CKV 1,2 timing control */ CMD2(0xde, 0x05, 0x0a), /* OEV timing control */ CMD2(0xdf, 0x0a, 0x19), /* ASW timing control (1) */ CMD1(0xe0, 0x0a), /* ASW timing control (2) */ CMD0(0x21), /* Invert for normally black display */ CMD0(0x29), /* Display on */ }; static uint32_t lcd_panel_config[] = { CMD2(0xb8, 0xff, 0xf9), /* Output control */ CMD0(0x11), /* sleep out */ CMD1(0xba, 0x01), /* Display mode (1) */ CMD1(0xbb, 0x00), /* Display mode (2) */ CMD1(0x3a, 0x60), /* Display mode 18-bit RGB */ CMD1(0xbf, 0x10), /* Drive system change control */ CMD1(0xb1, 0x56), /* Booster operation setup */ CMD1(0xb2, 0x33), /* Booster mode setup */ CMD1(0xb3, 0x11), /* Booster frequency setup */ CMD1(0xb4, 0x02), /* Op amp/system clock */ CMD1(0xb5, 0x35), /* VCS voltage */ CMD1(0xb6, 0x40), /* VCOM voltage */ CMD1(0xb7, 0x03), /* External display signal */ CMD1(0xbd, 0x00), /* ASW slew rate */ CMD1(0xbe, 0x00), /* Dummy data for QuadData operation */ CMD1(0xc0, 0x11), /* Sleep out FR count (A) */ CMD1(0xc1, 0x11), /* Sleep out FR count (B) */ CMD1(0xc2, 0x11), /* Sleep out FR count (C) */ CMD2(0xc3, 0x20, 0x40), /* Sleep out FR count (D) */ CMD2(0xc4, 0x60, 0xc0), /* Sleep out FR count (E) */ CMD2(0xc5, 0x10, 0x20), /* Sleep out FR count (F) */ CMD1(0xc6, 0xc0), /* Sleep out FR count (G) */ CMD2(0xc7, 0x33, 0x43), /* Gamma 1 fine tuning (1) */ CMD1(0xc8, 0x44), /* Gamma 1 fine tuning (2) */ CMD1(0xc9, 0x33), /* Gamma 1 inclination adjustment */ CMD1(0xca, 0x00), /* Gamma 1 blue offset adjustment */ CMD2(0xec, 0x01, 0xf0), /* Horizontal clock cycles */ }; static void ssp_reconfig(struct ssp_dev *dev, int nparam) { static int last_nparam = -1; /* check if it is necessary to re-config SSP */ if (nparam == last_nparam) return; ssp_disable(dev); ssp_config(dev, (nparam == 2) ? 0x0010058a : 0x00100581, 0x18, 0, 0); last_nparam = nparam; } static void ssp_send_cmd(uint32_t *cmd, int num) { static int ssp_initialized; static struct ssp_dev ssp2; int i; if (!ssp_initialized) { ssp_init(&ssp2, 2, SSP_NO_IRQ); ssp_initialized = 1; } clk_enable(ssp2.ssp->clk); for (i = 0; i < num; i++, cmd++) { ssp_reconfig(&ssp2, (*cmd >> 30) & 0x3); ssp_write_word(&ssp2, *cmd & 0x3fffffff); /* FIXME: ssp_flush() is mandatory here to work */ ssp_flush(&ssp2); } clk_disable(ssp2.ssp->clk); } static void littleton_lcd_power(int on, struct fb_var_screeninfo *var) { if (on) { ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_on)); ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_reset)); if (var->xres > 240) { /* VGA */ ssp_send_cmd(ARRAY_AND_SIZE(lcd_vga_pass_through)); ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_config)); ssp_send_cmd(ARRAY_AND_SIZE(lcd_vga_transfer)); } else { /* QVGA */ ssp_send_cmd(ARRAY_AND_SIZE(lcd_qvga_pass_through)); ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_config)); ssp_send_cmd(ARRAY_AND_SIZE(lcd_qvga_transfer)); } } else ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_off)); } static struct pxafb_mode_info tpo_tdo24mtea1_modes[] = { [0] = { /* VGA */ .pixclock = 38250, .xres = 480, .yres = 640, .bpp = 16, .hsync_len = 8, .left_margin = 8, .right_margin = 24, .vsync_len = 2, .upper_margin = 2, .lower_margin = 4, .sync = 0, }, [1] = { /* QVGA */ .pixclock = 153000, .xres = 240, .yres = 320, .bpp = 16, .hsync_len = 8, .left_margin = 8, .right_margin = 88, .vsync_len = 2, .upper_margin = 2, .lower_margin = 2, .sync = 0, }, }; static struct pxafb_mach_info littleton_lcd_info = { .modes = tpo_tdo24mtea1_modes, .num_modes = 2, .lccr0 = LCCR0_Act, .lccr3 = LCCR3_HSP | LCCR3_VSP, .pxafb_lcd_power = littleton_lcd_power, }; static void littleton_init_lcd(void) { set_pxa_fb_info(&littleton_lcd_info); } #else static inline void littleton_init_lcd(void) {}; #endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULES */ static void __init littleton_init(void) { /* initialize MFP configurations */ pxa3xx_mfp_config(ARRAY_AND_SIZE(littleton_mfp_cfg)); /* * Note: we depend bootloader set the correct * value to MSC register for SMC91x. */ platform_device_register(&smc91x_device); littleton_init_lcd(); } MACHINE_START(LITTLETON, "Marvell Form Factor Development Platform (aka Littleton)") .phys_io = 0x40000000, .boot_params = 0xa0000100, .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .map_io = pxa_map_io, .init_irq = pxa3xx_init_irq, .timer = &pxa_timer, .init_machine = littleton_init, MACHINE_END