diff options
Diffstat (limited to 'arch/arm/mach-pxa/littleton.c')
| -rw-r--r-- | arch/arm/mach-pxa/littleton.c | 325 |
1 files changed, 325 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c new file mode 100644 index 00000000000..0a4b54c2131 --- /dev/null +++ b/arch/arm/mach-pxa/littleton.c @@ -0,0 +1,325 @@ +/* + * 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 <eric.miao@marvell.com> + * + * 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/init.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/platform_device.h> +#include <linux/clk.h> + +#include <asm/types.h> +#include <asm/setup.h> +#include <asm/memory.h> +#include <asm/mach-types.h> +#include <asm/hardware.h> +#include <asm/irq.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <asm/arch/pxa-regs.h> +#include <asm/arch/mfp-pxa300.h> +#include <asm/arch/gpio.h> +#include <asm/arch/pxafb.h> +#include <asm/arch/ssp.h> +#include <asm/arch/littleton.h> + +#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 | IRQF_TRIGGER_FALLING, + } +}; + +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 |