--- /dev/null
+/*
+ * 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,
+ }
+};
+
+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
git.openpandora.org / pandora-kernel.git / commitdiff