[ARM] pxa: PXA3xx base support
Signed-off-by: eric miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-pxa/zylonite_pxa320.c b/arch/arm/mach-pxa/zylonite_pxa320.c
new file mode 100644
index 0000000..63cb36b
--- /dev/null
+++ b/arch/arm/mach-pxa/zylonite_pxa320.c
@@ -0,0 +1,173 @@
+/*
+ * linux/arch/arm/mach-pxa/zylonite_pxa320.c
+ *
+ * PXA320 specific support code for the
+ * PXA3xx Development Platform (aka Zylonite)
+ *
+ * Copyright (C) 2007 Marvell Internation Ltd.
+ * 2007-08-21: eric miao <eric.y.miao@gmail.com>
+ * initial version
+ *
+ * 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
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/arch/gpio.h>
+#include <asm/arch/mfp-pxa320.h>
+#include <asm/arch/zylonite.h>
+
+#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
+
+static mfp_cfg_t mfp_cfg[] __initdata = {
+ /* LCD */
+ GPIO6_2_LCD_LDD_0,
+ GPIO7_2_LCD_LDD_1,
+ GPIO8_2_LCD_LDD_2,
+ GPIO9_2_LCD_LDD_3,
+ GPIO10_2_LCD_LDD_4,
+ GPIO11_2_LCD_LDD_5,
+ GPIO12_2_LCD_LDD_6,
+ GPIO13_2_LCD_LDD_7,
+ GPIO63_LCD_LDD_8,
+ GPIO64_LCD_LDD_9,
+ GPIO65_LCD_LDD_10,
+ GPIO66_LCD_LDD_11,
+ GPIO67_LCD_LDD_12,
+ GPIO68_LCD_LDD_13,
+ GPIO69_LCD_LDD_14,
+ GPIO70_LCD_LDD_15,
+ GPIO71_LCD_LDD_16,
+ GPIO72_LCD_LDD_17,
+ GPIO73_LCD_CS_N,
+ GPIO74_LCD_VSYNC,
+ GPIO14_2_LCD_FCLK,
+ GPIO15_2_LCD_LCLK,
+ GPIO16_2_LCD_PCLK,
+ GPIO17_2_LCD_BIAS,
+
+ /* FFUART */
+ GPIO41_UART1_RXD,
+ GPIO42_UART1_TXD,
+ GPIO43_UART1_CTS,
+ GPIO44_UART1_DCD,
+ GPIO45_UART1_DSR,
+ GPIO46_UART1_RI,
+ GPIO47_UART1_DTR,
+ GPIO48_UART1_RTS,
+
+ /* AC97 */
+ GPIO34_AC97_SYSCLK,
+ GPIO35_AC97_SDATA_IN_0,
+ GPIO37_AC97_SDATA_OUT,
+ GPIO38_AC97_SYNC,
+ GPIO39_AC97_BITCLK,
+ GPIO40_AC97_nACRESET,
+
+ /* I2C */
+ GPIO32_I2C_SCL,
+ GPIO33_I2C_SDA,
+
+ /* Keypad */
+ GPIO105_KP_DKIN_0,
+ GPIO106_KP_DKIN_1,
+ GPIO113_KP_MKIN_0,
+ GPIO114_KP_MKIN_1,
+ GPIO115_KP_MKIN_2,
+ GPIO116_KP_MKIN_3,
+ GPIO117_KP_MKIN_4,
+ GPIO118_KP_MKIN_5,
+ GPIO119_KP_MKIN_6,
+ GPIO120_KP_MKIN_7,
+ GPIO121_KP_MKOUT_0,
+ GPIO122_KP_MKOUT_1,
+ GPIO123_KP_MKOUT_2,
+ GPIO124_KP_MKOUT_3,
+ GPIO125_KP_MKOUT_4,
+ GPIO126_KP_MKOUT_5,
+ GPIO127_KP_MKOUT_6,
+ GPIO5_2_KP_MKOUT_7,
+
+ /* Ethernet */
+ GPIO4_nCS3,
+ GPIO90_GPIO,
+};
+
+#define NUM_LCD_DETECT_PINS 7
+
+static int lcd_detect_pins[] __initdata = {
+ MFP_PIN_GPIO72, /* LCD_LDD_17 - ORIENT */
+ MFP_PIN_GPIO71, /* LCD_LDD_16 - LCDID[5] */
+ MFP_PIN_GPIO17_2, /* LCD_BIAS - LCDID[4] */
+ MFP_PIN_GPIO15_2, /* LCD_LCLK - LCDID[3] */
+ MFP_PIN_GPIO14_2, /* LCD_FCLK - LCDID[2] */
+ MFP_PIN_GPIO73, /* LCD_CS_N - LCDID[1] */
+ MFP_PIN_GPIO74, /* LCD_VSYNC - LCDID[0] */
+ /*
+ * set the MFP_PIN_GPIO 14/15/17 to alternate function other than
+ * GPIO to avoid input level confliction with 14_2, 15_2, 17_2
+ */
+ MFP_PIN_GPIO14,
+ MFP_PIN_GPIO15,
+ MFP_PIN_GPIO17,
+};
+
+static int lcd_detect_mfpr[] __initdata = {
+ /* AF0, DS 1X, Pull Neither, Edge Clear */
+ 0x8440, 0x8440, 0x8440, 0x8440, 0x8440, 0x8440, 0x8440,
+ 0xc442, /* Backlight, Pull-Up, AF2 */
+ 0x8445, /* AF5 */
+ 0x8445, /* AF5 */
+};
+
+static void __init zylonite_detect_lcd_panel(void)
+{
+ unsigned long mfpr_save[ARRAY_SIZE(lcd_detect_pins)];
+ int i, gpio, id = 0;
+
+ /* save the original MFP settings of these pins and configure them
+ * as GPIO Input, DS01X, Pull Neither, Edge Clear
+ */
+ for (i = 0; i < ARRAY_SIZE(lcd_detect_pins); i++) {
+ mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]);
+ pxa3xx_mfp_write(lcd_detect_pins[i], lcd_detect_mfpr[i]);
+ }
+
+ for (i = 0; i < NUM_LCD_DETECT_PINS; i++) {
+ id = id << 1;
+ gpio = mfp_to_gpio(lcd_detect_pins[i]);
+ gpio_direction_input(gpio);
+
+ if (gpio_get_value(gpio))
+ id = id | 0x1;
+ }
+
+ /* lcd id, flush out bit 1 */
+ lcd_id = id & 0x3d;
+
+ /* lcd orientation, portrait or landscape */
+ lcd_orientation = (id >> 6) & 0x1;
+
+ /* restore the original MFP settings */
+ for (i = 0; i < ARRAY_SIZE(lcd_detect_pins); i++)
+ pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]);
+}
+
+void __init zylonite_pxa320_init(void)
+{
+ if (cpu_is_pxa320()) {
+ /* initialize MFP */
+ pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));
+
+ /* detect LCD panel */
+ zylonite_detect_lcd_panel();
+
+ /* GPIO pin assignment */
+ gpio_backlight = mfp_to_gpio(MFP_PIN_GPIO14);
+ gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO9);
+ }
+}