1 files changed, 188 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/zylonite_pxa300.c b/arch/arm/mach-pxa/zylonite_pxa300.c
new file mode 100644
index 000000000000..b5fbd2f4c693
--- /dev/null
+++ b/arch/arm/mach-pxa/zylonite_pxa300.c
@@ -0,0 +1,188 @@
+/*
+ * linux/arch/arm/mach-pxa/zylonite_pxa300.c
+ *
+ * PXA300/PXA310 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/gpio.h>
+#include <asm/arch/mfp-pxa300.h>
+#include <asm/arch/zylonite.h>
+
+#define ARRAY_AND_SIZE(x)       (x), ARRAY_SIZE(x)
+
+/* PXA300/PXA310 common configurations */
+static mfp_cfg_t common_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,
+        GPIO76_LCD_VSYNC,
+        GPIO127_LCD_CS_N,
+
+        /* BTUART */
+        GPIO111_UART2_RTS,
+        GPIO112_UART2_RXD,
+        GPIO113_UART2_TXD,
+        GPIO114_UART2_CTS,
+
+        /* STUART */
+        GPIO109_UART3_TXD,
+        GPIO110_UART3_RXD,
+
+        /* AC97 */
+        GPIO23_AC97_nACRESET,
+        GPIO24_AC97_SYSCLK,
+        GPIO29_AC97_BITCLK,
+        GPIO25_AC97_SDATA_IN_0,
+        GPIO27_AC97_SDATA_OUT,
+        GPIO28_AC97_SYNC,
+
+        /* Keypad */
+        GPIO107_KP_DKIN_0,
+        GPIO108_KP_DKIN_1,
+        GPIO115_KP_MKIN_0,
+        GPIO116_KP_MKIN_1,
+        GPIO117_KP_MKIN_2,
+        GPIO118_KP_MKIN_3,
+        GPIO119_KP_MKIN_4,
+        GPIO120_KP_MKIN_5,
+        GPIO2_2_KP_MKIN_6,
+        GPIO3_2_KP_MKIN_7,
+        GPIO121_KP_MKOUT_0,
+        GPIO122_KP_MKOUT_1,
+        GPIO123_KP_MKOUT_2,
+        GPIO124_KP_MKOUT_3,
+        GPIO125_KP_MKOUT_4,
+        GPIO4_2_KP_MKOUT_5,
+        GPIO5_2_KP_MKOUT_6,
+        GPIO6_2_KP_MKOUT_7,
+};
+
+static mfp_cfg_t pxa300_mfp_cfg[] __initdata = {
+        /* FFUART */
+        GPIO30_UART1_RXD,
+        GPIO31_UART1_TXD,
+        GPIO32_UART1_CTS,
+        GPIO37_UART1_RTS,
+        GPIO33_UART1_DCD,
+        GPIO34_UART1_DSR,
+        GPIO35_UART1_RI,
+        GPIO36_UART1_DTR,
+
+        /* Ethernet */
+        GPIO2_nCS3,
+        GPIO99_GPIO,
+};
+
+static mfp_cfg_t pxa310_mfp_cfg[] __initdata = {
+        /* FFUART */
+        GPIO99_UART1_RXD,
+        GPIO100_UART1_TXD,
+        GPIO101_UART1_CTS,
+        GPIO106_UART1_RTS,
+
+        /* Ethernet */
+        GPIO2_nCS3,
+        GPIO102_GPIO,
+};
+
+#define NUM_LCD_DETECT_PINS     7
+
+static int lcd_detect_pins[] __initdata = {
+        MFP_PIN_GPIO71, /* LCD_LDD_17 - ORIENT */
+        MFP_PIN_GPIO70, /* LCD_LDD_16 - LCDID[5] */
+        MFP_PIN_GPIO75, /* LCD_BIAS   - LCDID[4] */
+        MFP_PIN_GPIO73, /* LCD_LCLK   - LCDID[3] */
+        MFP_PIN_GPIO72, /* LCD_FCLK   - LCDID[2] */
+        MFP_PIN_GPIO127,/* LCD_CS_N   - LCDID[1] */
+        MFP_PIN_GPIO76, /* LCD_VSYNC  - LCDID[0] */
+};
+
+static void __init zylonite_detect_lcd_panel(void)
+{
+        unsigned long mfpr_save[NUM_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 < NUM_LCD_DETECT_PINS; i++) {
+                mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]);
+                pxa3xx_mfp_write(lcd_detect_pins[i], 0x8440);
+        }
+
+        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 < NUM_LCD_DETECT_PINS; i++)
+                pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]);
+}
+
+void __init zylonite_pxa300_init(void)
+{
+        if (cpu_is_pxa300() || cpu_is_pxa310()) {
+                /* initialize MFP */
+                pxa3xx_mfp_config(ARRAY_AND_SIZE(common_mfp_cfg));
+
+                /* detect LCD panel */
+                zylonite_detect_lcd_panel();
+
+                /* GPIO pin assignment */
+                gpio_backlight = mfp_to_gpio(MFP_PIN_GPIO20);
+        }
+
+        if (cpu_is_pxa300()) {
+                pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa300_mfp_cfg));
+                gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO99);
+        }
+
+        if (cpu_is_pxa310()) {
+                pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg));
+                gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO102);
+        }
+}