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+/*
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+ * linux/arch/arm/mach-mmp/gplugd.c
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+ *
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+ * Support for the Marvell PXA168-based GuruPlug Display (gplugD) Platform.
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * publishhed by the Free Software Foundation.
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+ */
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+
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+#include <linux/init.h>
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+
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+#include <asm/mach/arch.h>
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+#include <asm/mach-types.h>
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+
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+#include <mach/gpio.h>
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+#include <mach/pxa168.h>
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+#include <mach/mfp-pxa168.h>
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+#include <mach/mfp-gplugd.h>
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+
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+#include "common.h"
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+
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+static unsigned long gplugd_pin_config[] __initdata = {
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+ /* UART3 */
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+ GPIO8_UART3_SOUT,
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+ GPIO9_UART3_SIN,
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+ GPI1O_UART3_CTS,
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+ GPI11_UART3_RTS,
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+
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+ /* MMC2 */
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+ GPIO28_MMC2_CMD,
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+ GPIO29_MMC2_CLK,
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+ GPIO30_MMC2_DAT0,
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+ GPIO31_MMC2_DAT1,
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+ GPIO32_MMC2_DAT2,
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+ GPIO33_MMC2_DAT3,
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+
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+ /* LCD & HDMI clock selection GPIO: 0: 74.176MHz, 1: 74.25 MHz */
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+ GPIO35_GPIO,
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+ GPIO36_GPIO, /* CEC Interrupt */
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+
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+ /* MMC1 */
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+ GPIO43_MMC1_CLK,
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+ GPIO49_MMC1_CMD,
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+ GPIO41_MMC1_DAT0,
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+ GPIO40_MMC1_DAT1,
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+ GPIO52_MMC1_DAT2,
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+ GPIO51_MMC1_DAT3,
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+ GPIO53_MMC1_CD,
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+
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+ /* LCD */
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+ GPIO56_LCD_FCLK_RD,
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+ GPIO57_LCD_LCLK_A0,
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+ GPIO58_LCD_PCLK_WR,
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+ GPIO59_LCD_DENA_BIAS,
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+ GPIO60_LCD_DD0,
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+ GPIO61_LCD_DD1,
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+ GPIO62_LCD_DD2,
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+ GPIO63_LCD_DD3,
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+ GPIO64_LCD_DD4,
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+ GPIO65_LCD_DD5,
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+ GPIO66_LCD_DD6,
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+ GPIO67_LCD_DD7,
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+ GPIO68_LCD_DD8,
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+ GPIO69_LCD_DD9,
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+ GPIO70_LCD_DD10,
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+ GPIO71_LCD_DD11,
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+ GPIO72_LCD_DD12,
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+ GPIO73_LCD_DD13,
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+ GPIO74_LCD_DD14,
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+ GPIO75_LCD_DD15,
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+ GPIO76_LCD_DD16,
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+ GPIO77_LCD_DD17,
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+ GPIO78_LCD_DD18,
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+ GPIO79_LCD_DD19,
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+ GPIO80_LCD_DD20,
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+ GPIO81_LCD_DD21,
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+ GPIO82_LCD_DD22,
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+ GPIO83_LCD_DD23,
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+
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+ /* GPIO */
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+ GPIO84_GPIO,
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+ GPIO85_GPIO,
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+
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+ /* Fast-Ethernet*/
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+ GPIO86_TX_CLK,
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+ GPIO87_TX_EN,
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+ GPIO88_TX_DQ3,
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+ GPIO89_TX_DQ2,
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+ GPIO90_TX_DQ1,
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+ GPIO91_TX_DQ0,
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+ GPIO92_MII_CRS,
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+ GPIO93_MII_COL,
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+ GPIO94_RX_CLK,
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+ GPIO95_RX_ER,
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+ GPIO96_RX_DQ3,
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+ GPIO97_RX_DQ2,
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+ GPIO98_RX_DQ1,
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+ GPIO99_RX_DQ0,
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+ GPIO100_MII_MDC,
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+ GPIO101_MII_MDIO,
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+ GPIO103_RX_DV,
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+ GPIO104_GPIO, /* Reset PHY */
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+
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+ /* RTC interrupt */
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+ GPIO102_GPIO,
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+
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+ /* I2C */
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+ GPIO105_CI2C_SDA,
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+ GPIO106_CI2C_SCL,
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+
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+ /* Select JTAG */
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+ GPIO109_GPIO,
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+
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+ /* I2S */
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+ GPIO114_I2S_FRM,
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+ GPIO115_I2S_BCLK,
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+ GPIO116_I2S_TXD
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+};
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+
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+static struct i2c_board_info gplugd_i2c_board_info[] = {
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+ {
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+ .type = "isl1208",
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+ .addr = 0x6F,
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+ }
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+};
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+
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+/* Bring PHY out of reset by setting GPIO 104 */
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+static int gplugd_eth_init(void)
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+{
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+ if (unlikely(gpio_request(104, "ETH_RESET_N"))) {
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+ printk(KERN_ERR "Can't get hold of GPIO 104 to bring Ethernet "
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+ "PHY out of reset\n");
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+ return -EIO;
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+ }
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+
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+ gpio_direction_output(104, 1);
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+ gpio_free(104);
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+ return 0;
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+}
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+
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+struct pxa168_eth_platform_data gplugd_eth_platform_data = {
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+ .port_number = 0,
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+ .phy_addr = 0,
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+ .speed = 0, /* Autonagotiation */
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+ .init = gplugd_eth_init,
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+};
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+
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+static void __init select_disp_freq(void)
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+{
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+ /* set GPIO 35 & clear GPIO 85 to set LCD External Clock to 74.25 MHz */
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+ if (unlikely(gpio_request(35, "DISP_FREQ_SEL"))) {
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+ printk(KERN_ERR "Can't get hold of GPIO 35 to select display "
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+ "frequency\n");
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+ } else {
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+ gpio_direction_output(35, 1);
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+ gpio_free(104);
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+ }
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+
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+ if (unlikely(gpio_request(85, "DISP_FREQ_SEL_2"))) {
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+ printk(KERN_ERR "Can't get hold of GPIO 85 to select display "
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+ "frequency\n");
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+ } else {
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+ gpio_direction_output(85, 0);
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+ gpio_free(104);
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+ }
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+}
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+
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+static void __init gplugd_init(void)
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+{
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+ mfp_config(ARRAY_AND_SIZE(gplugd_pin_config));
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+
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+ select_disp_freq();
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+
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+ /* on-chip devices */
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+ pxa168_add_uart(3);
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+ pxa168_add_ssp(0);
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+ pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(gplugd_i2c_board_info));
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+
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+ pxa168_add_eth(&gplugd_eth_platform_data);
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+}
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+
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+MACHINE_START(SHEEVAD, "PXA168-based GuruPlug Display (gplugD) Platform")
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+ .map_io = mmp_map_io,
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+ .nr_irqs = IRQ_BOARD_START,
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+ .init_irq = pxa168_init_irq,
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+ .timer = &pxa168_timer,
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+ .init_machine = gplugd_init,
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+MACHINE_END
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Tanmay Upadhyay