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authorAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
committerAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
commitb4b6116a13633898cf868f2f103c96a90c4c20f8 (patch)
tree93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/arm/mach-mmp/gplugd.c
parentedd4be777c953e5faafc80d091d3084b4343f5d3 (diff)
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fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/mach-mmp/gplugd.c')
-rw-r--r--arch/arm/mach-mmp/gplugd.c199
1 files changed, 199 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/gplugd.c b/arch/arm/mach-mmp/gplugd.c
new file mode 100644
index 00000000000..87765467de6
--- /dev/null
+++ b/arch/arm/mach-mmp/gplugd.c
@@ -0,0 +1,199 @@
+/*
+ * linux/arch/arm/mach-mmp/gplugd.c
+ *
+ * Support for the Marvell PXA168-based GuruPlug Display (gplugD) Platform.
+ *
+ * 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/gpio.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach-types.h>
+
+#include <mach/pxa168.h>
+#include <mach/mfp-pxa168.h>
+
+#include "common.h"
+
+static unsigned long gplugd_pin_config[] __initdata = {
+ /* UART3 */
+ GPIO8_UART3_TXD,
+ GPIO9_UART3_RXD,
+ GPIO1O_UART3_CTS,
+ GPIO11_UART3_RTS,
+
+ /* USB OTG PEN */
+ GPIO18_GPIO,
+
+ /* MMC2 */
+ GPIO28_MMC2_CMD,
+ GPIO29_MMC2_CLK,
+ GPIO30_MMC2_DAT0,
+ GPIO31_MMC2_DAT1,
+ GPIO32_MMC2_DAT2,
+ GPIO33_MMC2_DAT3,
+
+ /* LCD & HDMI clock selection GPIO: 0: 74.176MHz, 1: 74.25 MHz */
+ GPIO35_GPIO,
+ GPIO36_GPIO, /* CEC Interrupt */
+
+ /* MMC1 */
+ GPIO43_MMC1_CLK,
+ GPIO49_MMC1_CMD,
+ GPIO41_MMC1_DAT0,
+ GPIO40_MMC1_DAT1,
+ GPIO52_MMC1_DAT2,
+ GPIO51_MMC1_DAT3,
+ GPIO53_MMC1_CD,
+
+ /* LCD */
+ GPIO56_LCD_FCLK_RD,
+ GPIO57_LCD_LCLK_A0,
+ GPIO58_LCD_PCLK_WR,
+ GPIO59_LCD_DENA_BIAS,
+ GPIO60_LCD_DD0,
+ GPIO61_LCD_DD1,
+ GPIO62_LCD_DD2,
+ GPIO63_LCD_DD3,
+ GPIO64_LCD_DD4,
+ GPIO65_LCD_DD5,
+ GPIO66_LCD_DD6,
+ GPIO67_LCD_DD7,
+ GPIO68_LCD_DD8,
+ GPIO69_LCD_DD9,
+ GPIO70_LCD_DD10,
+ GPIO71_LCD_DD11,
+ GPIO72_LCD_DD12,
+ GPIO73_LCD_DD13,
+ GPIO74_LCD_DD14,
+ GPIO75_LCD_DD15,
+ GPIO76_LCD_DD16,
+ GPIO77_LCD_DD17,
+ GPIO78_LCD_DD18,
+ GPIO79_LCD_DD19,
+ GPIO80_LCD_DD20,
+ GPIO81_LCD_DD21,
+ GPIO82_LCD_DD22,
+ GPIO83_LCD_DD23,
+
+ /* GPIO */
+ GPIO84_GPIO,
+ GPIO85_GPIO,
+
+ /* Fast-Ethernet*/
+ GPIO86_TX_CLK,
+ GPIO87_TX_EN,
+ GPIO88_TX_DQ3,
+ GPIO89_TX_DQ2,
+ GPIO90_TX_DQ1,
+ GPIO91_TX_DQ0,
+ GPIO92_MII_CRS,
+ GPIO93_MII_COL,
+ GPIO94_RX_CLK,
+ GPIO95_RX_ER,
+ GPIO96_RX_DQ3,
+ GPIO97_RX_DQ2,
+ GPIO98_RX_DQ1,
+ GPIO99_RX_DQ0,
+ GPIO100_MII_MDC,
+ GPIO101_MII_MDIO,
+ GPIO103_RX_DV,
+ GPIO104_GPIO, /* Reset PHY */
+
+ /* RTC interrupt */
+ GPIO102_GPIO,
+
+ /* I2C */
+ GPIO105_CI2C_SDA,
+ GPIO106_CI2C_SCL,
+
+ /* SPI NOR Flash on SSP2 */
+ GPIO107_SSP2_RXD,
+ GPIO108_SSP2_TXD,
+ GPIO110_GPIO, /* SPI_CSn */
+ GPIO111_SSP2_CLK,
+
+ /* Select JTAG */
+ GPIO109_GPIO,
+
+ /* I2S */
+ GPIO114_I2S_FRM,
+ GPIO115_I2S_BCLK,
+ GPIO116_I2S_TXD
+};
+
+static struct i2c_board_info gplugd_i2c_board_info[] = {
+ {
+ .type = "isl1208",
+ .addr = 0x6F,
+ }
+};
+
+/* Bring PHY out of reset by setting GPIO 104 */
+static int gplugd_eth_init(void)
+{
+ if (unlikely(gpio_request(104, "ETH_RESET_N"))) {
+ printk(KERN_ERR "Can't get hold of GPIO 104 to bring Ethernet "
+ "PHY out of reset\n");
+ return -EIO;
+ }
+
+ gpio_direction_output(104, 1);
+ gpio_free(104);
+ return 0;
+}
+
+struct pxa168_eth_platform_data gplugd_eth_platform_data = {
+ .port_number = 0,
+ .phy_addr = 0,
+ .speed = 0, /* Autonagotiation */
+ .init = gplugd_eth_init,
+};
+
+static void __init select_disp_freq(void)
+{
+ /* set GPIO 35 & clear GPIO 85 to set LCD External Clock to 74.25 MHz */
+ if (unlikely(gpio_request(35, "DISP_FREQ_SEL"))) {
+ printk(KERN_ERR "Can't get hold of GPIO 35 to select display "
+ "frequency\n");
+ } else {
+ gpio_direction_output(35, 1);
+ gpio_free(35);
+ }
+
+ if (unlikely(gpio_request(85, "DISP_FREQ_SEL_2"))) {
+ printk(KERN_ERR "Can't get hold of GPIO 85 to select display "
+ "frequency\n");
+ } else {
+ gpio_direction_output(85, 0);
+ gpio_free(85);
+ }
+}
+
+static void __init gplugd_init(void)
+{
+ mfp_config(ARRAY_AND_SIZE(gplugd_pin_config));
+
+ select_disp_freq();
+
+ /* on-chip devices */
+ pxa168_add_uart(3);
+ pxa168_add_ssp(1);
+ pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(gplugd_i2c_board_info));
+ platform_device_register(&pxa168_device_gpio);
+
+ pxa168_add_eth(&gplugd_eth_platform_data);
+}
+
+MACHINE_START(GPLUGD, "PXA168-based GuruPlug Display (gplugD) Platform")
+ .map_io = mmp_map_io,
+ .nr_irqs = IRQ_BOARD_START,
+ .init_irq = pxa168_init_irq,
+ .timer = &pxa168_timer,
+ .init_machine = gplugd_init,
+ .restart = pxa168_restart,
+MACHINE_END