[PATCH 3/3] ARM: pxa168: Add board support for gplugD

Tanmay Upadhyay
2011-05-02T06:00:00Z

Tested UART console, Ethernet & I2C interfaces

Signed-off-by: Tanmay Upadhyay <tanmay.upadhyay@einfochips.com>
---
arch/arm/mach-mmp/Kconfig | 7 +
arch/arm/mach-mmp/Makefile | 1 +
arch/arm/mach-mmp/gplugd.c | 189 +++++++++++++++++++++++++++
arch/arm/mach-mmp/include/mach/mfp-gplugd.h | 52 ++++++++
4 files changed, 249 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-mmp/gplugd.c
create mode 100644 arch/arm/mach-mmp/include/mach/mfp-gplugd.h

diff --git a/arch/arm/mach-mmp/Kconfig b/arch/arm/mach-mmp/Kconfig
index 67793a6..56ef5f6 100644
--- a/arch/arm/mach-mmp/Kconfig
+++ b/arch/arm/mach-mmp/Kconfig
@@ -77,6 +77,13 @@ config MACH_TETON_BGA
Say 'Y' here if you want to support the Marvell PXA168-based
Teton BGA Development Board.

+config MACH_SHEEVAD
+ bool "Marvell's PXA168 GuruPlug Display (gplugD) Board"
+ select CPU_PXA168
+ help
+ Say 'Y' here if you want to support the Marvell PXA168-based
+ GuruPlug Display (gplugD) Board
+
endmenu

config CPU_PXA168
diff --git a/arch/arm/mach-mmp/Makefile b/arch/arm/mach-mmp/Makefile
index 5c68382..b0ac942 100644
--- a/arch/arm/mach-mmp/Makefile
+++ b/arch/arm/mach-mmp/Makefile
@@ -19,3 +19,4 @@ obj-$(CONFIG_MACH_BROWNSTONE) += brownstone.o
obj-$(CONFIG_MACH_FLINT) += flint.o
obj-$(CONFIG_MACH_MARVELL_JASPER) += jasper.o
obj-$(CONFIG_MACH_TETON_BGA) += teton_bga.o
+obj-$(CONFIG_MACH_SHEEVAD) += gplugd.o
diff --git a/arch/arm/mach-mmp/gplugd.c b/arch/arm/mach-mmp/gplugd.c
new file mode 100644
index 0000000..c070c24
--- /dev/null
+++ b/arch/arm/mach-mmp/gplugd.c
@@ -0,0 +1,189 @@
+/*
+ * 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 <asm/mach/arch.h>
+#include <asm/mach-types.h>
+
+#include <mach/gpio.h>
+#include <mach/pxa168.h>
+#include <mach/mfp-pxa168.h>
+#include <mach/mfp-gplugd.h>
+
+#include "common.h"
+
+static unsigned long gplugd_pin_config[] __initdata = {
+ /* UART3 */
+ GPIO8_UART3_SOUT,
+ GPIO9_UART3_SIN,
+ GPI1O_UART3_CTS,
+ GPI11_UART3_RTS,
+
+ /* 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,
+
+ /* 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(104);
+ }
+
+ 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(104);
+ }
+}
+
+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(0);
+ pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(gplugd_i2c_board_info));
+
+ pxa168_add_eth(&gplugd_eth_platform_data);
+}
+
+MACHINE_START(SHEEVAD, "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,
+MACHINE_END
diff --git a/arch/arm/mach-mmp/include/mach/mfp-gplugd.h b/arch/arm/mach-mmp/include/mach/mfp-gplugd.h
new file mode 100644
index 0000000..b8cf38d
--- /dev/null
+++ b/arch/arm/mach-mmp/include/mach/mfp-gplugd.h
@@ -0,0 +1,52 @@
+/*
+ * linux/arch/arm/mach-mmp/include/mach/mfp-gplugd.h
+ *
+ * MFP definitions used in gplugD
+ *
+ * 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.
+ */
+
+#ifndef __MACH_MFP_GPLUGD_H
+#define __MACH_MFP_GPLUGD_H
+
+#include <plat/mfp.h>
+#include <mach/mfp.h>
+
+/* UART3 */
+#define GPIO8_UART3_SOUT MFP_CFG(GPIO8, AF2)
+#define GPIO9_UART3_SIN MFP_CFG(GPIO9, AF2)
+#define GPI1O_UART3_CTS MFP_CFG(GPIO10, AF2)
+#define GPI11_UART3_RTS MFP_CFG(GPIO11, AF2)
+
+/* MMC2 */
+#define GPIO28_MMC2_CMD MFP_CFG_DRV(GPIO28, AF6, FAST)
+#define GPIO29_MMC2_CLK MFP_CFG_DRV(GPIO29, AF6, FAST)
+#define GPIO30_MMC2_DAT0 MFP_CFG_DRV(GPIO30, AF6, FAST)
+#define GPIO31_MMC2_DAT1 MFP_CFG_DRV(GPIO31, AF6, FAST)
+#define GPIO32_MMC2_DAT2 MFP_CFG_DRV(GPIO32, AF6, FAST)
+#define GPIO33_MMC2_DAT3 MFP_CFG_DRV(GPIO33, AF6, FAST)
+
+/* I2S */
+#undef GPIO114_I2S_FRM
+#undef GPIO115_I2S_BCLK
+
+#define GPIO114_I2S_FRM MFP_CFG_DRV(GPIO114, AF1, FAST)
+#define GPIO115_I2S_BCLK MFP_CFG_DRV(GPIO115, AF1, FAST)
+#define GPIO116_I2S_TXD MFP_CFG_DRV(GPIO116, AF1, FAST)
+
+/* MMC4 */
+#define GPIO125_MMC4_DAT3 MFP_CFG_DRV(GPIO125, AF7, FAST)
+#define GPIO126_MMC4_DAT2 MFP_CFG_DRV(GPIO126, AF7, FAST)
+#define GPIO127_MMC4_DAT1 MFP_CFG_DRV(GPIO127, AF7, FAST)
+#define GPIO0_2_MMC4_DAT0 MFP_CFG_DRV(GPIO0_2, AF7, FAST)
+#define GPIO1_2_MMC4_CMD MFP_CFG_DRV(GPIO1_2, AF7, FAST)
+#define GPIO2_2_MMC4_CLK MFP_CFG_DRV(GPIO2_2, AF7, FAST)
+
+/* OTG GPIO */
+#define GPIO_USB_OTG_PEN 18
+#define GPIO_USB_OIDIR 20
+
+/* Other GPIOs are 35, 84, 85 */
+#endif /* __MACH_MFP_GPLUGD_H */
--
1.7.0.4