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

[eric.y.miao@gmail.com (Eric Miao)]

On Mon, May 2, 2011 at 2:00 PM, Tanmay Upadhyay
<tanmay.upadhyay@einfochips.com> wrote:
> 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 ++++++++

I'm good to the patch. Yet if the definitions in mfp-gplugd.h is not that
gplugd _specific_, please move them into mfp-pxa168.c so other pxa168
platforms can benefit, if they are indeed gplugd specific, just incorporate
the differences into gplugd.c when defining those pins.


> ?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
>
>