OMAP3x 移植

                                                                                  OMAP3x移植

================================音频驱动移植============================
1.添加内核配置选项
McSPI driver for OMAP24xx/OMAP34xx

SPI sound devices

2.修改arch/arm/mach-omap2/board-omap3beagle.c
static struct twl4030_codec_data beagle_codec_data = {
        .audio_mclk = 26000000,
        .audio = &beagle_audio_data,
};

static struct twl4030_platform_data beagle_twldata = {
        .irq_base       = TWL4030_IRQ_BASE,
        .irq_end        = TWL4030_IRQ_END,

        /* platform_data for children goes here */
        .usb            = &beagle_usb_data,
        .gpio           = &beagle_gpio_data,
        .codec          = &beagle_codec_data, //添加项
        .madc           = &beagle_madc_data,
        .vmmc1          = &beagle_vmmc1,
        .vsim           = &beagle_vsim,
        .vdac           = &beagle_vdac,
        .vpll2          = &beagle_vpll2,
};


3.修改sound/soc/codec/twl4030.c 中寄存器配置
headset相关
PREDL_CTL Predriver class D left amplifier control register
PREDR_CTL Predriver class D right amplifier control register

mic_main相关
REG_MICBIAS_CTL    Microphone bias and analog microphone amplifier power control register
REG_ANAMICL    Analog microphone left control and offset cancellation control register
REG_ANAMICR    Analog microphone right control register   





============================GPIO 按键驱动移植 ========================================
1.配置内核选项
Device Drivers  --->
    Input device support  ---> 
        Keyboards  --->
            GPIO Buttons

2.修改arch/arm/mach-omap2/board-omap3beagle.c文件
static struct gpio_keys_button gpio_buttons[] = {
        {
                .code                   = KEY_MENU,
                .gpio                   = 26,
                .desc                   = "menu",
                .wakeup                 = 1,
        },
        {
                .code                   = KEY_UNKNOWN,
                .gpio                   = 29,
                .desc                   = "user",
                .wakeup                 = 1,
        },

};

static struct gpio_keys_platform_data gpio_key_info = {
        .buttons        = gpio_buttons,
        .nbuttons       = ARRAY_SIZE(gpio_buttons),
};

static struct platform_device keys_gpio = {
        .name   = "gpio-keys",  //要根据drivers/input/keyboard/gpio_keys.c 来命名
        .id     = -1,
        .dev    = {
                .platform_data  = &gpio_key_info,
        },
};


static struct platform_device *omap3_beagle_devices[] __initdata = {
        &leds_gpio,
        &keys_gpio,    //添加项
        &beagle_dss_device,
        &omap_dm9000_dev,
};

=======================GPIO led的驱动移植====================================
1.内核配置
Device Drivers  --->
    LED Support  --->
         LED Support for GPIO connected LEDs
         LED Trigger support

2.修改arch/arm/mach-omap2/board-omap3beagle.c文件
static struct gpio_led gpio_leds[] = {
        {
                .name                   = "sys_led",
                .default_trigger        = "default-on",
                .gpio                   = 186,
                .active_low             = true,
        },
    ....
｝；

static struct gpio_led_platform_data gpio_led_info = {
        .leds           = gpio_leds,
        .num_leds       = ARRAY_SIZE(gpio_leds),
};


static struct platform_device leds_gpio = {
        .name   = "leds-gpio",
        .id     = -1,
        .dev    = {
                .platform_data  = &gpio_led_info,
        },
};

static struct platform_device *omap3_beagle_devices[] __initdata = {
        &leds_gpio,    ／／添加此项
        &keys_gpio,
        &beagle_dss_device,
        &omap_dm9000_dev,
};


===========================DM9000网卡移植=======================================
u-boot修改相关：

1.board/ti/beagle/beagle.h 文件修改
        MUX_VAL(CP(GPMC_NCS6),          (IDIS | PTU | EN  | M0)) /*GPMC_nCS6*//
        MUX_VAL(CP(ETK_D11_ES2),        (IEN  | PTU | EN  | M4)) /*GPIO_25*//

2.include/configs/omap3_beagle.h 添加
#define CONFIG_CMD_NET          /* bootp, tftpboot, rarpboot    */
#define CONFIG_CMD_NFS          /* NFS support                  */
#define CONFIG_CMD_PING


#if defined(CONFIG_CMD_NET)
/* DM9000 */
#define CONFIG_NET_MULTI                1
#define CONFIG_NET_RETRY_COUNT          20
#define CONFIG_DRIVER_DM9000            1
#define CONFIG_DM9000_BASE              0x2c000000
#define DM9000_IO                       CONFIG_DM9000_BASE
#define DM9000_DATA                     (CONFIG_DM9000_BASE + 0x400)
#define CONFIG_DM9000_USE_16BIT         1
#define CONFIG_DM9000_NO_SROM           1
#undef  CONFIG_DM9000_DEBUG
#define CONFIG_ETHADDR          aa:bb:cc:dd:ee:ff

#define CONFIG_ETHADDR          aa:bb:cc:dd:ee:ff
#define CONFIG_IPADDR           192.192.192.200
#define CONFIG_SERVERIP         192.192.192.90
#define CONFIG_GATEWAYIP        192.192.192.101
#define CONFIG_NETMASK          255.255.255.0
#endif /* (CONFIG_CMD_NET) */

3.board/ti/beagle/beagle.c文件添加

static void setup_net_chip(void)
{
#ifdef CONFIG_DRIVER_DM9000
        struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE;
        uchar enetaddr[6];
        u32 die_id_0;
        printf("calling setup_net_chip CONFIG_DRIVER_DM9000/n");
        /* Configure GPMC registers for DM9000 */
        writel(NET_GPMC_CONFIG1, &gpmc_cfg->cs[6].config1);
        writel(NET_GPMC_CONFIG2, &gpmc_cfg->cs[6].config2);
        writel(NET_GPMC_CONFIG3, &gpmc_cfg->cs[6].config3);
        writel(NET_GPMC_CONFIG4, &gpmc_cfg->cs[6].config4);
        writel(NET_GPMC_CONFIG5, &gpmc_cfg->cs[6].config5);
        writel(NET_GPMC_CONFIG6, &gpmc_cfg->cs[6].config6);
        writel(NET_GPMC_CONFIG7, &gpmc_cfg->cs[6].config7);

        /* Use OMAP DIE_ID as MAC address */
        if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
                printf("ethaddr not set, using Die ID/n");
                die_id_0 = readl(&id_base->die_id_0);
                enetaddr[0] = 0x02; /* locally administered */
                enetaddr[1] = readl(&id_base->die_id_1) & 0xff;
                enetaddr[2] = (die_id_0 & 0xff000000) >> 24;
                enetaddr[3] = (die_id_0 & 0x00ff0000) >> 16;
                enetaddr[4] = (die_id_0 & 0x0000ff00) >> 8;
                enetaddr[5] = (die_id_0 & 0x000000ff);
                eth_setenv_enetaddr("ethaddr", enetaddr);
        }
#endif
}

int board_eth_init(bd_t *bis)
{
        int rc = 0;
#ifdef CONFIG_DRIVER_DM9000
        rc = dm9000_initialize(bis);
#endif

        return rc;
}

4.board/ti/beagle/beagle.c文件中，在misc_init_r 函数中调用setup_net_chip


内核修改相关：
1.在内核配置make menuconfig 选上DM9000 support 去掉omap_mux surport
2.在 arch/arm/mach-omap2/board-omap3beagle.c添加如下：
#include <linux/interrupt.h>
#include <linux/dm9000.h>

#define OMAP_DM9000_BASE        0x2c000000
#define OMAP_DM9000_GPIO_IRQ    25
static struct resource omap3beagle_dm9000_resources[] = {
        [0] =   {
                .start  = OMAP_DM9000_BASE,
                .end    = (OMAP_DM9000_BASE + 0x4 - 1),
                .flags  = IORESOURCE_MEM,
        },
        [1] =   {
                .start  = (OMAP_DM9000_BASE + 0x400),
                .end    = (OMAP_DM9000_BASE + 0x400 + 0x4 - 1),
                .flags  = IORESOURCE_MEM,
        },
        [2] =   {
                .start  = OMAP_GPIO_IRQ(OMAP_DM9000_GPIO_IRQ),
                .end    = OMAP_GPIO_IRQ(OMAP_DM9000_GPIO_IRQ),
                .flags  = IORESOURCE_IRQ,
        },
};

static struct dm9000_plat_data omap_dm9000_platdata = {
        .flags = DM9000_PLATF_16BITONLY,
};

static struct platform_device omap3beagle_dm9000_device = {
        .name           = "dm9000",
        .id             = -1,
        .num_resources  = ARRAY_SIZE(omap3beagle_dm9000_resources),
        .resource       = omap3beagle_dm9000_resources,
        .dev            = {
                .platform_data = &omap_dm9000_platdata,
        },
};
static inline void __init omap3beagle_init_dm9000(void)
{
        if (omap_request_gpio(OMAP_DM9000_GPIO_IRQ) < 0) {
                printk(KERN_ERR "Failed to request GPIO%d for dm9000 IRQ/n",
                        OMAP_DM9000_GPIO_IRQ);
                return;
        }

        omap_set_gpio_direction(OMAP_DM9000_GPIO_IRQ, 1);
}

3.
static struct platform_device *omap3evm_devices[] __initdata = {
......
        &omap3beagle_dm9000_device,//添加此设备

};


4.在 arch/arm/mach-omap2/board-omap3beagle.c添加如下：
static void __init omap3_beagle_init_irq(void)
{
......
        omap_gpio_init();
        omap3beagle_init_dm9000();//这是添加的！！！

}

5.对Dm9000.c进行修改,添加mad_addr。