blob: de1ec6dc01e949cf1ee27fe89a375424f5f545f8 [file] [log] [blame]
/*
* TI DaVinci DM644x chip specific setup
*
* Author: Kevin Hilman, Deep Root Systems, LLC
*
* 2007 (c) Deep Root Systems, LLC. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#include <linux/clk-provider.h>
#include <linux/clk/davinci.h>
#include <linux/clkdev.h>
#include <linux/dmaengine.h>
#include <linux/init.h>
#include <linux/platform_data/edma.h>
#include <linux/platform_data/gpio-davinci.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <asm/mach/map.h>
#include <mach/common.h>
#include <mach/cputype.h>
#include <mach/irqs.h>
#include <mach/mux.h>
#include <mach/serial.h>
#include <mach/time.h>
#include "asp.h"
#include "davinci.h"
#include "mux.h"
/*
* Device specific clocks
*/
#define DM644X_REF_FREQ 27000000
#define DM644X_EMAC_BASE 0x01c80000
#define DM644X_EMAC_MDIO_BASE (DM644X_EMAC_BASE + 0x4000)
#define DM644X_EMAC_CNTRL_OFFSET 0x0000
#define DM644X_EMAC_CNTRL_MOD_OFFSET 0x1000
#define DM644X_EMAC_CNTRL_RAM_OFFSET 0x2000
#define DM644X_EMAC_CNTRL_RAM_SIZE 0x2000
static struct emac_platform_data dm644x_emac_pdata = {
.ctrl_reg_offset = DM644X_EMAC_CNTRL_OFFSET,
.ctrl_mod_reg_offset = DM644X_EMAC_CNTRL_MOD_OFFSET,
.ctrl_ram_offset = DM644X_EMAC_CNTRL_RAM_OFFSET,
.ctrl_ram_size = DM644X_EMAC_CNTRL_RAM_SIZE,
.version = EMAC_VERSION_1,
};
static struct resource dm644x_emac_resources[] = {
{
.start = DM644X_EMAC_BASE,
.end = DM644X_EMAC_BASE + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_EMACINT,
.end = IRQ_EMACINT,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device dm644x_emac_device = {
.name = "davinci_emac",
.id = 1,
.dev = {
.platform_data = &dm644x_emac_pdata,
},
.num_resources = ARRAY_SIZE(dm644x_emac_resources),
.resource = dm644x_emac_resources,
};
static struct resource dm644x_mdio_resources[] = {
{
.start = DM644X_EMAC_MDIO_BASE,
.end = DM644X_EMAC_MDIO_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device dm644x_mdio_device = {
.name = "davinci_mdio",
.id = 0,
.num_resources = ARRAY_SIZE(dm644x_mdio_resources),
.resource = dm644x_mdio_resources,
};
/*
* Device specific mux setup
*
* soc description mux mode mode mux dbg
* reg offset mask mode
*/
static const struct mux_config dm644x_pins[] = {
#ifdef CONFIG_DAVINCI_MUX
MUX_CFG(DM644X, HDIREN, 0, 16, 1, 1, true)
MUX_CFG(DM644X, ATAEN, 0, 17, 1, 1, true)
MUX_CFG(DM644X, ATAEN_DISABLE, 0, 17, 1, 0, true)
MUX_CFG(DM644X, HPIEN_DISABLE, 0, 29, 1, 0, true)
MUX_CFG(DM644X, AEAW, 0, 0, 31, 31, true)
MUX_CFG(DM644X, AEAW0, 0, 0, 1, 0, true)
MUX_CFG(DM644X, AEAW1, 0, 1, 1, 0, true)
MUX_CFG(DM644X, AEAW2, 0, 2, 1, 0, true)
MUX_CFG(DM644X, AEAW3, 0, 3, 1, 0, true)
MUX_CFG(DM644X, AEAW4, 0, 4, 1, 0, true)
MUX_CFG(DM644X, MSTK, 1, 9, 1, 0, false)
MUX_CFG(DM644X, I2C, 1, 7, 1, 1, false)
MUX_CFG(DM644X, MCBSP, 1, 10, 1, 1, false)
MUX_CFG(DM644X, UART1, 1, 1, 1, 1, true)
MUX_CFG(DM644X, UART2, 1, 2, 1, 1, true)
MUX_CFG(DM644X, PWM0, 1, 4, 1, 1, false)
MUX_CFG(DM644X, PWM1, 1, 5, 1, 1, false)
MUX_CFG(DM644X, PWM2, 1, 6, 1, 1, false)
MUX_CFG(DM644X, VLYNQEN, 0, 15, 1, 1, false)
MUX_CFG(DM644X, VLSCREN, 0, 14, 1, 1, false)
MUX_CFG(DM644X, VLYNQWD, 0, 12, 3, 3, false)
MUX_CFG(DM644X, EMACEN, 0, 31, 1, 1, true)
MUX_CFG(DM644X, GPIO3V, 0, 31, 1, 0, true)
MUX_CFG(DM644X, GPIO0, 0, 24, 1, 0, true)
MUX_CFG(DM644X, GPIO3, 0, 25, 1, 0, false)
MUX_CFG(DM644X, GPIO43_44, 1, 7, 1, 0, false)
MUX_CFG(DM644X, GPIO46_47, 0, 22, 1, 0, true)
MUX_CFG(DM644X, RGB666, 0, 22, 1, 1, true)
MUX_CFG(DM644X, LOEEN, 0, 24, 1, 1, true)
MUX_CFG(DM644X, LFLDEN, 0, 25, 1, 1, false)
#endif
};
/* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
static u8 dm644x_default_priorities[DAVINCI_N_AINTC_IRQ] = {
[IRQ_VDINT0] = 2,
[IRQ_VDINT1] = 6,
[IRQ_VDINT2] = 6,
[IRQ_HISTINT] = 6,
[IRQ_H3AINT] = 6,
[IRQ_PRVUINT] = 6,
[IRQ_RSZINT] = 6,
[7] = 7,
[IRQ_VENCINT] = 6,
[IRQ_ASQINT] = 6,
[IRQ_IMXINT] = 6,
[IRQ_VLCDINT] = 6,
[IRQ_USBINT] = 4,
[IRQ_EMACINT] = 4,
[14] = 7,
[15] = 7,
[IRQ_CCINT0] = 5, /* dma */
[IRQ_CCERRINT] = 5, /* dma */
[IRQ_TCERRINT0] = 5, /* dma */
[IRQ_TCERRINT] = 5, /* dma */
[IRQ_PSCIN] = 7,
[21] = 7,
[IRQ_IDE] = 4,
[23] = 7,
[IRQ_MBXINT] = 7,
[IRQ_MBRINT] = 7,
[IRQ_MMCINT] = 7,
[IRQ_SDIOINT] = 7,
[28] = 7,
[IRQ_DDRINT] = 7,
[IRQ_AEMIFINT] = 7,
[IRQ_VLQINT] = 4,
[IRQ_TINT0_TINT12] = 2, /* clockevent */
[IRQ_TINT0_TINT34] = 2, /* clocksource */
[IRQ_TINT1_TINT12] = 7, /* DSP timer */
[IRQ_TINT1_TINT34] = 7, /* system tick */
[IRQ_PWMINT0] = 7,
[IRQ_PWMINT1] = 7,
[IRQ_PWMINT2] = 7,
[IRQ_I2C] = 3,
[IRQ_UARTINT0] = 3,
[IRQ_UARTINT1] = 3,
[IRQ_UARTINT2] = 3,
[IRQ_SPINT0] = 3,
[IRQ_SPINT1] = 3,
[45] = 7,
[IRQ_DSP2ARM0] = 4,
[IRQ_DSP2ARM1] = 4,
[IRQ_GPIO0] = 7,
[IRQ_GPIO1] = 7,
[IRQ_GPIO2] = 7,
[IRQ_GPIO3] = 7,
[IRQ_GPIO4] = 7,
[IRQ_GPIO5] = 7,
[IRQ_GPIO6] = 7,
[IRQ_GPIO7] = 7,
[IRQ_GPIOBNK0] = 7,
[IRQ_GPIOBNK1] = 7,
[IRQ_GPIOBNK2] = 7,
[IRQ_GPIOBNK3] = 7,
[IRQ_GPIOBNK4] = 7,
[IRQ_COMMTX] = 7,
[IRQ_COMMRX] = 7,
[IRQ_EMUINT] = 7,
};
/*----------------------------------------------------------------------*/
static s8 queue_priority_mapping[][2] = {
/* {event queue no, Priority} */
{0, 3},
{1, 7},
{-1, -1},
};
static const struct dma_slave_map dm644x_edma_map[] = {
{ "davinci-mcbsp", "tx", EDMA_FILTER_PARAM(0, 2) },
{ "davinci-mcbsp", "rx", EDMA_FILTER_PARAM(0, 3) },
{ "spi_davinci", "tx", EDMA_FILTER_PARAM(0, 16) },
{ "spi_davinci", "rx", EDMA_FILTER_PARAM(0, 17) },
{ "dm6441-mmc.0", "rx", EDMA_FILTER_PARAM(0, 26) },
{ "dm6441-mmc.0", "tx", EDMA_FILTER_PARAM(0, 27) },
};
static struct edma_soc_info dm644x_edma_pdata = {
.queue_priority_mapping = queue_priority_mapping,
.default_queue = EVENTQ_1,
.slave_map = dm644x_edma_map,
.slavecnt = ARRAY_SIZE(dm644x_edma_map),
};
static struct resource edma_resources[] = {
{
.name = "edma3_cc",
.start = 0x01c00000,
.end = 0x01c00000 + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma3_tc0",
.start = 0x01c10000,
.end = 0x01c10000 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma3_tc1",
.start = 0x01c10400,
.end = 0x01c10400 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma3_ccint",
.start = IRQ_CCINT0,
.flags = IORESOURCE_IRQ,
},
{
.name = "edma3_ccerrint",
.start = IRQ_CCERRINT,
.flags = IORESOURCE_IRQ,
},
/* not using TC*_ERR */
};
static const struct platform_device_info dm644x_edma_device __initconst = {
.name = "edma",
.id = 0,
.dma_mask = DMA_BIT_MASK(32),
.res = edma_resources,
.num_res = ARRAY_SIZE(edma_resources),
.data = &dm644x_edma_pdata,
.size_data = sizeof(dm644x_edma_pdata),
};
/* DM6446 EVM uses ASP0; line-out is a pair of RCA jacks */
static struct resource dm644x_asp_resources[] = {
{
.name = "mpu",
.start = DAVINCI_ASP0_BASE,
.end = DAVINCI_ASP0_BASE + SZ_8K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = DAVINCI_DMA_ASP0_TX,
.end = DAVINCI_DMA_ASP0_TX,
.flags = IORESOURCE_DMA,
},
{
.start = DAVINCI_DMA_ASP0_RX,
.end = DAVINCI_DMA_ASP0_RX,
.flags = IORESOURCE_DMA,
},
};
static struct platform_device dm644x_asp_device = {
.name = "davinci-mcbsp",
.id = -1,
.num_resources = ARRAY_SIZE(dm644x_asp_resources),
.resource = dm644x_asp_resources,
};
#define DM644X_VPSS_BASE 0x01c73400
static struct resource dm644x_vpss_resources[] = {
{
/* VPSS Base address */
.name = "vpss",
.start = DM644X_VPSS_BASE,
.end = DM644X_VPSS_BASE + 0xff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device dm644x_vpss_device = {
.name = "vpss",
.id = -1,
.dev.platform_data = "dm644x_vpss",
.num_resources = ARRAY_SIZE(dm644x_vpss_resources),
.resource = dm644x_vpss_resources,
};
static struct resource dm644x_vpfe_resources[] = {
{
.start = IRQ_VDINT0,
.end = IRQ_VDINT0,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_VDINT1,
.end = IRQ_VDINT1,
.flags = IORESOURCE_IRQ,
},
};
static u64 dm644x_video_dma_mask = DMA_BIT_MASK(32);
static struct resource dm644x_ccdc_resource[] = {
/* CCDC Base address */
{
.start = 0x01c70400,
.end = 0x01c70400 + 0xff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device dm644x_ccdc_dev = {
.name = "dm644x_ccdc",
.id = -1,
.num_resources = ARRAY_SIZE(dm644x_ccdc_resource),
.resource = dm644x_ccdc_resource,
.dev = {
.dma_mask = &dm644x_video_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
static struct platform_device dm644x_vpfe_dev = {
.name = CAPTURE_DRV_NAME,
.id = -1,
.num_resources = ARRAY_SIZE(dm644x_vpfe_resources),
.resource = dm644x_vpfe_resources,
.dev = {
.dma_mask = &dm644x_video_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
#define DM644X_OSD_BASE 0x01c72600
static struct resource dm644x_osd_resources[] = {
{
.start = DM644X_OSD_BASE,
.end = DM644X_OSD_BASE + 0x1ff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device dm644x_osd_dev = {
.name = DM644X_VPBE_OSD_SUBDEV_NAME,
.id = -1,
.num_resources = ARRAY_SIZE(dm644x_osd_resources),
.resource = dm644x_osd_resources,
.dev = {
.dma_mask = &dm644x_video_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
#define DM644X_VENC_BASE 0x01c72400
static struct resource dm644x_venc_resources[] = {
{
.start = DM644X_VENC_BASE,
.end = DM644X_VENC_BASE + 0x17f,
.flags = IORESOURCE_MEM,
},
};
#define DM644X_VPSS_MUXSEL_PLL2_MODE BIT(0)
#define DM644X_VPSS_MUXSEL_VPBECLK_MODE BIT(1)
#define DM644X_VPSS_VENCLKEN BIT(3)
#define DM644X_VPSS_DACCLKEN BIT(4)
static int dm644x_venc_setup_clock(enum vpbe_enc_timings_type type,
unsigned int pclock)
{
int ret = 0;
u32 v = DM644X_VPSS_VENCLKEN;
switch (type) {
case VPBE_ENC_STD:
v |= DM644X_VPSS_DACCLKEN;
writel(v, DAVINCI_SYSMOD_VIRT(SYSMOD_VPSS_CLKCTL));
break;
case VPBE_ENC_DV_TIMINGS:
if (pclock <= 27000000) {
v |= DM644X_VPSS_DACCLKEN;
writel(v, DAVINCI_SYSMOD_VIRT(SYSMOD_VPSS_CLKCTL));
} else {
/*
* For HD, use external clock source since
* HD requires higher clock rate
*/
v |= DM644X_VPSS_MUXSEL_VPBECLK_MODE;
writel(v, DAVINCI_SYSMOD_VIRT(SYSMOD_VPSS_CLKCTL));
}
break;
default:
ret = -EINVAL;
}
return ret;
}
static struct resource dm644x_v4l2_disp_resources[] = {
{
.start = IRQ_VENCINT,
.end = IRQ_VENCINT,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device dm644x_vpbe_display = {
.name = "vpbe-v4l2",
.id = -1,
.num_resources = ARRAY_SIZE(dm644x_v4l2_disp_resources),
.resource = dm644x_v4l2_disp_resources,
.dev = {
.dma_mask = &dm644x_video_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
static struct venc_platform_data dm644x_venc_pdata = {
.setup_clock = dm644x_venc_setup_clock,
};
static struct platform_device dm644x_venc_dev = {
.name = DM644X_VPBE_VENC_SUBDEV_NAME,
.id = -1,
.num_resources = ARRAY_SIZE(dm644x_venc_resources),
.resource = dm644x_venc_resources,
.dev = {
.dma_mask = &dm644x_video_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &dm644x_venc_pdata,
},
};
static struct platform_device dm644x_vpbe_dev = {
.name = "vpbe_controller",
.id = -1,
.dev = {
.dma_mask = &dm644x_video_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
static struct resource dm644_gpio_resources[] = {
{ /* registers */
.start = DAVINCI_GPIO_BASE,
.end = DAVINCI_GPIO_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
{ /* interrupt */
.start = IRQ_GPIOBNK0,
.end = IRQ_GPIOBNK0,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_GPIOBNK1,
.end = IRQ_GPIOBNK1,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_GPIOBNK2,
.end = IRQ_GPIOBNK2,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_GPIOBNK3,
.end = IRQ_GPIOBNK3,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_GPIOBNK4,
.end = IRQ_GPIOBNK4,
.flags = IORESOURCE_IRQ,
},
};
static struct davinci_gpio_platform_data dm644_gpio_platform_data = {
.ngpio = 71,
};
int __init dm644x_gpio_register(void)
{
return davinci_gpio_register(dm644_gpio_resources,
ARRAY_SIZE(dm644_gpio_resources),
&dm644_gpio_platform_data);
}
/*----------------------------------------------------------------------*/
static struct map_desc dm644x_io_desc[] = {
{
.virtual = IO_VIRT,
.pfn = __phys_to_pfn(IO_PHYS),
.length = IO_SIZE,
.type = MT_DEVICE
},
};
/* Contents of JTAG ID register used to identify exact cpu type */
static struct davinci_id dm644x_ids[] = {
{
.variant = 0x0,
.part_no = 0xb700,
.manufacturer = 0x017,
.cpu_id = DAVINCI_CPU_ID_DM6446,
.name = "dm6446",
},
{
.variant = 0x1,
.part_no = 0xb700,
.manufacturer = 0x017,
.cpu_id = DAVINCI_CPU_ID_DM6446,
.name = "dm6446a",
},
};
/*
* T0_BOT: Timer 0, bottom: clockevent source for hrtimers
* T0_TOP: Timer 0, top : clocksource for generic timekeeping
* T1_BOT: Timer 1, bottom: (used by DSP in TI DSPLink code)
* T1_TOP: Timer 1, top : <unused>
*/
static struct davinci_timer_info dm644x_timer_info = {
.timers = davinci_timer_instance,
.clockevent_id = T0_BOT,
.clocksource_id = T0_TOP,
};
static struct plat_serial8250_port dm644x_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 2,
},
{
.flags = 0,
}
};
static struct plat_serial8250_port dm644x_serial1_platform_data[] = {
{
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 2,
},
{
.flags = 0,
}
};
static struct plat_serial8250_port dm644x_serial2_platform_data[] = {
{
.mapbase = DAVINCI_UART2_BASE,
.irq = IRQ_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 2,
},
{
.flags = 0,
}
};
struct platform_device dm644x_serial_device[] = {
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = dm644x_serial0_platform_data,
}
},
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM1,
.dev = {
.platform_data = dm644x_serial1_platform_data,
}
},
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM2,
.dev = {
.platform_data = dm644x_serial2_platform_data,
}
},
{
}
};
static const struct davinci_soc_info davinci_soc_info_dm644x = {
.io_desc = dm644x_io_desc,
.io_desc_num = ARRAY_SIZE(dm644x_io_desc),
.jtag_id_reg = 0x01c40028,
.ids = dm644x_ids,
.ids_num = ARRAY_SIZE(dm644x_ids),
.pinmux_base = DAVINCI_SYSTEM_MODULE_BASE,
.pinmux_pins = dm644x_pins,
.pinmux_pins_num = ARRAY_SIZE(dm644x_pins),
.intc_base = DAVINCI_ARM_INTC_BASE,
.intc_type = DAVINCI_INTC_TYPE_AINTC,
.intc_irq_prios = dm644x_default_priorities,
.intc_irq_num = DAVINCI_N_AINTC_IRQ,
.timer_info = &dm644x_timer_info,
.emac_pdata = &dm644x_emac_pdata,
.sram_dma = 0x00008000,
.sram_len = SZ_16K,
};
void __init dm644x_init_asp(void)
{
davinci_cfg_reg(DM644X_MCBSP);
platform_device_register(&dm644x_asp_device);
}
void __init dm644x_init(void)
{
davinci_common_init(&davinci_soc_info_dm644x);
davinci_map_sysmod();
}
void __init dm644x_init_time(void)
{
void __iomem *pll1, *psc;
struct clk *clk;
clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, DM644X_REF_FREQ);
pll1 = ioremap(DAVINCI_PLL1_BASE, SZ_1K);
dm644x_pll1_init(NULL, pll1, NULL);
psc = ioremap(DAVINCI_PWR_SLEEP_CNTRL_BASE, SZ_4K);
dm644x_psc_init(NULL, psc);
clk = clk_get(NULL, "timer0");
davinci_timer_init(clk);
}
static struct resource dm644x_pll2_resources[] = {
{
.start = DAVINCI_PLL2_BASE,
.end = DAVINCI_PLL2_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device dm644x_pll2_device = {
.name = "dm644x-pll2",
.id = -1,
.resource = dm644x_pll2_resources,
.num_resources = ARRAY_SIZE(dm644x_pll2_resources),
};
void __init dm644x_register_clocks(void)
{
/* PLL1 and PSC are registered in dm644x_init_time() */
platform_device_register(&dm644x_pll2_device);
}
int __init dm644x_init_video(struct vpfe_config *vpfe_cfg,
struct vpbe_config *vpbe_cfg)
{
if (vpfe_cfg || vpbe_cfg)
platform_device_register(&dm644x_vpss_device);
if (vpfe_cfg) {
dm644x_vpfe_dev.dev.platform_data = vpfe_cfg;
platform_device_register(&dm644x_ccdc_dev);
platform_device_register(&dm644x_vpfe_dev);
}
if (vpbe_cfg) {
dm644x_vpbe_dev.dev.platform_data = vpbe_cfg;
platform_device_register(&dm644x_osd_dev);
platform_device_register(&dm644x_venc_dev);
platform_device_register(&dm644x_vpbe_dev);
platform_device_register(&dm644x_vpbe_display);
}
return 0;
}
void __init dm644x_init_devices(void)
{
struct platform_device *edma_pdev;
int ret;
edma_pdev = platform_device_register_full(&dm644x_edma_device);
if (IS_ERR(edma_pdev))
pr_warn("%s: Failed to register eDMA\n", __func__);
platform_device_register(&dm644x_mdio_device);
platform_device_register(&dm644x_emac_device);
ret = davinci_init_wdt();
if (ret)
pr_warn("%s: watchdog init failed: %d\n", __func__, ret);
}