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kernel_samsung_a34x-permissive/arch/arm/mach-davinci/dm646x.c

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Import A346BXXU1AWB9 kernel source Android 13
2024-04-28 06:49:01 -07:00
/*
* 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/dma-mapping.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"
#define DAVINCI_VPIF_BASE (0x01C12000)
#define VDD3P3V_VID_MASK (BIT_MASK(3) | BIT_MASK(2) | BIT_MASK(1) |\
BIT_MASK(0))
#define VSCLKDIS_MASK (BIT_MASK(11) | BIT_MASK(10) | BIT_MASK(9) |\
BIT_MASK(8))
#define DM646X_EMAC_BASE 0x01c80000
#define DM646X_EMAC_MDIO_BASE (DM646X_EMAC_BASE + 0x4000)
#define DM646X_EMAC_CNTRL_OFFSET 0x0000
#define DM646X_EMAC_CNTRL_MOD_OFFSET 0x1000
#define DM646X_EMAC_CNTRL_RAM_OFFSET 0x2000
#define DM646X_EMAC_CNTRL_RAM_SIZE 0x2000
static struct emac_platform_data dm646x_emac_pdata = {
.ctrl_reg_offset = DM646X_EMAC_CNTRL_OFFSET,
.ctrl_mod_reg_offset = DM646X_EMAC_CNTRL_MOD_OFFSET,
.ctrl_ram_offset = DM646X_EMAC_CNTRL_RAM_OFFSET,
.ctrl_ram_size = DM646X_EMAC_CNTRL_RAM_SIZE,
.version = EMAC_VERSION_2,
};
static struct resource dm646x_emac_resources[] = {
{
.start = DM646X_EMAC_BASE,
.end = DM646X_EMAC_BASE + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_DM646X_EMACRXTHINT,
.end = IRQ_DM646X_EMACRXTHINT,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_DM646X_EMACRXINT,
.end = IRQ_DM646X_EMACRXINT,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_DM646X_EMACTXINT,
.end = IRQ_DM646X_EMACTXINT,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_DM646X_EMACMISCINT,
.end = IRQ_DM646X_EMACMISCINT,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device dm646x_emac_device = {
.name = "davinci_emac",
.id = 1,
.dev = {
.platform_data = &dm646x_emac_pdata,
},
.num_resources = ARRAY_SIZE(dm646x_emac_resources),
.resource = dm646x_emac_resources,
};
static struct resource dm646x_mdio_resources[] = {
{
.start = DM646X_EMAC_MDIO_BASE,
.end = DM646X_EMAC_MDIO_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device dm646x_mdio_device = {
.name = "davinci_mdio",
.id = 0,
.num_resources = ARRAY_SIZE(dm646x_mdio_resources),
.resource = dm646x_mdio_resources,
};
/*
* Device specific mux setup
*
* soc description mux mode mode mux dbg
* reg offset mask mode
*/
static const struct mux_config dm646x_pins[] = {
#ifdef CONFIG_DAVINCI_MUX
MUX_CFG(DM646X, ATAEN, 0, 0, 5, 1, true)
MUX_CFG(DM646X, AUDCK1, 0, 29, 1, 0, false)
MUX_CFG(DM646X, AUDCK0, 0, 28, 1, 0, false)
MUX_CFG(DM646X, CRGMUX, 0, 24, 7, 5, true)
MUX_CFG(DM646X, STSOMUX_DISABLE, 0, 22, 3, 0, true)
MUX_CFG(DM646X, STSIMUX_DISABLE, 0, 20, 3, 0, true)
MUX_CFG(DM646X, PTSOMUX_DISABLE, 0, 18, 3, 0, true)
MUX_CFG(DM646X, PTSIMUX_DISABLE, 0, 16, 3, 0, true)
MUX_CFG(DM646X, STSOMUX, 0, 22, 3, 2, true)
MUX_CFG(DM646X, STSIMUX, 0, 20, 3, 2, true)
MUX_CFG(DM646X, PTSOMUX_PARALLEL, 0, 18, 3, 2, true)
MUX_CFG(DM646X, PTSIMUX_PARALLEL, 0, 16, 3, 2, true)
MUX_CFG(DM646X, PTSOMUX_SERIAL, 0, 18, 3, 3, true)
MUX_CFG(DM646X, PTSIMUX_SERIAL, 0, 16, 3, 3, true)
#endif
};
static u8 dm646x_default_priorities[DAVINCI_N_AINTC_IRQ] = {
[IRQ_DM646X_VP_VERTINT0] = 7,
[IRQ_DM646X_VP_VERTINT1] = 7,
[IRQ_DM646X_VP_VERTINT2] = 7,
[IRQ_DM646X_VP_VERTINT3] = 7,
[IRQ_DM646X_VP_ERRINT] = 7,
[IRQ_DM646X_RESERVED_1] = 7,
[IRQ_DM646X_RESERVED_2] = 7,
[IRQ_DM646X_WDINT] = 7,
[IRQ_DM646X_CRGENINT0] = 7,
[IRQ_DM646X_CRGENINT1] = 7,
[IRQ_DM646X_TSIFINT0] = 7,
[IRQ_DM646X_TSIFINT1] = 7,
[IRQ_DM646X_VDCEINT] = 7,
[IRQ_DM646X_USBINT] = 7,
[IRQ_DM646X_USBDMAINT] = 7,
[IRQ_DM646X_PCIINT] = 7,
[IRQ_CCINT0] = 7, /* dma */
[IRQ_CCERRINT] = 7, /* dma */
[IRQ_TCERRINT0] = 7, /* dma */
[IRQ_TCERRINT] = 7, /* dma */
[IRQ_DM646X_TCERRINT2] = 7,
[IRQ_DM646X_TCERRINT3] = 7,
[IRQ_DM646X_IDE] = 7,
[IRQ_DM646X_HPIINT] = 7,
[IRQ_DM646X_EMACRXTHINT] = 7,
[IRQ_DM646X_EMACRXINT] = 7,
[IRQ_DM646X_EMACTXINT] = 7,
[IRQ_DM646X_EMACMISCINT] = 7,
[IRQ_DM646X_MCASP0TXINT] = 7,
[IRQ_DM646X_MCASP0RXINT] = 7,
[IRQ_DM646X_RESERVED_3] = 7,
[IRQ_DM646X_MCASP1TXINT] = 7,
[IRQ_TINT0_TINT12] = 7, /* clockevent */
[IRQ_TINT0_TINT34] = 7, /* clocksource */
[IRQ_TINT1_TINT12] = 7, /* DSP timer */
[IRQ_TINT1_TINT34] = 7, /* system tick */
[IRQ_PWMINT0] = 7,
[IRQ_PWMINT1] = 7,
[IRQ_DM646X_VLQINT] = 7,
[IRQ_I2C] = 7,
[IRQ_UARTINT0] = 7,
[IRQ_UARTINT1] = 7,
[IRQ_DM646X_UARTINT2] = 7,
[IRQ_DM646X_SPINT0] = 7,
[IRQ_DM646X_SPINT1] = 7,
[IRQ_DM646X_DSP2ARMINT] = 7,
[IRQ_DM646X_RESERVED_4] = 7,
[IRQ_DM646X_PSCINT] = 7,
[IRQ_DM646X_GPIO0] = 7,
[IRQ_DM646X_GPIO1] = 7,
[IRQ_DM646X_GPIO2] = 7,
[IRQ_DM646X_GPIO3] = 7,
[IRQ_DM646X_GPIO4] = 7,
[IRQ_DM646X_GPIO5] = 7,
[IRQ_DM646X_GPIO6] = 7,
[IRQ_DM646X_GPIO7] = 7,
[IRQ_DM646X_GPIOBNK0] = 7,
[IRQ_DM646X_GPIOBNK1] = 7,
[IRQ_DM646X_GPIOBNK2] = 7,
[IRQ_DM646X_DDRINT] = 7,
[IRQ_DM646X_AEMIFINT] = 7,
[IRQ_COMMTX] = 7,
[IRQ_COMMRX] = 7,
[IRQ_EMUINT] = 7,
};
/*----------------------------------------------------------------------*/
/* Four Transfer Controllers on DM646x */
static s8 dm646x_queue_priority_mapping[][2] = {
/* {event queue no, Priority} */
{0, 4},
{1, 0},
{2, 5},
{3, 1},
{-1, -1},
};
static const struct dma_slave_map dm646x_edma_map[] = {
{ "davinci-mcasp.0", "tx", EDMA_FILTER_PARAM(0, 6) },
{ "davinci-mcasp.0", "rx", EDMA_FILTER_PARAM(0, 9) },
{ "davinci-mcasp.1", "tx", EDMA_FILTER_PARAM(0, 12) },
{ "spi_davinci", "tx", EDMA_FILTER_PARAM(0, 16) },
{ "spi_davinci", "rx", EDMA_FILTER_PARAM(0, 17) },
};
static struct edma_soc_info dm646x_edma_pdata = {
.queue_priority_mapping = dm646x_queue_priority_mapping,
.default_queue = EVENTQ_1,
.slave_map = dm646x_edma_map,
.slavecnt = ARRAY_SIZE(dm646x_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_tc2",
.start = 0x01c10800,
.end = 0x01c10800 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma3_tc3",
.start = 0x01c10c00,
.end = 0x01c10c00 + 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 dm646x_edma_device __initconst = {
.name = "edma",
.id = 0,
.dma_mask = DMA_BIT_MASK(32),
.res = edma_resources,
.num_res = ARRAY_SIZE(edma_resources),
.data = &dm646x_edma_pdata,
.size_data = sizeof(dm646x_edma_pdata),
};
static struct resource dm646x_mcasp0_resources[] = {
{
.name = "mpu",
.start = DAVINCI_DM646X_MCASP0_REG_BASE,
.end = DAVINCI_DM646X_MCASP0_REG_BASE + (SZ_1K << 1) - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "tx",
.start = DAVINCI_DM646X_DMA_MCASP0_AXEVT0,
.end = DAVINCI_DM646X_DMA_MCASP0_AXEVT0,
.flags = IORESOURCE_DMA,
},
{
.name = "rx",
.start = DAVINCI_DM646X_DMA_MCASP0_AREVT0,
.end = DAVINCI_DM646X_DMA_MCASP0_AREVT0,
.flags = IORESOURCE_DMA,
},
{
.name = "tx",
.start = IRQ_DM646X_MCASP0TXINT,
.flags = IORESOURCE_IRQ,
},
{
.name = "rx",
.start = IRQ_DM646X_MCASP0RXINT,
.flags = IORESOURCE_IRQ,
},
};
/* DIT mode only, rx is not supported */
static struct resource dm646x_mcasp1_resources[] = {
{
.name = "mpu",
.start = DAVINCI_DM646X_MCASP1_REG_BASE,
.end = DAVINCI_DM646X_MCASP1_REG_BASE + (SZ_1K << 1) - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "tx",
.start = DAVINCI_DM646X_DMA_MCASP1_AXEVT1,
.end = DAVINCI_DM646X_DMA_MCASP1_AXEVT1,
.flags = IORESOURCE_DMA,
},
{
.name = "tx",
.start = IRQ_DM646X_MCASP1TXINT,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device dm646x_mcasp0_device = {
.name = "davinci-mcasp",
.id = 0,
.num_resources = ARRAY_SIZE(dm646x_mcasp0_resources),
.resource = dm646x_mcasp0_resources,
};
static struct platform_device dm646x_mcasp1_device = {
.name = "davinci-mcasp",
.id = 1,
.num_resources = ARRAY_SIZE(dm646x_mcasp1_resources),
.resource = dm646x_mcasp1_resources,
};
static struct platform_device dm646x_dit_device = {
.name = "spdif-dit",
.id = -1,
};
static u64 vpif_dma_mask = DMA_BIT_MASK(32);
static struct resource vpif_resource[] = {
{
.start = DAVINCI_VPIF_BASE,
.end = DAVINCI_VPIF_BASE + 0x03ff,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device vpif_dev = {
.name = "vpif",
.id = -1,
.dev = {
.dma_mask = &vpif_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = vpif_resource,
.num_resources = ARRAY_SIZE(vpif_resource),
};
static struct resource vpif_display_resource[] = {
{
.start = IRQ_DM646X_VP_VERTINT2,
.end = IRQ_DM646X_VP_VERTINT2,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_DM646X_VP_VERTINT3,
.end = IRQ_DM646X_VP_VERTINT3,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device vpif_display_dev = {
.name = "vpif_display",
.id = -1,
.dev = {
.dma_mask = &vpif_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = vpif_display_resource,
.num_resources = ARRAY_SIZE(vpif_display_resource),
};
static struct resource vpif_capture_resource[] = {
{
.start = IRQ_DM646X_VP_VERTINT0,
.end = IRQ_DM646X_VP_VERTINT0,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_DM646X_VP_VERTINT1,
.end = IRQ_DM646X_VP_VERTINT1,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device vpif_capture_dev = {
.name = "vpif_capture",
.id = -1,
.dev = {
.dma_mask = &vpif_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = vpif_capture_resource,
.num_resources = ARRAY_SIZE(vpif_capture_resource),
};
static struct resource dm646x_gpio_resources[] = {
{ /* registers */
.start = DAVINCI_GPIO_BASE,
.end = DAVINCI_GPIO_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
{ /* interrupt */
.start = IRQ_DM646X_GPIOBNK0,
.end = IRQ_DM646X_GPIOBNK0,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_DM646X_GPIOBNK1,
.end = IRQ_DM646X_GPIOBNK1,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_DM646X_GPIOBNK2,
.end = IRQ_DM646X_GPIOBNK2,
.flags = IORESOURCE_IRQ,
},
};
static struct davinci_gpio_platform_data dm646x_gpio_platform_data = {
.ngpio = 43,
};
int __init dm646x_gpio_register(void)
{
return davinci_gpio_register(dm646x_gpio_resources,
ARRAY_SIZE(dm646x_gpio_resources),
&dm646x_gpio_platform_data);
}
/*----------------------------------------------------------------------*/
static struct map_desc dm646x_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 dm646x_ids[] = {
{
.variant = 0x0,
.part_no = 0xb770,
.manufacturer = 0x017,
.cpu_id = DAVINCI_CPU_ID_DM6467,
.name = "dm6467_rev1.x",
},
{
.variant = 0x1,
.part_no = 0xb770,
.manufacturer = 0x017,
.cpu_id = DAVINCI_CPU_ID_DM6467,
.name = "dm6467_rev3.x",
},
};
/*
* 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 dm646x_timer_info = {
.timers = davinci_timer_instance,
.clockevent_id = T0_BOT,
.clocksource_id = T0_TOP,
};
static struct plat_serial8250_port dm646x_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_IOREMAP,
.iotype = UPIO_MEM32,
.regshift = 2,
},
{
.flags = 0,
}
};
static struct plat_serial8250_port dm646x_serial1_platform_data[] = {
{
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_IOREMAP,
.iotype = UPIO_MEM32,
.regshift = 2,
},
{
.flags = 0,
}
};
static struct plat_serial8250_port dm646x_serial2_platform_data[] = {
{
.mapbase = DAVINCI_UART2_BASE,
.irq = IRQ_DM646X_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_IOREMAP,
.iotype = UPIO_MEM32,
.regshift = 2,
},
{
.flags = 0,
}
};
struct platform_device dm646x_serial_device[] = {
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = dm646x_serial0_platform_data,
}
},
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM1,
.dev = {
.platform_data = dm646x_serial1_platform_data,
}
},
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM2,
.dev = {
.platform_data = dm646x_serial2_platform_data,
}
},
{
}
};
static const struct davinci_soc_info davinci_soc_info_dm646x = {
.io_desc = dm646x_io_desc,
.io_desc_num = ARRAY_SIZE(dm646x_io_desc),
.jtag_id_reg = 0x01c40028,
.ids = dm646x_ids,
.ids_num = ARRAY_SIZE(dm646x_ids),
.pinmux_base = DAVINCI_SYSTEM_MODULE_BASE,
.pinmux_pins = dm646x_pins,
.pinmux_pins_num = ARRAY_SIZE(dm646x_pins),
.intc_base = DAVINCI_ARM_INTC_BASE,
.intc_type = DAVINCI_INTC_TYPE_AINTC,
.intc_irq_prios = dm646x_default_priorities,
.intc_irq_num = DAVINCI_N_AINTC_IRQ,
.timer_info = &dm646x_timer_info,
.emac_pdata = &dm646x_emac_pdata,
.sram_dma = 0x10010000,
.sram_len = SZ_32K,
};
void __init dm646x_init_mcasp0(struct snd_platform_data *pdata)
{
dm646x_mcasp0_device.dev.platform_data = pdata;
platform_device_register(&dm646x_mcasp0_device);
}
void __init dm646x_init_mcasp1(struct snd_platform_data *pdata)
{
dm646x_mcasp1_device.dev.platform_data = pdata;
platform_device_register(&dm646x_mcasp1_device);
platform_device_register(&dm646x_dit_device);
}
void dm646x_setup_vpif(struct vpif_display_config *display_config,
struct vpif_capture_config *capture_config)
{
unsigned int value;
value = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS));
value &= ~VSCLKDIS_MASK;
__raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS));
value = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VDD3P3VPWDN));
value &= ~VDD3P3V_VID_MASK;
__raw_writel(value, DAVINCI_SYSMOD_VIRT(SYSMOD_VDD3P3VPWDN));
davinci_cfg_reg(DM646X_STSOMUX_DISABLE);
davinci_cfg_reg(DM646X_STSIMUX_DISABLE);
davinci_cfg_reg(DM646X_PTSOMUX_DISABLE);
davinci_cfg_reg(DM646X_PTSIMUX_DISABLE);
vpif_display_dev.dev.platform_data = display_config;
vpif_capture_dev.dev.platform_data = capture_config;
platform_device_register(&vpif_dev);
platform_device_register(&vpif_display_dev);
platform_device_register(&vpif_capture_dev);
}
int __init dm646x_init_edma(struct edma_rsv_info *rsv)
{
struct platform_device *edma_pdev;
dm646x_edma_pdata.rsv = rsv;
edma_pdev = platform_device_register_full(&dm646x_edma_device);
return PTR_ERR_OR_ZERO(edma_pdev);
}
void __init dm646x_init(void)
{
davinci_common_init(&davinci_soc_info_dm646x);
davinci_map_sysmod();
}
void __init dm646x_init_time(unsigned long ref_clk_rate,
unsigned long aux_clkin_rate)
{
void __iomem *pll1, *psc;
struct clk *clk;
clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, ref_clk_rate);
clk_register_fixed_rate(NULL, "aux_clkin", NULL, 0, aux_clkin_rate);
pll1 = ioremap(DAVINCI_PLL1_BASE, SZ_1K);
dm646x_pll1_init(NULL, pll1, NULL);
psc = ioremap(DAVINCI_PWR_SLEEP_CNTRL_BASE, SZ_4K);
dm646x_psc_init(NULL, psc);
clk = clk_get(NULL, "timer0");
davinci_timer_init(clk);
}
static struct resource dm646x_pll2_resources[] = {
{
.start = DAVINCI_PLL2_BASE,
.end = DAVINCI_PLL2_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device dm646x_pll2_device = {
.name = "dm646x-pll2",
.id = -1,
.resource = dm646x_pll2_resources,
.num_resources = ARRAY_SIZE(dm646x_pll2_resources),
};
void __init dm646x_register_clocks(void)
{
/* PLL1 and PSC are registered in dm646x_init_time() */
platform_device_register(&dm646x_pll2_device);
}
static int __init dm646x_init_devices(void)
{
int ret = 0;
if (!cpu_is_davinci_dm646x())
return 0;
platform_device_register(&dm646x_mdio_device);
platform_device_register(&dm646x_emac_device);
ret = davinci_init_wdt();
if (ret)
pr_warn("%s: watchdog init failed: %d\n", __func__, ret);
return ret;
}
postcore_initcall(dm646x_init_devices);
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