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Commit 56881d28 authored by Sriram's avatar Sriram Committed by Tony Lindgren
Browse files

AM35xx: Platform specific hookup for EMAC module 



Modified AM35xx EVM init sequence to handle EMAC
initialization.

Signed-off-by: default avatarSriramakrishnan <srk@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 39e799df

arch/arm/mach-omap2/board-am3517evm.c

+98 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <linux/gpio.h>

#include <linux/i2c/pca953x.h>

#include <linux/can/platform/ti_hecc.h>

#include <linux/davinci_emac.h>



#include <mach/hardware.h>

#include <mach/am35xx.h>
@@ -31,11 +32,106 @@ 


#include <plat/board.h>

#include <plat/common.h>

#include <plat/control.h>

#include <plat/usb.h>

#include <plat/display.h>



#include "mux.h"



#define AM35XX_EVM_PHY_MASK		(0xF)

#define AM35XX_EVM_MDIO_FREQUENCY	(1000000)



static struct emac_platform_data am3517_evm_emac_pdata = {

	.phy_mask	= AM35XX_EVM_PHY_MASK,

	.mdio_max_freq	= AM35XX_EVM_MDIO_FREQUENCY,

	.rmii_en	= 1,

};



static struct resource am3517_emac_resources[] = {

	{

		.start  = AM35XX_IPSS_EMAC_BASE,

		.end    = AM35XX_IPSS_EMAC_BASE + 0x3FFFF,

		.flags  = IORESOURCE_MEM,

	},

	{

		.start  = INT_35XX_EMAC_C0_RXTHRESH_IRQ,

		.end    = INT_35XX_EMAC_C0_RXTHRESH_IRQ,

		.flags  = IORESOURCE_IRQ,

	},

	{

		.start  = INT_35XX_EMAC_C0_RX_PULSE_IRQ,

		.end    = INT_35XX_EMAC_C0_RX_PULSE_IRQ,

		.flags  = IORESOURCE_IRQ,

	},

	{

		.start  = INT_35XX_EMAC_C0_TX_PULSE_IRQ,

		.end    = INT_35XX_EMAC_C0_TX_PULSE_IRQ,

		.flags  = IORESOURCE_IRQ,

	},

	{

		.start  = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,

		.end    = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,

		.flags  = IORESOURCE_IRQ,

	},

};



static struct platform_device am3517_emac_device = {

	.name		= "davinci_emac",

	.id		= -1,

	.num_resources	= ARRAY_SIZE(am3517_emac_resources),

	.resource	= am3517_emac_resources,

};



static void am3517_enable_ethernet_int(void)

{

	u32 regval;



	regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);

	regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |

		AM35XX_CPGMAC_C0_TX_PULSE_CLR |

		AM35XX_CPGMAC_C0_MISC_PULSE_CLR |

		AM35XX_CPGMAC_C0_RX_THRESH_CLR);

	omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);

	regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);

}



static void am3517_disable_ethernet_int(void)

{

	u32 regval;



	regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);

	regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |

		AM35XX_CPGMAC_C0_TX_PULSE_CLR);

	omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);

	regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);

}



void am3517_evm_ethernet_init(struct emac_platform_data *pdata)

{

	unsigned int regval;



	pdata->ctrl_reg_offset		= AM35XX_EMAC_CNTRL_OFFSET;

	pdata->ctrl_mod_reg_offset	= AM35XX_EMAC_CNTRL_MOD_OFFSET;

	pdata->ctrl_ram_offset		= AM35XX_EMAC_CNTRL_RAM_OFFSET;

	pdata->mdio_reg_offset		= AM35XX_EMAC_MDIO_OFFSET;

	pdata->ctrl_ram_size		= AM35XX_EMAC_CNTRL_RAM_SIZE;

	pdata->version			= EMAC_VERSION_2;

	pdata->hw_ram_addr		= AM35XX_EMAC_HW_RAM_ADDR;

	pdata->interrupt_enable		= am3517_enable_ethernet_int;

	pdata->interrupt_disable	= am3517_disable_ethernet_int;

	am3517_emac_device.dev.platform_data	= pdata;

	platform_device_register(&am3517_emac_device);



	regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);

	regval = regval & (~(AM35XX_CPGMACSS_SW_RST));

	omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);

	regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);



	return ;

}







#define LCD_PANEL_PWR		176

#define LCD_PANEL_BKLIGHT_PWR	182

#define LCD_PANEL_PWM		181
@@ -351,6 +447,8 @@ static void __init am3517_evm_init(void) 


	i2c_register_board_info(1, am3517evm_i2c_boardinfo,

				ARRAY_SIZE(am3517evm_i2c_boardinfo));

	/*Ethernet*/

	am3517_evm_ethernet_init(&am3517_evm_emac_pdata);

}



static void __init am3517_evm_map_io(void)