Commit 86c35960 authored by Jon Hunter's avatar Jon Hunter Committed by Tony Lindgren
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ARM: OMAP2420: Fix ethernet support for OMAP2420 H4 



Ethernet is not currently working on the OMAP2420 H4 board. In commit
f6049312 (ARM: OMAP: abstract debug card setup (smc, leds)) the function
h4_init_smc91x() that initialised the ethernet controller was renamed to
h4_init_debug() but was never called when initialising the board.

Adding a call to h4_init_debug() fixes ethernet support, however,
instead of using the legacy H4 code migrate the H4 to use the
gpmc_smc91x_init() function instead and remove the legacy H4 code.

Signed-off-by: default avatarJon Hunter <jon-hunter@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 421e8450

arch/arm/mach-omap2/board-h4.c

+20 −63
Original line number Diff line number Diff line
@@ -27,14 +27,12 @@ 
#include <linux/io.h>

#include <linux/input/matrix_keypad.h>

#include <linux/mfd/menelaus.h>

#include <linux/omap-dma.h>



#include <asm/mach-types.h>

#include <asm/mach/arch.h>

#include <asm/mach/map.h>



#include <linux/omap-dma.h>

#include <plat/debug-devices.h>



#include <video/omapdss.h>

#include <video/omap-panel-generic-dpi.h>
@@ -42,11 +40,9 @@ 
#include "mux.h"

#include "control.h"

#include "gpmc.h"

#include "gpmc-smc91x.h"



#define H4_FLASH_CS	0

#define H4_SMC91X_CS	1



#define H4_ETHR_GPIO_IRQ		92



#if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)

static const uint32_t board_matrix_keys[] = {
@@ -250,71 +246,31 @@ static u32 is_gpmc_muxed(void) 
		return 0;

}



static inline void __init h4_init_debug(void)

{

	int eth_cs;

	unsigned long cs_mem_base;

	unsigned int muxed, rate;

	struct clk *gpmc_fck;



	eth_cs	= H4_SMC91X_CS;



	gpmc_fck = clk_get(NULL, "gpmc_fck");	/* Always on ENABLE_ON_INIT */

	if (IS_ERR(gpmc_fck)) {

		WARN_ON(1);

		return;

	}

#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91x_MODULE)



	clk_prepare_enable(gpmc_fck);

	rate = clk_get_rate(gpmc_fck);

	clk_disable_unprepare(gpmc_fck);

	clk_put(gpmc_fck);

static struct omap_smc91x_platform_data board_smc91x_data = {

	.cs		= 1,

	.gpio_irq	= 92,

	.flags		= GPMC_TIMINGS_SMC91C96 | IORESOURCE_IRQ_LOWLEVEL,

};



static void __init board_smc91x_init(void)

{

	if (is_gpmc_muxed())

		muxed = 0x200;

	else

		muxed = 0;



	/* Make sure CS1 timings are correct */

	gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,

			  0x00011000 | muxed);



	if (rate >= 160000000) {

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);

	} else if (rate >= 130000000) {

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);

	} else {/* rate = 100000000 */

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);

		gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);

	}

		board_smc91x_data.flags |= GPMC_MUX_ADD_DATA;



	if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {

		printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");

		goto out;

	omap_mux_init_gpio(board_smc91x_data.gpio_irq, OMAP_PIN_INPUT);

	gpmc_smc91x_init(&board_smc91x_data);

}



	udelay(100);



	omap_mux_init_gpio(92, 0);

	if (debug_card_init(cs_mem_base, H4_ETHR_GPIO_IRQ) < 0)

		gpmc_cs_free(eth_cs);

#else



out:

	clk_disable_unprepare(gpmc_fck);

	clk_put(gpmc_fck);

static inline void board_smc91x_init(void)

{

}



#endif



static void __init h4_init_flash(void)

{

	unsigned long base;
@@ -371,6 +327,7 @@ static void __init omap_h4_init(void) 
	omap_serial_init();

	omap_sdrc_init(NULL, NULL);

	h4_init_flash();

	board_smc91x_init();



	omap_display_init(&h4_dss_data);

}

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