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omap3: cm-t35: move the SMC911x code 

Extract the SMC911x initialization code to a common location where it
can be reused by other compulab omap3 based boards.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Reviewed-by: Tom Rini <trini@ti.com>
This commit is contained in:
Igor Grinberg 2014-11-03 11:32:21 +02:00 committed by Tom Rini
parent f4a40f05f5
commit 9886c3d7a8
4 changed files with 112 additions and 43 deletions
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50
board/compulab/cm_t35/cm_t35.c
View File

@ -23,6 +23,7 @@
#include <linux/compiler.h>
#include <asm/io.h>
#include <asm/errno.h>
#include <asm/arch/mem.h>
#include <asm/arch/mux.h>
#include <asm/arch/mmc_host_def.h>
@ -42,16 +43,6 @@ const omap3_sysinfo sysinfo = {
"NAND",
};
static u32 gpmc_net_config[GPMC_MAX_REG] = {
NET_GPMC_CONFIG1,
NET_GPMC_CONFIG2,
NET_GPMC_CONFIG3,
NET_GPMC_CONFIG4,
NET_GPMC_CONFIG5,
NET_GPMC_CONFIG6,
0
};
#ifdef CONFIG_SPL_BUILD
/*
* Routine: get_board_mem_timings
@ -391,37 +382,12 @@ int board_mmc_init(bd_t *bis)
}
#endif
/*
* Routine: setup_net_chip_gmpc
* Description: Setting up the configuration GPMC registers specific to the
* Ethernet hardware.
*/
static void setup_net_chip_gmpc(void)
{
struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
enable_gpmc_cs_config(gpmc_net_config, &gpmc_cfg->cs[5],
CM_T3X_SMC911X_BASE, GPMC_SIZE_16M);
enable_gpmc_cs_config(gpmc_net_config, &gpmc_cfg->cs[4],
SB_T35_SMC911X_BASE, GPMC_SIZE_16M);
/* Enable off mode for NWE in PADCONF_GPMC_NWE register */
writew(readw(&ctrl_base->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
/* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
/* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
&ctrl_base->gpmc_nadv_ale);
}
#ifdef CONFIG_SYS_I2C_OMAP34XX
/*
* Routine: reset_net_chip
* Description: reset the Ethernet controller via TPS65930 GPIO
*/
static void reset_net_chip(void)
static int cm_t3x_reset_net_chip(int gpio)
{
/* Set GPIO1 of TPS65930 as output */
twl4030_i2c_write_u8(TWL4030_CHIP_GPIO, TWL4030_BASEADD_GPIO + 0x03,
@ -436,9 +402,10 @@ static void reset_net_chip(void)
twl4030_i2c_write_u8(TWL4030_CHIP_GPIO, TWL4030_BASEADD_GPIO + 0x0C,
0x02);
mdelay(1);
return 0;
}
#else
static inline void reset_net_chip(void) {}
static inline int cm_t3x_reset_net_chip(int gpio) { return 0; }
#endif
#ifdef CONFIG_SMC911X
@ -465,7 +432,6 @@ static int handle_mac_address(void)
return eth_setenv_enetaddr("ethaddr", enetaddr);
}
/*
* Routine: board_eth_init
* Description: initialize module and base-board Ethernet chips
@ -474,18 +440,16 @@ int board_eth_init(bd_t *bis)
{
int rc = 0, rc1 = 0;
setup_net_chip_gmpc();
reset_net_chip();
rc1 = handle_mac_address();
if (rc1)
printf("No MAC address found! ");
rc1 = smc911x_initialize(0, CM_T3X_SMC911X_BASE);
rc1 = cl_omap3_smc911x_init(0, 5, CM_T3X_SMC911X_BASE,
cm_t3x_reset_net_chip, -EINVAL);
if (rc1 > 0)
rc++;
rc1 = smc911x_initialize(1, SB_T35_SMC911X_BASE);
rc1 = cl_omap3_smc911x_init(1, 4, SB_T35_SMC911X_BASE, NULL, -EINVAL);
if (rc1 > 0)
rc++;

1
board/compulab/common/Makefile
View File

@ -10,3 +10,4 @@ obj-y += common.o
obj-$(CONFIG_SYS_I2C) += eeprom.o
obj-$(CONFIG_LCD) += omap3_display.o
obj-$(CONFIG_SPLASH_SCREEN) += splash.o
obj-$(CONFIG_SMC911X) += omap3_smc911x.o

11
board/compulab/common/common.h
View File

@ -33,4 +33,15 @@ static inline int cl_splash_screen_prepare(int nand_offset)
}
#endif /* CONFIG_SPLASH_SCREEN */
#ifdef CONFIG_SMC911X
int cl_omap3_smc911x_init(int id, int cs, u32 base_addr,
int (*reset)(int), int rst_gpio);
#else /* !CONFIG_SMC911X */
static inline int cl_omap3_smc911x_init(int id, int cs, u32 base_addr,
int (*reset)(int), int rst_gpio)
{
return -ENOSYS;
}
#endif /* CONFIG_SMC911X */
#endif /* _CL_COMMON_ */

93
board/compulab/common/omap3_smc911x.c Normal file
View File

@ -0,0 +1,93 @@
/*
* (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
*
* Authors: Igor Grinberg <grinberg@compulab.co.il>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <netdev.h>
#include <asm/io.h>
#include <asm/errno.h>
#include <asm/arch/cpu.h>
#include <asm/arch/mem.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include "common.h"
static u32 cl_omap3_smc911x_gpmc_net_config[GPMC_MAX_REG] = {
NET_GPMC_CONFIG1,
NET_GPMC_CONFIG2,
NET_GPMC_CONFIG3,
NET_GPMC_CONFIG4,
NET_GPMC_CONFIG5,
NET_GPMC_CONFIG6,
0
};
static void cl_omap3_smc911x_setup_net_chip_gmpc(int cs, u32 base_addr)
{
struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
enable_gpmc_cs_config(cl_omap3_smc911x_gpmc_net_config,
&gpmc_cfg->cs[cs], base_addr, GPMC_SIZE_16M);
/* Enable off mode for NWE in PADCONF_GPMC_NWE register */
writew(readw(&ctrl_base->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
/* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
/* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
&ctrl_base->gpmc_nadv_ale);
}
#ifdef CONFIG_OMAP_GPIO
static int cl_omap3_smc911x_reset_net_chip(int gpio)
{
int err;
if (!gpio_is_valid(gpio))
return -EINVAL;
err = gpio_request(gpio, "eth rst");
if (err)
return err;
/* Set gpio as output and send a pulse */
gpio_direction_output(gpio, 1);
udelay(1);
gpio_set_value(gpio, 0);
mdelay(40);
gpio_set_value(gpio, 1);
mdelay(1);
return 0;
}
#else /* !CONFIG_OMAP_GPIO */
static inline int cl_omap3_smc911x_reset_net_chip(int gpio) { return 0; }
#endif /* CONFIG_OMAP_GPIO */
int cl_omap3_smc911x_init(int id, int cs, u32 base_addr,
int (*reset)(int), int rst_gpio)
{
int ret;
cl_omap3_smc911x_setup_net_chip_gmpc(cs, base_addr);
if (reset)
reset(rst_gpio);
else
cl_omap3_smc911x_reset_net_chip(rst_gpio);
ret = smc911x_initialize(id, base_addr);
if (ret > 0)
return ret;
printf("Failed initializing SMC911x! ");
return 0;
}