From 9886c3d7a803f639b975f63397cc24a3307fa7b6 Mon Sep 17 00:00:00 2001 From: Igor Grinberg Date: Mon, 3 Nov 2014 11:32:21 +0200 Subject: [PATCH] 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 Reviewed-by: Tom Rini --- board/compulab/cm_t35/cm_t35.c | 50 ++------------ board/compulab/common/Makefile | 1 + board/compulab/common/common.h | 11 ++++ board/compulab/common/omap3_smc911x.c | 93 +++++++++++++++++++++++++++ 4 files changed, 112 insertions(+), 43 deletions(-) create mode 100644 board/compulab/common/omap3_smc911x.c diff --git a/board/compulab/cm_t35/cm_t35.c b/board/compulab/cm_t35/cm_t35.c index a3b38ae2d3..3b963183be 100644 --- a/board/compulab/cm_t35/cm_t35.c +++ b/board/compulab/cm_t35/cm_t35.c @@ -23,6 +23,7 @@ #include #include +#include #include #include #include @@ -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++; diff --git a/board/compulab/common/Makefile b/board/compulab/common/Makefile index 78237d1f12..dbf0009652 100644 --- a/board/compulab/common/Makefile +++ b/board/compulab/common/Makefile @@ -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 diff --git a/board/compulab/common/common.h b/board/compulab/common/common.h index 7a106d6a24..68ffb111dc 100644 --- a/board/compulab/common/common.h +++ b/board/compulab/common/common.h @@ -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_ */ diff --git a/board/compulab/common/omap3_smc911x.c b/board/compulab/common/omap3_smc911x.c new file mode 100644 index 0000000000..4561661987 --- /dev/null +++ b/board/compulab/common/omap3_smc911x.c @@ -0,0 +1,93 @@ +/* + * (C) Copyright 2014 CompuLab, Ltd. + * + * Authors: Igor Grinberg + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include + +#include +#include +#include +#include +#include +#include + +#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; +} -- 2.39.2