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author | Igor Grinberg <grinberg@compulab.co.il> | 2014-11-03 11:32:21 +0200 |
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committer | Tom Rini <trini@ti.com> | 2014-11-06 11:04:40 -0500 |
commit | 9886c3d7a803f639b975f63397cc24a3307fa7b6 (patch) | |
tree | 93e40e7616019c92dcf116e11fffbb19723d7e59 /board/compulab/common/omap3_smc911x.c | |
parent | f4a40f05f504407a036e2beee88ce17930d5d45c (diff) | |
download | u-boot-imx-9886c3d7a803f639b975f63397cc24a3307fa7b6.zip u-boot-imx-9886c3d7a803f639b975f63397cc24a3307fa7b6.tar.gz u-boot-imx-9886c3d7a803f639b975f63397cc24a3307fa7b6.tar.bz2 |
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>
Diffstat (limited to 'board/compulab/common/omap3_smc911x.c')
-rw-r--r-- | board/compulab/common/omap3_smc911x.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/board/compulab/common/omap3_smc911x.c b/board/compulab/common/omap3_smc911x.c new file mode 100644 index 0000000..4561661 --- /dev/null +++ b/board/compulab/common/omap3_smc911x.c @@ -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; +} |