Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755061Ab0HKQrD (ORCPT ); Wed, 11 Aug 2010 12:47:03 -0400 Received: from mail.logicpd.com ([66.162.60.3]:43783 "EHLO smtp.logicpd.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753463Ab0HKQqX (ORCPT ); Wed, 11 Aug 2010 12:46:23 -0400 X-Greylist: delayed 850 seconds by postgrey-1.27 at vger.kernel.org; Wed, 11 Aug 2010 12:46:22 EDT From: Jacob Tanenbaum To: linux@arm.linux.org.uk Cc: linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, rmk@arm.linux.org.uk, tony@atomide.com, Jacob Tanenbaum Subject: [PATCH 4/4] enabling Ethernet support for LogicPD's OMAP3 TORPEDO and SOM dev kits Date: Wed, 11 Aug 2010 12:31:37 -0400 Message-Id: <1281544297-18015-4-git-send-email-Jacob.Tanenbaum@logicpd.com> X-Mailer: git-send-email 1.6.0.4 In-Reply-To: <1281544297-18015-3-git-send-email-Jacob.Tanenbaum@logicpd.com> References: <1281544297-18015-1-git-send-email-Jacob.Tanenbaum@logicpd.com> <1281544297-18015-2-git-send-email-Jacob.Tanenbaum@logicpd.com> <1281544297-18015-3-git-send-email-Jacob.Tanenbaum@logicpd.com> X-OriginalArrivalTime: 11 Aug 2010 16:32:13.0105 (UTC) FILETIME=[C0A16A10:01CB3972] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4626 Lines: 148 Enable SMSC911x Ethernet driver for LogicPD's OMAP 3530 LV SOM and OMAP 35x Torpedo board. Tested against: linux-next 81e09f50c93edff607259cbe374a3006c9c5fa74 Signed-off-by: Jacob Tanenbaum --- arch/arm/mach-omap2/board-omap3logic.c | 90 +++++++++++++++++++++++++++++++- 1 files changed, 89 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-omap2/board-omap3logic.c b/arch/arm/mach-omap2/board-omap3logic.c index 3358418..694bc27 100644 --- a/arch/arm/mach-omap2/board-omap3logic.c +++ b/arch/arm/mach-omap2/board-omap3logic.c @@ -38,14 +38,21 @@ #include #include #include +#include #include #include #include +#include + +#define OMAP3LOGIC_SMSC911X_CS 1 #define OMAP3530_LV_SOM_MMC_GPIO_CD 110 #define OMAP3530_LV_SOM_MMC_GPIO_WP 126 +#define OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ 152 + #define OMAP3_TORPEDO_MMC_GPIO_CD 127 #define OMAP3_TORPEDO_MMC_GPIO_WP (-EINVAL) +#define OMAP3_TORPEDO_SMSC911X_GPIO_IRQ 129 /* Micron MT46H32M32LF-6 */ /* FIXME: borrowed from sdram-micron-mt46h32m32lf-6.h because on LogicPD @@ -190,6 +197,78 @@ static void __init board_mmc_init(void) omap3logic_vmmc1_supply.dev = board_mmc_info[0].dev; } +static struct omap_smsc911x_platform_data __initdata board_smsc911x_data = { + .cs = OMAP3LOGIC_SMSC911X_CS, + .gpio_irq = -EINVAL, + .gpio_reset = -EINVAL, + .flags = IORESOURCE_IRQ_LOWLEVEL, +}; + +/* TODO/FIXME (comment by Peter Barada, LogicPD): + * Fix the PBIAS voltage for Torpedo MMC1 pins that + * are used for other needs (IRQs, etc). +static inline void __init omap3_torpedo_fix_pbias_voltage(void) */ +static void omap3torpedo_fix_pbias_voltage(void) +{ + u16 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE; + static int pbias_fixed = -1; + u32 reg; + + if (!pbias_fixed) { + /* Set the bias for the pin */ + reg = omap_ctrl_readl(control_pbias_offset); + + reg &= ~OMAP343X_PBIASLITEPWRDNZ1; + omap_ctrl_writel(reg, control_pbias_offset); + + /* 100ms delay required for PBIAS configuration */ + msleep(100); + + reg |= OMAP343X_PBIASLITEVMODE1; + reg |= OMAP343X_PBIASLITEPWRDNZ1; + omap_ctrl_writel(reg | 0x300, control_pbias_offset); + + pbias_fixed = 1; + } +} + +static inline void __init board_smsc911x_init(void) +{ + /* OMAP3530 LV SOM board */ + if (machine_is_omap3530_lv_som()) { + board_smsc911x_data.gpio_irq = + OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ; + /* board_smsc911x_data.gpio_reset + driven by SYS_nRESWARM, no GPIO */ + /* omap_cfg_reg(AE1_34XX_GPIO152_UP); */ + omap_mux_init_signal("gpio_152", OMAP_PIN_INPUT); + +/* omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);*/ + + /* OMAP3 Torpedo board */ + } else if (machine_is_omap3_torpedo()) { + board_smsc911x_data.gpio_irq = OMAP3_TORPEDO_SMSC911X_GPIO_IRQ; + /* board_smsc911x_data.gpio_reset driven + by SYS_nRESWARM, no GPIO */ + /*omap_cfg_reg(AE1_34XX_GPIO152_UP);*/ + omap_mux_init_signal("gpio_129", OMAP_PIN_INPUT); + /* TODO/FIXME (comment by Peter Barada, LogicPD): + * On Torpedo, LAN9221 IRQ is an MMC1_DATA7 pin + * and IRQ1760 IRQ is MMC1_DATA4 pin - need + * to update PBIAS to get voltage to the device + * so the IRQs works correctly rather than float + * and cause an IRQ storm... + */ + omap3torpedo_fix_pbias_voltage(); + /* unsupported board */ + } else { + printk(KERN_ERR "%s(): unknown machine type\n", __func__); + return; + } + gpmc_smsc911x_init(&board_smsc911x_data); +} + + static void __init omap3logic_init_irq(void) @@ -204,14 +283,23 @@ static void __init omap3logic_init_irq(void) #endif omap_gpio_init(); } - +#ifdef CONFIG_OMAP_MUX +static struct omap_board_mux board_mux[] __initdata = { + { .reg_offset = OMAP_MUX_TERMINATOR }, +}; +#else +#define board_mux NULL +#endif static void __init omap3logic_init(void) { + omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); omap3logic_i2c_init(); omap_serial_init(); board_mmc_init(); + board_smsc911x_init(); + /* Ensure SDRC pins are mux'd for self-refresh */ omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT); omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT); -- 1.6.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/