Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754805Ab0HKQqY (ORCPT ); Wed, 11 Aug 2010 12:46:24 -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 S1754612Ab0HKQqX (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 2/4] Low-level initialization for hsmmc controller on LogicPD's OMAP3 SOM and TORPEDO dev kits Date: Wed, 11 Aug 2010 12:31:35 -0400 Message-Id: <1281544297-18015-2-git-send-email-Jacob.Tanenbaum@logicpd.com> X-Mailer: git-send-email 1.6.0.4 In-Reply-To: <1281544297-18015-1-git-send-email-Jacob.Tanenbaum@logicpd.com> References: <1281544297-18015-1-git-send-email-Jacob.Tanenbaum@logicpd.com> X-OriginalArrivalTime: 11 Aug 2010 16:32:11.0699 (UTC) FILETIME=[BFCAE030:01CB3972] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4248 Lines: 138 ARM: OMAP3LOGIC: Adding SDMMC support Add low-level initialization for hsmmc controller 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 | 73 +++++++++++++++++++++++++++++-- 1 files changed, 68 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-omap2/board-omap3logic.c b/arch/arm/mach-omap2/board-omap3logic.c index b449f9e..3358418 100644 --- a/arch/arm/mach-omap2/board-omap3logic.c +++ b/arch/arm/mach-omap2/board-omap3logic.c @@ -33,6 +33,7 @@ #include #include "mux.h" +#include "hsmmc.h" #include #include @@ -41,6 +42,11 @@ #include #include +#define OMAP3530_LV_SOM_MMC_GPIO_CD 110 +#define OMAP3530_LV_SOM_MMC_GPIO_WP 126 +#define OMAP3_TORPEDO_MMC_GPIO_CD 127 +#define OMAP3_TORPEDO_MMC_GPIO_WP (-EINVAL) + /* Micron MT46H32M32LF-6 */ /* FIXME: borrowed from sdram-micron-mt46h32m32lf-6.h because on LogicPD * boards we can't use the default values -- why? I suspect the reason @@ -81,6 +87,28 @@ static struct omap_sdrc_params mt46h32m32lf6_sdrc_params[] = { }, }; +static struct regulator_consumer_supply omap3logic_vmmc1_supply = { + .supply = "vmmc", +}; + +/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */ +static struct regulator_init_data omap3logic_vmmc1 = { + .constraints = { + .name = "VMMC1", + .min_uV = 1850000, + .max_uV = 3150000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE + | REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &omap3logic_vmmc1_supply, +}; + + + static int omap3logic_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio) { @@ -104,6 +132,7 @@ static struct twl4030_platform_data omap3logic_twldata = { /* platform_data for children goes here */ .gpio = &omap3logic_gpio_data, + .vmmc1 = &omap3logic_vmmc1, }; static struct i2c_board_info __initdata omap3logic_i2c_boardinfo[] = { @@ -125,6 +154,44 @@ static int __init omap3logic_i2c_init(void) static struct omap_board_config_kernel omap3logic_config[] __initdata = { }; +static struct omap2_hsmmc_info __initdata board_mmc_info[] = { + { + .name = "external", + .mmc = 1, + .wires = 4, + .gpio_cd = -EINVAL, + .gpio_wp = -EINVAL, + }, + {} /* Terminator */ +}; + +static void __init board_mmc_init(void) +{ + /* OMAP3530 LV SOM board */ + if (machine_is_omap3530_lv_som()) { + board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD; + board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP; + omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT); + omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT); + + + /* OMAP3 Torpedo board */ + } else if (machine_is_omap3_torpedo()) { + board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD; + omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT); + /* unsupported board */ + } else { + printk(KERN_ERR "%s(): unknown machine type\n", __func__); + return; + } + + omap2_hsmmc_init(board_mmc_info); + /* link regulators to MMC adapters */ + omap3logic_vmmc1_supply.dev = board_mmc_info[0].dev; +} + + + static void __init omap3logic_init_irq(void) { omap_board_config = omap3logic_config; @@ -144,12 +211,8 @@ static void __init omap3logic_init(void) { omap3logic_i2c_init(); omap_serial_init(); - + board_mmc_init(); /* Ensure SDRC pins are mux'd for self-refresh */ -/* omap_cfg_reg(H16_34XX_SDRC_CKE0); - omap_cfg_reg(H17_34XX_SDRC_CKE1); - omap_cfg_reg(SDRC_CKE0); - omap_cfg_reg(SDRC_CKE1); */ 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/