Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932103AbaFKJFA (ORCPT ); Wed, 11 Jun 2014 05:05:00 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:59826 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755747AbaFKI6w (ORCPT ); Wed, 11 Jun 2014 04:58:52 -0400 From: Roger Quadros To: , , CC: , , , , , , , , , Roger Quadros Subject: [PATCH 26/36] ARM: OMAP2+: gpmc-smc91x: Get rid of retime() from omap_smc91x_platform_data Date: Wed, 11 Jun 2014 11:56:31 +0300 Message-ID: <1402477001-31132-27-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1402477001-31132-1-git-send-email-rogerq@ti.com> References: <1402477001-31132-1-git-send-email-rogerq@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The retime() function is not provided by board files so get rid of it from omap_smc91x_platform_data(). Instead change it to smc91c96_get_device_timing() to get the device timings. Signed-off-by: Roger Quadros --- arch/arm/mach-omap2/board-3430sdp.c | 8 ++++-- arch/arm/mach-omap2/gpmc-smc91x.c | 55 ++++++++++++++----------------------- arch/arm/mach-omap2/gpmc-smc91x.h | 1 - 3 files changed, 27 insertions(+), 37 deletions(-) diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c index d95d0ef..b781090 100644 --- a/arch/arm/mach-omap2/board-3430sdp.c +++ b/arch/arm/mach-omap2/board-3430sdp.c @@ -411,8 +411,12 @@ static int __init omap3430_i2c_init(void) static struct omap_smc91x_platform_data board_smc91x_data = { .cs = 3, - .flags = GPMC_MUX_ADD_DATA | GPMC_TIMINGS_SMC91C96 | - IORESOURCE_IRQ_LOWLEVEL, + /* + * Don't use GPMC_TIMINGS_SMC91C96 flag here as generic + * timing doesn't seem to have worked. + * Leave bootloader timing intact. + */ + .flags = GPMC_MUX_ADD_DATA | IORESOURCE_IRQ_LOWLEVEL, }; static void __init board_smc91x_init(void) diff --git a/arch/arm/mach-omap2/gpmc-smc91x.c b/arch/arm/mach-omap2/gpmc-smc91x.c index 61a0635..7f5d84a 100644 --- a/arch/arm/mach-omap2/gpmc-smc91x.c +++ b/arch/arm/mach-omap2/gpmc-smc91x.c @@ -59,10 +59,8 @@ static struct gpmc_settings smc91x_settings = { * http://www.smsc.com/main/catalog/lan91c96.html * REVISIT: Level shifters can add at least to the access latency. */ -static int smc91c96_gpmc_retime(void) +static void smc91c96_get_device_timing(struct gpmc_device_timings *dev_t) { - struct gpmc_timings t; - struct gpmc_device_timings dev_t; const int t3 = 10; /* Figure 12.2 read and 12.4 write */ const int t4_r = 20; /* Figure 12.2 read */ const int t4_w = 5; /* Figure 12.4 write */ @@ -72,33 +70,19 @@ static int smc91c96_gpmc_retime(void) const int t8 = 5; /* Figure 12.4 write */ const int t20 = 185; /* Figure 12.2 read and 12.4 write */ - /* - * FIXME: Calculate the address and data bus muxed timings. - * Note that at least adv_rd_off needs to be changed according - * to omap3430 TRM Figure 11-11. Are the sdp boards using the - * FPGA in between smc91x and omap as the timings are different - * from above? - */ - if (gpmc_cfg->flags & GPMC_MUX_ADD_DATA) - return 0; - - memset(&dev_t, 0, sizeof(dev_t)); - - dev_t.t_oeasu = t3 * 1000; - dev_t.t_oe = t5 * 1000; - dev_t.t_cez_r = t4_r * 1000; - dev_t.t_oez = t6 * 1000; - dev_t.t_rd_cycle = (t20 - t3) * 1000; + memset(dev_t, 0, sizeof(*dev_t)); - dev_t.t_weasu = t3 * 1000; - dev_t.t_wpl = t7 * 1000; - dev_t.t_wph = t8 * 1000; - dev_t.t_cez_w = t4_w * 1000; - dev_t.t_wr_cycle = (t20 - t3) * 1000; + dev_t->t_oeasu = t3 * 1000; + dev_t->t_oe = t5 * 1000; + dev_t->t_cez_r = t4_r * 1000; + dev_t->t_oez = t6 * 1000; + dev_t->t_rd_cycle = (t20 - t3) * 1000; - gpmc_calc_timings(&t, &smc91x_settings, &dev_t); - - return gpmc_cs_set_timings(gpmc_cfg->cs, &t); + dev_t->t_weasu = t3 * 1000; + dev_t->t_wpl = t7 * 1000; + dev_t->t_wph = t8 * 1000; + dev_t->t_cez_w = t4_w * 1000; + dev_t->t_wr_cycle = (t20 - t3) * 1000; } /* @@ -110,12 +94,10 @@ void __init gpmc_smc91x_init(struct omap_smc91x_platform_data *board_data) { unsigned long cs_mem_base; int ret; + struct gpmc_device_timings dev_t; gpmc_cfg = board_data; - if (gpmc_cfg->flags & GPMC_TIMINGS_SMC91C96) - gpmc_cfg->retime = smc91c96_gpmc_retime; - if (gpmc_cs_request(gpmc_cfg->cs, SZ_16M, &cs_mem_base) < 0) { printk(KERN_ERR "Failed to request GPMC mem for smc91x\n"); return; @@ -137,10 +119,15 @@ void __init gpmc_smc91x_init(struct omap_smc91x_platform_data *board_data) if (ret < 0) goto free1; - if (gpmc_cfg->retime) { - ret = gpmc_cfg->retime(); - if (ret != 0) + if (gpmc_cfg->flags & GPMC_TIMINGS_SMC91C96) { + struct gpmc_timings gpmc_t; + + smc91c96_get_device_timing(&dev_t); + gpmc_calc_timings(&gpmc_t, &smc91x_settings, &dev_t); + if (gpmc_cs_set_timings(gpmc_cfg->cs, &gpmc_t)) { + pr_err("%s: failed to set GPMC timings\n", __func__); goto free1; + } } if (gpio_request_one(gpmc_cfg->gpio_irq, GPIOF_IN, "SMC91X irq") < 0) diff --git a/arch/arm/mach-omap2/gpmc-smc91x.h b/arch/arm/mach-omap2/gpmc-smc91x.h index b64fbee..1da09a0 100644 --- a/arch/arm/mach-omap2/gpmc-smc91x.h +++ b/arch/arm/mach-omap2/gpmc-smc91x.h @@ -22,7 +22,6 @@ struct omap_smc91x_platform_data { int gpio_reset; int wait_pin; /* Optional GPMC_CONFIG1_WAITPINSELECT */ u32 flags; - int (*retime)(void); }; #if defined(CONFIG_SMC91X) || \ -- 1.8.3.2 -- 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/