Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755927AbZDNJnE (ORCPT ); Tue, 14 Apr 2009 05:43:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754056AbZDNJjt (ORCPT ); Tue, 14 Apr 2009 05:39:49 -0400 Received: from mx1.emlix.com ([193.175.82.87]:42739 "EHLO mx1.emlix.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753231AbZDNJjm (ORCPT ); Tue, 14 Apr 2009 05:39:42 -0400 From: Johannes Weiner To: Andrew Morton Cc: Chris Zankel , linux-kernel@vger.kernel.org, Oskar Schirmer , =?utf-8?q?Daniel=20Gl=C3=B6ckner?= Subject: [patch 11/12] xtensa: s6105 specific configuration for s6gmac Date: Tue, 14 Apr 2009 11:41:19 +0200 Message-Id: <1239702080-14355-12-git-send-email-jw@emlix.com> In-Reply-To: <1239702080-14355-1-git-send-email-jw@emlix.com> References: <1239702080-14355-1-git-send-email-jw@emlix.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Organization: emlix gmbh, Goettingen, Germany Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4970 Lines: 185 From: Oskar Schirmer Platform-specific configuration for the s6gmac driver, including the PHY interrupt line. Signed-off-by: Daniel Glöckner Signed-off-by: Oskar Schirmer --- arch/xtensa/platforms/s6105/device.c | 91 ++++++++++++++++++++++++++++++++++ arch/xtensa/platforms/s6105/setup.c | 9 +++ 2 files changed, 100 insertions(+), 0 deletions(-) diff --git a/arch/xtensa/platforms/s6105/device.c b/arch/xtensa/platforms/s6105/device.c index 78b08be..963634a 100644 --- a/arch/xtensa/platforms/s6105/device.c +++ b/arch/xtensa/platforms/s6105/device.c @@ -5,14 +5,27 @@ */ #include +#include #include +#include +#include #include #include #include #include +#include +#include + +#define GPIO3_INTNUM 3 #define UART_INTNUM 4 +#define GMAC_INTNUM 5 + +static const signed char gpio3_irq_mappings[] = { + S6_INTC_GPIO(3), + -1 +}; static const signed char uart_irq_mappings[] = { S6_INTC_UART(0), @@ -20,8 +33,18 @@ static const signed char uart_irq_mappings[] = { -1, }; +static const signed char gmac_irq_mappings[] = { + S6_INTC_GMAC_STAT, + S6_INTC_GMAC_ERR, + S6_INTC_DMA_HOSTTERMCNT(0), + S6_INTC_DMA_HOSTTERMCNT(1), + -1 +}; + const signed char *platform_irq_mappings[NR_IRQS] = { + [GPIO3_INTNUM] = gpio3_irq_mappings, [UART_INTNUM] = uart_irq_mappings, + [GMAC_INTNUM] = gmac_irq_mappings, }; static struct plat_serial8250_port serial_platform_data[] = { @@ -46,6 +69,66 @@ static struct plat_serial8250_port serial_platform_data[] = { { }, }; +static struct resource s6_gmac_resource[] = { + { + .name = "mem", + .start = (resource_size_t)S6_REG_GMAC, + .end = (resource_size_t)S6_REG_GMAC + 0x10000 - 1, + .flags = IORESOURCE_MEM, + }, + { + .name = "dma", + .start = (resource_size_t) + DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACTX), + .end = (resource_size_t) + DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACTX) + 0x100 - 1, + .flags = IORESOURCE_DMA, + }, + { + .name = "dma", + .start = (resource_size_t) + DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACRX), + .end = (resource_size_t) + DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACRX) + 0x100 - 1, + .flags = IORESOURCE_DMA, + }, + { + .name = "io", + .start = (resource_size_t)S6_MEM_GMAC, + .end = (resource_size_t)S6_MEM_GMAC + 0x2000000 - 1, + .flags = IORESOURCE_IO, + }, + { + .name = "irq", + .start = (resource_size_t)GMAC_INTNUM, + .flags = IORESOURCE_IRQ, + }, + { + .name = "irq", + .start = (resource_size_t)PHY_POLL, + .flags = IORESOURCE_IRQ, + }, +}; + +static int __init prepare_phy_irq(int pin) +{ + int irq; + if (gpio_request(pin, "s6gmac_phy") < 0) + goto fail; + if (gpio_direction_input(pin) < 0) + goto free; + irq = gpio_to_irq(pin); + if (irq < 0) + goto free; + if (set_irq_type(irq, IRQ_TYPE_LEVEL_LOW) < 0) + goto free; + return irq; +free: + gpio_free(pin); +fail: + return PHY_POLL; +} + static struct platform_device platform_devices[] = { { .name = "serial8250", @@ -54,12 +137,20 @@ static struct platform_device platform_devices[] = { .platform_data = serial_platform_data, }, }, + { + .name = "s6gmac", + .id = 0, + .resource = s6_gmac_resource, + .num_resources = ARRAY_SIZE(s6_gmac_resource), + }, }; static int __init device_init(void) { int i; + s6_gmac_resource[5].start = prepare_phy_irq(GPIO_PHY_IRQ); + for (i = 0; i < ARRAY_SIZE(platform_devices); i++) platform_device_register(&platform_devices[i]); return 0; diff --git a/arch/xtensa/platforms/s6105/setup.c b/arch/xtensa/platforms/s6105/setup.c index 95fa23c..86ce730 100644 --- a/arch/xtensa/platforms/s6105/setup.c +++ b/arch/xtensa/platforms/s6105/setup.c @@ -35,12 +35,21 @@ void __init platform_setup(char **cmdline) { unsigned long reg; + reg = readl(S6_REG_GREG1 + S6_GREG1_PLLSEL); + reg &= ~(S6_GREG1_PLLSEL_GMAC_MASK << S6_GREG1_PLLSEL_GMAC | + S6_GREG1_PLLSEL_GMII_MASK << S6_GREG1_PLLSEL_GMII); + reg |= S6_GREG1_PLLSEL_GMAC_125MHZ << S6_GREG1_PLLSEL_GMAC | + S6_GREG1_PLLSEL_GMII_125MHZ << S6_GREG1_PLLSEL_GMII; + writel(reg, S6_REG_GREG1 + S6_GREG1_PLLSEL); + reg = readl(S6_REG_GREG1 + S6_GREG1_CLKGATE); reg &= ~(1 << S6_GREG1_BLOCK_SB); + reg &= ~(1 << S6_GREG1_BLOCK_GMAC); writel(reg, S6_REG_GREG1 + S6_GREG1_CLKGATE); reg = readl(S6_REG_GREG1 + S6_GREG1_BLOCKENA); reg |= 1 << S6_GREG1_BLOCK_SB; + reg |= 1 << S6_GREG1_BLOCK_GMAC; writel(reg, S6_REG_GREG1 + S6_GREG1_BLOCKENA); printk(KERN_NOTICE "S6105 on Stretch S6000 - " -- 1.6.2.107.ge47ee -- 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/