| Anton Vorontsov | 6279d0e | 2010-05-28 13:14:44 +0400 | [diff] [blame^] | 1 | /* |
| 2 | * CNS3xxx common devices |
| 3 | * |
| 4 | * Copyright 2008 Cavium Networks |
| 5 | * Scott Shu |
| 6 | * Copyright 2010 MontaVista Software, LLC. |
| 7 | * Anton Vorontsov <avorontsov@mvista.com> |
| 8 | * |
| 9 | * This file is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License, Version 2, as |
| 11 | * published by the Free Software Foundation. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/io.h> |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/compiler.h> |
| 17 | #include <linux/platform_device.h> |
| 18 | #include <mach/cns3xxx.h> |
| 19 | #include <mach/irqs.h> |
| 20 | #include "core.h" |
| 21 | #include "devices.h" |
| 22 | |
| 23 | /* |
| 24 | * SDHCI |
| 25 | */ |
| 26 | static struct resource cns3xxx_sdhci_resources[] = { |
| 27 | [0] = { |
| 28 | .start = CNS3XXX_SDIO_BASE, |
| 29 | .end = CNS3XXX_SDIO_BASE + SZ_4K - 1, |
| 30 | .flags = IORESOURCE_MEM, |
| 31 | }, |
| 32 | [1] = { |
| 33 | .start = IRQ_CNS3XXX_SDIO, |
| 34 | .end = IRQ_CNS3XXX_SDIO, |
| 35 | .flags = IORESOURCE_IRQ, |
| 36 | }, |
| 37 | }; |
| 38 | |
| 39 | static struct platform_device cns3xxx_sdhci_pdev = { |
| 40 | .name = "sdhci-cns3xxx", |
| 41 | .id = 0, |
| 42 | .num_resources = ARRAY_SIZE(cns3xxx_sdhci_resources), |
| 43 | .resource = cns3xxx_sdhci_resources, |
| 44 | }; |
| 45 | |
| 46 | void __init cns3xxx_sdhci_init(void) |
| 47 | { |
| 48 | u32 __iomem *gpioa = __io(CNS3XXX_MISC_BASE_VIRT + 0x0014); |
| 49 | u32 gpioa_pins = __raw_readl(gpioa); |
| 50 | |
| 51 | /* MMC/SD pins share with GPIOA */ |
| 52 | gpioa_pins |= 0x1fff0004; |
| 53 | __raw_writel(gpioa_pins, gpioa); |
| 54 | |
| 55 | cns3xxx_pwr_clk_en(CNS3XXX_PWR_CLK_EN(SDIO)); |
| 56 | cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SDIO)); |
| 57 | |
| 58 | platform_device_register(&cns3xxx_sdhci_pdev); |
| 59 | } |