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> |
Anton Vorontsov | 23f5cac | 2010-03-25 23:10:58 +0300 | [diff] [blame] | 17 | #include <linux/dma-mapping.h> |
Anton Vorontsov | 6279d0e | 2010-05-28 13:14:44 +0400 | [diff] [blame] | 18 | #include <linux/platform_device.h> |
| 19 | #include <mach/cns3xxx.h> |
| 20 | #include <mach/irqs.h> |
Mac Lin | 38e64ba | 2010-11-23 00:32:43 +0800 | [diff] [blame] | 21 | #include <mach/pm.h> |
Anton Vorontsov | 6279d0e | 2010-05-28 13:14:44 +0400 | [diff] [blame] | 22 | #include "core.h" |
| 23 | #include "devices.h" |
| 24 | |
| 25 | /* |
Anton Vorontsov | 23f5cac | 2010-03-25 23:10:58 +0300 | [diff] [blame] | 26 | * AHCI |
| 27 | */ |
| 28 | static struct resource cns3xxx_ahci_resource[] = { |
| 29 | [0] = { |
| 30 | .start = CNS3XXX_SATA2_BASE, |
| 31 | .end = CNS3XXX_SATA2_BASE + CNS3XXX_SATA2_SIZE - 1, |
| 32 | .flags = IORESOURCE_MEM, |
| 33 | }, |
| 34 | [1] = { |
| 35 | .start = IRQ_CNS3XXX_SATA, |
| 36 | .end = IRQ_CNS3XXX_SATA, |
| 37 | .flags = IORESOURCE_IRQ, |
| 38 | }, |
| 39 | }; |
| 40 | |
| 41 | static u64 cns3xxx_ahci_dmamask = DMA_BIT_MASK(32); |
| 42 | |
| 43 | static struct platform_device cns3xxx_ahci_pdev = { |
| 44 | .name = "ahci", |
| 45 | .id = 0, |
| 46 | .resource = cns3xxx_ahci_resource, |
| 47 | .num_resources = ARRAY_SIZE(cns3xxx_ahci_resource), |
| 48 | .dev = { |
| 49 | .dma_mask = &cns3xxx_ahci_dmamask, |
| 50 | .coherent_dma_mask = DMA_BIT_MASK(32), |
| 51 | }, |
| 52 | }; |
| 53 | |
| 54 | void __init cns3xxx_ahci_init(void) |
| 55 | { |
| 56 | u32 tmp; |
| 57 | |
| 58 | tmp = __raw_readl(MISC_SATA_POWER_MODE); |
| 59 | tmp |= 0x1 << 16; /* Disable SATA PHY 0 from SLUMBER Mode */ |
| 60 | tmp |= 0x1 << 17; /* Disable SATA PHY 1 from SLUMBER Mode */ |
| 61 | __raw_writel(tmp, MISC_SATA_POWER_MODE); |
| 62 | |
| 63 | /* Enable SATA PHY */ |
| 64 | cns3xxx_pwr_power_up(0x1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_SATA_PHY0); |
| 65 | cns3xxx_pwr_power_up(0x1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_SATA_PHY1); |
| 66 | |
| 67 | /* Enable SATA Clock */ |
| 68 | cns3xxx_pwr_clk_en(0x1 << PM_CLK_GATE_REG_OFFSET_SATA); |
| 69 | |
| 70 | /* De-Asscer SATA Reset */ |
| 71 | cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SATA)); |
| 72 | |
| 73 | platform_device_register(&cns3xxx_ahci_pdev); |
| 74 | } |
| 75 | |
| 76 | /* |
Anton Vorontsov | 6279d0e | 2010-05-28 13:14:44 +0400 | [diff] [blame] | 77 | * SDHCI |
| 78 | */ |
| 79 | static struct resource cns3xxx_sdhci_resources[] = { |
| 80 | [0] = { |
| 81 | .start = CNS3XXX_SDIO_BASE, |
| 82 | .end = CNS3XXX_SDIO_BASE + SZ_4K - 1, |
| 83 | .flags = IORESOURCE_MEM, |
| 84 | }, |
| 85 | [1] = { |
| 86 | .start = IRQ_CNS3XXX_SDIO, |
| 87 | .end = IRQ_CNS3XXX_SDIO, |
| 88 | .flags = IORESOURCE_IRQ, |
| 89 | }, |
| 90 | }; |
| 91 | |
| 92 | static struct platform_device cns3xxx_sdhci_pdev = { |
| 93 | .name = "sdhci-cns3xxx", |
| 94 | .id = 0, |
| 95 | .num_resources = ARRAY_SIZE(cns3xxx_sdhci_resources), |
| 96 | .resource = cns3xxx_sdhci_resources, |
| 97 | }; |
| 98 | |
| 99 | void __init cns3xxx_sdhci_init(void) |
| 100 | { |
Rob Herring | a2a47ca | 2012-03-09 17:16:40 -0600 | [diff] [blame^] | 101 | u32 __iomem *gpioa = IOMEM(CNS3XXX_MISC_BASE_VIRT + 0x0014); |
Anton Vorontsov | 6279d0e | 2010-05-28 13:14:44 +0400 | [diff] [blame] | 102 | u32 gpioa_pins = __raw_readl(gpioa); |
| 103 | |
| 104 | /* MMC/SD pins share with GPIOA */ |
| 105 | gpioa_pins |= 0x1fff0004; |
| 106 | __raw_writel(gpioa_pins, gpioa); |
| 107 | |
| 108 | cns3xxx_pwr_clk_en(CNS3XXX_PWR_CLK_EN(SDIO)); |
| 109 | cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SDIO)); |
| 110 | |
| 111 | platform_device_register(&cns3xxx_sdhci_pdev); |
| 112 | } |