/* linux/arch/arm/mach-exynos4/dma.c * * Copyright (c) 2011 Samsung Electronics Co., Ltd. * http://www.samsung.com * * Copyright (C) 2010 Samsung Electronics Co. Ltd. * Jaswinder Singh <jassi.brar@samsung.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/dma-mapping.h> #include <linux/amba/bus.h> #include <linux/amba/pl330.h> #include <linux/of.h> #include <asm/irq.h> #include <plat/devs.h> #include <plat/irqs.h> #include <plat/cpu.h> #include <mach/map.h> #include <mach/irqs.h> #include <mach/dma.h> static u8 exynos4210_pdma0_peri[] = { DMACH_PCM0_RX, DMACH_PCM0_TX, DMACH_PCM2_RX, DMACH_PCM2_TX, DMACH_MSM_REQ0, DMACH_MSM_REQ2, DMACH_SPI0_RX, DMACH_SPI0_TX, DMACH_SPI2_RX, DMACH_SPI2_TX, DMACH_I2S0S_TX, DMACH_I2S0_RX, DMACH_I2S0_TX, DMACH_I2S2_RX, DMACH_I2S2_TX, DMACH_UART0_RX, DMACH_UART0_TX, DMACH_UART2_RX, DMACH_UART2_TX, DMACH_UART4_RX, DMACH_UART4_TX, DMACH_SLIMBUS0_RX, DMACH_SLIMBUS0_TX, DMACH_SLIMBUS2_RX, DMACH_SLIMBUS2_TX, DMACH_SLIMBUS4_RX, DMACH_SLIMBUS4_TX, DMACH_AC97_MICIN, DMACH_AC97_PCMIN, DMACH_AC97_PCMOUT, }; static u8 exynos4212_pdma0_peri[] = { DMACH_PCM0_RX, DMACH_PCM0_TX, DMACH_PCM2_RX, DMACH_PCM2_TX, DMACH_MIPI_HSI0, DMACH_MIPI_HSI1, DMACH_SPI0_RX, DMACH_SPI0_TX, DMACH_SPI2_RX, DMACH_SPI2_TX, DMACH_I2S0S_TX, DMACH_I2S0_RX, DMACH_I2S0_TX, DMACH_I2S2_RX, DMACH_I2S2_TX, DMACH_UART0_RX, DMACH_UART0_TX, DMACH_UART2_RX, DMACH_UART2_TX, DMACH_UART4_RX, DMACH_UART4_TX, DMACH_SLIMBUS0_RX, DMACH_SLIMBUS0_TX, DMACH_SLIMBUS2_RX, DMACH_SLIMBUS2_TX, DMACH_SLIMBUS4_RX, DMACH_SLIMBUS4_TX, DMACH_AC97_MICIN, DMACH_AC97_PCMIN, DMACH_AC97_PCMOUT, DMACH_MIPI_HSI4, DMACH_MIPI_HSI5, }; struct dma_pl330_platdata exynos4_pdma0_pdata; static AMBA_AHB_DEVICE(exynos4_pdma0, "dma-pl330.0", 0x00041330, EXYNOS4_PA_PDMA0, {EXYNOS4_IRQ_PDMA0}, &exynos4_pdma0_pdata); static u8 exynos4210_pdma1_peri[] = { DMACH_PCM0_RX, DMACH_PCM0_TX, DMACH_PCM1_RX, DMACH_PCM1_TX, DMACH_MSM_REQ1, DMACH_MSM_REQ3, DMACH_SPI1_RX, DMACH_SPI1_TX, DMACH_I2S0S_TX, DMACH_I2S0_RX, DMACH_I2S0_TX, DMACH_I2S1_RX, DMACH_I2S1_TX, DMACH_UART0_RX, DMACH_UART0_TX, DMACH_UART1_RX, DMACH_UART1_TX, DMACH_UART3_RX, DMACH_UART3_TX, DMACH_SLIMBUS1_RX, DMACH_SLIMBUS1_TX, DMACH_SLIMBUS3_RX, DMACH_SLIMBUS3_TX, DMACH_SLIMBUS5_RX, DMACH_SLIMBUS5_TX, }; static u8 exynos4212_pdma1_peri[] = { DMACH_PCM0_RX, DMACH_PCM0_TX, DMACH_PCM1_RX, DMACH_PCM1_TX, DMACH_MIPI_HSI2, DMACH_MIPI_HSI3, DMACH_SPI1_RX, DMACH_SPI1_TX, DMACH_I2S0S_TX, DMACH_I2S0_RX, DMACH_I2S0_TX, DMACH_I2S1_RX, DMACH_I2S1_TX, DMACH_UART0_RX, DMACH_UART0_TX, DMACH_UART1_RX, DMACH_UART1_TX, DMACH_UART3_RX, DMACH_UART3_TX, DMACH_SLIMBUS1_RX, DMACH_SLIMBUS1_TX, DMACH_SLIMBUS3_RX, DMACH_SLIMBUS3_TX, DMACH_SLIMBUS5_RX, DMACH_SLIMBUS5_TX, DMACH_SLIMBUS0AUX_RX, DMACH_SLIMBUS0AUX_TX, DMACH_SPDIF, DMACH_MIPI_HSI6, DMACH_MIPI_HSI7, }; static struct dma_pl330_platdata exynos4_pdma1_pdata; static AMBA_AHB_DEVICE(exynos4_pdma1, "dma-pl330.1", 0x00041330, EXYNOS4_PA_PDMA1, {EXYNOS4_IRQ_PDMA1}, &exynos4_pdma1_pdata); static u8 mdma_peri[] = { DMACH_MTOM_0, DMACH_MTOM_1, DMACH_MTOM_2, DMACH_MTOM_3, DMACH_MTOM_4, DMACH_MTOM_5, DMACH_MTOM_6, DMACH_MTOM_7, }; static struct dma_pl330_platdata exynos4_mdma1_pdata = { .nr_valid_peri = ARRAY_SIZE(mdma_peri), .peri_id = mdma_peri, }; static AMBA_AHB_DEVICE(exynos4_mdma1, "dma-pl330.2", 0x00041330, EXYNOS4_PA_MDMA1, {EXYNOS4_IRQ_MDMA1}, &exynos4_mdma1_pdata); static int __init exynos4_dma_init(void) { if (of_have_populated_dt()) return 0; if (soc_is_exynos4210()) { exynos4_pdma0_pdata.nr_valid_peri = ARRAY_SIZE(exynos4210_pdma0_peri); exynos4_pdma0_pdata.peri_id = exynos4210_pdma0_peri; exynos4_pdma1_pdata.nr_valid_peri = ARRAY_SIZE(exynos4210_pdma1_peri); exynos4_pdma1_pdata.peri_id = exynos4210_pdma1_peri; } else if (soc_is_exynos4212() || soc_is_exynos4412()) { exynos4_pdma0_pdata.nr_valid_peri = ARRAY_SIZE(exynos4212_pdma0_peri); exynos4_pdma0_pdata.peri_id = exynos4212_pdma0_peri; exynos4_pdma1_pdata.nr_valid_peri = ARRAY_SIZE(exynos4212_pdma1_peri); exynos4_pdma1_pdata.peri_id = exynos4212_pdma1_peri; } dma_cap_set(DMA_SLAVE, exynos4_pdma0_pdata.cap_mask); dma_cap_set(DMA_CYCLIC, exynos4_pdma0_pdata.cap_mask); amba_device_register(&exynos4_pdma0_device, &iomem_resource); dma_cap_set(DMA_SLAVE, exynos4_pdma1_pdata.cap_mask); dma_cap_set(DMA_CYCLIC, exynos4_pdma1_pdata.cap_mask); amba_device_register(&exynos4_pdma1_device, &iomem_resource); dma_cap_set(DMA_MEMCPY, exynos4_mdma1_pdata.cap_mask); amba_device_register(&exynos4_mdma1_device, &iomem_resource); return 0; } arch_initcall(exynos4_dma_init);