/* * arch/arm/mach-spear3xx/spear310.c * * SPEAr310 machine source file * * Copyright (C) 2009-2012 ST Microelectronics * Viresh Kumar <vireshk@kernel.org> * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. */ #define pr_fmt(fmt) "SPEAr310: " fmt #include <linux/amba/pl08x.h> #include <linux/amba/serial.h> #include <linux/of_platform.h> #include <asm/mach/arch.h> #include "generic.h" #include <mach/spear.h> #define SPEAR310_UART1_BASE UL(0xB2000000) #define SPEAR310_UART2_BASE UL(0xB2080000) #define SPEAR310_UART3_BASE UL(0xB2100000) #define SPEAR310_UART4_BASE UL(0xB2180000) #define SPEAR310_UART5_BASE UL(0xB2200000) /* DMAC platform data's slave info */ struct pl08x_channel_data spear310_dma_info[] = { { .bus_id = "uart0_rx", .min_signal = 2, .max_signal = 2, .muxval = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart0_tx", .min_signal = 3, .max_signal = 3, .muxval = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ssp0_rx", .min_signal = 8, .max_signal = 8, .muxval = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ssp0_tx", .min_signal = 9, .max_signal = 9, .muxval = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "i2c_rx", .min_signal = 10, .max_signal = 10, .muxval = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "i2c_tx", .min_signal = 11, .max_signal = 11, .muxval = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "irda", .min_signal = 12, .max_signal = 12, .muxval = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "adc", .min_signal = 13, .max_signal = 13, .muxval = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "to_jpeg", .min_signal = 14, .max_signal = 14, .muxval = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "from_jpeg", .min_signal = 15, .max_signal = 15, .muxval = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart1_rx", .min_signal = 0, .max_signal = 0, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart1_tx", .min_signal = 1, .max_signal = 1, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart2_rx", .min_signal = 2, .max_signal = 2, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart2_tx", .min_signal = 3, .max_signal = 3, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart3_rx", .min_signal = 4, .max_signal = 4, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart3_tx", .min_signal = 5, .max_signal = 5, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart4_rx", .min_signal = 6, .max_signal = 6, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart4_tx", .min_signal = 7, .max_signal = 7, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart5_rx", .min_signal = 8, .max_signal = 8, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart5_tx", .min_signal = 9, .max_signal = 9, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras5_rx", .min_signal = 10, .max_signal = 10, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras5_tx", .min_signal = 11, .max_signal = 11, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras6_rx", .min_signal = 12, .max_signal = 12, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras6_tx", .min_signal = 13, .max_signal = 13, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras7_rx", .min_signal = 14, .max_signal = 14, .muxval = 1, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras7_tx", .min_signal = 15, .max_signal = 15, .muxval = 1, .periph_buses = PL08X_AHB1, }, }; /* uart devices plat data */ static struct amba_pl011_data spear310_uart_data[] = { { .dma_filter = pl08x_filter_id, .dma_tx_param = "uart1_tx", .dma_rx_param = "uart1_rx", }, { .dma_filter = pl08x_filter_id, .dma_tx_param = "uart2_tx", .dma_rx_param = "uart2_rx", }, { .dma_filter = pl08x_filter_id, .dma_tx_param = "uart3_tx", .dma_rx_param = "uart3_rx", }, { .dma_filter = pl08x_filter_id, .dma_tx_param = "uart4_tx", .dma_rx_param = "uart4_rx", }, { .dma_filter = pl08x_filter_id, .dma_tx_param = "uart5_tx", .dma_rx_param = "uart5_rx", }, }; /* Add SPEAr310 auxdata to pass platform data */ static struct of_dev_auxdata spear310_auxdata_lookup[] __initdata = { OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL, &pl022_plat_data), OF_DEV_AUXDATA("arm,pl080", SPEAR_ICM3_DMA_BASE, NULL, &pl080_plat_data), OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART1_BASE, NULL, &spear310_uart_data[0]), OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART2_BASE, NULL, &spear310_uart_data[1]), OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART3_BASE, NULL, &spear310_uart_data[2]), OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART4_BASE, NULL, &spear310_uart_data[3]), OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART5_BASE, NULL, &spear310_uart_data[4]), {} }; static void __init spear310_dt_init(void) { pl080_plat_data.slave_channels = spear310_dma_info; pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear310_dma_info); of_platform_default_populate(NULL, spear310_auxdata_lookup, NULL); } static const char * const spear310_dt_board_compat[] = { "st,spear310", "st,spear310-evb", NULL, }; static void __init spear310_map_io(void) { spear3xx_map_io(); } DT_MACHINE_START(SPEAR310_DT, "ST SPEAr310 SoC with Flattened Device Tree") .map_io = spear310_map_io, .init_time = spear3xx_timer_init, .init_machine = spear310_dt_init, .restart = spear_restart, .dt_compat = spear310_dt_board_compat, MACHINE_END