mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
274 lines
5.9 KiB
274 lines
5.9 KiB
/* |
|
* arch/arm/mach-spear3xx/spear320.c |
|
* |
|
* SPEAr320 machine source file |
|
* |
|
* Copyright (C) 2009-2012 ST Microelectronics |
|
* Viresh Kumar <[email protected]> |
|
* |
|
* 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) "SPEAr320: " fmt |
|
|
|
#include <linux/amba/pl022.h> |
|
#include <linux/amba/pl08x.h> |
|
#include <linux/amba/serial.h> |
|
#include <linux/of_platform.h> |
|
#include <asm/mach/arch.h> |
|
#include <asm/mach/map.h> |
|
#include "generic.h" |
|
#include <mach/spear.h> |
|
|
|
#define SPEAR320_UART1_BASE UL(0xA3000000) |
|
#define SPEAR320_UART2_BASE UL(0xA4000000) |
|
#define SPEAR320_SSP0_BASE UL(0xA5000000) |
|
#define SPEAR320_SSP1_BASE UL(0xA6000000) |
|
|
|
/* DMAC platform data's slave info */ |
|
struct pl08x_channel_data spear320_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 = "i2c0_rx", |
|
.min_signal = 10, |
|
.max_signal = 10, |
|
.muxval = 0, |
|
.periph_buses = PL08X_AHB1, |
|
}, { |
|
.bus_id = "i2c0_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 = "ssp1_rx", |
|
.min_signal = 0, |
|
.max_signal = 0, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "ssp1_tx", |
|
.min_signal = 1, |
|
.max_signal = 1, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "ssp2_rx", |
|
.min_signal = 2, |
|
.max_signal = 2, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "ssp2_tx", |
|
.min_signal = 3, |
|
.max_signal = 3, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "uart1_rx", |
|
.min_signal = 4, |
|
.max_signal = 4, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "uart1_tx", |
|
.min_signal = 5, |
|
.max_signal = 5, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "uart2_rx", |
|
.min_signal = 6, |
|
.max_signal = 6, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "uart2_tx", |
|
.min_signal = 7, |
|
.max_signal = 7, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "i2c1_rx", |
|
.min_signal = 8, |
|
.max_signal = 8, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "i2c1_tx", |
|
.min_signal = 9, |
|
.max_signal = 9, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "i2c2_rx", |
|
.min_signal = 10, |
|
.max_signal = 10, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "i2c2_tx", |
|
.min_signal = 11, |
|
.max_signal = 11, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "i2s_rx", |
|
.min_signal = 12, |
|
.max_signal = 12, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "i2s_tx", |
|
.min_signal = 13, |
|
.max_signal = 13, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "rs485_rx", |
|
.min_signal = 14, |
|
.max_signal = 14, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, { |
|
.bus_id = "rs485_tx", |
|
.min_signal = 15, |
|
.max_signal = 15, |
|
.muxval = 1, |
|
.periph_buses = PL08X_AHB2, |
|
}, |
|
}; |
|
|
|
static struct pl022_ssp_controller spear320_ssp_data[] = { |
|
{ |
|
.bus_id = 1, |
|
.enable_dma = 1, |
|
.dma_filter = pl08x_filter_id, |
|
.dma_tx_param = "ssp1_tx", |
|
.dma_rx_param = "ssp1_rx", |
|
.num_chipselect = 2, |
|
}, { |
|
.bus_id = 2, |
|
.enable_dma = 1, |
|
.dma_filter = pl08x_filter_id, |
|
.dma_tx_param = "ssp2_tx", |
|
.dma_rx_param = "ssp2_rx", |
|
.num_chipselect = 2, |
|
} |
|
}; |
|
|
|
static struct amba_pl011_data spear320_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", |
|
}, |
|
}; |
|
|
|
/* Add SPEAr310 auxdata to pass platform data */ |
|
static struct of_dev_auxdata spear320_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,pl022", SPEAR320_SSP0_BASE, NULL, |
|
&spear320_ssp_data[0]), |
|
OF_DEV_AUXDATA("arm,pl022", SPEAR320_SSP1_BASE, NULL, |
|
&spear320_ssp_data[1]), |
|
OF_DEV_AUXDATA("arm,pl011", SPEAR320_UART1_BASE, NULL, |
|
&spear320_uart_data[0]), |
|
OF_DEV_AUXDATA("arm,pl011", SPEAR320_UART2_BASE, NULL, |
|
&spear320_uart_data[1]), |
|
{} |
|
}; |
|
|
|
static void __init spear320_dt_init(void) |
|
{ |
|
pl080_plat_data.slave_channels = spear320_dma_info; |
|
pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear320_dma_info); |
|
|
|
of_platform_default_populate(NULL, spear320_auxdata_lookup, NULL); |
|
} |
|
|
|
static const char * const spear320_dt_board_compat[] = { |
|
"st,spear320", |
|
"st,spear320-evb", |
|
"st,spear320-hmi", |
|
NULL, |
|
}; |
|
|
|
struct map_desc spear320_io_desc[] __initdata = { |
|
{ |
|
.virtual = (unsigned long)VA_SPEAR320_SOC_CONFIG_BASE, |
|
.pfn = __phys_to_pfn(SPEAR320_SOC_CONFIG_BASE), |
|
.length = SZ_16M, |
|
.type = MT_DEVICE |
|
}, |
|
}; |
|
|
|
static void __init spear320_map_io(void) |
|
{ |
|
iotable_init(spear320_io_desc, ARRAY_SIZE(spear320_io_desc)); |
|
spear3xx_map_io(); |
|
} |
|
|
|
DT_MACHINE_START(SPEAR320_DT, "ST SPEAr320 SoC with Flattened Device Tree") |
|
.map_io = spear320_map_io, |
|
.init_time = spear3xx_timer_init, |
|
.init_machine = spear320_dt_init, |
|
.restart = spear_restart, |
|
.dt_compat = spear320_dt_board_compat, |
|
MACHINE_END
|
|
|