2 * arch/arm/mach-spear3xx/spear310.c
4 * SPEAr310 machine source file
6 * Copyright (C) 2009-2012 ST Microelectronics
7 * Viresh Kumar <viresh.linux@gmail.com>
9 * This file is licensed under the terms of the GNU General Public
10 * License version 2. This program is licensed "as is" without any
11 * warranty of any kind, whether express or implied.
14 #define pr_fmt(fmt) "SPEAr310: " fmt
16 #include <linux/amba/pl08x.h>
17 #include <linux/amba/serial.h>
18 #include <linux/of_platform.h>
19 #include <asm/hardware/vic.h>
20 #include <asm/mach/arch.h>
21 #include <mach/generic.h>
22 #include <mach/spear.h>
24 #define SPEAR310_UART1_BASE UL(0xB2000000)
25 #define SPEAR310_UART2_BASE UL(0xB2080000)
26 #define SPEAR310_UART3_BASE UL(0xB2100000)
27 #define SPEAR310_UART4_BASE UL(0xB2180000)
28 #define SPEAR310_UART5_BASE UL(0xB2200000)
30 /* DMAC platform data's slave info */
31 struct pl08x_channel_data spear310_dma_info[] = {
37 .periph_buses = PL08X_AHB1,
43 .periph_buses = PL08X_AHB1,
49 .periph_buses = PL08X_AHB1,
55 .periph_buses = PL08X_AHB1,
61 .periph_buses = PL08X_AHB1,
67 .periph_buses = PL08X_AHB1,
73 .periph_buses = PL08X_AHB1,
79 .periph_buses = PL08X_AHB1,
85 .periph_buses = PL08X_AHB1,
87 .bus_id = "from_jpeg",
91 .periph_buses = PL08X_AHB1,
97 .periph_buses = PL08X_AHB1,
103 .periph_buses = PL08X_AHB1,
105 .bus_id = "uart2_rx",
109 .periph_buses = PL08X_AHB1,
111 .bus_id = "uart2_tx",
115 .periph_buses = PL08X_AHB1,
117 .bus_id = "uart3_rx",
121 .periph_buses = PL08X_AHB1,
123 .bus_id = "uart3_tx",
127 .periph_buses = PL08X_AHB1,
129 .bus_id = "uart4_rx",
133 .periph_buses = PL08X_AHB1,
135 .bus_id = "uart4_tx",
139 .periph_buses = PL08X_AHB1,
141 .bus_id = "uart5_rx",
145 .periph_buses = PL08X_AHB1,
147 .bus_id = "uart5_tx",
151 .periph_buses = PL08X_AHB1,
157 .periph_buses = PL08X_AHB1,
163 .periph_buses = PL08X_AHB1,
169 .periph_buses = PL08X_AHB1,
175 .periph_buses = PL08X_AHB1,
181 .periph_buses = PL08X_AHB1,
187 .periph_buses = PL08X_AHB1,
191 /* uart devices plat data */
192 static struct amba_pl011_data spear310_uart_data[] = {
194 .dma_filter = pl08x_filter_id,
195 .dma_tx_param = "uart1_tx",
196 .dma_rx_param = "uart1_rx",
198 .dma_filter = pl08x_filter_id,
199 .dma_tx_param = "uart2_tx",
200 .dma_rx_param = "uart2_rx",
202 .dma_filter = pl08x_filter_id,
203 .dma_tx_param = "uart3_tx",
204 .dma_rx_param = "uart3_rx",
206 .dma_filter = pl08x_filter_id,
207 .dma_tx_param = "uart4_tx",
208 .dma_rx_param = "uart4_rx",
210 .dma_filter = pl08x_filter_id,
211 .dma_tx_param = "uart5_tx",
212 .dma_rx_param = "uart5_rx",
216 /* Add SPEAr310 auxdata to pass platform data */
217 static struct of_dev_auxdata spear310_auxdata_lookup[] __initdata = {
218 OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL,
220 OF_DEV_AUXDATA("arm,pl080", SPEAR3XX_ICM3_DMA_BASE, NULL,
222 OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART1_BASE, NULL,
223 &spear310_uart_data[0]),
224 OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART2_BASE, NULL,
225 &spear310_uart_data[1]),
226 OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART3_BASE, NULL,
227 &spear310_uart_data[2]),
228 OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART4_BASE, NULL,
229 &spear310_uart_data[3]),
230 OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART5_BASE, NULL,
231 &spear310_uart_data[4]),
235 static void __init spear310_dt_init(void)
237 pl080_plat_data.slave_channels = spear310_dma_info;
238 pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear310_dma_info);
240 of_platform_populate(NULL, of_default_bus_match_table,
241 spear310_auxdata_lookup, NULL);
244 static const char * const spear310_dt_board_compat[] = {
250 static void __init spear310_map_io(void)
255 DT_MACHINE_START(SPEAR310_DT, "ST SPEAr310 SoC with Flattened Device Tree")
256 .map_io = spear310_map_io,
257 .init_irq = spear3xx_dt_init_irq,
258 .handle_irq = vic_handle_irq,
259 .timer = &spear3xx_timer,
260 .init_machine = spear310_dt_init,
261 .restart = spear_restart,
262 .dt_compat = spear310_dt_board_compat,