2 * arch/arm/mach-spear3xx/spear320.c
4 * SPEAr320 machine source file
6 * Copyright (C) 2009-2012 ST Microelectronics
7 * Viresh Kumar <vireshk@kernel.org>
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) "SPEAr320: " fmt
16 #include <linux/amba/pl022.h>
17 #include <linux/amba/pl08x.h>
18 #include <linux/amba/serial.h>
19 #include <linux/of_platform.h>
20 #include <asm/mach/arch.h>
21 #include <asm/mach/map.h>
25 #define SPEAR320_UART1_BASE UL(0xA3000000)
26 #define SPEAR320_UART2_BASE UL(0xA4000000)
27 #define SPEAR320_SSP0_BASE UL(0xA5000000)
28 #define SPEAR320_SSP1_BASE UL(0xA6000000)
30 /* DMAC platform data's slave info */
31 struct pl08x_channel_data spear320_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_AHB2,
103 .periph_buses = PL08X_AHB2,
109 .periph_buses = PL08X_AHB2,
115 .periph_buses = PL08X_AHB2,
117 .bus_id = "uart1_rx",
121 .periph_buses = PL08X_AHB2,
123 .bus_id = "uart1_tx",
127 .periph_buses = PL08X_AHB2,
129 .bus_id = "uart2_rx",
133 .periph_buses = PL08X_AHB2,
135 .bus_id = "uart2_tx",
139 .periph_buses = PL08X_AHB2,
145 .periph_buses = PL08X_AHB2,
151 .periph_buses = PL08X_AHB2,
157 .periph_buses = PL08X_AHB2,
163 .periph_buses = PL08X_AHB2,
169 .periph_buses = PL08X_AHB2,
175 .periph_buses = PL08X_AHB2,
177 .bus_id = "rs485_rx",
181 .periph_buses = PL08X_AHB2,
183 .bus_id = "rs485_tx",
187 .periph_buses = PL08X_AHB2,
191 static struct pl022_ssp_controller spear320_ssp_data[] = {
195 .dma_filter = pl08x_filter_id,
196 .dma_tx_param = "ssp1_tx",
197 .dma_rx_param = "ssp1_rx",
201 .dma_filter = pl08x_filter_id,
202 .dma_tx_param = "ssp2_tx",
203 .dma_rx_param = "ssp2_rx",
207 static struct amba_pl011_data spear320_uart_data[] = {
209 .dma_filter = pl08x_filter_id,
210 .dma_tx_param = "uart1_tx",
211 .dma_rx_param = "uart1_rx",
213 .dma_filter = pl08x_filter_id,
214 .dma_tx_param = "uart2_tx",
215 .dma_rx_param = "uart2_rx",
219 /* Add SPEAr310 auxdata to pass platform data */
220 static struct of_dev_auxdata spear320_auxdata_lookup[] __initdata = {
221 OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL,
223 OF_DEV_AUXDATA("arm,pl080", SPEAR_ICM3_DMA_BASE, NULL,
225 OF_DEV_AUXDATA("arm,pl022", SPEAR320_SSP0_BASE, NULL,
226 &spear320_ssp_data[0]),
227 OF_DEV_AUXDATA("arm,pl022", SPEAR320_SSP1_BASE, NULL,
228 &spear320_ssp_data[1]),
229 OF_DEV_AUXDATA("arm,pl011", SPEAR320_UART1_BASE, NULL,
230 &spear320_uart_data[0]),
231 OF_DEV_AUXDATA("arm,pl011", SPEAR320_UART2_BASE, NULL,
232 &spear320_uart_data[1]),
236 static void __init spear320_dt_init(void)
238 pl080_plat_data.slave_channels = spear320_dma_info;
239 pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear320_dma_info);
241 of_platform_default_populate(NULL, spear320_auxdata_lookup, NULL);
244 static const char * const spear320_dt_board_compat[] = {
251 struct map_desc spear320_io_desc[] __initdata = {
253 .virtual = (unsigned long)VA_SPEAR320_SOC_CONFIG_BASE,
254 .pfn = __phys_to_pfn(SPEAR320_SOC_CONFIG_BASE),
260 static void __init spear320_map_io(void)
262 iotable_init(spear320_io_desc, ARRAY_SIZE(spear320_io_desc));
266 DT_MACHINE_START(SPEAR320_DT, "ST SPEAr320 SoC with Flattened Device Tree")
267 .map_io = spear320_map_io,
268 .init_time = spear3xx_timer_init,
269 .init_machine = spear320_dt_init,
270 .restart = spear_restart,
271 .dt_compat = spear320_dt_board_compat,