1/*
2 * arch/arm/mach-spear3xx/spear310.c
3 *
4 * SPEAr310 machine source file
5 *
6 * Copyright (C) 2009-2012 ST Microelectronics
7 * Viresh Kumar <viresh.linux@gmail.com>
8 *
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.
12 */
13
14#define pr_fmt(fmt) "SPEAr310: " fmt
15
16#include <linux/amba/pl08x.h>
17#include <linux/amba/serial.h>
18#include <linux/of_platform.h>
19#include <asm/mach/arch.h>
20#include "generic.h"
21#include <mach/spear.h>
22
23#define SPEAR310_UART1_BASE		UL(0xB2000000)
24#define SPEAR310_UART2_BASE		UL(0xB2080000)
25#define SPEAR310_UART3_BASE		UL(0xB2100000)
26#define SPEAR310_UART4_BASE		UL(0xB2180000)
27#define SPEAR310_UART5_BASE		UL(0xB2200000)
28
29/* DMAC platform data's slave info */
30struct pl08x_channel_data spear310_dma_info[] = {
31	{
32		.bus_id = "uart0_rx",
33		.min_signal = 2,
34		.max_signal = 2,
35		.muxval = 0,
36		.periph_buses = PL08X_AHB1,
37	}, {
38		.bus_id = "uart0_tx",
39		.min_signal = 3,
40		.max_signal = 3,
41		.muxval = 0,
42		.periph_buses = PL08X_AHB1,
43	}, {
44		.bus_id = "ssp0_rx",
45		.min_signal = 8,
46		.max_signal = 8,
47		.muxval = 0,
48		.periph_buses = PL08X_AHB1,
49	}, {
50		.bus_id = "ssp0_tx",
51		.min_signal = 9,
52		.max_signal = 9,
53		.muxval = 0,
54		.periph_buses = PL08X_AHB1,
55	}, {
56		.bus_id = "i2c_rx",
57		.min_signal = 10,
58		.max_signal = 10,
59		.muxval = 0,
60		.periph_buses = PL08X_AHB1,
61	}, {
62		.bus_id = "i2c_tx",
63		.min_signal = 11,
64		.max_signal = 11,
65		.muxval = 0,
66		.periph_buses = PL08X_AHB1,
67	}, {
68		.bus_id = "irda",
69		.min_signal = 12,
70		.max_signal = 12,
71		.muxval = 0,
72		.periph_buses = PL08X_AHB1,
73	}, {
74		.bus_id = "adc",
75		.min_signal = 13,
76		.max_signal = 13,
77		.muxval = 0,
78		.periph_buses = PL08X_AHB1,
79	}, {
80		.bus_id = "to_jpeg",
81		.min_signal = 14,
82		.max_signal = 14,
83		.muxval = 0,
84		.periph_buses = PL08X_AHB1,
85	}, {
86		.bus_id = "from_jpeg",
87		.min_signal = 15,
88		.max_signal = 15,
89		.muxval = 0,
90		.periph_buses = PL08X_AHB1,
91	}, {
92		.bus_id = "uart1_rx",
93		.min_signal = 0,
94		.max_signal = 0,
95		.muxval = 1,
96		.periph_buses = PL08X_AHB1,
97	}, {
98		.bus_id = "uart1_tx",
99		.min_signal = 1,
100		.max_signal = 1,
101		.muxval = 1,
102		.periph_buses = PL08X_AHB1,
103	}, {
104		.bus_id = "uart2_rx",
105		.min_signal = 2,
106		.max_signal = 2,
107		.muxval = 1,
108		.periph_buses = PL08X_AHB1,
109	}, {
110		.bus_id = "uart2_tx",
111		.min_signal = 3,
112		.max_signal = 3,
113		.muxval = 1,
114		.periph_buses = PL08X_AHB1,
115	}, {
116		.bus_id = "uart3_rx",
117		.min_signal = 4,
118		.max_signal = 4,
119		.muxval = 1,
120		.periph_buses = PL08X_AHB1,
121	}, {
122		.bus_id = "uart3_tx",
123		.min_signal = 5,
124		.max_signal = 5,
125		.muxval = 1,
126		.periph_buses = PL08X_AHB1,
127	}, {
128		.bus_id = "uart4_rx",
129		.min_signal = 6,
130		.max_signal = 6,
131		.muxval = 1,
132		.periph_buses = PL08X_AHB1,
133	}, {
134		.bus_id = "uart4_tx",
135		.min_signal = 7,
136		.max_signal = 7,
137		.muxval = 1,
138		.periph_buses = PL08X_AHB1,
139	}, {
140		.bus_id = "uart5_rx",
141		.min_signal = 8,
142		.max_signal = 8,
143		.muxval = 1,
144		.periph_buses = PL08X_AHB1,
145	}, {
146		.bus_id = "uart5_tx",
147		.min_signal = 9,
148		.max_signal = 9,
149		.muxval = 1,
150		.periph_buses = PL08X_AHB1,
151	}, {
152		.bus_id = "ras5_rx",
153		.min_signal = 10,
154		.max_signal = 10,
155		.muxval = 1,
156		.periph_buses = PL08X_AHB1,
157	}, {
158		.bus_id = "ras5_tx",
159		.min_signal = 11,
160		.max_signal = 11,
161		.muxval = 1,
162		.periph_buses = PL08X_AHB1,
163	}, {
164		.bus_id = "ras6_rx",
165		.min_signal = 12,
166		.max_signal = 12,
167		.muxval = 1,
168		.periph_buses = PL08X_AHB1,
169	}, {
170		.bus_id = "ras6_tx",
171		.min_signal = 13,
172		.max_signal = 13,
173		.muxval = 1,
174		.periph_buses = PL08X_AHB1,
175	}, {
176		.bus_id = "ras7_rx",
177		.min_signal = 14,
178		.max_signal = 14,
179		.muxval = 1,
180		.periph_buses = PL08X_AHB1,
181	}, {
182		.bus_id = "ras7_tx",
183		.min_signal = 15,
184		.max_signal = 15,
185		.muxval = 1,
186		.periph_buses = PL08X_AHB1,
187	},
188};
189
190/* uart devices plat data */
191static struct amba_pl011_data spear310_uart_data[] = {
192	{
193		.dma_filter = pl08x_filter_id,
194		.dma_tx_param = "uart1_tx",
195		.dma_rx_param = "uart1_rx",
196	}, {
197		.dma_filter = pl08x_filter_id,
198		.dma_tx_param = "uart2_tx",
199		.dma_rx_param = "uart2_rx",
200	}, {
201		.dma_filter = pl08x_filter_id,
202		.dma_tx_param = "uart3_tx",
203		.dma_rx_param = "uart3_rx",
204	}, {
205		.dma_filter = pl08x_filter_id,
206		.dma_tx_param = "uart4_tx",
207		.dma_rx_param = "uart4_rx",
208	}, {
209		.dma_filter = pl08x_filter_id,
210		.dma_tx_param = "uart5_tx",
211		.dma_rx_param = "uart5_rx",
212	},
213};
214
215/* Add SPEAr310 auxdata to pass platform data */
216static struct of_dev_auxdata spear310_auxdata_lookup[] __initdata = {
217	OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL,
218			&pl022_plat_data),
219	OF_DEV_AUXDATA("arm,pl080", SPEAR_ICM3_DMA_BASE, NULL,
220			&pl080_plat_data),
221	OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART1_BASE, NULL,
222			&spear310_uart_data[0]),
223	OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART2_BASE, NULL,
224			&spear310_uart_data[1]),
225	OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART3_BASE, NULL,
226			&spear310_uart_data[2]),
227	OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART4_BASE, NULL,
228			&spear310_uart_data[3]),
229	OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART5_BASE, NULL,
230			&spear310_uart_data[4]),
231	{}
232};
233
234static void __init spear310_dt_init(void)
235{
236	pl080_plat_data.slave_channels = spear310_dma_info;
237	pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear310_dma_info);
238
239	of_platform_populate(NULL, of_default_bus_match_table,
240			spear310_auxdata_lookup, NULL);
241}
242
243static const char * const spear310_dt_board_compat[] = {
244	"st,spear310",
245	"st,spear310-evb",
246	NULL,
247};
248
249static void __init spear310_map_io(void)
250{
251	spear3xx_map_io();
252}
253
254DT_MACHINE_START(SPEAR310_DT, "ST SPEAr310 SoC with Flattened Device Tree")
255	.map_io		=	spear310_map_io,
256	.init_time	=	spear3xx_timer_init,
257	.init_machine	=	spear310_dt_init,
258	.restart	=	spear_restart,
259	.dt_compat	=	spear310_dt_board_compat,
260MACHINE_END
261