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-rw-r--r--arch/arm/mach-spear/spear300.c220
1 files changed, 220 insertions, 0 deletions
diff --git a/arch/arm/mach-spear/spear300.c b/arch/arm/mach-spear/spear300.c
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index 000000000000..bac56e845f7a
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+++ b/arch/arm/mach-spear/spear300.c
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+/*
+ * arch/arm/mach-spear3xx/spear300.c
+ *
+ * SPEAr300 machine source file
+ *
+ * Copyright (C) 2009-2012 ST Microelectronics
+ * Viresh Kumar <viresh.linux@gmail.com>
+ *
+ * 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) "SPEAr300: " fmt
+
+#include <linux/amba/pl08x.h>
+#include <linux/irqchip.h>
+#include <linux/of_platform.h>
+#include <asm/mach/arch.h>
+#include "generic.h"
+#include <mach/spear.h>
+
+/* DMAC platform data's slave info */
+struct pl08x_channel_data spear300_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 = "ras0_rx",
+ .min_signal = 0,
+ .max_signal = 0,
+ .muxval = 1,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "ras0_tx",
+ .min_signal = 1,
+ .max_signal = 1,
+ .muxval = 1,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "ras1_rx",
+ .min_signal = 2,
+ .max_signal = 2,
+ .muxval = 1,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "ras1_tx",
+ .min_signal = 3,
+ .max_signal = 3,
+ .muxval = 1,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "ras2_rx",
+ .min_signal = 4,
+ .max_signal = 4,
+ .muxval = 1,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "ras2_tx",
+ .min_signal = 5,
+ .max_signal = 5,
+ .muxval = 1,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "ras3_rx",
+ .min_signal = 6,
+ .max_signal = 6,
+ .muxval = 1,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "ras3_tx",
+ .min_signal = 7,
+ .max_signal = 7,
+ .muxval = 1,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "ras4_rx",
+ .min_signal = 8,
+ .max_signal = 8,
+ .muxval = 1,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "ras4_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,
+ },
+};
+
+/* Add SPEAr300 auxdata to pass platform data */
+static struct of_dev_auxdata spear300_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),
+ {}
+};
+
+static void __init spear300_dt_init(void)
+{
+ pl080_plat_data.slave_channels = spear300_dma_info;
+ pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear300_dma_info);
+
+ of_platform_populate(NULL, of_default_bus_match_table,
+ spear300_auxdata_lookup, NULL);
+}
+
+static const char * const spear300_dt_board_compat[] = {
+ "st,spear300",
+ "st,spear300-evb",
+ NULL,
+};
+
+static void __init spear300_map_io(void)
+{
+ spear3xx_map_io();
+}
+
+DT_MACHINE_START(SPEAR300_DT, "ST SPEAr300 SoC with Flattened Device Tree")
+ .map_io = spear300_map_io,
+ .init_irq = irqchip_init,
+ .init_time = spear3xx_timer_init,
+ .init_machine = spear300_dt_init,
+ .restart = spear_restart,
+ .dt_compat = spear300_dt_board_compat,
+MACHINE_END