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linux/arch/arm/mach-shmobile/setup-r8a73a4.c
Guennadi Liakhovetski 3794c16634 ARM: shmobile: r8a73a4: add a DMAC platform device and clock for it 
Add a DMAC platform device and clock definitions for it on r8a73a4.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-10-08 09:27:21 +09:00

320 lines
9.5 KiB
C
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/*
* r8a73a4 processor support
*
* Copyright (C) 2013 Renesas Solutions Corp.
* Copyright (C) 2013 Magnus Damm
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/of_platform.h>
#include <linux/platform_data/irq-renesas-irqc.h>
#include <linux/serial_sci.h>
#include <linux/sh_dma.h>
#include <linux/sh_timer.h>
#include <mach/common.h>
#include <mach/dma-register.h>
#include <mach/irqs.h>
#include <mach/r8a73a4.h>
#include <asm/mach/arch.h>
static const struct resource pfc_resources[] = {
DEFINE_RES_MEM(0xe6050000, 0x9000),
};
void __init r8a73a4_pinmux_init(void)
{
platform_device_register_simple("pfc-r8a73a4", -1, pfc_resources,
ARRAY_SIZE(pfc_resources));
}
#define SCIF_COMMON(scif_type, baseaddr, irq) \
.type = scif_type, \
.mapbase = baseaddr, \
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, \
.scbrr_algo_id = SCBRR_ALGO_4, \
.irqs = SCIx_IRQ_MUXED(irq)
#define SCIFA_DATA(index, baseaddr, irq) \
[index] = { \
SCIF_COMMON(PORT_SCIFA, baseaddr, irq), \
.scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE0, \
}
#define SCIFB_DATA(index, baseaddr, irq) \
[index] = { \
SCIF_COMMON(PORT_SCIFB, baseaddr, irq), \
.scscr = SCSCR_RE | SCSCR_TE, \
}
enum { SCIFA0, SCIFA1, SCIFB0, SCIFB1, SCIFB2, SCIFB3 };
static const struct plat_sci_port scif[] = {
SCIFA_DATA(SCIFA0, 0xe6c40000, gic_spi(144)), /* SCIFA0 */
SCIFA_DATA(SCIFA1, 0xe6c50000, gic_spi(145)), /* SCIFA1 */
SCIFB_DATA(SCIFB0, 0xe6c20000, gic_spi(148)), /* SCIFB0 */
SCIFB_DATA(SCIFB1, 0xe6c30000, gic_spi(149)), /* SCIFB1 */
SCIFB_DATA(SCIFB2, 0xe6ce0000, gic_spi(150)), /* SCIFB2 */
SCIFB_DATA(SCIFB3, 0xe6cf0000, gic_spi(151)), /* SCIFB3 */
};
static inline void r8a73a4_register_scif(int idx)
{
platform_device_register_data(&platform_bus, "sh-sci", idx, &scif[idx],
sizeof(struct plat_sci_port));
}
static const struct renesas_irqc_config irqc0_data = {
.irq_base = irq_pin(0), /* IRQ0 -> IRQ31 */
};
static const struct resource irqc0_resources[] = {
DEFINE_RES_MEM(0xe61c0000, 0x200), /* IRQC Event Detector Block_0 */
DEFINE_RES_IRQ(gic_spi(0)), /* IRQ0 */
DEFINE_RES_IRQ(gic_spi(1)), /* IRQ1 */
DEFINE_RES_IRQ(gic_spi(2)), /* IRQ2 */
DEFINE_RES_IRQ(gic_spi(3)), /* IRQ3 */
DEFINE_RES_IRQ(gic_spi(4)), /* IRQ4 */
DEFINE_RES_IRQ(gic_spi(5)), /* IRQ5 */
DEFINE_RES_IRQ(gic_spi(6)), /* IRQ6 */
DEFINE_RES_IRQ(gic_spi(7)), /* IRQ7 */
DEFINE_RES_IRQ(gic_spi(8)), /* IRQ8 */
DEFINE_RES_IRQ(gic_spi(9)), /* IRQ9 */
DEFINE_RES_IRQ(gic_spi(10)), /* IRQ10 */
DEFINE_RES_IRQ(gic_spi(11)), /* IRQ11 */
DEFINE_RES_IRQ(gic_spi(12)), /* IRQ12 */
DEFINE_RES_IRQ(gic_spi(13)), /* IRQ13 */
DEFINE_RES_IRQ(gic_spi(14)), /* IRQ14 */
DEFINE_RES_IRQ(gic_spi(15)), /* IRQ15 */
DEFINE_RES_IRQ(gic_spi(16)), /* IRQ16 */
DEFINE_RES_IRQ(gic_spi(17)), /* IRQ17 */
DEFINE_RES_IRQ(gic_spi(18)), /* IRQ18 */
DEFINE_RES_IRQ(gic_spi(19)), /* IRQ19 */
DEFINE_RES_IRQ(gic_spi(20)), /* IRQ20 */
DEFINE_RES_IRQ(gic_spi(21)), /* IRQ21 */
DEFINE_RES_IRQ(gic_spi(22)), /* IRQ22 */
DEFINE_RES_IRQ(gic_spi(23)), /* IRQ23 */
DEFINE_RES_IRQ(gic_spi(24)), /* IRQ24 */
DEFINE_RES_IRQ(gic_spi(25)), /* IRQ25 */
DEFINE_RES_IRQ(gic_spi(26)), /* IRQ26 */
DEFINE_RES_IRQ(gic_spi(27)), /* IRQ27 */
DEFINE_RES_IRQ(gic_spi(28)), /* IRQ28 */
DEFINE_RES_IRQ(gic_spi(29)), /* IRQ29 */
DEFINE_RES_IRQ(gic_spi(30)), /* IRQ30 */
DEFINE_RES_IRQ(gic_spi(31)), /* IRQ31 */
};
static const struct renesas_irqc_config irqc1_data = {
.irq_base = irq_pin(32), /* IRQ32 -> IRQ57 */
};
static const struct resource irqc1_resources[] = {
DEFINE_RES_MEM(0xe61c0200, 0x200), /* IRQC Event Detector Block_1 */
DEFINE_RES_IRQ(gic_spi(32)), /* IRQ32 */
DEFINE_RES_IRQ(gic_spi(33)), /* IRQ33 */
DEFINE_RES_IRQ(gic_spi(34)), /* IRQ34 */
DEFINE_RES_IRQ(gic_spi(35)), /* IRQ35 */
DEFINE_RES_IRQ(gic_spi(36)), /* IRQ36 */
DEFINE_RES_IRQ(gic_spi(37)), /* IRQ37 */
DEFINE_RES_IRQ(gic_spi(38)), /* IRQ38 */
DEFINE_RES_IRQ(gic_spi(39)), /* IRQ39 */
DEFINE_RES_IRQ(gic_spi(40)), /* IRQ40 */
DEFINE_RES_IRQ(gic_spi(41)), /* IRQ41 */
DEFINE_RES_IRQ(gic_spi(42)), /* IRQ42 */
DEFINE_RES_IRQ(gic_spi(43)), /* IRQ43 */
DEFINE_RES_IRQ(gic_spi(44)), /* IRQ44 */
DEFINE_RES_IRQ(gic_spi(45)), /* IRQ45 */
DEFINE_RES_IRQ(gic_spi(46)), /* IRQ46 */
DEFINE_RES_IRQ(gic_spi(47)), /* IRQ47 */
DEFINE_RES_IRQ(gic_spi(48)), /* IRQ48 */
DEFINE_RES_IRQ(gic_spi(49)), /* IRQ49 */
DEFINE_RES_IRQ(gic_spi(50)), /* IRQ50 */
DEFINE_RES_IRQ(gic_spi(51)), /* IRQ51 */
DEFINE_RES_IRQ(gic_spi(52)), /* IRQ52 */
DEFINE_RES_IRQ(gic_spi(53)), /* IRQ53 */
DEFINE_RES_IRQ(gic_spi(54)), /* IRQ54 */
DEFINE_RES_IRQ(gic_spi(55)), /* IRQ55 */
DEFINE_RES_IRQ(gic_spi(56)), /* IRQ56 */
DEFINE_RES_IRQ(gic_spi(57)), /* IRQ57 */
};
#define r8a73a4_register_irqc(idx) \
platform_device_register_resndata(&platform_bus, "renesas_irqc", \
idx, irqc##idx##_resources, \
ARRAY_SIZE(irqc##idx##_resources), \
&irqc##idx##_data, \
sizeof(struct renesas_irqc_config))
/* Thermal0 -> Thermal2 */
static const struct resource thermal0_resources[] = {
DEFINE_RES_MEM(0xe61f0000, 0x14),
DEFINE_RES_MEM(0xe61f0100, 0x38),
DEFINE_RES_MEM(0xe61f0200, 0x38),
DEFINE_RES_MEM(0xe61f0300, 0x38),
DEFINE_RES_IRQ(gic_spi(69)),
};
#define r8a73a4_register_thermal() \
platform_device_register_simple("rcar_thermal", -1, \
thermal0_resources, \
ARRAY_SIZE(thermal0_resources))
static struct sh_timer_config cmt10_platform_data = {
.name = "CMT10",
.timer_bit = 0,
.clockevent_rating = 80,
};
static struct resource cmt10_resources[] = {
DEFINE_RES_MEM(0xe6130010, 0x0c),
DEFINE_RES_MEM(0xe6130000, 0x04),
DEFINE_RES_IRQ(gic_spi(120)), /* CMT1_0 */
};
#define r8a7790_register_cmt(idx) \
platform_device_register_resndata(&platform_bus, "sh_cmt", \
idx, cmt##idx##_resources, \
ARRAY_SIZE(cmt##idx##_resources), \
&cmt##idx##_platform_data, \
sizeof(struct sh_timer_config))
void __init r8a73a4_add_dt_devices(void)
{
r8a73a4_register_scif(SCIFA0);
r8a73a4_register_scif(SCIFA1);
r8a73a4_register_scif(SCIFB0);
r8a73a4_register_scif(SCIFB1);
r8a73a4_register_scif(SCIFB2);
r8a73a4_register_scif(SCIFB3);
r8a7790_register_cmt(10);
}
/* DMA */
static const struct sh_dmae_slave_config dma_slaves[] = {
{
.slave_id = SHDMA_SLAVE_MMCIF0_TX,
.addr = 0xee200034,
.chcr = CHCR_TX(XMIT_SZ_32BIT),
.mid_rid = 0xd1,
}, {
.slave_id = SHDMA_SLAVE_MMCIF0_RX,
.addr = 0xee200034,
.chcr = CHCR_RX(XMIT_SZ_32BIT),
.mid_rid = 0xd2,
}, {
.slave_id = SHDMA_SLAVE_MMCIF1_TX,
.addr = 0xee220034,
.chcr = CHCR_TX(XMIT_SZ_32BIT),
.mid_rid = 0xe1,
}, {
.slave_id = SHDMA_SLAVE_MMCIF1_RX,
.addr = 0xee220034,
.chcr = CHCR_RX(XMIT_SZ_32BIT),
.mid_rid = 0xe2,
},
};
#define DMAE_CHANNEL(a, b) \
{ \
.offset = (a) - 0x20, \
.dmars = (a) - 0x20 + 0x40, \
.chclr_bit = (b), \
.chclr_offset = 0x80 - 0x20, \
}
static const struct sh_dmae_channel dma_channels[] = {
DMAE_CHANNEL(0x8000, 0),
DMAE_CHANNEL(0x8080, 1),
DMAE_CHANNEL(0x8100, 2),
DMAE_CHANNEL(0x8180, 3),
DMAE_CHANNEL(0x8200, 4),
DMAE_CHANNEL(0x8280, 5),
DMAE_CHANNEL(0x8300, 6),
DMAE_CHANNEL(0x8380, 7),
DMAE_CHANNEL(0x8400, 8),
DMAE_CHANNEL(0x8480, 9),
DMAE_CHANNEL(0x8500, 10),
DMAE_CHANNEL(0x8580, 11),
DMAE_CHANNEL(0x8600, 12),
DMAE_CHANNEL(0x8680, 13),
DMAE_CHANNEL(0x8700, 14),
DMAE_CHANNEL(0x8780, 15),
DMAE_CHANNEL(0x8800, 16),
DMAE_CHANNEL(0x8880, 17),
DMAE_CHANNEL(0x8900, 18),
DMAE_CHANNEL(0x8980, 19),
};
static const struct sh_dmae_pdata dma_pdata = {
.slave = dma_slaves,
.slave_num = ARRAY_SIZE(dma_slaves),
.channel = dma_channels,
.channel_num = ARRAY_SIZE(dma_channels),
.ts_low_shift = TS_LOW_SHIFT,
.ts_low_mask = TS_LOW_BIT << TS_LOW_SHIFT,
.ts_high_shift = TS_HI_SHIFT,
.ts_high_mask = TS_HI_BIT << TS_HI_SHIFT,
.ts_shift = dma_ts_shift,
.ts_shift_num = ARRAY_SIZE(dma_ts_shift),
.dmaor_init = DMAOR_DME,
.chclr_present = 1,
.chclr_bitwise = 1,
};
static struct resource dma_resources[] = {
DEFINE_RES_MEM(0xe6700020, 0x89e0),
DEFINE_RES_IRQ_NAMED(gic_spi(220), "error_irq"),
{
/* IRQ for channels 0-19 */
.start = gic_spi(200),
.end = gic_spi(219),
.flags = IORESOURCE_IRQ,
},
};
#define r8a73a4_register_dmac() \
platform_device_register_resndata(&platform_bus, "sh-dma-engine", 0, \
dma_resources, ARRAY_SIZE(dma_resources), \
&dma_pdata, sizeof(dma_pdata))
void __init r8a73a4_add_standard_devices(void)
{
r8a73a4_add_dt_devices();
r8a73a4_register_irqc(0);
r8a73a4_register_irqc(1);
r8a73a4_register_thermal();
r8a73a4_register_dmac();
}
void __init r8a73a4_init_early(void)
{
#ifndef CONFIG_ARM_ARCH_TIMER
shmobile_setup_delay(1500, 2, 4); /* Cortex-A15 @ 1500MHz */
#endif
}
#ifdef CONFIG_USE_OF
static const char *r8a73a4_boards_compat_dt[] __initdata = {
"renesas,r8a73a4",
NULL,
};
DT_MACHINE_START(R8A73A4_DT, "Generic R8A73A4 (Flattened Device Tree)")
.init_early = r8a73a4_init_early,
.dt_compat = r8a73a4_boards_compat_dt,
MACHINE_END
#endif /* CONFIG_USE_OF */
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