mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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8d3e17bab9
SH7372 can use DMA with the SCI serial driver. Add required slave IDs and slave descriptors. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
547 lines
12 KiB
C
547 lines
12 KiB
C
/*
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* sh7372 processor support
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*
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* Copyright (C) 2010 Magnus Damm
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* Copyright (C) 2008 Yoshihiro Shimoda
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/input.h>
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#include <linux/io.h>
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#include <linux/serial_sci.h>
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#include <linux/sh_dma.h>
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#include <linux/sh_intc.h>
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#include <linux/sh_timer.h>
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#include <mach/hardware.h>
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#include <mach/sh7372.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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/* SCIFA0 */
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static struct plat_sci_port scif0_platform_data = {
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.mapbase = 0xe6c40000,
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.flags = UPF_BOOT_AUTOCONF,
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.type = PORT_SCIFA,
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.irqs = { evt2irq(0x0c00), evt2irq(0x0c00),
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evt2irq(0x0c00), evt2irq(0x0c00) },
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};
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static struct platform_device scif0_device = {
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.name = "sh-sci",
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.id = 0,
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.dev = {
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.platform_data = &scif0_platform_data,
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},
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};
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/* SCIFA1 */
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static struct plat_sci_port scif1_platform_data = {
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.mapbase = 0xe6c50000,
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.flags = UPF_BOOT_AUTOCONF,
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.type = PORT_SCIFA,
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.irqs = { evt2irq(0x0c20), evt2irq(0x0c20),
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evt2irq(0x0c20), evt2irq(0x0c20) },
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};
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static struct platform_device scif1_device = {
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.name = "sh-sci",
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.id = 1,
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.dev = {
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.platform_data = &scif1_platform_data,
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},
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};
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/* SCIFA2 */
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static struct plat_sci_port scif2_platform_data = {
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.mapbase = 0xe6c60000,
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.flags = UPF_BOOT_AUTOCONF,
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.type = PORT_SCIFA,
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.irqs = { evt2irq(0x0c40), evt2irq(0x0c40),
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evt2irq(0x0c40), evt2irq(0x0c40) },
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};
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static struct platform_device scif2_device = {
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.name = "sh-sci",
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.id = 2,
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.dev = {
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.platform_data = &scif2_platform_data,
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},
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};
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/* SCIFA3 */
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static struct plat_sci_port scif3_platform_data = {
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.mapbase = 0xe6c70000,
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.flags = UPF_BOOT_AUTOCONF,
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.type = PORT_SCIFA,
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.irqs = { evt2irq(0x0c60), evt2irq(0x0c60),
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evt2irq(0x0c60), evt2irq(0x0c60) },
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};
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static struct platform_device scif3_device = {
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.name = "sh-sci",
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.id = 3,
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.dev = {
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.platform_data = &scif3_platform_data,
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},
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};
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/* SCIFA4 */
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static struct plat_sci_port scif4_platform_data = {
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.mapbase = 0xe6c80000,
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.flags = UPF_BOOT_AUTOCONF,
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.type = PORT_SCIFA,
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.irqs = { evt2irq(0x0d20), evt2irq(0x0d20),
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evt2irq(0x0d20), evt2irq(0x0d20) },
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};
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static struct platform_device scif4_device = {
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.name = "sh-sci",
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.id = 4,
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.dev = {
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.platform_data = &scif4_platform_data,
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},
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};
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/* SCIFA5 */
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static struct plat_sci_port scif5_platform_data = {
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.mapbase = 0xe6cb0000,
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.flags = UPF_BOOT_AUTOCONF,
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.type = PORT_SCIFA,
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.irqs = { evt2irq(0x0d40), evt2irq(0x0d40),
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evt2irq(0x0d40), evt2irq(0x0d40) },
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};
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static struct platform_device scif5_device = {
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.name = "sh-sci",
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.id = 5,
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.dev = {
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.platform_data = &scif5_platform_data,
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},
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};
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/* SCIFB */
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static struct plat_sci_port scif6_platform_data = {
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.mapbase = 0xe6c30000,
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.flags = UPF_BOOT_AUTOCONF,
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.type = PORT_SCIFB,
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.irqs = { evt2irq(0x0d60), evt2irq(0x0d60),
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evt2irq(0x0d60), evt2irq(0x0d60) },
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};
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static struct platform_device scif6_device = {
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.name = "sh-sci",
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.id = 6,
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.dev = {
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.platform_data = &scif6_platform_data,
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},
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};
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/* CMT */
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static struct sh_timer_config cmt10_platform_data = {
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.name = "CMT10",
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.channel_offset = 0x10,
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.timer_bit = 0,
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.clk = "cmt1",
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.clockevent_rating = 125,
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.clocksource_rating = 125,
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};
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static struct resource cmt10_resources[] = {
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[0] = {
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.name = "CMT10",
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.start = 0xe6138010,
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.end = 0xe613801b,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = evt2irq(0x0b00), /* CMT1_CMT10 */
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device cmt10_device = {
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.name = "sh_cmt",
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.id = 10,
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.dev = {
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.platform_data = &cmt10_platform_data,
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},
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.resource = cmt10_resources,
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.num_resources = ARRAY_SIZE(cmt10_resources),
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};
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/* I2C */
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static struct resource iic0_resources[] = {
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[0] = {
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.name = "IIC0",
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.start = 0xFFF20000,
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.end = 0xFFF20425 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = intcs_evt2irq(0xe00), /* IIC0_ALI0 */
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.end = intcs_evt2irq(0xe60), /* IIC0_DTEI0 */
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device iic0_device = {
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.name = "i2c-sh_mobile",
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.id = 0, /* "i2c0" clock */
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.num_resources = ARRAY_SIZE(iic0_resources),
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.resource = iic0_resources,
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};
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static struct resource iic1_resources[] = {
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[0] = {
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.name = "IIC1",
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.start = 0xE6C20000,
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.end = 0xE6C20425 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = evt2irq(0x780), /* IIC1_ALI1 */
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.end = evt2irq(0x7e0), /* IIC1_DTEI1 */
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device iic1_device = {
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.name = "i2c-sh_mobile",
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.id = 1, /* "i2c1" clock */
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.num_resources = ARRAY_SIZE(iic1_resources),
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.resource = iic1_resources,
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};
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/* DMA */
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/* Transmit sizes and respective CHCR register values */
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enum {
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XMIT_SZ_8BIT = 0,
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XMIT_SZ_16BIT = 1,
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XMIT_SZ_32BIT = 2,
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XMIT_SZ_64BIT = 7,
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XMIT_SZ_128BIT = 3,
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XMIT_SZ_256BIT = 4,
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XMIT_SZ_512BIT = 5,
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};
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/* log2(size / 8) - used to calculate number of transfers */
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#define TS_SHIFT { \
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[XMIT_SZ_8BIT] = 0, \
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[XMIT_SZ_16BIT] = 1, \
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[XMIT_SZ_32BIT] = 2, \
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[XMIT_SZ_64BIT] = 3, \
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[XMIT_SZ_128BIT] = 4, \
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[XMIT_SZ_256BIT] = 5, \
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[XMIT_SZ_512BIT] = 6, \
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}
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#define TS_INDEX2VAL(i) ((((i) & 3) << 3) | \
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(((i) & 0xc) << (20 - 2)))
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static const struct sh_dmae_slave_config sh7372_dmae_slaves[] = {
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{
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.slave_id = SHDMA_SLAVE_SCIF0_TX,
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.addr = 0xe6c40020,
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.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x21,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF0_RX,
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.addr = 0xe6c40024,
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.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x22,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF1_TX,
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.addr = 0xe6c50020,
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.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x25,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF1_RX,
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.addr = 0xe6c50024,
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.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x26,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF2_TX,
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.addr = 0xe6c60020,
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.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x29,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF2_RX,
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.addr = 0xe6c60024,
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.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x2a,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF3_TX,
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.addr = 0xe6c70020,
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.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x2d,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF3_RX,
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.addr = 0xe6c70024,
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.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x2e,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF4_TX,
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.addr = 0xe6c80020,
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.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x39,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF4_RX,
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.addr = 0xe6c80024,
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.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x3a,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF5_TX,
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.addr = 0xe6cb0020,
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.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x35,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF5_RX,
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.addr = 0xe6cb0024,
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.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x36,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF6_TX,
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.addr = 0xe6c30040,
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.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x3d,
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}, {
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.slave_id = SHDMA_SLAVE_SCIF6_RX,
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.addr = 0xe6c30060,
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.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_8BIT),
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.mid_rid = 0x3e,
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}, {
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.slave_id = SHDMA_SLAVE_SDHI0_TX,
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.addr = 0xe6850030,
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.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
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.mid_rid = 0xc1,
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}, {
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.slave_id = SHDMA_SLAVE_SDHI0_RX,
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.addr = 0xe6850030,
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.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
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.mid_rid = 0xc2,
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}, {
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.slave_id = SHDMA_SLAVE_SDHI1_TX,
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.addr = 0xe6860030,
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.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
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.mid_rid = 0xc9,
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}, {
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.slave_id = SHDMA_SLAVE_SDHI1_RX,
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.addr = 0xe6860030,
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.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
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.mid_rid = 0xca,
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}, {
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.slave_id = SHDMA_SLAVE_SDHI2_TX,
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.addr = 0xe6870030,
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.chcr = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
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.mid_rid = 0xcd,
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}, {
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.slave_id = SHDMA_SLAVE_SDHI2_RX,
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.addr = 0xe6870030,
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.chcr = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
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.mid_rid = 0xce,
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},
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};
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static const struct sh_dmae_channel sh7372_dmae_channels[] = {
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{
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.offset = 0,
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.dmars = 0,
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.dmars_bit = 0,
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}, {
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.offset = 0x10,
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.dmars = 0,
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.dmars_bit = 8,
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}, {
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.offset = 0x20,
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.dmars = 4,
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.dmars_bit = 0,
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}, {
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.offset = 0x30,
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.dmars = 4,
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.dmars_bit = 8,
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}, {
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.offset = 0x50,
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.dmars = 8,
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.dmars_bit = 0,
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}, {
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.offset = 0x60,
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.dmars = 8,
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.dmars_bit = 8,
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}
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};
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static const unsigned int ts_shift[] = TS_SHIFT;
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static struct sh_dmae_pdata dma_platform_data = {
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.slave = sh7372_dmae_slaves,
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.slave_num = ARRAY_SIZE(sh7372_dmae_slaves),
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.channel = sh7372_dmae_channels,
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.channel_num = ARRAY_SIZE(sh7372_dmae_channels),
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.ts_low_shift = 3,
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.ts_low_mask = 0x18,
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.ts_high_shift = (20 - 2), /* 2 bits for shifted low TS */
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.ts_high_mask = 0x00300000,
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.ts_shift = ts_shift,
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.ts_shift_num = ARRAY_SIZE(ts_shift),
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.dmaor_init = DMAOR_DME,
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};
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/* Resource order important! */
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static struct resource sh7372_dmae0_resources[] = {
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{
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/* Channel registers and DMAOR */
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.start = 0xfe008020,
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.end = 0xfe00808f,
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.flags = IORESOURCE_MEM,
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},
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{
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/* DMARSx */
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.start = 0xfe009000,
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.end = 0xfe00900b,
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.flags = IORESOURCE_MEM,
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},
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{
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/* DMA error IRQ */
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.start = 246,
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.end = 246,
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.flags = IORESOURCE_IRQ,
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},
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{
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/* IRQ for channels 0-5 */
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.start = 240,
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.end = 245,
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.flags = IORESOURCE_IRQ,
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},
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};
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/* Resource order important! */
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static struct resource sh7372_dmae1_resources[] = {
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{
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/* Channel registers and DMAOR */
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.start = 0xfe018020,
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.end = 0xfe01808f,
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.flags = IORESOURCE_MEM,
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},
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{
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/* DMARSx */
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.start = 0xfe019000,
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.end = 0xfe01900b,
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.flags = IORESOURCE_MEM,
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},
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{
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/* DMA error IRQ */
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.start = 254,
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.end = 254,
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.flags = IORESOURCE_IRQ,
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},
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{
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/* IRQ for channels 0-5 */
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.start = 248,
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.end = 253,
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.flags = IORESOURCE_IRQ,
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},
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};
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/* Resource order important! */
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static struct resource sh7372_dmae2_resources[] = {
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{
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/* Channel registers and DMAOR */
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.start = 0xfe028020,
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.end = 0xfe02808f,
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.flags = IORESOURCE_MEM,
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|
},
|
|
{
|
|
/* DMARSx */
|
|
.start = 0xfe029000,
|
|
.end = 0xfe02900b,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
/* DMA error IRQ */
|
|
.start = 262,
|
|
.end = 262,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
/* IRQ for channels 0-5 */
|
|
.start = 256,
|
|
.end = 261,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device dma0_device = {
|
|
.name = "sh-dma-engine",
|
|
.id = 0,
|
|
.resource = sh7372_dmae0_resources,
|
|
.num_resources = ARRAY_SIZE(sh7372_dmae0_resources),
|
|
.dev = {
|
|
.platform_data = &dma_platform_data,
|
|
},
|
|
};
|
|
|
|
static struct platform_device dma1_device = {
|
|
.name = "sh-dma-engine",
|
|
.id = 1,
|
|
.resource = sh7372_dmae1_resources,
|
|
.num_resources = ARRAY_SIZE(sh7372_dmae1_resources),
|
|
.dev = {
|
|
.platform_data = &dma_platform_data,
|
|
},
|
|
};
|
|
|
|
static struct platform_device dma2_device = {
|
|
.name = "sh-dma-engine",
|
|
.id = 2,
|
|
.resource = sh7372_dmae2_resources,
|
|
.num_resources = ARRAY_SIZE(sh7372_dmae2_resources),
|
|
.dev = {
|
|
.platform_data = &dma_platform_data,
|
|
},
|
|
};
|
|
|
|
static struct platform_device *sh7372_early_devices[] __initdata = {
|
|
&scif0_device,
|
|
&scif1_device,
|
|
&scif2_device,
|
|
&scif3_device,
|
|
&scif4_device,
|
|
&scif5_device,
|
|
&scif6_device,
|
|
&cmt10_device,
|
|
&iic0_device,
|
|
&iic1_device,
|
|
&dma0_device,
|
|
&dma1_device,
|
|
&dma2_device,
|
|
};
|
|
|
|
void __init sh7372_add_standard_devices(void)
|
|
{
|
|
platform_add_devices(sh7372_early_devices,
|
|
ARRAY_SIZE(sh7372_early_devices));
|
|
}
|
|
|
|
void __init sh7372_add_early_devices(void)
|
|
{
|
|
early_platform_add_devices(sh7372_early_devices,
|
|
ARRAY_SIZE(sh7372_early_devices));
|
|
}
|