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OpenCloudOS-Kernel/arch/arm/mach-shmobile/setup-r8a7740.c

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ARM: shmobile: convert to SPDX identifier Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-06-14 09:56:06 +08:00
// SPDX-License-Identifier: GPL-2.0
ARM: mach-shmobile: R-Mobile A1 support. This adds preliminary support for the R8A7740 (R-Mobile A1) CPU Timer, serial, gic, clock are supported at this point. This patch is based on v0.1 manual Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-11 10:45:52 +08:00
/*
* R8A7740 processor support
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Copyright (C) 2011 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*/
#include <linux/kernel.h>
#include <linux/init.h>
ARM: mach-shmobile: r8a7740: add i2c support This patch adds I2C support to r8a7740 CPU which has lasting errata on I2C I/O pad reset. This patch is including work-around. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-11 10:46:23 +08:00
#include <linux/io.h>
ARM: shmobile: r8a7740: move r8a7740_init_irq_of() to setup This patch moves r8a7740_init_irq_of() to setup code, and remove intc-r8a7740 Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-08-02 14:39:44 +08:00
#include <linux/irqchip.h>
#include <linux/irqchip/arm-gic.h>
ARM: shmobile: Move r8a7740.h Change location of r8a7740.h so it can be included as "r8a7740.h" instead of the old style <mach/r8a7740.h> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-06-21 00:53:03 +08:00
ARM: mach-shmobile: r8a7740 map_io and init_early update Update the r8a7740 SoC and the Bonito board to make use of the functions r8a7740_map_io() and r8a7740_add_early_devices(). Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-02-29 20:37:35 +08:00
#include <asm/mach/map.h>
ARM: mach-shmobile: R-Mobile A1 support. This adds preliminary support for the R8A7740 (R-Mobile A1) CPU Timer, serial, gic, clock are supported at this point. This patch is based on v0.1 manual Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-11 10:45:52 +08:00
#include <asm/mach/arch.h>
ARM: mach-shmobile: r8a7740 and Bonito timer rework Copy the SoC specific timer code from Bonito board code to r8a7740 setup code. This makes is possible to share the SoC specific timer code across boards. The Bonito specific timer setup code tied to the FPGA is kept as-is. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-03-06 16:36:53 +08:00
#include <asm/mach/time.h>
ARM: shmobile: Move r8a7740.h Change location of r8a7740.h so it can be included as "r8a7740.h" instead of the old style <mach/r8a7740.h> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-06-21 00:53:03 +08:00
ARM: shmobile: Move common.h Change location for common.h so it can be used as #include "common.h" instead of the old style #include <mach/common.h>. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-06-17 15:47:37 +08:00
#include "common.h"
ARM: mach-shmobile: R-Mobile A1 support. This adds preliminary support for the R8A7740 (R-Mobile A1) CPU Timer, serial, gic, clock are supported at this point. This patch is based on v0.1 manual Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-11 10:45:52 +08:00
ARM: shmobile: r8a7740: add MERAM work-around r8a7740 chip has lasting errata on MERAM buffer, and this patch adds its work-around on setup-r8a7740.c It solved CEU/VIO6C/2D-DMAC/VCP1/VPU5F/JPU/DISP memroy access error. But MERAM driver can't control this issue, since this work-around requires access to non-MERAM register address. So, This it will be called as board specific code at this point. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Simon Horman <horms@verge.net.au> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-12 17:36:21 +08:00
/*
* r8a7740 chip has lasting errata on MERAM buffer.
* this is work-around for it.
* see
* "Media RAM (MERAM)" on r8a7740 documentation
*/
#define MEBUFCNTR 0xFE950098
ARM: shmobile: Remove legacy SoC code for R-Mobile A1 The last user of the R-Mobile A1 (r8a7740) legacy SoC code was the Armadillo-800 EVA legacy board code, which has been removed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> [horms: resolved trivial conflicts with v4.2-rc1] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-06-17 17:31:24 +08:00
static void __init r8a7740_meram_workaround(void)
ARM: shmobile: r8a7740: add MERAM work-around r8a7740 chip has lasting errata on MERAM buffer, and this patch adds its work-around on setup-r8a7740.c It solved CEU/VIO6C/2D-DMAC/VCP1/VPU5F/JPU/DISP memroy access error. But MERAM driver can't control this issue, since this work-around requires access to non-MERAM register address. So, This it will be called as board specific code at this point. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Simon Horman <horms@verge.net.au> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-12 17:36:21 +08:00
{
void __iomem *reg;
remove ioremap_nocache and devm_ioremap_nocache ioremap has provided non-cached semantics by default since the Linux 2.6 days, so remove the additional ioremap_nocache interface. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2020-01-06 16:43:50 +08:00
reg = ioremap(MEBUFCNTR, 4);
ARM: shmobile: r8a7740: add MERAM work-around r8a7740 chip has lasting errata on MERAM buffer, and this patch adds its work-around on setup-r8a7740.c It solved CEU/VIO6C/2D-DMAC/VCP1/VPU5F/JPU/DISP memroy access error. But MERAM driver can't control this issue, since this work-around requires access to non-MERAM register address. So, This it will be called as board specific code at this point. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Simon Horman <horms@verge.net.au> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-12 17:36:21 +08:00
if (reg) {
iowrite32(0x01600164, reg);
iounmap(reg);
}
}
ARM: shmobile: Remove legacy SoC code for R-Mobile A1 The last user of the R-Mobile A1 (r8a7740) legacy SoC code was the Armadillo-800 EVA legacy board code, which has been removed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> [horms: resolved trivial conflicts with v4.2-rc1] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-06-17 17:31:24 +08:00
static void __init r8a7740_init_irq_of(void)
ARM: shmobile: r8a7740: move r8a7740_init_irq_of() to setup This patch moves r8a7740_init_irq_of() to setup code, and remove intc-r8a7740 Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-08-02 14:39:44 +08:00
{
remove ioremap_nocache and devm_ioremap_nocache ioremap has provided non-cached semantics by default since the Linux 2.6 days, so remove the additional ioremap_nocache interface. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2020-01-06 16:43:50 +08:00
void __iomem *intc_prio_base = ioremap(0xe6900010, 0x10);
void __iomem *intc_msk_base = ioremap(0xe6900040, 0x10);
void __iomem *pfc_inta_ctrl = ioremap(0xe605807c, 0x4);
ARM: shmobile: r8a7740: move r8a7740_init_irq_of() to setup This patch moves r8a7740_init_irq_of() to setup code, and remove intc-r8a7740 Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-08-02 14:39:44 +08:00
irqchip_init();
/* route signals to GIC */
iowrite32(0x0, pfc_inta_ctrl);
/*
* To mask the shared interrupt to SPI 149 we must ensure to set
* PRIO *and* MASK. Else we run into IRQ floods when registering
* the intc_irqpin devices
*/
iowrite32(0x0, intc_prio_base + 0x0);
iowrite32(0x0, intc_prio_base + 0x4);
iowrite32(0x0, intc_prio_base + 0x8);
iowrite32(0x0, intc_prio_base + 0xc);
iowrite8(0xff, intc_msk_base + 0x0);
iowrite8(0xff, intc_msk_base + 0x4);
iowrite8(0xff, intc_msk_base + 0x8);
iowrite8(0xff, intc_msk_base + 0xc);
iounmap(intc_prio_base);
iounmap(intc_msk_base);
iounmap(pfc_inta_ctrl);
}
ARM: shmobile: r8a7740: Prepare for reference DT setup We need three steps to prepare for the new Armadillo reference DT board code: - Split the device list into r8a7740_early_devices used by the old platform data setup (board-armadillo.c) and r8a7740_devices_dt used by both setup variants. - Introduce new r8a7740_init_delay() to be more flexible about calling shmobile_setup_delay(). - For the generic r8a7740 support, we switch to device tree setup for the GIC, the irqpin devices and the I2C controllers. This is slightly similar to commit 3b00f9342623a5ebc "ARM: shmobile: sh73a0: Do not use early devices with DT reference" Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-17 18:34:05 +08:00
static void __init r8a7740_generic_init(void)
{
ARM: shmobile: r8a7740: Multiplatform support Enable r8a7740 Multiplatform support for the generic r8a7740 machine vector. No board support is enabled, and the board code for Armadillo 800 EVA DT Reference is left by itself. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-08-25 11:36:53 +08:00
r8a7740_meram_workaround();
ARM: shmobile: r8a7740: Prepare for reference DT setup We need three steps to prepare for the new Armadillo reference DT board code: - Split the device list into r8a7740_early_devices used by the old platform data setup (board-armadillo.c) and r8a7740_devices_dt used by both setup variants. - Introduce new r8a7740_init_delay() to be more flexible about calling shmobile_setup_delay(). - For the generic r8a7740 support, we switch to device tree setup for the GIC, the irqpin devices and the I2C controllers. This is slightly similar to commit 3b00f9342623a5ebc "ARM: shmobile: sh73a0: Do not use early devices with DT reference" Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-17 18:34:05 +08:00
}
ARM: appropriate __init annotation for const data Init data marked const should be annotated with __initconst for correctness and not __initdata. In some cases the array gathering references to that data has to be marked const as well. This fixes LTO builds that otherwise fail with section mismatch errors. Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-28 06:27:52 +08:00
static const char *const r8a7740_boards_compat_dt[] __initconst = {
ARM: mach-shmobile: r8a7740 generic board support via DT Add generic DT board support for the r8a7740 SoC. SCIF serial ports and timers are kept as regular platform devices. Other on-chip and on-board devices should be configured via the device tree. At this point there is no interrupt controller support in place but such code will be added over time when proper IRQ domain support has been added to INTC. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-06 16:08:07 +08:00
"renesas,r8a7740",
NULL,
};
ARM: shmobile: r8a7740: fixup DT machine desc name typo r8a7740 machine desc name should be R8A7740, not SH7372 Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2012-10-22 13:15:13 +08:00
DT_MACHINE_START(R8A7740_DT, "Generic R8A7740 (Flattened Device Tree)")
ARM: shmobile: r8a7740: Migrate to generic l2c OF initialization Migrate the generic r8a7740 platform from calling l2x0_of_init() to the generic l2c OF initialization. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-11-23 21:56:01 +08:00
.l2c_aux_val = 0,
.l2c_aux_mask = ~0,
ARM: shmobile: Use r8a7740 DT CPU Frequency in common case Convert the common C-code-less r8a7740 DT board support to use shmobile_init_delay() to be able to migrate away from per-SoC delay setup functions. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Tested-by: Geert Uytterhoeven <geert@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-08 07:32:38 +08:00
.init_early = shmobile_init_delay,
ARM: shmobile: r8a7740: Prepare for reference DT setup We need three steps to prepare for the new Armadillo reference DT board code: - Split the device list into r8a7740_early_devices used by the old platform data setup (board-armadillo.c) and r8a7740_devices_dt used by both setup variants. - Introduce new r8a7740_init_delay() to be more flexible about calling shmobile_setup_delay(). - For the generic r8a7740 support, we switch to device tree setup for the GIC, the irqpin devices and the I2C controllers. This is slightly similar to commit 3b00f9342623a5ebc "ARM: shmobile: sh73a0: Do not use early devices with DT reference" Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-17 18:34:05 +08:00
.init_irq = r8a7740_init_irq_of,
.init_machine = r8a7740_generic_init,
ARM: shmobile: Use shmobile_init_late() on r8a7740 Hook up ->init_late for r8a7740 to initialize Suspend-to-RAM and CPUIdle in case of C-code less board support for r8a7740. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-12 07:10:50 +08:00
.init_late = shmobile_init_late,
ARM: mach-shmobile: r8a7740 generic board support via DT Add generic DT board support for the r8a7740 SoC. SCIF serial ports and timers are kept as regular platform devices. Other on-chip and on-board devices should be configured via the device tree. At this point there is no interrupt controller support in place but such code will be added over time when proper IRQ domain support has been added to INTC. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-06 16:08:07 +08:00
.dt_compat = r8a7740_boards_compat_dt,
MACHINE_END