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linux-sg2042/arch/arm/mach-shmobile/setup-emev2.c

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mach-shmobile: Emma Mobile EV2 SoC base support V3 This is V3 of the Emma Mobile EV2 SoC support. Included here is support for serial and timer devices which is just about enough to boot a kernel. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-16 14:44:58 +08:00
/*
* Emma Mobile EV2 processor support
*
* Copyright (C) 2012 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.
*/
#include <linux/kernel.h>
#include <linux/init.h>
ARM: shmobile: Get rid of redundant EMEV2 mach callbacks Update the EMEV2 specific SoC callbacks to get rid of the calls to of_clk_init() and of_platform_populate(). Those calls are by default executed by the functions in the shared ARM code in case the SoC specific mach callbacks are NULL. 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>
2014-06-05 13:32:12 +08:00
#include <linux/mm.h>
mach-shmobile: Emma Mobile EV2 SoC base support V3 This is V3 of the Emma Mobile EV2 SoC support. Included here is support for serial and timer devices which is just about enough to boot a kernel. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-16 14:44:58 +08:00
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
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"
mach-shmobile: Emma Mobile EV2 SoC base support V3 This is V3 of the Emma Mobile EV2 SoC support. Included here is support for serial and timer devices which is just about enough to boot a kernel. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-16 14:44:58 +08:00
mach-shmobile: Emma Mobile EV2 SMP support V3 This is V3 of Emma Mobile EV2 SMP support. At this point only the most basic form of SMP operation is supported. TWD and CPU Hotplug support is excluded. Tied to both the Emma Mobile EV2 and the KZM9D board due to the need to switch on board in platsmp.c and the newly introduced need for static mappings. The static mappings are needed to allow hardware acces early during boot when SMP is initialized. This early requirement forces us to also map in the SMU registers. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-16 14:45:25 +08:00
static struct map_desc emev2_io_desc[] __initdata = {
#ifdef CONFIG_SMP
/* 2M mapping for SCU + L2 controller */
{
.virtual = 0xf0000000,
.pfn = __phys_to_pfn(0x1e000000),
.length = SZ_2M,
.type = MT_DEVICE
},
#endif
};
ARM: shmobile: Remove EMEV2 header file There is no C board code left for the EMEV2 SoC, so get rid of the emev2.h include file to save some lines. While at it make functions static. Signed-off-by: Magnus Damm <damm@opensource.se> [horms+renesas@verge.net.au: Resolved conflict] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-02-17 15:35:08 +08:00
static void __init emev2_map_io(void)
mach-shmobile: Emma Mobile EV2 SMP support V3 This is V3 of Emma Mobile EV2 SMP support. At this point only the most basic form of SMP operation is supported. TWD and CPU Hotplug support is excluded. Tied to both the Emma Mobile EV2 and the KZM9D board due to the need to switch on board in platsmp.c and the newly introduced need for static mappings. The static mappings are needed to allow hardware acces early during boot when SMP is initialized. This early requirement forces us to also map in the SMU registers. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-16 14:45:25 +08:00
{
iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc));
}
ARM: make arrays containing machine compatible strings const The definition static const char *axxia_dt_match[] __initconst = { ... defines a changable array of constant strings. That is you must not do: *axxia_dt_match[0] = 'k'; but axxia_dt_match[0] = "different string"; is fine. So the annotation __initconst is wrong and yields a compiler error when other really const variables are added with __initconst. As the struct machine_desc member dt_compat is declared as const char *const *dt_compat; making the arrays const is the better alternative over changing all annotations to __initdata. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-02-19 04:01:45 +08:00
static const char *const emev2_boards_compat_dt[] __initconst = {
mach-shmobile: Emma Mobile EV2 DT support V3 This is EMEV2 DT support V3. The support is limited to whatever devices that are complied in the kernel. At this point we have UARTs handled by "em-uart" and a timer handled by "em-sti". Clocks and SMP are not supported. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-16 14:45:54 +08:00
"renesas,emev2",
NULL,
};
ARM: shmobile: Remove EMEV2 header file There is no C board code left for the EMEV2 SoC, so get rid of the emev2.h include file to save some lines. While at it make functions static. Signed-off-by: Magnus Damm <damm@opensource.se> [horms+renesas@verge.net.au: Resolved conflict] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-02-17 15:35:08 +08:00
extern struct smp_operations emev2_smp_ops;
mach-shmobile: Emma Mobile EV2 DT support V3 This is EMEV2 DT support V3. The support is limited to whatever devices that are complied in the kernel. At this point we have UARTs handled by "em-uart" and a timer handled by "em-sti". Clocks and SMP are not supported. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-16 14:45:54 +08:00
DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)")
ARM: SoC: convert shmobile SMP to SMP operations Convert shmobile SMP platforms to use struct smp_operations to provide their SMP and CPU hotplug operations. Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-09-08 20:15:22 +08:00
.smp = smp_ops(emev2_smp_ops),
ARM: shmobile: EMEV2 map_io update Update the EMEV2 struct map_desc to exclude the SMU and also include the ->map_io() callback in the DT version of EMEV2 board support. The EMEV2 SMP code can these days perform ioremap() early on without the SMU information in the io_desc[]. To correctly support SMP in case of DT-only board support then the ->map_io() callback is needed. Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-07-02 17:28:22 +08:00
.map_io = emev2_map_io,
ARM: shmobile: Use shmobile_init_delay() on EMEV2 Adjust EMEV2 to use shmobile_init_delay() together with CPU Frequency settings from the DTS. 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>
2014-06-05 13:32:04 +08:00
.init_early = shmobile_init_delay,
ARM: shmobile: Use ->init_late() in shared EMEV2 case Hook up shmobile_init_late() to enable various code such as suspend-to-RAM and CPUIdle. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-11-07 07:21:20 +08:00
.init_late = shmobile_init_late,
mach-shmobile: Emma Mobile EV2 DT support V3 This is EMEV2 DT support V3. The support is limited to whatever devices that are complied in the kernel. At this point we have UARTs handled by "em-uart" and a timer handled by "em-sti". Clocks and SMP are not supported. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-16 14:45:54 +08:00
.dt_compat = emev2_boards_compat_dt,
MACHINE_END