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author | Stefano Babic <sbabic@denx.de> | 2017-06-29 11:16:06 +0300 |
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committer | Stefano Babic <sbabic@denx.de> | 2017-07-12 11:17:44 +0300 |
commit | 552a848e4f75e224515269a84a1155c84b762bc7 (patch) | |
tree | abef72c4452bf6934525563520690119bb8d1301 /arch/arm/mach-imx/mx6/mp.c | |
parent | f34ccce50a1805a6fdb2d1604ec4e40d79302455 (diff) | |
download | u-boot-552a848e4f75e224515269a84a1155c84b762bc7.tar.xz |
imx: reorganize IMX code as other SOCs
Change is consistent with other SOCs and it is in preparation
for adding SOMs. SOC's related files are moved from cpu/ to
mach-imx/<SOC>.
This change is also coherent with the structure in kernel.
Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Fabio Estevam <fabio.estevam@nxp.com>
CC: Akshay Bhat <akshaybhat@timesys.com>
CC: Ken Lin <Ken.Lin@advantech.com.tw>
CC: Marek Vasut <marek.vasut@gmail.com>
CC: Heiko Schocher <hs@denx.de>
CC: "Sébastien Szymanski" <sebastien.szymanski@armadeus.com>
CC: Christian Gmeiner <christian.gmeiner@gmail.com>
CC: Stefan Roese <sr@denx.de>
CC: Patrick Bruenn <p.bruenn@beckhoff.com>
CC: Troy Kisky <troy.kisky@boundarydevices.com>
CC: Nikita Kiryanov <nikita@compulab.co.il>
CC: Otavio Salvador <otavio@ossystems.com.br>
CC: "Eric Bénard" <eric@eukrea.com>
CC: Jagan Teki <jagan@amarulasolutions.com>
CC: Ye Li <ye.li@nxp.com>
CC: Peng Fan <peng.fan@nxp.com>
CC: Adrian Alonso <adrian.alonso@nxp.com>
CC: Alison Wang <b18965@freescale.com>
CC: Tim Harvey <tharvey@gateworks.com>
CC: Martin Donnelly <martin.donnelly@ge.com>
CC: Marcin Niestroj <m.niestroj@grinn-global.com>
CC: Lukasz Majewski <lukma@denx.de>
CC: Adam Ford <aford173@gmail.com>
CC: "Albert ARIBAUD (3ADEV)" <albert.aribaud@3adev.fr>
CC: Boris Brezillon <boris.brezillon@free-electrons.com>
CC: Soeren Moch <smoch@web.de>
CC: Richard Hu <richard.hu@technexion.com>
CC: Wig Cheng <wig.cheng@technexion.com>
CC: Vanessa Maegima <vanessa.maegima@nxp.com>
CC: Max Krummenacher <max.krummenacher@toradex.com>
CC: Stefan Agner <stefan.agner@toradex.com>
CC: Markus Niebel <Markus.Niebel@tq-group.com>
CC: Breno Lima <breno.lima@nxp.com>
CC: Francesco Montefoschi <francesco.montefoschi@udoo.org>
CC: Jaehoon Chung <jh80.chung@samsung.com>
CC: Scott Wood <oss@buserror.net>
CC: Joe Hershberger <joe.hershberger@ni.com>
CC: Anatolij Gustschin <agust@denx.de>
CC: Simon Glass <sjg@chromium.org>
CC: "Andrew F. Davis" <afd@ti.com>
CC: "Łukasz Majewski" <l.majewski@samsung.com>
CC: Patrice Chotard <patrice.chotard@st.com>
CC: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
CC: Hans de Goede <hdegoede@redhat.com>
CC: Masahiro Yamada <yamada.masahiro@socionext.com>
CC: Stephen Warren <swarren@nvidia.com>
CC: Andre Przywara <andre.przywara@arm.com>
CC: "Álvaro Fernández Rojas" <noltari@gmail.com>
CC: York Sun <york.sun@nxp.com>
CC: Xiaoliang Yang <xiaoliang.yang@nxp.com>
CC: Chen-Yu Tsai <wens@csie.org>
CC: George McCollister <george.mccollister@gmail.com>
CC: Sven Ebenfeld <sven.ebenfeld@gmail.com>
CC: Filip Brozovic <fbrozovic@gmail.com>
CC: Petr Kulhavy <brain@jikos.cz>
CC: Eric Nelson <eric@nelint.com>
CC: Bai Ping <ping.bai@nxp.com>
CC: Anson Huang <Anson.Huang@nxp.com>
CC: Sanchayan Maity <maitysanchayan@gmail.com>
CC: Lokesh Vutla <lokeshvutla@ti.com>
CC: Patrick Delaunay <patrick.delaunay@st.com>
CC: Gary Bisson <gary.bisson@boundarydevices.com>
CC: Alexander Graf <agraf@suse.de>
CC: u-boot@lists.denx.de
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Diffstat (limited to 'arch/arm/mach-imx/mx6/mp.c')
-rw-r--r-- | arch/arm/mach-imx/mx6/mp.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mx6/mp.c b/arch/arm/mach-imx/mx6/mp.c new file mode 100644 index 0000000000..e28018b26e --- /dev/null +++ b/arch/arm/mach-imx/mx6/mp.c @@ -0,0 +1,87 @@ +/* + * (C) Copyright 2014 + * Gabriel Huau <contact@huau-gabriel.fr> + * + * (C) Copyright 2009 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <linux/errno.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/imx-regs.h> + +#define MAX_CPUS 4 +static struct src *src = (struct src *)SRC_BASE_ADDR; + +static uint32_t cpu_reset_mask[MAX_CPUS] = { + 0, /* We don't really want to modify the cpu0 */ + SRC_SCR_CORE_1_RESET_MASK, + SRC_SCR_CORE_2_RESET_MASK, + SRC_SCR_CORE_3_RESET_MASK +}; + +static uint32_t cpu_ctrl_mask[MAX_CPUS] = { + 0, /* We don't really want to modify the cpu0 */ + SRC_SCR_CORE_1_ENABLE_MASK, + SRC_SCR_CORE_2_ENABLE_MASK, + SRC_SCR_CORE_3_ENABLE_MASK +}; + +int cpu_reset(int nr) +{ + /* Software reset of the CPU N */ + src->scr |= cpu_reset_mask[nr]; + return 0; +} + +int cpu_status(int nr) +{ + printf("core %d => %d\n", nr, !!(src->scr & cpu_ctrl_mask[nr])); + return 0; +} + +int cpu_release(int nr, int argc, char *const argv[]) +{ + uint32_t boot_addr; + + boot_addr = simple_strtoul(argv[0], NULL, 16); + + switch (nr) { + case 1: + src->gpr3 = boot_addr; + break; + case 2: + src->gpr5 = boot_addr; + break; + case 3: + src->gpr7 = boot_addr; + break; + default: + return 1; + } + + /* CPU N is ready to start */ + src->scr |= cpu_ctrl_mask[nr]; + + return 0; +} + +int is_core_valid(unsigned int core) +{ + uint32_t nr_cores = get_nr_cpus(); + + if (core > nr_cores) + return 0; + + return 1; +} + +int cpu_disable(int nr) +{ + /* Disable the CPU N */ + src->scr &= ~cpu_ctrl_mask[nr]; + return 0; +} |