Date: Fri, 9 May 2014 05:39:57 +0000 (UTC) From: Ganbold Tsagaankhuu <ganbold@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r265739 - in head/sys/arm: conf rockchip Message-ID: <201405090539.s495dvCO053265@svn.freebsd.org>
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Author: ganbold Date: Fri May 9 05:39:57 2014 New Revision: 265739 URL: http://svnweb.freebsd.org/changeset/base/265739 Log: Add the codes for enabling CPU cores of Rockchip RK3188 SoC. Enable SMP for Radxa Rock board. Approved by: stas (mentor) Added: head/sys/arm/rockchip/rk30xx_mp.c (contents, props changed) Modified: head/sys/arm/conf/RADXA head/sys/arm/rockchip/files.rk30xx head/sys/arm/rockchip/rk30xx_machdep.c Modified: head/sys/arm/conf/RADXA ============================================================================== --- head/sys/arm/conf/RADXA Fri May 9 04:49:48 2014 (r265738) +++ head/sys/arm/conf/RADXA Fri May 9 05:39:57 2014 (r265739) @@ -121,3 +121,4 @@ options FDT options FDT_DTB_STATIC makeoptions FDT_DTS_FILE=rk3188-radxa.dts +options SMP # Enable multiple cores Modified: head/sys/arm/rockchip/files.rk30xx ============================================================================== --- head/sys/arm/rockchip/files.rk30xx Fri May 9 04:49:48 2014 (r265738) +++ head/sys/arm/rockchip/files.rk30xx Fri May 9 05:39:57 2014 (r265739) @@ -19,3 +19,4 @@ arm/rockchip/rk30xx_grf.c standard arm/rockchip/rk30xx_wdog.c standard arm/rockchip/rk30xx_gpio.c optional gpio dev/usb/controller/dwc_otg_fdt.c optional dwcotg +arm/rockchip/rk30xx_mp.c optional smp Modified: head/sys/arm/rockchip/rk30xx_machdep.c ============================================================================== --- head/sys/arm/rockchip/rk30xx_machdep.c Fri May 9 04:49:48 2014 (r265738) +++ head/sys/arm/rockchip/rk30xx_machdep.c Fri May 9 05:39:57 2014 (r265739) @@ -85,6 +85,7 @@ int initarm_devmap_init(void) { + arm_devmap_add_entry(0x10000000, 0x00200000); arm_devmap_add_entry(0x20000000, 0x00100000); return (0); Added: head/sys/arm/rockchip/rk30xx_mp.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm/rockchip/rk30xx_mp.c Fri May 9 05:39:57 2014 (r265739) @@ -0,0 +1,192 @@ +/*- + * Copyright (c) 2014 Ganbold Tsagaankhuu <ganbold@freebsd.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/kernel.h> +#include <sys/lock.h> +#include <sys/mutex.h> +#include <sys/smp.h> + +#include <machine/smp.h> +#include <machine/fdt.h> +#include <machine/intr.h> + +#define SCU_PHYSBASE 0x1013c000 +#define SCU_SIZE 0x100 + +#define SCU_CONTROL_REG 0x00 +#define SCU_CONTROL_ENABLE (1 << 0) +#define SCU_STANDBY_EN (1 << 5) +#define SCU_CONFIG_REG 0x04 +#define SCU_CONFIG_REG_NCPU_MASK 0x03 +#define SCU_CPUPOWER_REG 0x08 +#define SCU_INV_TAGS_REG 0x0c + +#define SCU_FILTER_START_REG 0x10 +#define SCU_FILTER_END_REG 0x14 +#define SCU_SECURE_ACCESS_REG 0x18 +#define SCU_NONSECURE_ACCESS_REG 0x1c + +#define IMEM_PHYSBASE 0x10080000 +#define IMEM_SIZE 0x20 + +#define PMU_PHYSBASE 0x20004000 +#define PMU_SIZE 0x100 +#define PMU_PWRDN_CON 0x08 +#define PMU_PWRDN_SCU (1 << 4) + +extern char *mpentry_addr; +static void rk30xx_boot2(void); + +static void +rk30xx_boot2(void) +{ + + __asm __volatile( + "ldr pc, 1f\n" + ".globl mpentry_addr\n" + "mpentry_addr:\n" + "1: .space 4\n"); +} + +void +platform_mp_init_secondary(void) +{ + + gic_init_secondary(); +} + +void +platform_mp_setmaxid(void) +{ + bus_space_handle_t scu; + int ncpu; + uint32_t val; + + if (mp_ncpus != 0) + return; + + if (bus_space_map(fdtbus_bs_tag, SCU_PHYSBASE, SCU_SIZE, 0, &scu) != 0) + panic("Could not map the SCU"); + + val = bus_space_read_4(fdtbus_bs_tag, scu, SCU_CONFIG_REG); + ncpu = (val & SCU_CONFIG_REG_NCPU_MASK) + 1; + bus_space_unmap(fdtbus_bs_tag, scu, SCU_SIZE); + + mp_ncpus = ncpu; + mp_maxid = ncpu - 1; +} + +int +platform_mp_probe(void) +{ + + if (mp_ncpus == 0) + platform_mp_setmaxid(); + + return (mp_ncpus > 1); +} + +void +platform_mp_start_ap(void) +{ + bus_space_handle_t scu; + bus_space_handle_t imem; + bus_space_handle_t pmu; + uint32_t val; + int i; + + if (bus_space_map(fdtbus_bs_tag, SCU_PHYSBASE, SCU_SIZE, 0, &scu) != 0) + panic("Could not map the SCU"); + if (bus_space_map(fdtbus_bs_tag, IMEM_PHYSBASE, + IMEM_SIZE, 0, &imem) != 0) + panic("Could not map the IMEM"); + if (bus_space_map(fdtbus_bs_tag, PMU_PHYSBASE, PMU_SIZE, 0, &pmu) != 0) + panic("Could not map the PMU"); + + /* + * Invalidate SCU cache tags. The 0x0000ffff constant invalidates all + * ways on all cores 0-3. Per the ARM docs, it's harmless to write to + * the bits for cores that are not present. + */ + bus_space_write_4(fdtbus_bs_tag, scu, SCU_INV_TAGS_REG, 0x0000ffff); + + /* Make sure all cores except the first are off */ + val = bus_space_read_4(fdtbus_bs_tag, pmu, PMU_PWRDN_CON); + for (i = 1; i < mp_ncpus; i++) + val |= 1 << i; + bus_space_write_4(fdtbus_bs_tag, pmu, PMU_PWRDN_CON, val); + + /* Enable SCU power domain */ + val = bus_space_read_4(fdtbus_bs_tag, pmu, PMU_PWRDN_CON); + val &= ~PMU_PWRDN_SCU; + bus_space_write_4(fdtbus_bs_tag, pmu, PMU_PWRDN_CON, val); + + /* Enable SCU */ + val = bus_space_read_4(fdtbus_bs_tag, scu, SCU_CONTROL_REG); + bus_space_write_4(fdtbus_bs_tag, scu, SCU_CONTROL_REG, + val | SCU_CONTROL_ENABLE); + + /* + * Cores will execute the code which resides at the start of + * the on-chip bootram/sram after power-on. This sram region + * should be reserved and the trampoline code that directs + * the core to the real startup code in ram should be copied + * into this sram region. + * + * First set boot function for the sram code. + */ + mpentry_addr = (char *)pmap_kextract((vm_offset_t)mpentry); + + /* Copy trampoline to sram, that runs during startup of the core */ + bus_space_write_region_4(fdtbus_bs_tag, imem, 0, + (uint32_t *)&rk30xx_boot2, 8); + + cpu_idcache_wbinv_all(); + cpu_l2cache_wbinv_all(); + + /* Start all cores */ + val = bus_space_read_4(fdtbus_bs_tag, pmu, PMU_PWRDN_CON); + for (i = 1; i < mp_ncpus; i++) + val &= ~(1 << i); + bus_space_write_4(fdtbus_bs_tag, pmu, PMU_PWRDN_CON, val); + + armv7_sev(); + + bus_space_unmap(fdtbus_bs_tag, scu, SCU_SIZE); + bus_space_unmap(fdtbus_bs_tag, imem, IMEM_SIZE); + bus_space_unmap(fdtbus_bs_tag, pmu, PMU_SIZE); +} + +void +platform_ipi_send(cpuset_t cpus, u_int ipi) +{ + + pic_ipi_send(cpus, ipi); +}
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