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authorHisashi Nakamura <hisashi.nakamura.ak@renesas.com>2014-10-24 04:33:08 -0400
committerSimon Horman <horms+renesas@verge.net.au>2014-11-03 19:31:23 -0500
commita8d2ff39c7c4a5ce50df2a47d5f8523810dd4c29 (patch)
treeb2c270f882f383662889efc0d6bfc9d70a4d70b6
parent3794705aeb318c431c07072f04380c78cc5a84ac (diff)
ARM: shmobile: Separate APMU resource data into CPU dependant part
APMU resources are not common to all R-Car SoCs so don't share this data. A subsequent patch will correct the CPU cores for the r8a7791. Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
-rw-r--r--arch/arm/mach-shmobile/common.h5
-rw-r--r--arch/arm/mach-shmobile/platsmp-apmu.c27
-rw-r--r--arch/arm/mach-shmobile/platsmp-apmu.h32
-rw-r--r--arch/arm/mach-shmobile/smp-r8a7790.c16
-rw-r--r--arch/arm/mach-shmobile/smp-r8a7791.c16
5 files changed, 71 insertions, 25 deletions
diff --git a/arch/arm/mach-shmobile/common.h b/arch/arm/mach-shmobile/common.h
index 72087c79ad7b..309025efd4cf 100644
--- a/arch/arm/mach-shmobile/common.h
+++ b/arch/arm/mach-shmobile/common.h
@@ -19,11 +19,6 @@ extern void shmobile_boot_scu(void);
19extern void shmobile_smp_scu_prepare_cpus(unsigned int max_cpus); 19extern void shmobile_smp_scu_prepare_cpus(unsigned int max_cpus);
20extern void shmobile_smp_scu_cpu_die(unsigned int cpu); 20extern void shmobile_smp_scu_cpu_die(unsigned int cpu);
21extern int shmobile_smp_scu_cpu_kill(unsigned int cpu); 21extern int shmobile_smp_scu_cpu_kill(unsigned int cpu);
22extern void shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus);
23extern int shmobile_smp_apmu_boot_secondary(unsigned int cpu,
24 struct task_struct *idle);
25extern void shmobile_smp_apmu_cpu_die(unsigned int cpu);
26extern int shmobile_smp_apmu_cpu_kill(unsigned int cpu);
27struct clk; 22struct clk;
28extern int shmobile_clk_init(void); 23extern int shmobile_clk_init(void);
29extern void shmobile_handle_irq_intc(struct pt_regs *); 24extern void shmobile_handle_irq_intc(struct pt_regs *);
diff --git a/arch/arm/mach-shmobile/platsmp-apmu.c b/arch/arm/mach-shmobile/platsmp-apmu.c
index 2c06810d3a70..f483b560b066 100644
--- a/arch/arm/mach-shmobile/platsmp-apmu.c
+++ b/arch/arm/mach-shmobile/platsmp-apmu.c
@@ -1,6 +1,7 @@
1/* 1/*
2 * SMP support for SoCs with APMU 2 * SMP support for SoCs with APMU
3 * 3 *
4 * Copyright (C) 2014 Renesas Electronics Corporation
4 * Copyright (C) 2013 Magnus Damm 5 * Copyright (C) 2013 Magnus Damm
5 * 6 *
6 * This program is free software; you can redistribute it and/or modify 7 * This program is free software; you can redistribute it and/or modify
@@ -22,6 +23,7 @@
22#include <asm/smp_plat.h> 23#include <asm/smp_plat.h>
23#include <asm/suspend.h> 24#include <asm/suspend.h>
24#include "common.h" 25#include "common.h"
26#include "platsmp-apmu.h"
25 27
26static struct { 28static struct {
27 void __iomem *iomem; 29 void __iomem *iomem;
@@ -83,28 +85,15 @@ static void apmu_init_cpu(struct resource *res, int cpu, int bit)
83 pr_debug("apmu ioremap %d %d %pr\n", cpu, bit, res); 85 pr_debug("apmu ioremap %d %d %pr\n", cpu, bit, res);
84} 86}
85 87
86static struct { 88static void apmu_parse_cfg(void (*fn)(struct resource *res, int cpu, int bit),
87 struct resource iomem; 89 struct rcar_apmu_config *apmu_config, int num)
88 int cpus[4];
89} apmu_config[] = {
90 {
91 .iomem = DEFINE_RES_MEM(0xe6152000, 0x88),
92 .cpus = { 0, 1, 2, 3 },
93 },
94 {
95 .iomem = DEFINE_RES_MEM(0xe6151000, 0x88),
96 .cpus = { 0x100, 0x101, 0x102, 0x103 },
97 }
98};
99
100static void apmu_parse_cfg(void (*fn)(struct resource *res, int cpu, int bit))
101{ 90{
102 u32 id; 91 u32 id;
103 int k; 92 int k;
104 int bit, index; 93 int bit, index;
105 bool is_allowed; 94 bool is_allowed;
106 95
107 for (k = 0; k < ARRAY_SIZE(apmu_config); k++) { 96 for (k = 0; k < num; k++) {
108 /* only enable the cluster that includes the boot CPU */ 97 /* only enable the cluster that includes the boot CPU */
109 is_allowed = false; 98 is_allowed = false;
110 for (bit = 0; bit < ARRAY_SIZE(apmu_config[k].cpus); bit++) { 99 for (bit = 0; bit < ARRAY_SIZE(apmu_config[k].cpus); bit++) {
@@ -128,14 +117,16 @@ static void apmu_parse_cfg(void (*fn)(struct resource *res, int cpu, int bit))
128 } 117 }
129} 118}
130 119
131void __init shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus) 120void __init shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus,
121 struct rcar_apmu_config *apmu_config,
122 int num)
132{ 123{
133 /* install boot code shared by all CPUs */ 124 /* install boot code shared by all CPUs */
134 shmobile_boot_fn = virt_to_phys(shmobile_smp_boot); 125 shmobile_boot_fn = virt_to_phys(shmobile_smp_boot);
135 shmobile_boot_arg = MPIDR_HWID_BITMASK; 126 shmobile_boot_arg = MPIDR_HWID_BITMASK;
136 127
137 /* perform per-cpu setup */ 128 /* perform per-cpu setup */
138 apmu_parse_cfg(apmu_init_cpu); 129 apmu_parse_cfg(apmu_init_cpu, apmu_config, num);
139} 130}
140 131
141#ifdef CONFIG_SMP 132#ifdef CONFIG_SMP
diff --git a/arch/arm/mach-shmobile/platsmp-apmu.h b/arch/arm/mach-shmobile/platsmp-apmu.h
new file mode 100644
index 000000000000..76512c9a2545
--- /dev/null
+++ b/arch/arm/mach-shmobile/platsmp-apmu.h
@@ -0,0 +1,32 @@
1/*
2 * rmobile apmu definition
3 *
4 * Copyright (C) 2014 Renesas Electronics Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16#ifndef PLATSMP_APMU_H
17#define PLATSMP_APMU_H
18
19struct rcar_apmu_config {
20 struct resource iomem;
21 int cpus[4];
22};
23
24extern void shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus,
25 struct rcar_apmu_config *apmu_config,
26 int num);
27extern int shmobile_smp_apmu_boot_secondary(unsigned int cpu,
28 struct task_struct *idle);
29extern void shmobile_smp_apmu_cpu_die(unsigned int cpu);
30extern int shmobile_smp_apmu_cpu_kill(unsigned int cpu);
31
32#endif /* PLATSMP_APMU_H */
diff --git a/arch/arm/mach-shmobile/smp-r8a7790.c b/arch/arm/mach-shmobile/smp-r8a7790.c
index 2311694636e1..9c3da1345b8b 100644
--- a/arch/arm/mach-shmobile/smp-r8a7790.c
+++ b/arch/arm/mach-shmobile/smp-r8a7790.c
@@ -21,6 +21,7 @@
21#include <asm/smp_plat.h> 21#include <asm/smp_plat.h>
22 22
23#include "common.h" 23#include "common.h"
24#include "platsmp-apmu.h"
24#include "pm-rcar.h" 25#include "pm-rcar.h"
25#include "r8a7790.h" 26#include "r8a7790.h"
26 27
@@ -34,10 +35,23 @@ static struct rcar_sysc_ch r8a7790_ca7_scu = {
34 .isr_bit = 21, /* CA7-SCU */ 35 .isr_bit = 21, /* CA7-SCU */
35}; 36};
36 37
38static struct rcar_apmu_config r8a7790_apmu_config[] = {
39 {
40 .iomem = DEFINE_RES_MEM(0xe6152000, 0x88),
41 .cpus = { 0, 1, 2, 3 },
42 },
43 {
44 .iomem = DEFINE_RES_MEM(0xe6151000, 0x88),
45 .cpus = { 0x100, 0x0101, 0x102, 0x103 },
46 }
47};
48
37static void __init r8a7790_smp_prepare_cpus(unsigned int max_cpus) 49static void __init r8a7790_smp_prepare_cpus(unsigned int max_cpus)
38{ 50{
39 /* let APMU code install data related to shmobile_boot_vector */ 51 /* let APMU code install data related to shmobile_boot_vector */
40 shmobile_smp_apmu_prepare_cpus(max_cpus); 52 shmobile_smp_apmu_prepare_cpus(max_cpus,
53 r8a7790_apmu_config,
54 ARRAY_SIZE(r8a7790_apmu_config));
41 55
42 /* turn on power to SCU */ 56 /* turn on power to SCU */
43 r8a7790_pm_init(); 57 r8a7790_pm_init();
diff --git a/arch/arm/mach-shmobile/smp-r8a7791.c b/arch/arm/mach-shmobile/smp-r8a7791.c
index f743386166fb..96e392c2573c 100644
--- a/arch/arm/mach-shmobile/smp-r8a7791.c
+++ b/arch/arm/mach-shmobile/smp-r8a7791.c
@@ -21,13 +21,27 @@
21#include <asm/smp_plat.h> 21#include <asm/smp_plat.h>
22 22
23#include "common.h" 23#include "common.h"
24#include "platsmp-apmu.h"
24#include "r8a7791.h" 25#include "r8a7791.h"
25#include "rcar-gen2.h" 26#include "rcar-gen2.h"
26 27
28static struct rcar_apmu_config r8a7791_apmu_config[] = {
29 {
30 .iomem = DEFINE_RES_MEM(0xe6152000, 0x88),
31 .cpus = { 0, 1, 2, 3 },
32 },
33 {
34 .iomem = DEFINE_RES_MEM(0xe6151000, 0x88),
35 .cpus = { 0x100, 0x0101, 0x102, 0x103 },
36 }
37};
38
27static void __init r8a7791_smp_prepare_cpus(unsigned int max_cpus) 39static void __init r8a7791_smp_prepare_cpus(unsigned int max_cpus)
28{ 40{
29 /* let APMU code install data related to shmobile_boot_vector */ 41 /* let APMU code install data related to shmobile_boot_vector */
30 shmobile_smp_apmu_prepare_cpus(max_cpus); 42 shmobile_smp_apmu_prepare_cpus(max_cpus,
43 r8a7791_apmu_config,
44 ARRAY_SIZE(r8a7791_apmu_config));
31 45
32 r8a7791_pm_init(); 46 r8a7791_pm_init();
33} 47}