cpu_table was used to distinguish between different Exynos4 and 5 SoCs
and assign the the initialization and io mapping pointers based on type.
exynos_init is dummy and no longer needed as we do a DT based booting.
By having a common io mapping function we can get rid of the whole
table and avoid populating it for every SoC.
Tested on Exynos4210, 5250 and 5420 based boards.
Signed-off-by: Sachin Kamat
---
arch/arm/mach-exynos/common.c | 93 -
1 file changed, 17 insertions(+), 76 deletions(-)
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index f18be40e5b21..02d0aaa7af59 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -48,55 +48,7 @@
#define L2_AUX_VAL 0x7C470001
#define L2_AUX_MASK 0xC200
-static const char name_exynos4210[] = "EXYNOS4210";
-static const char name_exynos4212[] = "EXYNOS4212";
-static const char name_exynos4412[] = "EXYNOS4412";
-static const char name_exynos5250[] = "EXYNOS5250";
-static const char name_exynos5420[] = "EXYNOS5420";
-static const char name_exynos5440[] = "EXYNOS5440";
-
-static void exynos4_map_io(void);
-static void exynos5_map_io(void);
-static int exynos_init(void);
-
-static struct cpu_table cpu_ids[] __initdata = {
- {
- .idcode = EXYNOS4210_CPU_ID,
- .idmask = EXYNOS4_CPU_MASK,
- .map_io = exynos4_map_io,
- .init = exynos_init,
- .name = name_exynos4210,
- }, {
- .idcode = EXYNOS4212_CPU_ID,
- .idmask = EXYNOS4_CPU_MASK,
- .map_io = exynos4_map_io,
- .init = exynos_init,
- .name = name_exynos4212,
- }, {
- .idcode = EXYNOS4412_CPU_ID,
- .idmask = EXYNOS4_CPU_MASK,
- .map_io = exynos4_map_io,
- .init = exynos_init,
- .name = name_exynos4412,
- }, {
- .idcode = EXYNOS5250_SOC_ID,
- .idmask = EXYNOS5_SOC_MASK,
- .map_io = exynos5_map_io,
- .init = exynos_init,
- .name = name_exynos5250,
- }, {
- .idcode = EXYNOS5420_SOC_ID,
- .idmask = EXYNOS5_SOC_MASK,
- .map_io = exynos5_map_io,
- .init = exynos_init,
- .name = name_exynos5420,
- }, {
- .idcode = EXYNOS5440_SOC_ID,
- .idmask = EXYNOS5_SOC_MASK,
- .init = exynos_init,
- .name = name_exynos5440,
- },
-};
+static void exynos_map_io(void);
/* Initial IO mappings */
@@ -355,28 +307,28 @@ void __init exynos_init_io(void)
/* detect cpu id and rev. */
s5p_init_cpu(S5P_VA_CHIPID);
- s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
+ exynos_map_io();
}
-static void __init exynos4_map_io(void)
+static void __init exynos_map_io(void)
{
- iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc));
-
- if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_0)
- iotable_init(exynos4_iodesc0, ARRAY_SIZE(exynos4_iodesc0));
- else
- iotable_init(exynos4_iodesc1, ARRAY_SIZE(exynos4_iodesc1));
-
- if (soc_is_exynos4210())
+ if (soc_is_exynos4210() || soc_is_exynos4212() || soc_is_exynos4412())
+ iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc));
+
+ if (soc_is_exynos5250() || soc_is_exynos5420())
+ iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc));
+
+ if (soc_is_exynos4210()) {
+ if (samsung_rev() == EXYNOS4210_REV_0)
+ iotable_init(exynos4_iodesc0,
+ ARRAY_SIZE(exynos4_iodesc0));
+ else
+ iotable_init(exynos4_iodesc1,
+ ARRAY_SIZE(exynos4_iodesc1));
iotable_init(exynos4210_iodesc, ARRAY_SIZE(exynos4210_iodesc));
+ }
if (soc_is_exynos4212() || soc_is_exynos4412())
iotable_init(exynos4x12_iodesc, ARRAY_SIZE(exynos4x12_iodesc));
-}
-
-static void __init exynos5_map_io(void)
-{
- iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc));
-
if (soc_is_exynos5250())
iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc));
}
@@ -386,10 +338,6 @@ struct bus_type exynos_subsys = {
.dev_name = "exynos-core",
};
-static struct device exynos4_dev = {
- .bus= &exynos_subsys,
-};
-
static int __init exynos_core_init(void)
{
return subsys_system_register(&exynos_subsys, NULL);
@@ -409,10 +357,3 @@ static in
