cpu_table was used to distinguish between different Exynos4 and 5
SoCs and based on the type do the initialization and io mapping.
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<sachin.ka...@linaro.org>
Tested-by: Tomasz Figa<t.f...@samsung.com>
---
arch/arm/mach-exynos/common.c | 108 +++++++++--------------------------------
1 file changed, 23 insertions(+), 85 deletions(-)
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index e98ddadc5f74..10ed374c0744 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -48,56 +48,6 @@
#define L2_AUX_VAL 0x7C470001
#define L2_AUX_MASK 0xC200ffff
-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,
- },
-};
-
/* Initial IO mappings */
static struct map_desc exynos4_iodesc[] __initdata = {
@@ -346,6 +296,28 @@ static int __init exynos_fdt_map_chipid(unsigned long
node, const char *uname,
*
* register the standard cpu IO areas
*/
+static void __init exynos_map_io(void)
+{
+ 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));
+ if (soc_is_exynos5250())
+ iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc));
+}
void __init exynos_init_io(void)
{
@@ -356,30 +328,7 @@ 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));
-}
-
-static void __init exynos4_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())
- 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));
+ exynos_map_io();
}
struct bus_type exynos_subsys = {
@@ -387,10 +336,6 @@ 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);
@@ -410,10 +355,3 @@ static int __init exynos4_l2x0_cache_init(void)
return 0;
}
early_initcall(exynos4_l2x0_cache_init);
-
-static int __init exynos_init(void)
-{
- printk(KERN_INFO "EXYNOS: Initializing architecture\n");
-
- return device_register(&exynos4_dev);
-}
