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ARM: uniphier: add macro to generate SoC data look-up function 

There are similar functions that look up SoC data by the SoC ID.
The new macro UNIPHIER_DEFINE_SOCDATA_FUNC will be helpful to
avoid the code duplication.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2017-01-21 18:05:27 +09:00
parent e27d6c7d32
commit ee8ef5afa8
3 changed files with 23 additions and 33 deletions
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20
arch/arm/mach-uniphier/board_init.c
View File

@ -169,32 +169,18 @@ static const struct uniphier_initdata uniphier_initdata[] = {
},
#endif
};
static const struct uniphier_initdata *uniphier_get_initdata(
unsigned int soc_id)
{
int i;
for (i = 0; i < ARRAY_SIZE(uniphier_initdata); i++) {
if (uniphier_initdata[i].soc_id == soc_id)
return &uniphier_initdata[i];
}
return NULL;
}
UNIPHIER_DEFINE_SOCDATA_FUNC(uniphier_get_initdata, uniphier_initdata)
int board_init(void)
{
const struct uniphier_initdata *initdata;
unsigned int soc_id;
int ret;
led_puts("U0");
soc_id = uniphier_get_soc_id();
initdata = uniphier_get_initdata(soc_id);
initdata = uniphier_get_initdata();
if (!initdata) {
pr_err("unsupported board\n");
pr_err("unsupported SoC\n");
return -EINVAL;
}

18
arch/arm/mach-uniphier/soc-info.h
View File

@ -8,6 +8,9 @@
#ifndef __UNIPHIER_SOC_INFO_H__
#define __UNIPHIER_SOC_INFO_H__
#include <linux/kernel.h>
#include <linux/stddef.h>
#define UNIPHIER_SLD3_ID 0x25
#define UNIPHIER_LD4_ID 0x26
#define UNIPHIER_PRO4_ID 0x28
@ -22,4 +25,19 @@ unsigned int uniphier_get_soc_id(void);
unsigned int uniphier_get_soc_model(void);
unsigned int uniphier_get_soc_revision(void);
#define UNIPHIER_DEFINE_SOCDATA_FUNC(__func_name, __table) \
static typeof(&__table[0]) __func_name(void) \
{ \
unsigned int soc_id; \
int i; \
\
soc_id = uniphier_get_soc_id(); \
for (i = 0; i < ARRAY_SIZE(__table); i++) { \
if (__table[i].soc_id == soc_id) \
return &__table[i]; \
} \
\
return NULL; \
}
#endif /* __UNIPHIER_SOC_INFO_H__ */

18
arch/arm/mach-uniphier/spl_board_init.c
View File

@ -118,25 +118,12 @@ static const struct uniphier_spl_initdata uniphier_spl_initdata[] = {
},
#endif
};
static const struct uniphier_spl_initdata *uniphier_get_spl_initdata(
unsigned int soc_id)
{
int i;
for (i = 0; i < ARRAY_SIZE(uniphier_spl_initdata); i++) {
if (uniphier_spl_initdata[i].soc_id == soc_id)
return &uniphier_spl_initdata[i];
}
return NULL;
}
UNIPHIER_DEFINE_SOCDATA_FUNC(uniphier_get_spl_initdata, uniphier_spl_initdata)
void spl_board_init(void)
{
const struct uniphier_board_data *bd;
const struct uniphier_spl_initdata *initdata;
unsigned int soc_id;
int ret;
#ifdef CONFIG_DEBUG_UART
@ -147,8 +134,7 @@ void spl_board_init(void)
if (!bd)
hang();
soc_id = uniphier_get_soc_id();
initdata = uniphier_get_spl_initdata(soc_id);
initdata = uniphier_get_spl_initdata();
if (!initdata)
hang();