This patch removes legacy UART initialization code that was used to
set up UART platform devices when booting with ATAGS, which is not
supported on Exynos any more.
Signed-off-by: Tomasz Figa <t.figa@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
arch/arm/mach-exynos/common.c | 17 -----------------
arch/arm/plat-samsung/init.c | 8 +++++---
2 files changed, 5 insertions(+), 20 deletions(-)
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 488d9bd..598e4b8 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -69,7 +69,6 @@ static const char name_exynos5440[] = "EXYNOS5440";
static void exynos4_map_io(void);
static void exynos5_map_io(void);
static void exynos5440_map_io(void);
-static void exynos4_init_uarts(struct s3c2410_uartcfg *cfg, int no);
static int exynos_init(void);
unsigned long xxti_f = 0, xusbxti_f = 0;
@@ -79,21 +78,18 @@ static struct cpu_table cpu_ids[] __initdata = {
.idcode = EXYNOS4210_CPU_ID,
.idmask = EXYNOS4_CPU_MASK,
.map_io = exynos4_map_io,
- .init_uarts = exynos4_init_uarts,
.init = exynos_init,
.name = name_exynos4210,
}, {
.idcode = EXYNOS4212_CPU_ID,
.idmask = EXYNOS4_CPU_MASK,
.map_io = exynos4_map_io,
- .init_uarts = exynos4_init_uarts,
.init = exynos_init,
.name = name_exynos4212,
}, {
.idcode = EXYNOS4412_CPU_ID,
.idmask = EXYNOS4_CPU_MASK,
.map_io = exynos4_map_io,
- .init_uarts = exynos4_init_uarts,
.init = exynos_init,
.name = name_exynos4412,
}, {
@@ -602,16 +598,3 @@ static int __init exynos_init(void)
return device_register(&exynos4_dev);
}
-
-/* uart registration process */
-
-static void __init exynos4_init_uarts(struct s3c2410_uartcfg *cfg, int no)
-{
- struct s3c2410_uartcfg *tcfg = cfg;
- u32 ucnt;
-
- for (ucnt = 0; ucnt < no; ucnt++, tcfg++)
- tcfg->has_fracval = 1;
-
- s3c24xx_init_uartdevs("exynos4210-uart", exynos4_uart_resources, cfg, no);
-}
diff --git a/arch/arm/plat-samsung/init.c b/arch/arm/plat-samsung/init.c
index 79d10fc..3e5c461 100644
--- a/arch/arm/plat-samsung/init.c
+++ b/arch/arm/plat-samsung/init.c
@@ -87,7 +87,7 @@ void __init s3c24xx_init_clocks(int xtal)
}
/* uart management */
-
+#if IS_ENABLED(CONFIG_SAMSUNG_ATAGS)
static int nr_uarts __initdata = 0;
static struct s3c2410_uartcfg uart_cfgs[CONFIG_SERIAL_SAMSUNG_UARTS];
@@ -134,11 +134,12 @@ void __init s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no)
if (cpu == NULL)
return;
- if (cpu->init_uarts == NULL) {
+ if (cpu->init_uarts == NULL && IS_ENABLED(CONFIG_SAMSUNG_ATAGS)) {
printk(KERN_ERR "s3c24xx_init_uarts: cpu has no uart init\n");
} else
(cpu->init_uarts)(cfg, no);
}
+#endif
static int __init s3c_arch_init(void)
{
@@ -152,8 +153,9 @@ static int __init s3c_arch_init(void)
ret = (cpu->init)();
if (ret != 0)
return ret;
-
+#if IS_ENABLED(CONFIG_SAMSUNG_ATAGS)
ret = platform_add_devices(s3c24xx_uart_devs, nr_uarts);
+#endif
return ret;
}
--
1.8.2.1
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
