ARM: SAMSUNG: Add support s3c2443-adc for S3C2443
The S3C2443-adc is 10 bit wide and has its mux-select
in an extra register at base+0x18
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-s3c2443/s3c2443.c b/arch/arm/mach-s3c2443/s3c2443.c
index 5df6458..a22b771 100644
--- a/arch/arm/mach-s3c2443/s3c2443.c
+++ b/arch/arm/mach-s3c2443/s3c2443.c
@@ -41,6 +41,7 @@
#include <plat/cpu.h>
#include <plat/fb-core.h>
#include <plat/nand-core.h>
+#include <plat/adc-core.h>
static struct map_desc s3c2443_iodesc[] __initdata = {
IODESC_ENT(WATCHDOG),
@@ -70,6 +71,8 @@
s3c_nand_setname("s3c2412-nand");
s3c_fb_setname("s3c2443-fb");
+ s3c_adc_setname("s3c2443-adc");
+
/* change WDT IRQ number */
s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT;
diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c
index 7821055a..8d8c4cc 100644
--- a/arch/arm/plat-samsung/adc.c
+++ b/arch/arm/plat-samsung/adc.c
@@ -41,6 +41,7 @@
enum s3c_cpu_type {
TYPE_ADCV1, /* S3C24XX */
+ TYPE_ADCV11, /* S3C2443 */
TYPE_ADCV2, /* S3C64XX, S5P64X0, S5PC100 */
TYPE_ADCV3, /* S5PV210, S5PC110, EXYNOS4210 */
};
@@ -106,6 +107,9 @@
if (!client->is_ts) {
if (cpu == TYPE_ADCV3)
writel(client->channel & 0xf, adc->regs + S5P_ADCMUX);
+ else if (cpu == TYPE_ADCV11)
+ writel(client->channel & 0xf,
+ adc->regs + S3C2443_ADCMUX);
else
con |= S3C2410_ADCCON_SELMUX(client->channel);
}
@@ -294,13 +298,13 @@
client->nr_samples--;
- if (cpu != TYPE_ADCV1) {
+ if (cpu == TYPE_ADCV1 || cpu == TYPE_ADCV11) {
+ data0 &= 0x3ff;
+ data1 &= 0x3ff;
+ } else {
/* S3C64XX/S5P ADC resolution is 12-bit */
data0 &= 0xfff;
data1 &= 0xfff;
- } else {
- data0 &= 0x3ff;
- data1 &= 0x3ff;
}
if (client->convert_cb)
@@ -321,7 +325,7 @@
}
exit:
- if (cpu != TYPE_ADCV1) {
+ if (cpu == TYPE_ADCV2 || cpu == TYPE_ADCV3) {
/* Clear ADC interrupt */
writel(0, adc->regs + S3C64XX_ADCCLRINT);
}
@@ -493,6 +497,9 @@
.name = "s3c24xx-adc",
.driver_data = TYPE_ADCV1,
}, {
+ .name = "s3c2443-adc",
+ .driver_data = TYPE_ADCV11,
+ }, {
.name = "s3c64xx-adc",
.driver_data = TYPE_ADCV2,
}, {