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-rw-r--r--drivers/i2c/busses/Kconfig11
-rw-r--r--drivers/rtc/Kconfig9
-rw-r--r--drivers/rtc/rtc-s3c.c44
-rw-r--r--drivers/serial/Kconfig4
-rw-r--r--drivers/serial/s5pv210.c8
-rw-r--r--drivers/serial/samsung.c9
6 files changed, 76 insertions, 9 deletions
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 29e01f6238a..15a9702e294 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -521,12 +521,19 @@ config I2C_PXA_SLAVE
is necessary for systems where the PXA may be a target on the
I2C bus.
+config HAVE_S3C2410_I2C
+ bool
+ help
+ This will include I2C support for Samsung SoCs. If you want to
+ include I2C support for any machine, kindly select this in the
+ respective Kconfig file.
+
config I2C_S3C2410
tristate "S3C2410 I2C Driver"
- depends on ARCH_S3C2410 || ARCH_S3C64XX
+ depends on HAVE_S3C2410_I2C
help
Say Y here to include support for I2C controller in the
- Samsung S3C2410 based System-on-Chip devices.
+ Samsung SoCs.
config I2C_S6000
tristate "S6000 I2C support"
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 4301a6c7ed3..9238c8f40f0 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -645,9 +645,16 @@ config RTC_DRV_OMAP
DA8xx/OMAP-L13x chips. This driver can also be built as a
module called rtc-omap.
+config HAVE_S3C_RTC
+ bool
+ help
+ This will include RTC support for Samsung SoCs. If
+ you want to include RTC support for any machine, kindly
+ select this in the respective mach-XXXX/Kconfig file.
+
config RTC_DRV_S3C
tristate "Samsung S3C series SoC RTC"
- depends on ARCH_S3C2410 || ARCH_S3C64XX
+ depends on ARCH_S3C2410 || ARCH_S3C64XX || HAVE_S3C_RTC
help
RTC (Realtime Clock) driver for the clock inbuilt into the
Samsung S3C24XX series of SoCs. This can provide periodic
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 70b68d35f96..a0d3ec89d41 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -1,5 +1,8 @@
/* drivers/rtc/rtc-s3c.c
*
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
* Copyright (c) 2004,2006 Simtec Electronics
* Ben Dooks, <ben@simtec.co.uk>
* http://armlinux.simtec.co.uk/
@@ -39,6 +42,7 @@ enum s3c_cpu_type {
static struct resource *s3c_rtc_mem;
+static struct clk *rtc_clk;
static void __iomem *s3c_rtc_base;
static int s3c_rtc_alarmno = NO_IRQ;
static int s3c_rtc_tickno = NO_IRQ;
@@ -53,6 +57,10 @@ static irqreturn_t s3c_rtc_alarmirq(int irq, void *id)
struct rtc_device *rdev = id;
rtc_update_irq(rdev, 1, RTC_AF | RTC_IRQF);
+
+ if (s3c_rtc_cpu_type == TYPE_S3C64XX)
+ writeb(S3C2410_INTP_ALM, s3c_rtc_base + S3C2410_INTP);
+
return IRQ_HANDLED;
}
@@ -61,6 +69,10 @@ static irqreturn_t s3c_rtc_tickirq(int irq, void *id)
struct rtc_device *rdev = id;
rtc_update_irq(rdev, 1, RTC_PF | RTC_IRQF);
+
+ if (s3c_rtc_cpu_type == TYPE_S3C64XX)
+ writeb(S3C2410_INTP_TIC, s3c_rtc_base + S3C2410_INTP);
+
return IRQ_HANDLED;
}
@@ -94,7 +106,7 @@ static int s3c_rtc_setpie(struct device *dev, int enabled)
if (enabled)
tmp |= S3C64XX_RTCCON_TICEN;
- writeb(tmp, s3c_rtc_base + S3C2410_RTCCON);
+ writew(tmp, s3c_rtc_base + S3C2410_RTCCON);
} else {
tmp = readb(s3c_rtc_base + S3C2410_TICNT);
tmp &= ~S3C2410_TICNT_ENABLE;
@@ -128,7 +140,7 @@ static int s3c_rtc_setfreq(struct device *dev, int freq)
tmp |= (rtc_dev->max_user_freq / freq)-1;
- writeb(tmp, s3c_rtc_base + S3C2410_TICNT);
+ writel(tmp, s3c_rtc_base + S3C2410_TICNT);
spin_unlock_irq(&s3c_rtc_pie_lock);
return 0;
@@ -431,6 +443,10 @@ static int __devexit s3c_rtc_remove(struct platform_device *dev)
s3c_rtc_setpie(&dev->dev, 0);
s3c_rtc_setaie(0);
+ clk_disable(rtc_clk);
+ clk_put(rtc_clk);
+ rtc_clk = NULL;
+
iounmap(s3c_rtc_base);
release_resource(s3c_rtc_mem);
kfree(s3c_rtc_mem);
@@ -442,6 +458,7 @@ static int __devinit s3c_rtc_probe(struct platform_device *pdev)
{
struct rtc_device *rtc;
struct resource *res;
+ unsigned int tmp, i;
int ret;
pr_debug("%s: probe=%p\n", __func__, pdev);
@@ -488,6 +505,16 @@ static int __devinit s3c_rtc_probe(struct platform_device *pdev)
goto err_nomap;
}
+ rtc_clk = clk_get(&pdev->dev, "rtc");
+ if (IS_ERR(rtc_clk)) {
+ dev_err(&pdev->dev, "failed to find rtc clock source\n");
+ ret = PTR_ERR(rtc_clk);
+ rtc_clk = NULL;
+ goto err_clk;
+ }
+
+ clk_enable(rtc_clk);
+
/* check to see if everything is setup correctly */
s3c_rtc_enable(pdev, 1);
@@ -510,6 +537,15 @@ static int __devinit s3c_rtc_probe(struct platform_device *pdev)
s3c_rtc_cpu_type = platform_get_device_id(pdev)->driver_data;
+ /* Check RTC Time */
+
+ for (i = S3C2410_RTCSEC; i <= S3C2410_RTCYEAR; i += 0x4) {
+ tmp = readb(s3c_rtc_base + i);
+
+ if ((tmp & 0xf) > 0x9 || ((tmp >> 4) & 0xf) > 0x9)
+ writeb(0, s3c_rtc_base + i);
+ }
+
if (s3c_rtc_cpu_type == TYPE_S3C64XX)
rtc->max_user_freq = 32768;
else
@@ -523,6 +559,10 @@ static int __devinit s3c_rtc_probe(struct platform_device *pdev)
err_nortc:
s3c_rtc_enable(pdev, 0);
+ clk_disable(rtc_clk);
+ clk_put(rtc_clk);
+
+ err_clk:
iounmap(s3c_rtc_base);
err_nomap:
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index e437ce8c174..8f23eb54f49 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -536,8 +536,8 @@ config SERIAL_S3C6400
config SERIAL_S5PV210
tristate "Samsung S5PV210 Serial port support"
- depends on SERIAL_SAMSUNG && (CPU_S5PV210 || CPU_S5P6442)
- select SERIAL_SAMSUNG_UARTS_4 if CPU_S5PV210
+ depends on SERIAL_SAMSUNG && (CPU_S5PV210 || CPU_S5P6442 || CPU_S5PV310)
+ select SERIAL_SAMSUNG_UARTS_4 if (CPU_S5PV210 || CPU_S5PV310)
default y
help
Serial port support for Samsung's S5P Family of SoC's
diff --git a/drivers/serial/s5pv210.c b/drivers/serial/s5pv210.c
index 4a789e5361a..6ebccd70a70 100644
--- a/drivers/serial/s5pv210.c
+++ b/drivers/serial/s5pv210.c
@@ -28,8 +28,12 @@
static int s5pv210_serial_setsource(struct uart_port *port,
struct s3c24xx_uart_clksrc *clk)
{
+ struct s3c2410_uartcfg *cfg = port->dev->platform_data;
unsigned long ucon = rd_regl(port, S3C2410_UCON);
+ if ((cfg->clocks_size) == 1)
+ return 0;
+
if (strcmp(clk->name, "pclk") == 0)
ucon &= ~S5PV210_UCON_CLKMASK;
else if (strcmp(clk->name, "uclk1") == 0)
@@ -47,10 +51,14 @@ static int s5pv210_serial_setsource(struct uart_port *port,
static int s5pv210_serial_getsource(struct uart_port *port,
struct s3c24xx_uart_clksrc *clk)
{
+ struct s3c2410_uartcfg *cfg = port->dev->platform_data;
u32 ucon = rd_regl(port, S3C2410_UCON);
clk->divisor = 1;
+ if ((cfg->clocks_size) == 1)
+ return 0;
+
switch (ucon & S5PV210_UCON_CLKMASK) {
case S5PV210_UCON_PCLK:
clk->name = "pclk";
diff --git a/drivers/serial/samsung.c b/drivers/serial/samsung.c
index a9d6c5626a0..b1156ba8ad1 100644
--- a/drivers/serial/samsung.c
+++ b/drivers/serial/samsung.c
@@ -705,8 +705,13 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
if (ourport->info->has_divslot) {
unsigned int div = ourport->baudclk_rate / baud;
- udivslot = udivslot_table[div & 15];
- dbg("udivslot = %04x (div %d)\n", udivslot, div & 15);
+ if (cfg->has_fracval) {
+ udivslot = (div & 15);
+ dbg("fracval = %04x\n", udivslot);
+ } else {
+ udivslot = udivslot_table[div & 15];
+ dbg("udivslot = %04x (div %d)\n", udivslot, div & 15);
+ }
}
switch (termios->c_cflag & CSIZE) {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-18 07:17:56 +0000