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-rw-r--r--drivers/serial/serial_s3c24x0.c160
1 files changed, 91 insertions, 69 deletions
diff --git a/drivers/serial/serial_s3c24x0.c b/drivers/serial/serial_s3c24x0.c
index 6d69c43..c2c72e4 100644
--- a/drivers/serial/serial_s3c24x0.c
+++ b/drivers/serial/serial_s3c24x0.c
@@ -38,7 +38,7 @@ DECLARE_GLOBAL_DATA_PTR;
#elif defined(CONFIG_SERIAL3)
# if defined(CONFIG_TRAB)
-# #error "TRAB supports only CONFIG_SERIAL1"
+# error "TRAB supports only CONFIG_SERIAL1"
# endif
#define UART_NR S3C24X0_UART2
@@ -46,51 +46,71 @@ DECLARE_GLOBAL_DATA_PTR;
#error "Bad: you didn't configure serial ..."
#endif
+#include <asm/io.h>
+
#if defined(CONFIG_SERIAL_MULTI)
#include <serial.h>
/* Multi serial device functions */
#define DECLARE_S3C_SERIAL_FUNCTIONS(port) \
- int s3serial##port##_init (void) {\
- return serial_init_dev(port);}\
- void s3serial##port##_setbrg (void) {\
- serial_setbrg_dev(port);}\
- int s3serial##port##_getc (void) {\
- return serial_getc_dev(port);}\
- int s3serial##port##_tstc (void) {\
- return serial_tstc_dev(port);}\
- void s3serial##port##_putc (const char c) {\
- serial_putc_dev(port, c);}\
- void s3serial##port##_puts (const char *s) {\
- serial_puts_dev(port, s);}
-
-#define INIT_S3C_SERIAL_STRUCTURE(port,name,bus) {\
- name,\
- bus,\
- s3serial##port##_init,\
- s3serial##port##_setbrg,\
- s3serial##port##_getc,\
- s3serial##port##_tstc,\
- s3serial##port##_putc,\
- s3serial##port##_puts, }
+ int s3serial##port##_init(void) \
+ { \
+ return serial_init_dev(port); \
+ } \
+ void s3serial##port##_setbrg(void) \
+ { \
+ serial_setbrg_dev(port); \
+ } \
+ int s3serial##port##_getc(void) \
+ { \
+ return serial_getc_dev(port); \
+ } \
+ int s3serial##port##_tstc(void) \
+ { \
+ return serial_tstc_dev(port); \
+ } \
+ void s3serial##port##_putc(const char c) \
+ { \
+ serial_putc_dev(port, c); \
+ } \
+ void s3serial##port##_puts(const char *s) \
+ { \
+ serial_puts_dev(port, s); \
+ }
+
+#define INIT_S3C_SERIAL_STRUCTURE(port, name, bus) { \
+ name, \
+ bus, \
+ s3serial##port##_init, \
+ s3serial##port##_setbrg, \
+ s3serial##port##_getc, \
+ s3serial##port##_tstc, \
+ s3serial##port##_putc, \
+ s3serial##port##_puts, \
+}
#endif /* CONFIG_SERIAL_MULTI */
+#ifdef CONFIG_HWFLOW
+static int hwflow;
+#endif
+
void _serial_setbrg(const int dev_index)
{
- S3C24X0_UART * const uart = S3C24X0_GetBase_UART(dev_index);
+ struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
unsigned int reg = 0;
int i;
/* value is calculated so : (int)(PCLK/16./baudrate) -1 */
reg = get_PCLK() / (16 * gd->baudrate) - 1;
- uart->UBRDIV = reg;
- for (i = 0; i < 100; i++);
+ writel(reg, &uart->UBRDIV);
+ for (i = 0; i < 100; i++)
+ /* Delay */ ;
}
+
#if defined(CONFIG_SERIAL_MULTI)
-static inline void
-serial_setbrg_dev(unsigned int dev_index)
+static inline void serial_setbrg_dev(unsigned int dev_index)
{
_serial_setbrg(dev_index);
}
@@ -107,29 +127,33 @@ void serial_setbrg(void)
*/
static int serial_init_dev(const int dev_index)
{
- S3C24X0_UART * const uart = S3C24X0_GetBase_UART(dev_index);
+ struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
+
+#ifdef CONFIG_HWFLOW
+ hwflow = 0; /* turned off by default */
+#endif
/* FIFO enable, Tx/Rx FIFO clear */
- uart->UFCON = 0x07;
- uart->UMCON = 0x0;
+ writel(0x07, &uart->UFCON);
+ writel(0x0, &uart->UMCON);
/* Normal,No parity,1 stop,8 bit */
- uart->ULCON = 0x3;
+ writel(0x3, &uart->ULCON);
/*
* tx=level,rx=edge,disable timeout int.,enable rx error int.,
* normal,interrupt or polling
*/
- uart->UCON = 0x245;
+ writel(0x245, &uart->UCON);
#ifdef CONFIG_HWFLOW
- uart->UMCON = 0x1; /* RTS up */
+ writel(0x1, &uart->UMCON); /* RTS up */
#endif
/* FIXME: This is sooooooooooooooooooo ugly */
#if defined(CONFIG_ARCH_GTA02_v1) || defined(CONFIG_ARCH_GTA02_v2)
/* we need auto hw flow control on the gsm and gps port */
if (dev_index == 0 || dev_index == 1)
- uart->UMCON = 0x10;
+ writel(0x10, &uart->UMCON);
#endif
_serial_setbrg(dev_index);
@@ -140,7 +164,7 @@ static int serial_init_dev(const int dev_index)
/* Initialise the serial port. The settings are always 8 data bits, no parity,
* 1 stop bit, no start bits.
*/
-int serial_init (void)
+int serial_init(void)
{
return serial_init_dev(UART_NR);
}
@@ -151,40 +175,40 @@ int serial_init (void)
* otherwise. When the function is succesfull, the character read is
* written into its argument c.
*/
-int _serial_getc (const int dev_index)
+int _serial_getc(const int dev_index)
{
- S3C24X0_UART * const uart = S3C24X0_GetBase_UART(dev_index);
+ struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
- /* wait for character to arrive */
- while (!(uart->UTRSTAT & 0x1));
+ while (!(readl(&uart->UTRSTAT) & 0x1))
+ /* wait for character to arrive */ ;
- return uart->URXH & 0xff;
+ return readb(&uart->URXH) & 0xff;
}
+
#if defined(CONFIG_SERIAL_MULTI)
static inline int serial_getc_dev(unsigned int dev_index)
{
return _serial_getc(dev_index);
}
#else
-int serial_getc (void)
+int serial_getc(void)
{
return _serial_getc(UART_NR);
}
#endif
#ifdef CONFIG_HWFLOW
-static int hwflow = 0; /* turned off by default */
int hwflow_onoff(int on)
{
- switch(on) {
+ switch (on) {
case 0:
default:
- break; /* return current */
+ break; /* return current */
case 1:
- hwflow = 1; /* turn on */
+ hwflow = 1; /* turn on */
break;
case -1:
- hwflow = 0; /* turn off */
+ hwflow = 0; /* turn off */
break;
}
return hwflow;
@@ -208,29 +232,29 @@ void enable_putc(void)
/*
* Output a single byte to the serial port.
*/
-void _serial_putc (const char c, const int dev_index)
+void _serial_putc(const char c, const int dev_index)
{
- S3C24X0_UART * const uart = S3C24X0_GetBase_UART(dev_index);
+ struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
#ifdef CONFIG_MODEM_SUPPORT
if (be_quiet)
return;
#endif
- /* wait for room in the tx FIFO */
- while (!(uart->UTRSTAT & 0x2));
+ while (!(readl(&uart->UTRSTAT) & 0x2))
+ /* wait for room in the tx FIFO */ ;
#ifdef CONFIG_HWFLOW
- /* Wait for CTS up */
- while(hwflow && !(uart->UMSTAT & 0x1))
- ;
+ while (hwflow && !(readl(&uart->UMSTAT) & 0x1))
+ /* Wait for CTS up */ ;
#endif
- uart->UTXH = c;
+ writeb(c, &uart->UTXH);
/* If \n, also do \r */
if (c == '\n')
- serial_putc ('\r');
+ serial_putc('\r');
}
+
#if defined(CONFIG_SERIAL_MULTI)
static inline void serial_putc_dev(unsigned int dev_index, const char c)
{
@@ -249,13 +273,13 @@ void serial_putc(const char c)
*/
int _serial_tstc(const int dev_index)
{
- S3C24X0_UART * const uart = S3C24X0_GetBase_UART(dev_index);
+ struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
- return uart->UTRSTAT & 0x1;
+ return readl(&uart->UTRSTAT) & 0x1;
}
+
#if defined(CONFIG_SERIAL_MULTI)
-static inline int
-serial_tstc_dev(unsigned int dev_index)
+static inline int serial_tstc_dev(unsigned int dev_index)
{
return _serial_tstc(dev_index);
}
@@ -269,18 +293,17 @@ int serial_tstc(void)
void _serial_puts(const char *s, const int dev_index)
{
while (*s) {
- _serial_putc (*s++, dev_index);
+ _serial_putc(*s++, dev_index);
}
}
+
#if defined(CONFIG_SERIAL_MULTI)
-static inline void
-serial_puts_dev(int dev_index, const char *s)
+static inline void serial_puts_dev(int dev_index, const char *s)
{
_serial_puts(s, dev_index);
}
#else
-void
-serial_puts (const char *s)
+void serial_puts(const char *s)
{
_serial_puts(s, UART_NR);
}
@@ -289,12 +312,11 @@ serial_puts (const char *s)
#if defined(CONFIG_SERIAL_MULTI)
DECLARE_S3C_SERIAL_FUNCTIONS(0);
struct serial_device s3c24xx_serial0_device =
- INIT_S3C_SERIAL_STRUCTURE(0, "s3ser0", "S3UART1");
+INIT_S3C_SERIAL_STRUCTURE(0, "s3ser0", "S3UART1");
DECLARE_S3C_SERIAL_FUNCTIONS(1);
struct serial_device s3c24xx_serial1_device =
- INIT_S3C_SERIAL_STRUCTURE(1, "s3ser1", "S3UART2");
+INIT_S3C_SERIAL_STRUCTURE(1, "s3ser1", "S3UART2");
DECLARE_S3C_SERIAL_FUNCTIONS(2);
struct serial_device s3c24xx_serial2_device =
- INIT_S3C_SERIAL_STRUCTURE(2, "s3ser2", "S3UART3");
-
+INIT_S3C_SERIAL_STRUCTURE(2, "s3ser2", "S3UART3");
#endif /* CONFIG_SERIAL_MULTI */
generated by cgit v1.1 at 2024-12-19 20:14:21 +0000