#define __ASM_ARCH_UART_H_
#ifndef __ASSEMBLY__
-struct s5pc1xx_uart {
+struct s5p_uart {
unsigned int ulcon;
unsigned int ucon;
unsigned int ufcon;
#endif
#elif defined(CONFIG_S5PC1XX)
#if defined(CONFIG_SERIAL0)
- return &s5pc1xx_serial0_device;
+ return &s5p_serial0_device;
#elif defined(CONFIG_SERIAL1)
- return &s5pc1xx_serial1_device;
+ return &s5p_serial1_device;
#elif defined(CONFIG_SERIAL2)
- return &s5pc1xx_serial2_device;
+ return &s5p_serial2_device;
#elif defined(CONFIG_SERIAL3)
- return &s5pc1xx_serial3_device;
+ return &s5p_serial3_device;
#else
#error "CONFIG_SERIAL? missing."
#endif
serial_register(&s3c24xx_serial2_device);
#endif
#if defined(CONFIG_S5PC1XX)
- serial_register(&s5pc1xx_serial0_device);
- serial_register(&s5pc1xx_serial1_device);
- serial_register(&s5pc1xx_serial2_device);
- serial_register(&s5pc1xx_serial3_device);
+ serial_register(&s5p_serial0_device);
+ serial_register(&s5p_serial1_device);
+ serial_register(&s5p_serial2_device);
+ serial_register(&s5p_serial3_device);
#endif
#if defined(CONFIG_MPC512X)
#if defined(CONFIG_SYS_PSC1)
COBJS-$(CONFIG_SYS_NS16550) += ns16550.o
COBJS-$(CONFIG_DRIVER_S3C4510_UART) += s3c4510b_uart.o
COBJS-$(CONFIG_S3C64XX) += s3c64xx.o
-COBJS-$(CONFIG_S5PC1XX) += serial_s5pc1xx.o
+COBJS-$(CONFIG_S5PC1XX) += serial_s5p.o
COBJS-$(CONFIG_SYS_NS16550_SERIAL) += serial.o
COBJS-$(CONFIG_CLPS7111_SERIAL) += serial_clps7111.o
COBJS-$(CONFIG_IMX_SERIAL) += serial_imx.o
--- /dev/null
+/*
+ * (C) Copyright 2009 SAMSUNG Electronics
+ * Minkyu Kang <mk7.kang@samsung.com>
+ * Heungjun Kim <riverful.kim@samsung.com>
+ *
+ * based on drivers/serial/s3c64xx.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/uart.h>
+#include <asm/arch/clk.h>
+#include <serial.h>
+
+static inline struct s5p_uart *s5p_get_base_uart(int dev_index)
+{
+ u32 offset = dev_index * sizeof(struct s5p_uart);
+
+ if (cpu_is_s5pc100())
+ return (struct s5p_uart *)(S5PC100_UART_BASE + offset);
+ else
+ return (struct s5p_uart *)(S5PC110_UART_BASE + offset);
+}
+
+/*
+ * The coefficient, used to calculate the baudrate on S5P UARTs is
+ * calculated as
+ * C = UBRDIV * 16 + number_of_set_bits_in_UDIVSLOT
+ * however, section 31.6.11 of the datasheet doesn't recomment using 1 for 1,
+ * 3 for 2, ... (2^n - 1) for n, instead, they suggest using these constants:
+ */
+static const int udivslot[] = {
+ 0,
+ 0x0080,
+ 0x0808,
+ 0x0888,
+ 0x2222,
+ 0x4924,
+ 0x4a52,
+ 0x54aa,
+ 0x5555,
+ 0xd555,
+ 0xd5d5,
+ 0xddd5,
+ 0xdddd,
+ 0xdfdd,
+ 0xdfdf,
+ 0xffdf,
+};
+
+void serial_setbrg_dev(const int dev_index)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+ struct s5p_uart *const uart = s5p_get_base_uart(dev_index);
+ u32 pclk = get_pclk();
+ u32 baudrate = gd->baudrate;
+ u32 val;
+
+ val = pclk / baudrate;
+
+ writel(val / 16 - 1, &uart->ubrdiv);
+ writew(udivslot[val % 16], &uart->udivslot);
+}
+
+/*
+ * Initialise the serial port with the given baudrate. The settings
+ * are always 8 data bits, no parity, 1 stop bit, no start bits.
+ */
+int serial_init_dev(const int dev_index)
+{
+ struct s5p_uart *const uart = s5p_get_base_uart(dev_index);
+
+ /* reset and enable FIFOs, set triggers to the maximum */
+ writel(0, &uart->ufcon);
+ writel(0, &uart->umcon);
+ /* 8N1 */
+ writel(0x3, &uart->ulcon);
+ /* No interrupts, no DMA, pure polling */
+ writel(0x245, &uart->ucon);
+
+ serial_setbrg_dev(dev_index);
+
+ return 0;
+}
+
+static int serial_err_check(const int dev_index, int op)
+{
+ struct s5p_uart *const uart = s5p_get_base_uart(dev_index);
+ unsigned int mask;
+
+ /*
+ * UERSTAT
+ * Break Detect [3]
+ * Frame Err [2] : receive operation
+ * Parity Err [1] : receive operation
+ * Overrun Err [0] : receive operation
+ */
+ if (op)
+ mask = 0x8;
+ else
+ mask = 0xf;
+
+ return readl(&uart->uerstat) & mask;
+}
+
+/*
+ * Read a single byte from the serial port. Returns 1 on success, 0
+ * otherwise. When the function is succesfull, the character read is
+ * written into its argument c.
+ */
+int serial_getc_dev(const int dev_index)
+{
+ struct s5p_uart *const uart = s5p_get_base_uart(dev_index);
+
+ /* wait for character to arrive */
+ while (!(readl(&uart->utrstat) & 0x1)) {
+ if (serial_err_check(dev_index, 0))
+ return 0;
+ }
+
+ return (int)(readl(&uart->urxh) & 0xff);
+}
+
+/*
+ * Output a single byte to the serial port.
+ */
+void serial_putc_dev(const char c, const int dev_index)
+{
+ struct s5p_uart *const uart = s5p_get_base_uart(dev_index);
+
+ /* wait for room in the tx FIFO */
+ while (!(readl(&uart->utrstat) & 0x2)) {
+ if (serial_err_check(dev_index, 1))
+ return;
+ }
+
+ writel(c, &uart->utxh);
+
+ /* If \n, also do \r */
+ if (c == '\n')
+ serial_putc('\r');
+}
+
+/*
+ * Test whether a character is in the RX buffer
+ */
+int serial_tstc_dev(const int dev_index)
+{
+ struct s5p_uart *const uart = s5p_get_base_uart(dev_index);
+
+ return (int)(readl(&uart->utrstat) & 0x1);
+}
+
+void serial_puts_dev(const char *s, const int dev_index)
+{
+ while (*s)
+ serial_putc_dev(*s++, dev_index);
+}
+
+/* Multi serial device functions */
+#define DECLARE_S5P_SERIAL_FUNCTIONS(port) \
+int s5p_serial##port##_init(void) { return serial_init_dev(port); } \
+void s5p_serial##port##_setbrg(void) { serial_setbrg_dev(port); } \
+int s5p_serial##port##_getc(void) { return serial_getc_dev(port); } \
+int s5p_serial##port##_tstc(void) { return serial_tstc_dev(port); } \
+void s5p_serial##port##_putc(const char c) { serial_putc_dev(c, port); } \
+void s5p_serial##port##_puts(const char *s) { serial_puts_dev(s, port); }
+
+#define INIT_S5P_SERIAL_STRUCTURE(port, name, bus) { \
+ name, \
+ bus, \
+ s5p_serial##port##_init, \
+ NULL, \
+ s5p_serial##port##_setbrg, \
+ s5p_serial##port##_getc, \
+ s5p_serial##port##_tstc, \
+ s5p_serial##port##_putc, \
+ s5p_serial##port##_puts, }
+
+DECLARE_S5P_SERIAL_FUNCTIONS(0);
+struct serial_device s5p_serial0_device =
+ INIT_S5P_SERIAL_STRUCTURE(0, "s5pser0", "S5PUART0");
+DECLARE_S5P_SERIAL_FUNCTIONS(1);
+struct serial_device s5p_serial1_device =
+ INIT_S5P_SERIAL_STRUCTURE(1, "s5pser1", "S5PUART1");
+DECLARE_S5P_SERIAL_FUNCTIONS(2);
+struct serial_device s5p_serial2_device =
+ INIT_S5P_SERIAL_STRUCTURE(2, "s5pser2", "S5PUART2");
+DECLARE_S5P_SERIAL_FUNCTIONS(3);
+struct serial_device s5p_serial3_device =
+ INIT_S5P_SERIAL_STRUCTURE(3, "s5pser3", "S5PUART3");
+++ /dev/null
-/*
- * (C) Copyright 2009 SAMSUNG Electronics
- * Minkyu Kang <mk7.kang@samsung.com>
- * Heungjun Kim <riverful.kim@samsung.com>
- *
- * based on drivers/serial/s3c64xx.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/arch/uart.h>
-#include <asm/arch/clk.h>
-#include <serial.h>
-
-static inline struct s5pc1xx_uart *s5pc1xx_get_base_uart(int dev_index)
-{
- u32 offset = dev_index * sizeof(struct s5pc1xx_uart);
-
- if (cpu_is_s5pc100())
- return (struct s5pc1xx_uart *)(S5PC100_UART_BASE + offset);
- else
- return (struct s5pc1xx_uart *)(S5PC110_UART_BASE + offset);
-}
-
-/*
- * The coefficient, used to calculate the baudrate on S5PC1XX UARTs is
- * calculated as
- * C = UBRDIV * 16 + number_of_set_bits_in_UDIVSLOT
- * however, section 31.6.11 of the datasheet doesn't recomment using 1 for 1,
- * 3 for 2, ... (2^n - 1) for n, instead, they suggest using these constants:
- */
-static const int udivslot[] = {
- 0,
- 0x0080,
- 0x0808,
- 0x0888,
- 0x2222,
- 0x4924,
- 0x4a52,
- 0x54aa,
- 0x5555,
- 0xd555,
- 0xd5d5,
- 0xddd5,
- 0xdddd,
- 0xdfdd,
- 0xdfdf,
- 0xffdf,
-};
-
-void serial_setbrg_dev(const int dev_index)
-{
- DECLARE_GLOBAL_DATA_PTR;
- struct s5pc1xx_uart *const uart = s5pc1xx_get_base_uart(dev_index);
- u32 pclk = get_pclk();
- u32 baudrate = gd->baudrate;
- u32 val;
-
- val = pclk / baudrate;
-
- writel(val / 16 - 1, &uart->ubrdiv);
- writew(udivslot[val % 16], &uart->udivslot);
-}
-
-/*
- * Initialise the serial port with the given baudrate. The settings
- * are always 8 data bits, no parity, 1 stop bit, no start bits.
- */
-int serial_init_dev(const int dev_index)
-{
- struct s5pc1xx_uart *const uart = s5pc1xx_get_base_uart(dev_index);
-
- /* reset and enable FIFOs, set triggers to the maximum */
- writel(0, &uart->ufcon);
- writel(0, &uart->umcon);
- /* 8N1 */
- writel(0x3, &uart->ulcon);
- /* No interrupts, no DMA, pure polling */
- writel(0x245, &uart->ucon);
-
- serial_setbrg_dev(dev_index);
-
- return 0;
-}
-
-static int serial_err_check(const int dev_index, int op)
-{
- struct s5pc1xx_uart *const uart = s5pc1xx_get_base_uart(dev_index);
- unsigned int mask;
-
- /*
- * UERSTAT
- * Break Detect [3]
- * Frame Err [2] : receive operation
- * Parity Err [1] : receive operation
- * Overrun Err [0] : receive operation
- */
- if (op)
- mask = 0x8;
- else
- mask = 0xf;
-
- return readl(&uart->uerstat) & mask;
-}
-
-/*
- * Read a single byte from the serial port. Returns 1 on success, 0
- * otherwise. When the function is succesfull, the character read is
- * written into its argument c.
- */
-int serial_getc_dev(const int dev_index)
-{
- struct s5pc1xx_uart *const uart = s5pc1xx_get_base_uart(dev_index);
-
- /* wait for character to arrive */
- while (!(readl(&uart->utrstat) & 0x1)) {
- if (serial_err_check(dev_index, 0))
- return 0;
- }
-
- return (int)(readl(&uart->urxh) & 0xff);
-}
-
-/*
- * Output a single byte to the serial port.
- */
-void serial_putc_dev(const char c, const int dev_index)
-{
- struct s5pc1xx_uart *const uart = s5pc1xx_get_base_uart(dev_index);
-
- /* wait for room in the tx FIFO */
- while (!(readl(&uart->utrstat) & 0x2)) {
- if (serial_err_check(dev_index, 1))
- return;
- }
-
- writel(c, &uart->utxh);
-
- /* If \n, also do \r */
- if (c == '\n')
- serial_putc('\r');
-}
-
-/*
- * Test whether a character is in the RX buffer
- */
-int serial_tstc_dev(const int dev_index)
-{
- struct s5pc1xx_uart *const uart = s5pc1xx_get_base_uart(dev_index);
-
- return (int)(readl(&uart->utrstat) & 0x1);
-}
-
-void serial_puts_dev(const char *s, const int dev_index)
-{
- while (*s)
- serial_putc_dev(*s++, dev_index);
-}
-
-/* Multi serial device functions */
-#define DECLARE_S5P_SERIAL_FUNCTIONS(port) \
-int s5p_serial##port##_init(void) { return serial_init_dev(port); } \
-void s5p_serial##port##_setbrg(void) { serial_setbrg_dev(port); } \
-int s5p_serial##port##_getc(void) { return serial_getc_dev(port); } \
-int s5p_serial##port##_tstc(void) { return serial_tstc_dev(port); } \
-void s5p_serial##port##_putc(const char c) { serial_putc_dev(c, port); } \
-void s5p_serial##port##_puts(const char *s) { serial_puts_dev(s, port); }
-
-#define INIT_S5P_SERIAL_STRUCTURE(port, name, bus) { \
- name, \
- bus, \
- s5p_serial##port##_init, \
- NULL, \
- s5p_serial##port##_setbrg, \
- s5p_serial##port##_getc, \
- s5p_serial##port##_tstc, \
- s5p_serial##port##_putc, \
- s5p_serial##port##_puts, }
-
-DECLARE_S5P_SERIAL_FUNCTIONS(0);
-struct serial_device s5pc1xx_serial0_device =
- INIT_S5P_SERIAL_STRUCTURE(0, "s5pser0", "S5PUART0");
-DECLARE_S5P_SERIAL_FUNCTIONS(1);
-struct serial_device s5pc1xx_serial1_device =
- INIT_S5P_SERIAL_STRUCTURE(1, "s5pser1", "S5PUART1");
-DECLARE_S5P_SERIAL_FUNCTIONS(2);
-struct serial_device s5pc1xx_serial2_device =
- INIT_S5P_SERIAL_STRUCTURE(2, "s5pser2", "S5PUART2");
-DECLARE_S5P_SERIAL_FUNCTIONS(3);
-struct serial_device s5pc1xx_serial3_device =
- INIT_S5P_SERIAL_STRUCTURE(3, "s5pser3", "S5PUART3");
#endif
#if defined(CONFIG_S5PC1XX)
-extern struct serial_device s5pc1xx_serial0_device;
-extern struct serial_device s5pc1xx_serial1_device;
-extern struct serial_device s5pc1xx_serial2_device;
-extern struct serial_device s5pc1xx_serial3_device;
+extern struct serial_device s5p_serial0_device;
+extern struct serial_device s5p_serial1_device;
+extern struct serial_device s5p_serial2_device;
+extern struct serial_device s5p_serial3_device;
#endif
#if defined(CONFIG_OMAP3_ZOOM2)
projects / oweals / u-boot.git / commitdiff