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yaml
---
r: 187632
b: refs/heads/master
c: 159a3dd
h: refs/heads/master
v: v3
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Ben Dooks committed Jan 26, 2010
1 parent 32d028c commit cab386b
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Showing 8 changed files with 223 additions and 5 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 1725c679a08902ce04419b274d22254155ce707c
refs/heads/master: 159a3ddd6c0521b4ab81697b2cf06a903a854862
8 changes: 8 additions & 0 deletions trunk/arch/arm/mach-s5p6440/include/mach/map.h
Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,14 @@
#define S5P_PA_UART S5P6440_PA_UART
#define S5P_VA_UART S3C_VA_UART

/* HS USB OtG */
#define S5P6440_PA_HSOTG (0xED100000)

/* HSMMC */
#define S5P6440_PA_HSMMC0 (0xED800000)
#define S5P6440_PA_HSMMC1 (0xED900000)
#define S5P6440_PA_HSMMC2 (0xEDA00000)

#define S5P_PA_UART0 (S5P_PA_UART + 0x0)
#define S5P_PA_UART1 (S5P_PA_UART + 0x400)
#define S5P_PA_UART2 (S5P_PA_UART + 0x800)
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30 changes: 30 additions & 0 deletions trunk/arch/arm/plat-s3c/include/plat/regs-serial.h
Original file line number Diff line number Diff line change
Expand Up @@ -194,6 +194,36 @@
#define S3C64XX_UINTSP 0x34
#define S3C64XX_UINTM 0x38

/* Following are specific to S5PV210 and S5P6442 */
#define S5PV210_UCON_CLKMASK (1<<10)
#define S5PV210_UCON_PCLK (0<<10)
#define S5PV210_UCON_UCLK (1<<10)

#define S5PV210_UFCON_TXTRIG0 (0<<8)
#define S5PV210_UFCON_TXTRIG4 (1<<8)
#define S5PV210_UFCON_TXTRIG8 (2<<8)
#define S5PV210_UFCON_TXTRIG16 (3<<8)
#define S5PV210_UFCON_TXTRIG32 (4<<8)
#define S5PV210_UFCON_TXTRIG64 (5<<8)
#define S5PV210_UFCON_TXTRIG128 (6<<8)
#define S5PV210_UFCON_TXTRIG256 (7<<8)

#define S5PV210_UFCON_RXTRIG1 (0<<4)
#define S5PV210_UFCON_RXTRIG4 (1<<4)
#define S5PV210_UFCON_RXTRIG8 (2<<4)
#define S5PV210_UFCON_RXTRIG16 (3<<4)
#define S5PV210_UFCON_RXTRIG32 (4<<4)
#define S5PV210_UFCON_RXTRIG64 (5<<4)
#define S5PV210_UFCON_RXTRIG128 (6<<4)
#define S5PV210_UFCON_RXTRIG256 (7<<4)

#define S5PV210_UFSTAT_TXFULL (1<<24)
#define S5PV210_UFSTAT_RXFULL (1<<8)
#define S5PV210_UFSTAT_TXMASK (255<<16)
#define S5PV210_UFSTAT_TXSHIFT (16)
#define S5PV210_UFSTAT_RXMASK (255<<0)
#define S5PV210_UFSTAT_RXSHIFT (0)

#ifndef __ASSEMBLY__

/* struct s3c24xx_uart_clksrc
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2 changes: 1 addition & 1 deletion trunk/arch/arm/plat-samsung/adc.c
Original file line number Diff line number Diff line change
Expand Up @@ -295,7 +295,7 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw)
}

exit:
if (platform_get_device_id(client->pdev)->driver_data == TYPE_S3C64XX) {
if (platform_get_device_id(adc->pdev)->driver_data == TYPE_S3C64XX) {
/* Clear ADC interrupt */
writel(0, adc->regs + S3C64XX_ADCCLRINT);
}
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22 changes: 20 additions & 2 deletions trunk/arch/arm/plat-samsung/clock.c
Original file line number Diff line number Diff line change
Expand Up @@ -307,6 +307,12 @@ struct clk s3c24xx_uclk = {

/* initialise the clock system */

/**
* s3c24xx_register_clock() - register a clock
* @clk: The clock to register
*
* Add the specified clock to the list of clocks known by the system.
*/
int s3c24xx_register_clock(struct clk *clk)
{
if (clk->enable == NULL)
Expand All @@ -324,13 +330,25 @@ int s3c24xx_register_clock(struct clk *clk)
return 0;
}

/**
* s3c24xx_register_clocks() - register an array of clock pointers
* @clks: Pointer to an array of struct clk pointers
* @nr_clks: The number of clocks in the @clks array.
*
* Call s3c24xx_register_clock() for all the clock pointers contained
* in the @clks list. Returns the number of failures.
*/
int s3c24xx_register_clocks(struct clk **clks, int nr_clks)
{
int fails = 0;

for (; nr_clks > 0; nr_clks--, clks++) {
if (s3c24xx_register_clock(*clks) < 0)
if (s3c24xx_register_clock(*clks) < 0) {
struct clk *clk = *clks;
printk(KERN_ERR "%s: failed to register %p: %s\n",
__func__, clk, clk->name);
fails++;
}
}

return fails;
Expand All @@ -344,7 +362,7 @@ int s3c24xx_register_clocks(struct clk **clks, int nr_clks)
* Call s3c24xx_register_clock() on the @clkp array given, printing an
* error if it fails to register the clock (unlikely).
*/
void __initdata s3c_register_clocks(struct clk *clkp, int nr_clks)
void __init s3c_register_clocks(struct clk *clkp, int nr_clks)
{
int ret;

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9 changes: 8 additions & 1 deletion trunk/drivers/serial/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -459,7 +459,7 @@ config SERIAL_SAMSUNG_UARTS
int
depends on ARM && PLAT_S3C
default 2 if ARCH_S3C2400
default 4 if ARCH_S5P6440 || ARCH_S5PC1XX || ARCH_S3C64XX || CPU_S3C2443
default 4 if ARCH_S5P6440 || ARCH_S5PC1XX || ARCH_S5PV210 || ARCH_S3C64XX || CPU_S3C2443
default 3
help
Select the number of available UART ports for the Samsung S3C
Expand Down Expand Up @@ -540,6 +540,13 @@ config SERIAL_S5PC100
help
Serial port support for the Samsung S5PC100 SoCs

config SERIAL_S5PV210
tristate "Samsung S5PV210 Serial port support"
depends on SERIAL_SAMSUNG && CPU_S5PV210
default y
help
Serial port support for Samsung's S5P Family of SoC's

config SERIAL_MAX3100
tristate "MAX3100 support"
depends on SPI
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1 change: 1 addition & 0 deletions trunk/drivers/serial/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,7 @@ obj-$(CONFIG_SERIAL_S3C2440) += s3c2440.o
obj-$(CONFIG_SERIAL_S3C24A0) += s3c24a0.o
obj-$(CONFIG_SERIAL_S3C6400) += s3c6400.o
obj-$(CONFIG_SERIAL_S5PC100) += s3c6400.o
obj-$(CONFIG_SERIAL_S5PV210) += s5pv210.o
obj-$(CONFIG_SERIAL_MAX3100) += max3100.o
obj-$(CONFIG_SERIAL_IP22_ZILOG) += ip22zilog.o
obj-$(CONFIG_SERIAL_MUX) += mux.o
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154 changes: 154 additions & 0 deletions trunk/drivers/serial/s5pv210.c
Original file line number Diff line number Diff line change
@@ -0,0 +1,154 @@
/* linux/drivers/serial/s5pv210.c
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* Based on drivers/serial/s3c6400.c
*
* Driver for Samsung S5PV210 SoC UARTs.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/

#include <linux/module.h>
#include <linux/ioport.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/serial_core.h>
#include <linux/serial.h>

#include <asm/irq.h>
#include <mach/hardware.h>
#include <plat/regs-serial.h>
#include "samsung.h"

static int s5pv210_serial_setsource(struct uart_port *port,
struct s3c24xx_uart_clksrc *clk)
{
unsigned long ucon = rd_regl(port, S3C2410_UCON);

if (strcmp(clk->name, "pclk") == 0)
ucon &= ~S5PV210_UCON_CLKMASK;
else if (strcmp(clk->name, "uclk1") == 0)
ucon |= S5PV210_UCON_CLKMASK;
else {
printk(KERN_ERR "unknown clock source %s\n", clk->name);
return -EINVAL;
}

wr_regl(port, S3C2410_UCON, ucon);
return 0;
}


static int s5pv210_serial_getsource(struct uart_port *port,
struct s3c24xx_uart_clksrc *clk)
{
u32 ucon = rd_regl(port, S3C2410_UCON);

clk->divisor = 1;

switch (ucon & S5PV210_UCON_CLKMASK) {
case S5PV210_UCON_PCLK:
clk->name = "pclk";
break;
case S5PV210_UCON_UCLK:
clk->name = "uclk1";
break;
}

return 0;
}

static int s5pv210_serial_resetport(struct uart_port *port,
struct s3c2410_uartcfg *cfg)
{
unsigned long ucon = rd_regl(port, S3C2410_UCON);

ucon &= S5PV210_UCON_CLKMASK;
wr_regl(port, S3C2410_UCON, ucon | cfg->ucon);
wr_regl(port, S3C2410_ULCON, cfg->ulcon);

/* reset both fifos */
wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
wr_regl(port, S3C2410_UFCON, cfg->ufcon);

return 0;
}

#define S5PV210_UART_DEFAULT_INFO(fifo_size) \
.name = "Samsung S5PV210 UART0", \
.type = PORT_S3C6400, \
.fifosize = fifo_size, \
.has_divslot = 1, \
.rx_fifomask = S5PV210_UFSTAT_RXMASK, \
.rx_fifoshift = S5PV210_UFSTAT_RXSHIFT, \
.rx_fifofull = S5PV210_UFSTAT_RXFULL, \
.tx_fifofull = S5PV210_UFSTAT_TXFULL, \
.tx_fifomask = S5PV210_UFSTAT_TXMASK, \
.tx_fifoshift = S5PV210_UFSTAT_TXSHIFT, \
.get_clksrc = s5pv210_serial_getsource, \
.set_clksrc = s5pv210_serial_setsource, \
.reset_port = s5pv210_serial_resetport

static struct s3c24xx_uart_info s5p_port_fifo256 = {
S5PV210_UART_DEFAULT_INFO(256),
};

static struct s3c24xx_uart_info s5p_port_fifo64 = {
S5PV210_UART_DEFAULT_INFO(64),
};

static struct s3c24xx_uart_info s5p_port_fifo16 = {
S5PV210_UART_DEFAULT_INFO(16),
};

static struct s3c24xx_uart_info *s5p_uart_inf[] = {
[0] = &s5p_port_fifo256,
[1] = &s5p_port_fifo64,
[2] = &s5p_port_fifo16,
[3] = &s5p_port_fifo16,
};

/* device management */
static int s5p_serial_probe(struct platform_device *pdev)
{
return s3c24xx_serial_probe(pdev, s5p_uart_inf[pdev->id]);
}

static struct platform_driver s5p_serial_drv = {
.probe = s5p_serial_probe,
.remove = __devexit_p(s3c24xx_serial_remove),
.driver = {
.name = "s5pv210-uart",
.owner = THIS_MODULE,
},
};

static int __init s5pv210_serial_console_init(void)
{
return s3c24xx_serial_initconsole(&s5p_serial_drv, s5p_uart_inf);
}

console_initcall(s5pv210_serial_console_init);

static int __init s5p_serial_init(void)
{
return s3c24xx_serial_init(&s5p_serial_drv, *s5p_uart_inf);
}

static void __exit s5p_serial_exit(void)
{
platform_driver_unregister(&s5p_serial_drv);
}

module_init(s5p_serial_init);
module_exit(s5p_serial_exit);

MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:s5pv210-uart");
MODULE_DESCRIPTION("Samsung S5PV210 UART Driver support");
MODULE_AUTHOR("Thomas Abraham <thomas.ab@samsung.com>");

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