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Diffstat (limited to 'arch/arm/mach-s5p64x0')
-rw-r--r--arch/arm/mach-s5p64x0/dev-spi.c8
-rw-r--r--arch/arm/mach-s5p64x0/dma.c5
-rw-r--r--arch/arm/mach-s5p64x0/gpiolib.c508
-rw-r--r--arch/arm/mach-s5p64x0/irq-eint.c3
-rw-r--r--arch/arm/mach-s5p64x0/mach-smdk6440.c8
-rw-r--r--arch/arm/mach-s5p64x0/mach-smdk6450.c8
6 files changed, 517 insertions, 23 deletions
diff --git a/arch/arm/mach-s5p64x0/dev-spi.c b/arch/arm/mach-s5p64x0/dev-spi.c
index ac825e82632..1fd9c79c7db 100644
--- a/arch/arm/mach-s5p64x0/dev-spi.c
+++ b/arch/arm/mach-s5p64x0/dev-spi.c
@@ -21,6 +21,7 @@
#include <mach/regs-clock.h>
#include <mach/spi-clocks.h>
+#include <plat/cpu.h>
#include <plat/s3c64xx-spi.h>
#include <plat/gpio-cfg.h>
@@ -185,11 +186,8 @@ struct platform_device s5p64x0_device_spi1 = {
void __init s5p64x0_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
{
- unsigned int id;
struct s3c64xx_spi_info *pd;
- id = __raw_readl(S5P64X0_SYS_ID) & 0xFF000;
-
/* Reject invalid configuration */
if (!num_cs || src_clk_nr < 0
|| src_clk_nr > S5P64X0_SPI_SRCCLK_SCLK) {
@@ -199,7 +197,7 @@ void __init s5p64x0_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
switch (cntrlr) {
case 0:
- if (id == 0x50000)
+ if (soc_is_s5p6450())
pd = &s5p6450_spi0_pdata;
else
pd = &s5p6440_spi0_pdata;
@@ -207,7 +205,7 @@ void __init s5p64x0_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
s5p64x0_device_spi0.dev.platform_data = pd;
break;
case 1:
- if (id == 0x50000)
+ if (soc_is_s5p6450())
pd = &s5p6450_spi1_pdata;
else
pd = &s5p6440_spi1_pdata;
diff --git a/arch/arm/mach-s5p64x0/dma.c b/arch/arm/mach-s5p64x0/dma.c
index aebf3fcb1eb..442dd4ad12d 100644
--- a/arch/arm/mach-s5p64x0/dma.c
+++ b/arch/arm/mach-s5p64x0/dma.c
@@ -32,6 +32,7 @@
#include <mach/regs-clock.h>
#include <mach/dma.h>
+#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/irqs.h>
@@ -226,9 +227,7 @@ struct amba_device s5p64x0_device_pdma = {
static int __init s5p64x0_dma_init(void)
{
- unsigned int id = __raw_readl(S5P64X0_SYS_ID) & 0xFF000;
-
- if (id == 0x50000)
+ if (soc_is_s5p6450())
s5p64x0_device_pdma.dev.platform_data = &s5p6450_pdma_pdata;
else
s5p64x0_device_pdma.dev.platform_data = &s5p6440_pdma_pdata;
diff --git a/arch/arm/mach-s5p64x0/gpiolib.c b/arch/arm/mach-s5p64x0/gpiolib.c
new file mode 100644
index 00000000000..700dac6c43f
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/gpiolib.c
@@ -0,0 +1,508 @@
+/* linux/arch/arm/mach-s5p64x0/gpiolib.c
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * S5P64X0 - GPIOlib support
+ *
+ * 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/kernel.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+
+#include <mach/map.h>
+#include <mach/regs-gpio.h>
+#include <mach/regs-clock.h>
+
+#include <plat/cpu.h>
+#include <plat/gpio-core.h>
+#include <plat/gpio-cfg.h>
+#include <plat/gpio-cfg-helpers.h>
+
+/*
+ * S5P6440 GPIO bank summary:
+ *
+ * Bank GPIOs Style SlpCon ExtInt Group
+ * A 6 4Bit Yes 1
+ * B 7 4Bit Yes 1
+ * C 8 4Bit Yes 2
+ * F 2 2Bit Yes 4 [1]
+ * G 7 4Bit Yes 5
+ * H 10 4Bit[2] Yes 6
+ * I 16 2Bit Yes None
+ * J 12 2Bit Yes None
+ * N 16 2Bit No IRQ_EINT
+ * P 8 2Bit Yes 8
+ * R 15 4Bit[2] Yes 8
+ *
+ * S5P6450 GPIO bank summary:
+ *
+ * Bank GPIOs Style SlpCon ExtInt Group
+ * A 6 4Bit Yes 1
+ * B 7 4Bit Yes 1
+ * C 8 4Bit Yes 2
+ * D 8 4Bit Yes None
+ * F 2 2Bit Yes None
+ * G 14 4Bit[2] Yes 5
+ * H 10 4Bit[2] Yes 6
+ * I 16 2Bit Yes None
+ * J 12 2Bit Yes None
+ * K 5 4Bit Yes None
+ * N 16 2Bit No IRQ_EINT
+ * P 11 2Bit Yes 8
+ * Q 14 2Bit Yes None
+ * R 15 4Bit[2] Yes None
+ * S 8 2Bit Yes None
+ *
+ * [1] BANKF pins 14,15 do not form part of the external interrupt sources
+ * [2] BANK has two control registers, GPxCON0 and GPxCON1
+ */
+
+static int s5p64x0_gpiolib_rbank_4bit2_input(struct gpio_chip *chip,
+ unsigned int offset)
+{
+ struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
+ void __iomem *base = ourchip->base;
+ void __iomem *regcon = base;
+ unsigned long con;
+ unsigned long flags;
+
+ switch (offset) {
+ case 6:
+ offset += 1;
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ regcon -= 4;
+ break;
+ default:
+ offset -= 7;
+ break;
+ }
+
+ s3c_gpio_lock(ourchip, flags);
+
+ con = __raw_readl(regcon);
+ con &= ~(0xf << con_4bit_shift(offset));
+ __raw_writel(con, regcon);
+
+ s3c_gpio_unlock(ourchip, flags);
+
+ return 0;
+}
+
+static int s5p64x0_gpiolib_rbank_4bit2_output(struct gpio_chip *chip,
+ unsigned int offset, int value)
+{
+ struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
+ void __iomem *base = ourchip->base;
+ void __iomem *regcon = base;
+ unsigned long con;
+ unsigned long dat;
+ unsigned long flags;
+ unsigned con_offset = offset;
+
+ switch (con_offset) {
+ case 6:
+ con_offset += 1;
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ regcon -= 4;
+ break;
+ default:
+ con_offset -= 7;
+ break;
+ }
+
+ s3c_gpio_lock(ourchip, flags);
+
+ con = __raw_readl(regcon);
+ con &= ~(0xf << con_4bit_shift(con_offset));
+ con |= 0x1 << con_4bit_shift(con_offset);
+
+ dat = __raw_readl(base + GPIODAT_OFF);
+ if (value)
+ dat |= 1 << offset;
+ else
+ dat &= ~(1 << offset);
+
+ __raw_writel(con, regcon);
+ __raw_writel(dat, base + GPIODAT_OFF);
+
+ s3c_gpio_unlock(ourchip, flags);
+
+ return 0;
+}
+
+int s5p64x0_gpio_setcfg_4bit_rbank(struct s3c_gpio_chip *chip,
+ unsigned int off, unsigned int cfg)
+{
+ void __iomem *reg = chip->base;
+ unsigned int shift;
+ u32 con;
+
+ switch (off) {
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ shift = (off & 7) * 4;
+ reg -= 4;
+ break;
+ case 6:
+ shift = ((off + 1) & 7) * 4;
+ reg -= 4;
+ default:
+ shift = ((off + 1) & 7) * 4;
+ break;
+ }
+
+ if (s3c_gpio_is_cfg_special(cfg)) {
+ cfg &= 0xf;
+ cfg <<= shift;
+ }
+
+ con = __raw_readl(reg);
+ con &= ~(0xf << shift);
+ con |= cfg;
+ __raw_writel(con, reg);
+
+ return 0;
+}
+
+static struct s3c_gpio_cfg s5p64x0_gpio_cfgs[] = {
+ {
+ .cfg_eint = 0,
+ }, {
+ .cfg_eint = 7,
+ }, {
+ .cfg_eint = 3,
+ .set_config = s5p64x0_gpio_setcfg_4bit_rbank,
+ }, {
+ .cfg_eint = 0,
+ .set_config = s3c_gpio_setcfg_s3c24xx,
+ .get_config = s3c_gpio_getcfg_s3c24xx,
+ }, {
+ .cfg_eint = 2,
+ .set_config = s3c_gpio_setcfg_s3c24xx,
+ .get_config = s3c_gpio_getcfg_s3c24xx,
+ }, {
+ .cfg_eint = 3,
+ .set_config = s3c_gpio_setcfg_s3c24xx,
+ .get_config = s3c_gpio_getcfg_s3c24xx,
+ },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_4bit[] = {
+ {
+ .base = S5P64X0_GPA_BASE,
+ .config = &s5p64x0_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPA(0),
+ .ngpio = S5P6440_GPIO_A_NR,
+ .label = "GPA",
+ },
+ }, {
+ .base = S5P64X0_GPB_BASE,
+ .config = &s5p64x0_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPB(0),
+ .ngpio = S5P6440_GPIO_B_NR,
+ .label = "GPB",
+ },
+ }, {
+ .base = S5P64X0_GPC_BASE,
+ .config = &s5p64x0_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPC(0),
+ .ngpio = S5P6440_GPIO_C_NR,
+ .label = "GPC",
+ },
+ }, {
+ .base = S5P64X0_GPG_BASE,
+ .config = &s5p64x0_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPG(0),
+ .ngpio = S5P6440_GPIO_G_NR,
+ .label = "GPG",
+ },
+ },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_4bit2[] = {
+ {
+ .base = S5P64X0_GPH_BASE + 0x4,
+ .config = &s5p64x0_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPH(0),
+ .ngpio = S5P6440_GPIO_H_NR,
+ .label = "GPH",
+ },
+ },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_rbank_4bit2[] = {
+ {
+ .base = S5P64X0_GPR_BASE + 0x4,
+ .config = &s5p64x0_gpio_cfgs[2],
+ .chip = {
+ .base = S5P6440_GPR(0),
+ .ngpio = S5P6440_GPIO_R_NR,
+ .label = "GPR",
+ },
+ },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_2bit[] = {
+ {
+ .base = S5P64X0_GPF_BASE,
+ .config = &s5p64x0_gpio_cfgs[5],
+ .chip = {
+ .base = S5P6440_GPF(0),
+ .ngpio = S5P6440_GPIO_F_NR,
+ .label = "GPF",
+ },
+ }, {
+ .base = S5P64X0_GPI_BASE,
+ .config = &s5p64x0_gpio_cfgs[3],
+ .chip = {
+ .base = S5P6440_GPI(0),
+ .ngpio = S5P6440_GPIO_I_NR,
+ .label = "GPI",
+ },
+ }, {
+ .base = S5P64X0_GPJ_BASE,
+ .config = &s5p64x0_gpio_cfgs[3],
+ .chip = {
+ .base = S5P6440_GPJ(0),
+ .ngpio = S5P6440_GPIO_J_NR,
+ .label = "GPJ",
+ },
+ }, {
+ .base = S5P64X0_GPN_BASE,
+ .config = &s5p64x0_gpio_cfgs[4],
+ .chip = {
+ .base = S5P6440_GPN(0),
+ .ngpio = S5P6440_GPIO_N_NR,
+ .label = "GPN",
+ },
+ }, {
+ .base = S5P64X0_GPP_BASE,
+ .config = &s5p64x0_gpio_cfgs[5],
+ .chip = {
+ .base = S5P6440_GPP(0),
+ .ngpio = S5P6440_GPIO_P_NR,
+ .label = "GPP",
+ },
+ },
+};
+
+static struct s3c_gpio_chip s5p6450_gpio_4bit[] = {
+ {
+ .base = S5P64X0_GPA_BASE,
+ .config = &s5p64x0_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6450_GPA(0),
+ .ngpio = S5P6450_GPIO_A_NR,
+ .label = "GPA",
+ },
+ }, {
+ .base = S5P64X0_GPB_BASE,
+ .config = &s5p64x0_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6450_GPB(0),
+ .ngpio = S5P6450_GPIO_B_NR,
+ .label = "GPB",
+ },
+ }, {
+ .base = S5P64X0_GPC_BASE,
+ .config = &s5p64x0_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6450_GPC(0),
+ .ngpio = S5P6450_GPIO_C_NR,
+ .label = "GPC",
+ },
+ }, {
+ .base = S5P6450_GPD_BASE,
+ .config = &s5p64x0_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6450_GPD(0),
+ .ngpio = S5P6450_GPIO_D_NR,
+ .label = "GPD",
+ },
+ }, {
+ .base = S5P6450_GPK_BASE,
+ .config = &s5p64x0_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6450_GPK(0),
+ .ngpio = S5P6450_GPIO_K_NR,
+ .label = "GPK",
+ },
+ },
+};
+
+static struct s3c_gpio_chip s5p6450_gpio_4bit2[] = {
+ {
+ .base = S5P64X0_GPG_BASE + 0x4,
+ .config = &s5p64x0_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6450_GPG(0),
+ .ngpio = S5P6450_GPIO_G_NR,
+ .label = "GPG",
+ },
+ }, {
+ .base = S5P64X0_GPH_BASE + 0x4,
+ .config = &s5p64x0_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6450_GPH(0),
+ .ngpio = S5P6450_GPIO_H_NR,
+ .label = "GPH",
+ },
+ },
+};
+
+static struct s3c_gpio_chip s5p6450_gpio_rbank_4bit2[] = {
+ {
+ .base = S5P64X0_GPR_BASE + 0x4,
+ .config = &s5p64x0_gpio_cfgs[2],
+ .chip = {
+ .base = S5P6450_GPR(0),
+ .ngpio = S5P6450_GPIO_R_NR,
+ .label = "GPR",
+ },
+ },
+};
+
+static struct s3c_gpio_chip s5p6450_gpio_2bit[] = {
+ {
+ .base = S5P64X0_GPF_BASE,
+ .config = &s5p64x0_gpio_cfgs[5],
+ .chip = {
+ .base = S5P6450_GPF(0),
+ .ngpio = S5P6450_GPIO_F_NR,
+ .label = "GPF",
+ },
+ }, {
+ .base = S5P64X0_GPI_BASE,
+ .config = &s5p64x0_gpio_cfgs[3],
+ .chip = {
+ .base = S5P6450_GPI(0),
+ .ngpio = S5P6450_GPIO_I_NR,
+ .label = "GPI",
+ },
+ }, {
+ .base = S5P64X0_GPJ_BASE,
+ .config = &s5p64x0_gpio_cfgs[3],
+ .chip = {
+ .base = S5P6450_GPJ(0),
+ .ngpio = S5P6450_GPIO_J_NR,
+ .label = "GPJ",
+ },
+ }, {
+ .base = S5P64X0_GPN_BASE,
+ .config = &s5p64x0_gpio_cfgs[4],
+ .chip = {
+ .base = S5P6450_GPN(0),
+ .ngpio = S5P6450_GPIO_N_NR,
+ .label = "GPN",
+ },
+ }, {
+ .base = S5P64X0_GPP_BASE,
+ .config = &s5p64x0_gpio_cfgs[5],
+ .chip = {
+ .base = S5P6450_GPP(0),
+ .ngpio = S5P6450_GPIO_P_NR,
+ .label = "GPP",
+ },
+ }, {
+ .base = S5P6450_GPQ_BASE,
+ .config = &s5p64x0_gpio_cfgs[4],
+ .chip = {
+ .base = S5P6450_GPQ(0),
+ .ngpio = S5P6450_GPIO_Q_NR,
+ .label = "GPQ",
+ },
+ }, {
+ .base = S5P6450_GPS_BASE,
+ .config = &s5p64x0_gpio_cfgs[5],
+ .chip = {
+ .base = S5P6450_GPS(0),
+ .ngpio = S5P6450_GPIO_S_NR,
+ .label = "GPS",
+ },
+ },
+};
+
+void __init s5p64x0_gpiolib_set_cfg(struct s3c_gpio_cfg *chipcfg, int nr_chips)
+{
+ for (; nr_chips > 0; nr_chips--, chipcfg++) {
+ if (!chipcfg->set_config)
+ chipcfg->set_config = s3c_gpio_setcfg_s3c64xx_4bit;
+ if (!chipcfg->get_config)
+ chipcfg->get_config = s3c_gpio_getcfg_s3c64xx_4bit;
+ if (!chipcfg->set_pull)
+ chipcfg->set_pull = s3c_gpio_setpull_updown;
+ if (!chipcfg->get_pull)
+ chipcfg->get_pull = s3c_gpio_getpull_updown;
+ }
+}
+
+static void __init s5p64x0_gpio_add_rbank_4bit2(struct s3c_gpio_chip *chip,
+ int nr_chips)
+{
+ for (; nr_chips > 0; nr_chips--, chip++) {
+ chip->chip.direction_input = s5p64x0_gpiolib_rbank_4bit2_input;
+ chip->chip.direction_output =
+ s5p64x0_gpiolib_rbank_4bit2_output;
+ s3c_gpiolib_add(chip);
+ }
+}
+
+static int __init s5p64x0_gpiolib_init(void)
+{
+ s5p64x0_gpiolib_set_cfg(s5p64x0_gpio_cfgs,
+ ARRAY_SIZE(s5p64x0_gpio_cfgs));
+
+ if (soc_is_s5p6450()) {
+ samsung_gpiolib_add_2bit_chips(s5p6450_gpio_2bit,
+ ARRAY_SIZE(s5p6450_gpio_2bit));
+
+ samsung_gpiolib_add_4bit_chips(s5p6450_gpio_4bit,
+ ARRAY_SIZE(s5p6450_gpio_4bit));
+
+ samsung_gpiolib_add_4bit2_chips(s5p6450_gpio_4bit2,
+ ARRAY_SIZE(s5p6450_gpio_4bit2));
+
+ s5p64x0_gpio_add_rbank_4bit2(s5p6450_gpio_rbank_4bit2,
+ ARRAY_SIZE(s5p6450_gpio_rbank_4bit2));
+ } else {
+ samsung_gpiolib_add_2bit_chips(s5p6440_gpio_2bit,
+ ARRAY_SIZE(s5p6440_gpio_2bit));
+
+ samsung_gpiolib_add_4bit_chips(s5p6440_gpio_4bit,
+ ARRAY_SIZE(s5p6440_gpio_4bit));
+
+ samsung_gpiolib_add_4bit2_chips(s5p6440_gpio_4bit2,
+ ARRAY_SIZE(s5p6440_gpio_4bit2));
+
+ s5p64x0_gpio_add_rbank_4bit2(s5p6440_gpio_rbank_4bit2,
+ ARRAY_SIZE(s5p6440_gpio_rbank_4bit2));
+ }
+
+ return 0;
+}
+core_initcall(s5p64x0_gpiolib_init);
diff --git a/arch/arm/mach-s5p64x0/irq-eint.c b/arch/arm/mach-s5p64x0/irq-eint.c
index fe7380f5c3c..494e1a8f6f6 100644
--- a/arch/arm/mach-s5p64x0/irq-eint.c
+++ b/arch/arm/mach-s5p64x0/irq-eint.c
@@ -17,6 +17,7 @@
#include <linux/irq.h>
#include <linux/io.h>
+#include <plat/cpu.h>
#include <plat/regs-irqtype.h>
#include <plat/gpio-cfg.h>
@@ -67,7 +68,7 @@ static int s5p64x0_irq_eint_set_type(struct irq_data *data, unsigned int type)
__raw_writel(ctrl, S5P64X0_EINT0CON0);
/* Configure the GPIO pin for 6450 or 6440 based on CPU ID */
- if (0x50000 == (__raw_readl(S5P64X0_SYS_ID) & 0xFF000))
+ if (soc_is_s5p6450())
s3c_gpio_cfgpin(S5P6450_GPN(offs), S3C_GPIO_SFN(2));
else
s3c_gpio_cfgpin(S5P6440_GPN(offs), S3C_GPIO_SFN(2));
diff --git a/arch/arm/mach-s5p64x0/mach-smdk6440.c b/arch/arm/mach-s5p64x0/mach-smdk6440.c
index 39026e9d5f3..b0465d4e84e 100644
--- a/arch/arm/mach-s5p64x0/mach-smdk6440.c
+++ b/arch/arm/mach-s5p64x0/mach-smdk6440.c
@@ -189,12 +189,6 @@ static struct i2c_board_info smdk6440_i2c_devs1[] __initdata = {
/* To be populated */
};
-static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
- .delay = 10000,
- .presc = 49,
- .oversampling_shift = 2,
-};
-
/* LCD Backlight data */
static struct samsung_bl_gpio_info smdk6440_bl_gpio_info = {
.no = S5P6440_GPF(15),
@@ -226,7 +220,7 @@ static void s5p6440_set_lcd_interface(void)
static void __init smdk6440_machine_init(void)
{
- s3c24xx_ts_set_platdata(&s3c_ts_platform);
+ s3c24xx_ts_set_platdata(NULL);
s3c_i2c0_set_platdata(&s5p6440_i2c0_data);
s3c_i2c1_set_platdata(&s5p6440_i2c1_data);
diff --git a/arch/arm/mach-s5p64x0/mach-smdk6450.c b/arch/arm/mach-s5p64x0/mach-smdk6450.c
index 92b5de1465b..2a69caa70af 100644
--- a/arch/arm/mach-s5p64x0/mach-smdk6450.c
+++ b/arch/arm/mach-s5p64x0/mach-smdk6450.c
@@ -209,12 +209,6 @@ static struct i2c_board_info smdk6450_i2c_devs1[] __initdata = {
{ I2C_BOARD_INFO("24c128", 0x57), },/* Samsung S524AD0XD1 EEPROM */
};
-static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
- .delay = 10000,
- .presc = 49,
- .oversampling_shift = 2,
-};
-
/* LCD Backlight data */
static struct samsung_bl_gpio_info smdk6450_bl_gpio_info = {
.no = S5P6450_GPF(15),
@@ -246,7 +240,7 @@ static void s5p6450_set_lcd_interface(void)
static void __init smdk6450_machine_init(void)
{
- s3c24xx_ts_set_platdata(&s3c_ts_platform);
+ s3c24xx_ts_set_platdata(NULL);
s3c_i2c0_set_platdata(&s5p6450_i2c0_data);
s3c_i2c1_set_platdata(&s5p6450_i2c1_data);