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authorMarek Szyprowski <m.szyprowski@samsung.com>2010-05-18 12:38:41 +0200
committerBen Dooks <ben-linux@fluff.org>2010-05-19 18:23:11 +0900
commit7904449021de399a03ec8a32e536d031a61def5b (patch)
tree610c804c4bd185147e5507f28de5b458121ea015 /arch/arm/mach-s5pc100
parent252b8efeba9cd1e28ade902275b27133114d2382 (diff)
downloadlinux-7904449021de399a03ec8a32e536d031a61def5b.tar.bz2
ARM: S5PC100: Move gpio support from plat-s5pc1xx to mach-s5pc100
Move gpio-lib support from plat-s5pc1xx to mach-s5pc100. Only basic gpio functionality is now supported. Gpio interrupts are disabled temporarly and will be added later. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/mach-s5pc100')
-rw-r--r--arch/arm/mach-s5pc100/Makefile2
-rw-r--r--arch/arm/mach-s5pc100/gpiolib.c428
-rw-r--r--arch/arm/mach-s5pc100/include/mach/regs-gpio.h70
-rw-r--r--arch/arm/mach-s5pc100/mach-smdkc100.c1
4 files changed, 499 insertions, 2 deletions
diff --git a/arch/arm/mach-s5pc100/Makefile b/arch/arm/mach-s5pc100/Makefile
index 809ff10f768f..4199ce2b161a 100644
--- a/arch/arm/mach-s5pc100/Makefile
+++ b/arch/arm/mach-s5pc100/Makefile
@@ -11,7 +11,7 @@ obj- :=
# Core support for S5PC100 system
-obj-$(CONFIG_CPU_S5PC100) += cpu.o
+obj-$(CONFIG_CPU_S5PC100) += cpu.o gpiolib.o
# Helper and device support
diff --git a/arch/arm/mach-s5pc100/gpiolib.c b/arch/arm/mach-s5pc100/gpiolib.c
new file mode 100644
index 000000000000..c8e8336a3a12
--- /dev/null
+++ b/arch/arm/mach-s5pc100/gpiolib.c
@@ -0,0 +1,428 @@
+/*
+ * arch/arm/plat-s5pc1xx/gpiolib.c
+ *
+ * Copyright 2009 Samsung Electronics Co
+ * Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * S5PC1XX - 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 <plat/gpio-core.h>
+#include <plat/gpio-cfg.h>
+#include <plat/gpio-cfg-helpers.h>
+
+/* S5PC100 GPIO bank summary:
+ *
+ * Bank GPIOs Style INT Type
+ * A0 8 4Bit GPIO_INT0
+ * A1 5 4Bit GPIO_INT1
+ * B 8 4Bit GPIO_INT2
+ * C 5 4Bit GPIO_INT3
+ * D 7 4Bit GPIO_INT4
+ * E0 8 4Bit GPIO_INT5
+ * E1 6 4Bit GPIO_INT6
+ * F0 8 4Bit GPIO_INT7
+ * F1 8 4Bit GPIO_INT8
+ * F2 8 4Bit GPIO_INT9
+ * F3 4 4Bit GPIO_INT10
+ * G0 8 4Bit GPIO_INT11
+ * G1 3 4Bit GPIO_INT12
+ * G2 7 4Bit GPIO_INT13
+ * G3 7 4Bit GPIO_INT14
+ * H0 8 4Bit WKUP_INT
+ * H1 8 4Bit WKUP_INT
+ * H2 8 4Bit WKUP_INT
+ * H3 8 4Bit WKUP_INT
+ * I 8 4Bit GPIO_INT15
+ * J0 8 4Bit GPIO_INT16
+ * J1 5 4Bit GPIO_INT17
+ * J2 8 4Bit GPIO_INT18
+ * J3 8 4Bit GPIO_INT19
+ * J4 4 4Bit GPIO_INT20
+ * K0 8 4Bit None
+ * K1 6 4Bit None
+ * K2 8 4Bit None
+ * K3 8 4Bit None
+ * L0 8 4Bit None
+ * L1 8 4Bit None
+ * L2 8 4Bit None
+ * L3 8 4Bit None
+ */
+
+#if 0
+static int s5pc1xx_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset)
+{
+ return S3C_IRQ_GPIO(chip->base + offset);
+}
+
+static int s5pc1xx_gpiolib_to_eint(struct gpio_chip *chip, unsigned int offset)
+{
+ int base;
+
+ base = chip->base - S5PC100_GPH0(0);
+ if (base == 0)
+ return IRQ_EINT(offset);
+ base = chip->base - S5PC100_GPH1(0);
+ if (base == 0)
+ return IRQ_EINT(8 + offset);
+ base = chip->base - S5PC100_GPH2(0);
+ if (base == 0)
+ return IRQ_EINT(16 + offset);
+ base = chip->base - S5PC100_GPH3(0);
+ if (base == 0)
+ return IRQ_EINT(24 + offset);
+ return -EINVAL;
+}
+#endif
+static struct s3c_gpio_cfg gpio_cfg = {
+ .set_config = s3c_gpio_setcfg_s3c64xx_4bit,
+ .set_pull = s3c_gpio_setpull_updown,
+ .get_pull = s3c_gpio_getpull_updown,
+};
+
+static struct s3c_gpio_cfg gpio_cfg_eint = {
+ .cfg_eint = 0xf,
+ .set_config = s3c_gpio_setcfg_s3c64xx_4bit,
+ .set_pull = s3c_gpio_setpull_updown,
+ .get_pull = s3c_gpio_getpull_updown,
+};
+
+static struct s3c_gpio_cfg gpio_cfg_noint = {
+ .set_config = s3c_gpio_setcfg_s3c64xx_4bit,
+ .set_pull = s3c_gpio_setpull_updown,
+ .get_pull = s3c_gpio_getpull_updown,
+};
+
+static struct s3c_gpio_chip s5pc100_gpio_chips[] = {
+ {
+ .base = S5PC100_GPA0_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPA0(0),
+ .ngpio = S5PC100_GPIO_A0_NR,
+ .label = "GPA0",
+ },
+ }, {
+ .base = S5PC100_GPA1_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPA1(0),
+ .ngpio = S5PC100_GPIO_A1_NR,
+ .label = "GPA1",
+ },
+ }, {
+ .base = S5PC100_GPB_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPB(0),
+ .ngpio = S5PC100_GPIO_B_NR,
+ .label = "GPB",
+ },
+ }, {
+ .base = S5PC100_GPC_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPC(0),
+ .ngpio = S5PC100_GPIO_C_NR,
+ .label = "GPC",
+ },
+ }, {
+ .base = S5PC100_GPD_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPD(0),
+ .ngpio = S5PC100_GPIO_D_NR,
+ .label = "GPD",
+ },
+ }, {
+ .base = S5PC100_GPE0_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPE0(0),
+ .ngpio = S5PC100_GPIO_E0_NR,
+ .label = "GPE0",
+ },
+ }, {
+ .base = S5PC100_GPE1_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPE1(0),
+ .ngpio = S5PC100_GPIO_E1_NR,
+ .label = "GPE1",
+ },
+ }, {
+ .base = S5PC100_GPF0_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPF0(0),
+ .ngpio = S5PC100_GPIO_F0_NR,
+ .label = "GPF0",
+ },
+ }, {
+ .base = S5PC100_GPF1_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPF1(0),
+ .ngpio = S5PC100_GPIO_F1_NR,
+ .label = "GPF1",
+ },
+ }, {
+ .base = S5PC100_GPF2_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPF2(0),
+ .ngpio = S5PC100_GPIO_F2_NR,
+ .label = "GPF2",
+ },
+ }, {
+ .base = S5PC100_GPF3_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPF3(0),
+ .ngpio = S5PC100_GPIO_F3_NR,
+ .label = "GPF3",
+ },
+ }, {
+ .base = S5PC100_GPG0_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPG0(0),
+ .ngpio = S5PC100_GPIO_G0_NR,
+ .label = "GPG0",
+ },
+ }, {
+ .base = S5PC100_GPG1_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPG1(0),
+ .ngpio = S5PC100_GPIO_G1_NR,
+ .label = "GPG1",
+ },
+ }, {
+ .base = S5PC100_GPG2_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPG2(0),
+ .ngpio = S5PC100_GPIO_G2_NR,
+ .label = "GPG2",
+ },
+ }, {
+ .base = S5PC100_GPG3_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPG3(0),
+ .ngpio = S5PC100_GPIO_G3_NR,
+ .label = "GPG3",
+ },
+ }, {
+ .base = S5PC100_GPH0_BASE,
+ .config = &gpio_cfg_eint,
+ .chip = {
+ .base = S5PC100_GPH0(0),
+ .ngpio = S5PC100_GPIO_H0_NR,
+ .label = "GPH0",
+ },
+ }, {
+ .base = S5PC100_GPH1_BASE,
+ .config = &gpio_cfg_eint,
+ .chip = {
+ .base = S5PC100_GPH1(0),
+ .ngpio = S5PC100_GPIO_H1_NR,
+ .label = "GPH1",
+ },
+ }, {
+ .base = S5PC100_GPH2_BASE,
+ .config = &gpio_cfg_eint,
+ .chip = {
+ .base = S5PC100_GPH2(0),
+ .ngpio = S5PC100_GPIO_H2_NR,
+ .label = "GPH2",
+ },
+ }, {
+ .base = S5PC100_GPH3_BASE,
+ .config = &gpio_cfg_eint,
+ .chip = {
+ .base = S5PC100_GPH3(0),
+ .ngpio = S5PC100_GPIO_H3_NR,
+ .label = "GPH3",
+ },
+ }, {
+ .base = S5PC100_GPI_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPI(0),
+ .ngpio = S5PC100_GPIO_I_NR,
+ .label = "GPI",
+ },
+ }, {
+ .base = S5PC100_GPJ0_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPJ0(0),
+ .ngpio = S5PC100_GPIO_J0_NR,
+ .label = "GPJ0",
+ },
+ }, {
+ .base = S5PC100_GPJ1_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPJ1(0),
+ .ngpio = S5PC100_GPIO_J1_NR,
+ .label = "GPJ1",
+ },
+ }, {
+ .base = S5PC100_GPJ2_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPJ2(0),
+ .ngpio = S5PC100_GPIO_J2_NR,
+ .label = "GPJ2",
+ },
+ }, {
+ .base = S5PC100_GPJ3_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPJ3(0),
+ .ngpio = S5PC100_GPIO_J3_NR,
+ .label = "GPJ3",
+ },
+ }, {
+ .base = S5PC100_GPJ4_BASE,
+ .config = &gpio_cfg,
+ .chip = {
+ .base = S5PC100_GPJ4(0),
+ .ngpio = S5PC100_GPIO_J4_NR,
+ .label = "GPJ4",
+ },
+ }, {
+ .base = S5PC100_GPK0_BASE,
+ .config = &gpio_cfg_noint,
+ .chip = {
+ .base = S5PC100_GPK0(0),
+ .ngpio = S5PC100_GPIO_K0_NR,
+ .label = "GPK0",
+ },
+ }, {
+ .base = S5PC100_GPK1_BASE,
+ .config = &gpio_cfg_noint,
+ .chip = {
+ .base = S5PC100_GPK1(0),
+ .ngpio = S5PC100_GPIO_K1_NR,
+ .label = "GPK1",
+ },
+ }, {
+ .base = S5PC100_GPK2_BASE,
+ .config = &gpio_cfg_noint,
+ .chip = {
+ .base = S5PC100_GPK2(0),
+ .ngpio = S5PC100_GPIO_K2_NR,
+ .label = "GPK2",
+ },
+ }, {
+ .base = S5PC100_GPK3_BASE,
+ .config = &gpio_cfg_noint,
+ .chip = {
+ .base = S5PC100_GPK3(0),
+ .ngpio = S5PC100_GPIO_K3_NR,
+ .label = "GPK3",
+ },
+ }, {
+ .base = S5PC100_GPL0_BASE,
+ .config = &gpio_cfg_noint,
+ .chip = {
+ .base = S5PC100_GPL0(0),
+ .ngpio = S5PC100_GPIO_L0_NR,
+ .label = "GPL0",
+ },
+ }, {
+ .base = S5PC100_GPL1_BASE,
+ .config = &gpio_cfg_noint,
+ .chip = {
+ .base = S5PC100_GPL1(0),
+ .ngpio = S5PC100_GPIO_L1_NR,
+ .label = "GPL1",
+ },
+ }, {
+ .base = S5PC100_GPL2_BASE,
+ .config = &gpio_cfg_noint,
+ .chip = {
+ .base = S5PC100_GPL2(0),
+ .ngpio = S5PC100_GPIO_L2_NR,
+ .label = "GPL2",
+ },
+ }, {
+ .base = S5PC100_GPL3_BASE,
+ .config = &gpio_cfg_noint,
+ .chip = {
+ .base = S5PC100_GPL3(0),
+ .ngpio = S5PC100_GPIO_L3_NR,
+ .label = "GPL3",
+ },
+ }, {
+ .base = S5PC100_GPL4_BASE,
+ .config = &gpio_cfg_noint,
+ .chip = {
+ .base = S5PC100_GPL4(0),
+ .ngpio = S5PC100_GPIO_L4_NR,
+ .label = "GPL4",
+ },
+ },
+};
+
+/* FIXME move from irq-gpio.c */
+extern struct irq_chip s5pc1xx_gpioint;
+extern void s5pc1xx_irq_gpioint_handler(unsigned int irq, struct irq_desc *desc);
+
+static __init void s5pc100_gpiolib_link(struct s3c_gpio_chip *chip)
+{
+#if 0
+ /* Interrupt */
+ if (chip->config == &gpio_cfg) {
+ int i, irq;
+
+ chip->chip.to_irq = s5pc1xx_gpiolib_to_irq;
+
+ for (i = 0; i < chip->chip.ngpio; i++) {
+ irq = S3C_IRQ_GPIO_BASE + chip->chip.base + i;
+ set_irq_chip(irq, &s5pc1xx_gpioint);
+ set_irq_data(irq, &chip->chip);
+ set_irq_handler(irq, handle_level_irq);
+ set_irq_flags(irq, IRQF_VALID);
+ }
+ } else if (chip->config == &gpio_cfg_eint)
+ chip->chip.to_irq = s5pc1xx_gpiolib_to_eint;
+#endif
+}
+
+static __init int s5pc1xx_gpiolib_init(void)
+{
+ struct s3c_gpio_chip *chip;
+ int nr_chips;
+
+ chip = s5pc100_gpio_chips;
+ nr_chips = ARRAY_SIZE(s5pc100_gpio_chips);
+
+ for (; nr_chips > 0; nr_chips--, chip++)
+ s5pc100_gpiolib_link(chip);
+
+ samsung_gpiolib_add_4bit_chips(s5pc100_gpio_chips,
+ ARRAY_SIZE(s5pc100_gpio_chips));
+#if 0
+ /* Interrupt */
+ set_irq_chained_handler(IRQ_GPIOINT, s5pc1xx_irq_gpioint_handler);
+#endif
+ return 0;
+}
+core_initcall(s5pc1xx_gpiolib_init);
diff --git a/arch/arm/mach-s5pc100/include/mach/regs-gpio.h b/arch/arm/mach-s5pc100/include/mach/regs-gpio.h
new file mode 100644
index 000000000000..43c7bc8bf784
--- /dev/null
+++ b/arch/arm/mach-s5pc100/include/mach/regs-gpio.h
@@ -0,0 +1,70 @@
+/* linux/arch/arm/plat-s5pc1xx/include/plat/regs-gpio.h
+ *
+ * Copyright 2009 Samsung Electronics Co.
+ * Byungho Min <bhmin@samsung.com>
+ *
+ * S5PC1XX - GPIO register definitions
+ */
+
+#ifndef __ASM_PLAT_S5PC1XX_REGS_GPIO_H
+#define __ASM_PLAT_S5PC1XX_REGS_GPIO_H __FILE__
+
+#include <mach/map.h>
+
+/* S5PC100 */
+#define S5PC100_GPIO_BASE S5PC1XX_VA_GPIO
+#define S5PC100_GPA0_BASE (S5PC100_GPIO_BASE + 0x0000)
+#define S5PC100_GPA1_BASE (S5PC100_GPIO_BASE + 0x0020)
+#define S5PC100_GPB_BASE (S5PC100_GPIO_BASE + 0x0040)
+#define S5PC100_GPC_BASE (S5PC100_GPIO_BASE + 0x0060)
+#define S5PC100_GPD_BASE (S5PC100_GPIO_BASE + 0x0080)
+#define S5PC100_GPE0_BASE (S5PC100_GPIO_BASE + 0x00A0)
+#define S5PC100_GPE1_BASE (S5PC100_GPIO_BASE + 0x00C0)
+#define S5PC100_GPF0_BASE (S5PC100_GPIO_BASE + 0x00E0)
+#define S5PC100_GPF1_BASE (S5PC100_GPIO_BASE + 0x0100)
+#define S5PC100_GPF2_BASE (S5PC100_GPIO_BASE + 0x0120)
+#define S5PC100_GPF3_BASE (S5PC100_GPIO_BASE + 0x0140)
+#define S5PC100_GPG0_BASE (S5PC100_GPIO_BASE + 0x0160)
+#define S5PC100_GPG1_BASE (S5PC100_GPIO_BASE + 0x0180)
+#define S5PC100_GPG2_BASE (S5PC100_GPIO_BASE + 0x01A0)
+#define S5PC100_GPG3_BASE (S5PC100_GPIO_BASE + 0x01C0)
+#define S5PC100_GPH0_BASE (S5PC100_GPIO_BASE + 0x0C00)
+#define S5PC100_GPH1_BASE (S5PC100_GPIO_BASE + 0x0C20)
+#define S5PC100_GPH2_BASE (S5PC100_GPIO_BASE + 0x0C40)
+#define S5PC100_GPH3_BASE (S5PC100_GPIO_BASE + 0x0C60)
+#define S5PC100_GPI_BASE (S5PC100_GPIO_BASE + 0x01E0)
+#define S5PC100_GPJ0_BASE (S5PC100_GPIO_BASE + 0x0200)
+#define S5PC100_GPJ1_BASE (S5PC100_GPIO_BASE + 0x0220)
+#define S5PC100_GPJ2_BASE (S5PC100_GPIO_BASE + 0x0240)
+#define S5PC100_GPJ3_BASE (S5PC100_GPIO_BASE + 0x0260)
+#define S5PC100_GPJ4_BASE (S5PC100_GPIO_BASE + 0x0280)
+#define S5PC100_GPK0_BASE (S5PC100_GPIO_BASE + 0x02A0)
+#define S5PC100_GPK1_BASE (S5PC100_GPIO_BASE + 0x02C0)
+#define S5PC100_GPK2_BASE (S5PC100_GPIO_BASE + 0x02E0)
+#define S5PC100_GPK3_BASE (S5PC100_GPIO_BASE + 0x0300)
+#define S5PC100_GPL0_BASE (S5PC100_GPIO_BASE + 0x0320)
+#define S5PC100_GPL1_BASE (S5PC100_GPIO_BASE + 0x0340)
+#define S5PC100_GPL2_BASE (S5PC100_GPIO_BASE + 0x0360)
+#define S5PC100_GPL3_BASE (S5PC100_GPIO_BASE + 0x0380)
+#define S5PC100_GPL4_BASE (S5PC100_GPIO_BASE + 0x03A0)
+#define S5PC100_EINT_BASE (S5PC100_GPIO_BASE + 0x0E00)
+
+#define S5PC100_UHOST (S5PC100_GPIO_BASE + 0x0B68)
+#define S5PC100_PDNEN (S5PC100_GPIO_BASE + 0x0F80)
+
+/* PDNEN */
+#define S5PC100_PDNEN_CFG_PDNEN (1 << 1)
+#define S5PC100_PDNEN_CFG_AUTO (0 << 1)
+#define S5PC100_PDNEN_POWERDOWN (1 << 0)
+#define S5PC100_PDNEN_NORMAL (0 << 0)
+
+/* Common part */
+/* External interrupt base is same at both s5pc100 and s5pc110 */
+#define S5PC1XX_EINT_BASE (S5PC100_EINT_BASE)
+
+#define S5PC100_GPx_INPUT(__gpio) (0x0 << ((__gpio) * 4))
+#define S5PC100_GPx_OUTPUT(__gpio) (0x1 << ((__gpio) * 4))
+#define S5PC100_GPx_CONMASK(__gpio) (0xf << ((__gpio) * 4))
+
+#endif /* __ASM_PLAT_S5PC1XX_REGS_GPIO_H */
+
diff --git a/arch/arm/mach-s5pc100/mach-smdkc100.c b/arch/arm/mach-s5pc100/mach-smdkc100.c
index ae3c52cd0ebb..bfe67db34f04 100644
--- a/arch/arm/mach-s5pc100/mach-smdkc100.c
+++ b/arch/arm/mach-s5pc100/mach-smdkc100.c
@@ -35,7 +35,6 @@
#include <plat/regs-serial.h>
#include <plat/gpio-cfg.h>
-#include <plat/regs-gpio.h>
#include <plat/clock.h>
#include <plat/devs.h>