--- /dev/null
+/* linux/arch/arm/mach-s5p6440/include/mach/regs-gpio.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * S5P6440 - GPIO register definitions
+ *
+ * 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.
+ */
+
+#ifndef __ASM_ARCH_REGS_GPIO_H
+#define __ASM_ARCH_REGS_GPIO_H __FILE__
+
+#include <mach/map.h>
+
+/* Base addresses for each of the banks */
+#define S5P6440_GPA_BASE (S5P_VA_GPIO + 0x0000)
+#define S5P6440_GPB_BASE (S5P_VA_GPIO + 0x0020)
+#define S5P6440_GPC_BASE (S5P_VA_GPIO + 0x0040)
+#define S5P6440_GPF_BASE (S5P_VA_GPIO + 0x00A0)
+#define S5P6440_GPG_BASE (S5P_VA_GPIO + 0x00C0)
+#define S5P6440_GPH_BASE (S5P_VA_GPIO + 0x00E0)
+#define S5P6440_GPI_BASE (S5P_VA_GPIO + 0x0100)
+#define S5P6440_GPJ_BASE (S5P_VA_GPIO + 0x0120)
+#define S5P6440_GPN_BASE (S5P_VA_GPIO + 0x0830)
+#define S5P6440_GPP_BASE (S5P_VA_GPIO + 0x0160)
+#define S5P6440_GPR_BASE (S5P_VA_GPIO + 0x0290)
+#define S5P6440_EINT0CON0 (S5P_VA_GPIO + 0x900)
+#define S5P6440_EINT0FLTCON0 (S5P_VA_GPIO + 0x910)
+#define S5P6440_EINT0FLTCON1 (S5P_VA_GPIO + 0x914)
+#define S5P6440_EINT0MASK (S5P_VA_GPIO + 0x920)
+#define S5P6440_EINT0PEND (S5P_VA_GPIO + 0x924)
+
+/* for LCD */
+#define S5P6440_SPCON_LCD_SEL_RGB (1 << 0)
+#define S5P6440_SPCON_LCD_SEL_MASK (3 << 0)
+
+/* These set of macros are not really useful for the
+ * GPF/GPI/GPJ/GPN/GPP,
+ * useful for others set of GPIO's (4 bit)
+ */
+#define S5P6440_GPIO_CONMASK(__gpio) (0xf << ((__gpio) * 4))
+#define S5P6440_GPIO_INPUT(__gpio) (0x0 << ((__gpio) * 4))
+#define S5P6440_GPIO_OUTPUT(__gpio) (0x1 << ((__gpio) * 4))
+
+/* Use these macros for GPF/GPI/GPJ/GPN/GPP set of GPIO (2 bit)
+ * */
+#define S5P6440_GPIO2_CONMASK(__gpio) (0x3 << ((__gpio) * 2))
+#define S5P6440_GPIO2_INPUT(__gpio) (0x0 << ((__gpio) * 2))
+#define S5P6440_GPIO2_OUTPUT(__gpio) (0x1 << ((__gpio) * 2))
+
+#endif /* __ASM_ARCH_REGS_GPIO_H */
--- /dev/null
+/* arch/arm/mach-s5p6440/s5p6440-gpio.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * S5P6440 - 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 <mach/map.h>
+#include <mach/gpio.h>
+#include <mach/regs-gpio.h>
+#include <plat/gpio-core.h>
+#include <plat/gpio-cfg.h>
+#include <plat/gpio-cfg-helpers.h>
+
+/* 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
+*
+* [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 s5p6440_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;
+
+ 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;
+ }
+
+ con = __raw_readl(regcon);
+ con &= ~(0xf << con_4bit_shift(offset));
+ __raw_writel(con, regcon);
+
+ return 0;
+}
+
+static int s5p6440_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 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;
+ }
+
+ 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);
+
+ return 0;
+}
+
+int s5p6440_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 s5p6440_gpio_cfgs[] = {
+ {
+ .cfg_eint = 0,
+ }, {
+ .cfg_eint = 7,
+ }, {
+ .cfg_eint = 3,
+ .set_config = s5p6440_gpio_setcfg_4bit_rbank,
+ }, {
+ .cfg_eint = 0,
+ .set_config = s3c_gpio_setcfg_s3c24xx,
+ }, {
+ .cfg_eint = 2,
+ .set_config = s3c_gpio_setcfg_s3c24xx,
+ }, {
+ .cfg_eint = 3,
+ .set_config = s3c_gpio_setcfg_s3c24xx,
+ },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_4bit[] = {
+ {
+ .base = S5P6440_GPA_BASE,
+ .config = &s5p6440_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPA(0),
+ .ngpio = S5P6440_GPIO_A_NR,
+ .label = "GPA",
+ },
+ }, {
+ .base = S5P6440_GPB_BASE,
+ .config = &s5p6440_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPB(0),
+ .ngpio = S5P6440_GPIO_B_NR,
+ .label = "GPB",
+ },
+ }, {
+ .base = S5P6440_GPC_BASE,
+ .config = &s5p6440_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPC(0),
+ .ngpio = S5P6440_GPIO_C_NR,
+ .label = "GPC",
+ },
+ }, {
+ .base = S5P6440_GPG_BASE,
+ .config = &s5p6440_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPG(0),
+ .ngpio = S5P6440_GPIO_G_NR,
+ .label = "GPG",
+ },
+ },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_4bit2[] = {
+ {
+ .base = S5P6440_GPH_BASE + 0x4,
+ .config = &s5p6440_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPH(0),
+ .ngpio = S5P6440_GPIO_H_NR,
+ .label = "GPH",
+ },
+ },
+};
+
+static struct s3c_gpio_chip gpio_rbank_4bit2[] = {
+ {
+ .base = S5P6440_GPR_BASE + 0x4,
+ .config = &s5p6440_gpio_cfgs[2],
+ .chip = {
+ .base = S5P6440_GPR(0),
+ .ngpio = S5P6440_GPIO_R_NR,
+ .label = "GPR",
+ },
+ },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_2bit[] = {
+ {
+ .base = S5P6440_GPF_BASE,
+ .config = &s5p6440_gpio_cfgs[5],
+ .chip = {
+ .base = S5P6440_GPF(0),
+ .ngpio = S5P6440_GPIO_F_NR,
+ .label = "GPF",
+ },
+ }, {
+ .base = S5P6440_GPI_BASE,
+ .config = &s5p6440_gpio_cfgs[3],
+ .chip = {
+ .base = S5P6440_GPI(0),
+ .ngpio = S5P6440_GPIO_I_NR,
+ .label = "GPI",
+ },
+ }, {
+ .base = S5P6440_GPJ_BASE,
+ .config = &s5p6440_gpio_cfgs[3],
+ .chip = {
+ .base = S5P6440_GPJ(0),
+ .ngpio = S5P6440_GPIO_J_NR,
+ .label = "GPJ",
+ },
+ }, {
+ .base = S5P6440_GPN_BASE,
+ .config = &s5p6440_gpio_cfgs[4],
+ .chip = {
+ .base = S5P6440_GPN(0),
+ .ngpio = S5P6440_GPIO_N_NR,
+ .label = "GPN",
+ },
+ }, {
+ .base = S5P6440_GPP_BASE,
+ .config = &s5p6440_gpio_cfgs[5],
+ .chip = {
+ .base = S5P6440_GPP(0),
+ .ngpio = S5P6440_GPIO_P_NR,
+ .label = "GPP",
+ },
+ },
+};
+
+void __init s5p6440_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->set_pull)
+ chipcfg->set_pull = s3c_gpio_setpull_updown;
+ if (!chipcfg->get_pull)
+ chipcfg->get_pull = s3c_gpio_getpull_updown;
+ }
+}
+
+static void __init s5p6440_gpio_add_rbank_4bit2(struct s3c_gpio_chip *chip,
+ int nr_chips)
+{
+ for (; nr_chips > 0; nr_chips--, chip++) {
+ chip->chip.direction_input = s5p6440_gpiolib_rbank_4bit2_input;
+ chip->chip.direction_output =
+ s5p6440_gpiolib_rbank_4bit2_output;
+ s3c_gpiolib_add(chip);
+ }
+}
+
+static int __init s5p6440_gpiolib_init(void)
+{
+ struct s3c_gpio_chip *chips = s5p6440_gpio_2bit;
+ int nr_chips = ARRAY_SIZE(s5p6440_gpio_2bit);
+
+ s5p6440_gpiolib_set_cfg(s5p6440_gpio_cfgs,
+ ARRAY_SIZE(s5p6440_gpio_cfgs));
+
+ for (; nr_chips > 0; nr_chips--, chips++)
+ s3c_gpiolib_add(chips);
+
+ 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));
+
+ s5p6440_gpio_add_rbank_4bit2(gpio_rbank_4bit2,
+ ARRAY_SIZE(gpio_rbank_4bit2));
+
+ return 0;
+}
+arch_initcall(s5p6440_gpiolib_init);
projects / openwrt / staging / blogic.git / commitdiff