diff options
| -rw-r--r-- | arch/arm/include/asm/arch-mx31/mx31-regs.h | 14 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-mx31/mx31.h | 25 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-mx51/imx-regs.h | 6 | ||||
| -rw-r--r-- | board/davedenx/qong/qong.c | 29 | ||||
| -rw-r--r-- | drivers/gpio/Makefile | 2 | ||||
| -rw-r--r-- | drivers/gpio/mxc_gpio.c (renamed from drivers/gpio/mx31_gpio.c) | 47 | ||||
| -rw-r--r-- | drivers/spi/mxc_spi.c | 15 | ||||
| -rw-r--r-- | include/configs/imx31_phycore.h | 2 | ||||
| -rw-r--r-- | include/configs/qong.h | 2 | ||||
| -rw-r--r-- | include/mxc_gpio.h | 52 |
10 files changed, 127 insertions, 67 deletions
diff --git a/arch/arm/include/asm/arch-mx31/mx31-regs.h b/arch/arm/include/asm/arch-mx31/mx31-regs.h index d72585c8a0..f05e743d76 100644 --- a/arch/arm/include/asm/arch-mx31/mx31-regs.h +++ b/arch/arm/include/asm/arch-mx31/mx31-regs.h @@ -57,6 +57,14 @@ struct clock_control_regs { u32 pdr2; }; +/* GPIO Registers */ +struct gpio_regs { + u32 gpio_dr; + u32 gpio_dir; + u32 gpio_psr; +}; + + /* Bit definitions for RCSR register in CCM */ #define CCM_RCSR_NF16B (1 << 31) #define CCM_RCSR_NFMS (1 << 30) @@ -153,9 +161,9 @@ struct clock_control_regs { /* * GPIO */ -#define GPIO1_BASE 0x53FCC000 -#define GPIO2_BASE 0x53FD0000 -#define GPIO3_BASE 0x53FA4000 +#define GPIO1_BASE_ADDR 0x53FCC000 +#define GPIO2_BASE_ADDR 0x53FD0000 +#define GPIO3_BASE_ADDR 0x53FA4000 #define GPIO_DR 0x00000000 /* data register */ #define GPIO_GDIR 0x00000004 /* direction register */ #define GPIO_PSR 0x00000008 /* pad status register */ diff --git a/arch/arm/include/asm/arch-mx31/mx31.h b/arch/arm/include/asm/arch-mx31/mx31.h index f702d260f1..5a5aa114a7 100644 --- a/arch/arm/include/asm/arch-mx31/mx31.h +++ b/arch/arm/include/asm/arch-mx31/mx31.h @@ -28,31 +28,6 @@ extern u32 mx31_get_ipg_clk(void); #define imx_get_uartclk mx31_get_ipg_clk extern void mx31_gpio_mux(unsigned long mode); -enum mx31_gpio_direction { - MX31_GPIO_DIRECTION_IN, - MX31_GPIO_DIRECTION_OUT, -}; - -#ifdef CONFIG_MX31_GPIO -extern int mx31_gpio_direction(unsigned int gpio, - enum mx31_gpio_direction direction); -extern void mx31_gpio_set(unsigned int gpio, unsigned int value); -extern int mx31_gpio_get(unsigned int gpio); -#else -static inline int mx31_gpio_direction(unsigned int gpio, - enum mx31_gpio_direction direction) -{ - return 1; -} -static inline int mx31_gpio_get(unsigned int gpio) -{ - return 1; -} -static inline void mx31_gpio_set(unsigned int gpio, unsigned int value) -{ -} -#endif - void mx31_uart1_hw_init(void); void mx31_spi2_hw_init(void); diff --git a/arch/arm/include/asm/arch-mx51/imx-regs.h b/arch/arm/include/asm/arch-mx51/imx-regs.h index 3887d3cec4..0e3bc2a4fb 100644 --- a/arch/arm/include/asm/arch-mx51/imx-regs.h +++ b/arch/arm/include/asm/arch-mx51/imx-regs.h @@ -256,6 +256,12 @@ struct weim { u32 cswcr2; }; +/* GPIO Registers */ +struct gpio_regs { + u32 gpio_dr; + u32 gpio_dir; + u32 gpio_psr; +}; #endif /* __ASSEMBLER__*/ #endif /* __ASM_ARCH_MXC_MX51_H__ */ diff --git a/board/davedenx/qong/qong.c b/board/davedenx/qong/qong.c index e509383e8f..9abc29c5f7 100644 --- a/board/davedenx/qong/qong.c +++ b/board/davedenx/qong/qong.c @@ -27,6 +27,7 @@ #include <asm/arch/mx31-regs.h> #include <nand.h> #include <fsl_pmic.h> +#include <mxc_gpio.h> #include "qong_fpga.h" DECLARE_GLOBAL_DATA_PTR; @@ -41,9 +42,9 @@ int dram_init (void) static void qong_fpga_reset(void) { - mx31_gpio_set(QONG_FPGA_RST_PIN, 0); + mxc_gpio_set(QONG_FPGA_RST_PIN, 0); udelay(30); - mx31_gpio_set(QONG_FPGA_RST_PIN, 1); + mxc_gpio_set(QONG_FPGA_RST_PIN, 1); udelay(300); } @@ -66,11 +67,11 @@ int board_early_init_f (void) /* FPGA reset Pin */ /* rstn = 0 */ - mx31_gpio_set(QONG_FPGA_RST_PIN, 0); - mx31_gpio_direction(QONG_FPGA_RST_PIN, MX31_GPIO_DIRECTION_OUT); + mxc_gpio_set(QONG_FPGA_RST_PIN, 0); + mxc_gpio_direction(QONG_FPGA_RST_PIN, MXC_GPIO_DIRECTION_OUT); /* set interrupt pin as input */ - mx31_gpio_direction(QONG_FPGA_IRQ_PIN, MX31_GPIO_DIRECTION_IN); + mxc_gpio_direction(QONG_FPGA_IRQ_PIN, MXC_GPIO_DIRECTION_IN); #endif @@ -206,27 +207,27 @@ static void board_nand_setup(void) qong_fpga_reset(); /* Enable NAND flash */ - mx31_gpio_set(15, 1); - mx31_gpio_set(14, 1); - mx31_gpio_direction(15, MX31_GPIO_DIRECTION_OUT); - mx31_gpio_direction(16, MX31_GPIO_DIRECTION_IN); - mx31_gpio_direction(14, MX31_GPIO_DIRECTION_IN); - mx31_gpio_set(15, 0); + mxc_gpio_set(15, 1); + mxc_gpio_set(14, 1); + mxc_gpio_direction(15, MXC_GPIO_DIRECTION_OUT); + mxc_gpio_direction(16, MXC_GPIO_DIRECTION_IN); + mxc_gpio_direction(14, MXC_GPIO_DIRECTION_IN); + mxc_gpio_set(15, 0); } int qong_nand_rdy(void *chip) { udelay(1); - return mx31_gpio_get(16); + return mxc_gpio_get(16); } void qong_nand_select_chip(struct mtd_info *mtd, int chip) { if (chip >= 0) - mx31_gpio_set(15, 0); + mxc_gpio_set(15, 0); else - mx31_gpio_set(15, 1); + mxc_gpio_set(15, 1); } diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 07d395d898..a0f455223b 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -27,7 +27,7 @@ LIB := $(obj)libgpio.a COBJS-$(CONFIG_AT91_GPIO) += at91_gpio.o COBJS-$(CONFIG_KIRKWOOD_GPIO) += kw_gpio.o -COBJS-$(CONFIG_MX31_GPIO) += mx31_gpio.o +COBJS-$(CONFIG_MXC_GPIO) += mxc_gpio.o COBJS-$(CONFIG_PCA953X) += pca953x.o COBJS-$(CONFIG_S5P) += s5p_gpio.o diff --git a/drivers/gpio/mx31_gpio.c b/drivers/gpio/mxc_gpio.c index b07f038156..663141f1b4 100644 --- a/drivers/gpio/mx31_gpio.c +++ b/drivers/gpio/mxc_gpio.c @@ -21,19 +21,29 @@ * MA 02111-1307 USA */ #include <common.h> -#include <asm/arch/mx31.h> +#ifdef CONFIG_MX31 #include <asm/arch/mx31-regs.h> +#endif +#ifdef CONFIG_MX51 +#include <asm/arch/imx-regs.h> +#endif +#include <asm/io.h> +#include <mxc_gpio.h> /* GPIO port description */ static unsigned long gpio_ports[] = { - [0] = GPIO1_BASE, - [1] = GPIO2_BASE, - [2] = GPIO3_BASE, + [0] = GPIO1_BASE_ADDR, + [1] = GPIO2_BASE_ADDR, + [2] = GPIO3_BASE_ADDR, +#ifdef CONFIG_MX51 + [3] = GPIO4_BASE_ADDR, +#endif }; -int mx31_gpio_direction(unsigned int gpio, enum mx31_gpio_direction direction) +int mxc_gpio_direction(unsigned int gpio, enum mxc_gpio_direction direction) { unsigned int port = gpio >> 5; + struct gpio_regs *regs; u32 l; if (port >= ARRAY_SIZE(gpio_ports)) @@ -41,22 +51,26 @@ int mx31_gpio_direction(unsigned int gpio, enum mx31_gpio_direction direction) gpio &= 0x1f; - l = __REG(gpio_ports[port] + GPIO_GDIR); + regs = (struct gpio_regs *)gpio_ports[port]; + + l = readl(®s->gpio_dir); + switch (direction) { - case MX31_GPIO_DIRECTION_OUT: + case MXC_GPIO_DIRECTION_OUT: l |= 1 << gpio; break; - case MX31_GPIO_DIRECTION_IN: + case MXC_GPIO_DIRECTION_IN: l &= ~(1 << gpio); } - __REG(gpio_ports[port] + GPIO_GDIR) = l; + writel(l, ®s->gpio_dir); return 0; } -void mx31_gpio_set(unsigned int gpio, unsigned int value) +void mxc_gpio_set(unsigned int gpio, unsigned int value) { unsigned int port = gpio >> 5; + struct gpio_regs *regs; u32 l; if (port >= ARRAY_SIZE(gpio_ports)) @@ -64,17 +78,20 @@ void mx31_gpio_set(unsigned int gpio, unsigned int value) gpio &= 0x1f; - l = __REG(gpio_ports[port] + GPIO_DR); + regs = (struct gpio_regs *)gpio_ports[port]; + + l = readl(®s->gpio_dr); if (value) l |= 1 << gpio; else l &= ~(1 << gpio); - __REG(gpio_ports[port] + GPIO_DR) = l; + writel(l, ®s->gpio_dr); } -int mx31_gpio_get(unsigned int gpio) +int mxc_gpio_get(unsigned int gpio) { unsigned int port = gpio >> 5; + struct gpio_regs *regs; u32 l; if (port >= ARRAY_SIZE(gpio_ports)) @@ -82,7 +99,9 @@ int mx31_gpio_get(unsigned int gpio) gpio &= 0x1f; - l = (__REG(gpio_ports[port] + GPIO_DR) >> gpio) & 0x01; + regs = (struct gpio_regs *)gpio_ports[port]; + + l = (readl(®s->gpio_dr) >> gpio) & 0x01; return l; } diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c index e15a63caca..802cd2efb0 100644 --- a/drivers/spi/mxc_spi.c +++ b/drivers/spi/mxc_spi.c @@ -23,6 +23,7 @@ #include <spi.h> #include <asm/errno.h> #include <asm/io.h> +#include <mxc_gpio.h> #ifdef CONFIG_MX27 /* i.MX27 has a completely wrong register layout and register definitions in the @@ -68,9 +69,6 @@ static unsigned long spi_bases[] = { 0x53f84000, }; -#define OUT MX31_GPIO_DIRECTION_OUT -#define mxc_gpio_direction mx31_gpio_direction -#define mxc_gpio_set mx31_gpio_set #elif defined(CONFIG_MX51) #include <asm/arch/imx-regs.h> #include <asm/arch/clock.h> @@ -111,13 +109,12 @@ static unsigned long spi_bases[] = { CSPI2_BASE_ADDR, CSPI3_BASE_ADDR, }; -#define mxc_gpio_direction(gpio, dir) (0) -#define mxc_gpio_set(gpio, value) {} -#define OUT 1 #else #error "Unsupported architecture" #endif +#define OUT MXC_GPIO_DIRECTION_OUT + struct mxc_spi_slave { struct spi_slave slave; unsigned long base; @@ -126,6 +123,7 @@ struct mxc_spi_slave { u32 cfg_reg; #endif int gpio; + int ss_pol; }; static inline struct mxc_spi_slave *to_mxc_spi_slave(struct spi_slave *slave) @@ -147,7 +145,7 @@ void spi_cs_activate(struct spi_slave *slave) { struct mxc_spi_slave *mxcs = to_mxc_spi_slave(slave); if (mxcs->gpio > 0) - mxc_gpio_set(mxcs->gpio, mxcs->ctrl_reg & MXC_CSPICTRL_SSPOL); + mxc_gpio_set(mxcs->gpio, mxcs->ss_pol); } void spi_cs_deactivate(struct spi_slave *slave) @@ -155,7 +153,7 @@ void spi_cs_deactivate(struct spi_slave *slave) struct mxc_spi_slave *mxcs = to_mxc_spi_slave(slave); if (mxcs->gpio > 0) mxc_gpio_set(mxcs->gpio, - !(mxcs->ctrl_reg & MXC_CSPICTRL_SSPOL)); + !(mxcs->ss_pol)); } #ifdef CONFIG_MX51 @@ -394,6 +392,7 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs, mxcs->slave.bus = bus; mxcs->slave.cs = cs; mxcs->base = spi_bases[bus]; + mxcs->ss_pol = (mode & SPI_CS_HIGH) ? 1 : 0; #ifdef CONFIG_MX51 /* Can be used for i.MX31 too ? */ diff --git a/include/configs/imx31_phycore.h b/include/configs/imx31_phycore.h index 1dbafa0521..62944a93f6 100644 --- a/include/configs/imx31_phycore.h +++ b/include/configs/imx31_phycore.h @@ -183,7 +183,7 @@ #ifdef CONFIG_IMX31_PHYCORE_EET #define BOARD_LATE_INIT -#define CONFIG_MX31_GPIO 1 +#define CONFIG_MXC_GPIO #define CONFIG_HARD_SPI 1 #define CONFIG_MXC_SPI 1 diff --git a/include/configs/qong.h b/include/configs/qong.h index 7a68b7b97e..7cd955826d 100644 --- a/include/configs/qong.h +++ b/include/configs/qong.h @@ -52,7 +52,7 @@ #define CONFIG_MXC_UART 1 #define CONFIG_SYS_MX31_UART1 1 -#define CONFIG_MX31_GPIO +#define CONFIG_MXC_GPIO #define CONFIG_MXC_SPI #define CONFIG_DEFAULT_SPI_BUS 1 diff --git a/include/mxc_gpio.h b/include/mxc_gpio.h new file mode 100644 index 0000000000..002ba61e00 --- /dev/null +++ b/include/mxc_gpio.h @@ -0,0 +1,52 @@ +/* + * + * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 + */ + +#ifndef __MXC_GPIO_H +#define __MXC_GPIO_H + +enum mxc_gpio_direction { + MXC_GPIO_DIRECTION_IN, + MXC_GPIO_DIRECTION_OUT, +}; + +#ifdef CONFIG_MXC_GPIO +extern int mxc_gpio_direction(unsigned int gpio, + enum mxc_gpio_direction direction); +extern void mxc_gpio_set(unsigned int gpio, unsigned int value); +extern int mxc_gpio_get(unsigned int gpio); +#else +static inline int mxc_gpio_direction(unsigned int gpio, + enum mxc_gpio_direction direction) +{ + return 1; +} +static inline int mxc_gpio_get(unsigned int gpio) +{ + return 1; +} +static inline void mxc_gpio_set(unsigned int gpio, unsigned int value) +{ +} +#endif + +#endif |
