diff options
Diffstat (limited to 'arch/arm/mach-imx/generic.c')
| -rw-r--r-- | arch/arm/mach-imx/generic.c | 295 |
1 files changed, 0 insertions, 295 deletions
diff --git a/arch/arm/mach-imx/generic.c b/arch/arm/mach-imx/generic.c deleted file mode 100644 index cb14b0682ce..00000000000 --- a/arch/arm/mach-imx/generic.c +++ /dev/null @@ -1,295 +0,0 @@ -/* - * arch/arm/mach-imx/generic.c - * - * author: Sascha Hauer - * Created: april 20th, 2004 - * Copyright: Synertronixx GmbH - * - * Common code for i.MX machines - * - * 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 - * - */ -#include <linux/device.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <asm/arch/imxfb.h> -#include <asm/hardware.h> -#include <asm/arch/imx-regs.h> - -#include <asm/mach/map.h> - -void imx_gpio_mode(int gpio_mode) -{ - unsigned int pin = gpio_mode & GPIO_PIN_MASK; - unsigned int port = (gpio_mode & GPIO_PORT_MASK) >> GPIO_PORT_SHIFT; - unsigned int ocr = (gpio_mode & GPIO_OCR_MASK) >> GPIO_OCR_SHIFT; - unsigned int tmp; - - /* Pullup enable */ - if(gpio_mode & GPIO_PUEN) - PUEN(port) |= (1<<pin); - else - PUEN(port) &= ~(1<<pin); - - /* Data direction */ - if(gpio_mode & GPIO_OUT) - DDIR(port) |= 1<<pin; - else - DDIR(port) &= ~(1<<pin); - - /* Primary / alternate function */ - if(gpio_mode & GPIO_AF) - GPR(port) |= (1<<pin); - else - GPR(port) &= ~(1<<pin); - - /* use as gpio? */ - if(gpio_mode & GPIO_GIUS) - GIUS(port) |= (1<<pin); - else - GIUS(port) &= ~(1<<pin); - - /* Output / input configuration */ - /* FIXME: I'm not very sure about OCR and ICONF, someone - * should have a look over it - */ - if(pin<16) { - tmp = OCR1(port); - tmp &= ~( 3<<(pin*2)); - tmp |= (ocr << (pin*2)); - OCR1(port) = tmp; - - ICONFA1(port) &= ~( 3<<(pin*2)); - ICONFA1(port) |= ((gpio_mode >> GPIO_AOUT_SHIFT) & 3) << (pin * 2); - ICONFB1(port) &= ~( 3<<(pin*2)); - ICONFB1(port) |= ((gpio_mode >> GPIO_BOUT_SHIFT) & 3) << (pin * 2); - } else { - tmp = OCR2(port); - tmp &= ~( 3<<((pin-16)*2)); - tmp |= (ocr << ((pin-16)*2)); - OCR2(port) = tmp; - - ICONFA2(port) &= ~( 3<<((pin-16)*2)); - ICONFA2(port) |= ((gpio_mode >> GPIO_AOUT_SHIFT) & 3) << ((pin-16) * 2); - ICONFB2(port) &= ~( 3<<((pin-16)*2)); - ICONFB2(port) |= ((gpio_mode >> GPIO_BOUT_SHIFT) & 3) << ((pin-16) * 2); - } -} - -EXPORT_SYMBOL(imx_gpio_mode); - -/* - * get the system pll clock in Hz - * - * mfi + mfn / (mfd +1) - * f = 2 * f_ref * -------------------- - * pd + 1 - */ -static unsigned int imx_decode_pll(unsigned int pll) -{ - u32 mfi = (pll >> 10) & 0xf; - u32 mfn = pll & 0x3ff; - u32 mfd = (pll >> 16) & 0x3ff; - u32 pd = (pll >> 26) & 0xf; - u32 f_ref = (CSCR & CSCR_SYSTEM_SEL) ? 16000000 : (CLK32 * 512); - - mfi = mfi <= 5 ? 5 : mfi; - - return (2 * (f_ref>>10) * ( (mfi<<10) + (mfn<<10) / (mfd+1) )) / (pd+1); -} - -unsigned int imx_get_system_clk(void) -{ - return imx_decode_pll(SPCTL0); -} -EXPORT_SYMBOL(imx_get_system_clk); - -unsigned int imx_get_mcu_clk(void) -{ - return imx_decode_pll(MPCTL0); -} -EXPORT_SYMBOL(imx_get_mcu_clk); - -/* - * get peripheral clock 1 ( UART[12], Timer[12], PWM ) - */ -unsigned int imx_get_perclk1(void) -{ - return imx_get_system_clk() / (((PCDR) & 0xf)+1); -} -EXPORT_SYMBOL(imx_get_perclk1); - -/* - * get peripheral clock 2 ( LCD, SD, SPI[12] ) - */ -unsigned int imx_get_perclk2(void) -{ - return imx_get_system_clk() / (((PCDR>>4) & 0xf)+1); -} -EXPORT_SYMBOL(imx_get_perclk2); - -/* - * get peripheral clock 3 ( SSI ) - */ -unsigned int imx_get_perclk3(void) -{ - return imx_get_system_clk() / (((PCDR>>16) & 0x7f)+1); -} -EXPORT_SYMBOL(imx_get_perclk3); - -/* - * get hclk ( SDRAM, CSI, Memory Stick, I2C, DMA ) - */ -unsigned int imx_get_hclk(void) -{ - return imx_get_system_clk() / (((CSCR>>10) & 0xf)+1); -} -EXPORT_SYMBOL(imx_get_hclk); - -static struct resource imx_mmc_resources[] = { - [0] = { - .start = 0x00214000, - .end = 0x002140FF, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = (SDHC_INT), - .end = (SDHC_INT), - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device imx_mmc_device = { - .name = "imx-mmc", - .id = 0, - .num_resources = ARRAY_SIZE(imx_mmc_resources), - .resource = imx_mmc_resources, -}; - -static struct resource imx_uart1_resources[] = { - [0] = { - .start = 0x00206000, - .end = 0x002060FF, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = (UART1_MINT_RX), - .end = (UART1_MINT_RX), - .flags = IORESOURCE_IRQ, - }, - [2] = { - .start = (UART1_MINT_TX), - .end = (UART1_MINT_TX), - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device imx_uart1_device = { - .name = "imx-uart", - .id = 0, - .num_resources = ARRAY_SIZE(imx_uart1_resources), - .resource = imx_uart1_resources, -}; - -static struct resource imx_uart2_resources[] = { - [0] = { - .start = 0x00207000, - .end = 0x002070FF, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = (UART2_MINT_RX), - .end = (UART2_MINT_RX), - .flags = IORESOURCE_IRQ, - }, - [2] = { - .start = (UART2_MINT_TX), - .end = (UART2_MINT_TX), - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device imx_uart2_device = { - .name = "imx-uart", - .id = 1, - .num_resources = ARRAY_SIZE(imx_uart2_resources), - .resource = imx_uart2_resources, -}; - -static struct imxfb_mach_info imx_fb_info; - -void __init set_imx_fb_info(struct imxfb_mach_info *hard_imx_fb_info) -{ - memcpy(&imx_fb_info,hard_imx_fb_info,sizeof(struct imxfb_mach_info)); -} -EXPORT_SYMBOL(set_imx_fb_info); - -static struct resource imxfb_resources[] = { - [0] = { - .start = 0x00205000, - .end = 0x002050FF, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = LCDC_INT, - .end = LCDC_INT, - .flags = IORESOURCE_IRQ, - }, -}; - -static u64 fb_dma_mask = ~(u64)0; - -static struct platform_device imxfb_device = { - .name = "imx-fb", - .id = 0, - .dev = { - .platform_data = &imx_fb_info, - .dma_mask = &fb_dma_mask, - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(imxfb_resources), - .resource = imxfb_resources, -}; - -static struct platform_device *devices[] __initdata = { - &imx_mmc_device, - &imxfb_device, - &imx_uart1_device, - &imx_uart2_device, -}; - -static struct map_desc imx_io_desc[] __initdata = { - { - .virtual = IMX_IO_BASE, - .pfn = __phys_to_pfn(IMX_IO_PHYS), - .length = IMX_IO_SIZE, - .type = MT_DEVICE - } -}; - -void __init -imx_map_io(void) -{ - iotable_init(imx_io_desc, ARRAY_SIZE(imx_io_desc)); -} - -static int __init imx_init(void) -{ - return platform_add_devices(devices, ARRAY_SIZE(devices)); -} - -subsys_initcall(imx_init); |