1/* 2 * linux/arch/arm/mach-nuc93x/cpu.c 3 * 4 * Copyright (c) 2009 Nuvoton corporation. 5 * 6 * Wan ZongShun <mcuos.com@gmail.com> 7 * 8 * NUC93x series cpu common support 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation;version 2 of the License. 13 * 14 */ 15 16#include <linux/kernel.h> 17#include <linux/types.h> 18#include <linux/interrupt.h> 19#include <linux/list.h> 20#include <linux/timer.h> 21#include <linux/init.h> 22#include <linux/platform_device.h> 23#include <linux/io.h> 24#include <linux/serial_8250.h> 25#include <linux/delay.h> 26 27#include <asm/mach/arch.h> 28#include <asm/mach/map.h> 29#include <asm/mach/irq.h> 30#include <asm/irq.h> 31 32#include <mach/hardware.h> 33#include <mach/regs-serial.h> 34#include <mach/regs-clock.h> 35#include <mach/regs-ebi.h> 36 37#include "cpu.h" 38#include "clock.h" 39 40/* Initial IO mappings */ 41 42static struct map_desc nuc93x_iodesc[] __initdata = { 43 IODESC_ENT(IRQ), 44 IODESC_ENT(GCR), 45 IODESC_ENT(UART), 46 IODESC_ENT(TIMER), 47 IODESC_ENT(EBI), 48}; 49 50/* Initial nuc932 clock declarations. */ 51static DEFINE_CLK(audio, 2); 52static DEFINE_CLK(sd, 3); 53static DEFINE_CLK(jpg, 4); 54static DEFINE_CLK(video, 5); 55static DEFINE_CLK(vpost, 6); 56static DEFINE_CLK(2d, 7); 57static DEFINE_CLK(gpu, 8); 58static DEFINE_CLK(gdma, 9); 59static DEFINE_CLK(adc, 10); 60static DEFINE_CLK(uart, 11); 61static DEFINE_CLK(spi, 12); 62static DEFINE_CLK(pwm, 13); 63static DEFINE_CLK(timer, 14); 64static DEFINE_CLK(wdt, 15); 65static DEFINE_CLK(ac97, 16); 66static DEFINE_CLK(i2s, 16); 67static DEFINE_CLK(usbck, 17); 68static DEFINE_CLK(usb48, 18); 69static DEFINE_CLK(usbh, 19); 70static DEFINE_CLK(i2c, 20); 71static DEFINE_CLK(ext, 0); 72 73static struct clk_lookup nuc932_clkregs[] = { 74 DEF_CLKLOOK(&clk_audio, "nuc932-audio", NULL), 75 DEF_CLKLOOK(&clk_sd, "nuc932-sd", NULL), 76 DEF_CLKLOOK(&clk_jpg, "nuc932-jpg", "NULL"), 77 DEF_CLKLOOK(&clk_video, "nuc932-video", "NULL"), 78 DEF_CLKLOOK(&clk_vpost, "nuc932-vpost", NULL), 79 DEF_CLKLOOK(&clk_2d, "nuc932-2d", NULL), 80 DEF_CLKLOOK(&clk_gpu, "nuc932-gpu", NULL), 81 DEF_CLKLOOK(&clk_gdma, "nuc932-gdma", "NULL"), 82 DEF_CLKLOOK(&clk_adc, "nuc932-adc", NULL), 83 DEF_CLKLOOK(&clk_uart, NULL, "uart"), 84 DEF_CLKLOOK(&clk_spi, "nuc932-spi", NULL), 85 DEF_CLKLOOK(&clk_pwm, "nuc932-pwm", NULL), 86 DEF_CLKLOOK(&clk_timer, NULL, "timer"), 87 DEF_CLKLOOK(&clk_wdt, "nuc932-wdt", NULL), 88 DEF_CLKLOOK(&clk_ac97, "nuc932-ac97", NULL), 89 DEF_CLKLOOK(&clk_i2s, "nuc932-i2s", NULL), 90 DEF_CLKLOOK(&clk_usbck, "nuc932-usbck", NULL), 91 DEF_CLKLOOK(&clk_usb48, "nuc932-usb48", NULL), 92 DEF_CLKLOOK(&clk_usbh, "nuc932-usbh", NULL), 93 DEF_CLKLOOK(&clk_i2c, "nuc932-i2c", NULL), 94 DEF_CLKLOOK(&clk_ext, NULL, "ext"), 95}; 96 97/* Initial serial platform data */ 98 99struct plat_serial8250_port nuc93x_uart_data[] = { 100 NUC93X_8250PORT(UART0), 101 {}, 102}; 103 104struct platform_device nuc93x_serial_device = { 105 .name = "serial8250", 106 .id = PLAT8250_DEV_PLATFORM, 107 .dev = { 108 .platform_data = nuc93x_uart_data, 109 }, 110}; 111 112/*Init NUC93x evb io*/ 113 114void __init nuc93x_map_io(struct map_desc *mach_desc, int mach_size) 115{ 116 unsigned long idcode = 0x0; 117 118 iotable_init(mach_desc, mach_size); 119 iotable_init(nuc93x_iodesc, ARRAY_SIZE(nuc93x_iodesc)); 120 121 idcode = __raw_readl(NUC93XPDID); 122 if (idcode == NUC932_CPUID) 123 printk(KERN_INFO "CPU type 0x%08lx is NUC910\n", idcode); 124 else 125 printk(KERN_ERR "CPU type detect error!\n"); 126 127} 128 129/*Init NUC93x clock*/ 130 131void __init nuc93x_init_clocks(void) 132{ 133 clks_register(nuc932_clkregs, ARRAY_SIZE(nuc932_clkregs)); 134} 135