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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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a62e90308f
The previous nuc932 support patches have been discarded by me and because it belongs to another SoCs series named nuc93x,at present, which included nuc931 and nuc932, I think it is better to create a new mach-nuc93x,So I made the patch,and request your advice.Thanks! Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
136 lines
3.5 KiB
C
136 lines
3.5 KiB
C
/*
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* linux/arch/arm/mach-nuc93x/cpu.c
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*
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* Copyright (c) 2009 Nuvoton corporation.
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*
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* Wan ZongShun <mcuos.com@gmail.com>
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*
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* NUC93x series cpu common support
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation;version 2 of the License.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/serial_8250.h>
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#include <linux/delay.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <asm/irq.h>
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#include <mach/hardware.h>
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#include <mach/regs-serial.h>
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#include <mach/regs-clock.h>
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#include <mach/regs-ebi.h>
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#include "cpu.h"
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#include "clock.h"
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/* Initial IO mappings */
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static struct map_desc nuc93x_iodesc[] __initdata = {
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IODESC_ENT(IRQ),
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IODESC_ENT(GCR),
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IODESC_ENT(UART),
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IODESC_ENT(TIMER),
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IODESC_ENT(EBI),
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};
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/* Initial nuc932 clock declarations. */
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static DEFINE_CLK(audio, 2);
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static DEFINE_CLK(sd, 3);
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static DEFINE_CLK(jpg, 4);
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static DEFINE_CLK(video, 5);
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static DEFINE_CLK(vpost, 6);
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static DEFINE_CLK(2d, 7);
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static DEFINE_CLK(gpu, 8);
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static DEFINE_CLK(gdma, 9);
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static DEFINE_CLK(adc, 10);
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static DEFINE_CLK(uart, 11);
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static DEFINE_CLK(spi, 12);
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static DEFINE_CLK(pwm, 13);
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static DEFINE_CLK(timer, 14);
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static DEFINE_CLK(wdt, 15);
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static DEFINE_CLK(ac97, 16);
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static DEFINE_CLK(i2s, 16);
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static DEFINE_CLK(usbck, 17);
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static DEFINE_CLK(usb48, 18);
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static DEFINE_CLK(usbh, 19);
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static DEFINE_CLK(i2c, 20);
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static DEFINE_CLK(ext, 0);
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static struct clk_lookup nuc932_clkregs[] = {
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DEF_CLKLOOK(&clk_audio, "nuc932-audio", NULL),
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DEF_CLKLOOK(&clk_sd, "nuc932-sd", NULL),
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DEF_CLKLOOK(&clk_jpg, "nuc932-jpg", "NULL"),
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DEF_CLKLOOK(&clk_video, "nuc932-video", "NULL"),
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DEF_CLKLOOK(&clk_vpost, "nuc932-vpost", NULL),
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DEF_CLKLOOK(&clk_2d, "nuc932-2d", NULL),
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DEF_CLKLOOK(&clk_gpu, "nuc932-gpu", NULL),
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DEF_CLKLOOK(&clk_gdma, "nuc932-gdma", "NULL"),
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DEF_CLKLOOK(&clk_adc, "nuc932-adc", NULL),
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DEF_CLKLOOK(&clk_uart, NULL, "uart"),
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DEF_CLKLOOK(&clk_spi, "nuc932-spi", NULL),
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DEF_CLKLOOK(&clk_pwm, "nuc932-pwm", NULL),
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DEF_CLKLOOK(&clk_timer, NULL, "timer"),
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DEF_CLKLOOK(&clk_wdt, "nuc932-wdt", NULL),
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DEF_CLKLOOK(&clk_ac97, "nuc932-ac97", NULL),
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DEF_CLKLOOK(&clk_i2s, "nuc932-i2s", NULL),
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DEF_CLKLOOK(&clk_usbck, "nuc932-usbck", NULL),
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DEF_CLKLOOK(&clk_usb48, "nuc932-usb48", NULL),
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DEF_CLKLOOK(&clk_usbh, "nuc932-usbh", NULL),
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DEF_CLKLOOK(&clk_i2c, "nuc932-i2c", NULL),
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DEF_CLKLOOK(&clk_ext, NULL, "ext"),
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};
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/* Initial serial platform data */
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struct plat_serial8250_port nuc93x_uart_data[] = {
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NUC93X_8250PORT(UART0),
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{},
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};
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struct platform_device nuc93x_serial_device = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev = {
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.platform_data = nuc93x_uart_data,
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},
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};
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/*Init NUC93x evb io*/
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void __init nuc93x_map_io(struct map_desc *mach_desc, int mach_size)
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{
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unsigned long idcode = 0x0;
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iotable_init(mach_desc, mach_size);
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iotable_init(nuc93x_iodesc, ARRAY_SIZE(nuc93x_iodesc));
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idcode = __raw_readl(NUC93XPDID);
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if (idcode == NUC932_CPUID)
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printk(KERN_INFO "CPU type 0x%08lx is NUC910\n", idcode);
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else
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printk(KERN_ERR "CPU type detect error!\n");
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}
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/*Init NUC93x clock*/
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void __init nuc93x_init_clocks(void)
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{
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clks_register(nuc932_clkregs, ARRAY_SIZE(nuc932_clkregs));
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}
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