mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-03 17:14:14 +08:00
ca90666287
* 'gpio' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (43 commits) ARM: 7135/1: ep93xx: bring back missing <mach/gpio.h> ARM: 7104/1: plat-pxa: break out GPIO driver specifics ARM: 7103/1: plat-pxa: move PXA GPIO driver to GPIO subsystem ARM: 7042/3: mach-ep93xx: break out GPIO driver specifics ARM: 7101/1: arm/tegra: Replace <mach/gpio.h> with <mach/gpio-tegra.h> ARM: 7094/1: arm/tegra: Move EN_VDD_1V05_GPIO to board-harmony.h ARM: 7083/1: rewrite U300 GPIO to use gpiolib ARM: 7074/1: gpio: davinci: eliminate unused variable warnings ARM: 7063/1: Orion: gpio: add missing include of linux/types.h ARM: 7055/1: arm/tegra: mach/gpio.h: include linux/types.h to fix build ARM: 7054/1: arm/tegra: Delete custom gpio_to_irq, and irq_to_gpio ARM: 7053/1: gpio/tegra: Implement gpio_chip.to_irq ARM: 7052/1: gpio/tegra: Remove use of irq_to_gpio ARM: 7057/1: mach-pnx4008: rename GPIO header ARM: 7056/1: plat-nomadik: kill off <plat/gpio.h> ARM: 7050/1: mach-sa1100: delete irq_to_gpio() function ARM: 7049/1: mach-sa1100: move SA1100 GPIO driver to GPIO subsystem ARM: 7045/1: mach-lpc32xx: break out GPIO driver specifics ARM: 7044/1: mach-lpc32xx: move LPC32XX GPIO driver to GPIO subsystem ARM: 7043/1: mach-ixp2000: rename GPIO header ... Fix up trivial conflicts in arch/arm/mach-u300/Kconfig manually
217 lines
6.6 KiB
C
217 lines
6.6 KiB
C
/*
|
|
* linux/arch/arm/mach-mmp/pxa168.c
|
|
*
|
|
* Code specific to PXA168
|
|
*
|
|
* 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/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/list.h>
|
|
#include <linux/io.h>
|
|
#include <linux/clk.h>
|
|
|
|
#include <asm/mach/time.h>
|
|
#include <mach/addr-map.h>
|
|
#include <mach/cputype.h>
|
|
#include <mach/regs-apbc.h>
|
|
#include <mach/regs-apmu.h>
|
|
#include <mach/irqs.h>
|
|
#include <mach/gpio-pxa.h>
|
|
#include <mach/dma.h>
|
|
#include <mach/devices.h>
|
|
#include <mach/mfp.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <mach/pxa168.h>
|
|
|
|
#include "common.h"
|
|
#include "clock.h"
|
|
|
|
#define MFPR_VIRT_BASE (APB_VIRT_BASE + 0x1e000)
|
|
|
|
static struct mfp_addr_map pxa168_mfp_addr_map[] __initdata =
|
|
{
|
|
MFP_ADDR_X(GPIO0, GPIO36, 0x04c),
|
|
MFP_ADDR_X(GPIO37, GPIO55, 0x000),
|
|
MFP_ADDR_X(GPIO56, GPIO123, 0x0e0),
|
|
MFP_ADDR_X(GPIO124, GPIO127, 0x0f4),
|
|
|
|
MFP_ADDR_END,
|
|
};
|
|
|
|
#define APMASK(i) (GPIO_REGS_VIRT + BANK_OFF(i) + 0x09c)
|
|
|
|
static void __init pxa168_init_gpio(void)
|
|
{
|
|
int i;
|
|
|
|
/* enable GPIO clock */
|
|
__raw_writel(APBC_APBCLK | APBC_FNCLK, APBC_PXA168_GPIO);
|
|
|
|
/* unmask GPIO edge detection for all 4 banks - APMASKx */
|
|
for (i = 0; i < 4; i++)
|
|
__raw_writel(0xffffffff, APMASK(i));
|
|
|
|
pxa_init_gpio(IRQ_PXA168_GPIOX, 0, 127, NULL);
|
|
}
|
|
|
|
void __init pxa168_init_irq(void)
|
|
{
|
|
icu_init_irq();
|
|
pxa168_init_gpio();
|
|
}
|
|
|
|
/* APB peripheral clocks */
|
|
static APBC_CLK(uart1, PXA168_UART1, 1, 14745600);
|
|
static APBC_CLK(uart2, PXA168_UART2, 1, 14745600);
|
|
static APBC_CLK(uart3, PXA168_UART3, 1, 14745600);
|
|
static APBC_CLK(twsi0, PXA168_TWSI0, 1, 33000000);
|
|
static APBC_CLK(twsi1, PXA168_TWSI1, 1, 33000000);
|
|
static APBC_CLK(pwm1, PXA168_PWM1, 1, 13000000);
|
|
static APBC_CLK(pwm2, PXA168_PWM2, 1, 13000000);
|
|
static APBC_CLK(pwm3, PXA168_PWM3, 1, 13000000);
|
|
static APBC_CLK(pwm4, PXA168_PWM4, 1, 13000000);
|
|
static APBC_CLK(ssp1, PXA168_SSP1, 4, 0);
|
|
static APBC_CLK(ssp2, PXA168_SSP2, 4, 0);
|
|
static APBC_CLK(ssp3, PXA168_SSP3, 4, 0);
|
|
static APBC_CLK(ssp4, PXA168_SSP4, 4, 0);
|
|
static APBC_CLK(ssp5, PXA168_SSP5, 4, 0);
|
|
static APBC_CLK(keypad, PXA168_KPC, 0, 32000);
|
|
|
|
static APMU_CLK(nand, NAND, 0x19b, 156000000);
|
|
static APMU_CLK(lcd, LCD, 0x7f, 312000000);
|
|
static APMU_CLK(eth, ETH, 0x09, 0);
|
|
static APMU_CLK(usb, USB, 0x12, 0);
|
|
|
|
/* device and clock bindings */
|
|
static struct clk_lookup pxa168_clkregs[] = {
|
|
INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL),
|
|
INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
|
|
INIT_CLKREG(&clk_uart3, "pxa2xx-uart.2", NULL),
|
|
INIT_CLKREG(&clk_twsi0, "pxa2xx-i2c.0", NULL),
|
|
INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.1", NULL),
|
|
INIT_CLKREG(&clk_pwm1, "pxa168-pwm.0", NULL),
|
|
INIT_CLKREG(&clk_pwm2, "pxa168-pwm.1", NULL),
|
|
INIT_CLKREG(&clk_pwm3, "pxa168-pwm.2", NULL),
|
|
INIT_CLKREG(&clk_pwm4, "pxa168-pwm.3", NULL),
|
|
INIT_CLKREG(&clk_ssp1, "pxa168-ssp.0", NULL),
|
|
INIT_CLKREG(&clk_ssp2, "pxa168-ssp.1", NULL),
|
|
INIT_CLKREG(&clk_ssp3, "pxa168-ssp.2", NULL),
|
|
INIT_CLKREG(&clk_ssp4, "pxa168-ssp.3", NULL),
|
|
INIT_CLKREG(&clk_ssp5, "pxa168-ssp.4", NULL),
|
|
INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
|
|
INIT_CLKREG(&clk_lcd, "pxa168-fb", NULL),
|
|
INIT_CLKREG(&clk_keypad, "pxa27x-keypad", NULL),
|
|
INIT_CLKREG(&clk_eth, "pxa168-eth", "MFUCLK"),
|
|
INIT_CLKREG(&clk_usb, "pxa168-ehci", "PXA168-USBCLK"),
|
|
};
|
|
|
|
static int __init pxa168_init(void)
|
|
{
|
|
if (cpu_is_pxa168()) {
|
|
mfp_init_base(MFPR_VIRT_BASE);
|
|
mfp_init_addr(pxa168_mfp_addr_map);
|
|
pxa_init_dma(IRQ_PXA168_DMA_INT0, 32);
|
|
clkdev_add_table(ARRAY_AND_SIZE(pxa168_clkregs));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
postcore_initcall(pxa168_init);
|
|
|
|
/* system timer - clock enabled, 3.25MHz */
|
|
#define TIMER_CLK_RST (APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3))
|
|
|
|
static void __init pxa168_timer_init(void)
|
|
{
|
|
/* this is early, we have to initialize the CCU registers by
|
|
* ourselves instead of using clk_* API. Clock rate is defined
|
|
* by APBC_TIMERS_CLK_RST (3.25MHz) and enabled free-running
|
|
*/
|
|
__raw_writel(APBC_APBCLK | APBC_RST, APBC_PXA168_TIMERS);
|
|
|
|
/* 3.25MHz, bus/functional clock enabled, release reset */
|
|
__raw_writel(TIMER_CLK_RST, APBC_PXA168_TIMERS);
|
|
|
|
timer_init(IRQ_PXA168_TIMER1);
|
|
}
|
|
|
|
struct sys_timer pxa168_timer = {
|
|
.init = pxa168_timer_init,
|
|
};
|
|
|
|
void pxa168_clear_keypad_wakeup(void)
|
|
{
|
|
uint32_t val;
|
|
uint32_t mask = APMU_PXA168_KP_WAKE_CLR;
|
|
|
|
/* wake event clear is needed in order to clear keypad interrupt */
|
|
val = __raw_readl(APMU_WAKE_CLR);
|
|
__raw_writel(val | mask, APMU_WAKE_CLR);
|
|
}
|
|
|
|
/* on-chip devices */
|
|
PXA168_DEVICE(uart1, "pxa2xx-uart", 0, UART1, 0xd4017000, 0x30, 21, 22);
|
|
PXA168_DEVICE(uart2, "pxa2xx-uart", 1, UART2, 0xd4018000, 0x30, 23, 24);
|
|
PXA168_DEVICE(uart3, "pxa2xx-uart", 2, UART3, 0xd4026000, 0x30, 23, 24);
|
|
PXA168_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28);
|
|
PXA168_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28);
|
|
PXA168_DEVICE(pwm1, "pxa168-pwm", 0, NONE, 0xd401a000, 0x10);
|
|
PXA168_DEVICE(pwm2, "pxa168-pwm", 1, NONE, 0xd401a400, 0x10);
|
|
PXA168_DEVICE(pwm3, "pxa168-pwm", 2, NONE, 0xd401a800, 0x10);
|
|
PXA168_DEVICE(pwm4, "pxa168-pwm", 3, NONE, 0xd401ac00, 0x10);
|
|
PXA168_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99);
|
|
PXA168_DEVICE(ssp1, "pxa168-ssp", 0, SSP1, 0xd401b000, 0x40, 52, 53);
|
|
PXA168_DEVICE(ssp2, "pxa168-ssp", 1, SSP2, 0xd401c000, 0x40, 54, 55);
|
|
PXA168_DEVICE(ssp3, "pxa168-ssp", 2, SSP3, 0xd401f000, 0x40, 56, 57);
|
|
PXA168_DEVICE(ssp4, "pxa168-ssp", 3, SSP4, 0xd4020000, 0x40, 58, 59);
|
|
PXA168_DEVICE(ssp5, "pxa168-ssp", 4, SSP5, 0xd4021000, 0x40, 60, 61);
|
|
PXA168_DEVICE(fb, "pxa168-fb", -1, LCD, 0xd420b000, 0x1c8);
|
|
PXA168_DEVICE(keypad, "pxa27x-keypad", -1, KEYPAD, 0xd4012000, 0x4c);
|
|
PXA168_DEVICE(eth, "pxa168-eth", -1, MFU, 0xc0800000, 0x0fff);
|
|
|
|
struct resource pxa168_usb_host_resources[] = {
|
|
/* USB Host conroller register base */
|
|
[0] = {
|
|
.start = 0xd4209000,
|
|
.end = 0xd4209000 + 0x200,
|
|
.flags = IORESOURCE_MEM,
|
|
.name = "pxa168-usb-host",
|
|
},
|
|
/* USB PHY register base */
|
|
[1] = {
|
|
.start = 0xd4206000,
|
|
.end = 0xd4206000 + 0xff,
|
|
.flags = IORESOURCE_MEM,
|
|
.name = "pxa168-usb-phy",
|
|
},
|
|
[2] = {
|
|
.start = IRQ_PXA168_USB2,
|
|
.end = IRQ_PXA168_USB2,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static u64 pxa168_usb_host_dmamask = DMA_BIT_MASK(32);
|
|
struct platform_device pxa168_device_usb_host = {
|
|
.name = "pxa168-ehci",
|
|
.id = -1,
|
|
.dev = {
|
|
.dma_mask = &pxa168_usb_host_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
},
|
|
|
|
.num_resources = ARRAY_SIZE(pxa168_usb_host_resources),
|
|
.resource = pxa168_usb_host_resources,
|
|
};
|
|
|
|
int __init pxa168_add_usb_host(struct pxa168_usb_pdata *pdata)
|
|
{
|
|
pxa168_device_usb_host.dev.platform_data = pdata;
|
|
return platform_device_register(&pxa168_device_usb_host);
|
|
}
|