mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 21:57:43 +00:00
389eda15e0
Support clk in gpio driver. There's no gpio clock in PXA25x and PXA27x. So use dummy clk instead. And move the gpio edge initialization into gpio driver for arch-mmp. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
185 lines
5 KiB
C
185 lines
5 KiB
C
/*
|
|
* linux/arch/arm/mach-mmp/pxa910.c
|
|
*
|
|
* Code specific to PXA910
|
|
*
|
|
* 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/platform_device.h>
|
|
|
|
#include <asm/mach/time.h>
|
|
#include <mach/addr-map.h>
|
|
#include <mach/regs-apbc.h>
|
|
#include <mach/regs-apmu.h>
|
|
#include <mach/cputype.h>
|
|
#include <mach/irqs.h>
|
|
#include <mach/dma.h>
|
|
#include <mach/mfp.h>
|
|
#include <mach/devices.h>
|
|
|
|
#include "common.h"
|
|
#include "clock.h"
|
|
|
|
#define MFPR_VIRT_BASE (APB_VIRT_BASE + 0x1e000)
|
|
|
|
static struct mfp_addr_map pxa910_mfp_addr_map[] __initdata =
|
|
{
|
|
MFP_ADDR_X(GPIO0, GPIO54, 0xdc),
|
|
MFP_ADDR_X(GPIO67, GPIO98, 0x1b8),
|
|
MFP_ADDR_X(GPIO100, GPIO109, 0x238),
|
|
|
|
MFP_ADDR(GPIO123, 0xcc),
|
|
MFP_ADDR(GPIO124, 0xd0),
|
|
|
|
MFP_ADDR(DF_IO0, 0x40),
|
|
MFP_ADDR(DF_IO1, 0x3c),
|
|
MFP_ADDR(DF_IO2, 0x38),
|
|
MFP_ADDR(DF_IO3, 0x34),
|
|
MFP_ADDR(DF_IO4, 0x30),
|
|
MFP_ADDR(DF_IO5, 0x2c),
|
|
MFP_ADDR(DF_IO6, 0x28),
|
|
MFP_ADDR(DF_IO7, 0x24),
|
|
MFP_ADDR(DF_IO8, 0x20),
|
|
MFP_ADDR(DF_IO9, 0x1c),
|
|
MFP_ADDR(DF_IO10, 0x18),
|
|
MFP_ADDR(DF_IO11, 0x14),
|
|
MFP_ADDR(DF_IO12, 0x10),
|
|
MFP_ADDR(DF_IO13, 0xc),
|
|
MFP_ADDR(DF_IO14, 0x8),
|
|
MFP_ADDR(DF_IO15, 0x4),
|
|
|
|
MFP_ADDR(DF_nCS0_SM_nCS2, 0x44),
|
|
MFP_ADDR(DF_nCS1_SM_nCS3, 0x48),
|
|
MFP_ADDR(SM_nCS0, 0x4c),
|
|
MFP_ADDR(SM_nCS1, 0x50),
|
|
MFP_ADDR(DF_WEn, 0x54),
|
|
MFP_ADDR(DF_REn, 0x58),
|
|
MFP_ADDR(DF_CLE_SM_OEn, 0x5c),
|
|
MFP_ADDR(DF_ALE_SM_WEn, 0x60),
|
|
MFP_ADDR(SM_SCLK, 0x64),
|
|
MFP_ADDR(DF_RDY0, 0x68),
|
|
MFP_ADDR(SM_BE0, 0x6c),
|
|
MFP_ADDR(SM_BE1, 0x70),
|
|
MFP_ADDR(SM_ADV, 0x74),
|
|
MFP_ADDR(DF_RDY1, 0x78),
|
|
MFP_ADDR(SM_ADVMUX, 0x7c),
|
|
MFP_ADDR(SM_RDY, 0x80),
|
|
|
|
MFP_ADDR_X(MMC1_DAT7, MMC1_WP, 0x84),
|
|
|
|
MFP_ADDR_END,
|
|
};
|
|
|
|
void __init pxa910_init_irq(void)
|
|
{
|
|
icu_init_irq();
|
|
}
|
|
|
|
/* APB peripheral clocks */
|
|
static APBC_CLK(uart1, PXA910_UART0, 1, 14745600);
|
|
static APBC_CLK(uart2, PXA910_UART1, 1, 14745600);
|
|
static APBC_CLK(twsi0, PXA168_TWSI0, 1, 33000000);
|
|
static APBC_CLK(twsi1, PXA168_TWSI1, 1, 33000000);
|
|
static APBC_CLK(pwm1, PXA910_PWM1, 1, 13000000);
|
|
static APBC_CLK(pwm2, PXA910_PWM2, 1, 13000000);
|
|
static APBC_CLK(pwm3, PXA910_PWM3, 1, 13000000);
|
|
static APBC_CLK(pwm4, PXA910_PWM4, 1, 13000000);
|
|
static APBC_CLK(gpio, PXA910_GPIO, 0, 13000000);
|
|
|
|
static APMU_CLK(nand, NAND, 0x19b, 156000000);
|
|
static APMU_CLK(u2o, USB, 0x1b, 480000000);
|
|
|
|
/* device and clock bindings */
|
|
static struct clk_lookup pxa910_clkregs[] = {
|
|
INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL),
|
|
INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
|
|
INIT_CLKREG(&clk_twsi0, "pxa2xx-i2c.0", NULL),
|
|
INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.1", NULL),
|
|
INIT_CLKREG(&clk_pwm1, "pxa910-pwm.0", NULL),
|
|
INIT_CLKREG(&clk_pwm2, "pxa910-pwm.1", NULL),
|
|
INIT_CLKREG(&clk_pwm3, "pxa910-pwm.2", NULL),
|
|
INIT_CLKREG(&clk_pwm4, "pxa910-pwm.3", NULL),
|
|
INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
|
|
INIT_CLKREG(&clk_gpio, "pxa-gpio", NULL),
|
|
INIT_CLKREG(&clk_u2o, "pxa-u2o", "U2OCLK"),
|
|
};
|
|
|
|
static int __init pxa910_init(void)
|
|
{
|
|
if (cpu_is_pxa910()) {
|
|
mfp_init_base(MFPR_VIRT_BASE);
|
|
mfp_init_addr(pxa910_mfp_addr_map);
|
|
pxa_init_dma(IRQ_PXA910_DMA_INT0, 32);
|
|
clkdev_add_table(ARRAY_AND_SIZE(pxa910_clkregs));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
postcore_initcall(pxa910_init);
|
|
|
|
/* system timer - clock enabled, 3.25MHz */
|
|
#define TIMER_CLK_RST (APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3))
|
|
|
|
static void __init pxa910_timer_init(void)
|
|
{
|
|
/* reset and configure */
|
|
__raw_writel(APBC_APBCLK | APBC_RST, APBC_PXA910_TIMERS);
|
|
__raw_writel(TIMER_CLK_RST, APBC_PXA910_TIMERS);
|
|
|
|
timer_init(IRQ_PXA910_AP1_TIMER1);
|
|
}
|
|
|
|
struct sys_timer pxa910_timer = {
|
|
.init = pxa910_timer_init,
|
|
};
|
|
|
|
/* on-chip devices */
|
|
|
|
/* NOTE: there are totally 3 UARTs on PXA910:
|
|
*
|
|
* UART1 - Slow UART (can be used both by AP and CP)
|
|
* UART2/3 - Fast UART
|
|
*
|
|
* To be backward compatible with the legacy FFUART/BTUART/STUART sequence,
|
|
* they are re-ordered as:
|
|
*
|
|
* pxa910_device_uart1 - UART2 as FFUART
|
|
* pxa910_device_uart2 - UART3 as BTUART
|
|
*
|
|
* UART1 is not used by AP for the moment.
|
|
*/
|
|
PXA910_DEVICE(uart1, "pxa2xx-uart", 0, UART2, 0xd4017000, 0x30, 21, 22);
|
|
PXA910_DEVICE(uart2, "pxa2xx-uart", 1, UART3, 0xd4018000, 0x30, 23, 24);
|
|
PXA910_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28);
|
|
PXA910_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28);
|
|
PXA910_DEVICE(pwm1, "pxa910-pwm", 0, NONE, 0xd401a000, 0x10);
|
|
PXA910_DEVICE(pwm2, "pxa910-pwm", 1, NONE, 0xd401a400, 0x10);
|
|
PXA910_DEVICE(pwm3, "pxa910-pwm", 2, NONE, 0xd401a800, 0x10);
|
|
PXA910_DEVICE(pwm4, "pxa910-pwm", 3, NONE, 0xd401ac00, 0x10);
|
|
PXA910_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99);
|
|
|
|
struct resource pxa910_resource_gpio[] = {
|
|
{
|
|
.start = 0xd4019000,
|
|
.end = 0xd4019fff,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.start = IRQ_PXA910_AP_GPIO,
|
|
.end = IRQ_PXA910_AP_GPIO,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
struct platform_device pxa910_device_gpio = {
|
|
.name = "pxa-gpio",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(pxa910_resource_gpio),
|
|
.resource = pxa910_resource_gpio,
|
|
};
|