19ff3bf2e8
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
282 lines
6.7 KiB
C
282 lines
6.7 KiB
C
/*
|
|
* mach-davinci/devices.c
|
|
*
|
|
* DaVinci platform device setup/initialization
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <asm/mach/map.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <mach/i2c.h>
|
|
#include <mach/irqs.h>
|
|
#include <mach/cputype.h>
|
|
#include <mach/mux.h>
|
|
#include <mach/edma.h>
|
|
#include <mach/mmc.h>
|
|
#include <mach/time.h>
|
|
|
|
#define DAVINCI_I2C_BASE 0x01C21000
|
|
#define DAVINCI_MMCSD0_BASE 0x01E10000
|
|
#define DM355_MMCSD0_BASE 0x01E11000
|
|
#define DM355_MMCSD1_BASE 0x01E00000
|
|
#define DM365_MMCSD0_BASE 0x01D11000
|
|
#define DM365_MMCSD1_BASE 0x01D00000
|
|
|
|
static struct resource i2c_resources[] = {
|
|
{
|
|
.start = DAVINCI_I2C_BASE,
|
|
.end = DAVINCI_I2C_BASE + 0x40,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = IRQ_I2C,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device davinci_i2c_device = {
|
|
.name = "i2c_davinci",
|
|
.id = 1,
|
|
.num_resources = ARRAY_SIZE(i2c_resources),
|
|
.resource = i2c_resources,
|
|
};
|
|
|
|
void __init davinci_init_i2c(struct davinci_i2c_platform_data *pdata)
|
|
{
|
|
if (cpu_is_davinci_dm644x())
|
|
davinci_cfg_reg(DM644X_I2C);
|
|
|
|
davinci_i2c_device.dev.platform_data = pdata;
|
|
(void) platform_device_register(&davinci_i2c_device);
|
|
}
|
|
|
|
#if defined(CONFIG_MMC_DAVINCI) || defined(CONFIG_MMC_DAVINCI_MODULE)
|
|
|
|
static u64 mmcsd0_dma_mask = DMA_BIT_MASK(32);
|
|
|
|
static struct resource mmcsd0_resources[] = {
|
|
{
|
|
/* different on dm355 */
|
|
.start = DAVINCI_MMCSD0_BASE,
|
|
.end = DAVINCI_MMCSD0_BASE + SZ_4K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
/* IRQs: MMC/SD, then SDIO */
|
|
{
|
|
.start = IRQ_MMCINT,
|
|
.flags = IORESOURCE_IRQ,
|
|
}, {
|
|
/* different on dm355 */
|
|
.start = IRQ_SDIOINT,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
/* DMA channels: RX, then TX */
|
|
{
|
|
.start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT),
|
|
.flags = IORESOURCE_DMA,
|
|
}, {
|
|
.start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCTXEVT),
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
};
|
|
|
|
static struct platform_device davinci_mmcsd0_device = {
|
|
.name = "davinci_mmc",
|
|
.id = 0,
|
|
.dev = {
|
|
.dma_mask = &mmcsd0_dma_mask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
},
|
|
.num_resources = ARRAY_SIZE(mmcsd0_resources),
|
|
.resource = mmcsd0_resources,
|
|
};
|
|
|
|
static u64 mmcsd1_dma_mask = DMA_BIT_MASK(32);
|
|
|
|
static struct resource mmcsd1_resources[] = {
|
|
{
|
|
.start = DM355_MMCSD1_BASE,
|
|
.end = DM355_MMCSD1_BASE + SZ_4K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
/* IRQs: MMC/SD, then SDIO */
|
|
{
|
|
.start = IRQ_DM355_MMCINT1,
|
|
.flags = IORESOURCE_IRQ,
|
|
}, {
|
|
.start = IRQ_DM355_SDIOINT1,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
/* DMA channels: RX, then TX */
|
|
{
|
|
.start = EDMA_CTLR_CHAN(0, 30), /* rx */
|
|
.flags = IORESOURCE_DMA,
|
|
}, {
|
|
.start = EDMA_CTLR_CHAN(0, 31), /* tx */
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
};
|
|
|
|
static struct platform_device davinci_mmcsd1_device = {
|
|
.name = "davinci_mmc",
|
|
.id = 1,
|
|
.dev = {
|
|
.dma_mask = &mmcsd1_dma_mask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
},
|
|
.num_resources = ARRAY_SIZE(mmcsd1_resources),
|
|
.resource = mmcsd1_resources,
|
|
};
|
|
|
|
|
|
void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
|
|
{
|
|
struct platform_device *pdev = NULL;
|
|
|
|
if (WARN_ON(cpu_is_davinci_dm646x()))
|
|
return;
|
|
|
|
/* REVISIT: update PINMUX, ARM_IRQMUX, and EDMA_EVTMUX here too;
|
|
* for example if MMCSD1 is used for SDIO, maybe DAT2 is unused.
|
|
*
|
|
* FIXME dm6441 (no MMC/SD), dm357 (one), and dm335 (two) are
|
|
* not handled right here ...
|
|
*/
|
|
switch (module) {
|
|
case 1:
|
|
if (cpu_is_davinci_dm355()) {
|
|
/* REVISIT we may not need all these pins if e.g. this
|
|
* is a hard-wired SDIO device...
|
|
*/
|
|
davinci_cfg_reg(DM355_SD1_CMD);
|
|
davinci_cfg_reg(DM355_SD1_CLK);
|
|
davinci_cfg_reg(DM355_SD1_DATA0);
|
|
davinci_cfg_reg(DM355_SD1_DATA1);
|
|
davinci_cfg_reg(DM355_SD1_DATA2);
|
|
davinci_cfg_reg(DM355_SD1_DATA3);
|
|
} else if (cpu_is_davinci_dm365()) {
|
|
void __iomem *pupdctl1 =
|
|
IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE + 0x7c);
|
|
|
|
/* Configure pull down control */
|
|
__raw_writel((__raw_readl(pupdctl1) & ~0x400),
|
|
pupdctl1);
|
|
|
|
mmcsd1_resources[0].start = DM365_MMCSD1_BASE;
|
|
mmcsd1_resources[0].end = DM365_MMCSD1_BASE +
|
|
SZ_4K - 1;
|
|
mmcsd0_resources[2].start = IRQ_DM365_SDIOINT1;
|
|
} else
|
|
break;
|
|
|
|
pdev = &davinci_mmcsd1_device;
|
|
break;
|
|
case 0:
|
|
if (cpu_is_davinci_dm355()) {
|
|
mmcsd0_resources[0].start = DM355_MMCSD0_BASE;
|
|
mmcsd0_resources[0].end = DM355_MMCSD0_BASE + SZ_4K - 1;
|
|
mmcsd0_resources[2].start = IRQ_DM355_SDIOINT0;
|
|
|
|
/* expose all 6 MMC0 signals: CLK, CMD, DATA[0..3] */
|
|
davinci_cfg_reg(DM355_MMCSD0);
|
|
|
|
/* enable RX EDMA */
|
|
davinci_cfg_reg(DM355_EVT26_MMC0_RX);
|
|
} else if (cpu_is_davinci_dm365()) {
|
|
mmcsd0_resources[0].start = DM365_MMCSD0_BASE;
|
|
mmcsd0_resources[0].end = DM365_MMCSD0_BASE +
|
|
SZ_4K - 1;
|
|
mmcsd0_resources[2].start = IRQ_DM365_SDIOINT0;
|
|
} else if (cpu_is_davinci_dm644x()) {
|
|
/* REVISIT: should this be in board-init code? */
|
|
void __iomem *base =
|
|
IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE);
|
|
|
|
/* Power-on 3.3V IO cells */
|
|
__raw_writel(0, base + DM64XX_VDD3P3V_PWDN);
|
|
/*Set up the pull regiter for MMC */
|
|
davinci_cfg_reg(DM644X_MSTK);
|
|
}
|
|
|
|
pdev = &davinci_mmcsd0_device;
|
|
break;
|
|
}
|
|
|
|
if (WARN_ON(!pdev))
|
|
return;
|
|
|
|
pdev->dev.platform_data = config;
|
|
platform_device_register(pdev);
|
|
}
|
|
|
|
#else
|
|
|
|
void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
|
|
{
|
|
}
|
|
|
|
#endif
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static struct resource wdt_resources[] = {
|
|
{
|
|
.start = DAVINCI_WDOG_BASE,
|
|
.end = DAVINCI_WDOG_BASE + SZ_1K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
};
|
|
|
|
struct platform_device davinci_wdt_device = {
|
|
.name = "watchdog",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(wdt_resources),
|
|
.resource = wdt_resources,
|
|
};
|
|
|
|
static void davinci_init_wdt(void)
|
|
{
|
|
platform_device_register(&davinci_wdt_device);
|
|
}
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
struct davinci_timer_instance davinci_timer_instance[2] = {
|
|
{
|
|
.base = IO_ADDRESS(DAVINCI_TIMER0_BASE),
|
|
.bottom_irq = IRQ_TINT0_TINT12,
|
|
.top_irq = IRQ_TINT0_TINT34,
|
|
},
|
|
{
|
|
.base = IO_ADDRESS(DAVINCI_TIMER1_BASE),
|
|
.bottom_irq = IRQ_TINT1_TINT12,
|
|
.top_irq = IRQ_TINT1_TINT34,
|
|
},
|
|
};
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static int __init davinci_init_devices(void)
|
|
{
|
|
/* please keep these calls, and their implementations above,
|
|
* in alphabetical order so they're easier to sort through.
|
|
*/
|
|
davinci_init_wdt();
|
|
|
|
return 0;
|
|
}
|
|
arch_initcall(davinci_init_devices);
|
|
|