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linux/arch/arm/mach-davinci/devices-da8xx.c
Cyril Chemparathy c78a5bc2e7 Davinci: watchdog reset separation across socs 
The earlier watchdog reset mechanism had a couple of limitations.  First, it
embedded a reference to "davinci_wdt_device" inside common code.  This
forced all derived platforms (da8xx and tnetv107x) to define such a device.
This also would have caused problems in including multiple socs in a single
build due to symbol redefinition.

With this patch, davinci_watchdog_reset() now takes the platform device as an
argument.  The davinci_soc_info struct has been extended to include a reset
function and a watchdog platform_device.  arch_reset() then uses these
elements to reset the system in a SoC specific fashion.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Tested-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-05-06 15:02:09 -07:00

641 lines
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/*
* DA8XX/OMAP L1XX platform device data
*
* Copyright (c) 2007-2009, MontaVista Software, Inc. <source@mvista.com>
* Derived from code that was:
* Copyright (C) 2006 Komal Shah <komal_shah802003@yahoo.com>
*
* 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/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/serial_8250.h>
#include <mach/cputype.h>
#include <mach/common.h>
#include <mach/time.h>
#include <mach/da8xx.h>
#include <mach/cpuidle.h>
#include "clock.h"
#define DA8XX_TPCC_BASE 0x01c00000
#define DA850_TPCC1_BASE 0x01e30000
#define DA8XX_TPTC0_BASE 0x01c08000
#define DA8XX_TPTC1_BASE 0x01c08400
#define DA850_TPTC2_BASE 0x01e38000
#define DA8XX_WDOG_BASE 0x01c21000 /* DA8XX_TIMER64P1_BASE */
#define DA8XX_I2C0_BASE 0x01c22000
#define DA8XX_RTC_BASE 0x01C23000
#define DA8XX_EMAC_CPPI_PORT_BASE 0x01e20000
#define DA8XX_EMAC_CPGMACSS_BASE 0x01e22000
#define DA8XX_EMAC_CPGMAC_BASE 0x01e23000
#define DA8XX_EMAC_MDIO_BASE 0x01e24000
#define DA8XX_GPIO_BASE 0x01e26000
#define DA8XX_I2C1_BASE 0x01e28000
#define DA8XX_EMAC_CTRL_REG_OFFSET 0x3000
#define DA8XX_EMAC_MOD_REG_OFFSET 0x2000
#define DA8XX_EMAC_RAM_OFFSET 0x0000
#define DA8XX_MDIO_REG_OFFSET 0x4000
#define DA8XX_EMAC_CTRL_RAM_SIZE SZ_8K
void __iomem *da8xx_syscfg0_base;
void __iomem *da8xx_syscfg1_base;
static struct plat_serial8250_port da8xx_serial_pdata[] = {
{
.mapbase = DA8XX_UART0_BASE,
.irq = IRQ_DA8XX_UARTINT0,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 2,
},
{
.mapbase = DA8XX_UART1_BASE,
.irq = IRQ_DA8XX_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 2,
},
{
.mapbase = DA8XX_UART2_BASE,
.irq = IRQ_DA8XX_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 2,
},
{
.flags = 0,
},
};
struct platform_device da8xx_serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = da8xx_serial_pdata,
},
};
static const s8 da8xx_queue_tc_mapping[][2] = {
/* {event queue no, TC no} */
{0, 0},
{1, 1},
{-1, -1}
};
static const s8 da8xx_queue_priority_mapping[][2] = {
/* {event queue no, Priority} */
{0, 3},
{1, 7},
{-1, -1}
};
static const s8 da850_queue_tc_mapping[][2] = {
/* {event queue no, TC no} */
{0, 0},
{-1, -1}
};
static const s8 da850_queue_priority_mapping[][2] = {
/* {event queue no, Priority} */
{0, 3},
{-1, -1}
};
static struct edma_soc_info da830_edma_info[] = {
{
.n_channel = 32,
.n_region = 4,
.n_slot = 128,
.n_tc = 2,
.n_cc = 1,
.queue_tc_mapping = da8xx_queue_tc_mapping,
.queue_priority_mapping = da8xx_queue_priority_mapping,
},
};
static struct edma_soc_info da850_edma_info[] = {
{
.n_channel = 32,
.n_region = 4,
.n_slot = 128,
.n_tc = 2,
.n_cc = 1,
.queue_tc_mapping = da8xx_queue_tc_mapping,
.queue_priority_mapping = da8xx_queue_priority_mapping,
},
{
.n_channel = 32,
.n_region = 4,
.n_slot = 128,
.n_tc = 1,
.n_cc = 1,
.queue_tc_mapping = da850_queue_tc_mapping,
.queue_priority_mapping = da850_queue_priority_mapping,
},
};
static struct resource da830_edma_resources[] = {
{
.name = "edma_cc0",
.start = DA8XX_TPCC_BASE,
.end = DA8XX_TPCC_BASE + SZ_32K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma_tc0",
.start = DA8XX_TPTC0_BASE,
.end = DA8XX_TPTC0_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma_tc1",
.start = DA8XX_TPTC1_BASE,
.end = DA8XX_TPTC1_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma0",
.start = IRQ_DA8XX_CCINT0,
.flags = IORESOURCE_IRQ,
},
{
.name = "edma0_err",
.start = IRQ_DA8XX_CCERRINT,
.flags = IORESOURCE_IRQ,
},
};
static struct resource da850_edma_resources[] = {
{
.name = "edma_cc0",
.start = DA8XX_TPCC_BASE,
.end = DA8XX_TPCC_BASE + SZ_32K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma_tc0",
.start = DA8XX_TPTC0_BASE,
.end = DA8XX_TPTC0_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma_tc1",
.start = DA8XX_TPTC1_BASE,
.end = DA8XX_TPTC1_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma_cc1",
.start = DA850_TPCC1_BASE,
.end = DA850_TPCC1_BASE + SZ_32K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma_tc2",
.start = DA850_TPTC2_BASE,
.end = DA850_TPTC2_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma0",
.start = IRQ_DA8XX_CCINT0,
.flags = IORESOURCE_IRQ,
},
{
.name = "edma0_err",
.start = IRQ_DA8XX_CCERRINT,
.flags = IORESOURCE_IRQ,
},
{
.name = "edma1",
.start = IRQ_DA850_CCINT1,
.flags = IORESOURCE_IRQ,
},
{
.name = "edma1_err",
.start = IRQ_DA850_CCERRINT1,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device da830_edma_device = {
.name = "edma",
.id = -1,
.dev = {
.platform_data = da830_edma_info,
},
.num_resources = ARRAY_SIZE(da830_edma_resources),
.resource = da830_edma_resources,
};
static struct platform_device da850_edma_device = {
.name = "edma",
.id = -1,
.dev = {
.platform_data = da850_edma_info,
},
.num_resources = ARRAY_SIZE(da850_edma_resources),
.resource = da850_edma_resources,
};
int __init da8xx_register_edma(void)
{
struct platform_device *pdev;
if (cpu_is_davinci_da830())
pdev = &da830_edma_device;
else if (cpu_is_davinci_da850())
pdev = &da850_edma_device;
else
return -ENODEV;
return platform_device_register(pdev);
}
static struct resource da8xx_i2c_resources0[] = {
{
.start = DA8XX_I2C0_BASE,
.end = DA8XX_I2C0_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_DA8XX_I2CINT0,
.end = IRQ_DA8XX_I2CINT0,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device da8xx_i2c_device0 = {
.name = "i2c_davinci",
.id = 1,
.num_resources = ARRAY_SIZE(da8xx_i2c_resources0),
.resource = da8xx_i2c_resources0,
};
static struct resource da8xx_i2c_resources1[] = {
{
.start = DA8XX_I2C1_BASE,
.end = DA8XX_I2C1_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_DA8XX_I2CINT1,
.end = IRQ_DA8XX_I2CINT1,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device da8xx_i2c_device1 = {
.name = "i2c_davinci",
.id = 2,
.num_resources = ARRAY_SIZE(da8xx_i2c_resources1),
.resource = da8xx_i2c_resources1,
};
int __init da8xx_register_i2c(int instance,
struct davinci_i2c_platform_data *pdata)
{
struct platform_device *pdev;
if (instance == 0)
pdev = &da8xx_i2c_device0;
else if (instance == 1)
pdev = &da8xx_i2c_device1;
else
return -EINVAL;
pdev->dev.platform_data = pdata;
return platform_device_register(pdev);
}
static struct resource da8xx_watchdog_resources[] = {
{
.start = DA8XX_WDOG_BASE,
.end = DA8XX_WDOG_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
};
struct platform_device da8xx_wdt_device = {
.name = "watchdog",
.id = -1,
.num_resources = ARRAY_SIZE(da8xx_watchdog_resources),
.resource = da8xx_watchdog_resources,
};
int __init da8xx_register_watchdog(void)
{
return platform_device_register(&da8xx_wdt_device);
}
static struct resource da8xx_emac_resources[] = {
{
.start = DA8XX_EMAC_CPPI_PORT_BASE,
.end = DA8XX_EMAC_CPPI_PORT_BASE + 0x5000 - 1,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_DA8XX_C0_RX_THRESH_PULSE,
.end = IRQ_DA8XX_C0_RX_THRESH_PULSE,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_DA8XX_C0_RX_PULSE,
.end = IRQ_DA8XX_C0_RX_PULSE,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_DA8XX_C0_TX_PULSE,
.end = IRQ_DA8XX_C0_TX_PULSE,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_DA8XX_C0_MISC_PULSE,
.end = IRQ_DA8XX_C0_MISC_PULSE,
.flags = IORESOURCE_IRQ,
},
};
struct emac_platform_data da8xx_emac_pdata = {
.ctrl_reg_offset = DA8XX_EMAC_CTRL_REG_OFFSET,
.ctrl_mod_reg_offset = DA8XX_EMAC_MOD_REG_OFFSET,
.ctrl_ram_offset = DA8XX_EMAC_RAM_OFFSET,
.mdio_reg_offset = DA8XX_MDIO_REG_OFFSET,
.ctrl_ram_size = DA8XX_EMAC_CTRL_RAM_SIZE,
.version = EMAC_VERSION_2,
};
static struct platform_device da8xx_emac_device = {
.name = "davinci_emac",
.id = 1,
.dev = {
.platform_data = &da8xx_emac_pdata,
},
.num_resources = ARRAY_SIZE(da8xx_emac_resources),
.resource = da8xx_emac_resources,
};
int __init da8xx_register_emac(void)
{
return platform_device_register(&da8xx_emac_device);
}
static struct resource da830_mcasp1_resources[] = {
{
.name = "mcasp1",
.start = DAVINCI_DA830_MCASP1_REG_BASE,
.end = DAVINCI_DA830_MCASP1_REG_BASE + (SZ_1K * 12) - 1,
.flags = IORESOURCE_MEM,
},
/* TX event */
{
.start = DAVINCI_DA830_DMA_MCASP1_AXEVT,
.end = DAVINCI_DA830_DMA_MCASP1_AXEVT,
.flags = IORESOURCE_DMA,
},
/* RX event */
{
.start = DAVINCI_DA830_DMA_MCASP1_AREVT,
.end = DAVINCI_DA830_DMA_MCASP1_AREVT,
.flags = IORESOURCE_DMA,
},
};
static struct platform_device da830_mcasp1_device = {
.name = "davinci-mcasp",
.id = 1,
.num_resources = ARRAY_SIZE(da830_mcasp1_resources),
.resource = da830_mcasp1_resources,
};
static struct resource da850_mcasp_resources[] = {
{
.name = "mcasp",
.start = DAVINCI_DA8XX_MCASP0_REG_BASE,
.end = DAVINCI_DA8XX_MCASP0_REG_BASE + (SZ_1K * 12) - 1,
.flags = IORESOURCE_MEM,
},
/* TX event */
{
.start = DAVINCI_DA8XX_DMA_MCASP0_AXEVT,
.end = DAVINCI_DA8XX_DMA_MCASP0_AXEVT,
.flags = IORESOURCE_DMA,
},
/* RX event */
{
.start = DAVINCI_DA8XX_DMA_MCASP0_AREVT,
.end = DAVINCI_DA8XX_DMA_MCASP0_AREVT,
.flags = IORESOURCE_DMA,
},
};
static struct platform_device da850_mcasp_device = {
.name = "davinci-mcasp",
.id = 0,
.num_resources = ARRAY_SIZE(da850_mcasp_resources),
.resource = da850_mcasp_resources,
};
void __init da8xx_register_mcasp(int id, struct snd_platform_data *pdata)
{
/* DA830/OMAP-L137 has 3 instances of McASP */
if (cpu_is_davinci_da830() && id == 1) {
da830_mcasp1_device.dev.platform_data = pdata;
platform_device_register(&da830_mcasp1_device);
} else if (cpu_is_davinci_da850()) {
da850_mcasp_device.dev.platform_data = pdata;
platform_device_register(&da850_mcasp_device);
}
}
static const struct display_panel disp_panel = {
QVGA,
16,
16,
COLOR_ACTIVE,
};
static struct lcd_ctrl_config lcd_cfg = {
&disp_panel,
.ac_bias = 255,
.ac_bias_intrpt = 0,
.dma_burst_sz = 16,
.bpp = 16,
.fdd = 255,
.tft_alt_mode = 0,
.stn_565_mode = 0,
.mono_8bit_mode = 0,
.invert_line_clock = 1,
.invert_frm_clock = 1,
.sync_edge = 0,
.sync_ctrl = 1,
.raster_order = 0,
};
struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata = {
.manu_name = "sharp",
.controller_data = &lcd_cfg,
.type = "Sharp_LCD035Q3DG01",
};
struct da8xx_lcdc_platform_data sharp_lk043t1dg01_pdata = {
.manu_name = "sharp",
.controller_data = &lcd_cfg,
.type = "Sharp_LK043T1DG01",
};
static struct resource da8xx_lcdc_resources[] = {
[0] = { /* registers */
.start = DA8XX_LCD_CNTRL_BASE,
.end = DA8XX_LCD_CNTRL_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
[1] = { /* interrupt */
.start = IRQ_DA8XX_LCDINT,
.end = IRQ_DA8XX_LCDINT,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device da8xx_lcdc_device = {
.name = "da8xx_lcdc",
.id = 0,
.num_resources = ARRAY_SIZE(da8xx_lcdc_resources),
.resource = da8xx_lcdc_resources,
};
int __init da8xx_register_lcdc(struct da8xx_lcdc_platform_data *pdata)
{
da8xx_lcdc_device.dev.platform_data = pdata;
return platform_device_register(&da8xx_lcdc_device);
}
static struct resource da8xx_mmcsd0_resources[] = {
{ /* registers */
.start = DA8XX_MMCSD0_BASE,
.end = DA8XX_MMCSD0_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
{ /* interrupt */
.start = IRQ_DA8XX_MMCSDINT0,
.end = IRQ_DA8XX_MMCSDINT0,
.flags = IORESOURCE_IRQ,
},
{ /* DMA RX */
.start = EDMA_CTLR_CHAN(0, 16),
.end = EDMA_CTLR_CHAN(0, 16),
.flags = IORESOURCE_DMA,
},
{ /* DMA TX */
.start = EDMA_CTLR_CHAN(0, 17),
.end = EDMA_CTLR_CHAN(0, 17),
.flags = IORESOURCE_DMA,
},
};
static struct platform_device da8xx_mmcsd0_device = {
.name = "davinci_mmc",
.id = 0,
.num_resources = ARRAY_SIZE(da8xx_mmcsd0_resources),
.resource = da8xx_mmcsd0_resources,
};
int __init da8xx_register_mmcsd0(struct davinci_mmc_config *config)
{
da8xx_mmcsd0_device.dev.platform_data = config;
return platform_device_register(&da8xx_mmcsd0_device);
}
static struct resource da8xx_rtc_resources[] = {
{
.start = DA8XX_RTC_BASE,
.end = DA8XX_RTC_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
{ /* timer irq */
.start = IRQ_DA8XX_RTC,
.end = IRQ_DA8XX_RTC,
.flags = IORESOURCE_IRQ,
},
{ /* alarm irq */
.start = IRQ_DA8XX_RTC,
.end = IRQ_DA8XX_RTC,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device da8xx_rtc_device = {
.name = "omap_rtc",
.id = -1,
.num_resources = ARRAY_SIZE(da8xx_rtc_resources),
.resource = da8xx_rtc_resources,
};
int da8xx_register_rtc(void)
{
int ret;
/* Unlock the rtc's registers */
__raw_writel(0x83e70b13, IO_ADDRESS(DA8XX_RTC_BASE + 0x6c));
__raw_writel(0x95a4f1e0, IO_ADDRESS(DA8XX_RTC_BASE + 0x70));
ret = platform_device_register(&da8xx_rtc_device);
if (!ret)
/* Atleast on DA850, RTC is a wakeup source */
device_init_wakeup(&da8xx_rtc_device.dev, true);
return ret;
}
static void __iomem *da8xx_ddr2_ctlr_base;
void __iomem * __init da8xx_get_mem_ctlr(void)
{
if (da8xx_ddr2_ctlr_base)
return da8xx_ddr2_ctlr_base;
da8xx_ddr2_ctlr_base = ioremap(DA8XX_DDR2_CTL_BASE, SZ_32K);
if (!da8xx_ddr2_ctlr_base)
pr_warning("%s: Unable to map DDR2 controller", __func__);
return da8xx_ddr2_ctlr_base;
}
static struct resource da8xx_cpuidle_resources[] = {
{
.start = DA8XX_DDR2_CTL_BASE,
.end = DA8XX_DDR2_CTL_BASE + SZ_32K - 1,
.flags = IORESOURCE_MEM,
},
};
/* DA8XX devices support DDR2 power down */
static struct davinci_cpuidle_config da8xx_cpuidle_pdata = {
.ddr2_pdown = 1,
};
static struct platform_device da8xx_cpuidle_device = {
.name = "cpuidle-davinci",
.num_resources = ARRAY_SIZE(da8xx_cpuidle_resources),
.resource = da8xx_cpuidle_resources,
.dev = {
.platform_data = &da8xx_cpuidle_pdata,
},
};
int __init da8xx_register_cpuidle(void)
{
da8xx_cpuidle_pdata.ddr2_ctlr_base = da8xx_get_mem_ctlr();
return platform_device_register(&da8xx_cpuidle_device);
}
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