/*
* Texas Instruments TNETV107X SoC devices
*
* Copyright (C) 2010 Texas Instruments
*
* 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 version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/clk.h>
#include <linux/slab.h>
#include <mach/common.h>
#include <mach/irqs.h>
#include <mach/edma.h>
#include <mach/tnetv107x.h>
#include "clock.h"
/* Base addresses for on-chip devices */
#define TNETV107X_TPCC_BASE 0x01c00000
#define TNETV107X_TPTC0_BASE 0x01c10000
#define TNETV107X_TPTC1_BASE 0x01c10400
#define TNETV107X_WDOG_BASE 0x08086700
#define TNETV107X_TSC_BASE 0x08088500
#define TNETV107X_SDIO0_BASE 0x08088700
#define TNETV107X_SDIO1_BASE 0x08088800
#define TNETV107X_KEYPAD_BASE 0x08088a00
#define TNETV107X_SSP_BASE 0x08088c00
#define TNETV107X_ASYNC_EMIF_CNTRL_BASE 0x08200000
#define TNETV107X_ASYNC_EMIF_DATA_CE0_BASE 0x30000000
#define TNETV107X_ASYNC_EMIF_DATA_CE1_BASE 0x40000000
#define TNETV107X_ASYNC_EMIF_DATA_CE2_BASE 0x44000000
#define TNETV107X_ASYNC_EMIF_DATA_CE3_BASE 0x48000000
/* TNETV107X specific EDMA3 information */
#define EDMA_TNETV107X_NUM_DMACH 64
#define EDMA_TNETV107X_NUM_TCC 64
#define EDMA_TNETV107X_NUM_PARAMENTRY 128
#define EDMA_TNETV107X_NUM_EVQUE 2
#define EDMA_TNETV107X_NUM_TC 2
#define EDMA_TNETV107X_CHMAP_EXIST 0
#define EDMA_TNETV107X_NUM_REGIONS 4
#define TNETV107X_DMACH2EVENT_MAP0 0x3C0CE000u
#define TNETV107X_DMACH2EVENT_MAP1 0x000FFFFFu
#define TNETV107X_DMACH_SDIO0_RX 26
#define TNETV107X_DMACH_SDIO0_TX 27
#define TNETV107X_DMACH_SDIO1_RX 28
#define TNETV107X_DMACH_SDIO1_TX 29
static const s8 edma_tc_mapping[][2] = {
/* event queue no TC no */
{ 0, 0 },
{ 1, 1 },
{ -1, -1 }
};
static const s8 edma_priority_mapping[][2] = {
/* event queue no Prio */
{ 0, 3 },
{ 1, 7 },
{ -1, -1 }
};
static struct edma_soc_info edma_cc0_info = {
.n_channel = EDMA_TNETV107X_NUM_DMACH,
.n_region = EDMA_TNETV107X_NUM_REGIONS,
.n_slot = EDMA_TNETV107X_NUM_PARAMENTRY,
.n_tc = EDMA_TNETV107X_NUM_TC,
.n_cc = 1,
.queue_tc_mapping = edma_tc_mapping,
.queue_priority_mapping = edma_priority_mapping,
.default_queue = EVENTQ_1,
};
static struct edma_soc_info *tnetv107x_edma_info[EDMA_MAX_CC] = {
&edma_cc0_info,
};
static struct resource edma_resources[] = {
{
.name = "edma_cc0",
.start = TNETV107X_TPCC_BASE,
.end = TNETV107X_TPCC_BASE + SZ_32K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma_tc0",
.start = TNETV107X_TPTC0_BASE,
.end = TNETV107X_TPTC0_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma_tc1",
.start = TNETV107X_TPTC1_BASE,
.end = TNETV107X_TPTC1_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "edma0",
.start = IRQ_TNETV107X_TPCC,
.flags = IORESOURCE_IRQ,
},
{
.name = "edma0_err",
.start = IRQ_TNETV107X_TPCC_ERR,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device edma_device = {
.name = "edma",
.id = -1,
.num_resources = ARRAY_SIZE(edma_resources),
.resource = edma_resources,
.dev.platform_data = tnetv107x_edma_info,
};
static struct plat_serial8250_port serial_data[] = {
{
.mapbase = TNETV107X_UART0_BASE,
.irq = IRQ_TNETV107X_UART0,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_FIXED_TYPE | UPF_IOREMAP,
.type = PORT_AR7,
.iotype = UPIO_MEM32,
.regshift = 2,
},
{
.mapbase = TNETV107X_UART1_BASE,
.irq = IRQ_TNETV107X_UART1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_FIXED_TYPE | UPF_IOREMAP,
.type = PORT_AR7,
.iotype = UPIO_MEM32,
.regshift = 2,
},
{
.mapbase = TNETV107X_UART2_BASE,
.irq = IRQ_TNETV107X_UART2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_FIXED_TYPE | UPF_IOREMAP,
.type = PORT_AR7,
.iotype = UPIO_MEM32,
.regshift = 2,
},
{
.flags = 0,
},
};
struct platform_device tnetv107x_serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev.platform_data = serial_data,
};
static struct resource mmc0_resources[] = {
{ /* Memory mapped registers */
.start = TNETV107X_SDIO0_BASE,
.end = TNETV107X_SDIO0_BASE + 0x0ff,
.flags = IORESOURCE_MEM
},
{ /* MMC interrupt */
.start = IRQ_TNETV107X_MMC0,
.flags = IORESOURCE_IRQ
},
{ /* SDIO interrupt */
.start = IRQ_TNETV107X_SDIO0,
.flags = IORESOURCE_IRQ
},
{ /* DMA RX */
.start = EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO0_RX),
.flags = IORESOURCE_DMA
},
{ /* DMA TX */
.start = EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO0_TX),
.flags = IORESOURCE_DMA
},
};
static struct resource mmc1_resources[] = {
{ /* Memory mapped registers */
.start = TNETV107X_SDIO1_BASE,
.end = TNETV107X_SDIO1_BASE + 0x0ff,
.flags = IORESOURCE_MEM
},
{ /* MMC interrupt */
.start = IRQ_TNETV107X_MMC1,
.flags = IORESOURCE_IRQ
},
{ /* SDIO interrupt */
.start = IRQ_TNETV107X_SDIO1,
.flags = IORESOURCE_IRQ
},
{ /* DMA RX */
.start = EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO1_RX),
.flags = IORESOURCE_DMA
},
{ /* DMA TX */
.start = EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO1_TX),
.flags = IORESOURCE_DMA
},
};
static u64 mmc0_dma_mask = DMA_BIT_MASK(32);
static u64 mmc1_dma_mask = DMA_BIT_MASK(32);
static struct platform_device mmc_devices[2] = {
{
.name = "davinci_mmc",
.id = 0,
.dev = {
.dma_mask = &mmc0_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.num_resources = ARRAY_SIZE(mmc0_resources),
.resource = mmc0_resources
},
{
.name = "davinci_mmc",
.id = 1,
.dev = {
.dma_mask = &mmc1_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.num_resources = ARRAY_SIZE(mmc1_resources),
.resource = mmc1_resources
},
};
static const u32 emif_windows[] = {
TNETV107X_ASYNC_EMIF_DATA_CE0_BASE, TNETV107X_ASYNC_EMIF_DATA_CE1_BASE,
TNETV107X_ASYNC_EMIF_DATA_CE2_BASE, TNETV107X_ASYNC_EMIF_DATA_CE3_BASE,
};
static const u32 emif_window_sizes[] = { SZ_256M, SZ_64M, SZ_64M, SZ_64M };
static struct resource wdt_resources[] = {
{
.start = TNETV107X_WDOG_BASE,
.end = TNETV107X_WDOG_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
};
struct platform_device tnetv107x_wdt_device = {
.name = "tnetv107x_wdt",
.id = 0,
.num_resources = ARRAY_SIZE(wdt_resources),
.resource = wdt_resources,
};
static int __init nand_init(int chipsel, struct davinci_nand_pdata *data)
{
struct resource res[2];
struct platform_device *pdev;
u32 range;
int ret;
/* Figure out the resource range from the ale/cle masks */
range = max(data->mask_cle, data->mask_ale);
range = PAGE_ALIGN(range + 4) - 1;
if (range >= emif_window_sizes[chipsel])
return -EINVAL;
pdev = kzalloc(sizeof(*pdev), GFP_KERNEL);
if (!pdev)
return -ENOMEM;
pdev->name = "davinci_nand";
pdev->id = chipsel;
pdev->dev.platform_data = data;
memset(res, 0, sizeof(res));
res[0].start = emif_windows[chipsel];
res[0].end = res[0].start + range;
res[0].flags = IORESOURCE_MEM;
res[1].start = TNETV107X_ASYNC_EMIF_CNTRL_BASE;
res[1].end = res[1].start + SZ_4K - 1;
res[1].flags = IORESOURCE_MEM;
ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
if (ret < 0) {
kfree(pdev);
return ret;
}
return platform_device_register(pdev);
}
static struct resource keypad_resources[] = {
{
.start = TNETV107X_KEYPAD_BASE,
.end = TNETV107X_KEYPAD_BASE + 0xff,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_TNETV107X_KEYPAD,
.flags = IORESOURCE_IRQ,
.name = "press",
},
{
.start = IRQ_TNETV107X_KEYPAD_FREE,
.flags = IORESOURCE_IRQ,
.name = "release",
},
};
static struct platform_device keypad_device = {
.name = "tnetv107x-keypad",
.num_resources = ARRAY_SIZE(keypad_resources),
.resource = keypad_resources,
};
static struct resource tsc_resources[] = {
{
.start = TNETV107X_TSC_BASE,
.end = TNETV107X_TSC_BASE + 0xff,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_TNETV107X_TSC,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device tsc_device = {
.name = "tnetv107x-ts",
.num_resources = ARRAY_SIZE(tsc_resources),
.resource = tsc_resources,
};
static struct resource ssp_resources[] = {
{
.start = TNETV107X_SSP_BASE,
.end = TNETV107X_SSP_BASE + 0x1ff,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_TNETV107X_SSP,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device ssp_device = {
.name = "ti-ssp",
.id = -1,
.num_resources = ARRAY_SIZE(ssp_resources),
.resource = ssp_resources,
};
void __init tnetv107x_devices_init(struct tnetv107x_device_info *info)
{
int i, error;
struct clk *tsc_clk;
/*
* The reset defaults for tnetv107x tsc clock divider is set too high.
* This forces the clock down to a range that allows the ADC to
* complete sample conversion in time.
*/
tsc_clk = clk_get(NULL, "sys_tsc_clk");
if (tsc_clk) {
error = clk_set_rate(tsc_clk, 5000000);
WARN_ON(error < 0);
clk_put(tsc_clk);
}
platform_device_register(&edma_device);
platform_device_register(&tnetv107x_wdt_device);
platform_device_register(&tsc_device);
if (info->serial_config)
davinci_serial_init(info->serial_config);
for (i = 0; i < 2; i++)
if (info->mmc_config[i]) {
mmc_devices[i].dev.platform_data = info->mmc_config[i];
platform_device_register(&mmc_devices[i]);
}
for (i = 0; i < 4; i++)
if (info->nand_config[i])
nand_init(i, info->nand_config[i]);
if (info->keypad_config) {
keypad_device.dev.platform_data = info->keypad_config;
platform_device_register(&keypad_device);
}
if (info->ssp_config) {
ssp_device.dev.platform_data = info->ssp_config;
platform_device_register(&ssp_device);
}
}
