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ARM: Merge for-2635-4/spi-devs 

Merge branch 'for-2635-4/spi-devs' into for-2635-4/partial2

Conflicts:
	arch/arm/mach-s5pc100/include/mach/map.h
	arch/arm/mach-s5pv210/Makefile
hifive-unleashed-5.1
Ben Dooks 2010-05-20 19:40:24 +09:00
parent 84eb9ecce2 ef2f07d31c
commit 45c8fa8784
18 changed files with 818 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/mach-s5p6440/Makefile
View File

@ -21,3 +21,4 @@ obj-$(CONFIG_MACH_SMDK6440) += mach-smdk6440.o
# device support
obj-y += dev-audio.o
obj-$(CONFIG_S3C64XX_DEV_SPI) += dev-spi.o

176
arch/arm/mach-s5p6440/dev-spi.c 100644
View File

@ -0,0 +1,176 @@
/* linux/arch/arm/mach-s5p6440/dev-spi.c
*
* Copyright (C) 2010 Samsung Electronics Co. Ltd.
* Jaswinder Singh <jassi.brar@samsung.com>
*
* 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/platform_device.h>
#include <linux/dma-mapping.h>
#include <mach/dma.h>
#include <mach/map.h>
#include <mach/irqs.h>
#include <mach/gpio.h>
#include <mach/spi-clocks.h>
#include <plat/s3c64xx-spi.h>
#include <plat/gpio-cfg.h>
static char *spi_src_clks[] = {
[S5P6440_SPI_SRCCLK_PCLK] = "pclk",
[S5P6440_SPI_SRCCLK_SCLK] = "spi_epll",
};
/* SPI Controller platform_devices */
/* Since we emulate multi-cs capability, we do not touch the CS.
* The emulated CS is toggled by board specific mechanism, as it can
* be either some immediate GPIO or some signal out of some other
* chip in between ... or some yet another way.
* We simply do not assume anything about CS.
*/
static int s5p6440_spi_cfg_gpio(struct platform_device *pdev)
{
switch (pdev->id) {
case 0:
s3c_gpio_cfgpin(S5P6440_GPC(0), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5P6440_GPC(1), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5P6440_GPC(2), S3C_GPIO_SFN(2));
s3c_gpio_setpull(S5P6440_GPC(0), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5P6440_GPC(1), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5P6440_GPC(2), S3C_GPIO_PULL_UP);
break;
case 1:
s3c_gpio_cfgpin(S5P6440_GPC(4), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5P6440_GPC(5), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5P6440_GPC(6), S3C_GPIO_SFN(2));
s3c_gpio_setpull(S5P6440_GPC(4), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5P6440_GPC(5), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5P6440_GPC(6), S3C_GPIO_PULL_UP);
break;
default:
dev_err(&pdev->dev, "Invalid SPI Controller number!");
return -EINVAL;
}
return 0;
}
static struct resource s5p6440_spi0_resource[] = {
[0] = {
.start = S5P6440_PA_SPI0,
.end = S5P6440_PA_SPI0 + 0x100 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = DMACH_SPI0_TX,
.end = DMACH_SPI0_TX,
.flags = IORESOURCE_DMA,
},
[2] = {
.start = DMACH_SPI0_RX,
.end = DMACH_SPI0_RX,
.flags = IORESOURCE_DMA,
},
[3] = {
.start = IRQ_SPI0,
.end = IRQ_SPI0,
.flags = IORESOURCE_IRQ,
},
};
static struct s3c64xx_spi_info s5p6440_spi0_pdata = {
.cfg_gpio = s5p6440_spi_cfg_gpio,
.fifo_lvl_mask = 0x1ff,
.rx_lvl_offset = 15,
};
static u64 spi_dmamask = DMA_BIT_MASK(32);
struct platform_device s5p6440_device_spi0 = {
.name = "s3c64xx-spi",
.id = 0,
.num_resources = ARRAY_SIZE(s5p6440_spi0_resource),
.resource = s5p6440_spi0_resource,
.dev = {
.dma_mask = &spi_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &s5p6440_spi0_pdata,
},
};
static struct resource s5p6440_spi1_resource[] = {
[0] = {
.start = S5P6440_PA_SPI1,
.end = S5P6440_PA_SPI1 + 0x100 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = DMACH_SPI1_TX,
.end = DMACH_SPI1_TX,
.flags = IORESOURCE_DMA,
},
[2] = {
.start = DMACH_SPI1_RX,
.end = DMACH_SPI1_RX,
.flags = IORESOURCE_DMA,
},
[3] = {
.start = IRQ_SPI1,
.end = IRQ_SPI1,
.flags = IORESOURCE_IRQ,
},
};
static struct s3c64xx_spi_info s5p6440_spi1_pdata = {
.cfg_gpio = s5p6440_spi_cfg_gpio,
.fifo_lvl_mask = 0x7f,
.rx_lvl_offset = 15,
};
struct platform_device s5p6440_device_spi1 = {
.name = "s3c64xx-spi",
.id = 1,
.num_resources = ARRAY_SIZE(s5p6440_spi1_resource),
.resource = s5p6440_spi1_resource,
.dev = {
.dma_mask = &spi_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &s5p6440_spi1_pdata,
},
};
void __init s5p6440_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
{
struct s3c64xx_spi_info *pd;
/* Reject invalid configuration */
if (!num_cs || src_clk_nr < 0
|| src_clk_nr > S5P6440_SPI_SRCCLK_SCLK) {
printk(KERN_ERR "%s: Invalid SPI configuration\n", __func__);
return;
}
switch (cntrlr) {
case 0:
pd = &s5p6440_spi0_pdata;
break;
case 1:
pd = &s5p6440_spi1_pdata;
break;
default:
printk(KERN_ERR "%s: Invalid SPI controller(%d)\n",
__func__, cntrlr);
return;
}
pd->num_cs = num_cs;
pd->src_clk_nr = src_clk_nr;
pd->src_clk_name = spi_src_clks[src_clk_nr];
}

3
arch/arm/mach-s5p6440/include/mach/map.h
View File

@ -54,6 +54,9 @@
#define S5P6440_PA_IIC0 (0xEC104000)
#define S5P6440_PA_SPI0 0xEC400000
#define S5P6440_PA_SPI1 0xEC500000
#define S5P6440_PA_HSOTG (0xED100000)
#define S5P6440_PA_HSMMC0 (0xED800000)

17
arch/arm/mach-s5p6440/include/mach/spi-clocks.h 100644
View File

@ -0,0 +1,17 @@
/* linux/arch/arm/mach-s5p6440/include/mach/spi-clocks.h
*
* Copyright (C) 2010 Samsung Electronics Co. Ltd.
* Jaswinder Singh <jassi.brar@samsung.com>
*
* 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.
*/
#ifndef __S5P6440_PLAT_SPI_CLKS_H
#define __S5P6440_PLAT_SPI_CLKS_H __FILE__
#define S5P6440_SPI_SRCCLK_PCLK 0
#define S5P6440_SPI_SRCCLK_SCLK 1
#endif /* __S5P6440_PLAT_SPI_CLKS_H */

1
arch/arm/mach-s5p6442/Makefile
View File

@ -21,3 +21,4 @@ obj-$(CONFIG_MACH_SMDK6442) += mach-smdk6442.o
# device support
obj-y += dev-audio.o
obj-$(CONFIG_S3C64XX_DEV_SPI) += dev-spi.o

123
arch/arm/mach-s5p6442/dev-spi.c 100644
View File

@ -0,0 +1,123 @@
/* linux/arch/arm/mach-s5p6442/dev-spi.c
*
* Copyright (C) 2010 Samsung Electronics Co. Ltd.
* Jaswinder Singh <jassi.brar@samsung.com>
*
* 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/platform_device.h>
#include <linux/dma-mapping.h>
#include <mach/dma.h>
#include <mach/map.h>
#include <mach/irqs.h>
#include <mach/gpio.h>
#include <mach/spi-clocks.h>
#include <plat/s3c64xx-spi.h>
#include <plat/gpio-cfg.h>
static char *spi_src_clks[] = {
[S5P6442_SPI_SRCCLK_PCLK] = "pclk",
[S5P6442_SPI_SRCCLK_SCLK] = "spi_epll",
};
/* SPI Controller platform_devices */
/* Since we emulate multi-cs capability, we do not touch the CS.
* The emulated CS is toggled by board specific mechanism, as it can
* be either some immediate GPIO or some signal out of some other
* chip in between ... or some yet another way.
* We simply do not assume anything about CS.
*/
static int s5p6442_spi_cfg_gpio(struct platform_device *pdev)
{
switch (pdev->id) {
case 0:
s3c_gpio_cfgpin(S5P6442_GPB(0), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5P6442_GPB(2), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5P6442_GPB(3), S3C_GPIO_SFN(2));
s3c_gpio_setpull(S5P6442_GPB(0), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5P6442_GPB(2), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5P6442_GPB(3), S3C_GPIO_PULL_UP);
break;
default:
dev_err(&pdev->dev, "Invalid SPI Controller number!");
return -EINVAL;
}
return 0;
}
static struct resource s5p6442_spi0_resource[] = {
[0] = {
.start = S5P6442_PA_SPI,
.end = S5P6442_PA_SPI + 0x100 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = DMACH_SPI0_TX,
.end = DMACH_SPI0_TX,
.flags = IORESOURCE_DMA,
},
[2] = {
.start = DMACH_SPI0_RX,
.end = DMACH_SPI0_RX,
.flags = IORESOURCE_DMA,
},
[3] = {
.start = IRQ_SPI0,
.end = IRQ_SPI0,
.flags = IORESOURCE_IRQ,
},
};
static struct s3c64xx_spi_info s5p6442_spi0_pdata = {
.cfg_gpio = s5p6442_spi_cfg_gpio,
.fifo_lvl_mask = 0x1ff,
.rx_lvl_offset = 15,
};
static u64 spi_dmamask = DMA_BIT_MASK(32);
struct platform_device s5p6442_device_spi = {
.name = "s3c64xx-spi",
.id = 0,
.num_resources = ARRAY_SIZE(s5p6442_spi0_resource),
.resource = s5p6442_spi0_resource,
.dev = {
.dma_mask = &spi_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &s5p6442_spi0_pdata,
},
};
void __init s5p6442_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
{
struct s3c64xx_spi_info *pd;
/* Reject invalid configuration */
if (!num_cs || src_clk_nr < 0
|| src_clk_nr > S5P6442_SPI_SRCCLK_SCLK) {
printk(KERN_ERR "%s: Invalid SPI configuration\n", __func__);
return;
}
switch (cntrlr) {
case 0:
pd = &s5p6442_spi0_pdata;
break;
default:
printk(KERN_ERR "%s: Invalid SPI controller(%d)\n",
__func__, cntrlr);
return;
}
pd->num_cs = num_cs;
pd->src_clk_nr = src_clk_nr;
pd->src_clk_name = spi_src_clks[src_clk_nr];
}

2
arch/arm/mach-s5p6442/include/mach/map.h
View File

@ -54,6 +54,8 @@
#define S5P6442_PA_SDRAM (0x20000000)
#define S5P_PA_SDRAM S5P6442_PA_SDRAM
#define S5P6442_PA_SPI 0xEC300000
/* I2S */
#define S5P6442_PA_I2S0 0xC0B00000
#define S5P6442_PA_I2S1 0xF2200000

17
arch/arm/mach-s5p6442/include/mach/spi-clocks.h 100644
View File

@ -0,0 +1,17 @@
/* linux/arch/arm/mach-s5p6442/include/mach/spi-clocks.h
*
* Copyright (C) 2010 Samsung Electronics Co. Ltd.
* Jaswinder Singh <jassi.brar@samsung.com>
*
* 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.
*/
#ifndef __S5P6442_PLAT_SPI_CLKS_H
#define __S5P6442_PLAT_SPI_CLKS_H __FILE__
#define S5P6442_SPI_SRCCLK_PCLK 0
#define S5P6442_SPI_SRCCLK_SCLK 1
#endif /* __S5P6442_PLAT_SPI_CLKS_H */

4
arch/arm/mach-s5pc100/Makefile
View File

@ -21,6 +21,10 @@ obj-$(CONFIG_S5PC100_SETUP_I2C1) += setup-i2c1.o
obj-$(CONFIG_S5PC100_SETUP_SDHCI) += setup-sdhci.o
obj-$(CONFIG_S5PC100_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
# device support
obj-y += dev-audio.o
obj-$(CONFIG_S3C64XX_DEV_SPI) += dev-spi.o
# machine support
obj-$(CONFIG_MACH_SMDKC100) += mach-smdkc100.o

233
arch/arm/mach-s5pc100/dev-spi.c 100644
View File

@ -0,0 +1,233 @@
/* linux/arch/arm/mach-s5pc100/dev-spi.c
*
* Copyright (C) 2010 Samsung Electronics Co. Ltd.
* Jaswinder Singh <jassi.brar@samsung.com>
*
* 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/platform_device.h>
#include <linux/dma-mapping.h>
#include <mach/dma.h>
#include <mach/map.h>
#include <mach/gpio.h>
#include <mach/spi-clocks.h>
#include <plat/s3c64xx-spi.h>
#include <plat/gpio-cfg.h>
#include <plat/irqs.h>
static char *spi_src_clks[] = {
[S5PC100_SPI_SRCCLK_PCLK] = "pclk",
[S5PC100_SPI_SRCCLK_48M] = "spi_48m",
[S5PC100_SPI_SRCCLK_SPIBUS] = "spi_bus",
};
/* SPI Controller platform_devices */
/* Since we emulate multi-cs capability, we do not touch the CS.
* The emulated CS is toggled by board specific mechanism, as it can
* be either some immediate GPIO or some signal out of some other
* chip in between ... or some yet another way.
* We simply do not assume anything about CS.
*/
static int s5pc100_spi_cfg_gpio(struct platform_device *pdev)
{
switch (pdev->id) {
case 0:
s3c_gpio_cfgpin(S5PC100_GPB(0), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5PC100_GPB(1), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5PC100_GPB(2), S3C_GPIO_SFN(2));
s3c_gpio_setpull(S5PC100_GPB(0), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5PC100_GPB(1), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5PC100_GPB(2), S3C_GPIO_PULL_UP);
break;
case 1:
s3c_gpio_cfgpin(S5PC100_GPB(4), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5PC100_GPB(5), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5PC100_GPB(6), S3C_GPIO_SFN(2));
s3c_gpio_setpull(S5PC100_GPB(4), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5PC100_GPB(5), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5PC100_GPB(6), S3C_GPIO_PULL_UP);
break;
case 2:
s3c_gpio_cfgpin(S5PC100_GPG3(0), S3C_GPIO_SFN(3));
s3c_gpio_cfgpin(S5PC100_GPG3(2), S3C_GPIO_SFN(3));
s3c_gpio_cfgpin(S5PC100_GPG3(3), S3C_GPIO_SFN(3));
s3c_gpio_setpull(S5PC100_GPG3(0), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5PC100_GPG3(2), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5PC100_GPG3(3), S3C_GPIO_PULL_UP);
break;
default:
dev_err(&pdev->dev, "Invalid SPI Controller number!");
return -EINVAL;
}
return 0;
}
static struct resource s5pc100_spi0_resource[] = {
[0] = {
.start = S5PC100_PA_SPI0,
.end = S5PC100_PA_SPI0 + 0x100 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = DMACH_SPI0_TX,
.end = DMACH_SPI0_TX,
.flags = IORESOURCE_DMA,
},
[2] = {
.start = DMACH_SPI0_RX,
.end = DMACH_SPI0_RX,
.flags = IORESOURCE_DMA,
},
[3] = {
.start = IRQ_SPI0,
.end = IRQ_SPI0,
.flags = IORESOURCE_IRQ,
},
};
static struct s3c64xx_spi_info s5pc100_spi0_pdata = {
.cfg_gpio = s5pc100_spi_cfg_gpio,
.fifo_lvl_mask = 0x7f,
.rx_lvl_offset = 13,
.high_speed = 1,
};
static u64 spi_dmamask = DMA_BIT_MASK(32);
struct platform_device s5pc100_device_spi0 = {
.name = "s3c64xx-spi",
.id = 0,
.num_resources = ARRAY_SIZE(s5pc100_spi0_resource),
.resource = s5pc100_spi0_resource,
.dev = {
.dma_mask = &spi_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &s5pc100_spi0_pdata,
},
};
static struct resource s5pc100_spi1_resource[] = {
[0] = {
.start = S5PC100_PA_SPI1,
.end = S5PC100_PA_SPI1 + 0x100 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = DMACH_SPI1_TX,
.end = DMACH_SPI1_TX,
.flags = IORESOURCE_DMA,
},
[2] = {
.start = DMACH_SPI1_RX,
.end = DMACH_SPI1_RX,
.flags = IORESOURCE_DMA,
},
[3] = {
.start = IRQ_SPI1,
.end = IRQ_SPI1,
.flags = IORESOURCE_IRQ,
},
};
static struct s3c64xx_spi_info s5pc100_spi1_pdata = {
.cfg_gpio = s5pc100_spi_cfg_gpio,
.fifo_lvl_mask = 0x7f,
.rx_lvl_offset = 13,
.high_speed = 1,
};
struct platform_device s5pc100_device_spi1 = {
.name = "s3c64xx-spi",
.id = 1,
.num_resources = ARRAY_SIZE(s5pc100_spi1_resource),
.resource = s5pc100_spi1_resource,
.dev = {
.dma_mask = &spi_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &s5pc100_spi1_pdata,
},
};
static struct resource s5pc100_spi2_resource[] = {
[0] = {
.start = S5PC100_PA_SPI2,
.end = S5PC100_PA_SPI2 + 0x100 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = DMACH_SPI2_TX,
.end = DMACH_SPI2_TX,
.flags = IORESOURCE_DMA,
},
[2] = {
.start = DMACH_SPI2_RX,
.end = DMACH_SPI2_RX,
.flags = IORESOURCE_DMA,
},
[3] = {
.start = IRQ_SPI2,
.end = IRQ_SPI2,
.flags = IORESOURCE_IRQ,
},
};
static struct s3c64xx_spi_info s5pc100_spi2_pdata = {
.cfg_gpio = s5pc100_spi_cfg_gpio,
.fifo_lvl_mask = 0x7f,
.rx_lvl_offset = 13,
.high_speed = 1,
};
struct platform_device s5pc100_device_spi2 = {
.name = "s3c64xx-spi",
.id = 2,
.num_resources = ARRAY_SIZE(s5pc100_spi2_resource),
.resource = s5pc100_spi2_resource,
.dev = {
.dma_mask = &spi_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &s5pc100_spi2_pdata,
},
};
void __init s5pc100_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
{
struct s3c64xx_spi_info *pd;
/* Reject invalid configuration */
if (!num_cs || src_clk_nr < 0
|| src_clk_nr > S5PC100_SPI_SRCCLK_SPIBUS) {
printk(KERN_ERR "%s: Invalid SPI configuration\n", __func__);
return;
}
switch (cntrlr) {
case 0:
pd = &s5pc100_spi0_pdata;
break;
case 1:
pd = &s5pc100_spi1_pdata;
break;
case 2:
pd = &s5pc100_spi2_pdata;
break;
default:
printk(KERN_ERR "%s: Invalid SPI controller(%d)\n",
__func__, cntrlr);
return;
}
pd->num_cs = num_cs;
pd->src_clk_nr = src_clk_nr;
pd->src_clk_name = spi_src_clks[src_clk_nr];
}

10
arch/arm/mach-s5pc100/include/mach/map.h
View File

@ -53,6 +53,15 @@
#define S5PC100_PA_IIC0 (0xEC100000)
#define S5PC100_PA_IIC1 (0xEC200000)
/* SPI */
#define S5PC100_PA_SPI0 0xEC300000
#define S5PC100_PA_SPI1 0xEC400000
#define S5PC100_PA_SPI2 0xEC500000
/* USB HS OTG */
#define S5PC100_PA_USB_HSOTG (0xED200000)
#define S5PC100_PA_USB_HSPHY (0xED300000)
#define S5PC100_PA_FB (0xEE000000)
#define S5PC100_PA_AC97 0xF2300000
@ -63,7 +72,6 @@
/* KEYPAD */
#define S5PC100_PA_KEYPAD (0xF3100000)
>>>>>>> for-2635-4/s5p-devs:arch/arm/mach-s5pc100/include/mach/map.h
#define S5PC100_PA_HSMMC(x) (0xED800000 + ((x) * 0x100000))

18
arch/arm/mach-s5pc100/include/mach/spi-clocks.h 100644
View File

@ -0,0 +1,18 @@
/* linux/arch/arm/mach-s5pc100/include/mach/spi-clocks.h
*
* Copyright (C) 2010 Samsung Electronics Co. Ltd.
* Jaswinder Singh <jassi.brar@samsung.com>
*
* 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.
*/
#ifndef __S5PC100_PLAT_SPI_CLKS_H
#define __S5PC100_PLAT_SPI_CLKS_H __FILE__
#define S5PC100_SPI_SRCCLK_PCLK 0
#define S5PC100_SPI_SRCCLK_48M 1
#define S5PC100_SPI_SRCCLK_SPIBUS 2
#endif /* __S5PC100_PLAT_SPI_CLKS_H */

2
arch/arm/mach-s5pv210/Makefile
View File

@ -25,6 +25,8 @@ obj-$(CONFIG_MACH_GONI) += mach-goni.o
# device support
obj-y += dev-audio.o
obj-$(CONFIG_S3C64XX_DEV_SPI) += dev-spi.o
obj-$(CONFIG_S5PV210_SETUP_FB_24BPP) += setup-fb-24bpp.o
obj-$(CONFIG_S5PV210_SETUP_I2C1) += setup-i2c1.o
obj-$(CONFIG_S5PV210_SETUP_I2C2) += setup-i2c2.o

178
arch/arm/mach-s5pv210/dev-spi.c 100644
View File

@ -0,0 +1,178 @@
/* linux/arch/arm/mach-s5pv210/dev-spi.c
*
* Copyright (C) 2010 Samsung Electronics Co. Ltd.
* Jaswinder Singh <jassi.brar@samsung.com>
*
* 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/platform_device.h>
#include <linux/dma-mapping.h>
#include <mach/dma.h>
#include <mach/map.h>
#include <mach/irqs.h>
#include <mach/gpio.h>
#include <mach/spi-clocks.h>
#include <plat/s3c64xx-spi.h>
#include <plat/gpio-cfg.h>
static char *spi_src_clks[] = {
[S5PV210_SPI_SRCCLK_PCLK] = "pclk",
[S5PV210_SPI_SRCCLK_SCLK] = "sclk_spi",
};
/* SPI Controller platform_devices */
/* Since we emulate multi-cs capability, we do not touch the CS.
* The emulated CS is toggled by board specific mechanism, as it can
* be either some immediate GPIO or some signal out of some other
* chip in between ... or some yet another way.
* We simply do not assume anything about CS.
*/
static int s5pv210_spi_cfg_gpio(struct platform_device *pdev)
{
switch (pdev->id) {
case 0:
s3c_gpio_cfgpin(S5PV210_GPB(0), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5PV210_GPB(1), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5PV210_GPB(2), S3C_GPIO_SFN(2));
s3c_gpio_setpull(S5PV210_GPB(0), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5PV210_GPB(1), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5PV210_GPB(2), S3C_GPIO_PULL_UP);
break;
case 1:
s3c_gpio_cfgpin(S5PV210_GPB(4), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5PV210_GPB(5), S3C_GPIO_SFN(2));
s3c_gpio_cfgpin(S5PV210_GPB(6), S3C_GPIO_SFN(2));
s3c_gpio_setpull(S5PV210_GPB(4), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5PV210_GPB(5), S3C_GPIO_PULL_UP);
s3c_gpio_setpull(S5PV210_GPB(6), S3C_GPIO_PULL_UP);
break;
default:
dev_err(&pdev->dev, "Invalid SPI Controller number!");
return -EINVAL;
}
return 0;
}
static struct resource s5pv210_spi0_resource[] = {
[0] = {
.start = S5PV210_PA_SPI0,
.end = S5PV210_PA_SPI0 + 0x100 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = DMACH_SPI0_TX,
.end = DMACH_SPI0_TX,
.flags = IORESOURCE_DMA,
},
[2] = {
.start = DMACH_SPI0_RX,
.end = DMACH_SPI0_RX,
.flags = IORESOURCE_DMA,
},
[3] = {
.start = IRQ_SPI0,
.end = IRQ_SPI0,
.flags = IORESOURCE_IRQ,
},
};
static struct s3c64xx_spi_info s5pv210_spi0_pdata = {
.cfg_gpio = s5pv210_spi_cfg_gpio,
.fifo_lvl_mask = 0x1ff,
.rx_lvl_offset = 15,
.high_speed = 1,
};
static u64 spi_dmamask = DMA_BIT_MASK(32);
struct platform_device s5pv210_device_spi0 = {
.name = "s3c64xx-spi",
.id = 0,
.num_resources = ARRAY_SIZE(s5pv210_spi0_resource),
.resource = s5pv210_spi0_resource,
.dev = {
.dma_mask = &spi_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &s5pv210_spi0_pdata,
},
};
static struct resource s5pv210_spi1_resource[] = {
[0] = {
.start = S5PV210_PA_SPI1,
.end = S5PV210_PA_SPI1 + 0x100 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = DMACH_SPI1_TX,
.end = DMACH_SPI1_TX,
.flags = IORESOURCE_DMA,
},
[2] = {
.start = DMACH_SPI1_RX,
.end = DMACH_SPI1_RX,
.flags = IORESOURCE_DMA,
},
[3] = {
.start = IRQ_SPI1,
.end = IRQ_SPI1,
.flags = IORESOURCE_IRQ,
},
};
static struct s3c64xx_spi_info s5pv210_spi1_pdata = {
.cfg_gpio = s5pv210_spi_cfg_gpio,
.fifo_lvl_mask = 0x7f,
.rx_lvl_offset = 15,
.high_speed = 1,
};
struct platform_device s5pv210_device_spi1 = {
.name = "s3c64xx-spi",
.id = 1,
.num_resources = ARRAY_SIZE(s5pv210_spi1_resource),
.resource = s5pv210_spi1_resource,
.dev = {
.dma_mask = &spi_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &s5pv210_spi1_pdata,
},
};
void __init s5pv210_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
{
struct s3c64xx_spi_info *pd;
/* Reject invalid configuration */
if (!num_cs || src_clk_nr < 0
|| src_clk_nr > S5PV210_SPI_SRCCLK_SCLK) {
printk(KERN_ERR "%s: Invalid SPI configuration\n", __func__);
return;
}
switch (cntrlr) {
case 0:
pd = &s5pv210_spi0_pdata;
break;
case 1:
pd = &s5pv210_spi1_pdata;
break;
default:
printk(KERN_ERR "%s: Invalid SPI controller(%d)\n",
__func__, cntrlr);
return;
}
pd->num_cs = num_cs;
pd->src_clk_nr = src_clk_nr;
pd->src_clk_name = spi_src_clks[src_clk_nr];
}

4
arch/arm/mach-s5pv210/include/mach/map.h
View File

@ -25,6 +25,10 @@
#define S5PV210_PA_GPIO (0xE0200000)
#define S5P_PA_GPIO S5PV210_PA_GPIO
/* SPI */
#define S5PV210_PA_SPI0 0xE1300000
#define S5PV210_PA_SPI1 0xE1400000
#define S5PV210_PA_IIC0 (0xE1800000)
#define S5PV210_PA_IIC1 (0xFAB00000)
#define S5PV210_PA_IIC2 (0xE1A00000)

17
arch/arm/mach-s5pv210/include/mach/spi-clocks.h 100644
View File

@ -0,0 +1,17 @@
/* linux/arch/arm/mach-s5pv210/include/mach/spi-clocks.h
*
* Copyright (C) 2010 Samsung Electronics Co. Ltd.
* Jaswinder Singh <jassi.brar@samsung.com>
*
* 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.
*/
#ifndef __S5PV210_PLAT_SPI_CLKS_H
#define __S5PV210_PLAT_SPI_CLKS_H __FILE__
#define S5PV210_SPI_SRCCLK_PCLK 0
#define S5PV210_SPI_SRCCLK_SCLK 1
#endif /* __S5PV210_PLAT_SPI_CLKS_H */

9
arch/arm/plat-samsung/include/plat/devs.h
View File

@ -58,6 +58,14 @@ extern struct platform_device s3c_device_hsmmc2;
extern struct platform_device s3c_device_spi0;
extern struct platform_device s3c_device_spi1;
extern struct platform_device s5pc100_device_spi0;
extern struct platform_device s5pc100_device_spi1;
extern struct platform_device s5pc100_device_spi2;
extern struct platform_device s5pv210_device_spi0;
extern struct platform_device s5pv210_device_spi1;
extern struct platform_device s5p6440_device_spi0;
extern struct platform_device s5p6440_device_spi1;
extern struct platform_device s3c_device_hwmon;
extern struct platform_device s3c_device_nand;
@ -77,6 +85,7 @@ extern struct platform_device s5p6442_device_pcm0;
extern struct platform_device s5p6442_device_pcm1;
extern struct platform_device s5p6442_device_iis0;
extern struct platform_device s5p6442_device_iis1;
extern struct platform_device s5p6442_device_spi;
extern struct platform_device s5p6440_device_pcm;
extern struct platform_device s5p6440_device_iis;

4
arch/arm/plat-samsung/include/plat/s3c64xx-spi.h
View File

@ -63,5 +63,9 @@ struct s3c64xx_spi_info {
* has some chips attached to it.
*/
extern void s3c64xx_spi_set_info(int cntrlr, int src_clk_nr, int num_cs);
extern void s5pc100_spi_set_info(int cntrlr, int src_clk_nr, int num_cs);
extern void s5pv210_spi_set_info(int cntrlr, int src_clk_nr, int num_cs);
extern void s5p6440_spi_set_info(int cntrlr, int src_clk_nr, int num_cs);
extern void s5p6442_spi_set_info(int cntrlr, int src_clk_nr, int num_cs);
#endif /* __S3C64XX_PLAT_SPI_H */