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authorArnd Bergmann <arnd@arndb.de>2011-12-28 03:56:51 +0400
committerArnd Bergmann <arnd@arndb.de>2011-12-28 03:56:51 +0400
commit8a44930a11de8d66f92145fd2d2464ab4fba696b (patch)
treed21f312d04fc14fae2f9aa3473f1424ad10d2647 /arch/arm/mach-s5pv210
parentcecd902ab4d1c489a121ad4b36f8982842802af5 (diff)
parent7d38af51d587ad953eef786a6922bcd1482cae5c (diff)
downloadlinux-8a44930a11de8d66f92145fd2d2464ab4fba696b.tar.xz
Merge branch 'next-samsung-cleanup-spi4' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into samsung/cleanup
Diffstat (limited to 'arch/arm/mach-s5pv210')
-rw-r--r--arch/arm/mach-s5pv210/Kconfig5
-rw-r--r--arch/arm/mach-s5pv210/Makefile2
-rw-r--r--arch/arm/mach-s5pv210/dev-spi.c169
-rw-r--r--arch/arm/mach-s5pv210/include/mach/map.h2
-rw-r--r--arch/arm/mach-s5pv210/setup-spi.c51
5 files changed, 59 insertions, 170 deletions
diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig
index 646057ab2e4c..2cdc42e838b8 100644
--- a/arch/arm/mach-s5pv210/Kconfig
+++ b/arch/arm/mach-s5pv210/Kconfig
@@ -60,6 +60,11 @@ config S5PV210_SETUP_FIMC
help
Common setup code for the camera interfaces.
+config S5PV210_SETUP_SPI
+ bool
+ help
+ Common setup code for SPI GPIO configurations.
+
menu "S5PC110 Machines"
config MACH_AQUILA
diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile
index 53c346a4cbb1..471df5d2d25c 100644
--- a/arch/arm/mach-s5pv210/Makefile
+++ b/arch/arm/mach-s5pv210/Makefile
@@ -27,7 +27,6 @@ obj-$(CONFIG_MACH_TORBRECK) += mach-torbreck.o
# device support
obj-y += dev-audio.o
-obj-$(CONFIG_S3C64XX_DEV_SPI) += dev-spi.o
obj-$(CONFIG_S5PV210_SETUP_FB_24BPP) += setup-fb-24bpp.o
obj-$(CONFIG_S5PV210_SETUP_FIMC) += setup-fimc.o
@@ -36,3 +35,4 @@ obj-$(CONFIG_S5PV210_SETUP_I2C2) += setup-i2c2.o
obj-$(CONFIG_S5PV210_SETUP_IDE) += setup-ide.o
obj-$(CONFIG_S5PV210_SETUP_KEYPAD) += setup-keypad.o
obj-$(CONFIG_S5PV210_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
+obj-$(CONFIG_S5PV210_SETUP_SPI) += setup-spi.o
diff --git a/arch/arm/mach-s5pv210/dev-spi.c b/arch/arm/mach-s5pv210/dev-spi.c
deleted file mode 100644
index 39bef19dbd68..000000000000
--- a/arch/arm/mach-s5pv210/dev-spi.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/* 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 <linux/gpio.h>
-
-#include <mach/dma.h>
-#include <mach/map.h>
-#include <mach/irqs.h>
-#include <mach/spi-clocks.h>
-
-#include <plat/s3c64xx-spi.h>
-#include <plat/gpio-cfg.h>
-
-/* 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)
-{
- unsigned int base;
-
- switch (pdev->id) {
- case 0:
- base = S5PV210_GPB(0);
- break;
-
- case 1:
- base = S5PV210_GPB(4);
- break;
-
- default:
- dev_err(&pdev->dev, "Invalid SPI Controller number!");
- return -EINVAL;
- }
-
- s3c_gpio_cfgall_range(base, 3,
- S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
-
- 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,
- .tx_st_done = 25,
-};
-
-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,
- .tx_st_done = 25,
-};
-
-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;
-}
diff --git a/arch/arm/mach-s5pv210/include/mach/map.h b/arch/arm/mach-s5pv210/include/mach/map.h
index 7ff609f1568b..89c34b8f73bf 100644
--- a/arch/arm/mach-s5pv210/include/mach/map.h
+++ b/arch/arm/mach-s5pv210/include/mach/map.h
@@ -109,6 +109,8 @@
#define S3C_PA_RTC S5PV210_PA_RTC
#define S3C_PA_USB_HSOTG S5PV210_PA_HSOTG
#define S3C_PA_WDT S5PV210_PA_WATCHDOG
+#define S3C_PA_SPI0 S5PV210_PA_SPI0
+#define S3C_PA_SPI1 S5PV210_PA_SPI1
#define S5P_PA_CHIPID S5PV210_PA_CHIPID
#define S5P_PA_FIMC0 S5PV210_PA_FIMC0
diff --git a/arch/arm/mach-s5pv210/setup-spi.c b/arch/arm/mach-s5pv210/setup-spi.c
new file mode 100644
index 000000000000..f43c5048a37d
--- /dev/null
+++ b/arch/arm/mach-s5pv210/setup-spi.c
@@ -0,0 +1,51 @@
+/* linux/arch/arm/mach-s5pv210/setup-spi.c
+ *
+ * Copyright (C) 2011 Samsung Electronics Ltd.
+ * http://www.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/gpio.h>
+#include <linux/platform_device.h>
+
+#include <plat/gpio-cfg.h>
+#include <plat/s3c64xx-spi.h>
+
+#ifdef CONFIG_S3C64XX_DEV_SPI0
+struct s3c64xx_spi_info s3c64xx_spi0_pdata = {
+ .fifo_lvl_mask = 0x1ff,
+ .rx_lvl_offset = 15,
+ .high_speed = 1,
+ .tx_st_done = 25,
+};
+
+int s3c64xx_spi0_cfg_gpio(struct platform_device *dev)
+{
+ s3c_gpio_cfgpin(S5PV210_GPB(0), S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(S5PV210_GPB(0), S3C_GPIO_PULL_UP);
+ s3c_gpio_cfgall_range(S5PV210_GPB(2), 2,
+ S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_S3C64XX_DEV_SPI1
+struct s3c64xx_spi_info s3c64xx_spi1_pdata = {
+ .fifo_lvl_mask = 0x7f,
+ .rx_lvl_offset = 15,
+ .high_speed = 1,
+ .tx_st_done = 25,
+};
+
+int s3c64xx_spi1_cfg_gpio(struct platform_device *dev)
+{
+ s3c_gpio_cfgpin(S5PV210_GPB(4), S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(S5PV210_GPB(4), S3C_GPIO_PULL_UP);
+ s3c_gpio_cfgall_range(S5PV210_GPB(6), 2,
+ S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+ return 0;
+}
+#endif