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-rw-r--r--arch/arm/mach-s5pc100/Makefile4
-rw-r--r--arch/arm/mach-s5pc100/dev-spi.c233
-rw-r--r--arch/arm/mach-s5pc100/include/mach/map.h5
-rw-r--r--arch/arm/mach-s5pc100/include/mach/spi-clocks.h18
4 files changed, 260 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pc100/Makefile b/arch/arm/mach-s5pc100/Makefile
index 373bc546eae8..65a2911b4c7d 100644
--- a/arch/arm/mach-s5pc100/Makefile
+++ b/arch/arm/mach-s5pc100/Makefile
@@ -20,5 +20,9 @@ obj-$(CONFIG_S5PC100_SETUP_FB_24BPP) += setup-fb-24bpp.o
obj-$(CONFIG_S5PC100_SETUP_I2C1) += setup-i2c1.o
obj-$(CONFIG_S5PC100_SETUP_SDHCI) += setup-sdhci.o
+# device support
+obj-y += dev-audio.o
+obj-$(CONFIG_S3C64XX_DEV_SPI) += dev-spi.o
+
# machine support
obj-$(CONFIG_MACH_SMDKC100) += mach-smdkc100.o
diff --git a/arch/arm/mach-s5pc100/dev-spi.c b/arch/arm/mach-s5pc100/dev-spi.c
new file mode 100644
index 000000000000..14618c346057
--- /dev/null
+++ b/arch/arm/mach-s5pc100/dev-spi.c
@@ -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];
+}
diff --git a/arch/arm/mach-s5pc100/include/mach/map.h b/arch/arm/mach-s5pc100/include/mach/map.h
index 4681ebe8bef6..5ff7931c5362 100644
--- a/arch/arm/mach-s5pc100/include/mach/map.h
+++ b/arch/arm/mach-s5pc100/include/mach/map.h
@@ -82,6 +82,11 @@
#define S5PC100_PA_I2C (0xEC100000)
#define S5PC100_PA_I2C1 (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)
diff --git a/arch/arm/mach-s5pc100/include/mach/spi-clocks.h b/arch/arm/mach-s5pc100/include/mach/spi-clocks.h
new file mode 100644
index 000000000000..65e426370bb2
--- /dev/null
+++ b/arch/arm/mach-s5pc100/include/mach/spi-clocks.h
@@ -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 */
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-02 16:27:35 +0300