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-rw-r--r--arch/arm/mach-s3c24xx/Kconfig5
-rw-r--r--arch/arm/mach-s3c24xx/Makefile1
-rw-r--r--arch/arm/mach-s3c24xx/clock-s3c2416.c1
-rw-r--r--arch/arm/mach-s3c24xx/clock-s3c2443.c6
-rw-r--r--arch/arm/mach-s3c24xx/common-s3c2443.c15
-rw-r--r--arch/arm/mach-s3c24xx/dma-s3c2443.c16
-rw-r--r--arch/arm/mach-s3c24xx/include/mach/dma.h4
-rw-r--r--arch/arm/mach-s3c24xx/include/mach/map.h5
-rw-r--r--arch/arm/mach-s3c24xx/setup-spi.c39
9 files changed, 83 insertions, 9 deletions
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index b34287ab5af..e24961109b7 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -518,6 +518,11 @@ config S3C2443_DMA
help
Internal config node for S3C2443 DMA support
+config S3C2443_SETUP_SPI
+ bool
+ help
+ Common setup code for SPI GPIO configurations
+
endif # CPU_S3C2443 || CPU_S3C2416
if CPU_S3C2443
diff --git a/arch/arm/mach-s3c24xx/Makefile b/arch/arm/mach-s3c24xx/Makefile
index 270a0b6f4f2..0ab6ab15da4 100644
--- a/arch/arm/mach-s3c24xx/Makefile
+++ b/arch/arm/mach-s3c24xx/Makefile
@@ -97,5 +97,6 @@ obj-$(CONFIG_MACH_OSIRIS_DVS) += mach-osiris-dvs.o
# device setup
obj-$(CONFIG_S3C2416_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
+obj-$(CONFIG_S3C2443_SETUP_SPI) += setup-spi.o
obj-$(CONFIG_ARCH_S3C24XX) += setup-i2c.o
obj-$(CONFIG_S3C24XX_SETUP_TS) += setup-ts.o
diff --git a/arch/arm/mach-s3c24xx/clock-s3c2416.c b/arch/arm/mach-s3c24xx/clock-s3c2416.c
index dbc9ab4aaca..8702ecfaab3 100644
--- a/arch/arm/mach-s3c24xx/clock-s3c2416.c
+++ b/arch/arm/mach-s3c24xx/clock-s3c2416.c
@@ -144,6 +144,7 @@ static struct clk_lookup s3c2416_clk_lookup[] = {
CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &hsmmc0_clk),
CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &hsmmc_mux0.clk),
CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &hsmmc_mux1.clk),
+ CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk2", &hsspi_mux.clk),
};
void __init s3c2416_init_clocks(int xtal)
diff --git a/arch/arm/mach-s3c24xx/clock-s3c2443.c b/arch/arm/mach-s3c24xx/clock-s3c2443.c
index efb3ac35956..a4c5a520d99 100644
--- a/arch/arm/mach-s3c24xx/clock-s3c2443.c
+++ b/arch/arm/mach-s3c24xx/clock-s3c2443.c
@@ -179,6 +179,11 @@ static struct clk *clks[] __initdata = {
&clk_hsmmc,
};
+static struct clk_lookup s3c2443_clk_lookup[] = {
+ CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_hsmmc),
+ CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk2", &clk_hsspi.clk),
+};
+
void __init s3c2443_init_clocks(int xtal)
{
unsigned long epllcon = __raw_readl(S3C2443_EPLLCON);
@@ -210,6 +215,7 @@ void __init s3c2443_init_clocks(int xtal)
s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
+ clkdev_add_table(s3c2443_clk_lookup, ARRAY_SIZE(s3c2443_clk_lookup));
s3c_pwmclk_init();
}
diff --git a/arch/arm/mach-s3c24xx/common-s3c2443.c b/arch/arm/mach-s3c24xx/common-s3c2443.c
index 460431589f3..aeeb2be283f 100644
--- a/arch/arm/mach-s3c24xx/common-s3c2443.c
+++ b/arch/arm/mach-s3c24xx/common-s3c2443.c
@@ -424,11 +424,6 @@ static struct clk init_clocks_off[] = {
.enable = s3c2443_clkcon_enable_p,
.ctrlbit = S3C2443_PCLKCON_IIS,
}, {
- .name = "hsspi",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_HSSPI,
- }, {
.name = "adc",
.parent = &clk_p,
.enable = s3c2443_clkcon_enable_p,
@@ -562,6 +557,14 @@ static struct clk hsmmc1_clk = {
.ctrlbit = S3C2443_HCLKCON_HSMMC,
};
+static struct clk hsspi_clk = {
+ .name = "spi",
+ .devname = "s3c64xx-spi.0",
+ .parent = &clk_p,
+ .enable = s3c2443_clkcon_enable_p,
+ .ctrlbit = S3C2443_PCLKCON_HSSPI,
+};
+
/* EPLLCON compatible enough to get on/off information */
void __init_or_cpufreq s3c2443_common_setup_clocks(pll_fn get_mpll)
@@ -612,6 +615,7 @@ static struct clk *clks[] __initdata = {
&clk_usb_bus,
&clk_armdiv,
&hsmmc1_clk,
+ &hsspi_clk,
};
static struct clksrc_clk *clksrcs[] __initdata = {
@@ -629,6 +633,7 @@ static struct clk_lookup s3c2443_clk_lookup[] = {
CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_esys_uart.clk),
CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &hsmmc1_clk),
+ CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk0", &hsspi_clk),
};
void __init s3c2443_common_init_clocks(int xtal, pll_fn get_mpll,
diff --git a/arch/arm/mach-s3c24xx/dma-s3c2443.c b/arch/arm/mach-s3c24xx/dma-s3c2443.c
index e227c472a40..2d94228d286 100644
--- a/arch/arm/mach-s3c24xx/dma-s3c2443.c
+++ b/arch/arm/mach-s3c24xx/dma-s3c2443.c
@@ -55,12 +55,20 @@ static struct s3c24xx_dma_map __initdata s3c2443_dma_mappings[] = {
.name = "sdi",
.channels = MAP(S3C2443_DMAREQSEL_SDI),
},
- [DMACH_SPI0] = {
- .name = "spi0",
+ [DMACH_SPI0_RX] = {
+ .name = "spi0-rx",
+ .channels = MAP(S3C2443_DMAREQSEL_SPI0RX),
+ },
+ [DMACH_SPI0_TX] = {
+ .name = "spi0-tx",
.channels = MAP(S3C2443_DMAREQSEL_SPI0TX),
},
- [DMACH_SPI1] = { /* only on S3C2443/S3C2450 */
- .name = "spi1",
+ [DMACH_SPI1_RX] = { /* only on S3C2443/S3C2450 */
+ .name = "spi1-rx",
+ .channels = MAP(S3C2443_DMAREQSEL_SPI1RX),
+ },
+ [DMACH_SPI1_TX] = { /* only on S3C2443/S3C2450 */
+ .name = "spi1-tx",
.channels = MAP(S3C2443_DMAREQSEL_SPI1TX),
},
[DMACH_UART0] = {
diff --git a/arch/arm/mach-s3c24xx/include/mach/dma.h b/arch/arm/mach-s3c24xx/include/mach/dma.h
index acbdfecd418..454831b6603 100644
--- a/arch/arm/mach-s3c24xx/include/mach/dma.h
+++ b/arch/arm/mach-s3c24xx/include/mach/dma.h
@@ -47,6 +47,10 @@ enum dma_ch {
DMACH_UART2_SRC2,
DMACH_UART3, /* s3c2443 has extra uart */
DMACH_UART3_SRC2,
+ DMACH_SPI0_TX, /* s3c2443/2416/2450 hsspi0 */
+ DMACH_SPI0_RX, /* s3c2443/2416/2450 hsspi0 */
+ DMACH_SPI1_TX, /* s3c2443/2450 hsspi1 */
+ DMACH_SPI1_RX, /* s3c2443/2450 hsspi1 */
DMACH_MAX, /* the end entry */
};
diff --git a/arch/arm/mach-s3c24xx/include/mach/map.h b/arch/arm/mach-s3c24xx/include/mach/map.h
index 78ae807f128..8ba381f2dbe 100644
--- a/arch/arm/mach-s3c24xx/include/mach/map.h
+++ b/arch/arm/mach-s3c24xx/include/mach/map.h
@@ -98,6 +98,8 @@
/* SPI */
#define S3C2410_PA_SPI (0x59000000)
+#define S3C2443_PA_SPI0 (0x52000000)
+#define S3C2443_PA_SPI1 S3C2410_PA_SPI
/* SDI */
#define S3C2410_PA_SDI (0x5A000000)
@@ -162,4 +164,7 @@
#define S3C_PA_WDT S3C2410_PA_WATCHDOG
#define S3C_PA_NAND S3C24XX_PA_NAND
+#define S3C_PA_SPI0 S3C2443_PA_SPI0
+#define S3C_PA_SPI1 S3C2443_PA_SPI1
+
#endif /* __ASM_ARCH_MAP_H */
diff --git a/arch/arm/mach-s3c24xx/setup-spi.c b/arch/arm/mach-s3c24xx/setup-spi.c
new file mode 100644
index 00000000000..5712c85f39b
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/setup-spi.c
@@ -0,0 +1,39 @@
+/*
+ * HS-SPI device setup for S3C2443/S3C2416
+ *
+ * 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>
+
+#include <mach/hardware.h>
+#include <mach/regs-gpio.h>
+
+#ifdef CONFIG_S3C64XX_DEV_SPI0
+struct s3c64xx_spi_info s3c64xx_spi0_pdata __initdata = {
+ .fifo_lvl_mask = 0x7f,
+ .rx_lvl_offset = 13,
+ .tx_st_done = 21,
+ .high_speed = 1,
+};
+
+int s3c64xx_spi0_cfg_gpio(struct platform_device *pdev)
+{
+ /* enable hsspi bit in misccr */
+ s3c2410_modify_misccr(S3C2416_MISCCR_HSSPI_EN2, 1);
+
+ s3c_gpio_cfgall_range(S3C2410_GPE(11), 3,
+ S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+
+ return 0;
+}
+#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-29 11:46:45 +0000