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-rw-r--r--arch/arm/mach-omap2/devices.c187
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_2420_data.c156
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_2430_data.c219
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_3xxx_data.c280
-rw-r--r--arch/arm/plat-omap/include/plat/mcspi.h11
-rw-r--r--drivers/spi/omap2_mcspi.c222
6 files changed, 774 insertions, 301 deletions
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index e0f0ef9..71f099b 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -15,6 +15,7 @@
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/err.h>
+#include <linux/slab.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
@@ -279,163 +280,55 @@ static inline void omap_init_audio(void) {}
#include <plat/mcspi.h>
-#define OMAP2_MCSPI1_BASE 0x48098000
-#define OMAP2_MCSPI2_BASE 0x4809a000
-#define OMAP2_MCSPI3_BASE 0x480b8000
-#define OMAP2_MCSPI4_BASE 0x480ba000
-
-#define OMAP4_MCSPI1_BASE 0x48098100
-#define OMAP4_MCSPI2_BASE 0x4809a100
-#define OMAP4_MCSPI3_BASE 0x480b8100
-#define OMAP4_MCSPI4_BASE 0x480ba100
-
-static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
- .num_cs = 4,
-};
-
-static struct resource omap2_mcspi1_resources[] = {
- {
- .start = OMAP2_MCSPI1_BASE,
- .end = OMAP2_MCSPI1_BASE + 0xff,
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct platform_device omap2_mcspi1 = {
- .name = "omap2_mcspi",
- .id = 1,
- .num_resources = ARRAY_SIZE(omap2_mcspi1_resources),
- .resource = omap2_mcspi1_resources,
- .dev = {
- .platform_data = &omap2_mcspi1_config,
- },
-};
-
-static struct omap2_mcspi_platform_config omap2_mcspi2_config = {
- .num_cs = 2,
-};
-
-static struct resource omap2_mcspi2_resources[] = {
- {
- .start = OMAP2_MCSPI2_BASE,
- .end = OMAP2_MCSPI2_BASE + 0xff,
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct platform_device omap2_mcspi2 = {
- .name = "omap2_mcspi",
- .id = 2,
- .num_resources = ARRAY_SIZE(omap2_mcspi2_resources),
- .resource = omap2_mcspi2_resources,
- .dev = {
- .platform_data = &omap2_mcspi2_config,
- },
-};
-
-#if defined(CONFIG_SOC_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
- defined(CONFIG_ARCH_OMAP4)
-static struct omap2_mcspi_platform_config omap2_mcspi3_config = {
- .num_cs = 2,
-};
-
-static struct resource omap2_mcspi3_resources[] = {
- {
- .start = OMAP2_MCSPI3_BASE,
- .end = OMAP2_MCSPI3_BASE + 0xff,
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct platform_device omap2_mcspi3 = {
- .name = "omap2_mcspi",
- .id = 3,
- .num_resources = ARRAY_SIZE(omap2_mcspi3_resources),
- .resource = omap2_mcspi3_resources,
- .dev = {
- .platform_data = &omap2_mcspi3_config,
- },
-};
-#endif
-
-#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
-static struct omap2_mcspi_platform_config omap2_mcspi4_config = {
- .num_cs = 1,
-};
-
-static struct resource omap2_mcspi4_resources[] = {
- {
- .start = OMAP2_MCSPI4_BASE,
- .end = OMAP2_MCSPI4_BASE + 0xff,
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct platform_device omap2_mcspi4 = {
- .name = "omap2_mcspi",
- .id = 4,
- .num_resources = ARRAY_SIZE(omap2_mcspi4_resources),
- .resource = omap2_mcspi4_resources,
- .dev = {
- .platform_data = &omap2_mcspi4_config,
+struct omap_device_pm_latency omap_mcspi_latency[] = {
+ [0] = {
+ .deactivate_func = omap_device_idle_hwmods,
+ .activate_func = omap_device_enable_hwmods,
+ .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
},
};
-#endif
-#ifdef CONFIG_ARCH_OMAP4
-static inline void omap4_mcspi_fixup(void)
+static int omap_mcspi_init(struct omap_hwmod *oh, void *unused)
{
- omap2_mcspi1_resources[0].start = OMAP4_MCSPI1_BASE;
- omap2_mcspi1_resources[0].end = OMAP4_MCSPI1_BASE + 0xff;
- omap2_mcspi2_resources[0].start = OMAP4_MCSPI2_BASE;
- omap2_mcspi2_resources[0].end = OMAP4_MCSPI2_BASE + 0xff;
- omap2_mcspi3_resources[0].start = OMAP4_MCSPI3_BASE;
- omap2_mcspi3_resources[0].end = OMAP4_MCSPI3_BASE + 0xff;
- omap2_mcspi4_resources[0].start = OMAP4_MCSPI4_BASE;
- omap2_mcspi4_resources[0].end = OMAP4_MCSPI4_BASE + 0xff;
-}
-#else
-static inline void omap4_mcspi_fixup(void)
-{
-}
-#endif
+ struct omap_device *od;
+ char *name = "omap2_mcspi";
+ struct omap2_mcspi_platform_config *pdata;
+ static int spi_num;
+ struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;
+
+ pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ pr_err("Memory allocation for McSPI device failed\n");
+ return -ENOMEM;
+ }
-#if defined(CONFIG_SOC_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
- defined(CONFIG_ARCH_OMAP4)
-static inline void omap2_mcspi3_init(void)
-{
- platform_device_register(&omap2_mcspi3);
-}
-#else
-static inline void omap2_mcspi3_init(void)
-{
-}
-#endif
+ pdata->num_cs = mcspi_attrib->num_chipselect;
+ switch (oh->class->rev) {
+ case OMAP2_MCSPI_REV:
+ case OMAP3_MCSPI_REV:
+ pdata->regs_offset = 0;
+ break;
+ case OMAP4_MCSPI_REV:
+ pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
+ break;
+ default:
+ pr_err("Invalid McSPI Revision value\n");
+ return -EINVAL;
+ }
-#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
-static inline void omap2_mcspi4_init(void)
-{
- platform_device_register(&omap2_mcspi4);
-}
-#else
-static inline void omap2_mcspi4_init(void)
-{
+ spi_num++;
+ od = omap_device_build(name, spi_num, oh, pdata,
+ sizeof(*pdata), omap_mcspi_latency,
+ ARRAY_SIZE(omap_mcspi_latency), 0);
+ WARN(IS_ERR(od), "Cant build omap_device for %s:%s\n",
+ name, oh->name);
+ kfree(pdata);
+ return 0;
}
-#endif
static void omap_init_mcspi(void)
{
- if (cpu_is_omap44xx())
- omap4_mcspi_fixup();
-
- platform_device_register(&omap2_mcspi1);
- platform_device_register(&omap2_mcspi2);
-
- if (cpu_is_omap2430() || cpu_is_omap343x() || cpu_is_omap44xx())
- omap2_mcspi3_init();
-
- if (cpu_is_omap343x() || cpu_is_omap44xx())
- omap2_mcspi4_init();
+ omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
}
#else
diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
index b85c630..7fffd34 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
@@ -18,6 +18,7 @@
#include <plat/serial.h>
#include <plat/i2c.h>
#include <plat/gpio.h>
+#include <plat/mcspi.h>
#include "omap_hwmod_common_data.h"
@@ -44,6 +45,8 @@ static struct omap_hwmod omap2420_gpio2_hwmod;
static struct omap_hwmod omap2420_gpio3_hwmod;
static struct omap_hwmod omap2420_gpio4_hwmod;
static struct omap_hwmod omap2420_dma_system_hwmod;
+static struct omap_hwmod omap2420_mcspi1_hwmod;
+static struct omap_hwmod omap2420_mcspi2_hwmod;
/* L3 -> L4_CORE interface */
static struct omap_hwmod_ocp_if omap2420_l3_main__l4_core = {
@@ -88,6 +91,42 @@ static struct omap_hwmod omap2420_uart3_hwmod;
static struct omap_hwmod omap2420_i2c1_hwmod;
static struct omap_hwmod omap2420_i2c2_hwmod;
+/* l4 core -> mcspi1 interface */
+static struct omap_hwmod_addr_space omap2420_mcspi1_addr_space[] = {
+ {
+ .pa_start = 0x48098000,
+ .pa_end = 0x480980ff,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap2420_l4_core__mcspi1 = {
+ .master = &omap2420_l4_core_hwmod,
+ .slave = &omap2420_mcspi1_hwmod,
+ .clk = "mcspi1_ick",
+ .addr = omap2420_mcspi1_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap2420_mcspi1_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4 core -> mcspi2 interface */
+static struct omap_hwmod_addr_space omap2420_mcspi2_addr_space[] = {
+ {
+ .pa_start = 0x4809a000,
+ .pa_end = 0x4809a0ff,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap2420_l4_core__mcspi2 = {
+ .master = &omap2420_l4_core_hwmod,
+ .slave = &omap2420_mcspi2_hwmod,
+ .clk = "mcspi2_ick",
+ .addr = omap2420_mcspi2_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap2420_mcspi2_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
/* L4_CORE -> L4_WKUP interface */
static struct omap_hwmod_ocp_if omap2420_l4_core__l4_wkup = {
.master = &omap2420_l4_core_hwmod,
@@ -864,6 +903,119 @@ static struct omap_hwmod omap2420_dma_system_hwmod = {
.flags = HWMOD_NO_IDLEST,
};
+/*
+ * 'mcspi' class
+ * multichannel serial port interface (mcspi) / master/slave synchronous serial
+ * bus
+ */
+
+static struct omap_hwmod_class_sysconfig omap2420_mcspi_sysc = {
+ .rev_offs = 0x0000,
+ .sysc_offs = 0x0010,
+ .syss_offs = 0x0014,
+ .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
+ SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET |
+ SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS),
+ .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+ .sysc_fields = &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap2420_mcspi_class = {
+ .name = "mcspi",
+ .sysc = &omap2420_mcspi_sysc,
+ .rev = OMAP2_MCSPI_REV,
+};
+
+/* mcspi1 */
+static struct omap_hwmod_irq_info omap2420_mcspi1_mpu_irqs[] = {
+ { .irq = 65 },
+};
+
+static struct omap_hwmod_dma_info omap2420_mcspi1_sdma_reqs[] = {
+ { .name = "tx0", .dma_req = 35 }, /* DMA_SPI1_TX0 */
+ { .name = "rx0", .dma_req = 36 }, /* DMA_SPI1_RX0 */
+ { .name = "tx1", .dma_req = 37 }, /* DMA_SPI1_TX1 */
+ { .name = "rx1", .dma_req = 38 }, /* DMA_SPI1_RX1 */
+ { .name = "tx2", .dma_req = 39 }, /* DMA_SPI1_TX2 */
+ { .name = "rx2", .dma_req = 40 }, /* DMA_SPI1_RX2 */
+ { .name = "tx3", .dma_req = 41 }, /* DMA_SPI1_TX3 */
+ { .name = "rx3", .dma_req = 42 }, /* DMA_SPI1_RX3 */
+};
+
+static struct omap_hwmod_ocp_if *omap2420_mcspi1_slaves[] = {
+ &omap2420_l4_core__mcspi1,
+};
+
+static struct omap2_mcspi_dev_attr omap_mcspi1_dev_attr = {
+ .num_chipselect = 4,
+};
+
+static struct omap_hwmod omap2420_mcspi1_hwmod = {
+ .name = "mcspi1_hwmod",
+ .mpu_irqs = omap2420_mcspi1_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap2420_mcspi1_mpu_irqs),
+ .sdma_reqs = omap2420_mcspi1_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap2420_mcspi1_sdma_reqs),
+ .main_clk = "mcspi1_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP24XX_EN_MCSPI1_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP24XX_ST_MCSPI1_SHIFT,
+ },
+ },
+ .slaves = omap2420_mcspi1_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap2420_mcspi1_slaves),
+ .class = &omap2420_mcspi_class,
+ .dev_attr = &omap_mcspi1_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
+};
+
+/* mcspi2 */
+static struct omap_hwmod_irq_info omap2420_mcspi2_mpu_irqs[] = {
+ { .irq = 66 },
+};
+
+static struct omap_hwmod_dma_info omap2420_mcspi2_sdma_reqs[] = {
+ { .name = "tx0", .dma_req = 43 }, /* DMA_SPI2_TX0 */
+ { .name = "rx0", .dma_req = 44 }, /* DMA_SPI2_RX0 */
+ { .name = "tx1", .dma_req = 45 }, /* DMA_SPI2_TX1 */
+ { .name = "rx1", .dma_req = 46 }, /* DMA_SPI2_RX1 */
+};
+
+static struct omap_hwmod_ocp_if *omap2420_mcspi2_slaves[] = {
+ &omap2420_l4_core__mcspi2,
+};
+
+static struct omap2_mcspi_dev_attr omap_mcspi2_dev_attr = {
+ .num_chipselect = 2,
+};
+
+static struct omap_hwmod omap2420_mcspi2_hwmod = {
+ .name = "mcspi2_hwmod",
+ .mpu_irqs = omap2420_mcspi2_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap2420_mcspi2_mpu_irqs),
+ .sdma_reqs = omap2420_mcspi2_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap2420_mcspi2_sdma_reqs),
+ .main_clk = "mcspi2_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP24XX_EN_MCSPI2_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP24XX_ST_MCSPI2_SHIFT,
+ },
+ },
+ .slaves = omap2420_mcspi2_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap2420_mcspi2_slaves),
+ .class = &omap2420_mcspi_class,
+ .dev_attr = &omap_mcspi2_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
+};
+
static __initdata struct omap_hwmod *omap2420_hwmods[] = {
&omap2420_l3_main_hwmod,
&omap2420_l4_core_hwmod,
@@ -885,6 +1037,10 @@ static __initdata struct omap_hwmod *omap2420_hwmods[] = {
/* dma_system class*/
&omap2420_dma_system_hwmod,
+
+ /* mcspi class */
+ &omap2420_mcspi1_hwmod,
+ &omap2420_mcspi2_hwmod,
NULL,
};
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
index 8ecfbcd..60fe4aa 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
@@ -18,6 +18,7 @@
#include <plat/serial.h>
#include <plat/i2c.h>
#include <plat/gpio.h>
+#include <plat/mcspi.h>
#include "omap_hwmod_common_data.h"
@@ -45,6 +46,9 @@ static struct omap_hwmod omap2430_gpio3_hwmod;
static struct omap_hwmod omap2430_gpio4_hwmod;
static struct omap_hwmod omap2430_gpio5_hwmod;
static struct omap_hwmod omap2430_dma_system_hwmod;
+static struct omap_hwmod omap2430_mcspi1_hwmod;
+static struct omap_hwmod omap2430_mcspi2_hwmod;
+static struct omap_hwmod omap2430_mcspi3_hwmod;
/* L3 -> L4_CORE interface */
static struct omap_hwmod_ocp_if omap2430_l3_main__l4_core = {
@@ -223,6 +227,60 @@ static struct omap_hwmod_ocp_if *omap2430_l4_wkup_slaves[] = {
static struct omap_hwmod_ocp_if *omap2430_l4_wkup_masters[] = {
};
+/* l4 core -> mcspi1 interface */
+static struct omap_hwmod_addr_space omap2430_mcspi1_addr_space[] = {
+ {
+ .pa_start = 0x48098000,
+ .pa_end = 0x480980ff,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap2430_l4_core__mcspi1 = {
+ .master = &omap2430_l4_core_hwmod,
+ .slave = &omap2430_mcspi1_hwmod,
+ .clk = "mcspi1_ick",
+ .addr = omap2430_mcspi1_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap2430_mcspi1_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4 core -> mcspi2 interface */
+static struct omap_hwmod_addr_space omap2430_mcspi2_addr_space[] = {
+ {
+ .pa_start = 0x4809a000,
+ .pa_end = 0x4809a0ff,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap2430_l4_core__mcspi2 = {
+ .master = &omap2430_l4_core_hwmod,
+ .slave = &omap2430_mcspi2_hwmod,
+ .clk = "mcspi2_ick",
+ .addr = omap2430_mcspi2_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap2430_mcspi2_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4 core -> mcspi3 interface */
+static struct omap_hwmod_addr_space omap2430_mcspi3_addr_space[] = {
+ {
+ .pa_start = 0x480b8000,
+ .pa_end = 0x480b80ff,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap2430_l4_core__mcspi3 = {
+ .master = &omap2430_l4_core_hwmod,
+ .slave = &omap2430_mcspi3_hwmod,
+ .clk = "mcspi3_ick",
+ .addr = omap2430_mcspi3_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap2430_mcspi3_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
/* L4 WKUP */
static struct omap_hwmod omap2430_l4_wkup_hwmod = {
.name = "l4_wkup",
@@ -919,6 +977,162 @@ static struct omap_hwmod omap2430_dma_system_hwmod = {
.flags = HWMOD_NO_IDLEST,
};
+/*
+ * 'mcspi' class
+ * multichannel serial port interface (mcspi) / master/slave synchronous serial
+ * bus
+ */
+
+static struct omap_hwmod_class_sysconfig omap2430_mcspi_sysc = {
+ .rev_offs = 0x0000,
+ .sysc_offs = 0x0010,
+ .syss_offs = 0x0014,
+ .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
+ SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET |
+ SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS),
+ .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+ .sysc_fields = &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap2430_mcspi_class = {
+ .name = "mcspi",
+ .sysc = &omap2430_mcspi_sysc,
+ .rev = OMAP2_MCSPI_REV,
+};
+
+/* mcspi1 */
+static struct omap_hwmod_irq_info omap2430_mcspi1_mpu_irqs[] = {
+ { .irq = 65 },
+};
+
+static struct omap_hwmod_dma_info omap2430_mcspi1_sdma_reqs[] = {
+ { .name = "tx0", .dma_req = 35 }, /* DMA_SPI1_TX0 */
+ { .name = "rx0", .dma_req = 36 }, /* DMA_SPI1_RX0 */
+ { .name = "tx1", .dma_req = 37 }, /* DMA_SPI1_TX1 */
+ { .name = "rx1", .dma_req = 38 }, /* DMA_SPI1_RX1 */
+ { .name = "tx2", .dma_req = 39 }, /* DMA_SPI1_TX2 */
+ { .name = "rx2", .dma_req = 40 }, /* DMA_SPI1_RX2 */
+ { .name = "tx3", .dma_req = 41 }, /* DMA_SPI1_TX3 */
+ { .name = "rx3", .dma_req = 42 }, /* DMA_SPI1_RX3 */
+};
+
+static struct omap_hwmod_ocp_if *omap2430_mcspi1_slaves[] = {
+ &omap2430_l4_core__mcspi1,
+};
+
+static struct omap2_mcspi_dev_attr omap_mcspi1_dev_attr = {
+ .num_chipselect = 4,
+};
+
+static struct omap_hwmod omap2430_mcspi1_hwmod = {
+ .name = "mcspi1_hwmod",
+ .mpu_irqs = omap2430_mcspi1_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap2430_mcspi1_mpu_irqs),
+ .sdma_reqs = omap2430_mcspi1_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap2430_mcspi1_sdma_reqs),
+ .main_clk = "mcspi1_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP24XX_EN_MCSPI1_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP24XX_ST_MCSPI1_SHIFT,
+ },
+ },
+ .slaves = omap2430_mcspi1_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap2430_mcspi1_slaves),
+ .class = &omap2430_mcspi_class,
+ .dev_attr = &omap_mcspi1_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
+};
+
+/* mcspi2 */
+static struct omap_hwmod_irq_info omap2430_mcspi2_mpu_irqs[] = {
+ { .irq = 66 },
+};
+
+static struct omap_hwmod_dma_info omap2430_mcspi2_sdma_reqs[] = {
+ { .name = "tx0", .dma_req = 43 }, /* DMA_SPI2_TX0 */
+ { .name = "rx0", .dma_req = 44 }, /* DMA_SPI2_RX0 */
+ { .name = "tx1", .dma_req = 45 }, /* DMA_SPI2_TX1 */
+ { .name = "rx1", .dma_req = 46 }, /* DMA_SPI2_RX1 */
+};
+
+static struct omap_hwmod_ocp_if *omap2430_mcspi2_slaves[] = {
+ &omap2430_l4_core__mcspi2,
+};
+
+static struct omap2_mcspi_dev_attr omap_mcspi2_dev_attr = {
+ .num_chipselect = 2,
+};
+
+static struct omap_hwmod omap2430_mcspi2_hwmod = {
+ .name = "mcspi2_hwmod",
+ .mpu_irqs = omap2430_mcspi2_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap2430_mcspi2_mpu_irqs),
+ .sdma_reqs = omap2430_mcspi2_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap2430_mcspi2_sdma_reqs),
+ .main_clk = "mcspi2_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP24XX_EN_MCSPI2_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP24XX_ST_MCSPI2_SHIFT,
+ },
+ },
+ .slaves = omap2430_mcspi2_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap2430_mcspi2_slaves),
+ .class = &omap2430_mcspi_class,
+ .dev_attr = &omap_mcspi2_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
+};
+
+/* mcspi3 */
+static struct omap_hwmod_irq_info omap2430_mcspi3_mpu_irqs[] = {
+ { .irq = 91 },
+};
+
+static struct omap_hwmod_dma_info omap2430_mcspi3_sdma_reqs[] = {
+ { .name = "tx0", .dma_req = 15 }, /* DMA_SPI3_TX0 */
+ { .name = "rx0", .dma_req = 16 }, /* DMA_SPI3_RX0 */
+ { .name = "tx1", .dma_req = 23 }, /* DMA_SPI3_TX1 */
+ { .name = "rx1", .dma_req = 24 }, /* DMA_SPI3_RX1 */
+};
+
+static struct omap_hwmod_ocp_if *omap2430_mcspi3_slaves[] = {
+ &omap2430_l4_core__mcspi3,
+};
+
+static struct omap2_mcspi_dev_attr omap_mcspi3_dev_attr = {
+ .num_chipselect = 2,
+};
+
+static struct omap_hwmod omap2430_mcspi3_hwmod = {
+ .name = "mcspi3_hwmod",
+ .mpu_irqs = omap2430_mcspi3_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap2430_mcspi3_mpu_irqs),
+ .sdma_reqs = omap2430_mcspi3_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap2430_mcspi3_sdma_reqs),
+ .main_clk = "mcspi3_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 2,
+ .module_bit = OMAP2430_EN_MCSPI3_SHIFT,
+ .idlest_reg_id = 2,
+ .idlest_idle_bit = OMAP2430_ST_MCSPI3_SHIFT,
+ },
+ },
+ .slaves = omap2430_mcspi3_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap2430_mcspi3_slaves),
+ .class = &omap2430_mcspi_class,
+ .dev_attr = &omap_mcspi3_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
+};
+
static __initdata struct omap_hwmod *omap2430_hwmods[] = {
&omap2430_l3_main_hwmod,
&omap2430_l4_core_hwmod,
@@ -941,6 +1155,11 @@ static __initdata struct omap_hwmod *omap2430_hwmods[] = {
/* dma_system class*/
&omap2430_dma_system_hwmod,
+
+ /* mcspi class */
+ &omap2430_mcspi1_hwmod,
+ &omap2430_mcspi2_hwmod,
+ &omap2430_mcspi3_hwmod,
NULL,
};
diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index 8d81813..800eda4 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -22,6 +22,7 @@
#include <plat/i2c.h>
#include <plat/gpio.h>
#include <plat/smartreflex.h>
+#include <plat/mcspi.h>
#include "omap_hwmod_common_data.h"
@@ -55,6 +56,10 @@ static struct omap_hwmod omap3xxx_gpio5_hwmod;
static struct omap_hwmod omap3xxx_gpio6_hwmod;
static struct omap_hwmod omap34xx_sr1_hwmod;
static struct omap_hwmod omap34xx_sr2_hwmod;
+static struct omap_hwmod omap34xx_mcspi1;
+static struct omap_hwmod omap34xx_mcspi2;
+static struct omap_hwmod omap34xx_mcspi3;
+static struct omap_hwmod omap34xx_mcspi4;
static struct omap_hwmod omap3xxx_dma_system_hwmod;
@@ -1356,6 +1361,275 @@ static struct omap_hwmod omap36xx_sr2_hwmod = {
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3630ES1),
};
+/* l4 core -> mcspi1 interface */
+static struct omap_hwmod_addr_space omap34xx_mcspi1_addr_space[] = {
+ {
+ .pa_start = 0x48098000,
+ .pa_end = 0x480980ff,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap34xx_l4_core__mcspi1 = {
+ .master = &omap3xxx_l4_core_hwmod,
+ .slave = &omap34xx_mcspi1,
+ .clk = "mcspi1_ick",
+ .addr = omap34xx_mcspi1_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap34xx_mcspi1_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4 core -> mcspi2 interface */
+static struct omap_hwmod_addr_space omap34xx_mcspi2_addr_space[] = {
+ {
+ .pa_start = 0x4809a000,
+ .pa_end = 0x4809a0ff,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap34xx_l4_core__mcspi2 = {
+ .master = &omap3xxx_l4_core_hwmod,
+ .slave = &omap34xx_mcspi2,
+ .clk = "mcspi2_ick",
+ .addr = omap34xx_mcspi2_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap34xx_mcspi2_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4 core -> mcspi3 interface */
+static struct omap_hwmod_addr_space omap34xx_mcspi3_addr_space[] = {
+ {
+ .pa_start = 0x480b8000,
+ .pa_end = 0x480b80ff,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap34xx_l4_core__mcspi3 = {
+ .master = &omap3xxx_l4_core_hwmod,
+ .slave = &omap34xx_mcspi3,
+ .clk = "mcspi3_ick",
+ .addr = omap34xx_mcspi3_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap34xx_mcspi3_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4 core -> mcspi4 interface */
+static struct omap_hwmod_addr_space omap34xx_mcspi4_addr_space[] = {
+ {
+ .pa_start = 0x480ba000,
+ .pa_end = 0x480ba0ff,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap34xx_l4_core__mcspi4 = {
+ .master = &omap3xxx_l4_core_hwmod,
+ .slave = &omap34xx_mcspi4,
+ .clk = "mcspi4_ick",
+ .addr = omap34xx_mcspi4_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap34xx_mcspi4_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/*
+ * 'mcspi' class
+ * multichannel serial port interface (mcspi) / master/slave synchronous serial
+ * bus
+ */
+
+static struct omap_hwmod_class_sysconfig omap34xx_mcspi_sysc = {
+ .rev_offs = 0x0000,
+ .sysc_offs = 0x0010,
+ .syss_offs = 0x0014,
+ .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
+ SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET |
+ SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS),
+ .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+ .sysc_fields = &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap34xx_mcspi_class = {
+ .name = "mcspi",
+ .sysc = &omap34xx_mcspi_sysc,
+ .rev = OMAP3_MCSPI_REV,
+};
+
+/* mcspi1 */
+static struct omap_hwmod_irq_info omap34xx_mcspi1_mpu_irqs[] = {
+ { .name = "irq", .irq = 65 },
+};
+
+static struct omap_hwmod_dma_info omap34xx_mcspi1_sdma_reqs[] = {
+ { .name = "tx0", .dma_req = 35 },
+ { .name = "rx0", .dma_req = 36 },
+ { .name = "tx1", .dma_req = 37 },
+ { .name = "rx1", .dma_req = 38 },
+ { .name = "tx2", .dma_req = 39 },
+ { .name = "rx2", .dma_req = 40 },
+ { .name = "tx3", .dma_req = 41 },
+ { .name = "rx3", .dma_req = 42 },
+};
+
+static struct omap_hwmod_ocp_if *omap34xx_mcspi1_slaves[] = {
+ &omap34xx_l4_core__mcspi1,
+};
+
+static struct omap2_mcspi_dev_attr omap_mcspi1_dev_attr = {
+ .num_chipselect = 4,
+};
+
+static struct omap_hwmod omap34xx_mcspi1 = {
+ .name = "mcspi1",
+ .mpu_irqs = omap34xx_mcspi1_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap34xx_mcspi1_mpu_irqs),
+ .sdma_reqs = omap34xx_mcspi1_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap34xx_mcspi1_sdma_reqs),
+ .main_clk = "mcspi1_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP3430_EN_MCSPI1_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP3430_ST_MCSPI1_SHIFT,
+ },
+ },
+ .slaves = omap34xx_mcspi1_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap34xx_mcspi1_slaves),
+ .class = &omap34xx_mcspi_class,
+ .dev_attr = &omap_mcspi1_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
+};
+
+/* mcspi2 */
+static struct omap_hwmod_irq_info omap34xx_mcspi2_mpu_irqs[] = {
+ { .name = "irq", .irq = 66 },
+};
+
+static struct omap_hwmod_dma_info omap34xx_mcspi2_sdma_reqs[] = {
+ { .name = "tx0", .dma_req = 43 },
+ { .name = "rx0", .dma_req = 44 },
+ { .name = "tx1", .dma_req = 45 },
+ { .name = "rx1", .dma_req = 46 },
+};
+
+static struct omap_hwmod_ocp_if *omap34xx_mcspi2_slaves[] = {
+ &omap34xx_l4_core__mcspi2,
+};
+
+static struct omap2_mcspi_dev_attr omap_mcspi2_dev_attr = {
+ .num_chipselect = 2,
+};
+
+static struct omap_hwmod omap34xx_mcspi2 = {
+ .name = "mcspi2",
+ .mpu_irqs = omap34xx_mcspi2_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap34xx_mcspi2_mpu_irqs),
+ .sdma_reqs = omap34xx_mcspi2_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap34xx_mcspi2_sdma_reqs),
+ .main_clk = "mcspi2_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP3430_EN_MCSPI2_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP3430_ST_MCSPI2_SHIFT,
+ },
+ },
+ .slaves = omap34xx_mcspi2_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap34xx_mcspi2_slaves),
+ .class = &omap34xx_mcspi_class,
+ .dev_attr = &omap_mcspi2_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
+};
+
+/* mcspi3 */
+static struct omap_hwmod_irq_info omap34xx_mcspi3_mpu_irqs[] = {
+ { .name = "irq", .irq = 91 }, /* 91 */
+};
+
+static struct omap_hwmod_dma_info omap34xx_mcspi3_sdma_reqs[] = {
+ { .name = "tx0", .dma_req = 15 },
+ { .name = "rx0", .dma_req = 16 },
+ { .name = "tx1", .dma_req = 23 },
+ { .name = "rx1", .dma_req = 24 },
+};
+
+static struct omap_hwmod_ocp_if *omap34xx_mcspi3_slaves[] = {
+ &omap34xx_l4_core__mcspi3,
+};
+
+static struct omap2_mcspi_dev_attr omap_mcspi3_dev_attr = {
+ .num_chipselect = 2,
+};
+
+static struct omap_hwmod omap34xx_mcspi3 = {
+ .name = "mcspi3",
+ .mpu_irqs = omap34xx_mcspi3_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap34xx_mcspi3_mpu_irqs),
+ .sdma_reqs = omap34xx_mcspi3_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap34xx_mcspi3_sdma_reqs),
+ .main_clk = "mcspi3_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP3430_EN_MCSPI3_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP3430_ST_MCSPI3_SHIFT,
+ },
+ },
+ .slaves = omap34xx_mcspi3_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap34xx_mcspi3_slaves),
+ .class = &omap34xx_mcspi_class,
+ .dev_attr = &omap_mcspi3_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
+};
+
+/* SPI4 */
+static struct omap_hwmod_irq_info omap34xx_mcspi4_mpu_irqs[] = {
+ { .name = "irq", .irq = INT_34XX_SPI4_IRQ }, /* 48 */
+};
+
+static struct omap_hwmod_dma_info omap34xx_mcspi4_sdma_reqs[] = {
+ { .name = "tx0", .dma_req = 70 }, /* DMA_SPI4_TX0 */
+ { .name = "rx0", .dma_req = 71 }, /* DMA_SPI4_RX0 */
+};
+
+static struct omap_hwmod_ocp_if *omap34xx_mcspi4_slaves[] = {
+ &omap34xx_l4_core__mcspi4,
+};
+
+static struct omap2_mcspi_dev_attr omap_mcspi4_dev_attr = {
+ .num_chipselect = 1,
+};
+
+static struct omap_hwmod omap34xx_mcspi4 = {
+ .name = "mcspi4",
+ .mpu_irqs = omap34xx_mcspi4_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap34xx_mcspi4_mpu_irqs),
+ .sdma_reqs = omap34xx_mcspi4_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap34xx_mcspi4_sdma_reqs),
+ .main_clk = "mcspi4_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP3430_EN_MCSPI4_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP3430_ST_MCSPI4_SHIFT,
+ },
+ },
+ .slaves = omap34xx_mcspi4_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap34xx_mcspi4_slaves),
+ .class = &omap34xx_mcspi_class,
+ .dev_attr = &omap_mcspi4_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
+};
+
static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
&omap3xxx_l3_main_hwmod,
&omap3xxx_l4_core_hwmod,
@@ -1387,6 +1661,12 @@ static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
/* dma_system class*/
&omap3xxx_dma_system_hwmod,
+
+ /* mcspi class */
+ &omap34xx_mcspi1,
+ &omap34xx_mcspi2,
+ &omap34xx_mcspi3,
+ &omap34xx_mcspi4,
NULL,
};
diff --git a/arch/arm/plat-omap/include/plat/mcspi.h b/arch/arm/plat-omap/include/plat/mcspi.h
index 1254e49..3d51b18 100644
--- a/arch/arm/plat-omap/include/plat/mcspi.h
+++ b/arch/arm/plat-omap/include/plat/mcspi.h
@@ -1,8 +1,19 @@
#ifndef _OMAP2_MCSPI_H
#define _OMAP2_MCSPI_H
+#define OMAP2_MCSPI_REV 0
+#define OMAP3_MCSPI_REV 1
+#define OMAP4_MCSPI_REV 2
+
+#define OMAP4_MCSPI_REG_OFFSET 0x100
+
struct omap2_mcspi_platform_config {
unsigned short num_cs;
+ unsigned int regs_offset;
+};
+
+struct omap2_mcspi_dev_attr {
+ unsigned short num_chipselect;
};
struct omap2_mcspi_device_config {
diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c
index f076cc5..36501ad 100644
--- a/drivers/spi/omap2_mcspi.c
+++ b/drivers/spi/omap2_mcspi.c
@@ -3,7 +3,7 @@
*
* Copyright (C) 2005, 2006 Nokia Corporation
* Author: Samuel Ortiz <samuel.ortiz@nokia.com> and
- * Juha Yrjölä <juha.yrjola@nokia.com>
+ * Juha Yrj�l� <juha.yrjola@nokia.com>
*
* 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
@@ -33,6 +33,7 @@
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/slab.h>
+#include <linux/pm_runtime.h>
#include <linux/spi/spi.h>
@@ -46,7 +47,6 @@
#define OMAP2_MCSPI_MAX_CTRL 4
#define OMAP2_MCSPI_REVISION 0x00
-#define OMAP2_MCSPI_SYSCONFIG 0x10
#define OMAP2_MCSPI_SYSSTATUS 0x14
#define OMAP2_MCSPI_IRQSTATUS 0x18
#define OMAP2_MCSPI_IRQENABLE 0x1c
@@ -63,13 +63,6 @@
/* per-register bitmasks: */
-#define OMAP2_MCSPI_SYSCONFIG_SMARTIDLE BIT(4)
-#define OMAP2_MCSPI_SYSCONFIG_ENAWAKEUP BIT(2)
-#define OMAP2_MCSPI_SYSCONFIG_AUTOIDLE BIT(0)
-#define OMAP2_MCSPI_SYSCONFIG_SOFTRESET BIT(1)
-
-#define OMAP2_MCSPI_SYSSTATUS_RESETDONE BIT(0)
-
#define OMAP2_MCSPI_MODULCTRL_SINGLE BIT(0)
#define OMAP2_MCSPI_MODULCTRL_MS BIT(2)
#define OMAP2_MCSPI_MODULCTRL_STEST BIT(3)
@@ -122,13 +115,12 @@ struct omap2_mcspi {
spinlock_t lock;
struct list_head msg_queue;
struct spi_master *master;
- struct clk *ick;
- struct clk *fck;
/* Virtual base address of the controller */
void __iomem *base;
unsigned long phys;
/* SPI1 has 4 channels, while SPI2 has 2 */
struct omap2_mcspi_dma *dma_channels;
+ struct device *dev;
};
struct omap2_mcspi_cs {
@@ -144,7 +136,6 @@ struct omap2_mcspi_cs {
* corresponding registers are modified.
*/
struct omap2_mcspi_regs {
- u32 sysconfig;
u32 modulctrl;
u32 wakeupenable;
struct list_head cs;
@@ -268,9 +259,6 @@ static void omap2_mcspi_restore_ctx(struct omap2_mcspi *mcspi)
mcspi_write_reg(spi_cntrl, OMAP2_MCSPI_MODULCTRL,
omap2_mcspi_ctx[spi_cntrl->bus_num - 1].modulctrl);
- mcspi_write_reg(spi_cntrl, OMAP2_MCSPI_SYSCONFIG,
- omap2_mcspi_ctx[spi_cntrl->bus_num - 1].sysconfig);
-
mcspi_write_reg(spi_cntrl, OMAP2_MCSPI_WAKEUPENABLE,
omap2_mcspi_ctx[spi_cntrl->bus_num - 1].wakeupenable);
@@ -280,20 +268,12 @@ static void omap2_mcspi_restore_ctx(struct omap2_mcspi *mcspi)
}
static void omap2_mcspi_disable_clocks(struct omap2_mcspi *mcspi)
{
- clk_disable(mcspi->ick);
- clk_disable(mcspi->fck);
+ pm_runtime_put_sync(mcspi->dev);
}
static int omap2_mcspi_enable_clocks(struct omap2_mcspi *mcspi)
{
- if (clk_enable(mcspi->ick))
- return -ENODEV;
- if (clk_enable(mcspi->fck))
- return -ENODEV;
-
- omap2_mcspi_restore_ctx(mcspi);
-
- return 0;
+ return pm_runtime_get_sync(mcspi->dev);
}
static int mcspi_wait_for_reg_bit(void __iomem *reg, unsigned long bit)
@@ -819,8 +799,9 @@ static int omap2_mcspi_setup(struct spi_device *spi)
return ret;
}
- if (omap2_mcspi_enable_clocks(mcspi))
- return -ENODEV;
+ ret = omap2_mcspi_enable_clocks(mcspi);
+ if (ret < 0)
+ return ret;
ret = omap2_mcspi_setup_transfer(spi, NULL);
omap2_mcspi_disable_clocks(mcspi);
@@ -863,10 +844,11 @@ static void omap2_mcspi_work(struct work_struct *work)
struct omap2_mcspi *mcspi;
mcspi = container_of(work, struct omap2_mcspi, work);
- spin_lock_irq(&mcspi->lock);
- if (omap2_mcspi_enable_clocks(mcspi))
- goto out;
+ if (omap2_mcspi_enable_clocks(mcspi) < 0)
+ return;
+
+ spin_lock_irq(&mcspi->lock);
/* We only enable one channel at a time -- the one whose message is
* at the head of the queue -- although this controller would gladly
@@ -979,10 +961,9 @@ static void omap2_mcspi_work(struct work_struct *work)
spin_lock_irq(&mcspi->lock);
}
- omap2_mcspi_disable_clocks(mcspi);
-
-out:
spin_unlock_irq(&mcspi->lock);
+
+ omap2_mcspi_disable_clocks(mcspi);
}
static int omap2_mcspi_transfer(struct spi_device *spi, struct spi_message *m)
@@ -1058,25 +1039,15 @@ static int omap2_mcspi_transfer(struct spi_device *spi, struct spi_message *m)
return 0;
}
-static int __init omap2_mcspi_reset(struct omap2_mcspi *mcspi)
+static int __init omap2_mcspi_master_setup(struct omap2_mcspi *mcspi)
{
struct spi_master *master = mcspi->master;
u32 tmp;
+ int ret = 0;
- if (omap2_mcspi_enable_clocks(mcspi))
- return -1;
-
- mcspi_write_reg(master, OMAP2_MCSPI_SYSCONFIG,
- OMAP2_MCSPI_SYSCONFIG_SOFTRESET);
- do {
- tmp = mcspi_read_reg(master, OMAP2_MCSPI_SYSSTATUS);
- } while (!(tmp & OMAP2_MCSPI_SYSSTATUS_RESETDONE));
-
- tmp = OMAP2_MCSPI_SYSCONFIG_AUTOIDLE |
- OMAP2_MCSPI_SYSCONFIG_ENAWAKEUP |
- OMAP2_MCSPI_SYSCONFIG_SMARTIDLE;
- mcspi_write_reg(master, OMAP2_MCSPI_SYSCONFIG, tmp);
- omap2_mcspi_ctx[master->bus_num - 1].sysconfig = tmp;
+ ret = omap2_mcspi_enable_clocks(mcspi);
+ if (ret < 0)
+ return ret;
tmp = OMAP2_MCSPI_WAKEUPENABLE_WKEN;
mcspi_write_reg(master, OMAP2_MCSPI_WAKEUPENABLE, tmp);
@@ -1087,91 +1058,26 @@ static int __init omap2_mcspi_reset(struct omap2_mcspi *mcspi)
return 0;
}
-static u8 __initdata spi1_rxdma_id [] = {
- OMAP24XX_DMA_SPI1_RX0,
- OMAP24XX_DMA_SPI1_RX1,
- OMAP24XX_DMA_SPI1_RX2,
- OMAP24XX_DMA_SPI1_RX3,
-};
-
-static u8 __initdata spi1_txdma_id [] = {
- OMAP24XX_DMA_SPI1_TX0,
- OMAP24XX_DMA_SPI1_TX1,
- OMAP24XX_DMA_SPI1_TX2,
- OMAP24XX_DMA_SPI1_TX3,
-};
-
-static u8 __initdata spi2_rxdma_id[] = {
- OMAP24XX_DMA_SPI2_RX0,
- OMAP24XX_DMA_SPI2_RX1,
-};
-
-static u8 __initdata spi2_txdma_id[] = {
- OMAP24XX_DMA_SPI2_TX0,
- OMAP24XX_DMA_SPI2_TX1,
-};
-
-#if defined(CONFIG_SOC_OMAP2430) || defined(CONFIG_ARCH_OMAP3) \
- || defined(CONFIG_ARCH_OMAP4)
-static u8 __initdata spi3_rxdma_id[] = {
- OMAP24XX_DMA_SPI3_RX0,
- OMAP24XX_DMA_SPI3_RX1,
-};
+static int omap_mcspi_runtime_resume(struct device *dev)
+{
+ struct omap2_mcspi *mcspi;
+ struct spi_master *master;
-static u8 __initdata spi3_txdma_id[] = {
- OMAP24XX_DMA_SPI3_TX0,
- OMAP24XX_DMA_SPI3_TX1,
-};
-#endif
+ master = dev_get_drvdata(dev);
+ mcspi = spi_master_get_devdata(master);
+ omap2_mcspi_restore_ctx(mcspi);
-#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
-static u8 __initdata spi4_rxdma_id[] = {
- OMAP34XX_DMA_SPI4_RX0,
-};
+ return 0;
+}
-static u8 __initdata spi4_txdma_id[] = {
- OMAP34XX_DMA_SPI4_TX0,
-};
-#endif
static int __init omap2_mcspi_probe(struct platform_device *pdev)
{
struct spi_master *master;
+ struct omap2_mcspi_platform_config *pdata = pdev->dev.platform_data;
struct omap2_mcspi *mcspi;
struct resource *r;
int status = 0, i;
- const u8 *rxdma_id, *txdma_id;
- unsigned num_chipselect;
-
- switch (pdev->id) {
- case 1:
- rxdma_id = spi1_rxdma_id;
- txdma_id = spi1_txdma_id;
- num_chipselect = 4;
- break;
- case 2:
- rxdma_id = spi2_rxdma_id;
- txdma_id = spi2_txdma_id;
- num_chipselect = 2;
- break;
-#if defined(CONFIG_SOC_OMAP2430) || defined(CONFIG_ARCH_OMAP3) \
- || defined(CONFIG_ARCH_OMAP4)
- case 3:
- rxdma_id = spi3_rxdma_id;
- txdma_id = spi3_txdma_id;
- num_chipselect = 2;
- break;
-#endif
-#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
- case 4:
- rxdma_id = spi4_rxdma_id;
- txdma_id = spi4_txdma_id;
- num_chipselect = 1;
- break;
-#endif
- default:
- return -EINVAL;
- }
master = spi_alloc_master(&pdev->dev, sizeof *mcspi);
if (master == NULL) {
@@ -1188,7 +1094,7 @@ static int __init omap2_mcspi_probe(struct platform_device *pdev)
master->setup = omap2_mcspi_setup;
master->transfer = omap2_mcspi_transfer;
master->cleanup = omap2_mcspi_cleanup;
- master->num_chipselect = num_chipselect;
+ master->num_chipselect = pdata->num_cs;
dev_set_drvdata(&pdev->dev, master);
@@ -1206,49 +1112,62 @@ static int __init omap2_mcspi_probe(struct platform_device *pdev)
goto err1;
}
+ r->start += pdata->regs_offset;
+ r->end += pdata->regs_offset;
mcspi->phys = r->start;
mcspi->base = ioremap(r->start, r->end - r->start + 1);
if (!mcspi->base) {
dev_dbg(&pdev->dev, "can't ioremap MCSPI\n");
status = -ENOMEM;
- goto err1aa;
+ goto err2;
}
+ mcspi->dev = &pdev->dev;
INIT_WORK(&mcspi->work, omap2_mcspi_work);
spin_lock_init(&mcspi->lock);
INIT_LIST_HEAD(&mcspi->msg_queue);
INIT_LIST_HEAD(&omap2_mcspi_ctx[master->bus_num - 1].cs);
- mcspi->ick = clk_get(&pdev->dev, "ick");
- if (IS_ERR(mcspi->ick)) {
- dev_dbg(&pdev->dev, "can't get mcspi_ick\n");
- status = PTR_ERR(mcspi->ick);
- goto err1a;
- }
- mcspi->fck = clk_get(&pdev->dev, "fck");
- if (IS_ERR(mcspi->fck)) {
- dev_dbg(&pdev->dev, "can't get mcspi_fck\n");
- status = PTR_ERR(mcspi->fck);
- goto err2;
- }
-
mcspi->dma_channels = kcalloc(master->num_chipselect,
sizeof(struct omap2_mcspi_dma),
GFP_KERNEL);
if (mcspi->dma_channels == NULL)
- goto err3;
+ goto err2;
+
+ for (i = 0; i < master->num_chipselect; i++) {
+ char dma_ch_name[14];
+ struct resource *dma_res;
+
+ sprintf(dma_ch_name, "rx%d", i);
+ dma_res = platform_get_resource_byname(pdev, IORESOURCE_DMA,
+ dma_ch_name);
+ if (!dma_res) {
+ dev_dbg(&pdev->dev, "cannot get DMA RX channel\n");
+ status = -ENODEV;
+ break;
+ }
- for (i = 0; i < num_chipselect; i++) {
mcspi->dma_channels[i].dma_rx_channel = -1;
- mcspi->dma_channels[i].dma_rx_sync_dev = rxdma_id[i];
+ mcspi->dma_channels[i].dma_rx_sync_dev = dma_res->start;
+ sprintf(dma_ch_name, "tx%d", i);
+ dma_res = platform_get_resource_byname(pdev, IORESOURCE_DMA,
+ dma_ch_name);
+ if (!dma_res) {
+ dev_dbg(&pdev->dev, "cannot get DMA TX channel\n");
+ status = -ENODEV;
+ break;
+ }
+
mcspi->dma_channels[i].dma_tx_channel = -1;
- mcspi->dma_channels[i].dma_tx_sync_dev = txdma_id[i];
+ mcspi->dma_channels[i].dma_tx_sync_dev = dma_res->start;
}
- if (omap2_mcspi_reset(mcspi) < 0)
- goto err4;
+ pm_runtime_enable(&pdev->dev);
+
+ if (status || omap2_mcspi_master_setup(mcspi) < 0)
+ goto err3;
status = spi_register_master(master);
if (status < 0)
@@ -1257,17 +1176,13 @@ static int __init omap2_mcspi_probe(struct platform_device *pdev)
return status;
err4:
- kfree(mcspi->dma_channels);
+ spi_master_put(master);
err3:
- clk_put(mcspi->fck);
+ kfree(mcspi->dma_channels);
err2:
- clk_put(mcspi->ick);
-err1a:
- iounmap(mcspi->base);
-err1aa:
release_mem_region(r->start, (r->end - r->start) + 1);
+ iounmap(mcspi->base);
err1:
- spi_master_put(master);
return status;
}
@@ -1283,9 +1198,7 @@ static int __exit omap2_mcspi_remove(struct platform_device *pdev)
mcspi = spi_master_get_devdata(master);
dma_channels = mcspi->dma_channels;
- clk_put(mcspi->fck);
- clk_put(mcspi->ick);
-
+ omap2_mcspi_disable_clocks(mcspi);
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(r->start, (r->end - r->start) + 1);
@@ -1336,6 +1249,7 @@ static int omap2_mcspi_resume(struct device *dev)
static const struct dev_pm_ops omap2_mcspi_pm_ops = {
.resume = omap2_mcspi_resume,
+ .runtime_resume = omap_mcspi_runtime_resume,
};
static struct platform_driver omap2_mcspi_driver = {
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