OMAP2420: hwmod data: add system DMA

Add OMAP2420 DMA hwmod data and also add required
DMA device attributes.

Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

2 files changed, 97 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
index d95342599793..42606f6b0cdf 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
@@ -42,6 +42,7 @@ static struct omap_hwmod omap2420_gpio1_hwmod;
 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;
 
 /* L3 -> L4_CORE interface */
 static struct omap_hwmod_ocp_if omap2420_l3_main__l4_core = {
@@ -779,6 +780,88 @@ static struct omap_hwmod omap2420_gpio4_hwmod = {
         .omap_chip      = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
 };
 
+/* system dma */
+static struct omap_hwmod_class_sysconfig omap2420_dma_sysc = {
+        .rev_offs       = 0x0000,
+        .sysc_offs      = 0x002c,
+        .syss_offs      = 0x0028,
+        .sysc_flags     = (SYSC_HAS_SOFTRESET | SYSC_HAS_MIDLEMODE |
+                           SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_EMUFREE |
+                           SYSC_HAS_AUTOIDLE),
+        .idlemodes      = (MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
+        .sysc_fields    = &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap2420_dma_hwmod_class = {
+        .name = "dma",
+        .sysc = &omap2420_dma_sysc,
+};
+
+/* dma attributes */
+static struct omap_dma_dev_attr dma_dev_attr = {
+        .dev_caps  = RESERVE_CHANNEL | DMA_LINKED_LCH | GLOBAL_PRIORITY |
+                                                IS_CSSA_32 | IS_CDSA_32,
+        .lch_count = 32,
+};
+
+static struct omap_hwmod_irq_info omap2420_dma_system_irqs[] = {
+        { .name = "0", .irq = 12 }, /* INT_24XX_SDMA_IRQ0 */
+        { .name = "1", .irq = 13 }, /* INT_24XX_SDMA_IRQ1 */
+        { .name = "2", .irq = 14 }, /* INT_24XX_SDMA_IRQ2 */
+        { .name = "3", .irq = 15 }, /* INT_24XX_SDMA_IRQ3 */
+};
+
+static struct omap_hwmod_addr_space omap2420_dma_system_addrs[] = {
+        {
+                .pa_start       = 0x48056000,
+                .pa_end         = 0x4a0560ff,
+                .flags          = ADDR_TYPE_RT
+        },
+};
+
+/* dma_system -> L3 */
+static struct omap_hwmod_ocp_if omap2420_dma_system__l3 = {
+        .master         = &omap2420_dma_system_hwmod,
+        .slave          = &omap2420_l3_main_hwmod,
+        .clk            = "core_l3_ck",
+        .user           = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* dma_system master ports */
+static struct omap_hwmod_ocp_if *omap2420_dma_system_masters[] = {
+        &omap2420_dma_system__l3,
+};
+
+/* l4_core -> dma_system */
+static struct omap_hwmod_ocp_if omap2420_l4_core__dma_system = {
+        .master         = &omap2420_l4_core_hwmod,
+        .slave          = &omap2420_dma_system_hwmod,
+        .clk            = "sdma_ick",
+        .addr           = omap2420_dma_system_addrs,
+        .addr_cnt       = ARRAY_SIZE(omap2420_dma_system_addrs),
+        .user           = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* dma_system slave ports */
+static struct omap_hwmod_ocp_if *omap2420_dma_system_slaves[] = {
+        &omap2420_l4_core__dma_system,
+};
+
+static struct omap_hwmod omap2420_dma_system_hwmod = {
+        .name           = "dma",
+        .class          = &omap2420_dma_hwmod_class,
+        .mpu_irqs       = omap2420_dma_system_irqs,
+        .mpu_irqs_cnt   = ARRAY_SIZE(omap2420_dma_system_irqs),
+        .main_clk       = "core_l3_ck",
+        .slaves         = omap2420_dma_system_slaves,
+        .slaves_cnt     = ARRAY_SIZE(omap2420_dma_system_slaves),
+        .masters        = omap2420_dma_system_masters,
+        .masters_cnt    = ARRAY_SIZE(omap2420_dma_system_masters),
+        .dev_attr       = &dma_dev_attr,
+        .omap_chip      = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
+        .flags          = HWMOD_NO_IDLEST,
+};
+
 static __initdata struct omap_hwmod *omap2420_hwmods[] = {
         &omap2420_l3_main_hwmod,
         &omap2420_l4_core_hwmod,
@@ -797,6 +880,9 @@ static __initdata struct omap_hwmod *omap2420_hwmods[] = {
         &omap2420_gpio2_hwmod,
         &omap2420_gpio3_hwmod,
         &omap2420_gpio4_hwmod,
+
+        /* dma_system class*/
+        &omap2420_dma_system_hwmod,
         NULL,
 };
 
diff --git a/arch/arm/plat-omap/include/plat/dma.h b/arch/arm/plat-omap/include/plat/dma.h
index 23783990eb9a..c4665669a8a3 100644
--- a/arch/arm/plat-omap/include/plat/dma.h
+++ b/arch/arm/plat-omap/include/plat/dma.h
@@ -295,6 +295,13 @@
 #define DMA_ERRATA_3_3                  BIT(0x5)
 #define DMA_ROMCODE_BUG                 BIT(0x6)
 
+/* Attributes for OMAP DMA Contrller */
+#define DMA_LINKED_LCH                  BIT(0x0)
+#define GLOBAL_PRIORITY                 BIT(0x1)
+#define RESERVE_CHANNEL                 BIT(0x2)
+#define IS_CSSA_32                      BIT(0x3)
+#define IS_CDSA_32                      BIT(0x4)
+
 enum omap_reg_offsets {
 
 GCR,            GSCR,           GRST1,          HW_ID,
@@ -389,6 +396,10 @@ struct omap_dma_channel_params {
 #endif
 };
 
+struct omap_dma_dev_attr {
+        u32 dev_caps;
+        u16 lch_count;
+};
 
 extern void omap_set_dma_priority(int lch, int dst_port, int priority);
 extern int omap_request_dma(int dev_id, const char *dev_name,