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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>
This commit is contained in:
G, Manjunath Kondaiah 2010-12-20 18:27:18 -08:00 committed by Tony Lindgren
parent d3c9be2f42
commit 745685df95
2 changed files with 97 additions and 0 deletions
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86
arch/arm/mach-omap2/omap_hwmod_2420_data.c
View File

@ -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,
};

11
arch/arm/plat-omap/include/plat/dma.h
View File

@ -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,