From mboxrd@z Thu Jan 1 00:00:00 1970 From: "G, Manjunath Kondaiah" Subject: [PATCH v5 03/14] OMAP2420: hwmod data: add system DMA Date: Wed, 24 Nov 2010 18:21:39 +0530 Message-ID: <1290603110-14119-4-git-send-email-manjugk@ti.com> References: <1290603110-14119-1-git-send-email-manjugk@ti.com> Return-path: Received: from bear.ext.ti.com ([192.94.94.41]:53646 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754970Ab0KXMwN (ORCPT ); Wed, 24 Nov 2010 07:52:13 -0500 In-Reply-To: <1290603110-14119-1-git-send-email-manjugk@ti.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: linux-omap@vger.kernel.org Cc: "G, Manjunath Kondaiah" , linux-arm-kernel@lists.infradead.org, Kevin Hilman , Tony Lindgren , Santosh Shilimkar , Benoit Cousson Add OMAP2420 DMA hwmod data and also add required DMA device attributes. Signed-off-by: G, Manjunath Kondaiah Cc: linux-arm-kernel@lists.infradead.org Cc: Kevin Hilman Cc: Tony Lindgren Cc: Santosh Shilimkar Cc: Benoit Cousson --- arch/arm/mach-omap2/omap_hwmod_2420_data.c | 87 ++++++++++++++++++++++++++++ arch/arm/plat-omap/include/plat/dma.h | 11 ++++ 2 files changed, 98 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 a1a3dd6..81aa0d9 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c @@ -38,6 +38,7 @@ static struct omap_hwmod omap2420_iva_hwmod; static struct omap_hwmod omap2420_l3_main_hwmod; static struct omap_hwmod omap2420_l4_core_hwmod; static struct omap_hwmod omap2420_wd_timer2_hwmod; +static struct omap_hwmod omap2420_dma_system_hwmod; /* L3 -> L4_CORE interface */ static struct omap_hwmod_ocp_if omap2420_l3_main__l4_core = { @@ -557,6 +558,89 @@ static struct omap_hwmod omap2420_i2c2_hwmod = { .flags = HWMOD_16BIT_REG, }; +/* system dma */ +static struct omap_hwmod_class_sysconfig omap2420_dma_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x002c, + .syss_offs = 0x0028, + .sysc_flags = (SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET | + SYSC_HAS_MIDLEMODE | SYSC_HAS_CLOCKACTIVITY | + SYSC_HAS_EMUFREE | SYSC_HAS_AUTOIDLE), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | + 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 = "l3_div_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_cfg -> dma_system */ +static struct omap_hwmod_ocp_if omap2420_l4_core__dma_system = { + .master = &omap2420_l4_core_hwmod, + .slave = &omap2420_dma_system_hwmod, + .clk = "l4_div_ck", + .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 = "l3_div_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, @@ -569,6 +653,9 @@ static __initdata struct omap_hwmod *omap2420_hwmods[] = { &omap2420_uart3_hwmod, &omap2420_i2c1_hwmod, &omap2420_i2c2_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 2378399..c466566 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, -- 1.7.1