diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2010-10-06 13:41:15 (GMT) |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2010-12-03 10:04:54 (GMT) |
| commit | 5b28aa319bba96987316425a1131813d87cbab35 (patch) | |
| tree | 7fac8d3e54717355d83ac3d3fd1e4ec7440d7126 /arch/arm/plat-mxc | |
| parent | 9ab4650f718a0e1cb8792bab4ef97efca4ac75c2 (diff) | |
| download | linux-5b28aa319bba96987316425a1131813d87cbab35.tar.xz | |
dmaengine i.MX SDMA: Allow to run without firmware
The SDMA firmware consists of a ROM part and a RAM part.
The ROM part is always present in the SDMA engine and
is sufficient for many cases.
This patch allows to pass in platform data containing
the script addresses in ROM, so loading a firmware is
optional now.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'arch/arm/plat-mxc')
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/sdma.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/include/mach/sdma.h b/arch/arm/plat-mxc/include/mach/sdma.h index 9be1122..913e043 100644 --- a/arch/arm/plat-mxc/include/mach/sdma.h +++ b/arch/arm/plat-mxc/include/mach/sdma.h @@ -2,16 +2,62 @@ #define __MACH_MXC_SDMA_H__ /** + * struct sdma_script_start_addrs - SDMA script start pointers + * + * start addresses of the different functions in the physical + * address space of the SDMA engine. + */ +struct sdma_script_start_addrs { + s32 ap_2_ap_addr; + s32 ap_2_bp_addr; + s32 ap_2_ap_fixed_addr; + s32 bp_2_ap_addr; + s32 loopback_on_dsp_side_addr; + s32 mcu_interrupt_only_addr; + s32 firi_2_per_addr; + s32 firi_2_mcu_addr; + s32 per_2_firi_addr; + s32 mcu_2_firi_addr; + s32 uart_2_per_addr; + s32 uart_2_mcu_addr; + s32 per_2_app_addr; + s32 mcu_2_app_addr; + s32 per_2_per_addr; + s32 uartsh_2_per_addr; + s32 uartsh_2_mcu_addr; + s32 per_2_shp_addr; + s32 mcu_2_shp_addr; + s32 ata_2_mcu_addr; + s32 mcu_2_ata_addr; + s32 app_2_per_addr; + s32 app_2_mcu_addr; + s32 shp_2_per_addr; + s32 shp_2_mcu_addr; + s32 mshc_2_mcu_addr; + s32 mcu_2_mshc_addr; + s32 spdif_2_mcu_addr; + s32 mcu_2_spdif_addr; + s32 asrc_2_mcu_addr; + s32 ext_mem_2_ipu_addr; + s32 descrambler_addr; + s32 dptc_dvfs_addr; + s32 utra_addr; + s32 ram_code_start_addr; +}; + +/** * struct sdma_platform_data - platform specific data for SDMA engine * * @sdma_version The version of this SDMA engine * @cpu_name used to generate the firmware name * @to_version CPU Tape out version + * @script_addrs SDMA scripts addresses in SDMA ROM */ struct sdma_platform_data { int sdma_version; char *cpu_name; int to_version; + struct sdma_script_start_addrs *script_addrs; }; #endif /* __MACH_MXC_SDMA_H__ */ |