| Message ID | 823cd307bea7416cf7df804bbcb77ab2887e0687.1585751281.git.leonard.crestez@nxp.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | interconnect: Add imx support via devfreq | expand |
Hi Leonard, On 4/1/20 17:33, Leonard Crestez wrote: > Add a platform driver for the i.MX8MM SoC describing bus topology. > > Bandwidth adjustments is currently only supported on the DDRC and main > NOC. Scaling for the vpu/gpu/display NICs could be added in the future. > > Signed-off-by: Alexandre Bailon <abailon@baylibre.com> > Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> > --- > drivers/interconnect/imx/Kconfig | 4 + > drivers/interconnect/imx/Makefile | 2 + > drivers/interconnect/imx/imx8mm.c | 108 ++++++++++++++++++++++ > include/dt-bindings/interconnect/imx8mm.h | 49 ++++++++++ > 4 files changed, 163 insertions(+) > create mode 100644 drivers/interconnect/imx/imx8mm.c > create mode 100644 include/dt-bindings/interconnect/imx8mm.h > > diff --git a/drivers/interconnect/imx/Kconfig b/drivers/interconnect/imx/Kconfig > index f39336f8d603..2cd4fad4976a 100644 > --- a/drivers/interconnect/imx/Kconfig > +++ b/drivers/interconnect/imx/Kconfig > @@ -1,5 +1,9 @@ > config INTERCONNECT_IMX > tristate "i.MX interconnect drivers" > depends on ARCH_MXC || COMPILE_TEST > help > Generic interconnect drivers for i.MX SOCs > + > +config INTERCONNECT_IMX8MM > + tristate "i.MX8MM interconnect driver" > + depends on INTERCONNECT_IMX > diff --git a/drivers/interconnect/imx/Makefile b/drivers/interconnect/imx/Makefile > index 86ae0bd28d8c..c234e5d3dfd1 100644 > --- a/drivers/interconnect/imx/Makefile > +++ b/drivers/interconnect/imx/Makefile > @@ -1,3 +1,5 @@ > imx-interconnect-objs := imx.o > +imx8mm-interconnect-objs := imx8mm.o > > obj-$(CONFIG_INTERCONNECT_IMX) += imx-interconnect.o > +obj-$(CONFIG_INTERCONNECT_IMX8MM) += imx8mm-interconnect.o > diff --git a/drivers/interconnect/imx/imx8mm.c b/drivers/interconnect/imx/imx8mm.c > new file mode 100644 > index 000000000000..ee3783a98c01 > --- /dev/null > +++ b/drivers/interconnect/imx/imx8mm.c > @@ -0,0 +1,108 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Interconnect framework driver for i.MX SoC > + * > + * Copyright (c) 2019, BayLibre > + * Copyright (c) 2019, NXP > + * Author: Alexandre Bailon <abailon@baylibre.com> > + * Author: Leonard Crestez <leonard.crestez@nxp.com> > + */ > + > +#include <linux/device.h> Is this used? > +#include <linux/module.h> > +#include <linux/of_platform.h> Is this used? > +#include <linux/platform_device.h> > + > +#include <dt-bindings/interconnect/imx8mm.h> > + > +#include "imx.h" > + > +static const struct imx_icc_node_adj_desc imx8mm_dram_adj = { > + .bw_mul = 1, > + .bw_div = 16, > + .phandle_name = "fsl,ddrc", > +}; > + > +static const struct imx_icc_node_adj_desc imx8mm_noc_adj = { > + .bw_mul = 1, > + .bw_div = 16, > + .main_noc = true, > +}; > + > +/* > + * Describe bus masters, slaves and connections between them > + * > + * This is a simplified subset of the bus diagram, there are several other > + * PL301 nics which are skipped/merged into PL301_MAIN > + */ > +static struct imx_icc_node_desc nodes[] = { > + DEFINE_BUS_INTERCONNECT("NOC", IMX8MM_ICN_NOC, &imx8mm_noc_adj, > + IMX8MM_ICS_DRAM, IMX8MM_ICN_MAIN), > + > + DEFINE_BUS_SLAVE("DRAM", IMX8MM_ICS_DRAM, &imx8mm_dram_adj), > + DEFINE_BUS_SLAVE("OCRAM", IMX8MM_ICS_OCRAM, NULL), > + DEFINE_BUS_MASTER("A53", IMX8MM_ICM_A53, IMX8MM_ICN_NOC), > + > + /* VPUMIX */ > + DEFINE_BUS_MASTER("VPU H1", IMX8MM_ICM_VPU_H1, IMX8MM_ICN_VIDEO), > + DEFINE_BUS_MASTER("VPU G1", IMX8MM_ICM_VPU_G1, IMX8MM_ICN_VIDEO), > + DEFINE_BUS_MASTER("VPU G2", IMX8MM_ICM_VPU_G2, IMX8MM_ICN_VIDEO), > + DEFINE_BUS_INTERCONNECT("PL301_VIDEO", IMX8MM_ICN_VIDEO, NULL, IMX8MM_ICN_NOC), > + > + /* GPUMIX */ > + DEFINE_BUS_MASTER("GPU 2D", IMX8MM_ICM_GPU2D, IMX8MM_ICN_GPU), > + DEFINE_BUS_MASTER("GPU 3D", IMX8MM_ICM_GPU3D, IMX8MM_ICN_GPU), > + DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MM_ICN_GPU, NULL, IMX8MM_ICN_NOC), > + > + /* DISPLAYMIX */ > + DEFINE_BUS_MASTER("CSI", IMX8MM_ICM_CSI, IMX8MM_ICN_MIPI), > + DEFINE_BUS_MASTER("LCDIF", IMX8MM_ICM_LCDIF, IMX8MM_ICN_MIPI), > + DEFINE_BUS_INTERCONNECT("PL301_MIPI", IMX8MM_ICN_MIPI, NULL, IMX8MM_ICN_NOC), > + > + /* HSIO */ > + DEFINE_BUS_MASTER("USB1", IMX8MM_ICM_USB1, IMX8MM_ICN_HSIO), > + DEFINE_BUS_MASTER("USB2", IMX8MM_ICM_USB2, IMX8MM_ICN_HSIO), > + DEFINE_BUS_MASTER("PCIE", IMX8MM_ICM_PCIE, IMX8MM_ICN_HSIO), > + DEFINE_BUS_INTERCONNECT("PL301_HSIO", IMX8MM_ICN_HSIO, NULL, IMX8MM_ICN_NOC), > + > + /* Audio */ > + DEFINE_BUS_MASTER("SDMA2", IMX8MM_ICM_SDMA2, IMX8MM_ICN_AUDIO), > + DEFINE_BUS_MASTER("SDMA3", IMX8MM_ICM_SDMA3, IMX8MM_ICN_AUDIO), > + DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MM_ICN_AUDIO, NULL, IMX8MM_ICN_MAIN), > + > + /* Ethernet */ > + DEFINE_BUS_MASTER("ENET", IMX8MM_ICM_ENET, IMX8MM_ICN_ENET), > + DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MM_ICN_ENET, NULL, IMX8MM_ICN_MAIN), > + > + /* Other */ > + DEFINE_BUS_MASTER("SDMA1", IMX8MM_ICM_SDMA1, IMX8MM_ICN_MAIN), > + DEFINE_BUS_MASTER("NAND", IMX8MM_ICM_NAND, IMX8MM_ICN_MAIN), > + DEFINE_BUS_MASTER("USDHC1", IMX8MM_ICM_USDHC1, IMX8MM_ICN_MAIN), > + DEFINE_BUS_MASTER("USDHC2", IMX8MM_ICM_USDHC2, IMX8MM_ICN_MAIN), > + DEFINE_BUS_MASTER("USDHC3", IMX8MM_ICM_USDHC3, IMX8MM_ICN_MAIN), > + DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MM_ICN_MAIN, NULL, > + IMX8MM_ICN_NOC, IMX8MM_ICS_OCRAM), > +}; > + > +static int imx8mm_icc_probe(struct platform_device *pdev) > +{ > + return imx_icc_register(pdev, nodes, ARRAY_SIZE(nodes)); > +} > + > +static int imx8mm_icc_remove(struct platform_device *pdev) > +{ > + return imx_icc_unregister(pdev); > +} > + > +static struct platform_driver imx8mm_icc_driver = { > + .probe = imx8mm_icc_probe, > + .remove = imx8mm_icc_remove, > + .driver = { > + .name = "imx8mm-interconnect", > + }, > +}; > + > +module_platform_driver(imx8mm_icc_driver); > +MODULE_AUTHOR("Alexandre Bailon <abailon@baylibre.com>"); > +MODULE_LICENSE("GPL v2"); > +MODULE_ALIAS("platform:imx8mm-interconnect"); > diff --git a/include/dt-bindings/interconnect/imx8mm.h b/include/dt-bindings/interconnect/imx8mm.h > new file mode 100644 > index 000000000000..5404f2af15c3 > --- /dev/null > +++ b/include/dt-bindings/interconnect/imx8mm.h > @@ -0,0 +1,49 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +/* > + * Interconnect framework driver for i.MX SoC > + * > + * Copyright (c) 2019, BayLibre > + * Author: Alexandre Bailon <abailon@baylibre.com> > + */ > + > +#ifndef __IMX8MM_ICM_INTERCONNECT_IDS_H > +#define __IMX8MM_ICM_INTERCONNECT_IDS_H Nit: Some people make this match the path, but it's up to you. > + > +#define IMX8MM_ICN_NOC 1 > +#define IMX8MM_ICS_DRAM 2 > +#define IMX8MM_ICS_OCRAM 3 > +#define IMX8MM_ICM_A53 4 > + > +#define IMX8MM_ICM_VPU_H1 5 > +#define IMX8MM_ICM_VPU_G1 6 > +#define IMX8MM_ICM_VPU_G2 7 > +#define IMX8MM_ICN_VIDEO 8 > + > +#define IMX8MM_ICM_GPU2D 9 > +#define IMX8MM_ICM_GPU3D 10 > +#define IMX8MM_ICN_GPU 11 > + > +#define IMX8MM_ICM_CSI 12 > +#define IMX8MM_ICM_LCDIF 13 > +#define IMX8MM_ICN_MIPI 14 > + > +#define IMX8MM_ICM_USB1 15 > +#define IMX8MM_ICM_USB2 16 > +#define IMX8MM_ICM_PCIE 17 > +#define IMX8MM_ICN_HSIO 18 > + > +#define IMX8MM_ICM_SDMA2 19 > +#define IMX8MM_ICM_SDMA3 20 > +#define IMX8MM_ICN_AUDIO 21 > + > +#define IMX8MM_ICN_ENET 22 > +#define IMX8MM_ICM_ENET 23 > + > +#define IMX8MM_ICN_MAIN 24 > +#define IMX8MM_ICM_NAND 25 > +#define IMX8MM_ICM_SDMA1 26 > +#define IMX8MM_ICM_USDHC1 27 > +#define IMX8MM_ICM_USDHC2 28 > +#define IMX8MM_ICM_USDHC3 29 > + > +#endif /* __IMX8MM_ICM_INTERCONNECT_IDS_H */ > Looks good! Thanks, Georgi
On 2020-04-02 2:14 PM, Georgi Djakov wrote: > Hi Leonard, > > On 4/1/20 17:33, Leonard Crestez wrote: >> Add a platform driver for the i.MX8MM SoC describing bus topology. >> >> Bandwidth adjustments is currently only supported on the DDRC and main >> NOC. Scaling for the vpu/gpu/display NICs could be added in the future. >> >> Signed-off-by: Alexandre Bailon <abailon@baylibre.com> >> Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> >> --- >> drivers/interconnect/imx/Kconfig | 4 + >> drivers/interconnect/imx/Makefile | 2 + >> drivers/interconnect/imx/imx8mm.c | 108 ++++++++++++++++++++++ >> include/dt-bindings/interconnect/imx8mm.h | 49 ++++++++++ >> 4 files changed, 163 insertions(+) >> create mode 100644 drivers/interconnect/imx/imx8mm.c >> create mode 100644 include/dt-bindings/interconnect/imx8mm.h >> >> diff --git a/drivers/interconnect/imx/Kconfig b/drivers/interconnect/imx/Kconfig >> index f39336f8d603..2cd4fad4976a 100644 >> --- a/drivers/interconnect/imx/Kconfig >> +++ b/drivers/interconnect/imx/Kconfig >> @@ -1,5 +1,9 @@ >> config INTERCONNECT_IMX >> tristate "i.MX interconnect drivers" >> depends on ARCH_MXC || COMPILE_TEST >> help >> Generic interconnect drivers for i.MX SOCs >> + >> +config INTERCONNECT_IMX8MM >> + tristate "i.MX8MM interconnect driver" >> + depends on INTERCONNECT_IMX >> diff --git a/drivers/interconnect/imx/Makefile b/drivers/interconnect/imx/Makefile >> index 86ae0bd28d8c..c234e5d3dfd1 100644 >> --- a/drivers/interconnect/imx/Makefile >> +++ b/drivers/interconnect/imx/Makefile >> @@ -1,3 +1,5 @@ >> imx-interconnect-objs := imx.o >> +imx8mm-interconnect-objs := imx8mm.o >> >> obj-$(CONFIG_INTERCONNECT_IMX) += imx-interconnect.o >> +obj-$(CONFIG_INTERCONNECT_IMX8MM) += imx8mm-interconnect.o >> diff --git a/drivers/interconnect/imx/imx8mm.c b/drivers/interconnect/imx/imx8mm.c >> new file mode 100644 >> index 000000000000..ee3783a98c01 >> --- /dev/null >> +++ b/drivers/interconnect/imx/imx8mm.c >> @@ -0,0 +1,108 @@ >> +// SPDX-License-Identifier: GPL-2.0 >> +/* >> + * Interconnect framework driver for i.MX SoC >> + * >> + * Copyright (c) 2019, BayLibre >> + * Copyright (c) 2019, NXP >> + * Author: Alexandre Bailon <abailon@baylibre.com> >> + * Author: Leonard Crestez <leonard.crestez@nxp.com> >> + */ >> + >> +#include <linux/device.h> > > Is this used? >> +#include <linux/module.h> >> +#include <linux/of_platform.h> > > Is this used? >> +#include <linux/platform_device.h> >> + >> +#include <dt-bindings/interconnect/imx8mm.h> Trimmed >> + >> +#include "imx.h" >> + >> +static const struct imx_icc_node_adj_desc imx8mm_dram_adj = { >> + .bw_mul = 1, >> + .bw_div = 16, >> + .phandle_name = "fsl,ddrc", >> +}; >> + >> +static const struct imx_icc_node_adj_desc imx8mm_noc_adj = { >> + .bw_mul = 1, >> + .bw_div = 16, >> + .main_noc = true, >> +}; >> + >> +/* >> + * Describe bus masters, slaves and connections between them >> + * >> + * This is a simplified subset of the bus diagram, there are several other >> + * PL301 nics which are skipped/merged into PL301_MAIN >> + */ >> +static struct imx_icc_node_desc nodes[] = { >> + DEFINE_BUS_INTERCONNECT("NOC", IMX8MM_ICN_NOC, &imx8mm_noc_adj, >> + IMX8MM_ICS_DRAM, IMX8MM_ICN_MAIN), >> + >> + DEFINE_BUS_SLAVE("DRAM", IMX8MM_ICS_DRAM, &imx8mm_dram_adj), >> + DEFINE_BUS_SLAVE("OCRAM", IMX8MM_ICS_OCRAM, NULL), >> + DEFINE_BUS_MASTER("A53", IMX8MM_ICM_A53, IMX8MM_ICN_NOC), >> + >> + /* VPUMIX */ >> + DEFINE_BUS_MASTER("VPU H1", IMX8MM_ICM_VPU_H1, IMX8MM_ICN_VIDEO), >> + DEFINE_BUS_MASTER("VPU G1", IMX8MM_ICM_VPU_G1, IMX8MM_ICN_VIDEO), >> + DEFINE_BUS_MASTER("VPU G2", IMX8MM_ICM_VPU_G2, IMX8MM_ICN_VIDEO), >> + DEFINE_BUS_INTERCONNECT("PL301_VIDEO", IMX8MM_ICN_VIDEO, NULL, IMX8MM_ICN_NOC), >> + >> + /* GPUMIX */ >> + DEFINE_BUS_MASTER("GPU 2D", IMX8MM_ICM_GPU2D, IMX8MM_ICN_GPU), >> + DEFINE_BUS_MASTER("GPU 3D", IMX8MM_ICM_GPU3D, IMX8MM_ICN_GPU), >> + DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MM_ICN_GPU, NULL, IMX8MM_ICN_NOC), >> + >> + /* DISPLAYMIX */ >> + DEFINE_BUS_MASTER("CSI", IMX8MM_ICM_CSI, IMX8MM_ICN_MIPI), >> + DEFINE_BUS_MASTER("LCDIF", IMX8MM_ICM_LCDIF, IMX8MM_ICN_MIPI), >> + DEFINE_BUS_INTERCONNECT("PL301_MIPI", IMX8MM_ICN_MIPI, NULL, IMX8MM_ICN_NOC), >> + >> + /* HSIO */ >> + DEFINE_BUS_MASTER("USB1", IMX8MM_ICM_USB1, IMX8MM_ICN_HSIO), >> + DEFINE_BUS_MASTER("USB2", IMX8MM_ICM_USB2, IMX8MM_ICN_HSIO), >> + DEFINE_BUS_MASTER("PCIE", IMX8MM_ICM_PCIE, IMX8MM_ICN_HSIO), >> + DEFINE_BUS_INTERCONNECT("PL301_HSIO", IMX8MM_ICN_HSIO, NULL, IMX8MM_ICN_NOC), >> + >> + /* Audio */ >> + DEFINE_BUS_MASTER("SDMA2", IMX8MM_ICM_SDMA2, IMX8MM_ICN_AUDIO), >> + DEFINE_BUS_MASTER("SDMA3", IMX8MM_ICM_SDMA3, IMX8MM_ICN_AUDIO), >> + DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MM_ICN_AUDIO, NULL, IMX8MM_ICN_MAIN), >> + >> + /* Ethernet */ >> + DEFINE_BUS_MASTER("ENET", IMX8MM_ICM_ENET, IMX8MM_ICN_ENET), >> + DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MM_ICN_ENET, NULL, IMX8MM_ICN_MAIN), >> + >> + /* Other */ >> + DEFINE_BUS_MASTER("SDMA1", IMX8MM_ICM_SDMA1, IMX8MM_ICN_MAIN), >> + DEFINE_BUS_MASTER("NAND", IMX8MM_ICM_NAND, IMX8MM_ICN_MAIN), >> + DEFINE_BUS_MASTER("USDHC1", IMX8MM_ICM_USDHC1, IMX8MM_ICN_MAIN), >> + DEFINE_BUS_MASTER("USDHC2", IMX8MM_ICM_USDHC2, IMX8MM_ICN_MAIN), >> + DEFINE_BUS_MASTER("USDHC3", IMX8MM_ICM_USDHC3, IMX8MM_ICN_MAIN), >> + DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MM_ICN_MAIN, NULL, >> + IMX8MM_ICN_NOC, IMX8MM_ICS_OCRAM), >> +}; >> + >> +static int imx8mm_icc_probe(struct platform_device *pdev) >> +{ >> + return imx_icc_register(pdev, nodes, ARRAY_SIZE(nodes)); >> +} >> + >> +static int imx8mm_icc_remove(struct platform_device *pdev) >> +{ >> + return imx_icc_unregister(pdev); >> +} >> + >> +static struct platform_driver imx8mm_icc_driver = { >> + .probe = imx8mm_icc_probe, >> + .remove = imx8mm_icc_remove, >> + .driver = { >> + .name = "imx8mm-interconnect", >> + }, >> +}; >> + >> +module_platform_driver(imx8mm_icc_driver); >> +MODULE_AUTHOR("Alexandre Bailon <abailon@baylibre.com>"); >> +MODULE_LICENSE("GPL v2"); >> +MODULE_ALIAS("platform:imx8mm-interconnect"); >> diff --git a/include/dt-bindings/interconnect/imx8mm.h b/include/dt-bindings/interconnect/imx8mm.h >> new file mode 100644 >> index 000000000000..5404f2af15c3 >> --- /dev/null >> +++ b/include/dt-bindings/interconnect/imx8mm.h >> @@ -0,0 +1,49 @@ >> +/* SPDX-License-Identifier: GPL-2.0 */ >> +/* >> + * Interconnect framework driver for i.MX SoC >> + * >> + * Copyright (c) 2019, BayLibre >> + * Author: Alexandre Bailon <abailon@baylibre.com> >> + */ >> + >> +#ifndef __IMX8MM_ICM_INTERCONNECT_IDS_H >> +#define __IMX8MM_ICM_INTERCONNECT_IDS_H > > Nit: Some people make this match the path, but it's up to you. OK >> + >> +#define IMX8MM_ICN_NOC 1 >> +#define IMX8MM_ICS_DRAM 2 >> +#define IMX8MM_ICS_OCRAM 3 >> +#define IMX8MM_ICM_A53 4 >> + >> +#define IMX8MM_ICM_VPU_H1 5 >> +#define IMX8MM_ICM_VPU_G1 6 >> +#define IMX8MM_ICM_VPU_G2 7 >> +#define IMX8MM_ICN_VIDEO 8 >> + >> +#define IMX8MM_ICM_GPU2D 9 >> +#define IMX8MM_ICM_GPU3D 10 >> +#define IMX8MM_ICN_GPU 11 >> + >> +#define IMX8MM_ICM_CSI 12 >> +#define IMX8MM_ICM_LCDIF 13 >> +#define IMX8MM_ICN_MIPI 14 >> + >> +#define IMX8MM_ICM_USB1 15 >> +#define IMX8MM_ICM_USB2 16 >> +#define IMX8MM_ICM_PCIE 17 >> +#define IMX8MM_ICN_HSIO 18 >> + >> +#define IMX8MM_ICM_SDMA2 19 >> +#define IMX8MM_ICM_SDMA3 20 >> +#define IMX8MM_ICN_AUDIO 21 >> + >> +#define IMX8MM_ICN_ENET 22 >> +#define IMX8MM_ICM_ENET 23 >> + >> +#define IMX8MM_ICN_MAIN 24 >> +#define IMX8MM_ICM_NAND 25 >> +#define IMX8MM_ICM_SDMA1 26 >> +#define IMX8MM_ICM_USDHC1 27 >> +#define IMX8MM_ICM_USDHC2 28 >> +#define IMX8MM_ICM_USDHC3 29 >> + >> +#endif /* __IMX8MM_ICM_INTERCONNECT_IDS_H */ >> > > Looks good! > > Thanks, > Georgi > >
diff --git a/drivers/interconnect/imx/Kconfig b/drivers/interconnect/imx/Kconfig index f39336f8d603..2cd4fad4976a 100644 --- a/drivers/interconnect/imx/Kconfig +++ b/drivers/interconnect/imx/Kconfig @@ -1,5 +1,9 @@ config INTERCONNECT_IMX tristate "i.MX interconnect drivers" depends on ARCH_MXC || COMPILE_TEST help Generic interconnect drivers for i.MX SOCs + +config INTERCONNECT_IMX8MM + tristate "i.MX8MM interconnect driver" + depends on INTERCONNECT_IMX diff --git a/drivers/interconnect/imx/Makefile b/drivers/interconnect/imx/Makefile index 86ae0bd28d8c..c234e5d3dfd1 100644 --- a/drivers/interconnect/imx/Makefile +++ b/drivers/interconnect/imx/Makefile @@ -1,3 +1,5 @@ imx-interconnect-objs := imx.o +imx8mm-interconnect-objs := imx8mm.o obj-$(CONFIG_INTERCONNECT_IMX) += imx-interconnect.o +obj-$(CONFIG_INTERCONNECT_IMX8MM) += imx8mm-interconnect.o diff --git a/drivers/interconnect/imx/imx8mm.c b/drivers/interconnect/imx/imx8mm.c new file mode 100644 index 000000000000..ee3783a98c01 --- /dev/null +++ b/drivers/interconnect/imx/imx8mm.c @@ -0,0 +1,108 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Interconnect framework driver for i.MX SoC + * + * Copyright (c) 2019, BayLibre + * Copyright (c) 2019, NXP + * Author: Alexandre Bailon <abailon@baylibre.com> + * Author: Leonard Crestez <leonard.crestez@nxp.com> + */ + +#include <linux/device.h> +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> + +#include <dt-bindings/interconnect/imx8mm.h> + +#include "imx.h" + +static const struct imx_icc_node_adj_desc imx8mm_dram_adj = { + .bw_mul = 1, + .bw_div = 16, + .phandle_name = "fsl,ddrc", +}; + +static const struct imx_icc_node_adj_desc imx8mm_noc_adj = { + .bw_mul = 1, + .bw_div = 16, + .main_noc = true, +}; + +/* + * Describe bus masters, slaves and connections between them + * + * This is a simplified subset of the bus diagram, there are several other + * PL301 nics which are skipped/merged into PL301_MAIN + */ +static struct imx_icc_node_desc nodes[] = { + DEFINE_BUS_INTERCONNECT("NOC", IMX8MM_ICN_NOC, &imx8mm_noc_adj, + IMX8MM_ICS_DRAM, IMX8MM_ICN_MAIN), + + DEFINE_BUS_SLAVE("DRAM", IMX8MM_ICS_DRAM, &imx8mm_dram_adj), + DEFINE_BUS_SLAVE("OCRAM", IMX8MM_ICS_OCRAM, NULL), + DEFINE_BUS_MASTER("A53", IMX8MM_ICM_A53, IMX8MM_ICN_NOC), + + /* VPUMIX */ + DEFINE_BUS_MASTER("VPU H1", IMX8MM_ICM_VPU_H1, IMX8MM_ICN_VIDEO), + DEFINE_BUS_MASTER("VPU G1", IMX8MM_ICM_VPU_G1, IMX8MM_ICN_VIDEO), + DEFINE_BUS_MASTER("VPU G2", IMX8MM_ICM_VPU_G2, IMX8MM_ICN_VIDEO), + DEFINE_BUS_INTERCONNECT("PL301_VIDEO", IMX8MM_ICN_VIDEO, NULL, IMX8MM_ICN_NOC), + + /* GPUMIX */ + DEFINE_BUS_MASTER("GPU 2D", IMX8MM_ICM_GPU2D, IMX8MM_ICN_GPU), + DEFINE_BUS_MASTER("GPU 3D", IMX8MM_ICM_GPU3D, IMX8MM_ICN_GPU), + DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MM_ICN_GPU, NULL, IMX8MM_ICN_NOC), + + /* DISPLAYMIX */ + DEFINE_BUS_MASTER("CSI", IMX8MM_ICM_CSI, IMX8MM_ICN_MIPI), + DEFINE_BUS_MASTER("LCDIF", IMX8MM_ICM_LCDIF, IMX8MM_ICN_MIPI), + DEFINE_BUS_INTERCONNECT("PL301_MIPI", IMX8MM_ICN_MIPI, NULL, IMX8MM_ICN_NOC), + + /* HSIO */ + DEFINE_BUS_MASTER("USB1", IMX8MM_ICM_USB1, IMX8MM_ICN_HSIO), + DEFINE_BUS_MASTER("USB2", IMX8MM_ICM_USB2, IMX8MM_ICN_HSIO), + DEFINE_BUS_MASTER("PCIE", IMX8MM_ICM_PCIE, IMX8MM_ICN_HSIO), + DEFINE_BUS_INTERCONNECT("PL301_HSIO", IMX8MM_ICN_HSIO, NULL, IMX8MM_ICN_NOC), + + /* Audio */ + DEFINE_BUS_MASTER("SDMA2", IMX8MM_ICM_SDMA2, IMX8MM_ICN_AUDIO), + DEFINE_BUS_MASTER("SDMA3", IMX8MM_ICM_SDMA3, IMX8MM_ICN_AUDIO), + DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MM_ICN_AUDIO, NULL, IMX8MM_ICN_MAIN), + + /* Ethernet */ + DEFINE_BUS_MASTER("ENET", IMX8MM_ICM_ENET, IMX8MM_ICN_ENET), + DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MM_ICN_ENET, NULL, IMX8MM_ICN_MAIN), + + /* Other */ + DEFINE_BUS_MASTER("SDMA1", IMX8MM_ICM_SDMA1, IMX8MM_ICN_MAIN), + DEFINE_BUS_MASTER("NAND", IMX8MM_ICM_NAND, IMX8MM_ICN_MAIN), + DEFINE_BUS_MASTER("USDHC1", IMX8MM_ICM_USDHC1, IMX8MM_ICN_MAIN), + DEFINE_BUS_MASTER("USDHC2", IMX8MM_ICM_USDHC2, IMX8MM_ICN_MAIN), + DEFINE_BUS_MASTER("USDHC3", IMX8MM_ICM_USDHC3, IMX8MM_ICN_MAIN), + DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MM_ICN_MAIN, NULL, + IMX8MM_ICN_NOC, IMX8MM_ICS_OCRAM), +}; + +static int imx8mm_icc_probe(struct platform_device *pdev) +{ + return imx_icc_register(pdev, nodes, ARRAY_SIZE(nodes)); +} + +static int imx8mm_icc_remove(struct platform_device *pdev) +{ + return imx_icc_unregister(pdev); +} + +static struct platform_driver imx8mm_icc_driver = { + .probe = imx8mm_icc_probe, + .remove = imx8mm_icc_remove, + .driver = { + .name = "imx8mm-interconnect", + }, +}; + +module_platform_driver(imx8mm_icc_driver); +MODULE_AUTHOR("Alexandre Bailon <abailon@baylibre.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:imx8mm-interconnect"); diff --git a/include/dt-bindings/interconnect/imx8mm.h b/include/dt-bindings/interconnect/imx8mm.h new file mode 100644 index 000000000000..5404f2af15c3 --- /dev/null +++ b/include/dt-bindings/interconnect/imx8mm.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Interconnect framework driver for i.MX SoC + * + * Copyright (c) 2019, BayLibre + * Author: Alexandre Bailon <abailon@baylibre.com> + */ + +#ifndef __IMX8MM_ICM_INTERCONNECT_IDS_H +#define __IMX8MM_ICM_INTERCONNECT_IDS_H + +#define IMX8MM_ICN_NOC 1 +#define IMX8MM_ICS_DRAM 2 +#define IMX8MM_ICS_OCRAM 3 +#define IMX8MM_ICM_A53 4 + +#define IMX8MM_ICM_VPU_H1 5 +#define IMX8MM_ICM_VPU_G1 6 +#define IMX8MM_ICM_VPU_G2 7 +#define IMX8MM_ICN_VIDEO 8 + +#define IMX8MM_ICM_GPU2D 9 +#define IMX8MM_ICM_GPU3D 10 +#define IMX8MM_ICN_GPU 11 + +#define IMX8MM_ICM_CSI 12 +#define IMX8MM_ICM_LCDIF 13 +#define IMX8MM_ICN_MIPI 14 + +#define IMX8MM_ICM_USB1 15 +#define IMX8MM_ICM_USB2 16 +#define IMX8MM_ICM_PCIE 17 +#define IMX8MM_ICN_HSIO 18 + +#define IMX8MM_ICM_SDMA2 19 +#define IMX8MM_ICM_SDMA3 20 +#define IMX8MM_ICN_AUDIO 21 + +#define IMX8MM_ICN_ENET 22 +#define IMX8MM_ICM_ENET 23 + +#define IMX8MM_ICN_MAIN 24 +#define IMX8MM_ICM_NAND 25 +#define IMX8MM_ICM_SDMA1 26 +#define IMX8MM_ICM_USDHC1 27 +#define IMX8MM_ICM_USDHC2 28 +#define IMX8MM_ICM_USDHC3 29 + +#endif /* __IMX8MM_ICM_INTERCONNECT_IDS_H */