linux/drivers/of/address.c

913 lines
22 KiB

of: Allow busses with #size-cells=0 It's quite legitimate for a DT node to specify #size-cells=0. One example is a node that's used to collect a number of non-memory-mapped devices. In that scenario, there may be multiple child nodes with the same name (type) thus necessitating the use of unit addresses in node names, and reg properties: / { regulators { compatible = "simple-bus"; #address-cells = <1>; #size-cells = <0>; regulator@0 { compatible = "regulator-fixed"; reg = <0>; ... }; regulator@1 { compatible = "regulator-fixed"; reg = <1>; ... }; ... }; }; However, #size-cells=0 prevents translation of reg property values into the parent node's address space. In turn, this triggers the kernel to emit error messages during boot, such as: prom_parse: Bad cell count for /regulators/regulator@0 To prevent printing these error messages for legitimate DT content, a number of changes are made: 1) of_get_address()/of_get_pci_address() are modified only to validate the value of #address-cells, and not #size-cells. 2) of_can_translate_address() is added to indicate whether address translation is possible. 3) of_device_make_bus_id() is modified to name devices based on the translated address only where possible, and otherwise fall back to using the (first cell of the) raw untranslated address. 4) of_device_alloc() is modified to create memory resources for a device only if the address can be translated into the CPU's address space. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-07-25 17:34:37 -06:00
of/address: sparse fixes drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:66:29: expected restricted __be32 const [usertype] *cell drivers/of/address.c:66:29: got unsigned int [usertype] *addr drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:87:32: expected restricted __be32 const [usertype] *cell drivers/of/address.c:87:32: got unsigned int [usertype] *addr drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types) drivers/of/address.c:91:30: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:91:30: got restricted __be32 [usertype] <noident> drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types) drivers/of/address.c:92:22: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:92:22: got restricted __be32 [usertype] <noident> drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:147:35: expected restricted __be32 const [usertype] *addr drivers/of/address.c:147:35: got unsigned int [usertype] *addr drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:157:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:157:34: got unsigned int [usertype] * drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:262:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:262:34: got unsigned int [usertype] * drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:372:41: expected restricted __be32 const [usertype] *cell drivers/of/address.c:372:41: got unsigned int [usertype] *addr drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:395:53: expected restricted __be32 const [usertype] *addr drivers/of/address.c:395:53: got unsigned int [usertype] *addr drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:443:50: expected restricted __be32 const [usertype] *addr drivers/of/address.c:443:50: got unsigned int *<noident> drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:455:49: expected restricted __be32 const [usertype] *cell drivers/of/address.c:455:49: got unsigned int *<noident> drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:480:60: expected restricted __be32 const [usertype] *addr drivers/of/address.c:480:60: got unsigned int *<noident> drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static? drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-10-08 19:41:58 -05:00
of/address: sparse fixes drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:66:29: expected restricted __be32 const [usertype] *cell drivers/of/address.c:66:29: got unsigned int [usertype] *addr drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:87:32: expected restricted __be32 const [usertype] *cell drivers/of/address.c:87:32: got unsigned int [usertype] *addr drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types) drivers/of/address.c:91:30: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:91:30: got restricted __be32 [usertype] <noident> drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types) drivers/of/address.c:92:22: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:92:22: got restricted __be32 [usertype] <noident> drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:147:35: expected restricted __be32 const [usertype] *addr drivers/of/address.c:147:35: got unsigned int [usertype] *addr drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:157:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:157:34: got unsigned int [usertype] * drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:262:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:262:34: got unsigned int [usertype] * drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:372:41: expected restricted __be32 const [usertype] *cell drivers/of/address.c:372:41: got unsigned int [usertype] *addr drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:395:53: expected restricted __be32 const [usertype] *addr drivers/of/address.c:395:53: got unsigned int [usertype] *addr drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:443:50: expected restricted __be32 const [usertype] *addr drivers/of/address.c:443:50: got unsigned int *<noident> drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:455:49: expected restricted __be32 const [usertype] *cell drivers/of/address.c:455:49: got unsigned int *<noident> drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:480:60: expected restricted __be32 const [usertype] *addr drivers/of/address.c:480:60: got unsigned int *<noident> drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static? drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-10-08 19:41:58 -05:00
of/address: sparse fixes drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:66:29: expected restricted __be32 const [usertype] *cell drivers/of/address.c:66:29: got unsigned int [usertype] *addr drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:87:32: expected restricted __be32 const [usertype] *cell drivers/of/address.c:87:32: got unsigned int [usertype] *addr drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types) drivers/of/address.c:91:30: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:91:30: got restricted __be32 [usertype] <noident> drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types) drivers/of/address.c:92:22: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:92:22: got restricted __be32 [usertype] <noident> drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:147:35: expected restricted __be32 const [usertype] *addr drivers/of/address.c:147:35: got unsigned int [usertype] *addr drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:157:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:157:34: got unsigned int [usertype] * drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:262:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:262:34: got unsigned int [usertype] * drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:372:41: expected restricted __be32 const [usertype] *cell drivers/of/address.c:372:41: got unsigned int [usertype] *addr drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:395:53: expected restricted __be32 const [usertype] *addr drivers/of/address.c:395:53: got unsigned int [usertype] *addr drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:443:50: expected restricted __be32 const [usertype] *addr drivers/of/address.c:443:50: got unsigned int *<noident> drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:455:49: expected restricted __be32 const [usertype] *cell drivers/of/address.c:455:49: got unsigned int *<noident> drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:480:60: expected restricted __be32 const [usertype] *addr drivers/of/address.c:480:60: got unsigned int *<noident> drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static? drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-10-08 19:41:58 -05:00
of/address: sparse fixes drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:66:29: expected restricted __be32 const [usertype] *cell drivers/of/address.c:66:29: got unsigned int [usertype] *addr drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:87:32: expected restricted __be32 const [usertype] *cell drivers/of/address.c:87:32: got unsigned int [usertype] *addr drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types) drivers/of/address.c:91:30: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:91:30: got restricted __be32 [usertype] <noident> drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types) drivers/of/address.c:92:22: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:92:22: got restricted __be32 [usertype] <noident> drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:147:35: expected restricted __be32 const [usertype] *addr drivers/of/address.c:147:35: got unsigned int [usertype] *addr drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:157:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:157:34: got unsigned int [usertype] * drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:262:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:262:34: got unsigned int [usertype] * drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:372:41: expected restricted __be32 const [usertype] *cell drivers/of/address.c:372:41: got unsigned int [usertype] *addr drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:395:53: expected restricted __be32 const [usertype] *addr drivers/of/address.c:395:53: got unsigned int [usertype] *addr drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:443:50: expected restricted __be32 const [usertype] *addr drivers/of/address.c:443:50: got unsigned int *<noident> drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:455:49: expected restricted __be32 const [usertype] *cell drivers/of/address.c:455:49: got unsigned int *<noident> drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:480:60: expected restricted __be32 const [usertype] *addr drivers/of/address.c:480:60: got unsigned int *<noident> drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static? drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-10-08 19:41:58 -05:00
of/address: sparse fixes drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:66:29: expected restricted __be32 const [usertype] *cell drivers/of/address.c:66:29: got unsigned int [usertype] *addr drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:87:32: expected restricted __be32 const [usertype] *cell drivers/of/address.c:87:32: got unsigned int [usertype] *addr drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types) drivers/of/address.c:91:30: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:91:30: got restricted __be32 [usertype] <noident> drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types) drivers/of/address.c:92:22: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:92:22: got restricted __be32 [usertype] <noident> drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:147:35: expected restricted __be32 const [usertype] *addr drivers/of/address.c:147:35: got unsigned int [usertype] *addr drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:157:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:157:34: got unsigned int [usertype] * drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:262:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:262:34: got unsigned int [usertype] * drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:372:41: expected restricted __be32 const [usertype] *cell drivers/of/address.c:372:41: got unsigned int [usertype] *addr drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:395:53: expected restricted __be32 const [usertype] *addr drivers/of/address.c:395:53: got unsigned int [usertype] *addr drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:443:50: expected restricted __be32 const [usertype] *addr drivers/of/address.c:443:50: got unsigned int *<noident> drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:455:49: expected restricted __be32 const [usertype] *cell drivers/of/address.c:455:49: got unsigned int *<noident> drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:480:60: expected restricted __be32 const [usertype] *addr drivers/of/address.c:480:60: got unsigned int *<noident> drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static? drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-10-08 19:41:58 -05:00
of/address: sparse fixes drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:66:29: expected restricted __be32 const [usertype] *cell drivers/of/address.c:66:29: got unsigned int [usertype] *addr drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:87:32: expected restricted __be32 const [usertype] *cell drivers/of/address.c:87:32: got unsigned int [usertype] *addr drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types) drivers/of/address.c:91:30: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:91:30: got restricted __be32 [usertype] <noident> drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types) drivers/of/address.c:92:22: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:92:22: got restricted __be32 [usertype] <noident> drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:147:35: expected restricted __be32 const [usertype] *addr drivers/of/address.c:147:35: got unsigned int [usertype] *addr drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:157:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:157:34: got unsigned int [usertype] * drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:262:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:262:34: got unsigned int [usertype] * drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:372:41: expected restricted __be32 const [usertype] *cell drivers/of/address.c:372:41: got unsigned int [usertype] *addr drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:395:53: expected restricted __be32 const [usertype] *addr drivers/of/address.c:395:53: got unsigned int [usertype] *addr drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:443:50: expected restricted __be32 const [usertype] *addr drivers/of/address.c:443:50: got unsigned int *<noident> drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:455:49: expected restricted __be32 const [usertype] *cell drivers/of/address.c:455:49: got unsigned int *<noident> drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:480:60: expected restricted __be32 const [usertype] *addr drivers/of/address.c:480:60: got unsigned int *<noident> drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static? drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-10-08 19:41:58 -05:00
of: Allow busses with #size-cells=0 It's quite legitimate for a DT node to specify #size-cells=0. One example is a node that's used to collect a number of non-memory-mapped devices. In that scenario, there may be multiple child nodes with the same name (type) thus necessitating the use of unit addresses in node names, and reg properties: / { regulators { compatible = "simple-bus"; #address-cells = <1>; #size-cells = <0>; regulator@0 { compatible = "regulator-fixed"; reg = <0>; ... }; regulator@1 { compatible = "regulator-fixed"; reg = <1>; ... }; ... }; }; However, #size-cells=0 prevents translation of reg property values into the parent node's address space. In turn, this triggers the kernel to emit error messages during boot, such as: prom_parse: Bad cell count for /regulators/regulator@0 To prevent printing these error messages for legitimate DT content, a number of changes are made: 1) of_get_address()/of_get_pci_address() are modified only to validate the value of #address-cells, and not #size-cells. 2) of_can_translate_address() is added to indicate whether address translation is possible. 3) of_device_make_bus_id() is modified to name devices based on the translated address only where possible, and otherwise fall back to using the (first cell of the) raw untranslated address. 4) of_device_alloc() is modified to create memory resources for a device only if the address can be translated into the CPU's address space. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-07-25 17:34:37 -06:00
of/pci: Provide support for parsing PCI DT ranges property This patch factors out common implementation patterns to reduce overall kernel code and provide a means for host bridge drivers to directly obtain struct resources from the DT's ranges property without relying on architecture specific DT handling. This will make it easier to write archiecture independent host bridge drivers and mitigate against further duplication of DT parsing code. This patch can be used in the following way: struct of_pci_range_parser parser; struct of_pci_range range; if (of_pci_range_parser_init(&parser, np)) ; //no ranges property for_each_of_pci_range(&parser, &range) { /* directly access properties of the address range, e.g.: range.pci_space, range.pci_addr, range.cpu_addr, range.size, range.flags alternatively obtain a struct resource, e.g.: struct resource res; of_pci_range_to_resource(&range, np, &res); */ } Additionally the implementation takes care of adjacent ranges and merges them into a single range (as was the case with powerpc and microblaze). Signed-off-by: Andrew Murray <Andrew.Murray@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-05-16 17:55:17 +02:00
of/pci: Provide support for parsing PCI DT ranges property This patch factors out common implementation patterns to reduce overall kernel code and provide a means for host bridge drivers to directly obtain struct resources from the DT's ranges property without relying on architecture specific DT handling. This will make it easier to write archiecture independent host bridge drivers and mitigate against further duplication of DT parsing code. This patch can be used in the following way: struct of_pci_range_parser parser; struct of_pci_range range; if (of_pci_range_parser_init(&parser, np)) ; //no ranges property for_each_of_pci_range(&parser, &range) { /* directly access properties of the address range, e.g.: range.pci_space, range.pci_addr, range.cpu_addr, range.size, range.flags alternatively obtain a struct resource, e.g.: struct resource res; of_pci_range_to_resource(&range, np, &res); */ } Additionally the implementation takes care of adjacent ranges and merges them into a single range (as was the case with powerpc and microblaze). Signed-off-by: Andrew Murray <Andrew.Murray@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-05-16 17:55:17 +02:00
of/pci: Provide support for parsing PCI DT ranges property This patch factors out common implementation patterns to reduce overall kernel code and provide a means for host bridge drivers to directly obtain struct resources from the DT's ranges property without relying on architecture specific DT handling. This will make it easier to write archiecture independent host bridge drivers and mitigate against further duplication of DT parsing code. This patch can be used in the following way: struct of_pci_range_parser parser; struct of_pci_range range; if (of_pci_range_parser_init(&parser, np)) ; //no ranges property for_each_of_pci_range(&parser, &range) { /* directly access properties of the address range, e.g.: range.pci_space, range.pci_addr, range.cpu_addr, range.size, range.flags alternatively obtain a struct resource, e.g.: struct resource res; of_pci_range_to_resource(&range, np, &res); */ } Additionally the implementation takes care of adjacent ranges and merges them into a single range (as was the case with powerpc and microblaze). Signed-off-by: Andrew Murray <Andrew.Murray@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-05-16 17:55:17 +02:00
of/address: sparse fixes drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:66:29: expected restricted __be32 const [usertype] *cell drivers/of/address.c:66:29: got unsigned int [usertype] *addr drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:87:32: expected restricted __be32 const [usertype] *cell drivers/of/address.c:87:32: got unsigned int [usertype] *addr drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types) drivers/of/address.c:91:30: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:91:30: got restricted __be32 [usertype] <noident> drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types) drivers/of/address.c:92:22: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:92:22: got restricted __be32 [usertype] <noident> drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:147:35: expected restricted __be32 const [usertype] *addr drivers/of/address.c:147:35: got unsigned int [usertype] *addr drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:157:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:157:34: got unsigned int [usertype] * drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:262:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:262:34: got unsigned int [usertype] * drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:372:41: expected restricted __be32 const [usertype] *cell drivers/of/address.c:372:41: got unsigned int [usertype] *addr drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:395:53: expected restricted __be32 const [usertype] *addr drivers/of/address.c:395:53: got unsigned int [usertype] *addr drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:443:50: expected restricted __be32 const [usertype] *addr drivers/of/address.c:443:50: got unsigned int *<noident> drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:455:49: expected restricted __be32 const [usertype] *cell drivers/of/address.c:455:49: got unsigned int *<noident> drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:480:60: expected restricted __be32 const [usertype] *addr drivers/of/address.c:480:60: got unsigned int *<noident> drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static? drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-10-08 19:41:58 -05:00
of/address: sparse fixes drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:66:29: expected restricted __be32 const [usertype] *cell drivers/of/address.c:66:29: got unsigned int [usertype] *addr drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:87:32: expected restricted __be32 const [usertype] *cell drivers/of/address.c:87:32: got unsigned int [usertype] *addr drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types) drivers/of/address.c:91:30: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:91:30: got restricted __be32 [usertype] <noident> drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types) drivers/of/address.c:92:22: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:92:22: got restricted __be32 [usertype] <noident> drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:147:35: expected restricted __be32 const [usertype] *addr drivers/of/address.c:147:35: got unsigned int [usertype] *addr drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:157:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:157:34: got unsigned int [usertype] * drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:262:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:262:34: got unsigned int [usertype] * drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:372:41: expected restricted __be32 const [usertype] *cell drivers/of/address.c:372:41: got unsigned int [usertype] *addr drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:395:53: expected restricted __be32 const [usertype] *addr drivers/of/address.c:395:53: got unsigned int [usertype] *addr drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:443:50: expected restricted __be32 const [usertype] *addr drivers/of/address.c:443:50: got unsigned int *<noident> drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:455:49: expected restricted __be32 const [usertype] *cell drivers/of/address.c:455:49: got unsigned int *<noident> drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:480:60: expected restricted __be32 const [usertype] *addr drivers/of/address.c:480:60: got unsigned int *<noident> drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static? drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-10-08 19:41:58 -05:00
of/address: sparse fixes drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:66:29: expected restricted __be32 const [usertype] *cell drivers/of/address.c:66:29: got unsigned int [usertype] *addr drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:87:32: expected restricted __be32 const [usertype] *cell drivers/of/address.c:87:32: got unsigned int [usertype] *addr drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types) drivers/of/address.c:91:30: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:91:30: got restricted __be32 [usertype] <noident> drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types) drivers/of/address.c:92:22: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:92:22: got restricted __be32 [usertype] <noident> drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:147:35: expected restricted __be32 const [usertype] *addr drivers/of/address.c:147:35: got unsigned int [usertype] *addr drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:157:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:157:34: got unsigned int [usertype] * drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:262:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:262:34: got unsigned int [usertype] * drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:372:41: expected restricted __be32 const [usertype] *cell drivers/of/address.c:372:41: got unsigned int [usertype] *addr drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:395:53: expected restricted __be32 const [usertype] *addr drivers/of/address.c:395:53: got unsigned int [usertype] *addr drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:443:50: expected restricted __be32 const [usertype] *addr drivers/of/address.c:443:50: got unsigned int *<noident> drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:455:49: expected restricted __be32 const [usertype] *cell drivers/of/address.c:455:49: got unsigned int *<noident> drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:480:60: expected restricted __be32 const [usertype] *addr drivers/of/address.c:480:60: got unsigned int *<noident> drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static? drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-10-08 19:41:58 -05:00
of/address: sparse fixes drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:66:29: expected restricted __be32 const [usertype] *cell drivers/of/address.c:66:29: got unsigned int [usertype] *addr drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:87:32: expected restricted __be32 const [usertype] *cell drivers/of/address.c:87:32: got unsigned int [usertype] *addr drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types) drivers/of/address.c:91:30: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:91:30: got restricted __be32 [usertype] <noident> drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types) drivers/of/address.c:92:22: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:92:22: got restricted __be32 [usertype] <noident> drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:147:35: expected restricted __be32 const [usertype] *addr drivers/of/address.c:147:35: got unsigned int [usertype] *addr drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:157:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:157:34: got unsigned int [usertype] * drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:262:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:262:34: got unsigned int [usertype] * drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:372:41: expected restricted __be32 const [usertype] *cell drivers/of/address.c:372:41: got unsigned int [usertype] *addr drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:395:53: expected restricted __be32 const [usertype] *addr drivers/of/address.c:395:53: got unsigned int [usertype] *addr drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:443:50: expected restricted __be32 const [usertype] *addr drivers/of/address.c:443:50: got unsigned int *<noident> drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:455:49: expected restricted __be32 const [usertype] *cell drivers/of/address.c:455:49: got unsigned int *<noident> drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:480:60: expected restricted __be32 const [usertype] *addr drivers/of/address.c:480:60: got unsigned int *<noident> drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static? drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-10-08 19:41:58 -05:00
of/address: sparse fixes drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:66:29: expected restricted __be32 const [usertype] *cell drivers/of/address.c:66:29: got unsigned int [usertype] *addr drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:87:32: expected restricted __be32 const [usertype] *cell drivers/of/address.c:87:32: got unsigned int [usertype] *addr drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types) drivers/of/address.c:91:30: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:91:30: got restricted __be32 [usertype] <noident> drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types) drivers/of/address.c:92:22: expected unsigned int [unsigned] [usertype] <noident> drivers/of/address.c:92:22: got restricted __be32 [usertype] <noident> drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:147:35: expected restricted __be32 const [usertype] *addr drivers/of/address.c:147:35: got unsigned int [usertype] *addr drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:157:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:157:34: got unsigned int [usertype] * drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:262:34: expected restricted __be32 const [usertype] *cell drivers/of/address.c:262:34: got unsigned int [usertype] * drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:372:41: expected restricted __be32 const [usertype] *cell drivers/of/address.c:372:41: got unsigned int [usertype] *addr drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:395:53: expected restricted __be32 const [usertype] *addr drivers/of/address.c:395:53: got unsigned int [usertype] *addr drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:443:50: expected restricted __be32 const [usertype] *addr drivers/of/address.c:443:50: got unsigned int *<noident> drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types) drivers/of/address.c:455:49: expected restricted __be32 const [usertype] *cell drivers/of/address.c:455:49: got unsigned int *<noident> drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types) drivers/of/address.c:480:60: expected restricted __be32 const [usertype] *addr drivers/of/address.c:480:60: got unsigned int *<noident> drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static? drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-10-08 19:41:58 -05:00
of: Allow busses with #size-cells=0 It's quite legitimate for a DT node to specify #size-cells=0. One example is a node that's used to collect a number of non-memory-mapped devices. In that scenario, there may be multiple child nodes with the same name (type) thus necessitating the use of unit addresses in node names, and reg properties: / { regulators { compatible = "simple-bus"; #address-cells = <1>; #size-cells = <0>; regulator@0 { compatible = "regulator-fixed"; reg = <0>; ... }; regulator@1 { compatible = "regulator-fixed"; reg = <1>; ... }; ... }; }; However, #size-cells=0 prevents translation of reg property values into the parent node's address space. In turn, this triggers the kernel to emit error messages during boot, such as: prom_parse: Bad cell count for /regulators/regulator@0 To prevent printing these error messages for legitimate DT content, a number of changes are made: 1) of_get_address()/of_get_pci_address() are modified only to validate the value of #address-cells, and not #size-cells. 2) of_can_translate_address() is added to indicate whether address translation is possible. 3) of_device_make_bus_id() is modified to name devices based on the translated address only where possible, and otherwise fall back to using the (first cell of the) raw untranslated address. 4) of_device_alloc() is modified to create memory resources for a device only if the address can be translated into the CPU's address space. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-07-25 17:34:37 -06:00
Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into next Pull ARM updates from Russell King: - Major clean-up of the L2 cache support code. The existing mess was becoming rather unmaintainable through all the additions that others have done over time. This turns it into a much nicer structure, and implements a few performance improvements as well. - Clean up some of the CP15 control register tweaks for alignment support, moving some code and data into alignment.c - DMA properties for ARM, from Santosh and reviewed by DT people. This adds DT properties to specify bus translations we can't discover automatically, and to indicate whether devices are coherent. - Hibernation support for ARM - Make ftrace work with read-only text in modules - add suspend support for PJ4B CPUs - rework interrupt masking for undefined instruction handling, which allows us to enable interrupts earlier in the handling of these exceptions. - support for big endian page tables - fix stacktrace support to exclude stacktrace functions from the trace, and add save_stack_trace_regs() implementation so that kprobes can record stack traces. - Add support for the Cortex-A17 CPU. - Remove last vestiges of ARM710 support. - Removal of ARM "meminfo" structure, finally converting us solely to memblock to handle the early memory initialisation. * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (142 commits) ARM: ensure C page table setup code follows assembly code (part II) ARM: ensure C page table setup code follows assembly code ARM: consolidate last remaining open-coded alignment trap enable ARM: remove global cr_no_alignment ARM: remove CPU_CP15 conditional from alignment.c ARM: remove unused adjust_cr() function ARM: move "noalign" command line option to alignment.c ARM: provide common method to clear bits in CPU control register ARM: 8025/1: Get rid of meminfo ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type ARM: 8066/1: correction for ARM patch 8031/2 ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation ARM: 8065/1: remove last use of CONFIG_CPU_ARM710 ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction ARM: 8047/1: rwsem: use asm-generic rwsem implementation ARM: l2c: trial at enabling some Cortex-A9 optimisations ARM: l2c: add warnings for stuff modifying aux_ctrl register values ARM: l2c: print a warning with L2C-310 caches if the cache size is modified ARM: l2c: remove old .set_debug method ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this ...
2014-06-05 15:57:04 -07:00