diff options
Diffstat (limited to 'target/linux/brcm63xx')
| -rw-r--r-- | target/linux/brcm63xx/patches-2.6.25/500-bcm96345_fixes.patch | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-2.6.25/500-bcm96345_fixes.patch b/target/linux/brcm63xx/patches-2.6.25/500-bcm96345_fixes.patch new file mode 100644 index 0000000000..2aebb29291 --- /dev/null +++ b/target/linux/brcm63xx/patches-2.6.25/500-bcm96345_fixes.patch @@ -0,0 +1,126 @@ +From d1259cf42ce84246c695f06b44d58e3aca0a480b Mon Sep 17 00:00:00 2001 +From: Axel Gembe <ago@bastart.eu.org> +Date: Sat, 17 May 2008 14:59:35 +0200 +Subject: [PATCH] bcm96345: correct some 6345 specific stuff + +This fixes some problems with the 6345 support and adds a macro for CPU +identification that is easier on the eyes. The first thing it does is to not +initialize MPI on the 6345 as it does not have PCI. The second thing it does is +to use a static value for the CPU frequency of the 6345 chip to provide an +accurate timer. + +Signed-off-by: Axel Gembe <ago@bastart.eu.org> +--- + arch/mips/bcm963xx/setup.c | 8 ++++++-- + arch/mips/bcm963xx/time.c | 5 ++++- + arch/mips/pci/pci-bcm96348.c | 21 +++++++++++++-------- + include/asm-mips/mach-bcm963xx/board.h | 2 ++ + 4 files changed, 25 insertions(+), 11 deletions(-) + +diff --git a/arch/mips/bcm963xx/setup.c b/arch/mips/bcm963xx/setup.c +index 982cba0..c12c9c3 100644 +--- a/arch/mips/bcm963xx/setup.c ++++ b/arch/mips/bcm963xx/setup.c +@@ -43,6 +43,7 @@ + #include <asm/bootinfo.h> + #include <asm/cpu.h> + #include <asm/mach-bcm963xx/bootloaders.h> ++#include <asm/mach-bcm963xx/board.h> + + extern void brcm_time_init(void); + extern int boot_loader_type; +@@ -465,6 +466,9 @@ void __init plat_mem_setup(void) + _machine_halt = brcm_machine_halt; + pm_power_off = brcm_machine_halt; + +- /* mpi initialization */ +- mpi_init(); ++ /* BCM96345 has no MPI */ ++ if (!ISBCM(0x6345)) { ++ /* mpi initialization */ ++ mpi_init(); ++ } + } +diff --git a/arch/mips/bcm963xx/time.c b/arch/mips/bcm963xx/time.c +index 75f751a..22ad56d 100644 +--- a/arch/mips/bcm963xx/time.c ++++ b/arch/mips/bcm963xx/time.c +@@ -39,6 +39,8 @@ + #include <6348_intr.h> + #include <bcm_map_part.h> + #include <bcm_intr.h> ++#include <asm/mach-bcm963xx/board.h> ++ + + /* + * calculateCpuSpeed() +@@ -62,11 +64,12 @@ static inline unsigned long __init calculateCpuSpeed(void) + } + + ++#define BCM96345_CPU_CLOCK 140000000 + void __init plat_time_init(void) + { + unsigned long cpu_clock; + +- cpu_clock = calculateCpuSpeed(); ++ cpu_clock = ISBCM(0x6345) ? BCM96345_CPU_CLOCK : calculateCpuSpeed(); + + printk("CPU frequency %lu.%02lu MHz\n", cpu_clock / 1000000, + (cpu_clock % 1000000) * 100 / 1000000); +diff --git a/arch/mips/pci/pci-bcm96348.c b/arch/mips/pci/pci-bcm96348.c +index bea3b7b..1e82283 100644 +--- a/arch/mips/pci/pci-bcm96348.c ++++ b/arch/mips/pci/pci-bcm96348.c +@@ -21,6 +21,8 @@ + #include <linux/kernel.h> + #include <linux/init.h> + ++#include <asm/mach-bcm963xx/6348_map_part.h> ++#include <asm/mach-bcm963xx/board.h> + #include <bcmpci.h> + + static struct resource bcm_pci_io_resource = { +@@ -47,16 +49,19 @@ struct pci_controller bcm96348_controller = { + + static __init int bcm96348_pci_init(void) + { +- /* Avoid ISA compat ranges. */ +- PCIBIOS_MIN_IO = 0x00000000; +- PCIBIOS_MIN_MEM = 0x00000000; ++ if (!ISBCM(0x6345)) { ++ /* Avoid ISA compat ranges. */ ++ PCIBIOS_MIN_IO = 0x00000000; ++ PCIBIOS_MIN_MEM = 0x00000000; + +- /* Set I/O resource limits. */ +- ioport_resource.end = 0x1fffffff; +- iomem_resource.end = 0xffffffff; ++ /* Set I/O resource limits. */ ++ ioport_resource.end = 0x1fffffff; ++ iomem_resource.end = 0xffffffff; + +- register_pci_controller(&bcm96348_controller); +- return 0; ++ register_pci_controller(&bcm96348_controller); ++ } ++ ++ return 0; + } + + arch_initcall(bcm96348_pci_init); +diff --git a/include/asm-mips/mach-bcm963xx/board.h b/include/asm-mips/mach-bcm963xx/board.h +index e674cb1..73fa924 100644 +--- a/include/asm-mips/mach-bcm963xx/board.h ++++ b/include/asm-mips/mach-bcm963xx/board.h +@@ -369,5 +369,7 @@ void kerSysWakeupMonitorTask( void ); + + extern int boot_loader_type; + ++#define ISBCM(x) (((PERF->RevID & 0xFFFF0000) >> 16) == x) ++ + #endif /* _BOARD_H */ + +-- +1.5.5.1 + |