I have to configure the system (u-boot, kernel) and create the RIO
driver. Could you advise me how to fix my current problem?
a) Kernel log:
...
Setting up RapidIO peer-to-peer network /[EMAIL PROTECTED]/rapidi0
RIO: Of-device full name /[EMAIL PROTECTED]/[EMAIL PROTECTED]
RIO: LAW start 0x00000000c0000000, size 0x0000000020000000.
RIO: Regs start 0xe00c0000 size 0x00020000
[there are not any next messages, the board hung up]
b) Corresponding Source Code
The kernel hung up in the file
linux-2.6.23/arch/powerpc/sysdev/fsl_rio.c
Function fsl_rio_setup() is executed but it hung on in_be32(regs_win +
RIO_CCSR);
c) u-boot configuration
#define CONFIG_RIO 1
#define CFG_RIO_MEM_BASE 0xC0000000
#define CFG_RIO_MEM_SIZE 0x20000000 /* 512M */
d) Device Tree Source
[EMAIL PROTECTED] {
compatible = "fsl,rapidio-delta";
#address-cells = <2>;
#size-cells = <2>;
reg = <c0000 20000>;
ranges = <0 0 c0000000 20000000>;
interrupt-parent = <&mpic>;
interrupts = <30 2 31 2 32 2 35 2 36 2 37 2 38 2>;
};
If you can not advise me on technical aspects, tell me please what I
should read to understand initialization of RIO in the kernel.
Thanks,
Adam
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