diff options
| author | Georgii Staroselskii <georgii.staroselskii@emlid.com> | 2018-09-11 13:31:06 +0300 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2018-09-17 14:34:15 +0800 |
| commit | 224742a390f48c64aac75095c7ac251077f07bdb (patch) | |
| tree | bdf59557fae58b19e4e267d666e971612b405cce /arch/x86/include/asm/scu.h | |
| parent | 41f4e4302fbaa426f0ca34720f438f74d3304e79 (diff) | |
| download | u-boot-224742a390f48c64aac75095c7ac251077f07bdb.tar.gz u-boot-224742a390f48c64aac75095c7ac251077f07bdb.tar.xz u-boot-224742a390f48c64aac75095c7ac251077f07bdb.zip | |
x86: cpu: introduce scu_ipc_raw_command()
This interface will be used to configure properly some pins on
Merrifield that are shared with SCU.
scu_ipc_raw_command() writes SPTR and DPTR registers before sending
a command to SCU.
This code has been ported from Linux work done by Andy Shevchenko.
Signed-off-by: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/x86/include/asm/scu.h')
| -rw-r--r-- | arch/x86/include/asm/scu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/include/asm/scu.h b/arch/x86/include/asm/scu.h index 7ce5824167..f5ec5a19d9 100644 --- a/arch/x86/include/asm/scu.h +++ b/arch/x86/include/asm/scu.h @@ -6,6 +6,8 @@ #define _X86_ASM_SCU_IPC_H_ /* IPC defines the following message types */ +#define IPCMSG_INDIRECT_READ 0x02 +#define IPCMSG_INDIRECT_WRITE 0x05 #define IPCMSG_WARM_RESET 0xf0 #define IPCMSG_COLD_RESET 0xf1 #define IPCMSG_SOFT_RESET 0xf2 @@ -23,5 +25,7 @@ struct ipc_ifwi_version { /* Issue commands to the SCU with or without data */ int scu_ipc_simple_command(u32 cmd, u32 sub); int scu_ipc_command(u32 cmd, u32 sub, u32 *in, int inlen, u32 *out, int outlen); +int scu_ipc_raw_command(u32 cmd, u32 sub, u32 *in, int inlen, u32 *out, + int outlen, u32 dptr, u32 sptr); #endif /* _X86_ASM_SCU_IPC_H_ */ |