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| author | Kokoris, Ioannis <ioannis.kokoris@siemens-enterprise.com> | 2011-11-11 20:05:11 +0400 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2012-07-10 16:08:58 +0400 |
| commit | e65650e6c3eb67226eda80a21f62b7aa145878f4 (patch) | |
| tree | 9fe3c6ecf29385a4890c83724ef5be42b1e0328d | |
| parent | 1f0e90ad7a3b6f9f8a0598ed30f4e9c7dd9ff82e (diff) | |
| download | linux-e65650e6c3eb67226eda80a21f62b7aa145878f4.tar.xz | |
powerpc/qe: set IReady in QE Microcode Upload
QE Microcode Initialization using qe_upload_microcode() does not work on
P1021 if the IRAM-Ready register is not set after the microcode upload. Add
a definition for the "I-RAM Ready" register and sets it upon microcode
upload completion.
Signed-off-by: Ioannis Kokkoris <ioannis.kokoris@siemens-enterprise.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/include/asm/immap_qe.h | 4 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/qe.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/qe.c | 3 |
3 files changed, 7 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/immap_qe.h b/arch/powerpc/include/asm/immap_qe.h index 0edb6842b13d..61e8490786b8 100644 --- a/arch/powerpc/include/asm/immap_qe.h +++ b/arch/powerpc/include/asm/immap_qe.h @@ -26,7 +26,9 @@ struct qe_iram { __be32 iadd; /* I-RAM Address Register */ __be32 idata; /* I-RAM Data Register */ - u8 res0[0x78]; + u8 res0[0x04]; + __be32 iready; /* I-RAM Ready Register */ + u8 res1[0x70]; } __attribute__ ((packed)); /* QE Interrupt Controller */ diff --git a/arch/powerpc/include/asm/qe.h b/arch/powerpc/include/asm/qe.h index 5e0b6d511e14..229571a49391 100644 --- a/arch/powerpc/include/asm/qe.h +++ b/arch/powerpc/include/asm/qe.h @@ -499,6 +499,7 @@ enum comm_dir { /* I-RAM */ #define QE_IRAM_IADD_AIE 0x80000000 /* Auto Increment Enable */ #define QE_IRAM_IADD_BADDR 0x00080000 /* Base Address */ +#define QE_IRAM_READY 0x80000000 /* Ready */ /* UPC */ #define UPGCR_PROTOCOL 0x80000000 /* protocol ul2 or pl2 */ diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c index 818e763f8265..b04367529729 100644 --- a/arch/powerpc/sysdev/qe_lib/qe.c +++ b/arch/powerpc/sysdev/qe_lib/qe.c @@ -395,6 +395,9 @@ static void qe_upload_microcode(const void *base, for (i = 0; i < be32_to_cpu(ucode->count); i++) out_be32(&qe_immr->iram.idata, be32_to_cpu(code[i])); + + /* Set I-RAM Ready Register */ + out_be32(&qe_immr->iram.iready, be32_to_cpu(QE_IRAM_READY)); } /* |