| From e21d90ae8c131eae9d78e3d06f29cab55c952884 Mon Sep 17 00:00:00 2001 |
| From: Matt Spinler <spinler@us.ibm.com> |
| Date: Thu, 19 Jan 2017 09:06:48 -0600 |
| Subject: [PATCH] CFAM reg 0x2918 access hack |
| |
| --- |
| libpdbg/bmcfsi.c | 11 ++++++++++- |
| 1 file changed, 10 insertions(+), 1 deletion(-) |
| |
| diff --git a/libpdbg/bmcfsi.c b/libpdbg/bmcfsi.c |
| index 64dbd69..f763f2a 100644 |
| --- a/libpdbg/bmcfsi.c |
| +++ b/libpdbg/bmcfsi.c |
| @@ -247,7 +247,16 @@ static uint64_t fsi_abs_ar(uint32_t addr, int read) |
| /* Reformat the address. I'm not sure I fully understand this |
| * yet but we basically shift the bottom byte and add 0b01 |
| * (for the write word?) */ |
| - addr = ((addr & 0x1fff00) | ((addr & 0xff) << 2)) << 1; |
| + |
| + /* Hack: this shifting doesn't work for all addresses, but it does |
| + * work for 2918 and (and 2nd chip 2918) so use it just for that */ |
| + if ((addr == 0x2918) || (addr == 0x102918)) { |
| + addr = ((addr & 0x1ffe00) | ((addr & 0x1ff) << 2)) << 1; |
| + } |
| + else { |
| + addr = ((addr & 0x1fff00) | ((addr & 0xff) << 2)) << 1; |
| + } |
| + |
| addr |= 0x3; |
| addr |= slave_id << 26; |
| addr |= (0x8ULL | !!(read)) << 22; |
| -- |
| 2.11.0 |
| |