diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/ast-bmc/ast-sf-ctrl.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/hw/ast-bmc/ast-sf-ctrl.c b/hw/ast-bmc/ast-sf-ctrl.c index 03cc443..c3a3213 100644 --- a/hw/ast-bmc/ast-sf-ctrl.c +++ b/hw/ast-bmc/ast-sf-ctrl.c @@ -77,8 +77,11 @@ static int ast_copy_to_ahb(uint32_t reg, const void *src, uint32_t len) while(len) { /* Chose access size */ if (len > 3 && !(off & 3)) { + /* endian swap: see ast_copy_from_ahb */ + uint32_t dat = be32_to_cpu(*(__be32 *)src); + rc = lpc_write(OPAL_LPC_FW, off, - *(uint32_t *)src, 4); + dat, 4); chunk = 4; } else { rc = lpc_write(OPAL_LPC_FW, off, @@ -119,8 +122,13 @@ static int ast_copy_from_ahb(void *dst, uint32_t reg, uint32_t len) /* Chose access size */ if (len > 3 && !(off & 3)) { rc = lpc_read(OPAL_LPC_FW, off, &dat, 4); - if (!rc) - *(uint32_t *)dst = dat; + if (!rc) { + /* + * lpc_read swaps to CPU endian but it's not + * really a 32-bit value, so convert back. + */ + *(__be32 *)dst = cpu_to_be32(dat); + } chunk = 4; } else { rc = lpc_read(OPAL_LPC_FW, off, &dat, 1); |