From 441a4baf87ada2608a109a203a5d8040f6dc2b0d Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Fri, 17 May 2013 11:56:09 -0700 Subject: [PATCH] libpayload (EHCI): correctly align PORTSC Two structures in the USB EHCI stack were pointing to hardware but not marked attribute((packed)) hence leaving it to GCC to correctly align the data structures. Next, the number of reserved bytes in hc_op_t was wrong (but implicitly aligned to the correct values on x86) It seems this worked fine on x86, but on ARM it was doing the wrong thing. Signed-off-by: Stefan Reinauer Change-Id: I94bed4850ded7d3f7bbc7ff3079c103c6054c22d Reviewed-on: https://gerrit.chromium.org/gerrit/55555 Commit-Queue: Stefan Reinauer Reviewed-by: Stefan Reinauer Tested-by: Stefan Reinauer Reviewed-on: http://review.coreboot.org/4174 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich --- payloads/libpayload/drivers/usb/ehci_private.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/payloads/libpayload/drivers/usb/ehci_private.h b/payloads/libpayload/drivers/usb/ehci_private.h index 3b9faf6d31..3365be1977 100644 --- a/payloads/libpayload/drivers/usb/ehci_private.h +++ b/payloads/libpayload/drivers/usb/ehci_private.h @@ -78,10 +78,10 @@ typedef volatile struct { u32 ctrldssegment; u32 periodiclistbase; u32 asynclistaddr; - u8 res1[0x3f-0x1c]; + u8 res1[0x40-0x1c]; u32 configflag; portsc_t portsc[0]; -} hc_op_t; +} __attribute__ ((packed)) hc_op_t; typedef volatile struct { #define QTD_TERMINATE 1 @@ -130,7 +130,7 @@ typedef volatile struct { #define QH_PIPE_MULTIPLIER_SHIFT 30 volatile u32 current_td_ptr; volatile qtd_t td; -} ehci_qh_t; +} __attribute__ ((packed)) ehci_qh_t; typedef struct ehci { hc_cap_t *capabilities;