Hi Patrice, > -----Original Message----- > From: Patrice CHOTARD > Sent: Monday, November 13, 2017 8:26 AM > To: [email protected]; [email protected]; [email protected]; Vikas > MANOCHA <[email protected]> > Cc: Patrice CHOTARD <[email protected]>; Patrick DELAUNAY > <[email protected]>; Christophe KERELLO > <[email protected]> > Subject: [PATCH] mach-stm32: Fix mpu region's attribute for STM32H7 > > From: Patrice Chotard <[email protected]> > > The SDRAM region was setup with the wrong attributes. > It must be set to : > _ XN_EN (Execution of an instruction fetched from this region permitted) > _ O_I_WB_RD_WR_ALLOC (Outer and inner write-back, write and read allocate) >
H7 mpu configuration seems same as F7, can we have one config for F7 & H7. > This fixes hard fault when trying to load and execute kernel linux in this > area. > > Signed-off-by: Patrice Chotard <[email protected]> In any case, Reviewed-by: Vikas Manocha <[email protected]> Cheers, Vikas > --- > arch/arm/mach-stm32/stm32h7/soc.c | 9 ++++++--- > 1 file changed, 6 insertions(+), 3 deletions(-) > > diff --git a/arch/arm/mach-stm32/stm32h7/soc.c > b/arch/arm/mach-stm32/stm32h7/soc.c > index 692dbcc..e0d3f11 100644 > --- a/arch/arm/mach-stm32/stm32h7/soc.c > +++ b/arch/arm/mach-stm32/stm32h7/soc.c > @@ -30,9 +30,12 @@ int arch_cpu_init(void) > { 0x00000000, REGION_0, XN_DIS, PRIV_RW_USR_RW, > O_I_WB_RD_WR_ALLOC, REGION_4GB }, > > - /* Code area, executable & strongly ordered */ > - { 0xD0000000, REGION_1, XN_EN, PRIV_RW_USR_RW, > - STRONG_ORDER, REGION_8MB }, > + /* > + * Code area, executable, Outer and inner write-back, > + * no write allocate > + */ > + { 0xD0000000, REGION_1, XN_DIS, PRIV_RW_USR_RW, > + O_I_WB_RD_WR_ALLOC, REGION_32MB }, > > /* Device area in all H7 : Not executable */ > { 0x40000000, REGION_2, XN_EN, PRIV_RW_USR_RW, > -- > 1.9.1 _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
