@@ -406,31 +406,30 @@ static void omap3_emu_romcode_call(u32 service_id, u32 *parameters)
do_omap3_emu_romcode_call(service_id, OMAP3_PUBLIC_SRAM_SCRATCH_AREA);
}
-void v7_arch_cp15_set_acr(u32 acr, u32 cpu_midr, u32 cpu_rev_comb,
- u32 cpu_variant, u32 cpu_rev)
+void __weak omap3_set_aux_cr_secure(u32 acr)
{
- if (get_device_type() == GP_DEVICE) {
- omap_smc1(OMAP3_GP_ROMCODE_API_WRITE_ACR, acr);
- } else {
- struct emu_hal_params emu_romcode_params;
- emu_romcode_params.num_params = 1;
- emu_romcode_params.param1 = acr;
- omap3_emu_romcode_call(OMAP3_EMU_HAL_API_WRITE_ACR,
- (u32 *)&emu_romcode_params);
- }
+ struct emu_hal_params emu_romcode_params;
+
+ emu_romcode_params.num_params = 1;
+ emu_romcode_params.param1 = acr;
+ omap3_emu_romcode_call(OMAP3_EMU_HAL_API_WRITE_ACR,
+ (u32 *)&emu_romcode_params);
}
-static void omap3_update_aux_cr_secure(u32 set_bits, u32 clear_bits)
+void v7_arch_cp15_set_acr(u32 acr, u32 cpu_midr, u32 cpu_rev_comb,
+ u32 cpu_variant, u32 cpu_rev)
{
- u32 acr;
+ /* Write ACR - affects secure banked bits */
+ if (get_device_type() == GP_DEVICE)
+ omap_smc1(OMAP3_GP_ROMCODE_API_WRITE_ACR, acr);
+ else
+ omap3_set_aux_cr_secure(acr);
- /* Read ACR */
- asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr));
- acr &= ~clear_bits;
- acr |= set_bits;
- v7_arch_cp15_set_acr(acr, 0, 0, 0, 0);
+ /* Write ACR - affects non-secure banked bits - some erratas need it */
+ asm volatile ("mcr p15, 0, %0, c1, c0, 1" : : "r" (acr));
}
+
#ifndef CONFIG_SYS_L2CACHE_OFF
static void omap3_update_aux_cr(u32 set_bits, u32 clear_bits)
{
@@ -440,9 +439,8 @@ static void omap3_update_aux_cr(u32 set_bits, u32 clear_bits)
asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr));
acr &= ~clear_bits;
acr |= set_bits;
+ v7_arch_cp15_set_acr(acr, 0, 0, 0, 0);
- /* Write ACR - affects non-secure banked bits */
- asm volatile ("mcr p15, 0, %0, c1, c0, 1" : : "r" (acr));
}
/* Invalidate the entire L2 cache from secure mode */
@@ -461,10 +459,9 @@ static void omap3_invalidate_l2_cache_secure(void)
void v7_outer_cache_enable(void)
{
- /* Set L2EN */
- omap3_update_aux_cr_secure(0x2, 0);
/*
+ * Set L2EN
* On some revisions L2EN bit is banked on some revisions it's not
* No harm in setting both banked bits(in fact this is required
* by an erratum)
@@ -474,10 +471,8 @@ void v7_outer_cache_enable(void)
void omap3_outer_cache_disable(void)
{
- /* Clear L2EN */
- omap3_update_aux_cr_secure(0, 0x2);
-
/*
+ * Clear L2EN
* On some revisions L2EN bit is banked on some revisions it's not
* No harm in clearing both banked bits(in fact this is required
* by an erratum)
@@ -74,5 +74,6 @@ void dieid_num_r(void);
void get_dieid(u32 *id);
void do_omap3_emu_romcode_call(u32 service_id, u32 parameters);
void omap_smc1(u32 service, u32 val);
+void omap3_set_aux_cr_secure(u32 acr);
u32 warm_reset(void);
#endif
@@ -341,6 +341,17 @@ static void omap3_emu_romcode_call(u32 service_id, u32 *parameters)
do_omap3_emu_romcode_call(service_id, OMAP3_PUBLIC_SRAM_SCRATCH_AREA);
}
+void omap3_set_aux_cr_secure(u32 acr)
+{
+ struct emu_hal_params_rx51 emu_romcode_params = { 0, };
+
+ emu_romcode_params.num_params = 2;
+ emu_romcode_params.param1 = acr;
+
+ omap3_emu_romcode_call(OMAP3_EMU_HAL_API_WRITE_ACR,
+ (u32 *)&emu_romcode_params);
+}
+
/*
* Routine: omap3_update_aux_cr_secure_rx51
* Description: Modify the contents Auxiliary Control Register.
@@ -350,19 +361,13 @@ static void omap3_emu_romcode_call(u32 service_id, u32 *parameters)
*/
static void omap3_update_aux_cr_secure_rx51(u32 set_bits, u32 clear_bits)
{
- struct emu_hal_params_rx51 emu_romcode_params = { 0, };
u32 acr;
/* Read ACR */
asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr));
acr &= ~clear_bits;
acr |= set_bits;
-
- emu_romcode_params.num_params = 2;
- emu_romcode_params.param1 = acr;
-
- omap3_emu_romcode_call(OMAP3_EMU_HAL_API_WRITE_ACR,
- (u32 *)&emu_romcode_params);
+ omap3_set_aux_cr_secure(acr);
}
/*
@@ -29,6 +29,10 @@
#define CONFIG_SYS_L2CACHE_OFF /* pretend there is no L2 CACHE */
#define CONFIG_OMAP_COMMON
#define CONFIG_SYS_GENERIC_BOARD
+/* Common ARM Erratas */
+#define CONFIG_ARM_ERRATA_454179
+#define CONFIG_ARM_ERRATA_430973
+#define CONFIG_ARM_ERRATA_621766
#define CONFIG_MACH_TYPE MACH_TYPE_NOKIA_RX51
RX51 has a secure logic which uses different parameters compared to traditional implementation. So, make the generic secure acr write over-ride-able by board file and refactor rx51 code to use this. While at it, enable the OMAP3 specific errata code for 454179, 430973, 621766. Signed-off-by: Nishanth Menon <nm@ti.com> --- arch/arm/cpu/armv7/omap3/board.c | 45 ++++++++++++--------------- arch/arm/include/asm/arch-omap3/sys_proto.h | 1 + board/nokia/rx51/rx51.c | 19 ++++++----- include/configs/nokia_rx51.h | 4 +++ 4 files changed, 37 insertions(+), 32 deletions(-)