The R8A7796 r1.1 reports itself as r2.0 , add quirk into the
PRR code to fix this report.
Signed-off-by: Marek Vasut <marek.vasut+rene...@gmail.com>
Cc: Hiroyuki Yokoyama <hiroyuki.yokoyama...@renesas.com>
Cc: Nobuhiro Iwamatsu <iwama...@nigauri.org>
---
arch/arm/mach-rmobile/cpu_info-rcar.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-rmobile/cpu_info-rcar.c
b/arch/arm/mach-rmobile/cpu_info-rcar.c
index 42ee30fbe7..c373eef73d 100644
--- a/arch/arm/mach-rmobile/cpu_info-rcar.c
+++ b/arch/arm/mach-rmobile/cpu_info-rcar.c
@@ -8,7 +8,10 @@
#include <common.h>
#include <asm/io.h>
-#define PRR 0xFF000044
+#define PRR 0xFF000044
+#define PRR_MASK 0x7fff
+#define R8A7796_REV_1_0 0x5200
+#define R8A7796_REV_1_1 0x5210
u32 rmobile_get_cpu_type(void)
{
@@ -17,10 +20,20 @@ u32 rmobile_get_cpu_type(void)
u32 rmobile_get_cpu_rev_integer(void)
{
- return ((readl(PRR) & 0x000000F0) >> 4) + 1;
+ const u32 prr = readl(PRR);
+
+ if ((prr & PRR_MASK) == R8A7796_REV_1_1)
+ return 1;
+ else
+ return ((prr & 0x000000F0) >> 4) + 1;
}
u32 rmobile_get_cpu_rev_fraction(void)
{
- return readl(PRR) & 0x0000000F;
+ const u32 prr = readl(PRR);
+
+ if ((prr & PRR_MASK) == R8A7796_REV_1_1)
+ return 1;
+ else
+ return prr & 0x0000000F;
}
--
2.11.0
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