ppc/85xx: Fix LCRR_CLKDIV defines
For some reason the CLKDIV field varies between SoC in how it interprets
the bit values.
All 83xx and early (e500v1) PQ3 devices support:
clk/2: CLKDIV = 2
clk/4: CLKDIV = 4
clk/8: CLKDIV = 8
Newer PQ3 (e500v2) and MPC86xx support:
clk/4: CLKDIV = 2
clk/8: CLKDIV = 4
clk/16: CLKDIV = 8
Ensure that the MPC86xx and MPC85xx still get the same behavior and make
the defines reflect their logical view (not the value of the field).
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Peter Tyser <ptyser@xes-inc.com>
diff --git a/include/asm-ppc/fsl_lbc.h b/include/asm-ppc/fsl_lbc.h
index a28082e..08d31e1 100644
--- a/include/asm-ppc/fsl_lbc.h
+++ b/include/asm-ppc/fsl_lbc.h
@@ -311,9 +311,17 @@
*/
#define LCRR_CLKDIV 0x0000001F
#define LCRR_CLKDIV_SHIFT 0
+#if defined(CONFIG_MPC83xx) || defined (CONFIG_MPC8540) || \
+ defined(CONFIG_MPC8541) || defined (CONFIG_MPC8555) || \
+ defined(CONFIG_MPC8560)
#define LCRR_CLKDIV_2 0x00000002
#define LCRR_CLKDIV_4 0x00000004
#define LCRR_CLKDIV_8 0x00000008
+#else
+#define LCRR_CLKDIV_4 0x00000002
+#define LCRR_CLKDIV_8 0x00000004
+#define LCRR_CLKDIV_16 0x00000008
+#endif
/* LTEDR - Transfer Error Check Disable Register
*/
diff --git a/include/configs/XPEDITE5170.h b/include/configs/XPEDITE5170.h
index 242466a..30642cd 100644
--- a/include/configs/XPEDITE5170.h
+++ b/include/configs/XPEDITE5170.h
@@ -122,7 +122,7 @@
* 0xf800_0000 0xffff_ffff NOR Flash 1 128M non-cacheable
*/
-#define CONFIG_SYS_LBC_LCRR (LCRR_CLKDIV_2 | LCRR_EADC_3)
+#define CONFIG_SYS_LBC_LCRR (LCRR_CLKDIV_4 | LCRR_EADC_3)
/*
* NAND flash configuration
diff --git a/include/configs/XPEDITE5200.h b/include/configs/XPEDITE5200.h
index deda208..d79231b 100644
--- a/include/configs/XPEDITE5200.h
+++ b/include/configs/XPEDITE5200.h
@@ -103,7 +103,7 @@
* 0xfc00_0000 0xffff_ffff NOR Flash 1 64M non-cacheable
*/
-#define CONFIG_SYS_LBC_LCRR (LCRR_CLKDIV_4 | LCRR_EADC_3)
+#define CONFIG_SYS_LBC_LCRR (LCRR_CLKDIV_8 | LCRR_EADC_3)
/*
* NAND flash configuration
diff --git a/include/configs/XPEDITE5370.h b/include/configs/XPEDITE5370.h
index 3c58ebe..65e1afd 100644
--- a/include/configs/XPEDITE5370.h
+++ b/include/configs/XPEDITE5370.h
@@ -116,7 +116,7 @@
* 0xf800_0000 0xffff_ffff NOR Flash 1 128M non-cacheable
*/
-#define CONFIG_SYS_LBC_LCRR (LCRR_CLKDIV_4 | LCRR_EADC_3)
+#define CONFIG_SYS_LBC_LCRR (LCRR_CLKDIV_8 | LCRR_EADC_3)
/*
* NAND flash configuration