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authorTom Rini <trini@ti.com>2015-06-05 15:51:11 +0530
committerTom Rini <trini@konsulko.com>2015-06-15 10:57:26 -0400
commit7c352cd38d0ad7a25f98592182704667dfde37a8 (patch)
treeab155ec66d04a7a7e7096cb41fdf1eeaa1d200bb /arch/arm/cpu/armv7/omap-common/clocks-common.c
parent37be54fd1351a177c061c2c351ffdd53efaebb59 (diff)
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am33xx: Re-enable SW levelling for DDR2
The recent changes for hw leveling on am33xx were not intended for DDR2 boards, only DDR3. Update emif_sdram_type to take a sdram_config value to check against. This lets us pass in the value we would use to configure, when we have not yet configured the board yet. In other cases update the call to be as functional as before and check an already programmed value in. Tested-by: Yan Liu <yan-liu@ti.com> Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Diffstat (limited to 'arch/arm/cpu/armv7/omap-common/clocks-common.c')
-rw-r--r--arch/arm/cpu/armv7/omap-common/clocks-common.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/clocks-common.c b/arch/arm/cpu/armv7/omap-common/clocks-common.c
index fa04bbe..c94a807 100644
--- a/arch/arm/cpu/armv7/omap-common/clocks-common.c
+++ b/arch/arm/cpu/armv7/omap-common/clocks-common.c
@@ -372,6 +372,7 @@ static void setup_dplls(void)
{
u32 temp;
const struct dpll_params *params;
+ struct emif_reg_struct *emif = (struct emif_reg_struct *)EMIF1_BASE;
debug("setup_dplls\n");
@@ -382,7 +383,8 @@ static void setup_dplls(void)
* Core DPLL will be locked after setting up EMIF
* using the FREQ_UPDATE method(freq_update_core())
*/
- if (emif_sdram_type() == EMIF_SDRAM_TYPE_LPDDR2)
+ if (emif_sdram_type(readl(&emif->emif_sdram_config)) ==
+ EMIF_SDRAM_TYPE_LPDDR2)
do_setup_dpll((*prcm)->cm_clkmode_dpll_core, params,
DPLL_NO_LOCK, "core");
else