Re: [U-Boot] [RFC PATCH] am335x: Changes in DDR init procedure to Support Samsung K4B2G1646EBIH9 memory chip

2019-01-21 Thread Tom Rini
On Mon, Jan 21, 2019 at 12:32:18PM +0100, Maciej Zagrabski wrote: > K4B2G1646EBIH9 Samsung memory chip used now on chiliSOM requires > refresh register REF CTRL to be initialized with large enough > value, faster than it is implemented in `config_sdram` in ddr.c > for am33xx, that mean before

[U-Boot] [RFC PATCH] am335x: Changes in DDR init procedure to Support Samsung K4B2G1646EBIH9 memory chip

2019-01-21 Thread Maciej Zagrabski
K4B2G1646EBIH9 Samsung memory chip used now on chiliSOM requires refresh register REF CTRL to be initialized with large enough value, faster than it is implemented in `config_sdram` in ddr.c for am33xx, that mean before setting ZQ CTRL. Change should not interferee with already supported DDR chips