From: Steve Kipisz s-kipisz2@ti.com

AM571x supports DDR running at 666MHz. Right now it is clocked at 532MHz which is lower than what is supported. In order to have maximum performance on AM571-IDK, switch DDR to 666MHz.

Signed-off-by: Steve Kipisz s-kipisz2@ti.com Signed-off-by: Lokesh Vutla lokeshvutla@ti.com --- arch/arm/include/asm/omap_common.h | 1 + board/ti/am57xx/board.c | 35 +++++++++++++++++++++++++++++++++-- 2 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h index d7e453e579..8b296c9685 100644 --- a/arch/arm/include/asm/omap_common.h +++ b/arch/arm/include/asm/omap_common.h @@ -596,6 +596,7 @@ extern struct prcm_regs const omap4_prcm; extern struct prcm_regs const dra7xx_prcm; extern struct dplls const **dplls_data; extern struct dplls dra7xx_dplls; +extern struct dplls dra72x_dplls; extern struct vcores_data const **omap_vcores; extern const u32 sys_clk_array[8]; extern struct omap_sys_ctrl_regs const **ctrl; diff --git a/board/ti/am57xx/board.c b/board/ti/am57xx/board.c index 7e7056cf71..3d15cb1dbf 100644 --- a/board/ti/am57xx/board.c +++ b/board/ti/am57xx/board.c @@ -223,11 +223,39 @@ static const u32 beagle_x15_emif2_ddr3_ext_phy_ctrl_const_regs[] = { 0x0 };

+static const struct emif_regs am571x_emif1_ddr3_666mhz_emif_regs = { + .sdram_config_init = 0x61863332, + .sdram_config = 0x61863332, + .sdram_config2 = 0x08000000, + .ref_ctrl = 0x0000514d, + .ref_ctrl_final = 0x0000144a, + .sdram_tim1 = 0xd333887c, + .sdram_tim2 = 0x40b37fe3, + .sdram_tim3 = 0x409f8ada, + .read_idle_ctrl = 0x00050000, + .zq_config = 0x5007190b, + .temp_alert_config = 0x00000000, + .emif_ddr_phy_ctlr_1_init = 0x0024400f, + .emif_ddr_phy_ctlr_1 = 0x0e24400f, + .emif_ddr_ext_phy_ctrl_1 = 0x10040100, + .emif_ddr_ext_phy_ctrl_2 = 0x00910091, + .emif_ddr_ext_phy_ctrl_3 = 0x00950095, + .emif_ddr_ext_phy_ctrl_4 = 0x009b009b, + .emif_ddr_ext_phy_ctrl_5 = 0x009e009e, + .emif_rd_wr_lvl_rmp_win = 0x00000000, + .emif_rd_wr_lvl_rmp_ctl = 0x80000000, + .emif_rd_wr_lvl_ctl = 0x00000000, + .emif_rd_wr_exec_thresh = 0x00000305 +}; + void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs) { switch (emif_nr) { case 1: - *regs = &beagle_x15_emif1_ddr3_532mhz_emif_regs; + if (board_is_am571x_idk()) + *regs = &am571x_emif1_ddr3_666mhz_emif_regs; + else + *regs = &beagle_x15_emif1_ddr3_532mhz_emif_regs; break; case 2: *regs = &beagle_x15_emif2_ddr3_532mhz_emif_regs; @@ -513,7 +541,10 @@ void vcores_init(void) void hw_data_init(void) { *prcm = &dra7xx_prcm; - *dplls_data = &dra7xx_dplls; + if (is_dra72x()) + *dplls_data = &dra72x_dplls; + else + *dplls_data = &dra7xx_dplls; *ctrl = &dra7xx_ctrl; }