diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/rockchip/rk3399/sdram.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/soc/rockchip/rk3399/sdram.c b/src/soc/rockchip/rk3399/sdram.c index 89463aa174..9490c0c2e4 100644 --- a/src/soc/rockchip/rk3399/sdram.c +++ b/src/soc/rockchip/rk3399/sdram.c @@ -100,6 +100,18 @@ static void copy_to_reg(u32 *dest, const u32 *src, u32 n) } } +static void phy_pctrl_reset(u32 channel) +{ + rkclk_ddr_reset(channel, 1, 1); + udelay(10); + + rkclk_ddr_reset(channel, 1, 0); + udelay(10); + + rkclk_ddr_reset(channel, 0, 0); + udelay(10); +} + static void phy_dll_bypass_set(u32 channel, struct rk3399_ddr_publ_regs *ddr_publ_regs, u32 freq) { @@ -1083,6 +1095,7 @@ void sdram_init(const struct rk3399_sdram_params *params) rkclk_configure_ddr(ddr_freq); for (channel = 0; channel < 2; channel++) { + phy_pctrl_reset(channel); phy_dll_bypass_set(channel, rk3399_ddr_publ[channel], ddr_freq); if (channel >= params->num_channels) |