On Thu, Apr 30, 2020 at 12:34:12PM +0530, Jagan Teki wrote:
> Due to some on board limitation rock960 PCIe
> works only with 1.8V IO domain.
>
> So, this patch enables grf io_sel explicitly
> to make PCIe/M.2 to work.
>
> Cc: Tom Cubie <tom@xxxxxxxxx>
> Cc: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
> ---
> Changes for v2:
> - none
>
> board/vamrs/rock960_rk3399/rock960-rk3399.c | 20 ++++++++++++++++++++
> configs/rock960-rk3399_defconfig | 5 +++++
> 2 files changed, 25 insertions(+)
>
> diff --git a/board/vamrs/rock960_rk3399/rock960-rk3399.c b/board/vamrs/rock960_rk3399/rock960-rk3399.c
> index 68a127b9ac..98d62e89ca 100644
> --- a/board/vamrs/rock960_rk3399/rock960-rk3399.c
> +++ b/board/vamrs/rock960_rk3399/rock960-rk3399.c
> @@ -2,3 +2,23 @@
> /*
> * Copyright (C) 2018 Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> */
> +
> +#include <common.h>
> +#include <syscon.h>
> +#include <asm/io.h>
> +#include <asm/arch-rockchip/clock.h>
> +#include <asm/arch-rockchip/grf_rk3399.h>
> +#include <asm/arch-rockchip/hardware.h>
> +
> +#ifdef CONFIG_MISC_INIT_R
> +int misc_init_r(void)
> +{
> + struct rk3399_grf_regs *grf =
> + syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
> +
> + /* BT565 is in 1.8v domain */
>From where this BT565 comes in?
Anyway, I don't have the PCI-E device with me to test this change but
it looks good to me.
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
PS: Added Peter to CC incase he is interested.
Thanks,
Mani
> + rk_setreg(&grf->io_vsel, BIT(0));
> +
> + return 0;
> +}
> +#endif
> diff --git a/configs/rock960-rk3399_defconfig b/configs/rock960-rk3399_defconfig
> index c4e954731a..cb1ec3c26b 100644
> --- a/configs/rock960-rk3399_defconfig
> +++ b/configs/rock960-rk3399_defconfig
> @@ -9,6 +9,7 @@ CONFIG_DEBUG_UART_BASE=0xFF1A0000
> CONFIG_DEBUG_UART_CLOCK=24000000
> CONFIG_DEBUG_UART=y
> CONFIG_DEFAULT_FDT_FILE="rockchip/rk3399-rock960.dtb"
> +CONFIG_MISC_INIT_R=y
> CONFIG_DISPLAY_BOARDINFO_LATE=y
> # CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
> CONFIG_SPL_STACK_R=y
> @@ -19,6 +20,7 @@ CONFIG_CMD_BOOTZ=y
> CONFIG_CMD_GPT=y
> CONFIG_CMD_MMC=y
> CONFIG_CMD_USB=y
> +CONFIG_CMD_PCI=y
> # CONFIG_CMD_SETEXPR is not set
> CONFIG_CMD_TIME=y
> CONFIG_CMD_PMIC=y
> @@ -36,10 +38,13 @@ CONFIG_MMC_SDHCI=y
> CONFIG_MMC_SDHCI_SDMA=y
> CONFIG_MMC_SDHCI_ROCKCHIP=y
> CONFIG_DM_ETH=y
> +CONFIG_NVME=y
> +CONFIG_PCI=y
> CONFIG_PMIC_RK8XX=y
> CONFIG_REGULATOR_PWM=y
> CONFIG_REGULATOR_RK8XX=y
> CONFIG_PWM_ROCKCHIP=y
> +CONFIG_DM_RESET=y
> CONFIG_BAUDRATE=1500000
> CONFIG_DEBUG_UART_SHIFT=2
> CONFIG_SYSRESET=y
> --
> 2.17.1
>
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