[PATCH v2] configs:rockchip: roc-rk3399-pc: Enable the preboot configuration , USB 1.1 support , crypto RNG support and increase the spi flash default speed

[Manoj Sai]

This Patch enables the following details of configs to rockchip based roc-rk3399-pc board :

1) Enable preboot configuration to enable  usb devices .

2) Fix up USB config options so keyboards and other USB devices work and
   update the number of ports of the Usb root hub to configuration of
   CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS .

   - with this addition the updated USB device Tree :
     USB device tree:

	1  Hub (12 Mb/s, 0mA)
	U-Boot Root Hub
	1  Hub (12 Mb/s, 0mA)
	|   U-Boot Root Hub
	|
	+-2  Hub (12 Mb/s, 100mA)
	USB 2.0 Hub [MTT]

	1  Hub (5 Gb/s, 0mA)
	U-Boot XHCI Host Controller

3) enable crypto RNG ( random number generator ) support

4) Set the maximum slave SPI speed to 30MHz :
    - This patch increases the maximum SPI slave device speed and
      SPI flash max frequency for environment from 10Mhz to 30MHz .

    - difference in time of erase and update a region of SPI flash from memory
      with 10Mhz and 30Mhz frequencey range updation  follows :-

    with 10 Mhz frequency updation :-
    => sf update 0x300000 0x800000 0x400000
    4194304 bytes written, 0 bytes skipped in 36.819s, speed 119837 B/s

    with 30Mhz frequency updation  :-
    => sf update 0x300000 0x800000 0x400000
    4194304 bytes written, 0 bytes skipped in 20.319s, speed 220752 B/s

Signed-off-by: Manoj Sai <abbaraju.manojsai at amarulasolutions.com>
Signed-off-by: Da Xue <da.xue at libretech.co>
Signed-off-by: dsx724 <da at lessconfused.com>
---
Changes for v2 :-
- fixed prefix in commit message .
- squash the all four patches into single patch .
---
 configs/roc-pc-rk3399_defconfig | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/configs/roc-pc-rk3399_defconfig b/configs/roc-pc-rk3399_defconfig
index 4625e47537..7754cb8388 100644
--- a/configs/roc-pc-rk3399_defconfig
+++ b/configs/roc-pc-rk3399_defconfig
@@ -20,6 +20,7 @@ CONFIG_DEBUG_UART=y
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x300000
 # CONFIG_ANDROID_BOOT_IMAGE is not set
+CONFIG_USE_PREBOOT=y
 CONFIG_DEFAULT_FDT_FILE="rockchip/rk3399-roc-pc.dtb"
 CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_SPL_MAX_SIZE=0x2e000
@@ -44,6 +45,7 @@ CONFIG_CMD_TIME=y
 CONFIG_SPL_OF_CONTROL=y
 CONFIG_OF_SPL_REMOVE_PROPS="pinctrl-0 pinctrl-names clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
 CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_ENV_SPI_MAX_HZ=30000000
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_SPL_DM_SEQ_ALIAS=y
 CONFIG_ROCKCHIP_GPIO=y
@@ -54,6 +56,7 @@ CONFIG_MMC_DW_ROCKCHIP=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_ROCKCHIP=y
 CONFIG_SF_DEFAULT_BUS=1
+CONFIG_SF_DEFAULT_SPEED=30000000
 CONFIG_SPI_FLASH_WINBOND=y
 CONFIG_ETH_DESIGNWARE=y
 CONFIG_GMAC_ROCKCHIP=y
@@ -66,6 +69,8 @@ CONFIG_PWM_ROCKCHIP=y
 # CONFIG_RAM_ROCKCHIP_DEBUG is not set
 CONFIG_RAM_RK3399_LPDDR4=y
 CONFIG_DM_RESET=y
+CONFIG_DM_RNG=y
+CONFIG_RNG_ROCKCHIP=y
 CONFIG_BAUDRATE=1500000
 CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_ROCKCHIP_SPI=y
@@ -75,6 +80,9 @@ CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_GENERIC=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_GENERIC=y
+CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS=2
 CONFIG_USB_DWC3=y
 CONFIG_USB_DWC3_GENERIC=y
 CONFIG_USB_KEYBOARD=y
-- 
2.25.1