[U-Boot] [PATCH v2 2/8] rockchip: rk3399: Support common spl_board_init

Kever Yang
2019-06-22T13:47:06Z

Hi Jagan,

On 06/21/2019 02:55 AM, Jagan Teki wrote:
> Support common spl_board_init by moving code from puma
> board file into, common rk3399-board-spl.c.
>
> Part of the code has sysreset-gpio, regulators_enable_boot_on
> but right now only puma board is using this with relevant
> config options rest remains common for all targets.
>
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

Thanks,
- Kever
> ---
> arch/arm/mach-rockchip/rk3399-board-spl.c | 63 +++++++++++++++++++
> board/rockchip/evb_rk3399/evb-rk3399.c | 8 ---
> .../puma_rk3399/puma-rk3399.c | 58 -----------------
> board/vamrs/rock960_rk3399/rock960-rk3399.c | 8 ---
> 4 files changed, 63 insertions(+), 74 deletions(-)
>
> diff --git a/arch/arm/mach-rockchip/rk3399-board-spl.c b/arch/arm/mach-rockchip/rk3399-board-spl.c
> index 800ca80022..65c98b697d 100644
> --- a/arch/arm/mach-rockchip/rk3399-board-spl.c
> +++ b/arch/arm/mach-rockchip/rk3399-board-spl.c
> @@ -11,13 +11,16 @@
> #include <spl.h>
> #include <spl_gpio.h>
> #include <syscon.h>
> +#include <asm/gpio.h>
> #include <asm/io.h>
> #include <asm/arch-rockchip/bootrom.h>
> #include <asm/arch-rockchip/clock.h>
> +#include <asm/arch-rockchip/cru_rk3399.h>
> #include <asm/arch-rockchip/grf_rk3399.h>
> #include <asm/arch-rockchip/hardware.h>
> #include <asm/arch-rockchip/periph.h>
> #include <asm/arch-rockchip/sys_proto.h>
> +#include <power/regulator.h>
> #include <dm/pinctrl.h>
>
> void board_return_to_bootrom(void)
> @@ -202,6 +205,66 @@ void board_init_f(ulong dummy)
> }
> }
>
> +#if defined(SPL_GPIO_SUPPORT)
> +static void rk3399_force_power_on_reset(void)
> +{
> + ofnode node;
> + struct gpio_desc sysreset_gpio;
> +
> + debug("%s: trying to force a power-on reset\n", __func__);
> +
> + node = ofnode_path("/config");
> + if (!ofnode_valid(node)) {
> + debug("%s: no /config node?\n", __func__);
> + return;
> + }
> +
> + if (gpio_request_by_name_nodev(node, "sysreset-gpio", 0,
> + &sysreset_gpio, GPIOD_IS_OUT)) {
> + debug("%s: could not find a /config/sysreset-gpio\n", __func__);
> + return;
> + }
> +
> + dm_gpio_set_value(&sysreset_gpio, 1);
> +}
> +#endif
> +
> +void spl_board_init(void)
> +{
> +#if defined(SPL_GPIO_SUPPORT)
> + struct rk3399_cru *cru = rockchip_get_cru();
> +
> + /*
> + * The RK3399 resets only 'almost all logic' (see also in the TRM
> + * "3.9.4 Global software reset"), when issuing a software reset.
> + * This may cause issues during boot-up for some configurations of
> + * the application software stack.
> + *
> + * To work around this, we test whether the last reset reason was
> + * a power-on reset and (if not) issue an overtemp-reset to reset
> + * the entire module.
> + *
> + * While this was previously fixed by modifying the various places
> + * that could generate a software reset (e.g. U-Boot's sysreset
> + * driver, the ATF or Linux), we now have it here to ensure that
> + * we no longer have to track this through the various components.
> + */
> + if (cru->glb_rst_st != 0)
> + rk3399_force_power_on_reset();
> +#endif
> +
> +#if defined(SPL_DM_REGULATOR)
> + /*
> + * Turning the eMMC and SPI back on (if disabled via the Qseven
> + * BIOS_ENABLE) signal is done through a always-on regulator).
> + */
> + if (regulators_enable_boot_on(false))
> + debug("%s: Cannot enable boot on regulator\n", __func__);
> +#endif
> +
> + preloader_console_init();
> +}
> +
> #ifdef CONFIG_SPL_LOAD_FIT
> int board_fit_config_name_match(const char *name)
> {
> diff --git a/board/rockchip/evb_rk3399/evb-rk3399.c b/board/rockchip/evb_rk3399/evb-rk3399.c
> index 769b5d146f..c600553ff6 100644
> --- a/board/rockchip/evb_rk3399/evb-rk3399.c
> +++ b/board/rockchip/evb_rk3399/evb-rk3399.c
> @@ -8,7 +8,6 @@
> #include <dm/pinctrl.h>
> #include <asm/arch-rockchip/periph.h>
> #include <power/regulator.h>
> -#include <spl.h>
>
> int board_init(void)
> {
> @@ -64,10 +63,3 @@ int board_init(void)
> out:
> return 0;
> }
> -
> -void spl_board_init(void)
> -{
> - preloader_console_init();
> -
> - return;
> -}
> diff --git a/board/theobroma-systems/puma_rk3399/puma-rk3399.c b/board/theobroma-systems/puma_rk3399/puma-rk3399.c
> index c6b509c109..251cd2d566 100644
> --- a/board/theobroma-systems/puma_rk3399/puma-rk3399.c
> +++ b/board/theobroma-systems/puma_rk3399/puma-rk3399.c
> @@ -13,10 +13,8 @@
> #include <dm/pinctrl.h>
> #include <dm/uclass-internal.h>
> #include <asm/io.h>
> -#include <asm/gpio.h>
> #include <asm/setup.h>
> #include <asm/arch-rockchip/clock.h>
> -#include <asm/arch-rockchip/cru_rk3399.h>
> #include <asm/arch-rockchip/hardware.h>
> #include <asm/arch-rockchip/grf_rk3399.h>
> #include <asm/arch-rockchip/periph.h>
> @@ -38,62 +36,6 @@ int board_init(void)
> return 0;
> }
>
> -static void rk3399_force_power_on_reset(void)
> -{
> - ofnode node;
> - struct gpio_desc sysreset_gpio;
> -
> - debug("%s: trying to force a power-on reset\n", __func__);
> -
> - node = ofnode_path("/config");
> - if (!ofnode_valid(node)) {
> - debug("%s: no /config node?\n", __func__);
> - return;
> - }
> -
> - if (gpio_request_by_name_nodev(node, "sysreset-gpio", 0,
> - &sysreset_gpio, GPIOD_IS_OUT)) {
> - debug("%s: could not find a /config/sysreset-gpio\n", __func__);
> - return;
> - }
> -
> - dm_gpio_set_value(&sysreset_gpio, 1);
> -}
> -
> -void spl_board_init(void)
> -{
> - int ret;
> - struct rk3399_cru *cru = rockchip_get_cru();
> -
> - /*
> - * The RK3399 resets only 'almost all logic' (see also in the TRM
> - * "3.9.4 Global software reset"), when issuing a software reset.
> - * This may cause issues during boot-up for some configurations of
> - * the application software stack.
> - *
> - * To work around this, we test whether the last reset reason was
> - * a power-on reset and (if not) issue an overtemp-reset to reset
> - * the entire module.
> - *
> - * While this was previously fixed by modifying the various places
> - * that could generate a software reset (e.g. U-Boot's sysreset
> - * driver, the ATF or Linux), we now have it here to ensure that
> - * we no longer have to track this through the various components.
> - */
> - if (cru->glb_rst_st != 0)
> - rk3399_force_power_on_reset();
> -
> - /*
> - * Turning the eMMC and SPI back on (if disabled via the Qseven
> - * BIOS_ENABLE) signal is done through a always-on regulator).
> - */
> - ret = regulators_enable_boot_on(false);
> - if (ret)
> - debug("%s: Cannot enable boot on regulator\n", __func__);
> -
> - preloader_console_init();
> -}
> -
> static void setup_macaddr(void)
> {
> #if CONFIG_IS_ENABLED(CMD_NET)
> diff --git a/board/vamrs/rock960_rk3399/rock960-rk3399.c b/board/vamrs/rock960_rk3399/rock960-rk3399.c
> index 018e4b55b8..2eb7120e84 100644
> --- a/board/vamrs/rock960_rk3399/rock960-rk3399.c
> +++ b/board/vamrs/rock960_rk3399/rock960-rk3399.c
> @@ -6,7 +6,6 @@
> #include <common.h>
> #include <dm.h>
> #include <power/regulator.h>
> -#include <spl.h>
>
> int board_init(void)
> {
> @@ -18,10 +17,3 @@ int board_init(void)
>
> return 0;
> }
> -
> -void spl_board_init(void)
> -{
> - preloader_console_init();
> -
> - return;
> -}