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rockchip: rk3368: spl: add SPL support

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Adds SPL support for the RK3368 (assuming that our TPL stage has
initialised DRAM and set up the memory firewall).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Philipp Tomsich 2017-06-12 10:33:20 +02:00
parent 9b0bc59366
commit fbbd38001f
2 changed files with 99 additions and 1 deletions
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2
arch/arm/mach-rockchip/Makefile
View file

@ -18,7 +18,7 @@ obj-spl-$(CONFIG_ROCKCHIP_RK3036) += rk3036-board-spl.o
obj-spl-$(CONFIG_ROCKCHIP_RK3188) += rk3188-board-spl.o
obj-spl-$(CONFIG_ROCKCHIP_RK322X) += rk322x-board-spl.o
obj-spl-$(CONFIG_ROCKCHIP_RK3288) += rk3288-board-spl.o
obj-spl-$(CONFIG_ROCKCHIP_RK3368) += rk3368-board-spl.o
obj-spl-$(CONFIG_ROCKCHIP_RK3368) += rk3368-board-spl.o spl-boot-order.o
obj-spl-$(CONFIG_ROCKCHIP_RK3399) += rk3399-board-spl.o spl-boot-order.o
ifeq ($(CONFIG_SPL_BUILD)$(CONFIG_TPL_BUILD),)

98
arch/arm/mach-rockchip/rk3368-board-spl.c Normal file
View file

@ -0,0 +1,98 @@
/*
* (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <debug_uart.h>
#include <dm.h>
#include <dm/pinctrl.h>
#include <ram.h>
#include <spl.h>
#include <asm/io.h>
#include <asm/arch/cru_rk3368.h>
#include <asm/arch/grf_rk3368.h>
#include <asm/arch/hardware.h>
#include <asm/arch/periph.h>
#include <asm/arch/timer.h>
DECLARE_GLOBAL_DATA_PTR;
/*
* The ARMv8 generic timer uses the STIMER1 as its clock-source.
* Set up the STIMER1 to free-running (i.e. auto-reload) to start
* the generic timer counting (if we don't do this, udelay will not
* work and block indefinitively).
*/
static void secure_timer_init(void)
{
struct rk_timer * const stimer1 =
(struct rk_timer * const)0xff830020;
const u32 TIMER_EN = BIT(0);
writel(~0u, &stimer1->timer_load_count0);
writel(~0u, &stimer1->timer_load_count1);
writel(TIMER_EN, &stimer1->timer_ctrl_reg);
}
void board_debug_uart_init(void)
{
}
void board_init_f(ulong dummy)
{
struct udevice *pinctrl;
struct udevice *dev;
int ret;
ret = spl_early_init();
if (ret) {
debug("spl_early_init() failed: %d\n", ret);
hang();
}
/* Make sure the ARMv8 generic timer counts */
secure_timer_init();
/* Set up our preloader console */
ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
if (ret) {
error("%s: pinctrl init failed: %d\n", __func__, ret);
hang();
}
ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART0);
if (ret) {
error("%s: failed to set up console UART\n", __func__);
hang();
}
preloader_console_init();
ret = uclass_get_device(UCLASS_RAM, 0, &dev);
if (ret) {
debug("DRAM init failed: %d\n", ret);
return;
}
}
u32 spl_boot_mode(const u32 boot_device)
{
return MMCSD_MODE_RAW;
}
u32 spl_boot_device(void)
{
return BOOT_DEVICE_MMC1;
}
#ifdef CONFIG_SPL_LOAD_FIT
int board_fit_config_name_match(const char *name)
{
/* Just empty function now - can't decide what to choose */
debug("%s: %s\n", __func__, name);
return 0;
}
#endif