On Thu, 26 Oct 2017, Kever Yang wrote:
rk3328 tpl suppose to init ddr sdram and then back to bootrom.
Signed-off-by: Kever Yang <kever.y...@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.toms...@theobroma-systems.com>
---
arch/arm/mach-rockchip/Makefile | 1 +
arch/arm/mach-rockchip/rk3328-board-tpl.c | 114 ++++++++++++++++++++++++++++++
2 files changed, 115 insertions(+)
create mode 100644 arch/arm/mach-rockchip/rk3328-board-tpl.c
diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile
index cc3a63e..49bdd36 100644
--- a/arch/arm/mach-rockchip/Makefile
+++ b/arch/arm/mach-rockchip/Makefile
@@ -14,6 +14,7 @@ obj-tpl-$(CONFIG_ROCKCHIP_BROM_HELPER) += bootrom.o
save_boot_param.o
obj-tpl-$(CONFIG_ROCKCHIP_RK3188) += rk3188-board-tpl.o
obj-tpl-$(CONFIG_ROCKCHIP_RK3368) += rk3368-board-tpl.o
obj-tpl-$(CONFIG_ROCKCHIP_RK322X) += rk322x-board-tpl.o
+obj-tpl-$(CONFIG_ROCKCHIP_RK3328) += rk3328-board-tpl.o
obj-spl-$(CONFIG_ROCKCHIP_RK3036) += rk3036-board-spl.o
obj-spl-$(CONFIG_ROCKCHIP_RK3188) += rk3188-board-spl.o
diff --git a/arch/arm/mach-rockchip/rk3328-board-tpl.c
b/arch/arm/mach-rockchip/rk3328-board-tpl.c
new file mode 100644
index 0000000..1c74ff2
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk3328-board-tpl.c
@@ -0,0 +1,114 @@
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <debug_uart.h>
+#include <dm.h>
+#include <fdtdec.h>
+#include <led.h>
+#include <malloc.h>
+#include <mmc.h>
+#include <ram.h>
+#include <spl.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <asm/arch/bootrom.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/periph.h>
+#include <asm/arch/sdram.h>
+#include <asm/arch/timer.h>
+#include <dm/pinctrl.h>
+#include <dm/root.h>
+#include <dm/test.h>
+#include <dm/util.h>
+#include <power/regulator.h>
+#include <asm/arch/grf_rk3328.h>
+#include <asm/arch/uart.h>
+
+#define CRU_BASE 0xFF440000
+#define GRF_BASE 0xFF100000
+#define UART2_BASE 0xFF130000
+#define STIMER_BASE_ADDR 0xFF1d0000
+#define CPU_TIMER_BASE (STIMER_BASE_ADDR + 0x20)
+
+void board_timer_init(void)
+{
+ /* Initialize CNTFRQ */
+ __asm__ volatile ("LDR x0,=24000000");
+ __asm__ volatile ("MSR CNTFRQ_EL0, x0");
This should be done by setting COUNTER_FREQUENCY and having start.s take
care of this...
+
+ /* Enable STimer1 for core */
+ writel(0x0, CPU_TIMER_BASE + 0x0010);
+ writel(0xffffffff, CPU_TIMER_BASE + 0x0000);
+ writel(0xffffffff, CPU_TIMER_BASE + 0x0004);
+ writel(0x1, CPU_TIMER_BASE + 0x0010);
Can we use the DM timer (same as for the RK3368) and not initialise the
secure timer here? We should keep U-Boot and this initialisation
separate, as ATF will take care of this (and U-Boot can just use a regular
tick timer).
+}
+
+void board_debug_uart_init(void)
+{
+ struct rk3328_grf_regs * const grf = (void *)GRF_BASE;
+ struct rk_uart * const uart = (void *)UART2_BASE;
+
+ /* uart_sel_clk default select 24MHz */
+ writel((3 << (8 + 16)) | (2 << 8), CRU_BASE + 0x148);
+
+ /* init uart baud rate 1500000 */
+ writel(0x83, &uart->lcr);
+ writel(0x1, &uart->rbr);
+ writel(0x3, &uart->lcr);
+
+ /* Enable early UART2 */
+ rk_clrsetreg(&grf->com_iomux,
+ IOMUX_SEL_UART2_MASK,
+ IOMUX_SEL_UART2_M1 << IOMUX_SEL_UART2_SHIFT);
+ rk_clrsetreg(&grf->gpio2a_iomux,
+ GPIO2A0_SEL_MASK,
+ GPIO2A0_UART2_TX_M1 << GPIO2A0_SEL_SHIFT);
+ rk_clrsetreg(&grf->gpio2a_iomux,
+ GPIO2A1_SEL_MASK,
+ GPIO2A1_UART2_RX_M1 << GPIO2A1_SEL_SHIFT);
+
+ /* enable FIFO */
+ writel(0x1, &uart->sfe);
+}
+
+void board_return_to_bootrom(void)
+{
+ back_to_bootrom();
+}
+
+u32 spl_boot_device(void)
+{
+ return BOOT_DEVICE_BOOTROM;
+}
+
+
+void board_init_f(ulong dummy)
+{
+ struct udevice *dev;
+ int ret;
+
+#define EARLY_UART
+#ifdef EARLY_UART
+ debug_uart_init();
+ printascii("U-Boot TPL board init\n");
+#endif
+
+ board_timer_init();
If we use the DM timer, we don't have to do this any longer (see the
RK3368 TPL support code).
+
+ ret = spl_early_init();
+ if (ret) {
+ printf("spl_early_init() failed: %d\n", ret);
+ hang();
+ }
+
+ ret = uclass_get_device(UCLASS_RAM, 0, &dev);
+ if (ret) {
+ printf("DRAM init failed: %d\n", ret);
+ return;
+ }
+}
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