arm: rockchip: Add RV1126 arch core support
Rockchip RV1126 is a high-performance vision processor SoC
for IPC/CVR, especially for AI related application.
Add arch core support for it.
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Change-Id: I22fde40ec375e3c6aba39808abf252edc45d4b04
diff --git a/arch/arm/mach-rockchip/rv1126/rv1126.c b/arch/arm/mach-rockchip/rv1126/rv1126.c
new file mode 100644
index 0000000..91554c9
--- /dev/null
+++ b/arch/arm/mach-rockchip/rv1126/rv1126.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019 Rockchip Electronics Co., Ltd
+ * Copyright (c) 2022 Edgeble AI Technologies Pvt. Ltd.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch-rockchip/bootrom.h>
+#include <asm/arch-rockchip/hardware.h>
+#include <asm/arch-rockchip/grf_rv1126.h>
+
+#define GRF_BASE 0xFE000000
+
+const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
+ [BROM_BOOTSOURCE_EMMC] = "/mmc@ffc50000",
+ [BROM_BOOTSOURCE_SD] = "/mmc@ffc60000",
+};
+
+/* GRF_GPIO3A_IOMUX_L */
+enum {
+ GPIO3A3_SHIFT = 12,
+ GPIO3A3_MASK = GENMASK(14, 12),
+ GPIO3A3_GPIO = 0,
+ GPIO3A3_UART2_RX_M1,
+ GPIO3A3_A7_JTAG_TMS_M1,
+
+ GPIO3A2_SHIFT = 8,
+ GPIO3A2_MASK = GENMASK(10, 8),
+ GPIO3A2_GPIO = 0,
+ GPIO3A2_UART2_TX_M1,
+ GPIO3A2_A7_JTAG_TCK_M1,
+};
+
+/* GRF_IOFUNC_CON2 */
+enum {
+ UART2_IO_SEL_SHIFT = 8,
+ UART2_IO_SEL_MASK = GENMASK(8, 8),
+ UART2_IO_SEL_M0 = 0,
+ UART2_IO_SEL_M1,
+};
+
+void board_debug_uart_init(void)
+{
+ static struct rv1126_grf * const grf = (void *)GRF_BASE;
+
+ /* Enable early UART2 channel m1 on the rv1126 */
+ rk_clrsetreg(&grf->iofunc_con2, UART2_IO_SEL_MASK,
+ UART2_IO_SEL_M1 << UART2_IO_SEL_SHIFT);
+
+ /* Switch iomux */
+ rk_clrsetreg(&grf->gpio3a_iomux_l,
+ GPIO3A3_MASK | GPIO3A2_MASK,
+ GPIO3A3_UART2_RX_M1 << GPIO3A3_SHIFT |
+ GPIO3A2_UART2_TX_M1 << GPIO3A2_SHIFT);
+}
+
+#ifndef CONFIG_TPL_BUILD
+int arch_cpu_init(void)
+{
+ return 0;
+}
+#endif