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-rw-r--r--payloads/libpayload/drivers/Makefile.inc3
-rw-r--r--payloads/libpayload/drivers/serial/rk_serial.c115
-rw-r--r--payloads/libpayload/drivers/timer/rktimer.c46
3 files changed, 163 insertions, 1 deletions
diff --git a/payloads/libpayload/drivers/Makefile.inc b/payloads/libpayload/drivers/Makefile.inc
index 538a8a61c4..0fc2faa604 100644
--- a/payloads/libpayload/drivers/Makefile.inc
+++ b/payloads/libpayload/drivers/Makefile.inc
@@ -37,7 +37,7 @@ libc-$(CONFIG_LP_8250_SERIAL_CONSOLE) += serial/8250.c
libc-$(CONFIG_LP_S5P_SERIAL_CONSOLE) += serial/s5p.c
libc-$(CONFIG_LP_TEGRA_SERIAL_CONSOLE) += serial/tegra.c
libc-$(CONFIG_LP_IPQ806X_SERIAL_CONSOLE) += serial/ipq806x.c
-
+libc-$(CONFIG_LP_RK_SERIAL_CONSOLE) += serial/rk_serial.c
libc-$(CONFIG_LP_PC_KEYBOARD) += keyboard.c
libc-$(CONFIG_LP_CBMEM_CONSOLE) += cbmem_console.c
@@ -50,6 +50,7 @@ libc-$(CONFIG_LP_TIMER_MCT) += timer/mct.c
libc-$(CONFIG_LP_TIMER_RDTSC) += timer/rdtsc.c
libc-$(CONFIG_LP_TIMER_TEGRA_1US) += timer/tegra_1us.c
libc-$(CONFIG_LP_TIMER_IPQ806X) += timer/ipq806x.c
+libc-$(CONFIG_LP_TIMER_RK) += timer/rktimer.c
# Video console drivers
libc-$(CONFIG_LP_VIDEO_CONSOLE) += video/video.c
diff --git a/payloads/libpayload/drivers/serial/rk_serial.c b/payloads/libpayload/drivers/serial/rk_serial.c
new file mode 100644
index 0000000000..91a6e1bde9
--- /dev/null
+++ b/payloads/libpayload/drivers/serial/rk_serial.c
@@ -0,0 +1,115 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Rockchip Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <libpayload-config.h>
+#include <libpayload.h>
+struct rk_uart {
+ union {
+ u32 uart_thr; /* Transmit holding register. */
+ u32 uart_rbr; /* Receive buffer register. */
+ u32 uart_dll; /* Divisor latch lsb. */
+ };
+ union {
+ u32 uart_ier; /* Interrupt enable register. */
+ u32 uart_dlh; /* Divisor latch msb. */
+ };
+ union {
+ uint32_t uart_iir; /* Interrupt identification register. */
+ uint32_t uart_fcr; /* FIFO control register. */
+ };
+ u32 uart_lcr;
+ u32 uart_mcr;
+ u32 uart_lsr;
+ u32 uart_msr;
+ u32 uart_scr;
+ u32 reserved1[(0x30 - 0x20) / 4];
+ u32 uart_srbr[(0x70 - 0x30) / 4];
+ u32 uart_far;
+ u32 uart_tfr;
+ u32 uart_rfw;
+ u32 uart_usr;
+ u32 uart_tfl;
+ u32 uart_rfl;
+ u32 uart_srr;
+ u32 uart_srts;
+ u32 uart_sbcr;
+ u32 uart_sdmam;
+ u32 uart_sfe;
+ u32 uart_srt;
+ u32 uart_stet;
+ u32 uart_htx;
+ u32 uart_dmasa;
+ u32 reserver2[(0xf4 - 0xac) / 4];
+ u32 uart_cpr;
+ u32 uart_ucv;
+ u32 uart_ctr;
+};
+enum {
+ UART_LSR_DR = 0x1 << 0, /* Data ready. */
+ UART_LSR_OE = 0x1 << 1, /* Overrun. */
+ UART_LSR_PE = 0x1 << 2, /* Parity error. */
+ UART_LSR_FE = 0x1 << 3, /* Framing error. */
+ UART_LSR_BI = 0x1 << 4, /* Break. */
+ UART_LSR_THRE = 0x1 << 5, /* Xmit holding register empty. */
+ UART_LSR_TEMT = 0x1 << 6, /* Xmitter empty. */
+ UART_LSR_ERR = 0x1 << 7 /* Error. */
+};
+
+static struct rk_uart *uart_regs;
+void serial_putchar(unsigned int c)
+{
+ while (!(readl(&uart_regs->uart_lsr) & UART_LSR_THRE));
+ writel((c & 0xff), &uart_regs->uart_thr);
+ if (c == '\n')
+ serial_putchar('\r');
+}
+
+int serial_havechar(void)
+{
+ uint8_t lsr = readl(&uart_regs->uart_lsr);
+ return (lsr & UART_LSR_DR) == UART_LSR_DR;
+}
+
+int serial_getchar(void)
+{
+ while (!serial_havechar());
+ return readl(&uart_regs->uart_rbr)&0xff;
+}
+
+static struct console_input_driver consin = {
+ .havekey = &serial_havechar,
+ .getchar = &serial_getchar
+};
+
+static struct console_output_driver consout = {.putchar = &serial_putchar
+};
+
+void serial_init(void)
+{
+ if (!lib_sysinfo.serial || !lib_sysinfo.serial->baseaddr)
+ return;
+
+ uart_regs = (struct rk_uart *)lib_sysinfo.serial->baseaddr;
+}
+
+void serial_console_init(void)
+{
+ serial_init();
+ console_add_input_driver(&consin);
+ console_add_output_driver(&consout);
+}
diff --git a/payloads/libpayload/drivers/timer/rktimer.c b/payloads/libpayload/drivers/timer/rktimer.c
new file mode 100644
index 0000000000..040ac32fa2
--- /dev/null
+++ b/payloads/libpayload/drivers/timer/rktimer.c
@@ -0,0 +1,46 @@
+
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Rockchip Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <arch/io.h>
+#include <libpayload.h>
+#include <stdint.h>
+struct rk_timer {
+ u32 timer_load_count0;
+ u32 timer_load_count1;
+ u32 timer_curr_value0;
+ u32 timer_curr_value1;
+ u32 timer_ctrl_reg;
+ u32 timer_int_status;
+};
+
+uint64_t timer_hz(void)
+{
+ return 24000000;
+}
+
+uint64_t timer_raw_value(void)
+{
+ uint64_t upper;
+ uint64_t lower;
+ struct rk_timer *rk_timer;
+ rk_timer = (struct rk_timer *) CONFIG_LP_TIMER_RK_ADDRESS;
+ lower = (uint64_t) rk_timer->timer_curr_value0;
+ upper = (uint64_t) rk_timer->timer_curr_value1;
+ return (upper << 32) | lower;
+}