ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/uboot/arch/powerpc/cpu/mpc5xx/serial.c b/marvell/uboot/arch/powerpc/cpu/mpc5xx/serial.c
new file mode 100644
index 0000000..a2a8d94
--- /dev/null
+++ b/marvell/uboot/arch/powerpc/cpu/mpc5xx/serial.c
@@ -0,0 +1,168 @@
+/*
+ * (C) Copyright 2003
+ * Martin Winistoerfer, martinwinistoerfer@gmx.ch.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/*
+ * File: serial.c
+ *
+ * Discription: Serial interface driver for SCI1 and SCI2.
+ * Since this code will be called from ROM use
+ * only non-static local variables.
+ *
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <command.h>
+#include <mpc5xx.h>
+#include <serial.h>
+#include <linux/compiler.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Local functions
+ */
+
+static int ready_to_send(void)
+{
+ volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
+ volatile short status;
+
+ do {
+#if defined(CONFIG_5xx_CONS_SCI1)
+ status = immr->im_qsmcm.qsmcm_sc1sr;
+#else
+ status = immr->im_qsmcm.qsmcm_sc2sr;
+#endif
+
+#if defined(CONFIG_WATCHDOG)
+ reset_5xx_watchdog (immr);
+#endif
+ } while ((status & SCI_TDRE) == 0);
+ return 1;
+
+}
+
+/*
+ * Minimal global serial functions needed to use one of the SCI modules.
+ */
+
+static int mpc5xx_serial_init(void)
+{
+ volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
+
+ serial_setbrg();
+
+#if defined(CONFIG_5xx_CONS_SCI1)
+ /* 10-Bit, 1 start bit, 8 data bit, no parity, 1 stop bit */
+ immr->im_qsmcm.qsmcm_scc1r1 = SCI_M_10;
+ immr->im_qsmcm.qsmcm_scc1r1 = SCI_TE | SCI_RE;
+#else
+ immr->im_qsmcm.qsmcm_scc2r1 = SCI_M_10;
+ immr->im_qsmcm.qsmcm_scc2r1 = SCI_TE | SCI_RE;
+#endif
+ return 0;
+}
+
+static void mpc5xx_serial_putc(const char c)
+{
+ volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
+
+ /* Test for completition */
+ if(ready_to_send()) {
+#if defined(CONFIG_5xx_CONS_SCI1)
+ immr->im_qsmcm.qsmcm_sc1dr = (short)c;
+#else
+ immr->im_qsmcm.qsmcm_sc2dr = (short)c;
+#endif
+ if(c == '\n') {
+ if(ready_to_send());
+#if defined(CONFIG_5xx_CONS_SCI1)
+ immr->im_qsmcm.qsmcm_sc1dr = (short)'\r';
+#else
+ immr->im_qsmcm.qsmcm_sc2dr = (short)'\r';
+#endif
+ }
+ }
+}
+
+static int mpc5xx_serial_getc(void)
+{
+ volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
+ volatile short status;
+ unsigned char tmp;
+
+ /* New data ? */
+ do {
+#if defined(CONFIG_5xx_CONS_SCI1)
+ status = immr->im_qsmcm.qsmcm_sc1sr;
+#else
+ status = immr->im_qsmcm.qsmcm_sc2sr;
+#endif
+
+#if defined(CONFIG_WATCHDOG)
+ reset_5xx_watchdog (immr);
+#endif
+ } while ((status & SCI_RDRF) == 0);
+
+ /* Read data */
+#if defined(CONFIG_5xx_CONS_SCI1)
+ tmp = (unsigned char)(immr->im_qsmcm.qsmcm_sc1dr & SCI_SCXDR_MK);
+#else
+ tmp = (unsigned char)( immr->im_qsmcm.qsmcm_sc2dr & SCI_SCXDR_MK);
+#endif
+ return tmp;
+}
+
+static int mpc5xx_serial_tstc(void)
+{
+ volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
+ short status;
+
+ /* New data character ? */
+#if defined(CONFIG_5xx_CONS_SCI1)
+ status = immr->im_qsmcm.qsmcm_sc1sr;
+#else
+ status = immr->im_qsmcm.qsmcm_sc2sr;
+#endif
+ return (status & SCI_RDRF);
+}
+
+static void mpc5xx_serial_setbrg(void)
+{
+ volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
+ short scxbr;
+
+ /* Set baudrate */
+ scxbr = (gd->cpu_clk / (32 * gd->baudrate));
+#if defined(CONFIG_5xx_CONS_SCI1)
+ immr->im_qsmcm.qsmcm_scc1r0 = (scxbr & SCI_SCXBR_MK);
+#else
+ immr->im_qsmcm.qsmcm_scc2r0 = (scxbr & SCI_SCXBR_MK);
+#endif
+}
+
+static struct serial_device mpc5xx_serial_drv = {
+ .name = "mpc5xx_serial",
+ .start = mpc5xx_serial_init,
+ .stop = NULL,
+ .setbrg = mpc5xx_serial_setbrg,
+ .putc = mpc5xx_serial_putc,
+ .puts = default_serial_puts,
+ .getc = mpc5xx_serial_getc,
+ .tstc = mpc5xx_serial_tstc,
+};
+
+void mpc5xx_serial_initialize(void)
+{
+ serial_register(&mpc5xx_serial_drv);
+}
+
+__weak struct serial_device *default_serial_console(void)
+{
+ return &mpc5xx_serial_drv;
+}