[src/trunk]: src/sys/arch/arm/samsung Get baud rate from sclk_uartN instead o...

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6ba8607aaf40
branches:  trunk
changeset: 824821:6ba8607aaf40
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Mon Jun 19 21:58:13 2017 +0000

description:
Get baud rate from sclk_uartN instead of uartN. Print IRQ number at attach.

diffstat:

 sys/arch/arm/samsung/exynos_sscom.c |  28 +++++++++++++++++++++-------
 1 files changed, 21 insertions(+), 7 deletions(-)

diffs (78 lines):

diff -r d67eb5486981 -r 6ba8607aaf40 sys/arch/arm/samsung/exynos_sscom.c
--- a/sys/arch/arm/samsung/exynos_sscom.c       Mon Jun 19 20:52:20 2017 +0000
+++ b/sys/arch/arm/samsung/exynos_sscom.c       Mon Jun 19 21:58:13 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: exynos_sscom.c,v 1.9 2017/06/10 23:23:05 jmcneill Exp $ */
+/*     $NetBSD: exynos_sscom.c,v 1.10 2017/06/19 21:58:13 jmcneill Exp $ */
 
 /*
  * Copyright (c) 2014 Reinoud Zandijk
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: exynos_sscom.c,v 1.9 2017/06/10 23:23:05 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: exynos_sscom.c,v 1.10 2017/06/19 21:58:13 jmcneill Exp $");
 
 #include "opt_sscom.h"
 #include "opt_ddb.h"
@@ -155,6 +155,7 @@
        bus_space_tag_t bst = faa->faa_bst;
        bus_space_handle_t bsh;
        struct clk *clk_uart, *clk_uart_baud0;
+       char intrstr[128];
        bus_addr_t addr;
        bus_size_t size;
 
@@ -169,13 +170,19 @@
        }
 
        clk_uart = fdtbus_clock_get(phandle, "uart");
+       if (clk_uart != NULL) {
+               if (clk_enable(clk_uart) != 0) {
+                       aprint_error(": couldn't enable uart clock\n");
+                       return;
+               }
+       }
        clk_uart_baud0 = fdtbus_clock_get(phandle, "clk_uart_baud0");
-       if (clk_uart == NULL || clk_uart_baud0 == NULL) {
-               aprint_error(": couldn't get clocks\n");
+       if (clk_uart_baud0 == NULL) {
+               aprint_error(": couldn't get baud clock\n");
                return;
        }
-       if (clk_enable(clk_uart) != 0 || clk_enable(clk_uart_baud0) != 0) {
-               aprint_error(": couldn't enable clocks\n");
+       if (clk_enable(clk_uart_baud0) != 0) {
+               aprint_error(": couldn't enable baud clock\n");
                return;
        }
 
@@ -183,7 +190,7 @@
        sc->sc_iot = bst = faa->faa_bst;
        sc->sc_ioh = bsh;
        sc->sc_unit = phandle;
-       sc->sc_frequency = clk_get_rate(clk_uart);
+       sc->sc_frequency = clk_get_rate(clk_uart_baud0);
 
        sc->sc_change_txrx_interrupts = exynos_change_txrx_interrupts;
        sc->sc_clear_interrupts = exynos_clear_interrupts;
@@ -197,11 +204,18 @@
 
        aprint_normal("\n");
 
+       if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) {
+               aprint_error_dev(self, "failed to decode interrupt\n");
+               return;
+       }
+
        void *ih = fdtbus_intr_establish(phandle, 0, IPL_SERIAL,
            FDT_INTR_MPSAFE, sscomintr, sc);
        if (ih == NULL)
                aprint_error_dev(self, "failed to establish interrupt\n");
 
+       aprint_normal_dev(self, "interrupting on %s\n", intrstr);
+
        sscom_attach_subr(sc);
 
 }