[src/trunk]: src/sys/arch/mips/ingenic - fix pclk calculation

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

details:   https://anonhg.NetBSD.org/src/rev/c987a8e11ed0
branches:  trunk
changeset: 808098:c987a8e11ed0
user:      macallan <macallan%NetBSD.org@localhost>
date:      Mon May 04 12:23:15 2015 +0000

description:
- fix pclk calculation
- report CPU clock
- pass mclk to child devices
- wire up pins for MSC / sdmmc

diffstat:

 sys/arch/mips/ingenic/apbus.c       |  51 ++++++++++++++++++++++++++++++------
 sys/arch/mips/ingenic/ingenic_var.h |   3 +-
 2 files changed, 44 insertions(+), 10 deletions(-)

diffs (118 lines):

diff -r af1d50ded4a3 -r c987a8e11ed0 sys/arch/mips/ingenic/apbus.c
--- a/sys/arch/mips/ingenic/apbus.c     Mon May 04 12:16:24 2015 +0000
+++ b/sys/arch/mips/ingenic/apbus.c     Mon May 04 12:23:15 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: apbus.c,v 1.13 2015/04/28 15:08:07 macallan Exp $ */
+/*     $NetBSD: apbus.c,v 1.14 2015/05/04 12:23:15 macallan Exp $ */
 
 /*-
  * Copyright (c) 2014 Michael Lorenz
@@ -29,7 +29,7 @@
 /* catch-all for on-chip peripherals */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: apbus.c,v 1.13 2015/04/28 15:08:07 macallan Exp $");
+__KERNEL_RCSID(0, "$NetBSD: apbus.c,v 1.14 2015/05/04 12:23:15 macallan Exp $");
 
 #include "locators.h"
 #define        _MIPS_BUS_DMA_PRIVATE
@@ -118,7 +118,7 @@
 void
 apbus_attach(device_t parent, device_t self, void *aux)
 {
-       uint32_t reg, mpll, m, n, p, mclk, pclk, pdiv;
+       uint32_t reg, mpll, m, n, p, mclk, pclk, pdiv, cclk, cdiv;
        aprint_normal("\n");
 
        /* should have been called early on */
@@ -140,12 +140,14 @@
        mclk = (48000 * (m + 1) / (n + 1)) / (p + 1);
 
        reg = readreg(JZ_CPCCR);
-       pdiv = (reg & JZ_PDIV_M) >> JZ_PDIV_S;
+       pdiv = ((reg & JZ_PDIV_M) >> JZ_PDIV_S) + 1;
        pclk = mclk / pdiv;
-#ifdef INGENIC_DEBUG
-       printf("mclk %d kHz\n", mclk);
-       printf("pclk %d kHz\n", pclk);
-#endif
+       cdiv = (reg & JZ_CDIV_M) + 1;
+       cclk = mclk / cdiv;
+
+       aprint_debug_dev(self, "mclk %d kHz\n", mclk);
+       aprint_debug_dev(self, "pclk %d kHz\n", pclk);
+       aprint_debug_dev(self, "CPU clock %d kHz\n", cclk);
 
        /* enable clocks */
        reg = readreg(JZ_CLKGR1);
@@ -157,7 +159,7 @@
        reg |= OPCR_SPENDN0 | OPCR_SPENDN1;
        writereg(JZ_OPCR, reg);
 
-       /* setup GPIOs for I2C buses */
+       /* wire up GPIOs */
        /* iic0 */
        gpio_as_dev0(3, 30);
        gpio_as_dev0(3, 31);
@@ -181,6 +183,36 @@
        gpio_as_dev0(5, 24);
        gpio_as_dev0(5, 25);
 
+       /* MSC0 */
+       gpio_as_dev1(0, 4);
+       gpio_as_dev1(0, 5);
+       gpio_as_dev1(0, 6);
+       gpio_as_dev1(0, 7);
+       gpio_as_dev1(0, 18);
+       gpio_as_dev1(0, 19);
+       gpio_as_dev1(0, 20);
+       gpio_as_dev1(0, 21);
+       gpio_as_dev1(0, 22);
+       gpio_as_dev1(0, 23);
+       gpio_as_dev1(0, 24);
+       gpio_as_intr_level_low(5, 20);  /* card detect */
+
+       /* MSC1, for wifi/bt */
+       gpio_as_dev0(3, 20);
+       gpio_as_dev0(3, 21);
+       gpio_as_dev0(3, 22);
+       gpio_as_dev0(3, 23);
+       gpio_as_dev0(3, 24);
+       gpio_as_dev0(3, 25);
+
+       /* MSC2, on expansion header */
+       gpio_as_dev0(1, 20);
+       gpio_as_dev0(1, 21);
+       gpio_as_dev0(1, 28);
+       gpio_as_dev0(1, 29);
+       gpio_as_dev0(1, 30);
+       gpio_as_dev0(1, 31);
+
 #ifdef INGENIC_DEBUG
        printf("JZ_CLKGR0 %08x\n", readreg(JZ_CLKGR0));
        printf("JZ_CLKGR1 %08x\n", readreg(JZ_CLKGR1));
@@ -199,6 +231,7 @@
                aa.aa_dmat = &apbus_dmat;
                aa.aa_bst = apbus_memt;
                aa.aa_pclk = pclk;
+               aa.aa_mclk = mclk;
 
                /* enable clocks as needed */
                if (adv->clk0 != 0) {
diff -r af1d50ded4a3 -r c987a8e11ed0 sys/arch/mips/ingenic/ingenic_var.h
--- a/sys/arch/mips/ingenic/ingenic_var.h       Mon May 04 12:16:24 2015 +0000
+++ b/sys/arch/mips/ingenic/ingenic_var.h       Mon May 04 12:23:15 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ingenic_var.h,v 1.3 2015/03/25 11:25:10 macallan Exp $ */
+/*     $NetBSD: ingenic_var.h,v 1.4 2015/05/04 12:23:15 macallan Exp $ */
 
 /*-
  * Copyright (c) 2014 Michael Lorenz
@@ -38,6 +38,7 @@
        bus_addr_t      aa_addr;
        uint32_t        aa_irq;
        uint32_t        aa_pclk;        /* PCLK in kHz */
+       uint32_t        aa_mclk;        /* MCLK in kHz */
 };
 
 extern bus_space_tag_t ingenic_memt;