net: gem: Allow to set the MAC from an EEPROM

[oweals/u-boot.git] / arch / arm / mach-tegra / clock.c

diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
index f9dfcd04115a1267ac39080fddc2feea255ad5b2..c50d56dc888b5f612604832b22045b317cfdc93c 100644 (file)
--- a/arch/arm/mach-tegra/clock.c
+++ b/arch/arm/mach-tegra/clock.c
@@ -1,17 +1,7 @@
 /*
  * Copyright (c) 2010-2015, NVIDIA CORPORATION.  All rights reserved.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier:    GPL-2.0
  */
 
 /* Tegra SoC common clock control functions */
@@ -461,6 +451,11 @@ void reset_cmplx_set_enable(int cpu, int which, int reset)
                writel(mask, &clkrst->crc_cpu_cmplx_clr);
 }
 
+unsigned int __weak clk_m_get_rate(unsigned int parent_rate)
+{
+       return parent_rate;
+}
+
 unsigned clock_get_rate(enum clock_id clkid)
 {
        struct clk_pll *pll;
@@ -472,6 +467,9 @@ unsigned clock_get_rate(enum clock_id clkid)
        if (clkid == CLOCK_ID_OSC)
                return parent_rate;
 
+       if (clkid == CLOCK_ID_CLK_M)
+               return clk_m_get_rate(parent_rate);
+
        pll = get_pll(clkid);
        if (!pll)
                return 0;
@@ -483,7 +481,16 @@ unsigned clock_get_rate(enum clock_id clkid)
         * PLLU uses p_mask/p_shift for VCO on all but T210,
         * T210 uses normal DIVP. Handled in pllinfo table.
         */
-       divm <<= (base >> pllinfo->p_shift) & pllinfo->p_mask;
+#ifdef CONFIG_TEGRA210
+       /*
+        * PLLP's primary output (pllP_out0) on T210 is the VCO, and divp is
+        * not applied. pllP_out2 does have divp applied. All other pllP_outN
+        * are divided down from pllP_out0. We only support pllP_out0 in
+        * U-Boot at the time of writing this comment.
+        */
+       if (clkid != CLOCK_ID_PERIPH)
+#endif
+               divm <<= (base >> pllinfo->p_shift) & pllinfo->p_mask;
        do_div(rate, divm);
        return rate;
 }
@@ -613,8 +620,10 @@ void clock_init(void)
        pll_rate[CLOCK_ID_XCPU] = clock_get_rate(CLOCK_ID_XCPU);
        pll_rate[CLOCK_ID_SFROM32KHZ] = 32768;
        pll_rate[CLOCK_ID_OSC] = clock_get_rate(CLOCK_ID_OSC);
+       pll_rate[CLOCK_ID_CLK_M] = clock_get_rate(CLOCK_ID_CLK_M);
 
        debug("Osc = %d\n", pll_rate[CLOCK_ID_OSC]);
+       debug("CLKM = %d\n", pll_rate[CLOCK_ID_CLK_M]);
        debug("PLLC = %d\n", pll_rate[CLOCK_ID_CGENERAL]);
        debug("PLLM = %d\n", pll_rate[CLOCK_ID_MEMORY]);
        debug("PLLP = %d\n", pll_rate[CLOCK_ID_PERIPH]);