diff options
| -rw-r--r-- | target/linux/mvebu/patches-5.4/803-Revert-cpufreq-armada-37xx-Fix-setting-TBG-parent-fo.patch | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/target/linux/mvebu/patches-5.4/803-Revert-cpufreq-armada-37xx-Fix-setting-TBG-parent-fo.patch b/target/linux/mvebu/patches-5.4/803-Revert-cpufreq-armada-37xx-Fix-setting-TBG-parent-fo.patch deleted file mode 100644 index 65184df584..0000000000 --- a/target/linux/mvebu/patches-5.4/803-Revert-cpufreq-armada-37xx-Fix-setting-TBG-parent-fo.patch +++ /dev/null @@ -1,107 +0,0 @@ -From 35639bac13927d1476398b740b11cbed0ee3ddb2 Mon Sep 17 00:00:00 2001 -From: Robert Marko <robert.marko@sartura.hr> -Date: Tue, 18 May 2021 13:24:30 +0200 -Subject: [PATCH] Revert "cpufreq: armada-37xx: Fix setting TBG parent for load - levels" - -This reverts commit a13b110e7c9e0dc2edcc7a19d4255fc88abd83cc. - -This patch actually corrects the things so that 1 or 1.2GHz models would -actually get scaled to their native frequency. - -However, due to a AVS setting voltages too low this will cause random -crashes on 1.2GHz models. - -So, until a new safe for everybody voltage is agreed on -lets revert the patch. - -Signed-off-by: Robert Marko <robert.marko@sartura.hr> ---- - drivers/cpufreq/armada-37xx-cpufreq.c | 35 +++++++++------------------ - 1 file changed, 12 insertions(+), 23 deletions(-) - ---- a/drivers/cpufreq/armada-37xx-cpufreq.c -+++ b/drivers/cpufreq/armada-37xx-cpufreq.c -@@ -25,10 +25,6 @@ - - #include "cpufreq-dt.h" - --/* Clk register set */ --#define ARMADA_37XX_CLK_TBG_SEL 0 --#define ARMADA_37XX_CLK_TBG_SEL_CPU_OFF 22 -- - /* Power management in North Bridge register set */ - #define ARMADA_37XX_NB_L0L1 0x18 - #define ARMADA_37XX_NB_L2L3 0x1C -@@ -126,15 +122,10 @@ static struct armada_37xx_dvfs *armada_3 - * will be configured then the DVFS will be enabled. - */ - static void __init armada37xx_cpufreq_dvfs_setup(struct regmap *base, -- struct regmap *clk_base, u8 *divider) -+ struct clk *clk, u8 *divider) - { -- u32 cpu_tbg_sel; - int load_lvl; -- -- /* Determine to which TBG clock is CPU connected */ -- regmap_read(clk_base, ARMADA_37XX_CLK_TBG_SEL, &cpu_tbg_sel); -- cpu_tbg_sel >>= ARMADA_37XX_CLK_TBG_SEL_CPU_OFF; -- cpu_tbg_sel &= ARMADA_37XX_NB_TBG_SEL_MASK; -+ struct clk *parent; - - for (load_lvl = 0; load_lvl < LOAD_LEVEL_NR; load_lvl++) { - unsigned int reg, mask, val, offset = 0; -@@ -153,11 +144,6 @@ static void __init armada37xx_cpufreq_dv - mask = (ARMADA_37XX_NB_CLK_SEL_MASK - << ARMADA_37XX_NB_CLK_SEL_OFF); - -- /* Set TBG index, for all levels we use the same TBG */ -- val = cpu_tbg_sel << ARMADA_37XX_NB_TBG_SEL_OFF; -- mask = (ARMADA_37XX_NB_TBG_SEL_MASK -- << ARMADA_37XX_NB_TBG_SEL_OFF); -- - /* - * Set cpu divider based on the pre-computed array in - * order to have balanced step. -@@ -176,6 +162,14 @@ static void __init armada37xx_cpufreq_dv - - regmap_update_bits(base, reg, mask, val); - } -+ -+ /* -+ * Set cpu clock source, for all the level we keep the same -+ * clock source that the one already configured. For this one -+ * we need to use the clock framework -+ */ -+ parent = clk_get_parent(clk); -+ clk_set_parent(clk, parent); - } - - /* -@@ -401,16 +395,11 @@ static int __init armada37xx_cpufreq_dri - struct platform_device *pdev; - unsigned long freq; - unsigned int cur_frequency, base_frequency; -- struct regmap *nb_clk_base, *nb_pm_base, *avs_base; -+ struct regmap *nb_pm_base, *avs_base; - struct device *cpu_dev; - int load_lvl, ret; - struct clk *clk, *parent; - -- nb_clk_base = -- syscon_regmap_lookup_by_compatible("marvell,armada-3700-periph-clock-nb"); -- if (IS_ERR(nb_clk_base)) -- return -ENODEV; -- - nb_pm_base = - syscon_regmap_lookup_by_compatible("marvell,armada-3700-nb-pm"); - -@@ -487,7 +476,7 @@ static int __init armada37xx_cpufreq_dri - armada37xx_cpufreq_avs_configure(avs_base, dvfs); - armada37xx_cpufreq_avs_setup(avs_base, dvfs); - -- armada37xx_cpufreq_dvfs_setup(nb_pm_base, nb_clk_base, dvfs->divider); -+ armada37xx_cpufreq_dvfs_setup(nb_pm_base, clk, dvfs->divider); - clk_put(clk); - - for (load_lvl = ARMADA_37XX_DVFS_LOAD_0; load_lvl < LOAD_LEVEL_NR; |