From dc643a843b5d510c04b2e222a1a4bd735d387f50 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 11 Jul 2018 14:04:51 +0200 Subject: [PATCH] clk: renesas: r8a77990: Correct RCLK handling According to R-Car Gen3 Hardware Manual Rev.1.00, R-Car E3 has the RCLK Frequency Control Register (RCKCR), which determines the OSC and RINT predivider values, and selection of the RCLK clock source between RINT and the On-Chip Oscillator. Hence change the OSC and RINT clock definitions to use the RCKCR divider, and add the missing On-Chip Oscillator and RCLK clock source switching logic. Signed-off-by: Geert Uytterhoeven Reviewed-by: Simon Horman --- drivers/clk/renesas/r8a77990-cpg-mssr.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/clk/renesas/r8a77990-cpg-mssr.c b/drivers/clk/renesas/r8a77990-cpg-mssr.c index 9e14f1486fbb..9437219efdd9 100644 --- a/drivers/clk/renesas/r8a77990-cpg-mssr.c +++ b/drivers/clk/renesas/r8a77990-cpg-mssr.c @@ -44,6 +44,8 @@ enum clk_ids { CLK_S2, CLK_S3, CLK_SDSRC, + CLK_RINT, + CLK_OCO, /* Module Clocks */ MOD_CLK_BASE @@ -72,6 +74,10 @@ static const struct cpg_core_clk r8a77990_core_clks[] __initconst = { DEF_FIXED(".s3", CLK_S3, CLK_PLL1, 6, 1), DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1, 2, 1), + DEF_DIV6_RO(".r", CLK_RINT, CLK_EXTAL, CPG_RCKCR, 32), + + DEF_RATE(".oco", CLK_OCO, 8 * 1000 * 1000), + /* Core Clock Outputs */ DEF_FIXED("za2", R8A77990_CLK_ZA2, CLK_PLL0D24, 1, 1), DEF_FIXED("za8", R8A77990_CLK_ZA8, CLK_PLL0D8, 1, 1), @@ -100,8 +106,8 @@ static const struct cpg_core_clk r8a77990_core_clks[] __initconst = { DEF_FIXED("cl", R8A77990_CLK_CL, CLK_PLL1, 48, 1), DEF_FIXED("cp", R8A77990_CLK_CP, CLK_EXTAL, 2, 1), DEF_FIXED("cpex", R8A77990_CLK_CPEX, CLK_EXTAL, 4, 1), - DEF_FIXED("osc", R8A77990_CLK_OSC, CLK_EXTAL, 384, 1), - DEF_FIXED("r", R8A77990_CLK_R, CLK_EXTAL, 1536, 1), + + DEF_DIV6_RO("osc", R8A77990_CLK_OSC, CLK_EXTAL, CPG_RCKCR, 8), DEF_GEN3_PE("s0d6c", R8A77990_CLK_S0D6C, CLK_S0, 6, CLK_PE, 2), DEF_GEN3_PE("s3d1c", R8A77990_CLK_S3D1C, CLK_S3, 1, CLK_PE, 1), @@ -111,6 +117,8 @@ static const struct cpg_core_clk r8a77990_core_clks[] __initconst = { DEF_DIV6P1("canfd", R8A77990_CLK_CANFD, CLK_PLL0D6, 0x244), DEF_DIV6P1("csi0", R8A77990_CLK_CSI0, CLK_PLL1D2, 0x00c), DEF_DIV6P1("mso", R8A77990_CLK_MSO, CLK_PLL1D2, 0x014), + + DEF_GEN3_RCKSEL("r", R8A77990_CLK_R, CLK_RINT, 1, CLK_OCO, 61 * 4), }; static const struct mssr_mod_clk r8a77990_mod_clks[] __initconst = {