From 1960b0103420a74ae5b154ed8684785036e2235b Mon Sep 17 00:00:00 2001 From: Kever Yang Date: Mon, 15 May 2017 20:52:16 +0800 Subject: rockchip: clock: rk3036: some fix according TRM MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit - hclk/pclk_div range　should use '<=' instead of '<' - use GPLL for pd_bus clock source - pd_bus HCLK/PCLK clock rate should not bigger than ACLK Signed-off-by: Kever Yang Reviewed-by: Simon Glass diff --git a/arch/arm/include/asm/arch-rockchip/cru_rk3036.h b/arch/arm/include/asm/arch-rockchip/cru_rk3036.h index eb5eb40..22278e1 100644 --- a/arch/arm/include/asm/arch-rockchip/cru_rk3036.h +++ b/arch/arm/include/asm/arch-rockchip/cru_rk3036.h @@ -16,9 +16,9 @@ #define CORE_PERI_HZ 150000000 #define CORE_ACLK_HZ 300000000 -#define CPU_ACLK_HZ 150000000 -#define CPU_HCLK_HZ 300000000 -#define CPU_PCLK_HZ 300000000 +#define BUS_ACLK_HZ 148500000 +#define BUS_HCLK_HZ 148500000 +#define BUS_PCLK_HZ 74250000 #define PERI_ACLK_HZ 148500000 #define PERI_HCLK_HZ 148500000 diff --git a/drivers/clk/rockchip/clk_rk3036.c b/drivers/clk/rockchip/clk_rk3036.c index ce1c670..28652df 100644 --- a/drivers/clk/rockchip/clk_rk3036.c +++ b/drivers/clk/rockchip/clk_rk3036.c @@ -116,21 +116,21 @@ static void rkclk_init(struct rk3036_cru *cru) pclk_div << CORE_PERI_DIV_SHIFT); /* - * select apll as pd_bus clock pll source and + * select apll as pd_bus bus clock source and * set up dependent divisors for PCLK/HCLK and ACLK clocks. */ - aclk_div = APLL_HZ / CPU_ACLK_HZ - 1; - assert((aclk_div + 1) * CPU_ACLK_HZ == APLL_HZ && aclk_div < 0x1f); + aclk_div = GPLL_HZ / BUS_ACLK_HZ - 1; + assert((aclk_div + 1) * BUS_ACLK_HZ == GPLL_HZ && aclk_div <= 0x1f); - pclk_div = APLL_HZ / CPU_PCLK_HZ - 1; - assert((pclk_div + 1) * CPU_PCLK_HZ == APLL_HZ && pclk_div < 0x7); + pclk_div = GPLL_HZ / BUS_PCLK_HZ - 1; + assert((pclk_div + 1) * BUS_PCLK_HZ == GPLL_HZ && pclk_div <= 0x7); - hclk_div = APLL_HZ / CPU_HCLK_HZ - 1; - assert((hclk_div + 1) * CPU_HCLK_HZ == APLL_HZ && hclk_div < 0x3); + hclk_div = GPLL_HZ / BUS_HCLK_HZ - 1; + assert((hclk_div + 1) * BUS_HCLK_HZ == GPLL_HZ && hclk_div <= 0x3); rk_clrsetreg(&cru->cru_clksel_con[0], BUS_ACLK_PLL_SEL_MASK | BUS_ACLK_DIV_MASK, - BUS_ACLK_PLL_SEL_APLL << BUS_ACLK_PLL_SEL_SHIFT | + BUS_ACLK_PLL_SEL_GPLL << BUS_ACLK_PLL_SEL_SHIFT | aclk_div << BUS_ACLK_DIV_SHIFT); rk_clrsetreg(&cru->cru_clksel_con[1], @@ -147,7 +147,7 @@ static void rkclk_init(struct rk3036_cru *cru) hclk_div = ilog2(PERI_ACLK_HZ / PERI_HCLK_HZ); assert((1 << hclk_div) * PERI_HCLK_HZ == - PERI_ACLK_HZ && (pclk_div < 0x4)); + PERI_ACLK_HZ && (hclk_div < 0x4)); pclk_div = ilog2(PERI_ACLK_HZ / PERI_PCLK_HZ); assert((1 << pclk_div) * PERI_PCLK_HZ == -- cgit v0.10.2