diff options
Diffstat (limited to 'drivers/clk/rockchip/clk_rk3399.c')
| -rw-r--r-- | drivers/clk/rockchip/clk_rk3399.c | 79 |
1 files changed, 70 insertions, 9 deletions
diff --git a/drivers/clk/rockchip/clk_rk3399.c b/drivers/clk/rockchip/clk_rk3399.c index 26faf88116..198914b067 100644 --- a/drivers/clk/rockchip/clk_rk3399.c +++ b/drivers/clk/rockchip/clk_rk3399.c @@ -61,6 +61,11 @@ static const struct pll_div *apll_l_cfgs[] = { [APLL_L_600_MHZ] = &apll_l_600_cfg, }; +static const struct pll_div apll_b_600_cfg = PLL_DIVISORS(600*MHz, 1, 2, 1); +static const struct pll_div *apll_b_cfgs[] = { + [APLL_B_600_MHZ] = &apll_b_600_cfg, +}; + enum { /* PLL_CON0 */ PLL_FBDIV_MASK = 0xfff, @@ -128,6 +133,24 @@ enum { ATCLK_CORE_L_DIV_SHIFT = 0, ATCLK_CORE_L_DIV_MASK = 0x1f << ATCLK_CORE_L_DIV_SHIFT, + /* CLKSEL_CON2 */ + ACLKM_CORE_B_DIV_CON_SHIFT = 8, + ACLKM_CORE_B_DIV_CON_MASK = 0x1f << ACLKM_CORE_B_DIV_CON_SHIFT, + CLK_CORE_B_PLL_SEL_SHIFT = 6, + CLK_CORE_B_PLL_SEL_MASK = 3 << CLK_CORE_B_PLL_SEL_SHIFT, + CLK_CORE_B_PLL_SEL_ALPLL = 0x0, + CLK_CORE_B_PLL_SEL_ABPLL = 0x1, + CLK_CORE_B_PLL_SEL_DPLL = 0x10, + CLK_CORE_B_PLL_SEL_GPLL = 0x11, + CLK_CORE_B_DIV_MASK = 0x1f, + CLK_CORE_B_DIV_SHIFT = 0, + + /* CLKSEL_CON3 */ + PCLK_DBG_B_DIV_SHIFT = 0x8, + PCLK_DBG_B_DIV_MASK = 0x1f << PCLK_DBG_B_DIV_SHIFT, + ATCLK_CORE_B_DIV_SHIFT = 0, + ATCLK_CORE_B_DIV_MASK = 0x1f << ATCLK_CORE_B_DIV_SHIFT, + /* CLKSEL_CON14 */ PCLK_PERIHP_DIV_CON_SHIFT = 12, PCLK_PERIHP_DIV_CON_MASK = 0x7 << PCLK_PERIHP_DIV_CON_SHIFT, @@ -395,25 +418,26 @@ static int pll_para_config(u32 freq_hz, struct pll_div *div) return 0; } -void rk3399_configure_cpu(struct rk3399_cru *cru, - enum apll_l_frequencies apll_l_freq) +void rk3399_configure_cpu_l(struct rk3399_cru *cru, + enum apll_l_frequencies apll_l_freq) { u32 aclkm_div; u32 pclk_dbg_div; u32 atclk_div; + /* Setup cluster L */ rkclk_set_pll(&cru->apll_l_con[0], apll_l_cfgs[apll_l_freq]); - aclkm_div = APLL_HZ / ACLKM_CORE_HZ - 1; - assert((aclkm_div + 1) * ACLKM_CORE_HZ == APLL_HZ && + aclkm_div = LPLL_HZ / ACLKM_CORE_L_HZ - 1; + assert((aclkm_div + 1) * ACLKM_CORE_L_HZ == LPLL_HZ && aclkm_div < 0x1f); - pclk_dbg_div = APLL_HZ / PCLK_DBG_HZ - 1; - assert((pclk_dbg_div + 1) * PCLK_DBG_HZ == APLL_HZ && + pclk_dbg_div = LPLL_HZ / PCLK_DBG_L_HZ - 1; + assert((pclk_dbg_div + 1) * PCLK_DBG_L_HZ == LPLL_HZ && pclk_dbg_div < 0x1f); - atclk_div = APLL_HZ / ATCLK_CORE_HZ - 1; - assert((atclk_div + 1) * ATCLK_CORE_HZ == APLL_HZ && + atclk_div = LPLL_HZ / ATCLK_CORE_L_HZ - 1; + assert((atclk_div + 1) * ATCLK_CORE_L_HZ == LPLL_HZ && atclk_div < 0x1f); rk_clrsetreg(&cru->clksel_con[0], @@ -428,6 +452,42 @@ void rk3399_configure_cpu(struct rk3399_cru *cru, pclk_dbg_div << PCLK_DBG_L_DIV_SHIFT | atclk_div << ATCLK_CORE_L_DIV_SHIFT); } + +void rk3399_configure_cpu_b(struct rk3399_cru *cru, + enum apll_b_frequencies apll_b_freq) +{ + u32 aclkm_div; + u32 pclk_dbg_div; + u32 atclk_div; + + /* Setup cluster B */ + rkclk_set_pll(&cru->apll_b_con[0], apll_b_cfgs[apll_b_freq]); + + aclkm_div = BPLL_HZ / ACLKM_CORE_B_HZ - 1; + assert((aclkm_div + 1) * ACLKM_CORE_B_HZ == BPLL_HZ && + aclkm_div < 0x1f); + + pclk_dbg_div = BPLL_HZ / PCLK_DBG_B_HZ - 1; + assert((pclk_dbg_div + 1) * PCLK_DBG_B_HZ == BPLL_HZ && + pclk_dbg_div < 0x1f); + + atclk_div = BPLL_HZ / ATCLK_CORE_B_HZ - 1; + assert((atclk_div + 1) * ATCLK_CORE_B_HZ == BPLL_HZ && + atclk_div < 0x1f); + + rk_clrsetreg(&cru->clksel_con[2], + ACLKM_CORE_B_DIV_CON_MASK | CLK_CORE_B_PLL_SEL_MASK | + CLK_CORE_B_DIV_MASK, + aclkm_div << ACLKM_CORE_B_DIV_CON_SHIFT | + CLK_CORE_B_PLL_SEL_ABPLL << CLK_CORE_B_PLL_SEL_SHIFT | + 0 << CLK_CORE_B_DIV_SHIFT); + + rk_clrsetreg(&cru->clksel_con[3], + PCLK_DBG_B_DIV_MASK | ATCLK_CORE_B_DIV_MASK, + pclk_dbg_div << PCLK_DBG_B_DIV_SHIFT | + atclk_div << ATCLK_CORE_B_DIV_SHIFT); +} + #define I2C_CLK_REG_MASK(bus) \ (I2C_DIV_CON_MASK << \ CLK_I2C ##bus## _DIV_CON_SHIFT | \ @@ -1026,7 +1086,8 @@ static void rkclk_init(struct rk3399_cru *cru) u32 hclk_div; u32 pclk_div; - rk3399_configure_cpu(cru, APLL_L_600_MHZ); + rk3399_configure_cpu_l(cru, APLL_L_600_MHZ); + rk3399_configure_cpu_b(cru, APLL_B_600_MHZ); /* * some cru registers changed by bootrom, we'd better reset them to * reset/default values described in TRM to avoid confusion in kernel. |