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stm32mp1: clk: define RCC_PLLNCFGR2_SHIFT macro

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This patch define RCC_PLLNCFGR2_SHIFT to reuse it in
the pll function for set rate.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
lime2-spi
Patrick Delaunay 6 years ago committed by Tom Rini
parent 8a07d5bfe1
commit c2fa5dc82d
1 changed files with 6 additions and 9 deletions
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  1. 15
      drivers/clk/clk_stm32mp1.c

15
drivers/clk/clk_stm32mp1.c
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@ -175,13 +175,14 @@
#define RCC_PLLNCFGR1_IFRGE_SHIFT 24
#define RCC_PLLNCFGR1_IFRGE_MASK GENMASK(25, 24)
/* used for ALL PLLNCFGR2 registers */
/* used for ALL PLLNCFGR2 registers , using stm32mp1_div_id */
#define RCC_PLLNCFGR2_SHIFT(div_id) ((div_id) * 8)
#define RCC_PLLNCFGR2_DIVX_MASK GENMASK(6, 0)
#define RCC_PLLNCFGR2_DIVP_SHIFT 0
#define RCC_PLLNCFGR2_DIVP_SHIFT RCC_PLLNCFGR2_SHIFT(_DIV_P)
#define RCC_PLLNCFGR2_DIVP_MASK GENMASK(6, 0)
#define RCC_PLLNCFGR2_DIVQ_SHIFT 8
#define RCC_PLLNCFGR2_DIVQ_SHIFT RCC_PLLNCFGR2_SHIFT(_DIV_Q)
#define RCC_PLLNCFGR2_DIVQ_MASK GENMASK(14, 8)
#define RCC_PLLNCFGR2_DIVR_SHIFT 16
#define RCC_PLLNCFGR2_DIVR_SHIFT RCC_PLLNCFGR2_SHIFT(_DIV_R)
#define RCC_PLLNCFGR2_DIVR_MASK GENMASK(22, 16)
/* used for ALL PLLNFRACR registers */
@ -814,10 +815,6 @@ static ulong stm32mp1_read_pll_freq(struct stm32mp1_clk_priv *priv,
int divm, divn, divy, src;
ulong refclk, dfout;
u32 selr, cfgr1, cfgr2, fracr;
const u8 shift[_DIV_NB] = {
[_DIV_P] = RCC_PLLNCFGR2_DIVP_SHIFT,
[_DIV_Q] = RCC_PLLNCFGR2_DIVQ_SHIFT,
[_DIV_R] = RCC_PLLNCFGR2_DIVR_SHIFT };
debug("%s(%d, %d)\n", __func__, pll_id, div_id);
if (div_id > _DIV_NB)
@ -833,7 +830,7 @@ static ulong stm32mp1_read_pll_freq(struct stm32mp1_clk_priv *priv,
divm = (cfgr1 & (RCC_PLLNCFGR1_DIVM_MASK)) >> RCC_PLLNCFGR1_DIVM_SHIFT;
divn = cfgr1 & RCC_PLLNCFGR1_DIVN_MASK;
divy = (cfgr2 >> shift[div_id]) & RCC_PLLNCFGR2_DIVX_MASK;
divy = (cfgr2 >> RCC_PLLNCFGR2_SHIFT(div_id)) & RCC_PLLNCFGR2_DIVX_MASK;
debug(" DIVN=%d DIVM=%d DIVY=%d\n", divn, divm, divy);

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