diff options
| author | Julius Werner <jwerner@chromium.org> | 2016-08-29 15:07:58 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2016-10-06 21:48:50 +0200 |
| commit | 7f965891b6d95bf3c347d955502505597d45a7d7 (patch) | |
| tree | 20395b7c9b7548fd39d8da8a354614a7d341c5ef /src/soc/rockchip/rk3399/clock.c | |
| parent | a39a5b60b4a11bb2686166f58987158b980c7f21 (diff) | |
| download | coreboot-7f965891b6d95bf3c347d955502505597d45a7d7.tar.xz | |
rockchip/rk3399: Move big CPU cluster initialization into ramstage
This patch moves the big CPU cluster initialization on the RK3399 from
the clock init bootblock function into ramstage. We're only really doing
this to put the cluster into a sane state for the OS, we're never
actually taking it out of reset ourselves... so there's no reason to do
this so early.
Also cleaned up the interface for rkclk_configure_cpu() a bit to make it
more readable.
BRANCH=None
BUG=chrome-os-partner:54906
TEST=Booted Kevin.
Change-Id: I568b891da0abb404760d120cef847737c1f9e3ec
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: bd7aa7ec3e6d211b17ed61419f80a818cee78919
Original-Change-Id: Ic3d01a51531683b53e17addf1942441663a8ea40
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/377541
Original-Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-on: https://review.coreboot.org/16698
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/soc/rockchip/rk3399/clock.c')
| -rw-r--r-- | src/soc/rockchip/rk3399/clock.c | 40 |
1 files changed, 23 insertions, 17 deletions
diff --git a/src/soc/rockchip/rk3399/clock.c b/src/soc/rockchip/rk3399/clock.c index 9ac1ffedff..ded0a94008 100644 --- a/src/soc/rockchip/rk3399/clock.c +++ b/src/soc/rockchip/rk3399/clock.c @@ -494,26 +494,32 @@ void rkclk_init(void) HCLK_PERILP1_PLL_SEL_SHIFT)); } -void rkclk_configure_cpu(enum apll_frequencies apll_freq, bool is_big) +void rkclk_configure_cpu(enum apll_frequencies freq, enum cpu_cluster cluster) { - u32 aclkm_div; - u32 pclk_dbg_div; - u32 atclk_div; - u32 apll_l_hz; - int con_base = is_big ? 2 : 0; - int parent = is_big ? CLK_CORE_PLL_SEL_ABPLL : CLK_CORE_PLL_SEL_ALPLL; - u32 *pll_con = is_big ? &cru_ptr->apll_b_con[0] : - &cru_ptr->apll_l_con[0]; - - apll_l_hz = apll_cfgs[apll_freq]->freq; - - rkclk_set_pll(pll_con, apll_cfgs[apll_freq]); - - aclkm_div = div_round_up(apll_l_hz, ACLKM_CORE_HZ) - 1; + u32 aclkm_div, atclk_div, pclk_dbg_div, apll_hz; + int con_base, parent; + u32 *pll_con; + + switch (cluster) { + case CPU_CLUSTER_LITTLE: + con_base = 0; + parent = CLK_CORE_PLL_SEL_ALPLL; + pll_con = &cru_ptr->apll_l_con[0]; + break; + case CPU_CLUSTER_BIG: + default: + con_base = 2; + parent = CLK_CORE_PLL_SEL_ABPLL; + pll_con = &cru_ptr->apll_b_con[0]; + break; + } - pclk_dbg_div = div_round_up(apll_l_hz, PCLK_DBG_HZ) - 1; + apll_hz = apll_cfgs[freq]->freq; + rkclk_set_pll(pll_con, apll_cfgs[freq]); - atclk_div = div_round_up(apll_l_hz, ATCLK_CORE_HZ) - 1; + aclkm_div = div_round_up(apll_hz, ACLKM_CORE_HZ) - 1; + pclk_dbg_div = div_round_up(apll_hz, PCLK_DBG_HZ) - 1; + atclk_div = div_round_up(apll_hz, ATCLK_CORE_HZ) - 1; write32(&cru_ptr->clksel_con[con_base], RK_CLRSETBITS(ACLKM_CORE_DIV_CON_MASK << |