diff options
| author | Peter De Schrijver <pdeschrijver@nvidia.com> | 2013-11-25 12:44:13 (GMT) |
|---|---|---|
| committer | Peter De Schrijver <pdeschrijver@nvidia.com> | 2013-11-26 16:46:21 (GMT) |
| commit | 8e9cc80aa348938078c3c1a7ab55efb3c40990e3 (patch) | |
| tree | 28f27ff2c2a39de09c0ec3a0f100b5c5243f0646 /drivers/clk | |
| parent | 04edb099a4a7e774a98b241dc016957922cbfb44 (diff) | |
| download | linux-8e9cc80aa348938078c3c1a7ab55efb3c40990e3.tar.xz | |
clk: tegra: use pll_ref as the pll_e parent
Use pll_ref instead of pll_re_vco as the pll_e parent on Tegra114. Also
add a 12Mhz pll_ref table entry for pll_e for Tegra114. This prevents
the system from crashing at bootup because of an unsupported pll_re_vco
rate.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/tegra/clk-pll.c | 8 | ||||
| -rw-r--r-- | drivers/clk/tegra/clk-tegra114.c | 3 |
2 files changed, 7 insertions, 4 deletions
diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c index 8f51147..48f6bff 100644 --- a/drivers/clk/tegra/clk-pll.c +++ b/drivers/clk/tegra/clk-pll.c @@ -1704,11 +1704,13 @@ struct clk *tegra_clk_register_plle_tegra114(const char *name, val_aux = pll_readl(pll_params->aux_reg, pll); if (val & PLL_BASE_ENABLE) { - if (!(val_aux & PLLE_AUX_PLLRE_SEL)) + if ((val_aux & PLLE_AUX_PLLRE_SEL) || + (val_aux & PLLE_AUX_PLLP_SEL)) WARN(1, "pll_e enabled with unsupported parent %s\n", - (val & PLLE_AUX_PLLP_SEL) ? "pllp_out0" : "pll_ref"); + (val_aux & PLLE_AUX_PLLP_SEL) ? "pllp_out0" : + "pll_re_vco"); } else { - val_aux |= PLLE_AUX_PLLRE_SEL; + val_aux &= ~(PLLE_AUX_PLLRE_SEL | PLLE_AUX_PLLP_SEL); pll_writel(val, pll_params->aux_reg, pll); } diff --git a/drivers/clk/tegra/clk-tegra114.c b/drivers/clk/tegra/clk-tegra114.c index fa562e3..e62e476 100644 --- a/drivers/clk/tegra/clk-tegra114.c +++ b/drivers/clk/tegra/clk-tegra114.c @@ -637,6 +637,7 @@ static struct tegra_clk_pll_freq_table pll_e_freq_table[] = { /* PLLE special case: use cpcon field to store cml divider value */ {336000000, 100000000, 100, 21, 16, 11}, {312000000, 100000000, 200, 26, 24, 13}, + {12000000, 100000000, 200, 1, 24, 13}, {0, 0, 0, 0, 0, 0}, }; @@ -1301,7 +1302,7 @@ static void __init tegra114_pll_init(void __iomem *clk_base, clks[TEGRA114_CLK_PLL_RE_OUT] = clk; /* PLLE */ - clk = tegra_clk_register_plle_tegra114("pll_e_out0", "pll_re_vco", + clk = tegra_clk_register_plle_tegra114("pll_e_out0", "pll_ref", clk_base, 0, 100000000, &pll_e_params, pll_e_freq_table, NULL); clk_register_clkdev(clk, "pll_e_out0", NULL); |