diff options
| author | maxims@google.com <maxims@google.com> | 2017-04-17 19:00:29 (GMT) |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-05-08 15:57:34 (GMT) |
| commit | 4999bb06cc2f21d3a517a068b183fb11827f49a7 (patch) | |
| tree | c6b92d76a598d2efea41a928b4f2a617d3235b2c /drivers/clk | |
| parent | 3ef7f12cdd1b042cf657a1ea734bb9d2a4adc0da (diff) | |
| download | u-boot-fsl-qoriq-4999bb06cc2f21d3a517a068b183fb11827f49a7.tar.xz | |
aspeed: Add P-Bus clock in ast2500 clock driver
Add P-Bus Clock support to ast2500 clock driver.
This is the clock used by I2C devices.
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/aspeed/clk_ast2500.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/clk/aspeed/clk_ast2500.c b/drivers/clk/aspeed/clk_ast2500.c index 5047312..9e4c66e 100644 --- a/drivers/clk/aspeed/clk_ast2500.c +++ b/drivers/clk/aspeed/clk_ast2500.c @@ -110,6 +110,17 @@ static ulong ast2500_clk_get_rate(struct clk *clk) rate = ast2500_get_mpll_rate(clkin, readl(&priv->scu->m_pll_param)); break; + case BCLK_PCLK: + { + ulong apb_div = 4 + 4 * ((readl(&priv->scu->clk_sel1) + >> SCU_PCLK_DIV_SHIFT) & + SCU_PCLK_DIV_MASK); + rate = ast2500_get_hpll_rate(clkin, + readl(&priv->scu-> + h_pll_param)); + rate = rate / apb_div; + } + break; case PCLK_UART1: rate = ast2500_get_uart_clk_rate(priv->scu, 1); break; |