ARM: zynq: Add missing i2c get_rate for fixing i2c SPL

The commit 'f48ef0d81aa837a33020f8d61abb3929ba613774' did break I2C
support because requesting the clock for the I2C ip-block isn't
supported during SPL.

To fixup this we add support requesting clocks for:
- i2c0
- i2c1

Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/clk/clk_zynq.c b/drivers/clk/clk_zynq.c
index 482f0937cb5a94947e919dedcdca68a29638cac2..b09c37db40f1565ab95bdf3704b739ed6183180e 100644 (file)
--- a/drivers/clk/clk_zynq.c
+++ b/drivers/clk/clk_zynq.c
@@ -434,6 +434,8 @@ static ulong zynq_clk_get_rate(struct clk *clk)
        case lqspi_clk ... pcap_clk:
        case sdio0_clk ... spi1_clk:
                return zynq_clk_get_peripheral_rate(priv, id, 0);
+       case i2c0_aper_clk ... i2c1_aper_clk:
+               return zynq_clk_get_cpu_rate(priv, cpu_1x_clk);
        default:
                return -ENXIO;
        }