soc/amd/picasso/aoac: Add wait_for_aoac_enabled
This way drivers can wait for their devices to be enabled. I also rewrote enable_aoac_devices to take advantage of wait_for_aoac_enabled. BUG=b:153001807 TEST=Trembyle builds Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: I8e653c857e164f90439e0028e08aa9608d4eca94 Reviewed-on: https://review.coreboot.org/c/coreboot/+/42326 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
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@ -63,37 +63,26 @@ bool is_aoac_device_enabled(int dev)
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return false;
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}
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static void enable_aoac_console_uart(void)
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void wait_for_aoac_enabled(int dev)
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{
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if (!CONFIG(PICASSO_UART))
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return;
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power_on_aoac_device(FCH_AOAC_UART_FOR_CONSOLE);
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}
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static bool is_aoac_console_uart_enabled(void)
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{
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if (!CONFIG(PICASSO_UART))
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return true;
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return is_aoac_device_enabled(FCH_AOAC_UART_FOR_CONSOLE);
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while (!is_aoac_device_enabled(dev))
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udelay(100);
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}
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void enable_aoac_devices(void)
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{
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bool status;
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int i;
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for (i = 0; i < ARRAY_SIZE(aoac_devs); i++)
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power_on_aoac_device(aoac_devs[i]);
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enable_aoac_console_uart();
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if (CONFIG(PICASSO_UART))
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power_on_aoac_device(FCH_AOAC_UART_FOR_CONSOLE);
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/* Wait for AOAC devices to indicate power and clock OK */
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do {
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udelay(100);
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status = true;
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for (i = 0; i < ARRAY_SIZE(aoac_devs); i++)
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status &= is_aoac_device_enabled(aoac_devs[i]);
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status &= is_aoac_console_uart_enabled();
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} while (!status);
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for (i = 0; i < ARRAY_SIZE(aoac_devs); i++)
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wait_for_aoac_enabled(aoac_devs[i]);
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if (CONFIG(PICASSO_UART))
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wait_for_aoac_enabled(FCH_AOAC_UART_FOR_CONSOLE);
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}
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@ -280,6 +280,7 @@ void enable_aoac_devices(void);
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bool is_aoac_device_enabled(int dev);
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void power_on_aoac_device(int dev);
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void power_off_aoac_device(int dev);
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void wait_for_aoac_enabled(int dev);
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void sb_clk_output_48Mhz(void);
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void sb_enable(struct device *dev);
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void southbridge_final(void *chip_info);
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