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Diffstat (limited to 'src/soc/amd/cezanne/uart.c')
-rw-r--r--src/soc/amd/cezanne/uart.c95
1 files changed, 1 insertions, 94 deletions
diff --git a/src/soc/amd/cezanne/uart.c b/src/soc/amd/cezanne/uart.c
index 684786b51e..3ac7deb755 100644
--- a/src/soc/amd/cezanne/uart.c
+++ b/src/soc/amd/cezanne/uart.c
@@ -1,6 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0-only */
-#include <amdblocks/aoac.h>
#include <amdblocks/gpio.h>
#include <amdblocks/uart.h>
#include <commonlib/helpers.h>
@@ -25,105 +24,13 @@ static const struct soc_uart_ctrlr_info uart_info[] = {
} },
};
-static const struct soc_uart_ctrlr_info *soc_get_uart_ctrlr_info(size_t *num_ctrlrs)
+const struct soc_uart_ctrlr_info *soc_get_uart_ctrlr_info(size_t *num_ctrlrs)
{
*num_ctrlrs = ARRAY_SIZE(uart_info);
return uart_info;
}
-uintptr_t get_uart_base(unsigned int idx)
-{
- size_t num_ctrlrs;
- const struct soc_uart_ctrlr_info *ctrlr = soc_get_uart_ctrlr_info(&num_ctrlrs);
-
- if (idx >= num_ctrlrs)
- return 0;
-
- return ctrlr[idx].base;
-}
-
-static enum cb_err get_uart_idx(uintptr_t base, const struct soc_uart_ctrlr_info *ctrlr,
- size_t num_ctrlrs, unsigned int *idx)
-{
- unsigned int i;
- for (i = 0; i < num_ctrlrs; i++) {
- if (base == ctrlr[i].base) {
- *idx = i;
- return CB_SUCCESS;
- }
- }
- return CB_ERR;
-}
-
-static enum cb_err get_uart_aoac_device(uintptr_t base, unsigned int *aoac_dev)
-{
- unsigned int idx;
- size_t num_ctrlrs;
- const struct soc_uart_ctrlr_info *ctrlr = soc_get_uart_ctrlr_info(&num_ctrlrs);
-
- if (get_uart_idx(base, ctrlr, num_ctrlrs, &idx) == CB_ERR)
- return CB_ERR;
-
- *aoac_dev = ctrlr[idx].aoac_device;
- return CB_SUCCESS;
-}
-
void clear_uart_legacy_config(void)
{
write16p(FCH_LEGACY_UART_DECODE, 0);
}
-
-void set_uart_config(unsigned int idx)
-{
- size_t num_ctrlrs;
- const struct soc_uart_ctrlr_info *ctrlr = soc_get_uart_ctrlr_info(&num_ctrlrs);
-
- if (idx >= num_ctrlrs)
- return;
-
- gpio_configure_pads(ctrlr[idx].mux, 2);
-}
-
-static const char *uart_acpi_name(const struct device *dev)
-{
- unsigned int idx;
- size_t num_ctrlrs;
- const struct soc_uart_ctrlr_info *ctrlr = soc_get_uart_ctrlr_info(&num_ctrlrs);
-
- if (get_uart_idx(dev->path.mmio.addr, ctrlr, num_ctrlrs, &idx) == CB_SUCCESS)
- return ctrlr[idx].acpi_name;
- else
- return NULL;
-}
-
-/* Even though this is called enable, it gets called for both enabled and disabled devices. */
-static void uart_enable(struct device *dev)
-{
- unsigned int dev_id;
-
- if (get_uart_aoac_device(dev->path.mmio.addr, &dev_id) == CB_ERR) {
- printk(BIOS_ERR, "%s: Unknown device: %s\n", __func__, dev_path(dev));
- return;
- }
-
- if (dev->enabled) {
- power_on_aoac_device(dev_id);
- wait_for_aoac_enabled(dev_id);
- } else {
- power_off_aoac_device(dev_id);
- }
-}
-
-static void uart_read_resources(struct device *dev)
-{
- mmio_resource_kb(dev, 0, dev->path.mmio.addr / KiB, 4);
-}
-
-struct device_operations cezanne_uart_mmio_ops = {
- .read_resources = uart_read_resources,
- .set_resources = noop_set_resources,
- .scan_bus = scan_static_bus,
- .enable = uart_enable,
- .acpi_name = uart_acpi_name,
- .acpi_fill_ssdt = uart_inject_ssdt,
-};