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driver: espi: add espi peripheral channel acpi shd mem driver for rts5912

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add espi peripheral channel acpi shd mem driver for rts5912

Signed-off-by: jhan bo chao <jhan_bo_chao@realtek.com>
This commit is contained in:
jhan bo chao 2025-05-04 02:37:18 +08:00 • committed by Benjamin Cabé
commit 805b213424
2 changed files with 37 additions and 0 deletions
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3
drivers/espi/Kconfig.rts5912
View file

@ -10,6 +10,9 @@ config ESPI_RTS5912
if ESPI_RTS5912
config ESPI_PERIPHERAL_ACPI_SHM_REGION
default y
config ESPI_PERIPHERAL_HOST_IO
default y

34
drivers/espi/espi_realtek_rts5912.c
View file

@ -41,6 +41,11 @@ struct espi_rts5912_config {
uint32_t emi0_clk_grp;
uint32_t emi0_clk_idx;
#endif
#ifdef CONFIG_ESPI_PERIPHERAL_ACPI_SHM_REGION
volatile struct emi_reg *const emi1_reg;
uint32_t emi1_clk_grp;
uint32_t emi1_clk_idx;
#endif
#ifdef CONFIG_ESPI_PERIPHERAL_DEBUG_PORT_80
volatile struct port80_reg *const port80_reg;
uint32_t port80_clk_grp;
@ -66,6 +71,26 @@ struct espi_rts5912_data {
#endif
};
/*
* =========================================================================
* ESPI Peripheral Shared Memory Region
* =========================================================================
*/
#ifdef CONFIG_ESPI_PERIPHERAL_ACPI_SHM_REGION
#define ESPI_RTK_PERIPHERAL_ACPI_SHD_MEM_SIZE 256
static uint8_t acpi_shd_mem_sram[ESPI_RTK_PERIPHERAL_ACPI_SHD_MEM_SIZE] __aligned(256);
static void espi_setup_acpi_shm(const struct espi_rts5912_config *const espi_config)
{
volatile struct emi_reg *const emi1_reg = espi_config->emi1_reg;
emi1_reg->SAR = (uint32_t)&acpi_shd_mem_sram[0];
}
#endif /* CONFIG_ESPI_PERIPHERAL_ACPI_SHM_REGION */
/*
* =========================================================================
* ESPI Peripheral Host IO (ACPI)
@ -1858,6 +1883,10 @@ static int espi_rts5912_init(const struct device *dev)
/* Setup eSPI bus reset */
espi_bus_reset_setup(dev);
#ifdef CONFIG_ESPI_PERIPHERAL_ACPI_SHM_REGION
espi_setup_acpi_shm(espi_config);
#endif
#ifdef CONFIG_ESPI_PERIPHERAL_HOST_IO
/* Setup ACPI */
rc = espi_acpi_setup(dev);
@ -1935,6 +1964,11 @@ static const struct espi_rts5912_config espi_rts5912_config = {
.emi0_clk_grp = DT_CLOCKS_CELL_BY_NAME(DT_DRV_INST(0), emi0, clk_grp),
.emi0_clk_idx = DT_CLOCKS_CELL_BY_NAME(DT_DRV_INST(0), emi0, clk_idx),
#endif
#ifdef CONFIG_ESPI_PERIPHERAL_ACPI_SHM_REGION
.emi1_reg = (volatile struct emi_reg *const)DT_INST_REG_ADDR_BY_NAME(0, emi1),
.emi1_clk_grp = DT_CLOCKS_CELL_BY_NAME(DT_DRV_INST(0), emi1, clk_grp),
.emi1_clk_idx = DT_CLOCKS_CELL_BY_NAME(DT_DRV_INST(0), emi1, clk_idx),
#endif
#ifdef CONFIG_ESPI_PERIPHERAL_DEBUG_PORT_80
.port80_reg = (volatile struct port80_reg *const)DT_INST_REG_ADDR_BY_NAME(0, port80),
.port80_clk_grp = DT_CLOCKS_CELL_BY_NAME(DT_DRV_INST(0), port80, clk_grp),