6  * microcontroller is System Controller Unit (SCU) which, in particular,
9  * This driver enables IPC channel to SCU.
18 #include <asm/scu.h>
23 /* SCU register map */
34 struct scu {  struct
39  * scu_ipc_send_command() - send command to SCU
40  * @regs: register map of SCU
44  * A write to this register results in an interrupt to the SCU core processor
55  * @regs: register map of SCU
59  * block and error status of the IPC command that was just processed by SCU
110  * Issue a simple command to the SCU. Do not use this interface if
112  * by another SCU access by the time this function returns.
114  * This function may sleep. Locking for SCU accesses is handled for
119 	struct scu *scu;  in scu_ipc_simple_command()  local
127 	scu = dev_get_priv(dev);  in scu_ipc_simple_command()
129 	scu_ipc_send_command(scu->regs, sub << 12 | cmd);  in scu_ipc_simple_command()
130 	return scu_ipc_check_status(scu->regs);  in scu_ipc_simple_command()
135 	struct scu *scu;  in scu_ipc_command()  local
143 	scu = dev_get_priv(dev);  in scu_ipc_command()
145 	return scu_ipc_cmd(scu->regs, cmd, sub, in, inlen, out, outlen);  in scu_ipc_command()
150 	struct scu *scu = dev_get_priv(dev);  in scu_ipc_probe()  local
152 	scu->regs = syscon_get_first_range(X86_SYSCON_SCU);  in scu_ipc_probe()
158 	{ .compatible = "intel,scu-ipc", .data = X86_SYSCON_SCU },
167 	.priv_auto_alloc_size = sizeof(struct scu),