Commit cc0efb57 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt
Browse files

powerpc/powernv: Update opal.h to add new LPC and XSCOM functions 



Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent ecd73cc5

arch/powerpc/include/asm/opal.h

+23 −0
Original line number Diff line number Diff line
@@ -124,6 +124,10 @@ extern int opal_enter_rtas(struct rtas_args *args, 
#define OPAL_PCI_POLL				62

#define OPAL_PCI_MSI_EOI			63

#define OPAL_PCI_GET_PHB_DIAG_DATA2		64

#define OPAL_XSCOM_READ				65

#define OPAL_XSCOM_WRITE			66

#define OPAL_LPC_READ				67

#define OPAL_LPC_WRITE				68



#ifndef __ASSEMBLY__
@@ -337,6 +341,17 @@ enum OpalEpowStatus { 
	OPAL_EPOW_OVER_INTERNAL_TEMP = 3

};



/*

 * Address cycle types for LPC accesses. These also correspond

 * to the content of the first cell of the "reg" property for

 * device nodes on the LPC bus

 */

enum OpalLPCAddressType {

	OPAL_LPC_MEM	= 0,

	OPAL_LPC_IO	= 1,

	OPAL_LPC_FW	= 2,

};



struct opal_machine_check_event {

	enum OpalMCE_Version	version:8;	/* 0x00 */

	uint8_t			in_use;		/* 0x01 */
@@ -632,6 +647,14 @@ int64_t opal_pci_next_error(uint64_t phb_id, uint64_t *first_frozen_pe, 
			    uint16_t *pci_error_type, uint16_t *severity);

int64_t opal_pci_poll(uint64_t phb_id);



int64_t opal_xscom_read(uint32_t gcid, uint32_t pcb_addr, uint64_t *val);

int64_t opal_xscom_write(uint32_t gcid, uint32_t pcb_addr, uint64_t val);



int64_t opal_lpc_write(uint32_t chip_id, enum OpalLPCAddressType addr_type,

		       uint32_t addr, uint32_t data, uint32_t sz);

int64_t opal_lpc_read(uint32_t chip_id, enum OpalLPCAddressType addr_type,

		      uint32_t addr, uint32_t *data, uint32_t sz);



/* Internal functions */

extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data);

arch/powerpc/platforms/powernv/opal-wrappers.S

+4 −0
Original line number Diff line number Diff line
@@ -111,3 +111,7 @@ OPAL_CALL(opal_pci_next_error, OPAL_PCI_NEXT_ERROR); 
OPAL_CALL(opal_pci_poll,			OPAL_PCI_POLL);

OPAL_CALL(opal_pci_msi_eoi,			OPAL_PCI_MSI_EOI);

OPAL_CALL(opal_pci_get_phb_diag_data2,		OPAL_PCI_GET_PHB_DIAG_DATA2);

OPAL_CALL(opal_xscom_read,			OPAL_XSCOM_READ);

OPAL_CALL(opal_xscom_write,			OPAL_XSCOM_WRITE);

OPAL_CALL(opal_lpc_read,			OPAL_LPC_READ);

OPAL_CALL(opal_lpc_write,			OPAL_LPC_WRITE);