mpc83xx: add QE ethernet support

this patch adds support for the QUICC Engine based UCC gigabit ethernet device.

1 files changed, 237 insertions, 0 deletions

diff --git a/drivers/qe/qe.h b/drivers/qe/qe.h
new file mode 100644
index 0000000..f7f8ed0
--- /dev/null
+++ b/drivers/qe/qe.h
@@ -0,0 +1,237 @@
+/*
+ * Copyright (C) 2006 Freescale Semiconductor, Inc.
+ *
+ * Dave Liu <daveliu@freescale.com>
+ * based on source code of Shlomi Gridish
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __QE_H__
+#define __QE_H__
+
+#include "common.h"
+
+#define QE_NUM_OF_SNUM	28
+#define QE_NUM_OF_BRGS	16
+#define UCC_MAX_NUM	8
+
+#define QE_DATAONLY_BASE	(uint)(128)
+#define QE_DATAONLY_SIZE	((uint)(0xc000) - QE_DATAONLY_BASE)
+
+/* QE threads SNUM
+*/
+typedef enum qe_snum_state {
+	QE_SNUM_STATE_USED,   /* used */
+	QE_SNUM_STATE_FREE    /* free */
+} qe_snum_state_e;
+
+typedef struct qe_snum {
+	u8		num;   /* snum  */
+	qe_snum_state_e	state; /* state */
+} qe_snum_t;
+
+/* QE RISC allocation
+*/
+typedef enum qe_risc_allocation {
+	QE_RISC_ALLOCATION_RISC1		= 1,  /* RISC 1 */
+	QE_RISC_ALLOCATION_RISC2		= 2,  /* RISC 2 */
+	QE_RISC_ALLOCATION_RISC1_AND_RISC2	= 3   /* RISC 1 or RISC 2 */
+} qe_risc_allocation_e;
+
+/* QE CECR commands for UCC fast.
+*/
+#define QE_CR_FLG			0x00010000
+#define QE_RESET			0x80000000
+#define QE_INIT_TX_RX			0x00000000
+#define QE_INIT_RX			0x00000001
+#define QE_INIT_TX			0x00000002
+#define QE_ENTER_HUNT_MODE		0x00000003
+#define QE_STOP_TX			0x00000004
+#define QE_GRACEFUL_STOP_TX		0x00000005
+#define QE_RESTART_TX			0x00000006
+#define QE_SWITCH_COMMAND		0x00000007
+#define QE_SET_GROUP_ADDRESS		0x00000008
+#define QE_INSERT_CELL			0x00000009
+#define QE_ATM_TRANSMIT			0x0000000a
+#define QE_CELL_POOL_GET		0x0000000b
+#define QE_CELL_POOL_PUT		0x0000000c
+#define QE_IMA_HOST_CMD			0x0000000d
+#define QE_ATM_MULTI_THREAD_INIT	0x00000011
+#define QE_ASSIGN_PAGE			0x00000012
+#define QE_START_FLOW_CONTROL		0x00000014
+#define QE_STOP_FLOW_CONTROL		0x00000015
+#define QE_ASSIGN_PAGE_TO_DEVICE	0x00000016
+#define QE_GRACEFUL_STOP_RX		0x0000001a
+#define QE_RESTART_RX			0x0000001b
+
+/* QE CECR Sub Block Code - sub block code of QE command.
+*/
+#define QE_CR_SUBBLOCK_INVALID		0x00000000
+#define QE_CR_SUBBLOCK_USB		0x03200000
+#define QE_CR_SUBBLOCK_UCCFAST1		0x02000000
+#define QE_CR_SUBBLOCK_UCCFAST2		0x02200000
+#define QE_CR_SUBBLOCK_UCCFAST3		0x02400000
+#define QE_CR_SUBBLOCK_UCCFAST4		0x02600000
+#define QE_CR_SUBBLOCK_UCCFAST5		0x02800000
+#define QE_CR_SUBBLOCK_UCCFAST6		0x02a00000
+#define QE_CR_SUBBLOCK_UCCFAST7		0x02c00000
+#define QE_CR_SUBBLOCK_UCCFAST8		0x02e00000
+#define QE_CR_SUBBLOCK_UCCSLOW1		0x00000000
+#define QE_CR_SUBBLOCK_UCCSLOW2		0x00200000
+#define QE_CR_SUBBLOCK_UCCSLOW3		0x00400000
+#define QE_CR_SUBBLOCK_UCCSLOW4		0x00600000
+#define QE_CR_SUBBLOCK_UCCSLOW5		0x00800000
+#define QE_CR_SUBBLOCK_UCCSLOW6		0x00a00000
+#define QE_CR_SUBBLOCK_UCCSLOW7		0x00c00000
+#define QE_CR_SUBBLOCK_UCCSLOW8		0x00e00000
+#define QE_CR_SUBBLOCK_MCC1		0x03800000
+#define QE_CR_SUBBLOCK_MCC2		0x03a00000
+#define QE_CR_SUBBLOCK_MCC3		0x03000000
+#define QE_CR_SUBBLOCK_IDMA1		0x02800000
+#define QE_CR_SUBBLOCK_IDMA2		0x02a00000
+#define QE_CR_SUBBLOCK_IDMA3		0x02c00000
+#define QE_CR_SUBBLOCK_IDMA4		0x02e00000
+#define QE_CR_SUBBLOCK_HPAC		0x01e00000
+#define QE_CR_SUBBLOCK_SPI1		0x01400000
+#define QE_CR_SUBBLOCK_SPI2		0x01600000
+#define QE_CR_SUBBLOCK_RAND		0x01c00000
+#define QE_CR_SUBBLOCK_TIMER		0x01e00000
+#define QE_CR_SUBBLOCK_GENERAL		0x03c00000
+
+/* QE CECR Protocol - For non-MCC, specifies mode for QE CECR command.
+*/
+#define QE_CR_PROTOCOL_UNSPECIFIED	0x00 /* For all other protocols */
+#define QE_CR_PROTOCOL_HDLC_TRANSPARENT	0x00
+#define QE_CR_PROTOCOL_ATM_POS		0x0A
+#define QE_CR_PROTOCOL_ETHERNET		0x0C
+#define QE_CR_PROTOCOL_L2_SWITCH	0x0D
+#define QE_CR_PROTOCOL_SHIFT		6
+
+/* QE ASSIGN PAGE command
+*/
+#define QE_CR_ASSIGN_PAGE_SNUM_SHIFT	17
+
+/* Communication Direction.
+*/
+typedef enum comm_dir {
+	COMM_DIR_NONE		= 0,
+	COMM_DIR_RX		= 1,
+	COMM_DIR_TX		= 2,
+	COMM_DIR_RX_AND_TX	= 3
+} comm_dir_e;
+
+/* Clocks and BRG's
+*/
+typedef enum qe_clock {
+	QE_CLK_NONE = 0,
+	QE_BRG1,     /* Baud Rate Generator  1 */
+	QE_BRG2,     /* Baud Rate Generator  2 */
+	QE_BRG3,     /* Baud Rate Generator  3 */
+	QE_BRG4,     /* Baud Rate Generator  4 */
+	QE_BRG5,     /* Baud Rate Generator  5 */
+	QE_BRG6,     /* Baud Rate Generator  6 */
+	QE_BRG7,     /* Baud Rate Generator  7 */
+	QE_BRG8,     /* Baud Rate Generator  8 */
+	QE_BRG9,     /* Baud Rate Generator  9 */
+	QE_BRG10,    /* Baud Rate Generator 10 */
+	QE_BRG11,    /* Baud Rate Generator 11 */
+	QE_BRG12,    /* Baud Rate Generator 12 */
+	QE_BRG13,    /* Baud Rate Generator 13 */
+	QE_BRG14,    /* Baud Rate Generator 14 */
+	QE_BRG15,    /* Baud Rate Generator 15 */
+	QE_BRG16,    /* Baud Rate Generator 16 */
+	QE_CLK1,     /* Clock  1               */
+	QE_CLK2,     /* Clock  2               */
+	QE_CLK3,     /* Clock  3               */
+	QE_CLK4,     /* Clock  4               */
+	QE_CLK5,     /* Clock  5               */
+	QE_CLK6,     /* Clock  6               */
+	QE_CLK7,     /* Clock  7               */
+	QE_CLK8,     /* Clock  8               */
+	QE_CLK9,     /* Clock  9               */
+	QE_CLK10,    /* Clock 10               */
+	QE_CLK11,    /* Clock 11               */
+	QE_CLK12,    /* Clock 12               */
+	QE_CLK13,    /* Clock 13               */
+	QE_CLK14,    /* Clock 14               */
+	QE_CLK15,    /* Clock 15               */
+	QE_CLK16,    /* Clock 16               */
+	QE_CLK17,    /* Clock 17               */
+	QE_CLK18,    /* Clock 18               */
+	QE_CLK19,    /* Clock 19               */
+	QE_CLK20,    /* Clock 20               */
+	QE_CLK21,    /* Clock 21               */
+	QE_CLK22,    /* Clock 22               */
+	QE_CLK23,    /* Clock 23               */
+	QE_CLK24,    /* Clock 24               */
+	QE_CLK_DUMMY
+} qe_clock_e;
+
+/* QE CMXGCR register
+*/
+#define QE_CMXGCR_MII_ENET_MNG_MASK	0x00007000
+#define QE_CMXGCR_MII_ENET_MNG_SHIFT	12
+
+/* QE CMXUCR registers
+ */
+#define QE_CMXUCR_TX_CLK_SRC_MASK	0x0000000F
+
+/* QE BRG configuration register
+*/
+#define QE_BRGC_ENABLE			0x00010000
+#define QE_BRGC_DIVISOR_SHIFT		1
+#define QE_BRGC_DIVISOR_MAX		0xFFF
+#define QE_BRGC_DIV16			1
+
+/* QE SDMA registers
+*/
+#define QE_SDSR_BER1			0x02000000
+#define QE_SDSR_BER2			0x01000000
+
+#define QE_SDMR_GLB_1_MSK		0x80000000
+#define QE_SDMR_ADR_SEL			0x20000000
+#define QE_SDMR_BER1_MSK		0x02000000
+#define QE_SDMR_BER2_MSK		0x01000000
+#define QE_SDMR_EB1_MSK			0x00800000
+#define QE_SDMR_ER1_MSK			0x00080000
+#define QE_SDMR_ER2_MSK			0x00040000
+#define QE_SDMR_CEN_MASK		0x0000E000
+#define QE_SDMR_SBER_1			0x00000200
+#define QE_SDMR_SBER_2			0x00000200
+#define QE_SDMR_EB1_PR_MASK		0x000000C0
+#define QE_SDMR_ER1_PR			0x00000008
+
+#define QE_SDMR_CEN_SHIFT		13
+#define QE_SDMR_EB1_PR_SHIFT		6
+
+#define QE_SDTM_MSNUM_SHIFT		24
+
+#define QE_SDEBCR_BA_MASK		0x01FFFFFF
+
+void qe_config_iopin(u8 port, u8 pin, int dir, int open_drain, int assign);
+void qe_issue_cmd(uint cmd, uint sbc, u8 mcn, u32 cmd_data);
+uint qe_muram_alloc(uint size, uint align);
+void *qe_muram_addr(uint offset);
+int qe_get_snum(void);
+void qe_put_snum(u8 snum);
+void qe_init(uint qe_base);
+void qe_reset(void);
+void qe_assign_page(uint snum, uint para_ram_base);
+int qe_set_brg(uint brg, uint rate);
+int qe_set_mii_clk_src(int ucc_num);
+
+#endif /* __QE_H__ */