Add AVR32 architecture support

Patch by Haavard Skinnemoen, 6 Sep 2006 16:23:02 +0200

This patch adds common infrastructure code for the Atmel AVR32
architecture. See doc/README.AVR32 for details.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

1 files changed, 279 insertions, 0 deletions

diff --git a/include/asm-avr32/sysreg.h b/include/asm-avr32/sysreg.h
new file mode 100644
index 0000000..72ad49e
--- /dev/null
+++ b/include/asm-avr32/sysreg.h
@@ -0,0 +1,279 @@
+/*
+ * System registers for AVR32
+ */
+#ifndef __ASM_AVR32_SYSREG_H__
+#define __ASM_AVR32_SYSREG_H__
+
+/* system register offsets */
+#define SYSREG_SR			0x0000
+#define SYSREG_EVBA			0x0004
+#define SYSREG_ACBA			0x0008
+#define SYSREG_CPUCR			0x000c
+#define SYSREG_ECR			0x0010
+#define SYSREG_RSR_SUP			0x0014
+#define SYSREG_RSR_INT0			0x0018
+#define SYSREG_RSR_INT1			0x001c
+#define SYSREG_RSR_INT2			0x0020
+#define SYSREG_RSR_INT3			0x0024
+#define SYSREG_RSR_EX			0x0028
+#define SYSREG_RSR_NMI			0x002c
+#define SYSREG_RSR_DBG			0x0030
+#define SYSREG_RAR_SUP			0x0034
+#define SYSREG_RAR_INT0			0x0038
+#define SYSREG_RAR_INT1			0x003c
+#define SYSREG_RAR_INT2			0x0040
+#define SYSREG_RAR_INT3			0x0044
+#define SYSREG_RAR_EX			0x0048
+#define SYSREG_RAR_NMI			0x004c
+#define SYSREG_RAR_DBG			0x0050
+#define SYSREG_JECR			0x0054
+#define SYSREG_JOSP			0x0058
+#define SYSREG_JAVA_LV0			0x005c
+#define SYSREG_JAVA_LV1			0x0060
+#define SYSREG_JAVA_LV2			0x0064
+#define SYSREG_JAVA_LV3			0x0068
+#define SYSREG_JAVA_LV4			0x006c
+#define SYSREG_JAVA_LV5			0x0070
+#define SYSREG_JAVA_LV6			0x0074
+#define SYSREG_JAVA_LV7			0x0078
+#define SYSREG_JTBA			0x007c
+#define SYSREG_JBCR			0x0080
+#define SYSREG_CONFIG0			0x0100
+#define SYSREG_CONFIG1			0x0104
+#define SYSREG_COUNT			0x0108
+#define SYSREG_COMPARE			0x010c
+#define SYSREG_TLBEHI			0x0110
+#define SYSREG_TLBELO			0x0114
+#define SYSREG_PTBR			0x0118
+#define SYSREG_TLBEAR			0x011c
+#define SYSREG_MMUCR			0x0120
+#define SYSREG_TLBARLO			0x0124
+#define SYSREG_TLBARHI			0x0128
+#define SYSREG_PCCNT			0x012c
+#define SYSREG_PCNT0			0x0130
+#define SYSREG_PCNT1			0x0134
+#define SYSREG_PCCR			0x0138
+#define SYSREG_BEAR			0x013c
+#define SYSREG_SABAL			0x0300
+#define SYSREG_SABAH			0x0304
+#define SYSREG_SABD			0x0308
+
+/* Bitfields in SR */
+#define SYSREG_SR_C_OFFSET		0
+#define SYSREG_SR_C_SIZE		1
+#define SYSREG_Z_OFFSET			1
+#define SYSREG_Z_SIZE			1
+#define SYSREG_SR_N_OFFSET		2
+#define SYSREG_SR_N_SIZE		1
+#define SYSREG_SR_V_OFFSET		3
+#define SYSREG_SR_V_SIZE		1
+#define SYSREG_Q_OFFSET			4
+#define SYSREG_Q_SIZE			1
+#define SYSREG_L_OFFSET			5
+#define SYSREG_L_SIZE			1
+#define SYSREG_T_OFFSET			14
+#define SYSREG_T_SIZE			1
+#define SYSREG_SR_R_OFFSET		15
+#define SYSREG_SR_R_SIZE		1
+#define SYSREG_GM_OFFSET		16
+#define SYSREG_GM_SIZE			1
+#define SYSREG_I0M_OFFSET		17
+#define SYSREG_I0M_SIZE			1
+#define SYSREG_I1M_OFFSET		18
+#define SYSREG_I1M_SIZE			1
+#define SYSREG_I2M_OFFSET		19
+#define SYSREG_I2M_SIZE			1
+#define SYSREG_I3M_OFFSET		20
+#define SYSREG_I3M_SIZE			1
+#define SYSREG_EM_OFFSET		21
+#define SYSREG_EM_SIZE			1
+#define SYSREG_M0_OFFSET		22
+#define SYSREG_M0_SIZE			1
+#define SYSREG_M1_OFFSET		23
+#define SYSREG_M1_SIZE			1
+#define SYSREG_M2_OFFSET		24
+#define SYSREG_M2_SIZE			1
+#define SYSREG_SR_D_OFFSET		26
+#define SYSREG_SR_D_SIZE		1
+#define SYSREG_DM_OFFSET		27
+#define SYSREG_DM_SIZE			1
+#define SYSREG_SR_J_OFFSET		28
+#define SYSREG_SR_J_SIZE		1
+#define SYSREG_H_OFFSET			29
+#define SYSREG_H_SIZE			1
+
+/* Bitfields in CPUCR */
+#define SYSREG_BI_OFFSET		0
+#define SYSREG_BI_SIZE			1
+#define SYSREG_BE_OFFSET		1
+#define SYSREG_BE_SIZE			1
+#define SYSREG_FE_OFFSET		2
+#define SYSREG_FE_SIZE			1
+#define SYSREG_RE_OFFSET		3
+#define SYSREG_RE_SIZE			1
+#define SYSREG_IBE_OFFSET		4
+#define SYSREG_IBE_SIZE			1
+#define SYSREG_IEE_OFFSET		5
+#define SYSREG_IEE_SIZE			1
+
+/* Bitfields in ECR */
+#define SYSREG_ECR_OFFSET		0
+#define SYSREG_ECR_SIZE			32
+
+/* Bitfields in CONFIG0 */
+#define SYSREG_CONFIG0_R_OFFSET		0
+#define SYSREG_CONFIG0_R_SIZE		1
+#define SYSREG_CONFIG0_D_OFFSET		1
+#define SYSREG_CONFIG0_D_SIZE		1
+#define SYSREG_CONFIG0_S_OFFSET		2
+#define SYSREG_CONFIG0_S_SIZE		1
+#define SYSREG_O_OFFSET			3
+#define SYSREG_O_SIZE			1
+#define SYSREG_P_OFFSET			4
+#define SYSREG_P_SIZE			1
+#define SYSREG_CONFIG0_J_OFFSET		5
+#define SYSREG_CONFIG0_J_SIZE		1
+#define SYSREG_F_OFFSET			6
+#define SYSREG_F_SIZE			1
+#define SYSREG_MMUT_OFFSET		7
+#define SYSREG_MMUT_SIZE		3
+#define SYSREG_AR_OFFSET		10
+#define SYSREG_AR_SIZE			3
+#define SYSREG_AT_OFFSET		13
+#define SYSREG_AT_SIZE			3
+#define SYSREG_PROCESSORREVISION_OFFSET	16
+#define SYSREG_PROCESSORREVISION_SIZE	8
+#define SYSREG_PROCESSORID_OFFSET	24
+#define SYSREG_PROCESSORID_SIZE		8
+
+/* Bitfields in CONFIG1 */
+#define SYSREG_DASS_OFFSET		0
+#define SYSREG_DASS_SIZE		3
+#define SYSREG_DLSZ_OFFSET		3
+#define SYSREG_DLSZ_SIZE		3
+#define SYSREG_DSET_OFFSET		6
+#define SYSREG_DSET_SIZE		4
+#define SYSREG_IASS_OFFSET		10
+#define SYSREG_IASS_SIZE		3
+#define SYSREG_ILSZ_OFFSET		13
+#define SYSREG_ILSZ_SIZE		3
+#define SYSREG_ISET_OFFSET		16
+#define SYSREG_ISET_SIZE		4
+#define SYSREG_DMMUSZ_OFFSET		20
+#define SYSREG_DMMUSZ_SIZE		6
+#define SYSREG_IMMUSZ_OFFSET		26
+#define SYSREG_IMMUSZ_SIZE		6
+
+/* Bitfields in TLBEHI */
+#define SYSREG_ASID_OFFSET		0
+#define SYSREG_ASID_SIZE		8
+#define SYSREG_TLBEHI_I_OFFSET		8
+#define SYSREG_TLBEHI_I_SIZE		1
+#define SYSREG_TLBEHI_V_OFFSET		9
+#define SYSREG_TLBEHI_V_SIZE		1
+#define SYSREG_VPN_OFFSET		10
+#define SYSREG_VPN_SIZE			22
+
+/* Bitfields in TLBELO */
+#define SYSREG_W_OFFSET			0
+#define SYSREG_W_SIZE			1
+#define SYSREG_TLBELO_D_OFFSET		1
+#define SYSREG_TLBELO_D_SIZE		1
+#define SYSREG_SZ_OFFSET		2
+#define SYSREG_SZ_SIZE			2
+#define SYSREG_AP_OFFSET		4
+#define SYSREG_AP_SIZE			3
+#define SYSREG_B_OFFSET			7
+#define SYSREG_B_SIZE			1
+#define SYSREG_G_OFFSET			8
+#define SYSREG_G_SIZE			1
+#define SYSREG_TLBELO_C_OFFSET		9
+#define SYSREG_TLBELO_C_SIZE		1
+#define SYSREG_PFN_OFFSET		10
+#define SYSREG_PFN_SIZE			22
+
+/* Bitfields in MMUCR */
+#define SYSREG_E_OFFSET			0
+#define SYSREG_E_SIZE			1
+#define SYSREG_M_OFFSET			1
+#define SYSREG_M_SIZE			1
+#define SYSREG_MMUCR_I_OFFSET		2
+#define SYSREG_MMUCR_I_SIZE		1
+#define SYSREG_MMUCR_N_OFFSET		3
+#define SYSREG_MMUCR_N_SIZE		1
+#define SYSREG_MMUCR_S_OFFSET		4
+#define SYSREG_MMUCR_S_SIZE		1
+#define SYSREG_DLA_OFFSET		8
+#define SYSREG_DLA_SIZE			6
+#define SYSREG_DRP_OFFSET		14
+#define SYSREG_DRP_SIZE			6
+#define SYSREG_ILA_OFFSET		20
+#define SYSREG_ILA_SIZE			6
+#define SYSREG_IRP_OFFSET		26
+#define SYSREG_IRP_SIZE			6
+
+/* Bitfields in PCCR */
+#define SYSREG_PCCR_R_OFFSET		1
+#define SYSREG_PCCR_R_SIZE		1
+#define SYSREG_PCCR_C_OFFSET		2
+#define SYSREG_PCCR_C_SIZE		1
+#define SYSREG_PCCR_S_OFFSET		3
+#define SYSREG_PCCR_S_SIZE		1
+#define SYSREG_IEC_OFFSET		4
+#define SYSREG_IEC_SIZE			1
+#define SYSREG_IE0_OFFSET		5
+#define SYSREG_IE0_SIZE			1
+#define SYSREG_IE1_OFFSET		6
+#define SYSREG_IE1_SIZE			1
+#define SYSREG_FC_OFFSET		8
+#define SYSREG_FC_SIZE			1
+#define SYSREG_F0_OFFSET		9
+#define SYSREG_F0_SIZE			1
+#define SYSREG_F1_OFFSET		10
+#define SYSREG_F1_SIZE			1
+#define SYSREG_CONF0_OFFSET		12
+#define SYSREG_CONF0_SIZE		6
+#define SYSREG_CONF1_OFFSET		18
+#define SYSREG_CONF1_SIZE		6
+
+/* Constants for ECR */
+#define ECR_UNRECOVERABLE		0
+#define ECR_TLB_MULTIPLE		1
+#define ECR_BUS_ERROR_WRITE		2
+#define ECR_BUS_ERROR_READ		3
+#define ECR_NMI				4
+#define ECR_ADDR_ALIGN_X		5
+#define ECR_PROTECTION_X		6
+#define ECR_DEBUG			7
+#define ECR_ILLEGAL_OPCODE		8
+#define ECR_UNIMPL_INSTRUCTION		9
+#define ECR_PRIVILEGE_VIOLATION		10
+#define ECR_FPE				11
+#define ECR_COPROC_ABSENT		12
+#define ECR_ADDR_ALIGN_R		13
+#define ECR_ADDR_ALIGN_W		14
+#define ECR_PROTECTION_R		15
+#define ECR_PROTECTION_W		16
+#define ECR_DTLB_MODIFIED		17
+#define ECR_TLB_MISS_X			20
+#define ECR_TLB_MISS_R			24
+#define ECR_TLB_MISS_W			28
+
+/* Bit manipulation macros */
+#define SYSREG_BIT(name)		(1 << SYSREG_##name##_OFFSET)
+#define SYSREG_BF(name,value)				\
+	(((value) & ((1 << SYSREG_##name##_SIZE) - 1))	\
+	 << SYSREG_##name##_OFFSET)
+#define SYSREG_BFEXT(name,value)			\
+	(((value) >> SYSREG_##name##_OFFSET)		\
+	 & ((1 << SYSREG_##name##_SIZE) - 1))
+#define SYSREG_BFINS(name,value,old)			\
+	(((old) & ~(((1 << SYSREG_##name##_SIZE) - 1)	\
+		    << SYSREG_##name##_OFFSET))		\
+	 | SYSREG_BF(name,value))
+
+/* Register access macros */
+#define sysreg_read(reg)		__builtin_mfsr(SYSREG_##reg)
+#define sysreg_write(reg, value)	__builtin_mtsr(SYSREG_##reg, value)
+
+#endif /* __ASM_AVR32_SYSREG_H__ */