summaryrefslogtreecommitdiff
path: root/arch/arm/plat-mxc
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/plat-mxc')
-rw-r--r--arch/arm/plat-mxc/Makefile4
-rw-r--r--arch/arm/plat-mxc/include/mach/debug-macro.S2
-rw-r--r--arch/arm/plat-mxc/include/mach/mx21-usbhost.h38
-rw-r--r--arch/arm/plat-mxc/include/mach/vmalloc.h2
-rw-r--r--arch/arm/plat-mxc/ssi-fiq-ksym.c20
-rw-r--r--arch/arm/plat-mxc/ssi-fiq.S134
6 files changed, 198 insertions, 2 deletions
diff --git a/arch/arm/plat-mxc/Makefile b/arch/arm/plat-mxc/Makefile
index a72a5e4ca20e..895bc3c5e0c0 100644
--- a/arch/arm/plat-mxc/Makefile
+++ b/arch/arm/plat-mxc/Makefile
@@ -17,3 +17,7 @@ obj-$(CONFIG_USB_EHCI_MXC) += ehci.o
obj-$(CONFIG_MXC_ULPI) += ulpi.o
obj-$(CONFIG_ARCH_MXC_AUDMUX_V1) += audmux-v1.o
obj-$(CONFIG_ARCH_MXC_AUDMUX_V2) += audmux-v2.o
+ifdef CONFIG_SND_IMX_SOC
+obj-y += ssi-fiq.o
+obj-y += ssi-fiq-ksym.o
+endif
diff --git a/arch/arm/plat-mxc/include/mach/debug-macro.S b/arch/arm/plat-mxc/include/mach/debug-macro.S
index 133d66bfb533..0b6e11eaeb8c 100644
--- a/arch/arm/plat-mxc/include/mach/debug-macro.S
+++ b/arch/arm/plat-mxc/include/mach/debug-macro.S
@@ -62,7 +62,7 @@
#define UART_PADDR MXC91231_UART2_BASE_ADDR
#define UART_VADDR MXC91231_IO_ADDRESS(MXC91231_UART2_BASE_ADDR)
#endif
- .macro addruart,rx
+ .macro addruart, rx, tmp
mrc p15, 0, \rx, c1, c0
tst \rx, #1 @ MMU enabled?
ldreq \rx, =UART_PADDR @ physical
diff --git a/arch/arm/plat-mxc/include/mach/mx21-usbhost.h b/arch/arm/plat-mxc/include/mach/mx21-usbhost.h
new file mode 100644
index 000000000000..22d0b596262c
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/mx21-usbhost.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2009 Martin Fuzzey <mfuzzey@gmail.com>
+ *
+ * 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.
+ */
+
+#ifndef __ASM_ARCH_MX21_USBH
+#define __ASM_ARCH_MX21_USBH
+
+enum mx21_usbh_xcvr {
+ /* Values below as used by hardware (HWMODE register) */
+ MX21_USBXCVR_TXDIF_RXDIF = 0,
+ MX21_USBXCVR_TXDIF_RXSE = 1,
+ MX21_USBXCVR_TXSE_RXDIF = 2,
+ MX21_USBXCVR_TXSE_RXSE = 3,
+};
+
+struct mx21_usbh_platform_data {
+ enum mx21_usbh_xcvr host_xcvr; /* tranceiver mode host 1,2 ports */
+ enum mx21_usbh_xcvr otg_xcvr; /* tranceiver mode otg (as host) port */
+ u16 enable_host1:1,
+ enable_host2:1,
+ enable_otg_host:1, /* enable "OTG" port (as host) */
+ host1_xcverless:1, /* traceiverless host1 port */
+ host1_txenoe:1, /* output enable host1 transmit enable */
+ otg_ext_xcvr:1, /* external tranceiver for OTG port */
+ unused:10;
+};
+
+#endif /* __ASM_ARCH_MX21_USBH */
diff --git a/arch/arm/plat-mxc/include/mach/vmalloc.h b/arch/arm/plat-mxc/include/mach/vmalloc.h
index 62d97623412f..44243a278434 100644
--- a/arch/arm/plat-mxc/include/mach/vmalloc.h
+++ b/arch/arm/plat-mxc/include/mach/vmalloc.h
@@ -21,6 +21,6 @@
#define __ASM_ARCH_MXC_VMALLOC_H__
/* vmalloc ending address */
-#define VMALLOC_END 0xF4000000
+#define VMALLOC_END 0xf4000000UL
#endif /* __ASM_ARCH_MXC_VMALLOC_H__ */
diff --git a/arch/arm/plat-mxc/ssi-fiq-ksym.c b/arch/arm/plat-mxc/ssi-fiq-ksym.c
new file mode 100644
index 000000000000..b5fad454da78
--- /dev/null
+++ b/arch/arm/plat-mxc/ssi-fiq-ksym.c
@@ -0,0 +1,20 @@
+/*
+ * Exported ksyms for the SSI FIQ handler
+ *
+ * Copyright (C) 2009, Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+
+#include <mach/ssi.h>
+
+EXPORT_SYMBOL(imx_ssi_fiq_tx_buffer);
+EXPORT_SYMBOL(imx_ssi_fiq_rx_buffer);
+EXPORT_SYMBOL(imx_ssi_fiq_start);
+EXPORT_SYMBOL(imx_ssi_fiq_end);
+EXPORT_SYMBOL(imx_ssi_fiq_base);
+
diff --git a/arch/arm/plat-mxc/ssi-fiq.S b/arch/arm/plat-mxc/ssi-fiq.S
new file mode 100644
index 000000000000..4ddce565b353
--- /dev/null
+++ b/arch/arm/plat-mxc/ssi-fiq.S
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2009 Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+/*
+ * r8 = bit 0-15: tx offset, bit 16-31: tx buffer size
+ * r9 = bit 0-15: rx offset, bit 16-31: rx buffer size
+ */
+
+#define SSI_STX0 0x00
+#define SSI_SRX0 0x08
+#define SSI_SISR 0x14
+#define SSI_SIER 0x18
+#define SSI_SACNT 0x38
+
+#define SSI_SACNT_AC97EN (1 << 0)
+
+#define SSI_SIER_TFE0_EN (1 << 0)
+#define SSI_SISR_TFE0 (1 << 0)
+#define SSI_SISR_RFF0 (1 << 2)
+#define SSI_SIER_RFF0_EN (1 << 2)
+
+ .text
+ .global imx_ssi_fiq_start
+ .global imx_ssi_fiq_end
+ .global imx_ssi_fiq_base
+ .global imx_ssi_fiq_rx_buffer
+ .global imx_ssi_fiq_tx_buffer
+
+imx_ssi_fiq_start:
+ ldr r12, imx_ssi_fiq_base
+
+ /* TX */
+ ldr r11, imx_ssi_fiq_tx_buffer
+
+ /* shall we send? */
+ ldr r13, [r12, #SSI_SIER]
+ tst r13, #SSI_SIER_TFE0_EN
+ beq 1f
+
+ /* TX FIFO empty? */
+ ldr r13, [r12, #SSI_SISR]
+ tst r13, #SSI_SISR_TFE0
+ beq 1f
+
+ mov r10, #0x10000
+ sub r10, #1
+ and r10, r10, r8 /* r10: current buffer offset */
+
+ add r11, r11, r10
+
+ ldrh r13, [r11]
+ strh r13, [r12, #SSI_STX0]
+
+ ldrh r13, [r11, #2]
+ strh r13, [r12, #SSI_STX0]
+
+ ldrh r13, [r11, #4]
+ strh r13, [r12, #SSI_STX0]
+
+ ldrh r13, [r11, #6]
+ strh r13, [r12, #SSI_STX0]
+
+ add r10, #8
+ lsr r13, r8, #16 /* r13: buffer size */
+ cmp r10, r13
+ lslgt r8, r13, #16
+ addle r8, #8
+1:
+ /* RX */
+
+ /* shall we receive? */
+ ldr r13, [r12, #SSI_SIER]
+ tst r13, #SSI_SIER_RFF0_EN
+ beq 1f
+
+ /* RX FIFO full? */
+ ldr r13, [r12, #SSI_SISR]
+ tst r13, #SSI_SISR_RFF0
+ beq 1f
+
+ ldr r11, imx_ssi_fiq_rx_buffer
+
+ mov r10, #0x10000
+ sub r10, #1
+ and r10, r10, r9 /* r10: current buffer offset */
+
+ add r11, r11, r10
+
+ ldr r13, [r12, #SSI_SACNT]
+ tst r13, #SSI_SACNT_AC97EN
+
+ ldr r13, [r12, #SSI_SRX0]
+ strh r13, [r11]
+
+ ldr r13, [r12, #SSI_SRX0]
+ strh r13, [r11, #2]
+
+ /* dummy read to skip slot 12 */
+ ldrne r13, [r12, #SSI_SRX0]
+
+ ldr r13, [r12, #SSI_SRX0]
+ strh r13, [r11, #4]
+
+ ldr r13, [r12, #SSI_SRX0]
+ strh r13, [r11, #6]
+
+ /* dummy read to skip slot 12 */
+ ldrne r13, [r12, #SSI_SRX0]
+
+ add r10, #8
+ lsr r13, r9, #16 /* r13: buffer size */
+ cmp r10, r13
+ lslgt r9, r13, #16
+ addle r9, #8
+
+1:
+ @ return from FIQ
+ subs pc, lr, #4
+imx_ssi_fiq_base:
+ .word 0x0
+imx_ssi_fiq_rx_buffer:
+ .word 0x0
+imx_ssi_fiq_tx_buffer:
+ .word 0x0
+imx_ssi_fiq_end:
+
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-30 07:43:17 +0300