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authorTony Lindgren <tony@atomide.com>2008-07-03 11:24:36 +0200
committerTony Lindgren <tony@atomide.com>2008-07-03 11:24:36 +0200
commit0499bdeb1dec30325aa282a83f9374fa849aa01c (patch)
tree30f16c5516460e8b205d6be967017c9b8c90d4a4 /include/asm-arm/arch-omap
parentARM: OMAP: DMA: Make channels dynamic for multi-boot (diff)
downloadlinux-0499bdeb1dec30325aa282a83f9374fa849aa01c.tar.xz
linux-0499bdeb1dec30325aa282a83f9374fa849aa01c.zip
ARM: OMAP: DMA: Remove __REG access
Remove __REG access in DMA code, use dma_read/write instead: - dynamically set the omap_dma_base based on the omap type - omap_read/write becomes dma_read/write - dma channel registers are read with dma_ch_read/write Cc: David Brownell <david-b@pacbell.net> Cc: linux-usb@vger.kernel.org Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'include/asm-arm/arch-omap')
-rw-r--r--include/asm-arm/arch-omap/dma.h210
1 files changed, 120 insertions, 90 deletions
diff --git a/include/asm-arm/arch-omap/dma.h b/include/asm-arm/arch-omap/dma.h
index 46fe5a40a25e..d188100f8f45 100644
--- a/include/asm-arm/arch-omap/dma.h
+++ b/include/asm-arm/arch-omap/dma.h
@@ -22,107 +22,128 @@
#define __ASM_ARCH_DMA_H
/* Hardware registers for omap1 */
-#define OMAP_DMA_BASE (0xfffed800)
-#define OMAP_DMA_GCR (OMAP_DMA_BASE + 0x400)
-#define OMAP_DMA_GSCR (OMAP_DMA_BASE + 0x404)
-#define OMAP_DMA_GRST (OMAP_DMA_BASE + 0x408)
-#define OMAP_DMA_HW_ID (OMAP_DMA_BASE + 0x442)
-#define OMAP_DMA_PCH2_ID (OMAP_DMA_BASE + 0x444)
-#define OMAP_DMA_PCH0_ID (OMAP_DMA_BASE + 0x446)
-#define OMAP_DMA_PCH1_ID (OMAP_DMA_BASE + 0x448)
-#define OMAP_DMA_PCHG_ID (OMAP_DMA_BASE + 0x44a)
-#define OMAP_DMA_PCHD_ID (OMAP_DMA_BASE + 0x44c)
-#define OMAP_DMA_CAPS_0_U (OMAP_DMA_BASE + 0x44e)
-#define OMAP_DMA_CAPS_0_L (OMAP_DMA_BASE + 0x450)
-#define OMAP_DMA_CAPS_1_U (OMAP_DMA_BASE + 0x452)
-#define OMAP_DMA_CAPS_1_L (OMAP_DMA_BASE + 0x454)
-#define OMAP_DMA_CAPS_2 (OMAP_DMA_BASE + 0x456)
-#define OMAP_DMA_CAPS_3 (OMAP_DMA_BASE + 0x458)
-#define OMAP_DMA_CAPS_4 (OMAP_DMA_BASE + 0x45a)
-#define OMAP_DMA_PCH2_SR (OMAP_DMA_BASE + 0x460)
-#define OMAP_DMA_PCH0_SR (OMAP_DMA_BASE + 0x480)
-#define OMAP_DMA_PCH1_SR (OMAP_DMA_BASE + 0x482)
-#define OMAP_DMA_PCHD_SR (OMAP_DMA_BASE + 0x4c0)
-
-/* Hardware registers for omap2 */
-#if defined(CONFIG_ARCH_OMAP3)
-#define OMAP_DMA4_BASE (L4_34XX_BASE + 0x56000)
-#else /* CONFIG_ARCH_OMAP2 */
-#define OMAP_DMA4_BASE (L4_24XX_BASE + 0x56000)
-#endif
-
-#define OMAP_DMA4_REVISION (OMAP_DMA4_BASE + 0x00)
-#define OMAP_DMA4_GCR_REG (OMAP_DMA4_BASE + 0x78)
-#define OMAP_DMA4_IRQSTATUS_L0 (OMAP_DMA4_BASE + 0x08)
-#define OMAP_DMA4_IRQSTATUS_L1 (OMAP_DMA4_BASE + 0x0c)
-#define OMAP_DMA4_IRQSTATUS_L2 (OMAP_DMA4_BASE + 0x10)
-#define OMAP_DMA4_IRQSTATUS_L3 (OMAP_DMA4_BASE + 0x14)
-#define OMAP_DMA4_IRQENABLE_L0 (OMAP_DMA4_BASE + 0x18)
-#define OMAP_DMA4_IRQENABLE_L1 (OMAP_DMA4_BASE + 0x1c)
-#define OMAP_DMA4_IRQENABLE_L2 (OMAP_DMA4_BASE + 0x20)
-#define OMAP_DMA4_IRQENABLE_L3 (OMAP_DMA4_BASE + 0x24)
-#define OMAP_DMA4_SYSSTATUS (OMAP_DMA4_BASE + 0x28)
-#define OMAP_DMA4_OCP_SYSCONFIG (OMAP_DMA4_BASE + 0x2c)
-#define OMAP_DMA4_CAPS_0 (OMAP_DMA4_BASE + 0x64)
-#define OMAP_DMA4_CAPS_2 (OMAP_DMA4_BASE + 0x6c)
-#define OMAP_DMA4_CAPS_3 (OMAP_DMA4_BASE + 0x70)
-#define OMAP_DMA4_CAPS_4 (OMAP_DMA4_BASE + 0x74)
+#define OMAP1_DMA_BASE (0xfffed800)
+
+#define OMAP1_DMA_GCR 0x400
+#define OMAP1_DMA_GSCR 0x404
+#define OMAP1_DMA_GRST 0x408
+#define OMAP1_DMA_HW_ID 0x442
+#define OMAP1_DMA_PCH2_ID 0x444
+#define OMAP1_DMA_PCH0_ID 0x446
+#define OMAP1_DMA_PCH1_ID 0x448
+#define OMAP1_DMA_PCHG_ID 0x44a
+#define OMAP1_DMA_PCHD_ID 0x44c
+#define OMAP1_DMA_CAPS_0_U 0x44e
+#define OMAP1_DMA_CAPS_0_L 0x450
+#define OMAP1_DMA_CAPS_1_U 0x452
+#define OMAP1_DMA_CAPS_1_L 0x454
+#define OMAP1_DMA_CAPS_2 0x456
+#define OMAP1_DMA_CAPS_3 0x458
+#define OMAP1_DMA_CAPS_4 0x45a
+#define OMAP1_DMA_PCH2_SR 0x460
+#define OMAP1_DMA_PCH0_SR 0x480
+#define OMAP1_DMA_PCH1_SR 0x482
+#define OMAP1_DMA_PCHD_SR 0x4c0
+
+/* Hardware registers for omap2 and omap3 */
+#define OMAP24XX_DMA4_BASE (L4_24XX_BASE + 0x56000)
+#define OMAP34XX_DMA4_BASE (L4_34XX_BASE + 0x56000)
+
+#define OMAP_DMA4_REVISION 0x00
+#define OMAP_DMA4_GCR 0x78
+#define OMAP_DMA4_IRQSTATUS_L0 0x08
+#define OMAP_DMA4_IRQSTATUS_L1 0x0c
+#define OMAP_DMA4_IRQSTATUS_L2 0x10
+#define OMAP_DMA4_IRQSTATUS_L3 0x14
+#define OMAP_DMA4_IRQENABLE_L0 0x18
+#define OMAP_DMA4_IRQENABLE_L1 0x1c
+#define OMAP_DMA4_IRQENABLE_L2 0x20
+#define OMAP_DMA4_IRQENABLE_L3 0x24
+#define OMAP_DMA4_SYSSTATUS 0x28
+#define OMAP_DMA4_OCP_SYSCONFIG 0x2c
+#define OMAP_DMA4_CAPS_0 0x64
+#define OMAP_DMA4_CAPS_2 0x6c
+#define OMAP_DMA4_CAPS_3 0x70
+#define OMAP_DMA4_CAPS_4 0x74
#define OMAP1_LOGICAL_DMA_CH_COUNT 17
#define OMAP_DMA4_LOGICAL_DMA_CH_COUNT 32 /* REVISIT: Is this 32 + 2? */
-#ifdef CONFIG_ARCH_OMAP1
-
/* Common channel specific registers for omap1 */
-#define OMAP_DMA_CSDP_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x00)
-#define OMAP_DMA_CCR_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x02)
-#define OMAP_DMA_CICR_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x04)
-#define OMAP_DMA_CSR_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x06)
-#define OMAP_DMA_CEN_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x10)
-#define OMAP_DMA_CFN_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x12)
-#define OMAP_DMA_CSFI_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x14)
-#define OMAP_DMA_CSEI_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x16)
-#define OMAP_DMA_CSAC_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x18)
-#define OMAP_DMA_CDAC_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x1a)
-#define OMAP_DMA_CDEI_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x1c)
-#define OMAP_DMA_CDFI_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x1e)
-#define OMAP_DMA_CLNK_CTRL_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x28)
-
-#else
+#define OMAP1_DMA_CH_BASE(n) (0x40 * (n) + 0x00)
+#define OMAP1_DMA_CSDP(n) (0x40 * (n) + 0x00)
+#define OMAP1_DMA_CCR(n) (0x40 * (n) + 0x02)
+#define OMAP1_DMA_CICR(n) (0x40 * (n) + 0x04)
+#define OMAP1_DMA_CSR(n) (0x40 * (n) + 0x06)
+#define OMAP1_DMA_CEN(n) (0x40 * (n) + 0x10)
+#define OMAP1_DMA_CFN(n) (0x40 * (n) + 0x12)
+#define OMAP1_DMA_CSFI(n) (0x40 * (n) + 0x14)
+#define OMAP1_DMA_CSEI(n) (0x40 * (n) + 0x16)
+#define OMAP1_DMA_CPC(n) (0x40 * (n) + 0x18) /* 15xx only */
+#define OMAP1_DMA_CSAC(n) (0x40 * (n) + 0x18)
+#define OMAP1_DMA_CDAC(n) (0x40 * (n) + 0x1a)
+#define OMAP1_DMA_CDEI(n) (0x40 * (n) + 0x1c)
+#define OMAP1_DMA_CDFI(n) (0x40 * (n) + 0x1e)
+#define OMAP1_DMA_CLNK_CTRL(n) (0x40 * (n) + 0x28)
/* Common channel specific registers for omap2 */
-#define OMAP_DMA_CCR_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0x80)
-#define OMAP_DMA_CLNK_CTRL_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0x84)
-#define OMAP_DMA_CICR_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0x88)
-#define OMAP_DMA_CSR_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0x8c)
-#define OMAP_DMA_CSDP_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0x90)
-#define OMAP_DMA_CEN_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0x94)
-#define OMAP_DMA_CFN_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0x98)
-#define OMAP_DMA_CSEI_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0xa4)
-#define OMAP_DMA_CSFI_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0xa8)
-#define OMAP_DMA_CDEI_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0xac)
-#define OMAP_DMA_CDFI_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0xb0)
-#define OMAP_DMA_CSAC_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0xb4)
-#define OMAP_DMA_CDAC_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0xb8)
-
-#endif
+#define OMAP_DMA4_CH_BASE(n) (0x60 * (n) + 0x80)
+#define OMAP_DMA4_CCR(n) (0x60 * (n) + 0x80)
+#define OMAP_DMA4_CLNK_CTRL(n) (0x60 * (n) + 0x84)
+#define OMAP_DMA4_CICR(n) (0x60 * (n) + 0x88)
+#define OMAP_DMA4_CSR(n) (0x60 * (n) + 0x8c)
+#define OMAP_DMA4_CSDP(n) (0x60 * (n) + 0x90)
+#define OMAP_DMA4_CEN(n) (0x60 * (n) + 0x94)
+#define OMAP_DMA4_CFN(n) (0x60 * (n) + 0x98)
+#define OMAP_DMA4_CSEI(n) (0x60 * (n) + 0xa4)
+#define OMAP_DMA4_CSFI(n) (0x60 * (n) + 0xa8)
+#define OMAP_DMA4_CDEI(n) (0x60 * (n) + 0xac)
+#define OMAP_DMA4_CDFI(n) (0x60 * (n) + 0xb0)
+#define OMAP_DMA4_CSAC(n) (0x60 * (n) + 0xb4)
+#define OMAP_DMA4_CDAC(n) (0x60 * (n) + 0xb8)
/* Channel specific registers only on omap1 */
-#define OMAP1_DMA_CSSA_L_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x08)
-#define OMAP1_DMA_CSSA_U_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x0a)
-#define OMAP1_DMA_CDSA_L_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x0c)
-#define OMAP1_DMA_CDSA_U_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x0e)
-#define OMAP1_DMA_COLOR_L_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x20)
-#define OMAP1_DMA_CCR2_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x24)
-#define OMAP1_DMA_COLOR_U_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x22)
-#define OMAP1_DMA_LCH_CTRL_REG(n) __REG16(OMAP_DMA_BASE + 0x40 * (n) + 0x2a)
+#define OMAP1_DMA_CSSA_L(n) (0x40 * (n) + 0x08)
+#define OMAP1_DMA_CSSA_U(n) (0x40 * (n) + 0x0a)
+#define OMAP1_DMA_CDSA_L(n) (0x40 * (n) + 0x0c)
+#define OMAP1_DMA_CDSA_U(n) (0x40 * (n) + 0x0e)
+#define OMAP1_DMA_COLOR_L(n) (0x40 * (n) + 0x20)
+#define OMAP1_DMA_COLOR_U(n) (0x40 * (n) + 0x22)
+#define OMAP1_DMA_CCR2(n) (0x40 * (n) + 0x24)
+#define OMAP1_DMA_LCH_CTRL(n) (0x40 * (n) + 0x2a) /* not on 15xx */
+#define OMAP1_DMA_CCEN(n) 0
+#define OMAP1_DMA_CCFN(n) 0
/* Channel specific registers only on omap2 */
-#define OMAP2_DMA_CSSA_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0x9c)
-#define OMAP2_DMA_CDSA_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0xa0)
-#define OMAP2_DMA_CCEN_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0xbc)
-#define OMAP2_DMA_CCFN_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0xc0)
-#define OMAP2_DMA_COLOR_REG(n) __REG32(OMAP_DMA4_BASE + 0x60 * (n) + 0xc4)
+#define OMAP_DMA4_CSSA(n) (0x60 * (n) + 0x9c)
+#define OMAP_DMA4_CDSA(n) (0x60 * (n) + 0xa0)
+#define OMAP_DMA4_CCEN(n) (0x60 * (n) + 0xbc)
+#define OMAP_DMA4_CCFN(n) (0x60 * (n) + 0xc0)
+#define OMAP_DMA4_COLOR(n) (0x60 * (n) + 0xc4)
+
+/* Dummy defines to keep multi-omap compiles happy */
+#define OMAP1_DMA_REVISION 0
+#define OMAP1_DMA_IRQSTATUS_L0 0
+#define OMAP1_DMA_IRQENABLE_L0 0
+#define OMAP1_DMA_OCP_SYSCONFIG 0
+#define OMAP_DMA4_HW_ID 0
+#define OMAP_DMA4_CAPS_0_L 0
+#define OMAP_DMA4_CAPS_0_U 0
+#define OMAP_DMA4_CAPS_1_L 0
+#define OMAP_DMA4_CAPS_1_U 0
+#define OMAP_DMA4_GSCR 0
+#define OMAP_DMA4_CPC(n) 0
+
+#define OMAP_DMA4_LCH_CTRL(n) 0
+#define OMAP_DMA4_COLOR_L(n) 0
+#define OMAP_DMA4_COLOR_U(n) 0
+#define OMAP_DMA4_CCR2(n) 0
+#define OMAP1_DMA_CSSA(n) 0
+#define OMAP1_DMA_CDSA(n) 0
+#define OMAP_DMA4_CSSA_L(n) 0
+#define OMAP_DMA4_CSSA_U(n) 0
+#define OMAP_DMA4_CDSA_L(n) 0
+#define OMAP_DMA4_CDSA_U(n) 0
/*----------------------------------------------------------------------------*/
@@ -369,6 +390,13 @@ enum omap_dma_write_mode {
OMAP_DMA_WRITE_LAST_NON_POSTED
};
+enum omap_dma_channel_mode {
+ OMAP_DMA_LCH_2D = 0,
+ OMAP_DMA_LCH_G,
+ OMAP_DMA_LCH_P,
+ OMAP_DMA_LCH_PD
+};
+
struct omap_dma_channel_params {
int data_type; /* data type 8,16,32 */
int elem_count; /* number of elements in a frame */
@@ -417,6 +445,7 @@ extern void omap_set_dma_transfer_params(int lch, int data_type,
extern void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode,
u32 color);
extern void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode);
+extern void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode);
extern void omap_set_dma_src_params(int lch, int src_port, int src_amode,
unsigned long src_start,
@@ -447,6 +476,7 @@ extern dma_addr_t omap_get_dma_src_pos(int lch);
extern dma_addr_t omap_get_dma_dst_pos(int lch);
extern int omap_get_dma_src_addr_counter(int lch);
extern void omap_clear_dma(int lch);
+extern int omap_get_dma_active_status(int lch);
extern int omap_dma_running(void);
extern void omap_dma_set_global_params(int arb_rate, int max_fifo_depth,
int tparams);