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authorArnd Bergmann <arnd@arndb.de>2013-01-28 21:48:47 +0000
committerArnd Bergmann <arnd@arndb.de>2013-03-12 18:02:06 +0100
commit6e8887f60f6038e822462ff815b30074af62b847 (patch)
treea8df11ca5021d06e213d29a1dbc06599a3ce0d15
parent1ef865bb4578a42d1a2ac9c0a854d9da4f8e048e (diff)
downloadop-kernel-dev-6e8887f60f6038e822462ff815b30074af62b847.zip
op-kernel-dev-6e8887f60f6038e822462ff815b30074af62b847.tar.gz
ARM: SPEAr13xx: Pass generic DW DMAC platform data from DT
This replaces an earlier patch from Viresh Kumar to move the spear platform over to the generic DMA binding. This version is now based on the merged multiplatform capable spear platform, rather than the separate spear13xx/3xx/6xx directories. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Vinod Koul <vinod.koul@linux.intel.com> Cc: devicetree-discuss@lists.ozlabs.org Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: spear-devel@list.st.com
-rw-r--r--arch/arm/boot/dts/spear1340.dtsi3
-rw-r--r--arch/arm/boot/dts/spear13xx.dtsi25
-rw-r--r--arch/arm/mach-spear/generic.h5
-rw-r--r--arch/arm/mach-spear/include/mach/spear.h2
-rw-r--r--arch/arm/mach-spear/spear1310.c30
-rw-r--r--arch/arm/mach-spear/spear1340.c32
-rw-r--r--arch/arm/mach-spear/spear13xx-dma.h128
-rw-r--r--arch/arm/mach-spear/spear13xx.c58
8 files changed, 29 insertions, 254 deletions
diff --git a/arch/arm/boot/dts/spear1340.dtsi b/arch/arm/boot/dts/spear1340.dtsi
index 34da11a..e1786a0 100644
--- a/arch/arm/boot/dts/spear1340.dtsi
+++ b/arch/arm/boot/dts/spear1340.dtsi
@@ -113,6 +113,9 @@
reg = <0xb4100000 0x1000>;
interrupts = <0 105 0x4>;
status = "disabled";
+ dmas = <&dwdma0 0x600 0 0 1>, /* 0xC << 11 */
+ <&dwdma0 0x680 0 1 0>; /* 0xD << 7 */
+ dma-names = "tx", "rx";
};
thermal@e07008c4 {
diff --git a/arch/arm/boot/dts/spear13xx.dtsi b/arch/arm/boot/dts/spear13xx.dtsi
index b4ca60f..45597fd 100644
--- a/arch/arm/boot/dts/spear13xx.dtsi
+++ b/arch/arm/boot/dts/spear13xx.dtsi
@@ -98,13 +98,24 @@
reg = <0xb2800000 0x1000>;
interrupts = <0 29 0x4>;
status = "disabled";
+ dmas = <&dwdma0 0 0 0 0>;
+ dma-names = "data";
};
- dma@ea800000 {
+ dwdma0: dma@ea800000 {
compatible = "snps,dma-spear1340";
reg = <0xea800000 0x1000>;
interrupts = <0 19 0x4>;
status = "disabled";
+
+ dma-channels = <8>;
+ #dma-cells = <3>;
+ dma-requests = <32>;
+ chan_allocation_order = <1>;
+ chan_priority = <1>;
+ block_size = <0xfff>;
+ dma-masters = <2>;
+ data_width = <3 3 0 0>;
};
dma@eb000000 {
@@ -112,6 +123,15 @@
reg = <0xeb000000 0x1000>;
interrupts = <0 59 0x4>;
status = "disabled";
+
+ dma-requests = <32>;
+ dma-channels = <8>;
+ dma-masters = <2>;
+ #dma-cells = <3>;
+ chan_allocation_order = <1>;
+ chan_priority = <1>;
+ block_size = <0xfff>;
+ data_width = <3 3 0 0>;
};
fsmc: flash@b0000000 {
@@ -261,6 +281,9 @@
#size-cells = <0>;
interrupts = <0 31 0x4>;
status = "disabled";
+ dmas = <&dwdma0 0x2000 0 0 0>, /* 0x4 << 11 */
+ <&dwdma0 0x0280 0 0 0>; /* 0x5 << 7 */
+ dma-names = "tx", "rx";
};
rtc@e0580000 {
diff --git a/arch/arm/mach-spear/generic.h b/arch/arm/mach-spear/generic.h
index 8ba7e75..a9fd453 100644
--- a/arch/arm/mach-spear/generic.h
+++ b/arch/arm/mach-spear/generic.h
@@ -22,11 +22,6 @@ extern void spear13xx_timer_init(void);
extern void spear3xx_timer_init(void);
extern struct pl022_ssp_controller pl022_plat_data;
extern struct pl08x_platform_data pl080_plat_data;
-extern struct dw_dma_platform_data dmac_plat_data;
-extern struct dw_dma_slave cf_dma_priv;
-extern struct dw_dma_slave nand_read_dma_priv;
-extern struct dw_dma_slave nand_write_dma_priv;
-bool dw_dma_filter(struct dma_chan *chan, void *slave);
void __init spear_setup_of_timer(void);
void __init spear3xx_clk_init(void __iomem *misc_base,
diff --git a/arch/arm/mach-spear/include/mach/spear.h b/arch/arm/mach-spear/include/mach/spear.h
index 374ddc3..cf3a536 100644
--- a/arch/arm/mach-spear/include/mach/spear.h
+++ b/arch/arm/mach-spear/include/mach/spear.h
@@ -82,8 +82,6 @@
#define VA_L2CC_BASE IOMEM(UL(0xFB000000))
/* others */
-#define DMAC0_BASE UL(0xEA800000)
-#define DMAC1_BASE UL(0xEB000000)
#define MCIF_CF_BASE UL(0xB2800000)
/* Debug uart for linux, will be used for debug and uncompress messages */
diff --git a/arch/arm/mach-spear/spear1310.c b/arch/arm/mach-spear/spear1310.c
index ed3b5c2..9eaac2c 100644
--- a/arch/arm/mach-spear/spear1310.c
+++ b/arch/arm/mach-spear/spear1310.c
@@ -23,40 +23,12 @@
#include <mach/spear.h>
/* Base addresses */
-#define SPEAR1310_SSP1_BASE UL(0x5D400000)
-#define SPEAR1310_SATA0_BASE UL(0xB1000000)
-#define SPEAR1310_SATA1_BASE UL(0xB1800000)
-#define SPEAR1310_SATA2_BASE UL(0xB4000000)
-
#define SPEAR1310_RAS_GRP1_BASE UL(0xD8000000)
#define VA_SPEAR1310_RAS_GRP1_BASE UL(0xFA000000)
-static struct arasan_cf_pdata cf_pdata = {
- .cf_if_clk = CF_IF_CLK_166M,
- .quirk = CF_BROKEN_UDMA,
- .dma_priv = &cf_dma_priv,
-};
-
-/* ssp device registration */
-static struct pl022_ssp_controller ssp1_plat_data = {
- .enable_dma = 0,
-};
-
-/* Add SPEAr1310 auxdata to pass platform data */
-static struct of_dev_auxdata spear1310_auxdata_lookup[] __initdata = {
- OF_DEV_AUXDATA("arasan,cf-spear1340", MCIF_CF_BASE, NULL, &cf_pdata),
- OF_DEV_AUXDATA("snps,dma-spear1340", DMAC0_BASE, NULL, &dmac_plat_data),
- OF_DEV_AUXDATA("snps,dma-spear1340", DMAC1_BASE, NULL, &dmac_plat_data),
- OF_DEV_AUXDATA("arm,pl022", SSP_BASE, NULL, &pl022_plat_data),
-
- OF_DEV_AUXDATA("arm,pl022", SPEAR1310_SSP1_BASE, NULL, &ssp1_plat_data),
- {}
-};
-
static void __init spear1310_dt_init(void)
{
- of_platform_populate(NULL, of_default_bus_match_table,
- spear1310_auxdata_lookup, NULL);
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static const char * const spear1310_dt_board_compat[] = {
diff --git a/arch/arm/mach-spear/spear1340.c b/arch/arm/mach-spear/spear1340.c
index 75e3864..a04a7fe 100644
--- a/arch/arm/mach-spear/spear1340.c
+++ b/arch/arm/mach-spear/spear1340.c
@@ -16,18 +16,16 @@
#include <linux/ahci_platform.h>
#include <linux/amba/serial.h>
#include <linux/delay.h>
-#include <linux/dw_dmac.h>
#include <linux/of_platform.h>
#include <linux/irqchip.h>
#include <asm/mach/arch.h>
#include "generic.h"
#include <mach/spear.h>
-#include "spear13xx-dma.h"
+/* FIXME: Move SATA PHY code into a standalone driver */
/* Base addresses */
#define SPEAR1340_SATA_BASE UL(0xB1000000)
-#define SPEAR1340_UART1_BASE UL(0xB4100000)
/* Power Management Registers */
#define SPEAR1340_PCM_CFG (VA_MISC_BASE + 0x100)
@@ -79,28 +77,6 @@
(SPEAR1340_MIPHY_OSC_BYPASS_EXT | \
SPEAR1340_MIPHY_PLL_RATIO_TOP(25))
-static struct dw_dma_slave uart1_dma_param[] = {
- {
- /* Tx */
- .cfg_hi = DWC_CFGH_DST_PER(SPEAR1340_DMA_REQ_UART1_TX),
- .cfg_lo = 0,
- .src_master = DMA_MASTER_MEMORY,
- .dst_master = SPEAR1340_DMA_MASTER_UART1,
- }, {
- /* Rx */
- .cfg_hi = DWC_CFGH_SRC_PER(SPEAR1340_DMA_REQ_UART1_RX),
- .cfg_lo = 0,
- .src_master = SPEAR1340_DMA_MASTER_UART1,
- .dst_master = DMA_MASTER_MEMORY,
- }
-};
-
-static struct amba_pl011_data uart1_data = {
- .dma_filter = dw_dma_filter,
- .dma_tx_param = &uart1_dma_param[0],
- .dma_rx_param = &uart1_dma_param[1],
-};
-
/* SATA device registration */
static int sata_miphy_init(struct device *dev, void __iomem *addr)
{
@@ -159,14 +135,8 @@ static struct ahci_platform_data sata_pdata = {
/* Add SPEAr1340 auxdata to pass platform data */
static struct of_dev_auxdata spear1340_auxdata_lookup[] __initdata = {
- OF_DEV_AUXDATA("arasan,cf-spear1340", MCIF_CF_BASE, NULL, &cf_dma_priv),
- OF_DEV_AUXDATA("snps,dma-spear1340", DMAC0_BASE, NULL, &dmac_plat_data),
- OF_DEV_AUXDATA("snps,dma-spear1340", DMAC1_BASE, NULL, &dmac_plat_data),
- OF_DEV_AUXDATA("arm,pl022", SSP_BASE, NULL, &pl022_plat_data),
-
OF_DEV_AUXDATA("snps,spear-ahci", SPEAR1340_SATA_BASE, NULL,
&sata_pdata),
- OF_DEV_AUXDATA("arm,pl011", SPEAR1340_UART1_BASE, NULL, &uart1_data),
{}
};
diff --git a/arch/arm/mach-spear/spear13xx-dma.h b/arch/arm/mach-spear/spear13xx-dma.h
deleted file mode 100644
index d50bdb6..0000000
--- a/arch/arm/mach-spear/spear13xx-dma.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * arch/arm/mach-spear13xx/include/mach/dma.h
- *
- * DMA information for SPEAr13xx machine family
- *
- * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.linux@gmail.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#ifndef __MACH_DMA_H
-#define __MACH_DMA_H
-
-/* request id of all the peripherals */
-enum dma_master_info {
- /* Accessible from only one master */
- DMA_MASTER_MCIF = 0,
- DMA_MASTER_FSMC = 1,
- /* Accessible from both 0 & 1 */
- DMA_MASTER_MEMORY = 0,
- DMA_MASTER_ADC = 0,
- DMA_MASTER_UART0 = 0,
- DMA_MASTER_SSP0 = 0,
- DMA_MASTER_I2C0 = 0,
-
-#ifdef CONFIG_MACH_SPEAR1310
- /* Accessible from only one master */
- SPEAR1310_DMA_MASTER_JPEG = 1,
-
- /* Accessible from both 0 & 1 */
- SPEAR1310_DMA_MASTER_I2S = 0,
- SPEAR1310_DMA_MASTER_UART1 = 0,
- SPEAR1310_DMA_MASTER_UART2 = 0,
- SPEAR1310_DMA_MASTER_UART3 = 0,
- SPEAR1310_DMA_MASTER_UART4 = 0,
- SPEAR1310_DMA_MASTER_UART5 = 0,
- SPEAR1310_DMA_MASTER_I2C1 = 0,
- SPEAR1310_DMA_MASTER_I2C2 = 0,
- SPEAR1310_DMA_MASTER_I2C3 = 0,
- SPEAR1310_DMA_MASTER_I2C4 = 0,
- SPEAR1310_DMA_MASTER_I2C5 = 0,
- SPEAR1310_DMA_MASTER_I2C6 = 0,
- SPEAR1310_DMA_MASTER_I2C7 = 0,
- SPEAR1310_DMA_MASTER_SSP1 = 0,
-#endif
-
-#ifdef CONFIG_MACH_SPEAR1340
- /* Accessible from only one master */
- SPEAR1340_DMA_MASTER_I2S_PLAY = 1,
- SPEAR1340_DMA_MASTER_I2S_REC = 1,
- SPEAR1340_DMA_MASTER_I2C1 = 1,
- SPEAR1340_DMA_MASTER_UART1 = 1,
-
- /* following are accessible from both master 0 & 1 */
- SPEAR1340_DMA_MASTER_SPDIF = 0,
- SPEAR1340_DMA_MASTER_CAM = 1,
- SPEAR1340_DMA_MASTER_VIDEO_IN = 0,
- SPEAR1340_DMA_MASTER_MALI = 0,
-#endif
-};
-
-enum request_id {
- DMA_REQ_ADC = 0,
- DMA_REQ_SSP0_TX = 4,
- DMA_REQ_SSP0_RX = 5,
- DMA_REQ_UART0_TX = 6,
- DMA_REQ_UART0_RX = 7,
- DMA_REQ_I2C0_TX = 8,
- DMA_REQ_I2C0_RX = 9,
-
-#ifdef CONFIG_MACH_SPEAR1310
- SPEAR1310_DMA_REQ_FROM_JPEG = 2,
- SPEAR1310_DMA_REQ_TO_JPEG = 3,
- SPEAR1310_DMA_REQ_I2S_TX = 10,
- SPEAR1310_DMA_REQ_I2S_RX = 11,
-
- SPEAR1310_DMA_REQ_I2C1_RX = 0,
- SPEAR1310_DMA_REQ_I2C1_TX = 1,
- SPEAR1310_DMA_REQ_I2C2_RX = 2,
- SPEAR1310_DMA_REQ_I2C2_TX = 3,
- SPEAR1310_DMA_REQ_I2C3_RX = 4,
- SPEAR1310_DMA_REQ_I2C3_TX = 5,
- SPEAR1310_DMA_REQ_I2C4_RX = 6,
- SPEAR1310_DMA_REQ_I2C4_TX = 7,
- SPEAR1310_DMA_REQ_I2C5_RX = 8,
- SPEAR1310_DMA_REQ_I2C5_TX = 9,
- SPEAR1310_DMA_REQ_I2C6_RX = 10,
- SPEAR1310_DMA_REQ_I2C6_TX = 11,
- SPEAR1310_DMA_REQ_UART1_RX = 12,
- SPEAR1310_DMA_REQ_UART1_TX = 13,
- SPEAR1310_DMA_REQ_UART2_RX = 14,
- SPEAR1310_DMA_REQ_UART2_TX = 15,
- SPEAR1310_DMA_REQ_UART5_RX = 16,
- SPEAR1310_DMA_REQ_UART5_TX = 17,
- SPEAR1310_DMA_REQ_SSP1_RX = 18,
- SPEAR1310_DMA_REQ_SSP1_TX = 19,
- SPEAR1310_DMA_REQ_I2C7_RX = 20,
- SPEAR1310_DMA_REQ_I2C7_TX = 21,
- SPEAR1310_DMA_REQ_UART3_RX = 28,
- SPEAR1310_DMA_REQ_UART3_TX = 29,
- SPEAR1310_DMA_REQ_UART4_RX = 30,
- SPEAR1310_DMA_REQ_UART4_TX = 31,
-#endif
-
-#ifdef CONFIG_MACH_SPEAR1340
- SPEAR1340_DMA_REQ_SPDIF_TX = 2,
- SPEAR1340_DMA_REQ_SPDIF_RX = 3,
- SPEAR1340_DMA_REQ_I2S_TX = 10,
- SPEAR1340_DMA_REQ_I2S_RX = 11,
- SPEAR1340_DMA_REQ_UART1_TX = 12,
- SPEAR1340_DMA_REQ_UART1_RX = 13,
- SPEAR1340_DMA_REQ_I2C1_TX = 14,
- SPEAR1340_DMA_REQ_I2C1_RX = 15,
- SPEAR1340_DMA_REQ_CAM0_EVEN = 0,
- SPEAR1340_DMA_REQ_CAM0_ODD = 1,
- SPEAR1340_DMA_REQ_CAM1_EVEN = 2,
- SPEAR1340_DMA_REQ_CAM1_ODD = 3,
- SPEAR1340_DMA_REQ_CAM2_EVEN = 4,
- SPEAR1340_DMA_REQ_CAM2_ODD = 5,
- SPEAR1340_DMA_REQ_CAM3_EVEN = 6,
- SPEAR1340_DMA_REQ_CAM3_ODD = 7,
-#endif
-};
-
-#endif /* __MACH_DMA_H */
diff --git a/arch/arm/mach-spear/spear13xx.c b/arch/arm/mach-spear/spear13xx.c
index 1b97e86..3975916 100644
--- a/arch/arm/mach-spear/spear13xx.c
+++ b/arch/arm/mach-spear/spear13xx.c
@@ -15,7 +15,6 @@
#include <linux/amba/pl022.h>
#include <linux/clk.h>
-#include <linux/dw_dmac.h>
#include <linux/err.h>
#include <linux/of.h>
#include <asm/hardware/cache-l2x0.h>
@@ -24,63 +23,6 @@
#include "generic.h"
#include <mach/spear.h>
-#include "spear13xx-dma.h"
-
-/* common dw_dma filter routine to be used by peripherals */
-bool dw_dma_filter(struct dma_chan *chan, void *slave)
-{
- struct dw_dma_slave *dws = (struct dw_dma_slave *)slave;
-
- if (chan->device->dev == dws->dma_dev) {
- chan->private = slave;
- return true;
- } else {
- return false;
- }
-}
-
-/* ssp device registration */
-static struct dw_dma_slave ssp_dma_param[] = {
- {
- /* Tx */
- .cfg_hi = DWC_CFGH_DST_PER(DMA_REQ_SSP0_TX),
- .cfg_lo = 0,
- .src_master = DMA_MASTER_MEMORY,
- .dst_master = DMA_MASTER_SSP0,
- }, {
- /* Rx */
- .cfg_hi = DWC_CFGH_SRC_PER(DMA_REQ_SSP0_RX),
- .cfg_lo = 0,
- .src_master = DMA_MASTER_SSP0,
- .dst_master = DMA_MASTER_MEMORY,
- }
-};
-
-struct pl022_ssp_controller pl022_plat_data = {
- .enable_dma = 1,
- .dma_filter = dw_dma_filter,
- .dma_rx_param = &ssp_dma_param[1],
- .dma_tx_param = &ssp_dma_param[0],
-};
-
-/* CF device registration */
-struct dw_dma_slave cf_dma_priv = {
- .cfg_hi = 0,
- .cfg_lo = 0,
- .src_master = 0,
- .dst_master = 0,
-};
-
-/* dmac device registeration */
-struct dw_dma_platform_data dmac_plat_data = {
- .nr_channels = 8,
- .chan_allocation_order = CHAN_ALLOCATION_DESCENDING,
- .chan_priority = CHAN_PRIORITY_DESCENDING,
- .block_size = 4095U,
- .nr_masters = 2,
- .data_width = { 3, 3, 0, 0 },
-};
-
void __init spear13xx_l2x0_init(void)
{
/*
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