[PATCH V4 1/2] AHCI Add the AHCI SATA feature on MX53 platforms
Richard Zhu
Hong-Xing.Zhu at freescale.com
Tue Apr 12 01:51:11 EDT 2011
Signed-off-by: Richard Zhu <Hong-Xing.Zhu at freescale.com>
---
arch/arm/mach-mx5/clock-mx51-mx53.c | 11 +++++
arch/arm/mach-mx5/devices-imx53.h | 4 ++
arch/arm/plat-mxc/Makefile | 1 +
arch/arm/plat-mxc/ahci_sata.c | 43 ++++++++++++++++++
arch/arm/plat-mxc/devices/Kconfig | 4 ++
arch/arm/plat-mxc/devices/Makefile | 1 +
arch/arm/plat-mxc/devices/platform-ahci-imx.c | 55 +++++++++++++++++++++++
arch/arm/plat-mxc/include/mach/ahci_sata.h | 54 ++++++++++++++++++++++
arch/arm/plat-mxc/include/mach/devices-common.h | 10 ++++
9 files changed, 183 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/plat-mxc/ahci_sata.c
create mode 100644 arch/arm/plat-mxc/devices/platform-ahci-imx.c
create mode 100644 arch/arm/plat-mxc/include/mach/ahci_sata.h
diff --git a/arch/arm/mach-mx5/clock-mx51-mx53.c b/arch/arm/mach-mx5/clock-mx51-mx53.c
index 652ace4..8bf2bab 100644
--- a/arch/arm/mach-mx5/clock-mx51-mx53.c
+++ b/arch/arm/mach-mx5/clock-mx51-mx53.c
@@ -1380,6 +1380,14 @@ static struct clk esdhc4_mx53_clk = {
.secondary = &esdhc4_ipg_clk,
};
+static struct clk sata_clk = {
+ .parent = &ipg_clk,
+ .enable = _clk_max_enable,
+ .enable_reg = MXC_CCM_CCGR4,
+ .enable_shift = MXC_CCM_CCGRx_CG1_OFFSET,
+ .disable = _clk_max_disable,
+};
+
DEFINE_CLOCK(mipi_esc_clk, 0, MXC_CCM_CCGR4, MXC_CCM_CCGRx_CG5_OFFSET, NULL, NULL, NULL, &pll2_sw_clk);
DEFINE_CLOCK(mipi_hsc2_clk, 0, MXC_CCM_CCGR4, MXC_CCM_CCGRx_CG4_OFFSET, NULL, NULL, &mipi_esc_clk, &pll2_sw_clk);
DEFINE_CLOCK(mipi_hsc1_clk, 0, MXC_CCM_CCGR4, MXC_CCM_CCGRx_CG3_OFFSET, NULL, NULL, &mipi_hsc2_clk, &pll2_sw_clk);
@@ -1468,6 +1476,9 @@ static struct clk_lookup mx53_lookups[] = {
_REGISTER_CLOCK("imx53-cspi.0", NULL, cspi_clk)
_REGISTER_CLOCK("imx2-wdt.0", NULL, dummy_clk)
_REGISTER_CLOCK("imx2-wdt.1", NULL, dummy_clk)
+ _REGISTER_CLOCK("ahci.0", NULL, sata_clk)
+ _REGISTER_CLOCK(NULL, "usb_phy1", usb_phy1_clk)
+ _REGISTER_CLOCK(NULL, "ahb", ahb_clk)
};
static void clk_tree_init(void)
diff --git a/arch/arm/mach-mx5/devices-imx53.h b/arch/arm/mach-mx5/devices-imx53.h
index 9251008..390b469 100644
--- a/arch/arm/mach-mx5/devices-imx53.h
+++ b/arch/arm/mach-mx5/devices-imx53.h
@@ -33,3 +33,7 @@ extern const struct imx_spi_imx_data imx53_ecspi_data[] __initconst;
extern const struct imx_imx2_wdt_data imx53_imx2_wdt_data[] __initconst;
#define imx53_add_imx2_wdt(id, pdata) \
imx_add_imx2_wdt(&imx53_imx2_wdt_data[id])
+
+extern const struct imx_ahci_data imx53_ahci_data __initconst;
+#define imx53_add_ahci(id, pdata) \
+ imx_add_ahci(&imx53_ahci_data, pdata)
diff --git a/arch/arm/plat-mxc/Makefile b/arch/arm/plat-mxc/Makefile
index a138787..a9386bc 100644
--- a/arch/arm/plat-mxc/Makefile
+++ b/arch/arm/plat-mxc/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_ARCH_MXC_AUDMUX_V1) += audmux-v1.o
obj-$(CONFIG_ARCH_MXC_AUDMUX_V2) += audmux-v2.o
obj-$(CONFIG_MXC_DEBUG_BOARD) += 3ds_debugboard.o
obj-$(CONFIG_CPU_FREQ_IMX) += cpufreq.o
+obj-$(CONFIG_IMX_HAVE_PLATFORM_AHCI) += ahci_sata.o
ifdef CONFIG_SND_IMX_SOC
obj-y += ssi-fiq.o
obj-y += ssi-fiq-ksym.o
diff --git a/arch/arm/plat-mxc/ahci_sata.c b/arch/arm/plat-mxc/ahci_sata.c
new file mode 100644
index 0000000..1455eaf
--- /dev/null
+++ b/arch/arm/plat-mxc/ahci_sata.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <mach/ahci_sata.h>
+
+/* AHCI module Initialization, if return 0, initialization is successful. */
+int sata_init(void __iomem *addr, unsigned long timer1ms)
+{
+ u32 tmpdata;
+
+ tmpdata = readl(addr + HOST_CAP);
+ if (!(tmpdata & HOST_CAP_SSS)) {
+ tmpdata |= HOST_CAP_SSS;
+ writel(tmpdata, addr + HOST_CAP);
+ }
+
+ if (!(readl(addr + HOST_PORTS_IMPL) & 0x1))
+ writel((readl(addr + HOST_PORTS_IMPL) | 0x1),
+ addr + HOST_PORTS_IMPL);
+
+ writel(timer1ms, addr + HOST_TIMER1MS);
+
+ return 0;
+}
diff --git a/arch/arm/plat-mxc/devices/Kconfig b/arch/arm/plat-mxc/devices/Kconfig
index b9ab1d5..bbeab2d 100644
--- a/arch/arm/plat-mxc/devices/Kconfig
+++ b/arch/arm/plat-mxc/devices/Kconfig
@@ -71,3 +71,7 @@ config IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX
config IMX_HAVE_PLATFORM_SPI_IMX
bool
+
+config IMX_HAVE_PLATFORM_AHCI
+ bool
+ default y if ARCH_MX53
diff --git a/arch/arm/plat-mxc/devices/Makefile b/arch/arm/plat-mxc/devices/Makefile
index 75cd2ec..a4dcfcd 100644
--- a/arch/arm/plat-mxc/devices/Makefile
+++ b/arch/arm/plat-mxc/devices/Makefile
@@ -22,3 +22,4 @@ obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_RNGA) += platform-mxc_rnga.o
obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_W1) += platform-mxc_w1.o
obj-$(CONFIG_IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX) += platform-sdhci-esdhc-imx.o
obj-$(CONFIG_IMX_HAVE_PLATFORM_SPI_IMX) += platform-spi_imx.o
+obj-$(CONFIG_IMX_HAVE_PLATFORM_AHCI) += platform-ahci-imx.o
diff --git a/arch/arm/plat-mxc/devices/platform-ahci-imx.c b/arch/arm/plat-mxc/devices/platform-ahci-imx.c
new file mode 100644
index 0000000..65a76ce
--- /dev/null
+++ b/arch/arm/plat-mxc/devices/platform-ahci-imx.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <asm/sizes.h>
+#include <mach/hardware.h>
+#include <mach/devices-common.h>
+
+#define imx_ahci_data_entry_single(soc) \
+ { \
+ .iobase = soc ## _SATA_BASE_ADDR, \
+ .irq = soc ## _INT_SATA, \
+ }
+
+#ifdef CONFIG_SOC_IMX53
+const struct imx_ahci_data imx53_ahci_data __initconst =
+ imx_ahci_data_entry_single(MX53);
+#endif
+
+struct platform_device *__init imx_add_ahci(
+ const struct imx_ahci_data *data,
+ const struct ahci_platform_data *pdata)
+{
+ struct resource res[] = {
+ {
+ .start = data->iobase,
+ .end = data->iobase + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = data->irq,
+ .end = data->irq,
+ .flags = IORESOURCE_IRQ,
+ },
+ };
+
+ return imx_add_platform_device_dmamask("ahci", 0,
+ res, ARRAY_SIZE(res),
+ pdata, sizeof(*pdata), DMA_BIT_MASK(32));
+}
diff --git a/arch/arm/plat-mxc/include/mach/ahci_sata.h b/arch/arm/plat-mxc/include/mach/ahci_sata.h
new file mode 100644
index 0000000..dbaaf74
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/ahci_sata.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef __PLAT_MXC_AHCI_SATA_H__
+#define __PLAT_MXC_AHCI_SATA_H__
+
+enum {
+ HOST_CAP = 0x00,
+ HOST_CAP_SSS = (1 << 27), /* Staggered Spin-up */
+ HOST_PORTS_IMPL = 0x0c,
+ HOST_TIMER1MS = 0xe0, /* Timer 1-ms */
+ /* Offest used to control the MPLL input clk */
+ PHY_CR_CLOCK_FREQ_OVRD = 0x12,
+ /* Port0 SATA Status */
+ PORT_SATA_SR = 0x128,
+ /* Port0 PHY Control */
+ PORT_PHY_CTL = 0x178,
+ /* PORT_PHY_CTL bits */
+ PORT_PHY_CTL_CAP_ADR_LOC = 0x10000,
+ PORT_PHY_CTL_CAP_DAT_LOC = 0x20000,
+ PORT_PHY_CTL_WRITE_LOC = 0x40000,
+ PORT_PHY_CTL_READ_LOC = 0x80000,
+ /* Port0 PHY Status */
+ PORT_PHY_SR = 0x17c,
+ /* PORT_PHY_SR */
+ PORT_PHY_STAT_DATA_LOC = 0,
+ PORT_PHY_STAT_ACK_LOC = 18,
+ /* SATA PHY Register */
+ SATA_PHY_CR_CLOCK_CRCMP_LT_LIMIT = 0x0001,
+ SATA_PHY_CR_CLOCK_DAC_CTL = 0x0008,
+ SATA_PHY_CR_CLOCK_RTUNE_CTL = 0x0009,
+ SATA_PHY_CR_CLOCK_ADC_OUT = 0x000A,
+ SATA_PHY_CR_CLOCK_MPLL_TST = 0x0017,
+};
+
+extern int sata_init(void __iomem *addr, unsigned long timer1ms);
+#endif /* __PLAT_MXC_AHCI_SATA_H__ */
diff --git a/arch/arm/plat-mxc/include/mach/devices-common.h b/arch/arm/plat-mxc/include/mach/devices-common.h
index 8658c9c..b85469d 100644
--- a/arch/arm/plat-mxc/include/mach/devices-common.h
+++ b/arch/arm/plat-mxc/include/mach/devices-common.h
@@ -264,3 +264,13 @@ struct imx_spi_imx_data {
struct platform_device *__init imx_add_spi_imx(
const struct imx_spi_imx_data *data,
const struct spi_imx_master *pdata);
+
+#include <linux/ahci_platform.h>
+struct imx_ahci_data {
+ int id;
+ resource_size_t iobase;
+ resource_size_t irq;
+};
+struct platform_device *__init imx_add_ahci(
+ const struct imx_ahci_data *data,
+ const struct ahci_platform_data *pdata);
--
1.7.1
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