[U-Boot] [PATCH v2] exynos5250/arndale: Enable SATA/AHCI support.
Simon Glass
sjg at chromium.org
Mon Dec 8 23:24:07 CET 2014
Hi Ian,
On 8 December 2014 at 07:54, Ian Campbell <ian.campbell at citrix.com> wrote:
> This is based on some old patches from the chromeos-v2011.12 branch of
> http://git.chromium.org/chromiumos/third_party/u-boot.git by Taylor Hutt.
> Specifically:
>
> http://git.chromium.org/gitweb/?p=chromiumos/third_party/u-boot.git;a=commit;h=26f6c570b5deb37c52306920ae049203c68f014a
> exynos: sata: on-board controller initialization
> Signed-off-by: Taylor Hutt <thutt at chromium.org>
>
> http://git.chromium.org/gitweb/?p=chromiumos/third_party/u-boot.git;a=commit;h=d8cac5cf0b63df00d2d6ac7df814613e4b60b9d1
> exynos: sata: Add sata_initialize() interface
> Signed-off-by: Taylor Hutt <thutt at chromium.org>
>
> http://git.chromium.org/gitweb/?p=chromiumos/third_party/u-boot.git;a=commit;h=dd32462453d6328bc5770859d1b56501f7920d7d
> exynos: sata: SATA self-configuration for when SATA device is enabled
> Signed-off-by: Taylor Hutt <thutt at chromium.org>
Thanks for cleaning this up and submitting it.
>
> As well as rebasing there have been some significant changes.
>
> - Drop support for smdk5250, which I don't own.
> - Implement support for arndale, which I do.
> - Since arndale has no need to frob a GPIO on SATA init drop the associated
> code.
> - Initialise via the existing scsi_init hook rather than introducing
> sata_initialize, associated build system and include/configs/*.h changes.
> - Use set/clrbits in a bunch of places
> - Add some #defines for some magic numbers.
> - Use samsung_get_base_* for peripheral base addresses and structs to
> access individual registers
> - Lots of coding style improvements (checkpatch.pl clean) and general cleanup
>
> Before launching the OS reset the PHY, otherwise Linux cannot reliably
> detect the disk.
>
> Signed-off-by: Ian Campbell <ian.campbell at citrix.com>
> Cc: Taylor Hutt <thutt at chromium.org>
> Cc: Simon Glass <sjg at chromium.org>
> ---
> Lots of changes in v2:
> - Rebase to latest master branch.
> - use samsung_get_base_* for sata phy
> - use samsung_get_base_* for sata i2c
> - use samsung_get_base_* for sata axi
> - Lots of Coding Style improvements
> - Drop unused mmio argument to phy init
> - Move code controlling phy power to power.c
> - Remove unused SCLK_SATA_FREQ
> - Use #defines for SATA_GENERATION<N>, less fickle than enum
> - avoid non-existent BIT macro
> - Use bool more consistently in a few places
> - No uppercase variable names
> - Use SPDX License + copyright
> - Use arch_preboot_os to reset SATA controller, and do so more
> thoroughly than in the previous HACK. It now appears to be reliable
> in my testing.
> ---
> arch/arm/cpu/armv7/exynos/Makefile | 4 +
> arch/arm/cpu/armv7/exynos/power.c | 23 ++
> arch/arm/cpu/armv7/exynos/sata.c | 412 +++++++++++++++++++++++++++++++
> arch/arm/cpu/armv7/exynos/soc.c | 8 +
> arch/arm/include/asm/arch-exynos/cpu.h | 15 ++
> arch/arm/include/asm/arch-exynos/power.h | 4 +
> arch/arm/include/asm/arch-exynos/sata.h | 13 +
> arch/arm/lib/board.c | 1 +
> board/samsung/arndale/arndale.c | 9 +
> include/configs/arndale.h | 3 +
> include/configs/exynos5-common.h | 18 ++
> 11 files changed, 510 insertions(+)
> create mode 100644 arch/arm/cpu/armv7/exynos/sata.c
> create mode 100644 arch/arm/include/asm/arch-exynos/sata.h
>
> diff --git a/arch/arm/cpu/armv7/exynos/Makefile b/arch/arm/cpu/armv7/exynos/Makefile
> index e207bd6..c74a2d4 100644
> --- a/arch/arm/cpu/armv7/exynos/Makefile
> +++ b/arch/arm/cpu/armv7/exynos/Makefile
> @@ -7,6 +7,10 @@
>
> obj-y += clock.o power.o soc.o system.o pinmux.o tzpc.o
>
> +ifndef CONFIG_SPL_BUILD
> +obj-$(CONFIG_EXYNOS5250_AHCI) += sata.o
> +endif
> +
> ifdef CONFIG_SPL_BUILD
> obj-$(CONFIG_EXYNOS5) += clock_init_exynos5.o
> obj-$(CONFIG_EXYNOS5) += dmc_common.o dmc_init_ddr3.o
> diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c
> index 1520d64..8f36d10 100644
> --- a/arch/arm/cpu/armv7/exynos/power.c
> +++ b/arch/arm/cpu/armv7/exynos/power.c
> @@ -37,6 +37,29 @@ void set_mipi_phy_ctrl(unsigned int dev_index, unsigned int enable)
> exynos4_mipi_phy_control(dev_index, enable);
> }
>
> +void exynos5_set_sata_phy_ctrl(unsigned int enable)
> +{
> + struct exynos5_power *power =
> + (struct exynos5_power *)samsung_get_base_power();
> +
> + if (enable) {
> + /* Enabling SATA_PHY */
> + setbits_le32(&power->sata_phy_control,
> + POWER_USB_HOST_PHY_CTRL_EN);
> + } else {
> + /* Disabling SATA_PHY */
> + clrbits_le32(&power->sata_phy_control,
> + POWER_USB_HOST_PHY_CTRL_EN);
> + }
> +}
> +
> +void set_sata_phy_ctrl(unsigned int enable)
> +{
> + if (cpu_is_exynos5())
> + exynos5_set_sata_phy_ctrl(enable);
> +}
> +
> +
> void exynos5_set_usbhost_phy_ctrl(unsigned int enable)
> {
> struct exynos5_power *power =
> diff --git a/arch/arm/cpu/armv7/exynos/sata.c b/arch/arm/cpu/armv7/exynos/sata.c
> new file mode 100644
> index 0000000..4e994d6
> --- /dev/null
> +++ b/arch/arm/cpu/armv7/exynos/sata.c
> @@ -0,0 +1,412 @@
> +/*
> + * Copyright (c) 2012 The Chromium OS Authors.
> + * Copyright (c) 2014 Ian Campbell
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +#include <asm/types.h>
> +#include <ahci.h>
> +#include <common.h>
> +#include <fdtdec.h>
> +#include <scsi.h>
> +#include <asm/arch/sata.h>
> +#include <asm/arch/pinmux.h>
> +#include <asm/arch/clock.h>
> +#include <asm/arch/clk.h>
> +#include <asm/arch/power.h>
> +#include <asm/errno.h>
> +#include <asm/gpio.h>
> +#include <linux/compiler.h>
> +
> +#define SATA_TIME_LIMIT 10000
> +#define SATA_PHY_I2C_SLAVE_ADDRS 0x70
> +
> +/********************** PHY **************/
> +
> +struct sata_phy {
> + unsigned int res1; /* 0x00 */
> + unsigned int reset; /* 0x04 */
> +#define RESET_GLOBAL_RST_N (1 << 0)
> +#define RESET_CMN_RST_N (1 << 1)
> +#define RESET_CMN_BLOCK_RST_N (1 << 2)
> +#define RESET_CMN_I2C_RST_N (1 << 3)
> +#define RESET_TX_RX_PIPE_RST_N (1 << 4)
> +#define RESET_TX_RX_BLOCK_RST_N (1 << 5)
> +#define RESET_TX_RX_I2C_RST_N ((1 << 6) | (1 << 7))
> +#define LINK_RESET 0xF0000
> + unsigned int res2; /* 0x08 */
> + unsigned int res3; /* 0x0c */
> + unsigned int mode0; /* 0x10 */
> + unsigned int ctrl0; /* 0x14 */
> +#define CTRL0_P0_PHY_CALIBRATED_SEL (1 << 9)
> +#define CTRL0_P0_PHY_CALIBRATED (1 << 8)
> + unsigned int res4[0x32]; /* 0x18..0xdc */
> + unsigned int ctrlm; /* 0xE0 */
> +#define PHCTRLM_REF_RATE (1 << 1)
> +#define PHCTRLM_HIGH_SPEED (1 << 0)
> + unsigned int res5[0x03]; /* 0xE4..0xEF*/
> + unsigned int statm; /* 0xF0 */
> +#define PHSTATM_PLL_LOCKED (1 << 0)
> +};
> +
> +/********************** I2C **************/
> +
> +struct sata_i2c {
> + unsigned int con; /* 0x00 */
> + unsigned int stat; /* 0x04 */
> + unsigned int addr; /* 0x08 */
> + unsigned int ds; /* 0x0c */
> + unsigned int lc; /* 0x10 */
> +};
Can this be structured as an I2C device using driver model? It doesn't
make sense to add new I2C drivers outside driver model.
> +
> +/* I2CCON reg */
> +#define CON_ACKEN (1 << 7)
> +#define CON_CLK512 (1 << 6)
> +#define CON_CLK16 (~CON_CLK512)
> +#define CON_INTEN (1 << 5)
> +#define CON_INTPND (1 << 4)
> +#define CON_TXCLK_PS (0xF)
> +
> +/* I2CSTAT reg */
> +#define STAT_MSTT (0x3 << 6)
> +#define STAT_BSYST (1 << 5)
> +#define STAT_RTEN (1 << 4)
> +#define STAT_LAST (1 << 0)
> +
> +#define LC_FLTR_EN (1 << 2)
> +
> +#define SATA_PHY_CON_RESET 0xF003F
> +
> +#define SATA_GENERATION1 (0)
> +#define SATA_GENERATION2 (1 << 0)
> +#define SATA_GENERATION3 (1 << 1)
> +
> +static bool sata_is_reg(void __iomem *reg, u32 checkbit, u32 status)
> +{
> + if ((__raw_readl(reg) & checkbit) == status)
> + return true;
> + else
> + return false;
> +}
> +
> +static bool wait_for_reg_status(void __iomem *reg, u32 checkbit, u32 status)
> +{
> + u32 time_limit_cnt = 0;
> +
> + while (!sata_is_reg(reg, checkbit, status)) {
> + if (time_limit_cnt == SATA_TIME_LIMIT)
> + return false;
> + udelay(1000);
> + time_limit_cnt++;
> + }
> + return true;
> +}
> +
> +static void sata_set_gen(u8 gen)
> +{
> + struct sata_phy *phy =
> + (struct sata_phy *)samsung_get_base_sata_phy();
Should pass the base address into these functions.
Also it can come from the device tree now.
> +
> + clrsetbits_le32(&phy->mode0, 0x3, gen);
> +}
> +
> +/* Address :I2C Address */
> +static void sata_i2c_write_addrs(u8 data)
> +{
> + struct sata_i2c *i2c =
> + (struct sata_i2c *)samsung_get_base_sata_i2c();
> +
> + __raw_writeb((data & 0xFE), &i2c->ds);
> +}
> +
> +static void sata_i2c_write_data(u8 data)
> +{
> + struct sata_i2c *i2c =
> + (struct sata_i2c *)samsung_get_base_sata_i2c();
> +
> + __raw_writeb((data), &i2c->ds);
> +}
> +
> +static void sata_i2c_start(void)
> +{
> + struct sata_i2c *i2c =
> + (struct sata_i2c *)samsung_get_base_sata_i2c();
> +
> + setbits_le32(&i2c->stat, STAT_BSYST);
> +}
> +
> +static void sata_i2c_stop(void)
> +{
> + struct sata_i2c *i2c =
> + (struct sata_i2c *)samsung_get_base_sata_i2c();
> +
> + clrbits_le32(&i2c->stat, STAT_BSYST);
> +}
> +
> +static bool sata_i2c_get_int_status(void)
> +{
> + struct sata_i2c *i2c =
> + (struct sata_i2c *)samsung_get_base_sata_i2c();
> +
> + if ((__raw_readl(&i2c->con)) & CON_INTPND)
> + return true;
> + else
> + return false;
> +}
> +
> +static bool sata_i2c_is_tx_ack(void)
> +{
> + struct sata_i2c *i2c =
> + (struct sata_i2c *)samsung_get_base_sata_i2c();
> +
> + if ((__raw_readl(&i2c->con)) & STAT_LAST)
> + return false;
> + else
> + return true;
> +}
> +
> +static bool sata_i2c_is_bus_ready(void)
> +{
> + struct sata_i2c *i2c =
> + (struct sata_i2c *)samsung_get_base_sata_i2c();
> +
> + if ((__raw_readl(&i2c->stat)) & STAT_BSYST)
> + return false;
> + else
> + return true;
> +}
> +
> +static bool sata_i2c_wait_for_busready(u32 time_out)
> +{
> + while (--time_out) {
> + if (sata_i2c_is_bus_ready())
> + return true;
> + udelay(100);
> + }
> + return false;
> +}
> +
> +static bool sata_i2c_wait_for_tx_ack(u32 time_out)
> +{
> + while (--time_out) {
> + if (sata_i2c_get_int_status()) {
> + if (sata_i2c_is_tx_ack())
> + return true;
> + }
> + udelay(100);
> + }
> + return false;
> +}
> +
> +static void sata_i2c_clear_int_status(void)
> +{
> + struct sata_i2c *i2c =
> + (struct sata_i2c *)samsung_get_base_sata_i2c();
> +
> + clrbits_le32(&i2c->con, CON_INTPND);
> +}
> +
> +static void sata_i2c_set_ack_gen(bool enable)
> +{
> + struct sata_i2c *i2c =
> + (struct sata_i2c *)samsung_get_base_sata_i2c();
> +
> + if (enable)
> + setbits_le32(&i2c->con, CON_ACKEN);
> + else
> + clrbits_le32(&i2c->con, CON_ACKEN);
> +}
> +
> +static void sata_i2c_set_master_tx(void)
> +{
> + struct sata_i2c *i2c =
> + (struct sata_i2c *)samsung_get_base_sata_i2c();
> +
> + /* Disable I2C */
> + clrbits_le32(&i2c->stat, STAT_RTEN);
> +
> + /* Clear Mode */
> + clrbits_le32(&i2c->stat, STAT_MSTT);
> +
> + sata_i2c_clear_int_status();
> +
> + /* interrupt disable */
> + clrbits_le32(&i2c->con, CON_INTEN);
> +
> + /* Master, Send mode */
> + setbits_le32(&i2c->stat, STAT_MSTT);
> +
> + /* interrupt enable */
> + setbits_le32(&i2c->con, CON_INTEN);
> +
> + /* Enable I2C */
> + setbits_le32(&i2c->stat, STAT_RTEN);
> +}
> +
> +static void sata_i2c_init(void)
> +{
> + struct sata_i2c *i2c =
> + (struct sata_i2c *)samsung_get_base_sata_i2c();
> +
> + clrbits_le32(&i2c->con, ~CON_CLK16);
> + clrbits_le32(&i2c->con, CON_TXCLK_PS);
> + setbits_le32(&i2c->con, 2 & CON_TXCLK_PS);
> + clrbits_le32(&i2c->lc, LC_FLTR_EN);
> +
> + sata_i2c_set_ack_gen(false);
> +}
> +
> +static bool sata_i2c_send(u8 slave_addrs, u8 addrs, u8 data)
Probably better to return an error code here rather than try/false. See errno.h.
> +{
> + struct sata_phy *phy =
> + (struct sata_phy *)samsung_get_base_sata_phy();
> + bool ret = false;
> +
> + if (!sata_i2c_wait_for_busready(SATA_TIME_LIMIT))
> + return false;
> +
> + sata_i2c_init();
> + sata_i2c_set_master_tx();
> +
> + __raw_writel(SATA_PHY_CON_RESET, &phy->reset);
> + sata_i2c_write_addrs(slave_addrs);
> + sata_i2c_start();
> +
> + if (!sata_i2c_wait_for_tx_ack(SATA_TIME_LIMIT))
> + goto stop;
> +
> + sata_i2c_write_data(addrs);
> + sata_i2c_clear_int_status();
> +
> + if (!sata_i2c_wait_for_tx_ack(SATA_TIME_LIMIT))
> + goto stop;
> +
> + sata_i2c_write_data(data);
> + sata_i2c_clear_int_status();
> +
> + if (!sata_i2c_wait_for_tx_ack(SATA_TIME_LIMIT))
> + goto stop;
> +
> + ret = true;
> +
> +stop:
> + sata_i2c_stop();
> + sata_i2c_clear_int_status();
> + sata_i2c_wait_for_busready(SATA_TIME_LIMIT);
Error check here?
> +
> + return ret;
> +}
> +
> +static bool ahci_phy_init(void)
> +{
> + return sata_i2c_send(SATA_PHY_I2C_SLAVE_ADDRS, 0x3a, 0x0b);
> +}
> +
> +static int exynos5_ahci_init(void)
> +{
> + struct sata_phy *phy =
> + (struct sata_phy *)samsung_get_base_sata_phy();
> + int ret;
> +
> + if (sata_is_reg(&phy->ctrl0,
> + CTRL0_P0_PHY_CALIBRATED, CTRL0_P0_PHY_CALIBRATED)) {
> + printf("%s: already calibrated?\n", __func__);
> + }
> +
> + /* Clear phy control enable. Seems to be necessary to
> + * reinitialise on a warm reboot, at least sometimes. */
> + set_sata_phy_ctrl(0);
> + udelay(1000);
> +
> + set_sata_phy_ctrl(1);
> +
> + __raw_writel(0, &phy->reset);
> + setbits_le32(&phy->reset,
> + RESET_GLOBAL_RST_N|
> + RESET_CMN_BLOCK_RST_N|RESET_CMN_I2C_RST_N|
> + RESET_TX_RX_PIPE_RST_N|RESET_TX_RX_BLOCK_RST_N);
> +
> + setbits_le32(&phy->reset, LINK_RESET);
> +
> + setbits_le32(&phy->reset, RESET_CMN_RST_N);
> +
> + clrbits_le32(&phy->ctrlm, PHCTRLM_REF_RATE);
> +
> + /* High speed enable for Gen3 */
> + setbits_le32(&phy->ctrlm, PHCTRLM_HIGH_SPEED);
> +
> + setbits_le32(&phy->ctrl0,
> + CTRL0_P0_PHY_CALIBRATED_SEL|CTRL0_P0_PHY_CALIBRATED);
> +
> + sata_set_gen(SATA_GENERATION3);
> +
> + ret = ahci_phy_init();
Return if there is an error?
> +
> + /* release cmu reset */
> + clrbits_le32(&phy->reset, RESET_CMN_RST_N);
> +
> + setbits_le32(&phy->reset, RESET_CMN_RST_N);
> +
> + if (wait_for_reg_status(&phy->statm,
> + PHSTATM_PLL_LOCKED, 1))
> + return ret;
> +
> + return 0;
> +}
> +
> +static void exynos5_enable_clock_gates(void)
> +{
> + struct exynos5_clock *clk =
> + (struct exynos5_clock *)samsung_get_base_clock();
> +
> + /* Turn on all SATA clock gates & DMA gates. */
> + const unsigned sata_clocks = (1 << 25) | (1 << 24) | (1 << 6);
> + const unsigned dma_clocks = (2 << 1) | (1 << 1);
> +
> + setbits_le32(&clk->gate_ip_fsys, sata_clocks|dma_clocks);
> +}
> +
> +int exynos5_sata_init(void)
> +{
> + BUILD_BUG_ON(offsetof(struct sata_phy, reset) != 0x04);
> + BUILD_BUG_ON(offsetof(struct sata_phy, mode0) != 0x10);
> + BUILD_BUG_ON(offsetof(struct sata_phy, ctrl0) != 0x14);
> + BUILD_BUG_ON(offsetof(struct sata_phy, ctrlm) != 0xe0);
> + BUILD_BUG_ON(offsetof(struct sata_phy, statm) != 0xf0);
> +
> + BUILD_BUG_ON(offsetof(struct sata_i2c, con) != 0x00);
> + BUILD_BUG_ON(offsetof(struct sata_i2c, stat) != 0x04);
> + BUILD_BUG_ON(offsetof(struct sata_i2c, addr) != 0x08);
> + BUILD_BUG_ON(offsetof(struct sata_i2c, ds) != 0x0c);
> + BUILD_BUG_ON(offsetof(struct sata_i2c, lc) != 0x10);
> +
> + exynos5_enable_clock_gates();
> +
> + if (exynos5_ahci_init()) {
Non-zero return from this function should mean error.
> + ahci_init(samsung_get_base_sata_axi());
> + return 0;
> + }
> + return -ENODEV;
> +}
> +
> +int exynos5_sata_deinit(void)
> +{
> + struct sata_phy *phy =
> + (struct sata_phy *)samsung_get_base_sata_phy();
> +
> + sata_set_gen(SATA_GENERATION1);
> +
> + clrbits_le32(&phy->ctrl0,
> + CTRL0_P0_PHY_CALIBRATED_SEL|CTRL0_P0_PHY_CALIBRATED);
> +
> + /* Disable High speed enable for Gen3 */
> + clrbits_le32(&phy->ctrlm, PHCTRLM_HIGH_SPEED);
> +
> + setbits_le32(&phy->ctrlm, PHCTRLM_REF_RATE);
> +
> + __raw_writel(0, &phy->reset);
> +
> + set_sata_phy_ctrl(0);
> +
> + return 0;
> +}
> diff --git a/arch/arm/cpu/armv7/exynos/soc.c b/arch/arm/cpu/armv7/exynos/soc.c
> index 8c7d7d8..1cd8b7b 100644
> --- a/arch/arm/cpu/armv7/exynos/soc.c
> +++ b/arch/arm/cpu/armv7/exynos/soc.c
> @@ -8,6 +8,7 @@
> #include <common.h>
> #include <asm/io.h>
> #include <asm/system.h>
> +#include <asm/arch/sata.h>
>
> enum l2_cache_params {
> CACHE_TAG_RAM_SETUP = (1 << 9),
> @@ -29,6 +30,13 @@ void enable_caches(void)
> }
> #endif
>
> +void arch_preboot_os(void)
> +{
> +#if defined(CONFIG_SCSI_AHCI)
> + exynos5_sata_deinit();
> +#endif
> +}
> +
> #ifndef CONFIG_SYS_L2CACHE_OFF
> /*
> * Set L2 cache parameters
> diff --git a/arch/arm/include/asm/arch-exynos/cpu.h b/arch/arm/include/asm/arch-exynos/cpu.h
> index 29674ad..7d53995 100644
> --- a/arch/arm/include/asm/arch-exynos/cpu.h
> +++ b/arch/arm/include/asm/arch-exynos/cpu.h
> @@ -56,6 +56,9 @@
> #define EXYNOS4_USB_HOST_XHCI_BASE DEVICE_NOT_AVAILABLE
> #define EXYNOS4_USB3PHY_BASE DEVICE_NOT_AVAILABLE
> #define EXYNOS4_DMC_TZASC_BASE DEVICE_NOT_AVAILABLE
> +#define EXYNOS4_SATA_PHY_BASE DEVICE_NOT_AVAILABLE
> +#define EXYNOS4_SATA_I2C_BASE DEVICE_NOT_AVAILABLE
> +#define EXYNOS4_SATA_AXI_BASE DEVICE_NOT_AVAILABLE
Please we don't need these constants anymore.
>
> /* EXYNOS4X12 */
> #define EXYNOS4X12_GPIO_PART3_BASE 0x03860000
> @@ -102,6 +105,9 @@
> #define EXYNOS4X12_USB_HOST_XHCI_BASE DEVICE_NOT_AVAILABLE
> #define EXYNOS4X12_USB3PHY_BASE DEVICE_NOT_AVAILABLE
> #define EXYNOS4X12_DMC_TZASC_BASE DEVICE_NOT_AVAILABLE
> +#define EXYNOS4X12_SATA_PHY_BASE DEVICE_NOT_AVAILABLE
> +#define EXYNOS4X12_SATA_I2C_BASE DEVICE_NOT_AVAILABLE
> +#define EXYNOS4X12_SATA_AXI_BASE DEVICE_NOT_AVAILABLE
>
> /* EXYNOS5 */
> #define EXYNOS5_I2C_SPACING 0x10000
> @@ -130,8 +136,11 @@
> #define EXYNOS5_USB_HOST_EHCI_BASE 0x12110000
> #define EXYNOS5_USBPHY_BASE 0x12130000
> #define EXYNOS5_USBOTG_BASE 0x12140000
> +#define EXYNOS5_SATA_PHY_BASE 0x12170000
> +#define EXYNOS5_SATA_I2C_BASE 0x121d0000
> #define EXYNOS5_MMC_BASE 0x12200000
> #define EXYNOS5_SROMC_BASE 0x12250000
> +#define EXYNOS5_SATA_AXI_BASE 0x122f0000
> #define EXYNOS5_UART_BASE 0x12C00000
> #define EXYNOS5_I2C_BASE 0x12C60000
> #define EXYNOS5_SPI_BASE 0x12D20000
> @@ -185,6 +194,9 @@
> #define EXYNOS5420_MODEM_BASE DEVICE_NOT_AVAILABLE
> #define EXYNOS5420_USB3PHY_BASE DEVICE_NOT_AVAILABLE
> #define EXYNOS5420_USB_HOST_XHCI_BASE DEVICE_NOT_AVAILABLE
> +#define EXYNOS5420_SATA_PHY_BASE DEVICE_NOT_AVAILABLE
> +#define EXYNOS5420_SATA_I2C_BASE DEVICE_NOT_AVAILABLE
> +#define EXYNOS5420_SATA_AXI_BASE DEVICE_NOT_AVAILABLE
>
> #ifndef __ASSEMBLY__
> #include <asm/io.h>
> @@ -314,6 +326,9 @@ SAMSUNG_BASE(dmc_ctrl, DMC_CTRL_BASE)
> SAMSUNG_BASE(dmc_phy, DMC_PHY_BASE)
> SAMSUNG_BASE(dmc_tzasc, DMC_TZASC_BASE)
> SAMSUNG_BASE(audio_ass, AUDIOSS_BASE)
> +SAMSUNG_BASE(sata_phy, SATA_PHY_BASE)
> +SAMSUNG_BASE(sata_i2c, SATA_I2C_BASE)
> +SAMSUNG_BASE(sata_axi, SATA_AXI_BASE)
> #endif
>
> #endif /* _EXYNOS4_CPU_H */
> diff --git a/arch/arm/include/asm/arch-exynos/power.h b/arch/arm/include/asm/arch-exynos/power.h
> index 3f97b31..da023ea 100644
> --- a/arch/arm/include/asm/arch-exynos/power.h
> +++ b/arch/arm/include/asm/arch-exynos/power.h
> @@ -1704,6 +1704,10 @@ void set_mipi_phy_ctrl(unsigned int dev_index, unsigned int enable);
> #define EXYNOS_MIPI_PHY_SRESETN (1 << 1)
> #define EXYNOS_MIPI_PHY_MRESETN (1 << 2)
>
> +void set_sata_phy_ctrl(unsigned int enable);
Function docs?
> +
> +#define EXYNOS_SATA_PHY_CONTROL_EN (1 << 0)
> +
> void set_usbhost_phy_ctrl(unsigned int enable);
>
> /* Enables hardware tripping to power off the system when TMU fails */
> diff --git a/arch/arm/include/asm/arch-exynos/sata.h b/arch/arm/include/asm/arch-exynos/sata.h
> new file mode 100644
> index 0000000..94c7736
> --- /dev/null
> +++ b/arch/arm/include/asm/arch-exynos/sata.h
> @@ -0,0 +1,13 @@
> +/*
> + * Copyright (c) 2012 The Chromium OS Authors.
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +#ifndef __EXYNOS5_SATA_H
> +#define __EXYNOS5_SATA_H
> +
> +int exynos5_sata_init(void);
> +int exynos5_sata_deinit(void);
> +
> +#endif
> +
> diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c
> index f606255..0de0c76 100644
> --- a/arch/arm/lib/board.c
> +++ b/arch/arm/lib/board.c
> @@ -35,6 +35,7 @@
> #include <mmc.h>
> #include <scsi.h>
> #include <status_led.h>
> +#include <sata.h>
> #include <libfdt.h>
> #include <fdtdec.h>
> #include <post.h>
> diff --git a/board/samsung/arndale/arndale.c b/board/samsung/arndale/arndale.c
> index 881d080..43f4058 100644
> --- a/board/samsung/arndale/arndale.c
> +++ b/board/samsung/arndale/arndale.c
> @@ -10,6 +10,7 @@
> #include <asm/arch/pinmux.h>
> #include <asm/arch/dwmmc.h>
> #include <asm/arch/power.h>
> +#include <asm/arch/sata.h>
>
> DECLARE_GLOBAL_DATA_PTR;
>
> @@ -31,6 +32,14 @@ int board_usb_init(int index, enum usb_init_type init)
> }
> #endif
>
> +#ifdef CONFIG_SCSI_AHCI
> +int scsi_init(void)
> +{
> + printf("ARNDALE SCSI INIT\n");
> + return exynos5_sata_init();
This could go in standard Samsung board.c, there does not seem to be
anything arndale-specific.
> +}
> +#endif
> +
> int board_init(void)
> {
> gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
> diff --git a/include/configs/arndale.h b/include/configs/arndale.h
> index 81e8a7c..85e9295 100644
> --- a/include/configs/arndale.h
> +++ b/include/configs/arndale.h
> @@ -12,6 +12,9 @@
> #define EXYNOS_FDTFILE_SETTING \
> "fdtfile=exynos5250-arndale.dtb\0"
>
> +/* AHCI */
> +#define CONFIG_EXYNOS5250_AHCI
> +
> #include "exynos5250-common.h"
>
> /* SD/MMC configuration */
> diff --git a/include/configs/exynos5-common.h b/include/configs/exynos5-common.h
> index e1f5783..3000c97 100644
> --- a/include/configs/exynos5-common.h
> +++ b/include/configs/exynos5-common.h
> @@ -163,6 +163,18 @@
> #define CONFIG_ENV_SROM_BANK 1
> #endif /*CONFIG_CMD_NET*/
>
> +/* SATA controller driver */
> +#ifdef CONFIG_EXYNOS5250_AHCI
> +#define CONFIG_CMD_SCSI
> +#define CONFIG_SYS_SCSI_MAX_SCSI_ID 1
> +#define CONFIG_SYS_SCSI_MAX_LUN 1
> +#define CONFIG_SYS_SCSI_MAX_DEVICE (CONFIG_SYS_SCSI_MAX_SCSI_ID * \
> + CONFIG_SYS_SCSI_MAX_LUN)
> +#define CONFIG_LIBATA
> +#define CONFIG_SCSI_AHCI
> +#define CONFIG_SCSI_AHCI_PLAT
> +#endif
> +
> /* SHA hashing */
> #define CONFIG_CMD_HASH
> #define CONFIG_HASH_VERIFY
> @@ -184,10 +196,16 @@
> #define CONFIG_FIT
> #define CONFIG_FIT_BEST_MATCH
>
> +#ifdef CONFIG_EXYNOS5250_AHCI
> +#define BOOT_TARGET_DEVICES_SCSI(func) func(SCSI, scsi, 0)
> +#else
> +#define BOOT_TARGET_DEVICES_SCSI(func)
> +#endif
>
> #define BOOT_TARGET_DEVICES(func) \
> func(MMC, mmc, 1) \
> func(MMC, mmc, 0) \
> + BOOT_TARGET_DEVICES_SCSI(func) \
Great!
> func(PXE, pxe, na) \
> func(DHCP, dhcp, na)
>
> --
> 2.1.1
>
Regards,
Simon
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