[U-Boot] [PATCH V2] i.MX6: add enable_sata_clock()
Eric Nelson
eric.nelson at boundarydevices.com
Tue Mar 27 21:52:21 CEST 2012
Signed-off-by: Eric Nelson <eric.nelson at boundarydevices.com>
---
This patch requires Stefano's driver for MX5/MX6 to be useful.
http://lists.denx.de/pipermail/u-boot/2012-February/118530.html
This is the first and board-independent part of what's needed to enable
SATA on an i.MX6 board as discussed in this thread:
http://lists.denx.de/pipermail/u-boot/2012-March/120919.html
V2 updated to return -EIO instead of -1.
arch/arm/cpu/armv7/mx6/clock.c | 31 ++++++++
arch/arm/include/asm/arch-mx6/clock.h | 1 +
arch/arm/include/asm/arch-mx6/imx-regs.h | 9 +++
arch/arm/include/asm/arch-mx6/iomux-v3.h | 111 ++++++++++++++++++++++++++++++
4 files changed, 152 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index ef98563..de91cac 100644
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/arch/arm/cpu/armv7/mx6/clock.c
@@ -303,6 +303,37 @@ u32 imx_get_fecclk(void)
return decode_pll(PLL_ENET, CONFIG_SYS_MX6_HCLK);
}
+int enable_sata_clock(void)
+{
+ u32 reg = 0;
+ s32 timeout = 100000;
+ struct imx_ccm_reg *const imx_ccm
+ = (struct imx_ccm_reg *) CCM_BASE_ADDR;
+
+ /* Enable sata clock */
+ reg = readl(&imx_ccm->CCGR5); /* CCGR5 */
+ reg |= MXC_CCM_CCGR5_CG2_MASK;
+ writel(reg, &imx_ccm->CCGR5);
+
+ /* Enable PLLs */
+ reg = readl(&imx_ccm->analog_pll_enet);
+ reg &= ~BM_ANADIG_PLL_SYS_POWERDOWN;
+ writel(reg, &imx_ccm->analog_pll_enet);
+ reg |= BM_ANADIG_PLL_SYS_ENABLE;
+ while (timeout--) {
+ if (readl(&imx_ccm->analog_pll_enet) & BM_ANADIG_PLL_SYS_LOCK)
+ break;
+ }
+ if (timeout <= 0)
+ return -EIO;
+ reg &= ~BM_ANADIG_PLL_SYS_BYPASS;
+ writel(reg, &imx_ccm->analog_pll_enet);
+ reg |= BM_ANADIG_PLL_ENET_ENABLE_SATA;
+ writel(reg, &imx_ccm->analog_pll_enet);
+
+ return 0 ;
+}
+
unsigned int mxc_get_clock(enum mxc_clock clk)
{
switch (clk) {
diff --git a/arch/arm/include/asm/arch-mx6/clock.h b/arch/arm/include/asm/arch-mx6/clock.h
index 613809b..b91d8bf 100644
--- a/arch/arm/include/asm/arch-mx6/clock.h
+++ b/arch/arm/include/asm/arch-mx6/clock.h
@@ -47,5 +47,6 @@ u32 imx_get_uartclk(void);
u32 imx_get_fecclk(void);
unsigned int mxc_get_clock(enum mxc_clock clk);
void enable_usboh3_clk(unsigned char enable);
+int enable_sata_clock(void);
#endif /* __ASM_ARCH_CLOCK_H */
diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h
index 1033d05..f72e753 100644
--- a/arch/arm/include/asm/arch-mx6/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx6/imx-regs.h
@@ -438,5 +438,14 @@ struct anatop_regs {
u32 digprog; /* 0x260 */
};
+struct iomuxc_base_regs {
+ u32 gpr[14]; /* 0x000 */
+ u32 obsrv[5]; /* 0x038 */
+ u32 swmux_ctl[197]; /* 0x04c */
+ u32 swpad_ctl[250]; /* 0x360 */
+ u32 swgrp[26]; /* 0x748 */
+ u32 daisy[104]; /* 0x7b0..94c */
+};
+
#endif /* __ASSEMBLER__*/
#endif /* __ASM_ARCH_MX6_IMX_REGS_H__ */
diff --git a/arch/arm/include/asm/arch-mx6/iomux-v3.h b/arch/arm/include/asm/arch-mx6/iomux-v3.h
index 4558f4f..788b413 100644
--- a/arch/arm/include/asm/arch-mx6/iomux-v3.h
+++ b/arch/arm/include/asm/arch-mx6/iomux-v3.h
@@ -100,4 +100,115 @@ typedef u64 iomux_v3_cfg_t;
int imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad);
int imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t *pad_list, unsigned count);
+/*
+ * IOMUXC_GPR13 bit fields
+ */
+#define IOMUXC_GPR13_SDMA_STOP_REQ (1<<30)
+#define IOMUXC_GPR13_CAN2_STOP_REQ (1<<29)
+#define IOMUXC_GPR13_CAN1_STOP_REQ (1<<28)
+#define IOMUXC_GPR13_ENET_STOP_REQ (1<<27)
+#define IOMUXC_GPR13_SATA_PHY_8_MASK (7<<24)
+#define IOMUXC_GPR13_SATA_PHY_7_MASK (0x1f<<19)
+#define IOMUXC_GPR13_SATA_PHY_6_SHIFT 16
+#define IOMUXC_GPR13_SATA_PHY_6_MASK (7<<IOMUXC_GPR13_SATA_PHY_6_SHIFT)
+#define IOMUXC_GPR13_SATA_SPEED_MASK (1<<15)
+#define IOMUXC_GPR13_SATA_PHY_5_MASK (1<<14)
+#define IOMUXC_GPR13_SATA_PHY_4_MASK (7<<11)
+#define IOMUXC_GPR13_SATA_PHY_3_MASK (0x1f<<7)
+#define IOMUXC_GPR13_SATA_PHY_2_MASK (0x1f<<2)
+#define IOMUXC_GPR13_SATA_PHY_1_MASK (3<<0)
+
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_0P5DB (0b000<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_1P0DB (0b001<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_1P5DB (0b010<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_2P0DB (0b011<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_2P5DB (0b100<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_3P0DB (0b101<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_3P5DB (0b110<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_4P0DB (0b111<<24)
+
+#define IOMUXC_GPR13_SATA_PHY_7_SATA1I (0b10000<<19)
+#define IOMUXC_GPR13_SATA_PHY_7_SATA1M (0b10000<<19)
+#define IOMUXC_GPR13_SATA_PHY_7_SATA1X (0b11010<<19)
+#define IOMUXC_GPR13_SATA_PHY_7_SATA2I (0b10010<<19)
+#define IOMUXC_GPR13_SATA_PHY_7_SATA2M (0b10010<<19)
+#define IOMUXC_GPR13_SATA_PHY_7_SATA2X (0b11010<<19)
+
+#define IOMUXC_GPR13_SATA_SPEED_1P5G (0<<15)
+#define IOMUXC_GPR13_SATA_SPEED_3G (1<<15)
+
+#define IOMUXC_GPR13_SATA_SATA_PHY_5_SS_DISABLED (0<<14)
+#define IOMUXC_GPR13_SATA_SATA_PHY_5_SS_ENABLED (1<<14)
+
+#define IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_16_16 (0<<11)
+#define IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_14_16 (1<<11)
+#define IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_12_16 (2<<11)
+#define IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_10_16 (3<<11)
+#define IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_9_16 (4<<11)
+#define IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_8_16 (5<<11)
+
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P00_DB (0b0000<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P37_DB (0b0001<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P74_DB (0b0010<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_1P11_DB (0b0011<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_1P48_DB (0b0100<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_1P85_DB (0b0101<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_2P22_DB (0b0110<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_2P59_DB (0b0111<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_2P96_DB (0b1000<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_3P33_DB (0b1001<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_3P70_DB (0b1010<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_4P07_DB (0b1011<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_4P44_DB (0b1100<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_4P81_DB (0b1101<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_5P28_DB (0b1110<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_5P75_DB (0b1111<<7)
+
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P937V (0b00000<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P947V (0b00001<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P957V (0b00010<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P966V (0b00011<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P976V (0b00100<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P986V (0b00101<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P996V (0b00110<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P005V (0b00111<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P015V (0b01000<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P025V (0b01001<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P035V (0b01010<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P045V (0b01011<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P054V (0b01100<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P064V (0b01101<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P074V (0b01110<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P084V (0b01111<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P094V (0b10000<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P104V (0b10001<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P113V (0b10010<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P123V (0b10011<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P133V (0b10100<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P143V (0b10101<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P152V (0b10110<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P162V (0b10111<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P172V (0b11000<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P182V (0b11001<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P191V (0b11010<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P201V (0b11011<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P211V (0b11100<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P221V (0b11101<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P230V (0b11110<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P240V (0b11111<<2)
+
+#define IOMUXC_GPR13_SATA_PHY_1_FAST 0
+#define IOMUXC_GPR13_SATA_PHY_1_MEDIUM 1
+#define IOMUXC_GPR13_SATA_PHY_1_SLOW 2
+
+#define IOMUXC_GPR13_SATA_MASK (IOMUXC_GPR13_SATA_PHY_8_MASK \
+ |IOMUXC_GPR13_SATA_PHY_7_MASK \
+ |IOMUXC_GPR13_SATA_PHY_6_MASK \
+ |IOMUXC_GPR13_SATA_SPEED_MASK \
+ |IOMUXC_GPR13_SATA_PHY_5_MASK \
+ |IOMUXC_GPR13_SATA_PHY_4_MASK \
+ |IOMUXC_GPR13_SATA_PHY_3_MASK \
+ |IOMUXC_GPR13_SATA_PHY_2_MASK \
+ |IOMUXC_GPR13_SATA_PHY_1_MASK)
+
#endif /* __MACH_IOMUX_V3_H__*/
--
1.7.9
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