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Armada100: Add SPI support for Marvell gplugD

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This patch add SPI driver support for Marvell gplugD

Signed-off-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
This commit is contained in:
Ajay Bhargav 2011-10-03 14:00:57 +05:30 committed by Albert ARIBAUD
parent 51100cfcca
commit daa4b2f7f5
4 changed files with 42 additions and 0 deletions
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19
arch/arm/include/asm/arch-armada100/armada100.h
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@ -45,6 +45,10 @@
#define FE_CLK_RST 0x1
#define FE_CLK_ENA 0x8
/* SSP2 Clock Control */
#define SSP2_APBCLK 0x01
#define SSP2_FNCLK 0x02
/* Register Base Addresses */
#define ARMD1_DRAM_BASE 0xB0000000
#define ARMD1_FEC_BASE 0xC0800000
@ -175,5 +179,20 @@ struct armd1apb1_registers {
u32 ac97; /*0x084*/
};
/*
* APB2 Clock Reset/Control Registers
* Refer Datasheet Appendix A.11
*/
struct armd1apb2_registers {
u32 pad1[0x01C - 0x000];
u32 ssp1_clkrst; /* 0x01C */
u32 ssp2_clkrst; /* 0x020 */
u32 pad2[0x04C - 0x020 - 4];
u32 ssp3_clkrst; /* 0x04C */
u32 pad3[0x058 - 0x04C - 4];
u32 ssp4_clkrst; /* 0x058 */
u32 ssp5_clkrst; /* 0x05C */
};
#endif /* CONFIG_ARMADA100 */
#endif /* _ASM_ARCH_ARMADA100_H */

6
arch/arm/include/asm/arch-armada100/mfp.h
View File

@ -83,6 +83,12 @@
#define MFP101_ETH_MDIO (MFP_REG(0x194) | MFP_AF5 | MFP_DRIVE_MEDIUM)
#define MFP103_ETH_RXDV (MFP_REG(0x19C) | MFP_AF5 | MFP_DRIVE_MEDIUM)
/* SPI */
#define MFP107_SSP2_RXD (MFP_REG(0x1AC) | MFP_AF4 | MFP_DRIVE_MEDIUM)
#define MFP108_SSP2_TXD (MFP_REG(0x1B0) | MFP_AF4 | MFP_DRIVE_MEDIUM)
#define MFP110_SSP2_CS (MFP_REG(0x1B8) | MFP_AF0 | MFP_DRIVE_MEDIUM)
#define MFP111_SSP2_CLK (MFP_REG(0x1BC) | MFP_AF4 | MFP_DRIVE_MEDIUM)
/* More macros can be defined here... */
#define MFP_PIN_MAX 117

12
board/Marvell/gplugd/gplugd.c
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@ -72,6 +72,12 @@ int board_early_init_f(void)
MFP101_ETH_MDIO,
MFP103_ETH_RXDV,
/* SSP2 */
MFP107_SSP2_RXD,
MFP108_SSP2_TXD,
MFP110_SSP2_CS,
MFP111_SSP2_CLK,
MFP_EOC /*End of configuration*/
};
/* configure MFP's */
@ -81,6 +87,9 @@ int board_early_init_f(void)
int board_init(void)
{
struct armd1apb2_registers *apb2_regs =
(struct armd1apb2_registers *)ARMD1_APBC2_BASE;
/* arch number of Board */
gd->bd->bi_arch_number = MACH_TYPE_SHEEVAD;
/* adress of boot parameters */
@ -90,6 +99,9 @@ int board_init(void)
udelay(10);
/* Deassert PHY_RST# */
gpio_set_value(CONFIG_SYS_GPIO_PHY_RST, GPIO_HIGH);
/* Enable SSP2 clock */
writel(SSP2_APBCLK | SSP2_FNCLK, &apb2_regs->ssp2_clkrst);
return 0;
}

5
include/configs/gplugd.h
View File

@ -90,6 +90,11 @@
/* GPIO Configuration for PHY */
#define CONFIG_SYS_GPIO_PHY_RST 104 /* GPIO104 */
/* SPI Support */
#define CONFIG_ARMADA100_SPI
#define CONFIG_ENV_SPI_CS 110
#define CONFIG_SYS_SSP_PORT 2
/*
* mv-common.h should be defined after CMD configs since it used them
* to enable certain macros