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[ARM] DNS323: Initialise 88F5182 correctly

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The 88F5182 found in the DNS-323 rev B1 (and some other devices, such
as the CH3SNAS) require different initialisation of the SATA
controller and MPP registers.

Tested on a DNS-323 rev B1.

Signed-off-by: Matt Palmer <mpalmer@hezmatt.org>
This commit is contained in:
Matt Palmer 2008-10-22 10:16:36 +02:00 committed by Nicolas Pitre
parent a93f44c175
commit f93e4159b1
1 changed files with 61 additions and 4 deletions
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65
arch/arm/mach-orion5x/dns323-setup.c
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@ -21,6 +21,7 @@
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/i2c.h>
#include <linux/ata_platform.h>
#include <asm/mach-types.h>
#include <asm/gpio.h>
#include <asm/mach/arch.h>
@ -64,9 +65,21 @@ static struct hw_pci dns323_pci __initdata = {
.map_irq = dns323_pci_map_irq,
};
static int __init dns323_dev_id(void)
{
u32 dev, rev;
orion5x_pcie_id(&dev, &rev);
return dev;
}
static int __init dns323_pci_init(void)
{
if (machine_is_dns323())
/* The 5182 doesn't really use it's PCI bus, and initialising PCI
* gets in the way of initialising the SATA controller.
*/
if (machine_is_dns323() && dns323_dev_id() != MV88F5182_DEV_ID)
pci_common_init(&dns323_pci);
return 0;
@ -283,10 +296,17 @@ static struct platform_device dns323_button_device = {
},
};
/*****************************************************************************
* SATA
*/
static struct mv_sata_platform_data dns323_sata_data = {
.n_ports = 2,
};
/****************************************************************************
* General Setup
*/
static struct orion5x_mpp_mode dns323_mpp_modes[] __initdata = {
static struct orion5x_mpp_mode dns323_mv88f5181_mpp_modes[] __initdata = {
{ 0, MPP_PCIE_RST_OUTn },
{ 1, MPP_GPIO }, /* right amber LED (sata ch0) */
{ 2, MPP_GPIO }, /* left amber LED (sata ch1) */
@ -310,6 +330,30 @@ static struct orion5x_mpp_mode dns323_mpp_modes[] __initdata = {
{ -1 },
};
static struct orion5x_mpp_mode dns323_mv88f5182_mpp_modes[] __initdata = {
{ 0, MPP_UNUSED },
{ 1, MPP_GPIO }, /* right amber LED (sata ch0) */
{ 2, MPP_GPIO }, /* left amber LED (sata ch1) */
{ 3, MPP_UNUSED },
{ 4, MPP_GPIO }, /* power button LED */
{ 5, MPP_GPIO }, /* power button LED */
{ 6, MPP_GPIO }, /* GMT G751-2f overtemp */
{ 7, MPP_GPIO }, /* M41T80 nIRQ/OUT/SQW */
{ 8, MPP_GPIO }, /* triggers power off */
{ 9, MPP_GPIO }, /* power button switch */
{ 10, MPP_GPIO }, /* reset button switch */
{ 11, MPP_UNUSED },
{ 12, MPP_SATA_LED },
{ 13, MPP_SATA_LED },
{ 14, MPP_SATA_LED },
{ 15, MPP_SATA_LED },
{ 16, MPP_UNUSED },
{ 17, MPP_UNUSED },
{ 18, MPP_UNUSED },
{ 19, MPP_UNUSED },
{ -1 },
};
/*
* On the DNS-323 the following devices are attached via I2C:
*
@ -340,8 +384,15 @@ static void __init dns323_init(void)
/* Setup basic Orion functions. Need to be called early. */
orion5x_init();
orion5x_mpp_conf(dns323_mpp_modes);
writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */
/* Just to be tricky, the 5182 has a completely different
* set of MPP modes to the 5181.
*/
if (dns323_dev_id() == MV88F5182_DEV_ID)
orion5x_mpp_conf(dns323_mv88f5182_mpp_modes);
else {
orion5x_mpp_conf(dns323_mv88f5181_mpp_modes);
writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */
}
/* setup flash mapping
* CS3 holds a 8 MB Spansion S29GL064M90TFIR4
@ -367,6 +418,12 @@ static void __init dns323_init(void)
orion5x_i2c_init();
orion5x_uart0_init();
/* The 5182 has it's SATA controller on-chip, and needs it's own little
* init routine.
*/
if (dns323_dev_id() == MV88F5182_DEV_ID)
orion5x_sata_init(&dns323_sata_data);
/* register dns323 specific power-off method */
if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)