[ARM] DNS323: Initialise 88F5182 correctly

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>

1 files changed, 61 insertions, 4 deletions

diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c
index 4053bd354766..0722d6510df1 100644
--- a/arch/arm/mach-orion5x/dns323-setup.c
+++ b/arch/arm/mach-orion5x/dns323-setup.c
@@ -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)