[PATCH 062/111] GR-RASTA-TMTC,rev1: add GRGPIO[0] register init
Daniel Hellstrom
daniel at gaisler.com
Thu Feb 26 16:39:04 UTC 2015
---
c/src/lib/libbsp/sparc/shared/pci/gr_rasta_tmtc.c | 167 ++++++++++-----------
1 files changed, 77 insertions(+), 90 deletions(-)
diff --git a/c/src/lib/libbsp/sparc/shared/pci/gr_rasta_tmtc.c b/c/src/lib/libbsp/sparc/shared/pci/gr_rasta_tmtc.c
index 47d8061..faefa4d 100644
--- a/c/src/lib/libbsp/sparc/shared/pci/gr_rasta_tmtc.c
+++ b/c/src/lib/libbsp/sparc/shared/pci/gr_rasta_tmtc.c
@@ -244,13 +244,77 @@ void gr_rasta_tmtc_isr (void *arg)
DBG("RASTA-TMTC-IRQ: 0x%x\n", tmp);
}
+/* Init AMBA bus frequency, IRQ controller, GPIO register, bus maps and other
+ * common stuff between rev0 and rev1.
+ */
+int gr_rasta_tmtc_hw_init_common(struct gr_rasta_tmtc_priv *priv)
+{
+ struct ambapp_dev *tmp;
+ unsigned int pci_freq_hz;
+
+ /* Initialize Frequency of AMBA bus. The AMBA bus runs at same
+ * frequency as PCI bus
+ */
+ drvmgr_freq_get(priv->dev, 0, &pci_freq_hz);
+ ambapp_freq_init(&priv->abus, NULL, pci_freq_hz);
+
+ /* Find IRQ controller, Clear all current IRQs */
+ tmp = (void *)ambapp_for_each(&priv->abus,
+ (OPTIONS_ALL|OPTIONS_APB_SLVS),
+ VENDOR_GAISLER, GAISLER_IRQMP,
+ ambapp_find_by_idx, NULL);
+ if ( !tmp ) {
+ return -4;
+ }
+ priv->irq = (struct irqmp_regs *)DEV_TO_APB(tmp)->start;
+ /* Set up GR-RASTA-TMTC irq controller */
+ priv->irq->mask[0] = 0;
+ priv->irq->iclear = 0xffffffff;
+ priv->irq->ilevel = 0;
+
+ /* Find First GPIO controller */
+ tmp = (void *)ambapp_for_each(&priv->abus,
+ (OPTIONS_ALL|OPTIONS_APB_SLVS),
+ VENDOR_GAISLER, GAISLER_GPIO,
+ ambapp_find_by_idx, NULL);
+ if ( !tmp ) {
+ return -5;
+ }
+ priv->gpio = (struct grgpio_regs *) (((struct ambapp_apb_info *)tmp->devinfo)->start);
+ /* Clear GR-RASTA-TMTC GPIO controller */
+ priv->gpio->imask = 0;
+ priv->gpio->ipol = 0;
+ priv->gpio->iedge = 0;
+ priv->gpio->bypass = 0;
+ /* Set up GR-RASTA-TMTC GPIO controller to select GRTM and GRTC */
+ priv->gpio->output = (GR_TMTC_GPIO_GRTM_SEL|GR_TMTC_GPIO_TRANSP_CLK) | (GR_TMTC_GPIO_TC_BIT_LOCK|GR_TMTC_GPIO_TC_RF_AVAIL|GR_TMTC_GPIO_TC_ACTIVE_HIGH|GR_TMTC_GPIO_TC_RISING_CLK);
+ priv->gpio->dir = 0xffffffff;
+ DBG("GR-TMTC GPIO: 0x%x\n", (unsigned int)priv->gpio);
+
+ /* DOWN streams translation table */
+ priv->bus_maps_down[0].name = "PCI BAR0 -> AMBA";
+ priv->bus_maps_down[0].size = priv->amba_maps[0].size;
+ priv->bus_maps_down[0].from_adr = (void *)priv->amba_maps[0].local_adr;
+ priv->bus_maps_down[0].to_adr = (void *)priv->amba_maps[0].remote_adr;
+
+ priv->bus_maps_down[1].name = "PCI BAR1 -> AMBA";
+ priv->bus_maps_down[1].size = priv->amba_maps[1].size;
+ priv->bus_maps_down[1].from_adr = (void *)priv->amba_maps[1].local_adr;
+ priv->bus_maps_down[1].to_adr = (void *)priv->amba_maps[1].remote_adr;
+
+ /* Mark end of translation table */
+ priv->bus_maps_down[2].size = 0;
+
+ return 0;
+}
+
/* PCI Hardware (Revision 0) initialization */
-int gr_rasta_tmtc_hw_init(struct gr_rasta_tmtc_priv *priv)
+int gr_rasta_tmtc0_hw_init(struct gr_rasta_tmtc_priv *priv)
{
unsigned int *page0 = NULL;
struct ambapp_dev *tmp;
struct ambapp_ahb_info *ahb;
- unsigned int pci_freq_hz;
+ int status;
pci_dev_t pcidev = priv->pcidev;
struct pci_dev_info *devinfo = priv->devinfo;
uint32_t bar0, bar0_size;
@@ -313,12 +377,6 @@ int gr_rasta_tmtc_hw_init(struct gr_rasta_tmtc_priv *priv)
bar0 + (priv->version->amba_ioarea & ~0xf0000000),
NULL, &priv->amba_maps[0]);
- /* Frequency is the same as the PCI bus frequency */
- drvmgr_freq_get(priv->dev, 0, &pci_freq_hz);
-
- /* Initialize Frequency of AMBA bus */
- ambapp_freq_init(&priv->abus, NULL, pci_freq_hz);
-
/* Point PAGE0 to start of APB area */
*page0 = AHB1_BASE_ADDR;
@@ -339,55 +397,10 @@ int gr_rasta_tmtc_hw_init(struct gr_rasta_tmtc_priv *priv)
(priv->ahbmst2pci_map & 0xf0000000);
priv->grpci->page1 = 0x40000000;
- /* Find IRQ controller, Clear all current IRQs */
- tmp = (void *)ambapp_for_each(&priv->abus,
- (OPTIONS_ALL|OPTIONS_APB_SLVS),
- VENDOR_GAISLER, GAISLER_IRQMP,
- ambapp_find_by_idx, NULL);
- if ( !tmp ) {
- return -4;
- }
- priv->irq = (struct irqmp_regs *)DEV_TO_APB(tmp)->start;
- /* Set up GR-RASTA-TMTC irq controller */
- priv->irq->mask[0] = 0;
- priv->irq->iclear = 0xffffffff;
- priv->irq->ilevel = 0;
-
- /* Find First GPIO controller */
- tmp = (void *)ambapp_for_each(&priv->abus,
- (OPTIONS_ALL|OPTIONS_APB_SLVS),
- VENDOR_GAISLER, GAISLER_GPIO,
- ambapp_find_by_idx, NULL);
- if ( !tmp ) {
- return -5;
- }
- priv->gpio = (struct grgpio_regs *) (((struct ambapp_apb_info *)tmp->devinfo)->start);
- /* Clear GR-RASTA-TMTC GPIO controller */
- priv->gpio->imask = 0;
- priv->gpio->ipol = 0;
- priv->gpio->iedge = 0;
- priv->gpio->bypass = 0;
- /* Set up GR-RASTA-TMTC GPIO controller to select GRTM and GRTC */
- priv->gpio->output = (GR_TMTC_GPIO_GRTM_SEL|GR_TMTC_GPIO_TRANSP_CLK) | (GR_TMTC_GPIO_TC_BIT_LOCK|GR_TMTC_GPIO_TC_RF_AVAIL|GR_TMTC_GPIO_TC_ACTIVE_HIGH|GR_TMTC_GPIO_TC_RISING_CLK);
- priv->gpio->dir = 0xffffffff;
- DBG("GR-TMTC GPIO: 0x%x\n", (unsigned int)priv->gpio);
-
- /* Enable DMA by enabling PCI target as master */
- pci_master_enable(pcidev);
-
- /* DOWN streams translation table */
- priv->bus_maps_down[0].name = "PCI BAR0 -> AMBA";
- priv->bus_maps_down[0].size = priv->amba_maps[0].size;
- priv->bus_maps_down[0].from_adr = (void *)priv->amba_maps[0].local_adr;
- priv->bus_maps_down[0].to_adr = (void *)priv->amba_maps[0].remote_adr;
-
- priv->bus_maps_down[1].name = "PCI BAR1 -> AMBA";
- priv->bus_maps_down[1].size = priv->amba_maps[1].size;
- priv->bus_maps_down[1].from_adr = (void *)priv->amba_maps[1].local_adr;
- priv->bus_maps_down[1].to_adr = (void *)priv->amba_maps[1].remote_adr;
-
- /* Mark end of translation table */
- priv->bus_maps_down[2].size = 0;
+ /* init AMBA bus, IRQCtrl, GPIO, bus down-maps */
+ status = gr_rasta_tmtc_hw_init_common(priv);
+ if (status)
+ return status;
/* Find GRPCI controller AHB Slave interface */
tmp = (struct ambapp_dev *)ambapp_for_each(&priv->abus,
@@ -426,7 +439,6 @@ int gr_rasta_tmtc1_hw_init(struct gr_rasta_tmtc_priv *priv)
uint8_t cap_ptr;
pci_dev_t pcidev = priv->pcidev;
struct pci_dev_info *devinfo = priv->devinfo;
- unsigned int pci_freq_hz;
/* Check capabilities list bit */
pci_cfg_r8(pcidev, PCI_STATUS, &tmp2);
@@ -489,35 +501,10 @@ int gr_rasta_tmtc1_hw_init(struct gr_rasta_tmtc_priv *priv)
NULL,
&priv->amba_maps[0]);
- /* Initialize Frequency of AMBA bus. The AMBA bus runs at same
- * frequency as PCI bus
- */
- drvmgr_freq_get(priv->dev, 0, &pci_freq_hz);
- ambapp_freq_init(&priv->abus, NULL, pci_freq_hz);
-
- /* Find IRQ controller, Clear all current IRQs */
- tmp = (struct ambapp_dev *)ambapp_for_each(&priv->abus,
- (OPTIONS_ALL|OPTIONS_APB_SLVS),
- VENDOR_GAISLER, GAISLER_IRQMP,
- ambapp_find_by_idx, NULL);
- if ( !tmp ) {
- return -4;
- }
- priv->irq = (struct irqmp_regs *)DEV_TO_APB(tmp)->start;
- /* Set up GR-RASTA-SPW-ROUTER irq controller */
- priv->irq->mask[0] = 0;
- priv->irq->iclear = 0xffff;
- priv->irq->ilevel = 0;
-
- priv->bus_maps_down[0].name = "PCI BAR0 -> AMBA";
- priv->bus_maps_down[0].size = priv->amba_maps[0].size;
- priv->bus_maps_down[0].from_adr = (void *)priv->amba_maps[0].local_adr;
- priv->bus_maps_down[0].to_adr = (void *)priv->amba_maps[0].remote_adr;
- priv->bus_maps_down[1].name = "PCI BAR1 -> AMBA";
- priv->bus_maps_down[1].size = priv->amba_maps[1].size;
- priv->bus_maps_down[1].from_adr = (void *)priv->amba_maps[1].local_adr;
- priv->bus_maps_down[1].to_adr = (void *)priv->amba_maps[1].remote_adr;
- priv->bus_maps_down[2].size = 0;
+ /* init AMBA bus, IRQCtrl, GPIO, bus down-maps */
+ status = gr_rasta_tmtc_hw_init_common(priv);
+ if (status)
+ return status;
/* Find GRPCI2 controller AHB Slave interface */
tmp = (void *)ambapp_for_each(&priv->abus,
@@ -525,7 +512,7 @@ int gr_rasta_tmtc1_hw_init(struct gr_rasta_tmtc_priv *priv)
VENDOR_GAISLER, GAISLER_GRPCI2,
ambapp_find_by_idx, NULL);
if ( !tmp ) {
- return -5;
+ return -6;
}
ahb = (struct ambapp_ahb_info *)tmp->devinfo;
priv->bus_maps_up[0].name = "AMBA GRPCI2 Window";
@@ -541,7 +528,7 @@ int gr_rasta_tmtc1_hw_init(struct gr_rasta_tmtc_priv *priv)
VENDOR_GAISLER, GAISLER_GRPCI2,
ambapp_find_by_idx, NULL);
if ( !tmp ) {
- return -6;
+ return -7;
}
priv->grpci2 = (struct grpci2_regs *)
((struct ambapp_apb_info *)tmp->devinfo)->start;
@@ -637,7 +624,7 @@ int gr_rasta_tmtc_init1(struct drvmgr_dev *dev)
switch (devinfo->rev) {
case 0:
puts("GR-RASTA-TMTC: REVISION 0");
- status = gr_rasta_tmtc_hw_init(priv);
+ status = gr_rasta_tmtc0_hw_init(priv);
break;
case 1:
puts("GR-RASTA-TMTC: REVISION 1");
--
1.7.0.4
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