+// SPDX-License-Identifier: BSD-3-Clause
/*
* Qualcomm SPMI bus driver
*
* (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
*
* Loosely based on Little Kernel driver
- *
- * SPDX-License-Identifier: BSD-3-Clause
*/
#include <common.h>
DECLARE_GLOBAL_DATA_PTR;
+/* PMIC Arbiter configuration registers */
+#define PMIC_ARB_VERSION 0x0000
+#define PMIC_ARB_VERSION_V2_MIN 0x20010000
+
#define ARB_CHANNEL_OFFSET(n) (0x4 * (n))
#define SPMI_CH_OFFSET(chnl) ((chnl) * 0x8000)
struct udevice *parent = dev->parent;
struct msm_spmi_priv *priv = dev_get_priv(dev);
int node = dev_of_offset(dev);
+ u32 hw_ver;
+ bool is_v1;
int i;
priv->arb_chnl = devfdt_get_addr(dev);
dev_of_offset(parent), node, "reg", 1, NULL, false);
priv->spmi_obs = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
dev_of_offset(parent), node, "reg", 2, NULL, false);
+
+ hw_ver = readl(priv->arb_chnl + PMIC_ARB_VERSION - 0x800);
+ is_v1 = (hw_ver < PMIC_ARB_VERSION_V2_MIN);
+
+ dev_dbg(dev, "PMIC Arb Version-%d (0x%x)\n", (is_v1 ? 1 : 2), hw_ver);
+
if (priv->arb_chnl == FDT_ADDR_T_NONE ||
priv->spmi_core == FDT_ADDR_T_NONE ||
priv->spmi_obs == FDT_ADDR_T_NONE)
return -EINVAL;
/* Scan peripherals connected to each SPMI channel */
- for (i = 0; i < SPMI_MAX_CHANNELS ; i++) {
+ for (i = 0; i < SPMI_MAX_PERIPH ; i++) {
uint32_t periph = readl(priv->arb_chnl + ARB_CHANNEL_OFFSET(i));
uint8_t slave_id = (periph & 0xf0000) >> 16;
uint8_t pid = (periph & 0xff00) >> 8;